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Add elfutils-0.170

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(from https://sourceware.org/elfutils/, GPL/LGPL licensed)
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Wolfgang Thaller 2017-09-21 21:04:42 +02:00
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For Now:
Ulrich Drepper.
Roland McGrath
Petr Machata

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The project home is http://elfutils.org/
The current elfutils source code can be checked out with
git clone git://sourceware.org/git/elfutils.git
The developer mailinglist to send patches to is
elfutils-devel@sourceware.org.
https://sourceware.org/ml/elfutils-devel/
To subscribe send an email to elfutils-devel-subscribe@sourceware.org
Or use the form at https://sourceware.org/lists.html#ml-requestor
Please supply patches using git format-patch or using git send-email.
Sign your work
To facilitate tracking of who did what, we've adopted a "sign-off"
procedure for patches based on the procedure used by the Linux kernel
project.
The sign-off is a simple line at the end of the explanation for the
patch, which certifies that you wrote it or otherwise have the right
to pass it on as a patch under an appropriate license. The rules are
pretty simple: if you can certify the below:
Developer's Certificate of Origin
By making a contribution to this project, I certify that:
(a) The contribution was created in whole or in part by me,
and I have the right to submit the contribution under each
license indicated in, or otherwise designated as being
applicable to, the file.
(b) The contribution was provided directly to me by some other
person who certified (a), and I have not modified it.
(c) I understand and agree that the project and the
contribution are public and that a record of the
contribution (including all personal information I submit
with it, including my sign-off) is maintained indefinitely
and may be redistributed.
then you just add a line saying
Signed-off-by: Random J Developer <random@developer.example.org>
using your real name (sorry, no pseudonyms or anonymous contributions.)
git commit --signoff will add such a Signed-off-by line at the end of
the commit log message for you.
The ideal patch contains a ChangeLog entry and a test case for the
bug fixed or feature added.
The testsuite (make check) is expected to have zero failing tests.
Do not knowingly add tests that FAIL. If there are architectures or
configurations where a tests is not supported make sure they are
skipped instead of failing. Adding "exit 77" in the test shell wrapper
indicates that a test was SKIPPED.
We do allow binaries in the testsuite for tests that only need to
read ELF or DWARF data and if generating the data in the testcase
itself is difficult or would be architecture specific.
The binaries should be bzip2 compressed. Add a note in the test
wrapper run-<testcase>.sh script how to regenerate the binary.
After sending your patch to the mailinglist one of the committers
to the project will review it, give feedback, and if perfect they
will commit it for you.
You can become a maintainer/committer yourself after you have provided
at least a handful of accepted patches and agree to the guidelines in
this document for creating, reviewing, accepting and committing patches.
To become a committer you need a sourceware account:
https://sourceware.org/cgi-bin/pdw/ps_form.cgi
Upload a SSH public key and have an existing maintainer sponsor you
for the elfutils group.
committers can push patches through:
ssh://<user>@sourceware.org/git/elfutils.git
The current webpages published at https://sourceware.org/elfutils/
can be checked out with:
git clone ssh://<user>@sourceware.org/git/elfutils-htdocs.git
Patches should also be posted to the mailinglist.
As a maintainer/committer you should still post patches as described
above. And ideally they are reviewed and approved as above. If no
other committer has reviewed or objected to your patch for a week
you may use your own judgement whether you ping your patch or push
it after "self-review". If you do, you should post a message to the
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committers may also create git branches starting with <nickname>/...
patches on these branches are works in progress, so might not be perfect
yet, but should follow the above guidelines as much as possible and should
be aimed at integration into master. For merging a branch into master
the same process as above should be followed by posting the patches
to the list first.
committers/maintainers who repeatedly ignore the above guidelines,
are hostile or offensive towards other committers or contributors,
and don't correct their behavior after being asked by other committers
will be removed as maintainer/committer.

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option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

339
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
of using an interface provided by the Library.
A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".
The "Minimal Corresponding Source" for a Combined Work means the
Corresponding Source for the Combined Work, excluding any source code
for portions of the Combined Work that, considered in isolation, are
based on the Application, and not on the Linked Version.
The "Corresponding Application Code" for a Combined Work means the
object code and/or source code for the Application, including any data
and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.
1. Exception to Section 3 of the GNU GPL.
You may convey a covered work under sections 3 and 4 of this License
without being bound by section 3 of the GNU GPL.
2. Conveying Modified Versions.
If you modify a copy of the Library, and, in your modifications, a
facility refers to a function or data to be supplied by an Application
that uses the facility (other than as an argument passed when the
facility is invoked), then you may convey a copy of the modified
version:
a) under this License, provided that you make a good faith effort to
ensure that, in the event an Application does not supply the
function or data, the facility still operates, and performs
whatever part of its purpose remains meaningful, or
b) under the GNU GPL, with none of the additional permissions of
this License applicable to that copy.
3. Object Code Incorporating Material from Library Header Files.
The object code form of an Application may incorporate material from
a header file that is part of the Library. You may convey such object
code under terms of your choice, provided that, if the incorporated
material is not limited to numerical parameters, data structure
layouts and accessors, or small macros, inline functions and templates
(ten or fewer lines in length), you do both of the following:
a) Give prominent notice with each copy of the object code that the
Library is used in it and that the Library and its use are
covered by this License.
b) Accompany the object code with a copy of the GNU GPL and this license
document.
4. Combined Works.
You may convey a Combined Work under terms of your choice that,
taken together, effectively do not restrict modification of the
portions of the Library contained in the Combined Work and reverse
engineering for debugging such modifications, if you also do each of
the following:
a) Give prominent notice with each copy of the Combined Work that
the Library is used in it and that the Library and its use are
covered by this License.
b) Accompany the Combined Work with a copy of the GNU GPL and this license
document.
c) For a Combined Work that displays copyright notices during
execution, include the copyright notice for the Library among
these notices, as well as a reference directing the user to the
copies of the GNU GPL and this license document.
d) Do one of the following:
0) Convey the Minimal Corresponding Source under the terms of this
License, and the Corresponding Application Code in a form
suitable for, and under terms that permit, the user to
recombine or relink the Application with a modified version of
the Linked Version to produce a modified Combined Work, in the
manner specified by section 6 of the GNU GPL for conveying
Corresponding Source.
1) Use a suitable shared library mechanism for linking with the
Library. A suitable mechanism is one that (a) uses at run time
a copy of the Library already present on the user's computer
system, and (b) will operate properly with a modified version
of the Library that is interface-compatible with the Linked
Version.
e) Provide Installation Information, but only if you would otherwise
be required to provide such information under section 6 of the
GNU GPL, and only to the extent that such information is
necessary to install and execute a modified version of the
Combined Work produced by recombining or relinking the
Application with a modified version of the Linked Version. (If
you use option 4d0, the Installation Information must accompany
the Minimal Corresponding Source and Corresponding Application
Code. If you use option 4d1, you must provide the Installation
Information in the manner specified by section 6 of the GNU GPL
for conveying Corresponding Source.)
5. Combined Libraries.
You may place library facilities that are a work based on the
Library side by side in a single library together with other library
facilities that are not Applications and are not covered by this
License, and convey such a combined library under terms of your
choice, if you do both of the following:
a) Accompany the combined library with a copy of the same work based
on the Library, uncombined with any other library facilities,
conveyed under the terms of this License.
b) Give prominent notice with the combined library that part of it
is a work based on the Library, and explaining where to find the
accompanying uncombined form of the same work.
6. Revised Versions of the GNU Lesser General Public License.
The Free Software Foundation may publish revised and/or new versions
of the GNU Lesser General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the
Library as you received it specifies that a certain numbered version
of the GNU Lesser General Public License "or any later version"
applies to it, you have the option of following the terms and
conditions either of that published version or of any later version
published by the Free Software Foundation. If the Library as you
received it does not specify a version number of the GNU Lesser
General Public License, you may choose any version of the GNU Lesser
General Public License ever published by the Free Software Foundation.
If the Library as you received it specifies that a proxy can decide
whether future versions of the GNU Lesser General Public License shall
apply, that proxy's public statement of acceptance of any version is
permanent authorization for you to choose that version for the
Library.

715
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@ -0,0 +1,715 @@
2017-08-02 Mark Wielaard <mark@klomp.org>
* configure.ac: Set version to 0.170.
* NEWS: Mention new libdw dwarf_line_file function.
2017-07-26 Mark Wielaard <mark@klomp.org>
* NEWS: Mention dwarf_getmacros handling version 5 .debug_macro.
2017-07-26 Mark Wielaard <mark@klomp.org>
* NEWS: Mention dwarf_peel_type DWARF5 tags improvement.
2017-07-26 Mark Wielaard <mark@klomp.org>
* NEWS: Mention new DWARF5 calling conventions and defaulted member
function.
2017-07-26 Mark Wielaard <mark@klomp.org>
* NEWS: Mention new dwarf_default_lower_bound function.
2017-07-25 Mark Wielaard <mark@klomp.org>
* NEWS: Mention new DWARF5 attributes, tags, character encodings
and language codes in dwarf.h.
2017-07-18 Mark Wielaard <mark@klomp.org>
* configure.ac: Don't check for linux/bpf.h.
* NEWS: Mention always build bpf backend.
2017-07-14 Mark Wielaard <mark@klomp.org>
* NEWS: Add 0.170 section and new strip options.
2017-05-05 Mark Wielaard <mark@klomp.org>
* configure.ac: Set version to 0.169. Update copyright year.
* NEWS: Add 0.169 section.
2017-04-21 Ulf Hermann <ulf.hermann@qt.io>
* .gitignore: Add fillfile and peel_type tests.
2017-02-15 Ulf Hermann <ulf.hermann@qt.io>
* configure.ac: Add check for mempcpy.
2017-02-09 Mark Wielaard <mark@klomp.org>
* configure.ac: Add check for adding -D_FORTIFY_SOURCE=2 to CFLAGS.
2017-01-12 Mark Wielaard <mark@klomp.org>
* configure.ac: Define PACKAGE_URL for older autoconf.
2016-12-27 Mark Wielaard <mark@klomp.org>
* configure.ac: Set version to 0.168.
* NEWS: Add 0.168 updates.
2016-12-24 Mark Wielaard <mark@klomp.org>
* README: Move design notes to NOTES. Add URLs for home, releases,
bugs, git and mailinglist now on sourceware.
* NOTES: Add notes from README.
* CONTRIBUTING: Change fedorahosted.org references to new
sourceware.org locations.
* configure.ac (AC_INIT): Add package URL http://elfutils.org/
change bug-report to https://sourceware.org/bugzilla/
(AC_COPYRIGHT): Set to the elfutils developers.
2016-11-23 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add test for bad fts.h. Add -DBAD_FTS=1 to CFLAGS
if necessary.
2016-11-02 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add check for whether gcc accepts
-Wimplict-fallthrough.
2016-10-11 Akihiko Odaki <akihiko.odaki.4i@stu.hosei.ac.jp>
* configure.ac: Add memrchr, rawmemchr and powerof2 checks.
2016-08-04 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.167.
* NEWS: Add 0.167 section.
2016-07-06 Mark Wielaard <mjw@redhat.com>
* .gitignore: Remove src/ld. ldlex.c, ldscript.c and ldscript.h.
* configure.ac (enable generic): Removed.
2016-06-28 Richard Henderson <rth@redhat.com>
* configure.ac (HAVE_LINUX_BPF_H): New test and conditional.
2016-06-10 Mark Wielaard <mjw@redhat.com>
* CONTRIBUTING: Extend patch, committer and maintainer guidelines.
2016-05-02 Filipe Brandenburger <filbranden@google.com>
* configure.ac (argp check): Pass pass &argv.
* configure.ac (-W<...> checks): Pass -Werror to the warning checks,
to ensure unsupported warning options are noticed during ./configure
time and not only later during build.
2016-03-31 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.166.
2016-03-02 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set program_prefix to eu- by default.
* NEWS (0.166): New sections, document --program-prefix default.
2016-02-13 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add check for whether gcc accepts -Wnull-dereference.
2016-02-08 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add checks for sane -Wlogical-op and whether gcc
accepts -Wduplicated-cond.
2016-01-08 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.165.
* NEWS: Add 0.164 section.
2016-01-04 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add BZ2_LIBS and LIBLZMA substitutions.
Add config/libelf.pc and config/libdw.pc config files.
2015-12-31 Mark Wielaard <mjw@redhat.com>
* Makefile.am (AM_MAKEFLAGS): Set --no-print-directory.
2015-10-16 Mark Wielaard <mjw@redhat.com>
* configure.ac: Make zlib mandatory.
2015-10-15 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.164.
* NEWS: Add 0.164 additions.
2015-10-07 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add AM_SILENT_RULES([yes]).
2015-09-24 Jose E. Marchesi <jose.marchesi@oracle.com>
* configure.ac: Use -fPIC instead of -fpic to avoid relocation
overflows in some platforms.
2015-07-11 Pino Toscano <toscano.pino@tiscali.it>
* .gitignore: Add more generated files, and anchor some of the
existing ones.
2015-06-19 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.163.
* NEWS: Mention 0.163 is bug fixes only.
2015-06-10 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.162.
* NEWS: Add 0.162 additions.
2015-06-08 Mark Wielaard <mjw@redhat.com>
* configure.ac (ADD_STACK_USAGE_WARNING): New conditional based on
gcc -Wstack-usage check.
2015-05-31 Mark Wielaard <mjw@redhat.com>
* configure.ac (MODVERSION): Define using LIBEBL_SUBDIR, eu_version
and ac_cv_build.
2015-05-31 Mark Wielaard <mjw@redhat.com>
* configure.ac (use_undefined): Use AC_LINK_IFELSE. AC_DEFINE
CHECK_UNDEFINED.
2015-05-30 Mark Wielaard <mjw@redhat.com>
* configure.ac: Check for bunzip2. Check flex and bison are
installed in maintainer-mode. Otherwise check libdw/known-dwarf.h
is already generated.
2015-05-21 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add --enable-sanitize-undefined.
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Rename to...
(AM_DISTCHECK_CONFIGURE_FLAGS): this. Add --enable-sanitize-undefined.
2015-05-04 Anthony G. Basile <blueness@gentoo.org>
* configure.ac (argp_LDADD): Check if libc has argp and set
argp_LDADD accordingly.
2015-05-03 Max Filippov <jcmvbkbc@gmail.com>
* configure.ac (DEMANGLE): Fix enable_demangler setting.
2015-05-01 Mark Wielaard <mjw@redhat.com>
* configure.ac (DEMANGLE): Explicitly set enable_demangler.
2015-05-01 Mark Wielaard <mjw@redhat.com>
* configure.ac (debugpred): Use and set use_debugpred_val.
(textrelcheck): Explicitly set enable_textrelcheck to yes or no.
(symbol-versioning): Likewise for enable_symbol_versioning.
AC_MSG_NOTICE overview of enabled/disabled features.
2015-04-23 Max Filippov <jcmvbkbc@gmail.com>
* configure.ac: Add --disable-symbol-versioning.
2015-04-14 Mark Wielaard <mjw@redhat.com>
* configure.ac (ac_cv_c99): Add explicit checks for all GNU99
extensions used.
2015-03-13 Mark Wielaard <mjw@redhat.com>
* configure.ac (ac_cv_c99): Add explicit return.
(ac_cv_tls): Add stdlib.h include.
2014-12-18 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.161.
* NEWS: Add dwarf.h additions.
2014-12-15 Josh Stone <jistone@redhat.com>
* .gitignore: Add config/compile as installed by automake 1.14.
2014-11-27 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add --disable-textrelcheck.
2014-10-06 Mark Wielaard <mjw@redhat.com>
* NEWS: New section 0.161. Add dwarf_peel_type.
2014-08-25 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.160.
* NEWS: Add removal of DW_TAG_mutable_type, LZMA .ko.xz kernel
module support, ARM THUMB functions and ppc64le ELFv2 abi backends.
2014-08-15 Mark Wielaard <mjw@redhat.com>
* NEWS: Add dwarf_cu_die.
2014-08-15 Mark Wielaard <mjw@redhat.com>
* NEWS: Add dwarf_cu_getdwarf.
2014-07-18 Mark Wielaard <mjw@redhat.com>
* configure.ac (AC_CHECK_TYPE): Test for struct user_regs_struct.
2014-05-26 Mark Wielaard <mjw@redhat.com>
* NEWS: New section 0.160. Add unstrip --force.
2014-05-17 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.159.
* NEWS: Add entries for version 0.159.
2014-05-02 Mark Wielaard <mjw@redhat.com>
* NEWS: Add note about dwz support no longer being experimental and
new helper functions.
* configure.ac: Remove --enable-dwz.
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Remove --enable-dwz.
2014-04-11 Mark Wielaard <mjw@redhat.com>
* Makefile.am (SUBDIRS): Add libdwelf.
* configure.ac (AC_CONFIG_FILES): Add libdwelf/Makefile.
* NEWS: Add note about libdwelf.
2014-04-13 Mark Wielaard <mjw@redhat.com>
* configure.ac: Remove mudflap enable arg and MUDFLAP conditional.
2014-01-21 Mark Wielaard <mjw@redhat.com>
* NEWS (Version 0.159): Add stack -i.
2014-01-20 Mark Wielaard <mjw@redhat.com>
* NEWS (Version 0.159): New. Add stack -d.
2014-01-03 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.158.
* NEWS: Add entries for version 0.158.
2013-12-20 Mark Wielaard <mjw@redhat.com>
* NEWS (libdwfl): Add dwfl_getthread_frames.
(stack): New entry.
2013-12-18 Mark Wielaard <mjw@redhat.com>
* NEWS (libdwfl): Add dwfl_module_getsym_info and
dwfl_module_addrinfo.
(addr2line): Add -x option.
2013-12-17 Jan Kratochvil <jan.kratochvil@redhat.com>
* NEWS (Version 0.158) (libdwfl): Added Dwfl_Thread_Callbacks,
Dwfl_Thread, Dwfl_Frame, dwfl_attach_state, dwfl_pid, dwfl_thread_dwfl,
dwfl_thread_tid, dwfl_frame_thread, dwfl_thread_state_registers,
dwfl_thread_state_register_pc, dwfl_getthreads, dwfl_thread_getframes
and dwfl_frame_pc.
2013-12-16 Mark Wielaard <mjw@redhat.com>
* NEWS (libdwfl): Add dwfl_module_getsymtab_first_global.
2013-12-09 Josh Stone <jistone@redhat.com>
* .gitignore: Add config/ar-lib, installed due to AM_PROG_AR.
2013-12-02 Jan Kratochvil <jan.kratochvil@redhat.com>
* configure.ac (CC_BIARCH): Remove AS_IF for it.
2013-11-07 Jan Kratochvil <jan.kratochvil@redhat.com>
* configure.ac: New AC_CHECK_SIZEOF for long. Call utrace_BIARCH, new
AC_SUBST for CC_BIARCH.
2013-11-06 Mark Wielaard <mjw@redhat.com>
* configure.ac (--enable-dwz): Add AC_MSG_WARN when disabled but
local system does have /usr/lib/debug/.dwz.
2013-11-06 Mark Wielaard <mjw@redhat.com>
* configure.ac (--enable-thread-safety): Add AC_MSG_WARN experimental
option.
2013-11-01 Michael Forney <mforney@mforney.org>
* configure.ac: Call AM_PROG_AR and AC_CHECK_TOOL for readelf and nm.
2013-10-30 Jan Kratochvil <jan.kratochvil@redhat.com>
* NEWS (Version 0.158): New.
2013-09-30 Mark Wielaard <mjw@redhat.com>
* NEWS: Update for readelf NT_SIGINFO and NT_FILE core notes.
2013-09-27 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.157.
* NEWS: Add entries for version 0.157.
2013-09-20 Mark Wielaard <mjw@redhat.com>
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Add --enable-dwz.
2013-07-25 Jan Kratochvil <jan.kratochvil@redhat.com>
* configure.ac: Set version to 0.156.
2013-07-19 Jan Kratochvil <jan.kratochvil@redhat.com>
* NEWS: Remove bugfix only entries from Version 0.156.
2013-07-18 Jan Kratochvil <jan.kratochvil@redhat.com>
* NEWS: Add entries for Version 0.156.
2013-04-28 Jan Kratochvil <jan.kratochvil@redhat.com>
* NEWS (Version 0.156): New.
2013-04-26 Mark Wielaard <mjw@redhat.com>
* configure.ac (AM_INIT_AUTOMAKE): Request parallel-tests.
2013-04-25 Mark Wielaard <mjw@redhat.com>
* .gitignore: Add config/test-driver as installed by automake 1.13.
* configure.ac (AM_INIT_AUTOMAKE): Require at least automake 1.11.
2012-10-01 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add --enable-valgrind check.
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Add --enable-valgrind.
2012-08-27 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.155.
2012-08-24 Mark Wielaard <mjw@redhat.com>
* configure.ac: Add --enable-dwz check, defaults to no.
2012-07-24 Mark Wielaard <mjw@redhat.com>
* TODO: Add note on shdrs after elf_cntl (ELF_C_FDREAD).
2012-06-22 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.154.
2012-01-24 Mark Wielaard <mjw@redhat.com>
* COPYING: Fix address. Updated version from gnulib.
2012-01-23 Mark Wielaard <mjw@redhat.com>
* configure.ac: Set version to 0.153, update copyright years.
2012-01-20 Roland McGrath <roland@hack.frob.com>
* configure.ac: Handle --enable-deterministic-archives.
2011-10-08 Roland McGrath <roland@hack.frob.com>
* configure.ac (eu_version): Use sed instead of ${x/y/z} syntax.
Use POSIX.2 $((...)) syntax instead of $[...].
Reported by Mike Frysinger <vapier@gentoo.org>.
2011-10-08 Mike Frysinger <vapier@gentoo.org>
* configure.ac: Fix use of AC_ARG_ENABLE to handle $enableval correctly.
2011-10-02 Ulrich Drepper <drepper@gmail.com>
* configure.ac: Check for __cxa_demangle in libstdc++.
2011-02-08 Roland McGrath <roland@redhat.com>
* configure.ac (C99 check): Use AC_LANG_SOURCE.
* configure.ac (ALL_LINGUAS): Remove variable, now obsolete.
2010-09-13 Ulrich Drepper <drepper@redhat.com>
* configure.ac (ALL_LINGUAS): Add languages which have some
translations.
2010-04-15 Roland McGrath <roland@redhat.com>
* configure.ac (LOCALEDIR, DATADIRNAME): Removed.
2009-09-21 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Update for more modern autoconf.
2009-08-26 Roland McGrath <roland@redhat.com>
* configure.ac (zip_LIBS): Check for liblzma too.
2009-04-19 Roland McGrath <roland@redhat.com>
* configure.ac (eu_version): Round down here, not in version.h macros.
2009-04-17 Roland McGrath <roland@redhat.com>
* configure.ac (eu_version): Compute number 1000 times larger,
let $PACKAGE_VERSION be x.y.z as well as x.y (implied x.y.0).
2009-01-23 Roland McGrath <roland@redhat.com>
* configure.ac (zlib check): Check for gzdirect, need zlib >= 1.2.2.3.
* configure.ac (__thread check): Use AC_LINK_IFELSE, in case of
building with compiler support but no working runtime support.
2009-01-22 Ulrich Drepper <drepper@redhat.com>
* Makefile.am (rpm): The tarball is now bzip2-compressed.
2009-01-10 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Require gcc with TLS support.
Rename USE_TLS to USE_LOCKS. The option is renamed to
--enable-thread-safety.
2009-01-08 Roland McGrath <roland@redhat.com>
* configure.ac (eu_ZIPLIB): Moved to m4/zip.am.
2009-01-05 Roland McGrath <roland@redhat.com>
* configure.ac (eu_ZIPLIB): New macro.
Use it to test for -lz, -lbz2, set .am ZLIB, BZLIB, zip_LIBS.
2008-12-30 Ulrich Drepper <drepper@redhat.com>
* configure.ac: We need automake 1.8 now.
2008-12-24 Roland McGrath <roland@redhat.com>
* configure.ac: Use automake flags dist-bzip2 no-dist-gzip,
distribute only in .tar.bz2 form now.
2008-12-16 Roland McGrath <roland@redhat.com>
* Makefile.am (pkginclude_HEADERS): New variable, install version.h.
* configure.ac: Create it, substituting @eu_version@ with
PACKAGE_VERSION canonicalized to four digits of decimal.
2008-08-25 Roland McGrath <roland@redhat.com>
* configure.ac (--enable-tls): Set AM_CONDITIONAL USE_TLS too.
2008-08-21 Roland McGrath <roland@redhat.com>
* configure.ac (AH_BOTTOM): Emit #include <eu-config.h> and
move the contents to lib/eu-config.h instead of keeping them here.
2007-12-20 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Add support for --enable-debugpred.
Update likely/unlikely macros for it.
2007-06-05 Ulrich Drepper <drepper@redhat.com>
* Makefile.am: Remove traces of mini builds.
* configure.ac: Don't use libelf-po/POTFILES.in as config file
anymore.
2007-05-16 Roland McGrath <roland@redhat.com>
* configure.ac (AM_INIT_AUTOMAKE): Use -Wno-portability.
2006-11-02 Roland McGrath <roland@redhat.com>
* Makefile.am (EXTRA_DIST): Add EXCEPTION file.
2006-08-29 Roland McGrath <roland@redhat.com>
* configure.ac: Use AM_MAINTAINER_MODE.
2006-07-12 Ulrich Drepper <drepper@redhat.com>
* configure.ac (internal_function): Don't use internal visibility.
2006-07-05 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Add dummy automake conditional to get dependencies
for non-generic linker right. See src/Makefile.am.
2005-11-18 Roland McGrath <roland@redhat.com>
* Makefile.am (DISTCHECK_CONFIGURE_FLAGS): New variable.
2005-11-16 Roland McGrath <roland@redhat.com>
* configure.ac: Define HAVE_LIBASM and STANDALONE conditionals.
In config.h, define ELFUTILS_HEADER macro.
2005-11-15 Roland McGrath <roland@redhat.com>
* Makefile.am (all_SUBDIRS): Add backends.
* configure.ac: Write backends/Makefile.
* configure.ac: Add --enable-tests-rpath option.
2005-09-16 Roland McGrath <roland@redhat.com>
* configure.ac (ALLOW_UNALIGNED) [__ia64__ || __alpha__]:
Don't set it, since on IA64 you get error messages for unaligned
accesses, and on Alpha it's at least very slow.
2005-08-29 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Fix GCOV make condition generation.
2005-08-28 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Add --enable-gcov option.
2005-08-06 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Add --enable-gprof option.
2005-07-27 Roland McGrath <roland@redhat.com>
* Makefile.am (all_SUBDIRS): Put libdwfl before libdw.
2005-07-21 Roland McGrath <roland@redhat.com>
* configure.ac: Take --enable-libebl-subdir=DIR to set LIBEBL_SUBDIR.
2005-06-01 Roland McGrath <roland@redhat.com>
* Makefile.am (all_SUBDIRS): Add libdwfl.
* configure.ac: Write libdwfl/Makefile.
2005-05-19 Roland McGrath <roland@redhat.com>
* configure.ac [AH_BOTTOM] (INTDECL, _INTDECL): New macros.
2005-05-10 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Define MODVERSION in config.h.
2005-02-22 Ulrich Drepper <drepper@redhat.com>
* Makefile.am (all_SUBDIRS): Don't add doc subdir for now.
* configure.ac: Don't use doc subdir for now.
2005-02-15 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Remove AM_GNU_GETTEXT use. Use only AM_PO_SUBDIRS.
2005-02-06 Ulrich Drepper <drepper@redhat.com>
* configure.ac (AM_INIT_AUTOMAKE): Removed dist-bzip2.
* Makefile.am (EXTRA_DIST): Remove splint.rc.
* splint.rc: Removed.
2004-09-25 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Make compile with gcc 4.0.
2004-03-06 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Use AS_HELP_STRING where applicable.
2004-01-23 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Check for C99 compiler.
* configure.ac: Change locking macros in config.h to at least
evaluate the parameter. Define base_cpu to none for generic linker.
2004-01-21 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Print error message in case --disable-generic is
used if no linker support for the architecture is available.
2004-01-18 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Dont generate libebl-po/Makefile.in,
libdw-po/Makefile.in, libasm-po/Makefile.in.
* Makefile.am (all_SUBDIRS): Remove libebl-po, libdw-po, libasm-po.
2004-01-17 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Pretty printing of help message.
* configure.ac: Move AC_SYS_LARGEFILE test to the front.
* configure.ac: Add --enable-mudflap option.
2004-01-17 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Major cleanups. Use aux dir.
* config.guess: Moved to new config subdir.
* config.rpath: Likewise.
* config.sub: Likewise.
* depcomp: Likewise.
* install-sh: Likewise.
* missing: Likewise.
* mkinstalldirs: Likewise.
* Makefile.am (mini_SUBDIRS): Add config.
(EXTRA_DIST): Remove config.rpath.
* configure.ac: Add AC_REVISION.
* configure.ac: Add --enable-mudflap option.
2004-01-11 Ulrich Drepper <drepper@redhat.com>
* configure.ac: Drop libdwarf directory. Add libdw-po.
* Makefile.am (all_SUBDIRS): Likewise.
* elfutils.spec: Don't distribute anything from libdwarf.
2004-01-05 Ulrich Drepper <drepper@redhat.com>
* Makefile.am: Support separate libelf built.
* elfutils.spec.in: Create separata elfutils-libelf-devel package.
Install libdw DSOs.
* configure.ac (AC_CONFIG_SRCDIR): Use libelf/libelf.h as the file
name.
2003-08-13 Ulrich Drepper <drepper@redhat.com>
* elfutils.spec.in: Remove references to libebl.so.
2003-08-11 Ulrich Drepper <drepper@redhat.com>
* Moved to CVS archive.
2000-08-25 Ulrich Drepper <drepper@redhat.com>
* The beginning. See the NEWS file for the time being.

33
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Public key for drepper@redhat.com
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Installation Instructions
*************************
Copyright (C) 1994-1996, 1999-2002, 2004-2013 Free Software Foundation,
Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. This file is offered as-is,
without warranty of any kind.
Basic Installation
==================
Briefly, the shell command `./configure && make && make install'
should configure, build, and install this package. The following
more-detailed instructions are generic; see the `README' file for
instructions specific to this package. Some packages provide this
`INSTALL' file but do not implement all of the features documented
below. The lack of an optional feature in a given package is not
necessarily a bug. More recommendations for GNU packages can be found
in *note Makefile Conventions: (standards)Makefile Conventions.
The `configure' shell script attempts to guess correct values for
various system-dependent variables used during compilation. It uses
those values to create a `Makefile' in each directory of the package.
It may also create one or more `.h' files containing system-dependent
definitions. Finally, it creates a shell script `config.status' that
you can run in the future to recreate the current configuration, and a
file `config.log' containing compiler output (useful mainly for
debugging `configure').
It can also use an optional file (typically called `config.cache'
and enabled with `--cache-file=config.cache' or simply `-C') that saves
the results of its tests to speed up reconfiguring. Caching is
disabled by default to prevent problems with accidental use of stale
cache files.
If you need to do unusual things to compile the package, please try
to figure out how `configure' could check whether to do them, and mail
diffs or instructions to the address given in the `README' so they can
be considered for the next release. If you are using the cache, and at
some point `config.cache' contains results you don't want to keep, you
may remove or edit it.
The file `configure.ac' (or `configure.in') is used to create
`configure' by a program called `autoconf'. You need `configure.ac' if
you want to change it or regenerate `configure' using a newer version
of `autoconf'.
The simplest way to compile this package is:
1. `cd' to the directory containing the package's source code and type
`./configure' to configure the package for your system.
Running `configure' might take a while. While running, it prints
some messages telling which features it is checking for.
2. Type `make' to compile the package.
3. Optionally, type `make check' to run any self-tests that come with
the package, generally using the just-built uninstalled binaries.
4. Type `make install' to install the programs and any data files and
documentation. When installing into a prefix owned by root, it is
recommended that the package be configured and built as a regular
user, and only the `make install' phase executed with root
privileges.
5. Optionally, type `make installcheck' to repeat any self-tests, but
this time using the binaries in their final installed location.
This target does not install anything. Running this target as a
regular user, particularly if the prior `make install' required
root privileges, verifies that the installation completed
correctly.
6. You can remove the program binaries and object files from the
source code directory by typing `make clean'. To also remove the
files that `configure' created (so you can compile the package for
a different kind of computer), type `make distclean'. There is
also a `make maintainer-clean' target, but that is intended mainly
for the package's developers. If you use it, you may have to get
all sorts of other programs in order to regenerate files that came
with the distribution.
7. Often, you can also type `make uninstall' to remove the installed
files again. In practice, not all packages have tested that
uninstallation works correctly, even though it is required by the
GNU Coding Standards.
8. Some packages, particularly those that use Automake, provide `make
distcheck', which can by used by developers to test that all other
targets like `make install' and `make uninstall' work correctly.
This target is generally not run by end users.
Compilers and Options
=====================
Some systems require unusual options for compilation or linking that
the `configure' script does not know about. Run `./configure --help'
for details on some of the pertinent environment variables.
You can give `configure' initial values for configuration parameters
by setting variables in the command line or in the environment. Here
is an example:
./configure CC=c99 CFLAGS=-g LIBS=-lposix
*Note Defining Variables::, for more details.
Compiling For Multiple Architectures
====================================
You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory. To do this, you can use GNU `make'. `cd' to the
directory where you want the object files and executables to go and run
the `configure' script. `configure' automatically checks for the
source code in the directory that `configure' is in and in `..'. This
is known as a "VPATH" build.
With a non-GNU `make', it is safer to compile the package for one
architecture at a time in the source code directory. After you have
installed the package for one architecture, use `make distclean' before
reconfiguring for another architecture.
On MacOS X 10.5 and later systems, you can create libraries and
executables that work on multiple system types--known as "fat" or
"universal" binaries--by specifying multiple `-arch' options to the
compiler but only a single `-arch' option to the preprocessor. Like
this:
./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
CPP="gcc -E" CXXCPP="g++ -E"
This is not guaranteed to produce working output in all cases, you
may have to build one architecture at a time and combine the results
using the `lipo' tool if you have problems.
Installation Names
==================
By default, `make install' installs the package's commands under
`/usr/local/bin', include files under `/usr/local/include', etc. You
can specify an installation prefix other than `/usr/local' by giving
`configure' the option `--prefix=PREFIX', where PREFIX must be an
absolute file name.
You can specify separate installation prefixes for
architecture-specific files and architecture-independent files. If you
pass the option `--exec-prefix=PREFIX' to `configure', the package uses
PREFIX as the prefix for installing programs and libraries.
Documentation and other data files still use the regular prefix.
In addition, if you use an unusual directory layout you can give
options like `--bindir=DIR' to specify different values for particular
kinds of files. Run `configure --help' for a list of the directories
you can set and what kinds of files go in them. In general, the
default for these options is expressed in terms of `${prefix}', so that
specifying just `--prefix' will affect all of the other directory
specifications that were not explicitly provided.
The most portable way to affect installation locations is to pass the
correct locations to `configure'; however, many packages provide one or
both of the following shortcuts of passing variable assignments to the
`make install' command line to change installation locations without
having to reconfigure or recompile.
The first method involves providing an override variable for each
affected directory. For example, `make install
prefix=/alternate/directory' will choose an alternate location for all
directory configuration variables that were expressed in terms of
`${prefix}'. Any directories that were specified during `configure',
but not in terms of `${prefix}', must each be overridden at install
time for the entire installation to be relocated. The approach of
makefile variable overrides for each directory variable is required by
the GNU Coding Standards, and ideally causes no recompilation.
However, some platforms have known limitations with the semantics of
shared libraries that end up requiring recompilation when using this
method, particularly noticeable in packages that use GNU Libtool.
The second method involves providing the `DESTDIR' variable. For
example, `make install DESTDIR=/alternate/directory' will prepend
`/alternate/directory' before all installation names. The approach of
`DESTDIR' overrides is not required by the GNU Coding Standards, and
does not work on platforms that have drive letters. On the other hand,
it does better at avoiding recompilation issues, and works well even
when some directory options were not specified in terms of `${prefix}'
at `configure' time.
Optional Features
=================
If the package supports it, you can cause programs to be installed
with an extra prefix or suffix on their names by giving `configure' the
option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
Some packages pay attention to `--enable-FEATURE' options to
`configure', where FEATURE indicates an optional part of the package.
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
is something like `gnu-as' or `x' (for the X Window System). The
`README' should mention any `--enable-' and `--with-' options that the
package recognizes.
For packages that use the X Window System, `configure' can usually
find the X include and library files automatically, but if it doesn't,
you can use the `configure' options `--x-includes=DIR' and
`--x-libraries=DIR' to specify their locations.
Some packages offer the ability to configure how verbose the
execution of `make' will be. For these packages, running `./configure
--enable-silent-rules' sets the default to minimal output, which can be
overridden with `make V=1'; while running `./configure
--disable-silent-rules' sets the default to verbose, which can be
overridden with `make V=0'.
Particular systems
==================
On HP-UX, the default C compiler is not ANSI C compatible. If GNU
CC is not installed, it is recommended to use the following options in
order to use an ANSI C compiler:
./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
and if that doesn't work, install pre-built binaries of GCC for HP-UX.
HP-UX `make' updates targets which have the same time stamps as
their prerequisites, which makes it generally unusable when shipped
generated files such as `configure' are involved. Use GNU `make'
instead.
On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
parse its `<wchar.h>' header file. The option `-nodtk' can be used as
a workaround. If GNU CC is not installed, it is therefore recommended
to try
./configure CC="cc"
and if that doesn't work, try
./configure CC="cc -nodtk"
On Solaris, don't put `/usr/ucb' early in your `PATH'. This
directory contains several dysfunctional programs; working variants of
these programs are available in `/usr/bin'. So, if you need `/usr/ucb'
in your `PATH', put it _after_ `/usr/bin'.
On Haiku, software installed for all users goes in `/boot/common',
not `/usr/local'. It is recommended to use the following options:
./configure --prefix=/boot/common
Specifying the System Type
==========================
There may be some features `configure' cannot figure out
automatically, but needs to determine by the type of machine the package
will run on. Usually, assuming the package is built to be run on the
_same_ architectures, `configure' can figure that out, but if it prints
a message saying it cannot guess the machine type, give it the
`--build=TYPE' option. TYPE can either be a short name for the system
type, such as `sun4', or a canonical name which has the form:
CPU-COMPANY-SYSTEM
where SYSTEM can have one of these forms:
OS
KERNEL-OS
See the file `config.sub' for the possible values of each field. If
`config.sub' isn't included in this package, then this package doesn't
need to know the machine type.
If you are _building_ compiler tools for cross-compiling, you should
use the option `--target=TYPE' to select the type of system they will
produce code for.
If you want to _use_ a cross compiler, that generates code for a
platform different from the build platform, you should specify the
"host" platform (i.e., that on which the generated programs will
eventually be run) with `--host=TYPE'.
Sharing Defaults
================
If you want to set default values for `configure' scripts to share,
you can create a site shell script called `config.site' that gives
default values for variables like `CC', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists. Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.
Defining Variables
==================
Variables not defined in a site shell script can be set in the
environment passed to `configure'. However, some packages may run
configure again during the build, and the customized values of these
variables may be lost. In order to avoid this problem, you should set
them in the `configure' command line, using `VAR=value'. For example:
./configure CC=/usr/local2/bin/gcc
causes the specified `gcc' to be used as the C compiler (unless it is
overridden in the site shell script).
Unfortunately, this technique does not work for `CONFIG_SHELL' due to
an Autoconf limitation. Until the limitation is lifted, you can use
this workaround:
CONFIG_SHELL=/bin/bash ./configure CONFIG_SHELL=/bin/bash
`configure' Invocation
======================
`configure' recognizes the following options to control how it
operates.
`--help'
`-h'
Print a summary of all of the options to `configure', and exit.
`--help=short'
`--help=recursive'
Print a summary of the options unique to this package's
`configure', and exit. The `short' variant lists options used
only in the top level, while the `recursive' variant lists options
also present in any nested packages.
`--version'
`-V'
Print the version of Autoconf used to generate the `configure'
script, and exit.
`--cache-file=FILE'
Enable the cache: use and save the results of the tests in FILE,
traditionally `config.cache'. FILE defaults to `/dev/null' to
disable caching.
`--config-cache'
`-C'
Alias for `--cache-file=config.cache'.
`--quiet'
`--silent'
`-q'
Do not print messages saying which checks are being made. To
suppress all normal output, redirect it to `/dev/null' (any error
messages will still be shown).
`--srcdir=DIR'
Look for the package's source code in directory DIR. Usually
`configure' can determine that directory automatically.
`--prefix=DIR'
Use DIR as the installation prefix. *note Installation Names::
for more details, including other options available for fine-tuning
the installation locations.
`--no-create'
`-n'
Run the configure checks, but stop before creating any output
files.
`configure' also accepts some other, not widely useful, options. Run
`configure --help' for more details.

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## Process this file with automake to create Makefile.in
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##
## Copyright (C) 1996-2006, 2008, 2009, 2015 Red Hat, Inc.
##
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##
## This file is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or
## (at your option) any later version.
##
## elfutils is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
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.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am \
am--refresh check check-am clean clean-cscope clean-generic \
cscope cscopelist-am ctags ctags-am dist dist-all dist-bzip2 \
dist-gzip dist-lzip dist-shar dist-tarZ dist-xz dist-zip \
distcheck distclean distclean-generic distclean-hdr \
distclean-tags distcleancheck distdir distuninstallcheck dvi \
dvi-am html html-am info info-am install install-am \
install-data install-data-am install-dvi install-dvi-am \
install-exec install-exec-am install-html install-html-am \
install-info install-info-am install-man install-pdf \
install-pdf-am install-pkgincludeHEADERS install-ps \
install-ps-am install-strip installcheck installcheck-am \
installdirs installdirs-am maintainer-clean \
maintainer-clean-generic mostlyclean mostlyclean-generic pdf \
pdf-am ps ps-am tags tags-am uninstall uninstall-am \
uninstall-pkgincludeHEADERS
.PRECIOUS: Makefile
distcheck-hook:
chmod -R u+w $(distdir)
rpm: dist
rpmbuild -ts --sign elfutils-@PACKAGE_VERSION@.tar.bz2
# Tell version 3.79 and up of GNU make to not build goals in this
# directory in parallel.
.NOTPARALLEL:
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:

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Fundamental design decision:
- the sizes of external and internal types are assumed to be the same.
This leaves byte ordering aside. While assuming this the code can be
greatly simplified and speed increases. Since no change violating this
assumption is in sight this is believed to be a worthwhile optimization.
- the ABI of the backend modules is not guaranteed. Really, no guarantee
whatsoever. We are enforcing this in the code. The modules and their
users must match. No third-party EBL module are supported or allowed.
The only reason there are separate modules is to not have the code for
all architectures in all the binaries.
- although the public libraries (libasm, libdw) have a stable API and are
backwards ABI compatible they, and the elfutils tools, do depend on each
others internals, and on internals of libelf to provide their interfaces.
So they should always be upgraded in lockstep when packaging the tools
and libraries separately. For one example of how to do that, see the
config/elfutils.spec.
Some notes:
- old GNU ld's behavior wrt DSOs seems to be severely broken.
y.o reference foo()
y1.o defines foo(), references bar()
y2.o defines bar()
libbar.so defines bar()
Running
gcc -o y y.o -lbar y1.o y2.o
uses the bar() definition from libbar.so and does not mention the definition
in y2.o at all (no duplicate symbol message). Correct is to use the
definition in y2.o.
y.o reference foo()
y1.o defines foo(), references bar()
y2.o in liby2.a defines bar()
libbar.so defines bar()
Running
gcc -o y y.o -lbar y1.o -ly3
has to use the definition in -lbar and not pull the definition from liby3.a.
- the old linker follows DT_NEEDED entries and adds the objects referenced
this way which define a symbol which is needed as a DT_NEEDED to the
generated binary. This is wrong since the DT_NEEDED changes the search
path in the object (which is breadth first).
- the old linker supported extern "C++", extern "java" in version scripts.
I believe this implementation is severly broken and needs a redesign
(how do wildcards work with these languages*?). Therefore it is left
out for now.
- what should happen if two sections in different files with the same
name have different types and/or the flags are different
- section names in input files are mostly irrelevant. Exceptions:
.comment/SHT_PROGBITS in strip, ld
.debug \
.line |
.debug_srcinfo |
.debug_sfnames |
.debug_aranges |
.debug_pubnames |
.debug_info |
.debug_abbrev |
.debug_line |
.debug_abbrev > DWARF sections in ld
.debug_line |
.debug_frame |
.debug_str |
.debug_loc |
.debug_macinfo |
.debug_weaknames |
.debug_funcnames |
.debug_typenames |
.debug_varnames /
Sections created in output files follow the naming of special section
from the gABI.
In no place is a section solely indentified by its name. Internal
references always use the section index.

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The elfutils project provides libraries and tools for ELF files and DWARF data.
The project home is http://elfutils.org/
Releases are published at ftp://sourceware.org/pub/elfutils/
Which can also be found at https://sourceware.org/elfutils/ftp/
Please reports bugs at https://sourceware.org/bugzilla/
The current elfutils source code can be checked out with
git clone git://sourceware.org/git/elfutils.git
The developer mailinglist to send patches to is
elfutils-devel@sourceware.org.
https://sourceware.org/ml/elfutils-devel/
To subscribe send an email to elfutils-devel-subscribe@sourceware.org
Or use the form at https://sourceware.org/lists.html#ml-requestor
See the CONTRIBUTING file for how to propose patches to the code.
See the NOTES files for some design decisions and notes.

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At least the following have submitted valuable patches:
Jeff Johnson building. rpm wrestling
Alexander Larsson separate debug info
Jakub Jelinek bug fixes, testing
Denys Vlasenko bug fuxes

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ToDo list for elfutils -*-outline-*-
----------------------
Time-stamp: <2009-02-05 22:08:01 drepper>
* mkinstalldirs
Remove everywhere. Use mkdir -p.
* libelf:
** verify section
Currently the elf_update function trusts the user blindly if the
ELF_F_LAYOUT flag is set. This is OK if the data is prepared by a
ELF_C_NULL call but not if the user prepared the data herself
** break out archive handling from elf_begin
The handling of archives (especially of the symbol tables) must be
broken out of elf_begin. There are several different forms of
archives and only when having the archive handling separately this
remains maintainable.
** shdrs in read-only files
When reading (ELF_C_READ*) then there is no need to malloc Shdr
structure in elfXX_getshdr if file is mmaped and unaligned access
is allowed or the structure is aligned. Use ELF_F_MALLOCED flag
to differentiate.
** shdrs after elf_cntl (ELF_C_FDREAD)
Similar to the above. After ELF_C_FDREAD the file is completely
in memory. See also this mailing list thread:
https://fedorahosted.org/pipermail/elfutils-devel/2012-July/002368.html
* libdw
** More memory access checks needed
All accesses to the debug sections should make sure the offsets are
valid. This is currently especially a problem with leb128 accesses.
** Low level macro information operations
in 5.11.3 are not implemented. gcc currently does not emit this
information so I cannot test it.
** Rename dwarf_getabbrev
* libcpu
** x86
*** Opcodes
crc32
extractps
pextrb
pextrd/pextrq
pextrw
pinsrq
popcnt 64-bit reg
* nm:
** add demangler support
Use demangler from libiberty.
** add support to read debugging symbols
Implement -l option for BSD and POSIX format
* strip:
** support SHT_SYMTAB_SHNDX
should be removed if not needed anymore
* ld:
** sanity check .rel sh_info content
the sh_info of all .rel sections with the same name must point to
sections which also have the same name
** use ld.so.conf
to locate shared libraries also use /etc/ld.so.conf
** handle object files for different architectures
ld.so is expected to ignore object files for different architectures and
continue looking for a matching file (e.g., ignore 32-bit binaries on
64-bit platforms and vice versa). We probably need the same in ld.
** reuse after elf_end
Some files are closed using elf_end. They are removed from memory only
if no reference is left (especially for archives this is a problem).
The old mapping should be reused in that case. The problem is worse
for files which are not mapped read-only (archives again).
** size for STT_SECTION entries
The STT_SECTION entries have zero for the size but can easily get
the size of the section.
** .eh_frame_hdr
Not implemented at all in the moment except for recognition of the option
itself.
** variables with aliases in executables
When linking an executable with a references against a variable in a
DSO, create symbol table entries for all the aliases of the variable
in the DSO and create a relocation for one of them (a non-weak
definition)
* elflint
** additional checks
1st GOT entry == _DYNAMIC
check versioning info:
always BASE in verdef
sh_size/sh_entsize matches last offset != 0
check whether any relocation is for a merge-able section
check TLS relocation depencies
Check content of .eh_frame_hdr, .eh_frame, .gcc_except_table
*** for x86
check that R_386_TLS_GD is followed by R_386_PLT32 for __tls_get_addr
** relax
prelink generated files
* elfcmp
** treat relocation sections special
Differences in the relocation sections can be ignored if all
the same symbols with the same targets are present and the order
of overlapping relocations doesn't change. There really never
should be overlapping relocations but who knows.
* mcs
Sun has it. Can modify sections which are not in segments.
-a string
Append string to the comment section of the ELF object
files. If string contains embedded blanks, it must be
enclosed in quotation marks.
-c Compress the contents of the comment section of the
ELF object files. All duplicate entries are removed.
The ordering of the remaining entries is not dis-
turbed.
-d Delete the contents of the comment section from the
ELF object files. The section header for the comment
section is also removed.
-n name
Specify the name of the comment section to access if
other than .comment. By default, mcs deals with the
section named .comment. This option can be used to
specify another section. mcs can take multiple -n
options to allow for specification of multiple sec-
tion comments.
-p Print the contents of the comment section on the stan-
dard output. Each section printed is tagged by the
name of the file from which it was extracted, using
the format file[member_name]: for archive files and
file: for other files.
-V Print on standard error the version number of mcs.
Local Variables:
eval:(hide-sublevels 3)
End:

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## Process this file with automake to create Makefile.in
##
## Copyright (C) 2000-2010, 2013, 2014 Red Hat, Inc.
## Copyright (C) 2012 Tilera Corporation
## This file is part of elfutils.
##
## This file is free software; you can redistribute it and/or modify
## it under the terms of either
##
## * the GNU Lesser General Public License as published by the Free
## Software Foundation; either version 3 of the License, or (at
## your option) any later version
##
## or
##
## * the GNU General Public License as published by the Free
## Software Foundation; either version 2 of the License, or (at
## your option) any later version
##
## or both in parallel, as here.
##
## elfutils is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received copies of the GNU General Public License and
## the GNU Lesser General Public License along with this program. If
## not, see <http://www.gnu.org/licenses/>.
include $(top_srcdir)/config/eu.am
AM_CPPFLAGS += -I$(top_srcdir)/libebl -I$(top_srcdir)/libasm \
-I$(top_srcdir)/libelf -I$(top_srcdir)/libdw
modules = i386 sh x86_64 ia64 alpha arm aarch64 sparc ppc ppc64 s390 \
tilegx m68k bpf
libebl_pic = libebl_i386_pic.a libebl_sh_pic.a libebl_x86_64_pic.a \
libebl_ia64_pic.a libebl_alpha_pic.a libebl_arm_pic.a \
libebl_aarch64_pic.a libebl_sparc_pic.a libebl_ppc_pic.a \
libebl_ppc64_pic.a libebl_s390_pic.a libebl_tilegx_pic.a \
libebl_m68k_pic.a libebl_bpf_pic.a
noinst_LIBRARIES = $(libebl_pic)
noinst_DATA = $(libebl_pic:_pic.a=.so)
libelf = ../libelf/libelf.so
libdw = ../libdw/libdw.so
libeu = ../lib/libeu.a
i386_SRCS = i386_init.c i386_symbol.c i386_corenote.c i386_cfi.c \
i386_retval.c i386_regs.c i386_auxv.c i386_syscall.c \
i386_initreg.c i386_unwind.c
cpu_i386 = ../libcpu/libcpu_i386.a
libebl_i386_pic_a_SOURCES = $(i386_SRCS)
am_libebl_i386_pic_a_OBJECTS = $(i386_SRCS:.c=.os)
sh_SRCS = sh_init.c sh_symbol.c sh_corenote.c sh_regs.c sh_retval.c
libebl_sh_pic_a_SOURCES = $(sh_SRCS)
am_libebl_sh_pic_a_OBJECTS = $(sh_SRCS:.c=.os)
x86_64_SRCS = x86_64_init.c x86_64_symbol.c x86_64_corenote.c x86_64_cfi.c \
x86_64_retval.c x86_64_regs.c i386_auxv.c x86_64_syscall.c \
x86_64_initreg.c x86_64_unwind.c x32_corenote.c
cpu_x86_64 = ../libcpu/libcpu_x86_64.a
libebl_x86_64_pic_a_SOURCES = $(x86_64_SRCS)
am_libebl_x86_64_pic_a_OBJECTS = $(x86_64_SRCS:.c=.os)
ia64_SRCS = ia64_init.c ia64_symbol.c ia64_regs.c ia64_retval.c
libebl_ia64_pic_a_SOURCES = $(ia64_SRCS)
am_libebl_ia64_pic_a_OBJECTS = $(ia64_SRCS:.c=.os)
alpha_SRCS = alpha_init.c alpha_symbol.c alpha_retval.c alpha_regs.c \
alpha_corenote.c alpha_auxv.c
libebl_alpha_pic_a_SOURCES = $(alpha_SRCS)
am_libebl_alpha_pic_a_OBJECTS = $(alpha_SRCS:.c=.os)
arm_SRCS = arm_init.c arm_symbol.c arm_regs.c arm_corenote.c \
arm_auxv.c arm_attrs.c arm_retval.c arm_cfi.c arm_initreg.c
libebl_arm_pic_a_SOURCES = $(arm_SRCS)
am_libebl_arm_pic_a_OBJECTS = $(arm_SRCS:.c=.os)
aarch64_SRCS = aarch64_init.c aarch64_regs.c aarch64_symbol.c \
aarch64_corenote.c aarch64_retval.c aarch64_cfi.c \
aarch64_initreg.c aarch64_unwind.c
libebl_aarch64_pic_a_SOURCES = $(aarch64_SRCS)
am_libebl_aarch64_pic_a_OBJECTS = $(aarch64_SRCS:.c=.os)
sparc_SRCS = sparc_init.c sparc_symbol.c sparc_regs.c sparc_retval.c \
sparc_corenote.c sparc64_corenote.c sparc_auxv.c sparc_attrs.c \
sparc_cfi.c sparc_initreg.c
libebl_sparc_pic_a_SOURCES = $(sparc_SRCS)
am_libebl_sparc_pic_a_OBJECTS = $(sparc_SRCS:.c=.os)
ppc_SRCS = ppc_init.c ppc_symbol.c ppc_retval.c ppc_regs.c \
ppc_corenote.c ppc_auxv.c ppc_attrs.c ppc_syscall.c \
ppc_cfi.c ppc_initreg.c
libebl_ppc_pic_a_SOURCES = $(ppc_SRCS)
am_libebl_ppc_pic_a_OBJECTS = $(ppc_SRCS:.c=.os)
ppc64_SRCS = ppc64_init.c ppc64_symbol.c ppc64_retval.c \
ppc64_corenote.c ppc_regs.c ppc_auxv.c ppc_attrs.c ppc_syscall.c \
ppc_cfi.c ppc_initreg.c ppc64_unwind.c ppc64_resolve_sym.c
libebl_ppc64_pic_a_SOURCES = $(ppc64_SRCS)
am_libebl_ppc64_pic_a_OBJECTS = $(ppc64_SRCS:.c=.os)
s390_SRCS = s390_init.c s390_symbol.c s390_regs.c s390_retval.c \
s390_corenote.c s390x_corenote.c s390_cfi.c s390_initreg.c \
s390_unwind.c
libebl_s390_pic_a_SOURCES = $(s390_SRCS)
am_libebl_s390_pic_a_OBJECTS = $(s390_SRCS:.c=.os)
tilegx_SRCS = tilegx_init.c tilegx_symbol.c tilegx_regs.c \
tilegx_retval.c tilegx_corenote.c
libebl_tilegx_pic_a_SOURCES = $(tilegx_SRCS)
am_libebl_tilegx_pic_a_OBJECTS = $(tilegx_SRCS:.c=.os)
m68k_SRCS = m68k_init.c m68k_symbol.c m68k_regs.c \
m68k_retval.c m68k_corenote.c
libebl_m68k_pic_a_SOURCES = $(m68k_SRCS)
am_libebl_m68k_pic_a_OBJECTS = $(m68k_SRCS:.c=.os)
bpf_SRCS = bpf_init.c bpf_regs.c
cpu_bpf = ../libcpu/libcpu_bpf.a
libebl_bpf_pic_a_SOURCES = $(bpf_SRCS)
am_libebl_bpf_pic_a_OBJECTS = $(bpf_SRCS:.c=.os)
libebl_%.so libebl_%.map: libebl_%_pic.a $(libelf) $(libdw) $(libeu)
@rm -f $(@:.so=.map)
$(AM_V_at)echo 'ELFUTILS_$(PACKAGE_VERSION) { global: $*_init; local: *; };' \
> $(@:.so=.map)
$(AM_V_CCLD)$(LINK) -shared -o $(@:.map=.so) \
-Wl,--whole-archive $< $(cpu_$*) -Wl,--no-whole-archive \
-Wl,--version-script,$(@:.so=.map),--no-undefined \
-Wl,-z,defs,-z,relro -Wl,--as-needed $(libelf) $(libdw) $(libeu)
@$(textrel_check)
libebl_i386.so: $(cpu_i386)
libebl_x86_64.so: $(cpu_x86_64)
libebl_bpf.so: $(cpu_bpf)
install: install-am install-ebl-modules
install-ebl-modules:
$(mkinstalldirs) $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)
for m in $(modules); do \
$(INSTALL_PROGRAM) libebl_$${m}.so $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)/libebl_$${m}-$(PACKAGE_VERSION).so; \
ln -fs libebl_$${m}-$(PACKAGE_VERSION).so $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)/libebl_$${m}.so; \
done
uninstall: uninstall-am
for m in $(modules); do \
rm -f $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)/libebl_$${m}-$(PACKAGE_VERSION).so; \
rm -f $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)/libebl_$${m}.so; \
done
rmdir --ignore-fail-on-non-empty $(DESTDIR)$(libdir)/$(LIBEBL_SUBDIR)
noinst_HEADERS = libebl_CPU.h common-reloc.c linux-core-note.c x86_corenote.c
EXTRA_DIST = $(foreach m,$(modules),$($(m)_SRCS)) $(modules:=_reloc.def)
CLEANFILES += $(foreach m,$(modules),\
libebl_$(m).map libebl_$(m).so \
$(am_libebl_$(m)_pic_a_OBJECTS))

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/* arm ABI-specified defaults for DWARF CFI.
Copyright (C) 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <dwarf.h>
#define BACKEND aarch64_
#include "libebl_CPU.h"
/* ABI-specified state of DWARF CFI based on:
"DWARF for the ARM 64 bit architecture (AArch64) 1.0"
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0057b/IHI0057B_aadwarf64.pdf
"Procedure Call Standard for the ARM 64 bit Architecture 1.0"
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055b/IHI0055B_aapcs64.pdf
*/
int
aarch64_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
{
static const uint8_t abi_cfi[] =
{
/* The initial Canonical Frame Address is the value of the
Stack Pointer (r31) as setup in the previous frame. */
DW_CFA_def_cfa, ULEB128_7 (30), ULEB128_7 (0),
#define SV(n) DW_CFA_same_value, ULEB128_7 (n)
/* Callee-saved regs r19-r28. */
SV (19), SV (20), SV (21), SV (22), SV (23),
SV (24), SV (25), SV (26), SV (27), SV (28),
/* The Frame Pointer (FP, r29) and Link Register (LR, r30). */
SV (29), SV (30),
/* Callee-saved fpregs v8-v15. v0 == 64. */
SV (72), SV (73), SV (74), SV (75),
SV (76), SV (77), SV (78), SV (79),
#undef SV
/* XXX Note: registers intentionally unused by the program,
for example as a consequence of the procedure call standard
should be initialized as if by DW_CFA_same_value. */
};
abi_info->initial_instructions = abi_cfi;
abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
abi_info->data_alignment_factor = -4;
abi_info->return_address_register = 30; /* lr. */
return 0;
}

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/* AArch64 specific core note handling.
Copyright (C) 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <inttypes.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/time.h>
#define BACKEND aarch64_
#include "libebl_CPU.h"
#define ULONG uint64_t
#define PID_T int32_t
#define UID_T uint32_t
#define GID_T uint32_t
#define ALIGN_ULONG 8
#define ALIGN_PID_T 4
#define ALIGN_UID_T 4
#define ALIGN_GID_T 4
#define TYPE_ULONG ELF_T_XWORD
#define TYPE_PID_T ELF_T_SWORD
#define TYPE_UID_T ELF_T_WORD
#define TYPE_GID_T ELF_T_WORD
#define PRSTATUS_REGS_SIZE (34 * 8)
static const Ebl_Register_Location prstatus_regs[] =
{
{ .offset = 0, .regno = 0, .count = 32, .bits = 64 }, /* x0..x30, sp */
};
#define PRSTATUS_REGSET_ITEMS \
{ \
.name = "pc", .type = ELF_T_XWORD, .format = 'x', \
.offset = (offsetof (struct EBLHOOK(prstatus), pr_reg) \
+ PRSTATUS_REGS_SIZE - 16), \
.group = "register", \
.pc_register = true \
}, \
{ \
.name = "pstate", .type = ELF_T_XWORD, .format = 'x', \
.offset = (offsetof (struct EBLHOOK(prstatus), pr_reg) \
+ PRSTATUS_REGS_SIZE - 8), \
.group = "register" \
}
static const Ebl_Register_Location aarch64_fpregset_regs[] =
{
{ .offset = 0, .regno = 64, .count = 32, .bits = 128 }, /* v0..v31 */
};
static const Ebl_Core_Item aarch64_fpregset_items[] =
{
{
.name = "fpsr", .type = ELF_T_WORD, .format = 'x',
.offset = 512, .group = "register"
},
{
.name = "fpcr", .type = ELF_T_WORD, .format = 'x',
.offset = 516, .group = "register"
}
};
static const Ebl_Core_Item aarch64_tls_items[] =
{
{
.name = "tls", .type = ELF_T_XWORD, .format = 'x',
.offset = 0, .group = "register"
}
};
static const Ebl_Core_Item aarch64_syscall_items [] =
{
{
.name = "syscall", .type = ELF_T_WORD, .format = 'x',
.offset = 0, .group = "register"
}
};
#define AARCH64_HWBP_REG(KIND, N) \
{ \
.name = "DBG" KIND "VR" #N "_EL1", .type = ELF_T_XWORD, .format = 'x', \
.offset = 8 + N * 16, .group = "register" \
}, \
{ \
.name = "DBG" KIND "CR" #N "_EL1", .type = ELF_T_WORD, .format = 'x', \
.offset = 16 + N * 16, .group = "register" \
}
#define AARCH64_BP_WP_GROUP(KIND, NAME) \
static const Ebl_Core_Item NAME[] = \
{ \
{ \
.name = "dbg_info", .type = ELF_T_WORD, .format = 'x', \
.offset = 0, .group = "control" \
}, \
/* N.B.: 4 bytes of padding here. */ \
\
AARCH64_HWBP_REG(KIND, 0), \
AARCH64_HWBP_REG(KIND, 1), \
AARCH64_HWBP_REG(KIND, 2), \
AARCH64_HWBP_REG(KIND, 3), \
AARCH64_HWBP_REG(KIND, 4), \
AARCH64_HWBP_REG(KIND, 5), \
AARCH64_HWBP_REG(KIND, 6), \
AARCH64_HWBP_REG(KIND, 7), \
AARCH64_HWBP_REG(KIND, 8), \
AARCH64_HWBP_REG(KIND, 9), \
AARCH64_HWBP_REG(KIND, 10), \
AARCH64_HWBP_REG(KIND, 11), \
AARCH64_HWBP_REG(KIND, 12), \
AARCH64_HWBP_REG(KIND, 13), \
AARCH64_HWBP_REG(KIND, 14), \
AARCH64_HWBP_REG(KIND, 15), \
\
/* The DBGBVR+DBGBCR pair only takes 12 bytes. There are 4 bytes \
of padding at the end of each pair. The item formatter in \
readelf can skip those, but the missing 4 bytes at the end of \
the whole block cause it to assume the whole item bunch \
repeats, so it loops around to read more. Insert an explicit \
(but invisible) padding word. */ \
{ \
.name = "", .type = ELF_T_WORD, .format = 'h', \
.offset = 260, .group = "register" \
} \
}
AARCH64_BP_WP_GROUP ("B", aarch64_hw_bp_items);
AARCH64_BP_WP_GROUP ("W", aarch64_hw_wp_items);
#undef AARCH64_BP_WP_GROUP
#undef AARCH64_HWBP_REG
#define EXTRA_NOTES \
EXTRA_REGSET_ITEMS (NT_FPREGSET, 528, \
aarch64_fpregset_regs, aarch64_fpregset_items) \
EXTRA_ITEMS (NT_ARM_TLS, 8, aarch64_tls_items) \
EXTRA_ITEMS (NT_ARM_HW_BREAK, 264, aarch64_hw_bp_items) \
EXTRA_ITEMS (NT_ARM_HW_WATCH, 264, aarch64_hw_wp_items) \
EXTRA_ITEMS (NT_ARM_SYSTEM_CALL, 4, aarch64_syscall_items)
#include "linux-core-note.c"

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/* Initialization of AArch64 specific backend library.
Copyright (C) 2013, 2017 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND aarch64_
#define RELOC_PREFIX R_AARCH64_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on aarch64_reloc.def. */
#include "common-reloc.c"
const char *
aarch64_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "AARCH64";
aarch64_init_reloc (eh);
HOOK (eh, register_info);
HOOK (eh, core_note);
HOOK (eh, reloc_simple_type);
HOOK (eh, return_value_location);
HOOK (eh, check_special_symbol);
HOOK (eh, data_marker_symbol);
HOOK (eh, abi_cfi);
/* X0-X30 (31 regs) + SP + 1 Reserved + ELR, 30 Reserved regs (34-43)
+ V0-V31 (32 regs, least significant 64 bits only)
+ ALT_FRAME_RETURN_COLUMN (used when LR isn't used) = 97 DWARF regs. */
eh->frame_nregs = 97;
HOOK (eh, set_initial_registers_tid);
HOOK (eh, unwind);
return MODVERSION;
}

92
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/* Fetch live process registers from TID.
Copyright (C) 2013, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "system.h"
#include <assert.h>
#if defined(__aarch64__) && defined(__linux__)
# include <linux/uio.h>
# include <sys/user.h>
# include <sys/ptrace.h>
/* Deal with old glibc defining user_pt_regs instead of user_regs_struct. */
# ifndef HAVE_SYS_USER_REGS
# define user_regs_struct user_pt_regs
# define user_fpsimd_struct user_fpsimd_state
# endif
#endif
#define BACKEND aarch64_
#include "libebl_CPU.h"
bool
aarch64_set_initial_registers_tid (pid_t tid __attribute__ ((unused)),
ebl_tid_registers_t *setfunc __attribute__ ((unused)),
void *arg __attribute__ ((unused)))
{
#if !defined(__aarch64__) || !defined(__linux__)
return false;
#else /* __aarch64__ */
/* General registers. */
struct user_regs_struct gregs;
struct iovec iovec;
iovec.iov_base = &gregs;
iovec.iov_len = sizeof (gregs);
if (ptrace (PTRACE_GETREGSET, tid, NT_PRSTATUS, &iovec) != 0)
return false;
/* X0..X30 plus SP. */
if (! setfunc (0, 32, (Dwarf_Word *) &gregs.regs[0], arg))
return false;
/* PC. */
if (! setfunc (-1, 1, (Dwarf_Word *) &gregs.pc, arg))
return false;
/* ELR cannot be found. */
/* FP registers (only 64bits are used). */
struct user_fpsimd_struct fregs;
iovec.iov_base = &fregs;
iovec.iov_len = sizeof (fregs);
if (ptrace (PTRACE_GETREGSET, tid, NT_FPREGSET, &iovec) != 0)
return false;
Dwarf_Word dwarf_fregs[32];
for (int r = 0; r < 32; r++)
dwarf_fregs[r] = fregs.vregs[r] & 0xFFFFFFFF;
if (! setfunc (64, 32, dwarf_fregs, arg))
return false;
return true;
#endif /* __aarch64__ */
}

108
elfutils/backends/aarch64_regs.c Normal file
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/* Register names and numbers for AArch64 DWARF.
Copyright (C) 2013, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <dwarf.h>
#include <stdarg.h>
#define BACKEND aarch64_
#include "libebl_CPU.h"
__attribute__ ((format (printf, 7, 8)))
static ssize_t
do_regtype (const char *setname, int type,
const char **setnamep, int *typep,
char *name, size_t namelen, const char *fmt, ...)
{
*setnamep = setname;
*typep = type;
va_list ap;
va_start (ap, fmt);
int s = vsnprintf (name, namelen, fmt, ap);
va_end(ap);
if (s < 0 || (unsigned) s >= namelen)
return -1;
return s + 1;
}
ssize_t
aarch64_register_info (Ebl *ebl __attribute__ ((unused)),
int regno, char *name, size_t namelen,
const char **prefix, const char **setnamep,
int *bits, int *typep)
{
if (name == NULL)
return 128;
*prefix = "";
*bits = 64;
#define regtype(setname, type, ...) \
do_regtype(setname, type, setnamep, typep, name, namelen, __VA_ARGS__)
switch (regno)
{
case 0 ... 30:
return regtype ("integer", DW_ATE_signed, "x%d", regno);
case 31:
return regtype ("integer", DW_ATE_address, "sp");
case 32:
return 0;
case 33:
return regtype ("integer", DW_ATE_address, "elr");
case 34 ... 63:
return 0;
case 64 ... 95:
/* FP/SIMD register file supports a variety of data types--it
can be thought of as a register holding a single integer or
floating-point value, or a vector of 8-, 16-, 32- or 64-bit
integers. 128-bit quad-word is the only singular value that
covers the whole register, so mark the register thus. */
*bits = 128;
return regtype ("FP/SIMD", DW_ATE_unsigned, "v%d", regno - 64);
case 96 ... 127:
return 0;
default:
return -1;
}
}

157
elfutils/backends/aarch64_reloc.def Normal file
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/* List the relocation types for AArch64. -*- C -*-
Copyright (C) 2013, 2014, 2015 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (ABS64, REL|EXEC|DYN)
RELOC_TYPE (ABS32, REL|EXEC|DYN)
RELOC_TYPE (COPY, EXEC|DYN)
RELOC_TYPE (GLOB_DAT, EXEC|DYN)
RELOC_TYPE (JUMP_SLOT, EXEC|DYN)
RELOC_TYPE (RELATIVE, EXEC|DYN)
RELOC_TYPE (TLS_DTPMOD, EXEC|DYN)
RELOC_TYPE (TLS_DTPREL, EXEC|DYN)
RELOC_TYPE (TLS_TPREL, EXEC|DYN)
RELOC_TYPE (TLSDESC, EXEC|DYN)
/* R_AARCH64_NONE records that the section containing the place to be
relocated depends on the section defining the symbol mentioned in
the relocation directive[.] (ARM IHI 0056B). */
RELOC_TYPE (NONE, REL)
RELOC_TYPE (ABS16, REL)
RELOC_TYPE (PREL64, REL)
RELOC_TYPE (PREL32, REL)
RELOC_TYPE (PREL16, REL)
RELOC_TYPE (MOVW_UABS_G0, REL)
RELOC_TYPE (MOVW_UABS_G0_NC, REL)
RELOC_TYPE (MOVW_UABS_G1, REL)
RELOC_TYPE (MOVW_UABS_G1_NC, REL)
RELOC_TYPE (MOVW_UABS_G2, REL)
RELOC_TYPE (MOVW_UABS_G2_NC, REL)
RELOC_TYPE (MOVW_UABS_G3, REL)
RELOC_TYPE (MOVW_SABS_G0, REL)
RELOC_TYPE (MOVW_SABS_G1, REL)
RELOC_TYPE (MOVW_SABS_G2, REL)
RELOC_TYPE (LD_PREL_LO19, REL)
RELOC_TYPE (ADR_PREL_LO21, REL)
RELOC_TYPE (ADR_PREL_PG_HI21, REL)
RELOC_TYPE (ADR_PREL_PG_HI21_NC, REL)
RELOC_TYPE (ADD_ABS_LO12_NC, REL)
RELOC_TYPE (LDST8_ABS_LO12_NC, REL)
RELOC_TYPE (LDST16_ABS_LO12_NC, REL)
RELOC_TYPE (LDST32_ABS_LO12_NC, REL)
RELOC_TYPE (LDST64_ABS_LO12_NC, REL)
RELOC_TYPE (LDST128_ABS_LO12_NC, REL)
RELOC_TYPE (TSTBR14, REL)
RELOC_TYPE (CONDBR19, REL)
RELOC_TYPE (JUMP26, REL)
RELOC_TYPE (CALL26, REL)
RELOC_TYPE (MOVW_PREL_G0, REL)
RELOC_TYPE (MOVW_PREL_G0_NC, REL)
RELOC_TYPE (MOVW_PREL_G1, REL)
RELOC_TYPE (MOVW_PREL_G1_NC, REL)
RELOC_TYPE (MOVW_PREL_G2, REL)
RELOC_TYPE (MOVW_PREL_G2_NC, REL)
RELOC_TYPE (MOVW_PREL_G3, REL)
RELOC_TYPE (MOVW_GOTOFF_G0, REL)
RELOC_TYPE (MOVW_GOTOFF_G0_NC, REL)
RELOC_TYPE (MOVW_GOTOFF_G1, REL)
RELOC_TYPE (MOVW_GOTOFF_G1_NC, REL)
RELOC_TYPE (MOVW_GOTOFF_G2, REL)
RELOC_TYPE (MOVW_GOTOFF_G2_NC, REL)
RELOC_TYPE (MOVW_GOTOFF_G3, REL)
RELOC_TYPE (GOTREL64, REL)
RELOC_TYPE (GOTREL32, REL)
RELOC_TYPE (GOT_LD_PREL19, REL)
RELOC_TYPE (LD64_GOTOFF_LO15, REL)
RELOC_TYPE (ADR_GOT_PAGE, REL)
RELOC_TYPE (LD64_GOT_LO12_NC, REL)
RELOC_TYPE (LD64_GOTPAGE_LO15, REL)
RELOC_TYPE (TLSGD_ADR_PREL21, REL)
RELOC_TYPE (TLSGD_ADR_PAGE21, REL)
RELOC_TYPE (TLSGD_ADD_LO12_NC, REL)
RELOC_TYPE (TLSGD_MOVW_G1, REL)
RELOC_TYPE (TLSGD_MOVW_G0_NC, REL)
RELOC_TYPE (TLSLD_ADR_PREL21, REL)
RELOC_TYPE (TLSLD_ADR_PAGE21, REL)
RELOC_TYPE (TLSLD_ADD_LO12_NC, REL)
RELOC_TYPE (TLSLD_MOVW_G1, REL)
RELOC_TYPE (TLSLD_MOVW_G0_NC, REL)
RELOC_TYPE (TLSLD_LD_PREL19, REL)
RELOC_TYPE (TLSLD_MOVW_DTPREL_G2, REL)
RELOC_TYPE (TLSLD_MOVW_DTPREL_G1, REL)
RELOC_TYPE (TLSLD_MOVW_DTPREL_G1_NC, REL)
RELOC_TYPE (TLSLD_MOVW_DTPREL_G0, REL)
RELOC_TYPE (TLSLD_MOVW_DTPREL_G0_NC, REL)
RELOC_TYPE (TLSLD_ADD_DTPREL_HI12, REL)
RELOC_TYPE (TLSLD_ADD_DTPREL_LO12, REL)
RELOC_TYPE (TLSLD_ADD_DTPREL_LO12_NC, REL)
RELOC_TYPE (TLSLD_LDST8_DTPREL_LO12, REL)
RELOC_TYPE (TLSLD_LDST8_DTPREL_LO12_NC, REL)
RELOC_TYPE (TLSLD_LDST16_DTPREL_LO12, REL)
RELOC_TYPE (TLSLD_LDST16_DTPREL_LO12_NC, REL)
RELOC_TYPE (TLSLD_LDST32_DTPREL_LO12, REL)
RELOC_TYPE (TLSLD_LDST32_DTPREL_LO12_NC, REL)
RELOC_TYPE (TLSLD_LDST64_DTPREL_LO12, REL)
RELOC_TYPE (TLSLD_LDST64_DTPREL_LO12_NC, REL)
RELOC_TYPE (TLSLD_LDST128_DTPREL_LO12, REL)
RELOC_TYPE (TLSLD_LDST128_DTPREL_LO12_NC, REL)
RELOC_TYPE (TLSIE_MOVW_GOTTPREL_G1, REL)
RELOC_TYPE (TLSIE_MOVW_GOTTPREL_G0_NC, REL)
RELOC_TYPE (TLSIE_ADR_GOTTPREL_PAGE21, REL)
RELOC_TYPE (TLSIE_LD64_GOTTPREL_LO12_NC, REL)
RELOC_TYPE (TLSIE_LD_GOTTPREL_PREL19, REL)
RELOC_TYPE (TLSLE_MOVW_TPREL_G2, REL)
RELOC_TYPE (TLSLE_MOVW_TPREL_G1, REL)
RELOC_TYPE (TLSLE_MOVW_TPREL_G1_NC, REL)
RELOC_TYPE (TLSLE_MOVW_TPREL_G0, REL)
RELOC_TYPE (TLSLE_MOVW_TPREL_G0_NC, REL)
RELOC_TYPE (TLSLE_ADD_TPREL_HI12, REL)
RELOC_TYPE (TLSLE_ADD_TPREL_LO12, REL)
RELOC_TYPE (TLSLE_ADD_TPREL_LO12_NC, REL)
RELOC_TYPE (TLSLE_LDST8_TPREL_LO12, REL)
RELOC_TYPE (TLSLE_LDST8_TPREL_LO12_NC, REL)
RELOC_TYPE (TLSLE_LDST16_TPREL_LO12, REL)
RELOC_TYPE (TLSLE_LDST16_TPREL_LO12_NC, REL)
RELOC_TYPE (TLSLE_LDST32_TPREL_LO12, REL)
RELOC_TYPE (TLSLE_LDST32_TPREL_LO12_NC, REL)
RELOC_TYPE (TLSLE_LDST64_TPREL_LO12, REL)
RELOC_TYPE (TLSLE_LDST64_TPREL_LO12_NC, REL)
RELOC_TYPE (TLSLE_LDST128_TPREL_LO12, REL)
RELOC_TYPE (TLSLE_LDST128_TPREL_LO12_NC, REL)
RELOC_TYPE (TLSDESC_LD_PREL19, REL)
RELOC_TYPE (TLSDESC_ADR_PREL21, REL)
RELOC_TYPE (TLSDESC_ADR_PAGE21, REL)
RELOC_TYPE (TLSDESC_LD64_LO12, REL)
RELOC_TYPE (TLSDESC_ADD_LO12, REL)
RELOC_TYPE (TLSDESC_OFF_G1, REL)
RELOC_TYPE (TLSDESC_OFF_G0_NC, REL)
RELOC_TYPE (TLSDESC_LDR, REL)
RELOC_TYPE (TLSDESC_ADD, REL)
RELOC_TYPE (TLSDESC_CALL, REL)

376
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/* Function return value location for Linux/AArch64 ABI.
Copyright (C) 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <inttypes.h>
#include <assert.h>
#include <dwarf.h>
#define BACKEND aarch64_
#include "libebl_CPU.h"
static int
skip_until (Dwarf_Die *child, int tag)
{
int i;
while (DWARF_TAG_OR_RETURN (child) != tag)
if ((i = dwarf_siblingof (child, child)) != 0)
/* If there are no members, then this is not a HFA. Errors
are propagated. */
return i;
return 0;
}
static int
dwarf_bytesize_aux (Dwarf_Die *die, Dwarf_Word *sizep)
{
int bits;
if (((bits = 8 * dwarf_bytesize (die)) < 0
&& (bits = dwarf_bitsize (die)) < 0)
|| bits % 8 != 0)
return -1;
*sizep = bits / 8;
return 0;
}
/* HFA (Homogeneous Floating-point Aggregate) is an aggregate type
whose members are all of the same floating-point type, which is
then base type of this HFA. Instead of being floating-point types
directly, members can instead themselves be HFA. Such HFA fields
are handled as if their type were HFA base type.
This function returns 0 if TYPEDIE is HFA, 1 if it is not, or -1 if
there were errors. In the former case, *SIZEP contains byte size
of the base type (e.g. 8 for IEEE double). *COUNT is set to the
number of leaf members of the HFA. */
static int hfa_type (Dwarf_Die *ftypedie, int tag,
Dwarf_Word *sizep, Dwarf_Word *countp);
/* Return 0 if MEMBDIE refers to a member with a floating-point or HFA
type, or 1 if it's not. Return -1 for errors. The meaning of the
remaining arguments is as documented at hfa_type. */
static int
member_is_fp (Dwarf_Die *membdie, Dwarf_Word *sizep, Dwarf_Word *countp)
{
Dwarf_Die typedie;
int tag = dwarf_peeled_die_type (membdie, &typedie);
switch (tag)
{
case DW_TAG_base_type:;
Dwarf_Word encoding;
Dwarf_Attribute attr_mem;
if (dwarf_attr_integrate (&typedie, DW_AT_encoding, &attr_mem) == NULL
|| dwarf_formudata (&attr_mem, &encoding) != 0)
return -1;
switch (encoding)
{
case DW_ATE_complex_float:
*countp = 2;
break;
case DW_ATE_float:
*countp = 1;
break;
default:
return 1;
}
if (dwarf_bytesize_aux (&typedie, sizep) < 0)
return -1;
*sizep /= *countp;
return 0;
case DW_TAG_structure_type:
case DW_TAG_union_type:
case DW_TAG_array_type:
return hfa_type (&typedie, tag, sizep, countp);
}
return 1;
}
static int
hfa_type (Dwarf_Die *ftypedie, int tag, Dwarf_Word *sizep, Dwarf_Word *countp)
{
assert (tag == DW_TAG_structure_type || tag == DW_TAG_class_type
|| tag == DW_TAG_union_type || tag == DW_TAG_array_type);
int i;
if (tag == DW_TAG_array_type)
{
Dwarf_Word tot_size;
if (dwarf_aggregate_size (ftypedie, &tot_size) < 0)
return -1;
/* For vector types, we don't care about the underlying
type, but only about the vector type itself. */
bool vec;
Dwarf_Attribute attr_mem;
if (dwarf_formflag (dwarf_attr_integrate (ftypedie, DW_AT_GNU_vector,
&attr_mem), &vec) == 0
&& vec)
{
*sizep = tot_size;
*countp = 1;
return 0;
}
if ((i = member_is_fp (ftypedie, sizep, countp)) == 0)
{
*countp = tot_size / *sizep;
return 0;
}
return i;
}
/* Find first DW_TAG_member and determine its type. */
Dwarf_Die member;
if ((i = dwarf_child (ftypedie, &member) != 0))
return i;
if ((i = skip_until (&member, DW_TAG_member)) != 0)
return i;
*countp = 0;
if ((i = member_is_fp (&member, sizep, countp)) != 0)
return i;
while ((i = dwarf_siblingof (&member, &member)) == 0
&& (i = skip_until (&member, DW_TAG_member)) == 0)
{
Dwarf_Word size, count;
if ((i = member_is_fp (&member, &size, &count)) != 0)
return i;
if (*sizep != size)
return 1;
*countp += count;
}
/* At this point we already have at least one FP member, which means
FTYPEDIE is an HFA. So either return 0, or propagate error. */
return i < 0 ? i : 0;
}
static int
pass_in_gpr (const Dwarf_Op **locp, Dwarf_Word size)
{
static const Dwarf_Op loc[] =
{
{ .atom = DW_OP_reg0 }, { .atom = DW_OP_piece, .number = 8 },
{ .atom = DW_OP_reg1 }, { .atom = DW_OP_piece, .number = 8 }
};
*locp = loc;
return size <= 8 ? 1 : 4;
}
static int
pass_by_ref (const Dwarf_Op **locp)
{
static const Dwarf_Op loc[] = { { .atom = DW_OP_breg0 } };
*locp = loc;
return 1;
}
static int
pass_hfa (const Dwarf_Op **locp, Dwarf_Word size, Dwarf_Word count)
{
assert (count >= 1 && count <= 4);
assert (size == 2 || size == 4 || size == 8 || size == 16);
#define DEFINE_FPREG(NAME, SIZE) \
static const Dwarf_Op NAME[] = { \
{ .atom = DW_OP_regx, .number = 64 }, \
{ .atom = DW_OP_piece, .number = SIZE }, \
{ .atom = DW_OP_regx, .number = 65 }, \
{ .atom = DW_OP_piece, .number = SIZE }, \
{ .atom = DW_OP_regx, .number = 66 }, \
{ .atom = DW_OP_piece, .number = SIZE }, \
{ .atom = DW_OP_regx, .number = 67 }, \
{ .atom = DW_OP_piece, .number = SIZE } \
}
switch (size)
{
case 2:;
DEFINE_FPREG (loc_hfa_2, 2);
*locp = loc_hfa_2;
break;
case 4:;
DEFINE_FPREG (loc_hfa_4, 4);
*locp = loc_hfa_4;
break;
case 8:;
DEFINE_FPREG (loc_hfa_8, 8);
*locp = loc_hfa_8;
break;
case 16:;
DEFINE_FPREG (loc_hfa_16, 16);
*locp = loc_hfa_16;
break;
}
#undef DEFINE_FPREG
return count == 1 ? 1 : 2 * count;
}
static int
pass_in_simd (const Dwarf_Op **locp)
{
/* This is like passing single-element HFA. Size doesn't matter, so
pretend it's for example double. */
return pass_hfa (locp, 8, 1);
}
int
aarch64_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
Dwarf_Die typedie;
int tag = dwarf_peeled_die_type (functypedie, &typedie);
if (tag <= 0)
return tag;
Dwarf_Word size = (Dwarf_Word)-1;
/* If the argument type is a Composite Type that is larger than 16
bytes, then the argument is copied to memory allocated by the
caller and the argument is replaced by a pointer to the copy. */
if (tag == DW_TAG_structure_type || tag == DW_TAG_union_type
|| tag == DW_TAG_class_type || tag == DW_TAG_array_type)
{
Dwarf_Word base_size, count;
switch (hfa_type (&typedie, tag, &base_size, &count))
{
default:
return -1;
case 0:
assert (count > 0);
if (count <= 4)
return pass_hfa (locp, base_size, count);
/* Fall through. */
case 1:
/* Not a HFA. */
if (dwarf_aggregate_size (&typedie, &size) < 0)
return -1;
if (size > 16)
return pass_by_ref (locp);
}
}
if (tag == DW_TAG_base_type
|| tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
{
if (dwarf_bytesize_aux (&typedie, &size) < 0)
{
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
size = 8;
else
return -1;
}
Dwarf_Attribute attr_mem;
if (tag == DW_TAG_base_type)
{
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (&typedie, DW_AT_encoding,
&attr_mem),
&encoding) != 0)
return -1;
switch (encoding)
{
/* If the argument is a Half-, Single-, Double- or Quad-
precision Floating-point [...] the argument is allocated
to the least significant bits of register v[NSRN]. */
case DW_ATE_float:
switch (size)
{
case 2: /* half */
case 4: /* sigle */
case 8: /* double */
case 16: /* quad */
return pass_in_simd (locp);
default:
return -2;
}
case DW_ATE_complex_float:
switch (size)
{
case 8: /* float _Complex */
case 16: /* double _Complex */
case 32: /* long double _Complex */
return pass_hfa (locp, size / 2, 2);
default:
return -2;
}
/* If the argument is an Integral or Pointer Type, the
size of the argument is less than or equal to 8 bytes
[...] the argument is copied to the least significant
bits in x[NGRN]. */
case DW_ATE_boolean:
case DW_ATE_signed:
case DW_ATE_unsigned:
case DW_ATE_unsigned_char:
case DW_ATE_signed_char:
return pass_in_gpr (locp, size);
}
return -2;
}
else
return pass_in_gpr (locp, size);
}
*locp = NULL;
return 0;
}

104
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/* AArch64 specific symbolic name handling.
Copyright (C) 2013, 2015, 2017 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <stddef.h>
#include <string.h>
#define BACKEND aarch64_
#include "libebl_CPU.h"
/* Check for the simple reloc types. */
Elf_Type
aarch64_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
{
switch (type)
{
case R_AARCH64_ABS64:
return ELF_T_XWORD;
case R_AARCH64_ABS32:
return ELF_T_WORD;
case R_AARCH64_ABS16:
return ELF_T_HALF;
default:
return ELF_T_NUM;
}
}
/* If this is the _GLOBAL_OFFSET_TABLE_ symbol, then it should point in
the .got even if there is a .got.plt section.
https://sourceware.org/ml/libc-ports/2013-06/msg00057.html
https://bugzilla.redhat.com/show_bug.cgi?id=1201778
*/
bool
aarch64_check_special_symbol (Elf *elf, GElf_Ehdr *ehdr, const GElf_Sym *sym,
const char *name, const GElf_Shdr *destshdr)
{
if (name != NULL
&& strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
{
const char *sname = elf_strptr (elf, ehdr->e_shstrndx, destshdr->sh_name);
if (sname != NULL
&& (strcmp (sname, ".got") == 0 || strcmp (sname, ".got.plt") == 0))
{
Elf_Scn *scn = NULL;
while ((scn = elf_nextscn (elf, scn)) != NULL)
{
GElf_Shdr shdr_mem;
GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
if (shdr != NULL)
{
sname = elf_strptr (elf, ehdr->e_shstrndx, shdr->sh_name);
if (sname != NULL && strcmp (sname, ".got") == 0)
return (sym->st_value >= shdr->sh_addr
&& sym->st_value < shdr->sh_addr + shdr->sh_size);
}
}
}
}
return false;
}
/* A data mapping symbol is a symbol with "$d" name or "$d.<any...>" name,
STT_NOTYPE, STB_LOCAL and st_size of zero. The indicate the stat of a
sequence of data items. */
bool
aarch64_data_marker_symbol (const GElf_Sym *sym, const char *sname)
{
return (sym != NULL && sname != NULL
&& sym->st_size == 0 && GELF_ST_BIND (sym->st_info) == STB_LOCAL
&& GELF_ST_TYPE (sym->st_info) == STT_NOTYPE
&& (strcmp (sname, "$d") == 0 || strncmp (sname, "$d.", 3) == 0));
}

83
elfutils/backends/aarch64_unwind.c Normal file
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/* Get previous frame state for an existing frame state.
Copyright (C) 2016 The Qt Company Ltd.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND aarch64_
#define FP_REG 29
#define LR_REG 30
#define SP_REG 31
#define FP_OFFSET 0
#define LR_OFFSET 8
#define SP_OFFSET 16
#include "libebl_CPU.h"
/* There was no CFI. Maybe we happen to have a frame pointer and can unwind from that? */
bool
EBLHOOK(unwind) (Ebl *ebl __attribute__ ((unused)), Dwarf_Addr pc __attribute__ ((unused)),
ebl_tid_registers_t *setfunc, ebl_tid_registers_get_t *getfunc,
ebl_pid_memory_read_t *readfunc, void *arg,
bool *signal_framep __attribute__ ((unused)))
{
Dwarf_Word fp, lr, sp;
if (!getfunc(LR_REG, 1, &lr, arg))
return false;
if (lr == 0 || !setfunc(-1, 1, &lr, arg))
return false;
if (!getfunc(FP_REG, 1, &fp, arg))
fp = 0;
if (!getfunc(SP_REG, 1, &sp, arg))
sp = 0;
Dwarf_Word newLr, newFp, newSp;
if (!readfunc(fp + LR_OFFSET, &newLr, arg))
newLr = 0;
if (!readfunc(fp + FP_OFFSET, &newFp, arg))
newFp = 0;
newSp = fp + SP_OFFSET;
// These are not fatal if they don't work. They will just prevent unwinding at the next frame.
setfunc(LR_REG, 1, &newLr, arg);
setfunc(FP_REG, 1, &newFp, arg);
setfunc(SP_REG, 1, &newSp, arg);
// If the fp is invalid, we might still have a valid lr.
// But if the fp is valid, then the stack should be moving in the right direction.
return fp == 0 || newSp > sp;
}

49
elfutils/backends/alpha_auxv.c Normal file
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/* Alpha-specific auxv handling.
Copyright (C) 2008 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND alpha_
#include "libebl_CPU.h"
int
EBLHOOK(auxv_info) (GElf_Xword a_type, const char **name, const char **format)
{
if (a_type != AT_HWCAP)
return 0;
*name = "HWCAP";
*format = "b"
"bwx\0" "fix\0" "cix\0" "0x08\0"
"0x10\0" "0x20\0" "0x40\0" "0x80\0"
"max\0" "precise_trap\0"
"\0";
return 1;
}

70
elfutils/backends/alpha_corenote.c Normal file
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/* PowerPC specific core note handling.
Copyright (C) 2007 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <inttypes.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/time.h>
#define BACKEND alpha_
#include "libebl_CPU.h"
static const Ebl_Register_Location prstatus_regs[] =
{
{ .offset = 0, .regno = 0, .count = 31, .bits = 64 }, /* r0-r30 */
{ .offset = 32 * 8, .regno = 64, .count = 1, .bits = 64 }, /* pc */
{ .offset = 33 * 8, .regno = 66, .count = 1, .bits = 64 }, /* unique */
};
#define PRSTATUS_REGS_SIZE (33 * 8)
static const Ebl_Register_Location fpregset_regs[] =
{
{ .offset = 0, .regno = 32, .count = 32, .bits = 64 }, /* f0-f30, fpcr */
};
#define FPREGSET_SIZE (32 * 8)
#define ULONG uint64_t
#define ALIGN_ULONG 8
#define TYPE_ULONG ELF_T_XWORD
#define TYPE_LONG ELF_T_SXWORD
#define PID_T int32_t
#define UID_T uint32_t
#define GID_T uint32_t
#define ALIGN_PID_T 4
#define ALIGN_UID_T 4
#define ALIGN_GID_T 4
#define TYPE_PID_T ELF_T_SWORD
#define TYPE_UID_T ELF_T_WORD
#define TYPE_GID_T ELF_T_WORD
#include "linux-core-note.c"

69
elfutils/backends/alpha_init.c Normal file
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/* Initialization of Alpha specific backend library.
Copyright (C) 2002-2011 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2002.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND alpha_
#define RELOC_PREFIX R_ALPHA_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on alpha_reloc.def. */
#include "common-reloc.c"
const char *
alpha_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "Alpha";
alpha_init_reloc (eh);
HOOK (eh, dynamic_tag_name);
HOOK (eh, dynamic_tag_check);
HOOK (eh, reloc_simple_type);
HOOK (eh, return_value_location);
HOOK (eh, machine_section_flag_check);
HOOK (eh, check_special_section);
HOOK (eh, check_special_symbol);
HOOK (eh, check_st_other_bits);
HOOK (eh, register_info);
HOOK (eh, core_note);
HOOK (eh, auxv_info);
eh->sysvhash_entrysize = sizeof (Elf64_Xword);
return MODVERSION;
}

164
elfutils/backends/alpha_regs.c Normal file
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/* Register names and numbers for Alpha DWARF.
Copyright (C) 2007 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <dwarf.h>
#define BACKEND alpha_
#include "libebl_CPU.h"
ssize_t
alpha_register_info (Ebl *ebl __attribute__ ((unused)),
int regno, char *name, size_t namelen,
const char **prefix, const char **setname,
int *bits, int *type)
{
if (name == NULL)
return 67;
if (regno < 0 || regno > 66 || namelen < 7)
return -1;
*prefix = "$";
*bits = 64;
*type = DW_ATE_signed;
*setname = "integer";
if (regno >= 32 && regno < 64)
{
*setname = "FPU";
*type = DW_ATE_float;
}
switch (regno)
{
case 0:
name[0] = 'v';
name[1] = '0';
namelen = 2;
break;
case 1 ... 8:
name[0] = 't';
name[1] = regno - 1 + '0';
namelen = 2;
break;
case 9 ... 15:
name[0] = 's';
name[1] = regno - 9 + '0';
namelen = 2;
break;
case 16 ... 21:
name[0] = 'a';
name[1] = regno - 16 + '0';
namelen = 2;
break;
case 22 ... 23:
name[0] = 't';
name[1] = regno - 22 + '8';
namelen = 2;
break;
case 24 ... 25:
name[0] = 't';
name[1] = '1';
name[2] = regno - 24 + '0';
namelen = 3;
break;
case 26:
*type = DW_ATE_address;
return stpcpy (name, "ra") + 1 - name;
case 27:
return stpcpy (name, "t12") + 1 - name;
case 28:
return stpcpy (name, "at") + 1 - name;
case 29:
*type = DW_ATE_address;
return stpcpy (name, "gp") + 1 - name;
case 30:
*type = DW_ATE_address;
return stpcpy (name, "sp") + 1 - name;
case 31:
return stpcpy (name, "zero") + 1 - name;
case 32 ... 32 + 9:
name[0] = 'f';
name[1] = regno - 32 + '0';
namelen = 2;
break;
case 32 + 10 ... 32 + 19:
name[0] = 'f';
name[1] = '1';
name[2] = regno - 32 - 10 + '0';
namelen = 3;
break;
case 32 + 20 ... 32 + 29:
name[0] = 'f';
name[1] = '2';
name[2] = regno - 32 - 20 + '0';
namelen = 3;
break;
case 32 + 30:
return stpcpy (name, "f30") + 1 - name;
case 32 + 31:
*type = DW_ATE_unsigned;
return stpcpy (name, "fpcr") + 1 - name;
case 64:
*type = DW_ATE_address;
return stpcpy (name, "pc") + 1 - name;
case 66:
*type = DW_ATE_address;
return stpcpy (name, "unique") + 1 - name;
default:
*setname = NULL;
return 0;
}
name[namelen++] = '\0';
return namelen;
}

63
elfutils/backends/alpha_reloc.def Normal file
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/* List the relocation types for alpha. -*- C -*-
Copyright (C) 2005 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (NONE, 0)
RELOC_TYPE (REFLONG, REL|EXEC|DYN)
RELOC_TYPE (REFQUAD, REL|EXEC|DYN)
RELOC_TYPE (GPREL32, REL)
RELOC_TYPE (LITERAL, REL)
RELOC_TYPE (LITUSE, REL)
RELOC_TYPE (GPDISP, REL)
RELOC_TYPE (BRADDR, REL)
RELOC_TYPE (HINT, REL)
RELOC_TYPE (SREL16, REL)
RELOC_TYPE (SREL32, REL)
RELOC_TYPE (SREL64, REL)
RELOC_TYPE (GPRELHIGH, REL)
RELOC_TYPE (GPRELLOW, REL)
RELOC_TYPE (GPREL16, REL)
RELOC_TYPE (COPY, 0)
RELOC_TYPE (GLOB_DAT, EXEC|DYN)
RELOC_TYPE (JMP_SLOT, EXEC|DYN)
RELOC_TYPE (RELATIVE, EXEC|DYN)
RELOC_TYPE (TLS_GD_HI, REL)
RELOC_TYPE (TLSGD, REL)
RELOC_TYPE (TLS_LDM, REL)
RELOC_TYPE (DTPMOD64, REL|EXEC|DYN)
RELOC_TYPE (GOTDTPREL, REL)
RELOC_TYPE (DTPREL64, REL|EXEC|DYN)
RELOC_TYPE (DTPRELHI, REL)
RELOC_TYPE (DTPRELLO, REL)
RELOC_TYPE (DTPREL16, REL)
RELOC_TYPE (GOTTPREL, REL)
RELOC_TYPE (TPREL64, REL|EXEC|DYN)
RELOC_TYPE (TPRELHI, REL)
RELOC_TYPE (TPRELLO, REL)
RELOC_TYPE (TPREL16, REL)

150
elfutils/backends/alpha_retval.c Normal file
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/* Function return value location for Alpha ELF ABI.
Copyright (C) 2005, 2007, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <dwarf.h>
#define BACKEND alpha_
#include "libebl_CPU.h"
/* $0. */
static const Dwarf_Op loc_intreg[] =
{
{ .atom = DW_OP_reg0 }
};
#define nloc_intreg 1
/* $f0, or pair $f0, $f1. */
static const Dwarf_Op loc_fpreg[] =
{
{ .atom = DW_OP_regx, .number = 32 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_regx, .number = 33 }, { .atom = DW_OP_piece, .number = 4 },
};
#define nloc_fpreg 1
#define nloc_fpregpair 4
/* The return value is a structure and is actually stored in stack space
passed in a hidden argument by the caller. But, the compiler
helpfully returns the address of that space in $0. */
static const Dwarf_Op loc_aggregate[] =
{
{ .atom = DW_OP_breg0, .number = 0 }
};
#define nloc_aggregate 1
int
alpha_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
Dwarf_Die die_mem, *typedie = &die_mem;
int tag = dwarf_peeled_die_type (functypedie, typedie);
if (tag <= 0)
return tag;
switch (tag)
{
case -1:
return -1;
case DW_TAG_subrange_type:
if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
{
Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
/* Fall through. */
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
{
Dwarf_Attribute attr_mem;
Dwarf_Word size;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
&attr_mem), &size) != 0)
{
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
size = 8;
else
return -1;
}
if (tag == DW_TAG_base_type)
{
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
&attr_mem),
&encoding) != 0)
return -1;
*locp = loc_fpreg;
if (encoding == DW_ATE_float)
{
if (size <= 8)
return nloc_fpreg;
goto aggregate;
}
if (encoding == DW_ATE_complex_float)
{
if (size <= 8 * 2)
return nloc_fpregpair;
goto aggregate;
}
}
if (size <= 8)
{
*locp = loc_intreg;
return nloc_intreg;
}
}
/* Else fall through. */
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
case DW_TAG_string_type:
case DW_TAG_array_type:
aggregate:
*locp = loc_aggregate;
return nloc_aggregate;
}
/* XXX We don't have a good way to return specific errors from ebl calls.
This value means we do not understand the type, but it is well-formed
DWARF and might be valid. */
return -2;
}

156
elfutils/backends/alpha_symbol.c Normal file
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/* Alpha specific symbolic name handling.
Copyright (C) 2002-2011 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2002.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <stddef.h>
#include <string.h>
#define BACKEND alpha_
#include "libebl_CPU.h"
const char *
alpha_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
switch (tag)
{
case DT_ALPHA_PLTRO:
return "ALPHA_PLTRO";
default:
break;
}
return NULL;
}
bool
alpha_dynamic_tag_check (int64_t tag)
{
return tag == DT_ALPHA_PLTRO;
}
/* Check for the simple reloc types. */
Elf_Type
alpha_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
{
switch (type)
{
case R_ALPHA_REFLONG:
return ELF_T_WORD;
case R_ALPHA_REFQUAD:
return ELF_T_XWORD;
default:
return ELF_T_NUM;
}
}
/* Check whether SHF_MASKPROC flags are valid. */
bool
alpha_machine_section_flag_check (GElf_Xword sh_flags)
{
return (sh_flags &~ (SHF_ALPHA_GPREL)) == 0;
}
bool
alpha_check_special_section (Ebl *ebl,
int ndx __attribute__ ((unused)),
const GElf_Shdr *shdr,
const char *sname __attribute__ ((unused)))
{
if ((shdr->sh_flags
& (SHF_WRITE | SHF_EXECINSTR)) == (SHF_WRITE | SHF_EXECINSTR)
&& shdr->sh_addr != 0)
{
/* This is ordinarily flagged, but is valid for an old-style PLT.
Look for the SHT_DYNAMIC section and the DT_PLTGOT tag in it.
Its d_ptr should match the .plt section's sh_addr. */
Elf_Scn *scn = NULL;
while ((scn = elf_nextscn (ebl->elf, scn)) != NULL)
{
GElf_Shdr scn_shdr;
if (likely (gelf_getshdr (scn, &scn_shdr) != NULL)
&& scn_shdr.sh_type == SHT_DYNAMIC
&& scn_shdr.sh_entsize != 0)
{
GElf_Addr pltgot = 0;
Elf_Data *data = elf_getdata (scn, NULL);
if (data != NULL)
for (size_t i = 0; i < data->d_size / scn_shdr.sh_entsize; ++i)
{
GElf_Dyn dyn;
if (unlikely (gelf_getdyn (data, i, &dyn) == NULL))
break;
if (dyn.d_tag == DT_PLTGOT)
pltgot = dyn.d_un.d_ptr;
else if (dyn.d_tag == DT_ALPHA_PLTRO && dyn.d_un.d_val != 0)
return false; /* This PLT should not be writable. */
}
return pltgot == shdr->sh_addr;
}
}
}
return false;
}
/* Check whether given symbol's st_value and st_size are OK despite failing
normal checks. */
bool
alpha_check_special_symbol (Elf *elf __attribute__ ((unused)),
GElf_Ehdr *ehdr __attribute__ ((unused)),
const GElf_Sym *sym __attribute__ ((unused)),
const char *name,
const GElf_Shdr *destshdr __attribute__ ((unused)))
{
if (name == NULL)
return false;
if (strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
/* On Alpha any place in the section is valid. */
return true;
return false;
}
/* Check whether only valid bits are set on the st_other symbol flag.
Standard ST_VISIBILITY have already been masked off. */
bool
alpha_check_st_other_bits (unsigned char st_other)
{
return ((((st_other & STO_ALPHA_STD_GPLOAD) == STO_ALPHA_NOPV)
|| ((st_other & STO_ALPHA_STD_GPLOAD) == STO_ALPHA_STD_GPLOAD))
&& (st_other &~ STO_ALPHA_STD_GPLOAD) == 0);
}

241
elfutils/backends/arm_attrs.c Normal file
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/* Object attribute tags for ARM.
Copyright (C) 2009 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <dwarf.h>
#define BACKEND arm_
#include "libebl_CPU.h"
#define KNOWN_VALUES(...) do \
{ \
static const char *table[] = { __VA_ARGS__ }; \
if (value < sizeof table / sizeof table[0]) \
*value_name = table[value]; \
} while (0)
bool
arm_check_object_attribute (Ebl *ebl __attribute__ ((unused)),
const char *vendor, int tag, uint64_t value,
const char **tag_name, const char **value_name)
{
if (!strcmp (vendor, "aeabi"))
switch (tag)
{
case 4:
*tag_name = "CPU_raw_name";
return true;
case 5:
*tag_name = "CPU_name";
return true;
case 6:
*tag_name = "CPU_arch";
KNOWN_VALUES ("Pre-v4",
"v4",
"v4T",
"v5T",
"v5TE",
"v5TEJ",
"v6",
"v6KZ",
"v6T2",
"v6K",
"v7",
"v6-M",
"v6S-M");
return true;
case 7:
*tag_name = "CPU_arch_profile";
switch (value)
{
case 'A':
*value_name = "Application";
break;
case 'R':
*value_name = "Realtime";
break;
case 'M':
*value_name = "Microcontroller";
break;
}
return true;
case 8:
*tag_name = "ARM_ISA_use";
KNOWN_VALUES ("No", "Yes");
return true;
case 9:
*tag_name = "THUMB_ISA_use";
KNOWN_VALUES ("No", "Thumb-1", "Thumb-2");
return true;
case 10:
*tag_name = "VFP_arch";
KNOWN_VALUES ("No", "VFPv1", "VFPv2", "VFPv3", "VFPv3-D16");
return true;
case 11:
*tag_name = "WMMX_arch";
KNOWN_VALUES ("No", "WMMXv1", "WMMXv2");
return true;
case 12:
*tag_name = "Advanced_SIMD_arch";
KNOWN_VALUES ("No", "NEONv1");
return true;
case 13:
*tag_name = "PCS_config";
KNOWN_VALUES ("None",
"Bare platform",
"Linux application",
"Linux DSO",
"PalmOS 2004",
"PalmOS (reserved)",
"SymbianOS 2004",
"SymbianOS (reserved)");
return true;
case 14:
*tag_name = "ABI_PCS_R9_use";
KNOWN_VALUES ("V6", "SB", "TLS", "Unused");
return true;
case 15:
*tag_name = "ABI_PCS_RW_data";
KNOWN_VALUES ("Absolute", "PC-relative", "SB-relative", "None");
return true;
case 16:
*tag_name = "ABI_PCS_RO_data";
KNOWN_VALUES ("Absolute", "PC-relative", "None");
return true;
case 17:
*tag_name = "ABI_PCS_GOT_use";
KNOWN_VALUES ("None", "direct", "GOT-indirect");
return true;
case 18:
*tag_name = "ABI_PCS_wchar_t";
return true;
case 19:
*tag_name = "ABI_FP_rounding";
KNOWN_VALUES ("Unused", "Needed");
return true;
case 20:
*tag_name = "ABI_FP_denormal";
KNOWN_VALUES ("Unused", "Needed", "Sign only");
return true;
case 21:
*tag_name = "ABI_FP_exceptions";
KNOWN_VALUES ("Unused", "Needed");
return true;
case 22:
*tag_name = "ABI_FP_user_exceptions";
KNOWN_VALUES ("Unused", "Needed");
return true;
case 23:
*tag_name = "ABI_FP_number_model";
KNOWN_VALUES ("Unused", "Finite", "RTABI", "IEEE 754");
return true;
case 24:
*tag_name = "ABI_align8_needed";
KNOWN_VALUES ("No", "Yes", "4-byte");
return true;
case 25:
*tag_name = "ABI_align8_preserved";
KNOWN_VALUES ("No", "Yes, except leaf SP", "Yes");
return true;
case 26:
*tag_name = "ABI_enum_size";
KNOWN_VALUES ("Unused", "small", "int", "forced to int");
return true;
case 27:
*tag_name = "ABI_HardFP_use";
KNOWN_VALUES ("as VFP_arch", "SP only", "DP only", "SP and DP");
return true;
case 28:
*tag_name = "ABI_VFP_args";
KNOWN_VALUES ("AAPCS", "VFP registers", "custom");
return true;
case 29:
*tag_name = "ABI_WMMX_args";
KNOWN_VALUES ("AAPCS", "WMMX registers", "custom");
return true;
case 30:
*tag_name = "ABI_optimization_goals";
KNOWN_VALUES ("None",
"Prefer Speed",
"Aggressive Speed",
"Prefer Size",
"Aggressive Size",
"Prefer Debug",
"Aggressive Debug");
return true;
case 31:
*tag_name = "ABI_FP_optimization_goals";
KNOWN_VALUES ("None",
"Prefer Speed",
"Aggressive Speed",
"Prefer Size",
"Aggressive Size",
"Prefer Accuracy",
"Aggressive Accuracy");
return true;
case 34:
*tag_name = "CPU_unaligned_access";
KNOWN_VALUES ("None", "v6");
return true;
case 36:
*tag_name = "VFP_HP_extension";
KNOWN_VALUES ("Not Allowed", "Allowed");
return true;
case 38:
*tag_name = "ABI_FP_16bit_format";
KNOWN_VALUES ("None", "IEEE 754", "Alternative Format");
return true;
case 64:
*tag_name = "nodefaults";
return true;
case 65:
*tag_name = "also_compatible_with";
return true;
case 66:
*tag_name = "T2EE_use";
KNOWN_VALUES ("Not Allowed", "Allowed");
return true;
case 67:
*tag_name = "conformance";
return true;
case 68:
*tag_name = "Virtualization_use";
KNOWN_VALUES ("Not Allowed", "Allowed");
return true;
case 70:
*tag_name = "MPextension_use";
KNOWN_VALUES ("Not Allowed", "Allowed");
return true;
}
return false;
}

49
elfutils/backends/arm_auxv.c Normal file
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/* ARM-specific auxv handling.
Copyright (C) 2009 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND arm_
#include "libebl_CPU.h"
int
EBLHOOK(auxv_info) (GElf_Xword a_type, const char **name, const char **format)
{
if (a_type != AT_HWCAP)
return 0;
*name = "HWCAP";
*format = "b"
"swp\0" "half\0" "thumb\0" "26bit\0"
"fast-mult\0" "fpa\0" "vfp\0" "edsp\0"
"java\0" "iwmmxt\0"
"\0";
return 1;
}

90
elfutils/backends/arm_cfi.c Normal file
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/* arm ABI-specified defaults for DWARF CFI.
Copyright (C) 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <dwarf.h>
#define BACKEND arm_
#include "libebl_CPU.h"
/* ABI-specified state of DWARF CFI based on:
"DWARF for the ARM Architecture ABI r2.09"
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0040b/IHI0040B_aadwarf.pdf
"Procedure Call Standard for the ARM Architecture ABI r2.09"
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0042e/IHI0042E_aapcs.pdf
*/
int
arm_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
{
static const uint8_t abi_cfi[] =
{
/* The initial Canonical Frame Address is the value of the
Stack Pointer (r13) as setup in the previous frame. */
DW_CFA_def_cfa, ULEB128_7 (13), ULEB128_7 (0),
/* The Stack Pointer (r13) is restored from CFA address by default. */
DW_CFA_val_offset, ULEB128_7 (13), ULEB128_7 (0),
#define SV(n) DW_CFA_same_value, ULEB128_7 (n)
/* Callee-saved regs r4-r8, r10, r11. */
SV (4), SV (5), SV (6), SV (7), SV (8), SV (10), SV (11),
/* The link register contains the return address setup by caller. */
SV (14),
DW_CFA_register, ULEB128_7 (15), ULEB128_7 (14), /* pc = lr */
#undef SV
/* VFP S16-S31/D8-D15/Q4-Q7 are callee saved.
And uleb128 encoded with two bytes. */
#define ULEB128_8_2(x) ((x & 0x7f) | 0x80), 0x02
#define SV(n) DW_CFA_same_value, ULEB128_8_2 (n)
SV (264), SV (265), SV (266), SV (267),
SV (268), SV (269), SV (270), SV (271),
/* XXX Note: registers intentionally unused by the program,
for example as a consequence of the procedure call standard
should be initialized as if by DW_CFA_same_value. */
};
#undef ULEB128_8_2
#undef SV
abi_info->initial_instructions = abi_cfi;
abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
abi_info->data_alignment_factor = 4;
abi_info->return_address_register = 15; /* pc. */
return 0;
}

94
elfutils/backends/arm_corenote.c Normal file
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/* ARM specific core note handling.
Copyright (C) 2009, 2012 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <inttypes.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/time.h>
#define BACKEND arm_
#include "libebl_CPU.h"
static const Ebl_Register_Location prstatus_regs[] =
{
{ .offset = 0, .regno = 0, .count = 16, .bits = 32 }, /* r0..r15 */
{ .offset = 16 * 4, .regno = 128, .count = 1, .bits = 32 }, /* cpsr */
};
#define PRSTATUS_REGS_SIZE (18 * 4)
#define PRSTATUS_REGSET_ITEMS \
{ \
.name = "orig_r0", .type = ELF_T_SWORD, .format = 'd', \
.offset = offsetof (struct EBLHOOK(prstatus), pr_reg) + (4 * 17), \
.group = "register" \
}
static const Ebl_Register_Location fpregset_regs[] =
{
{ .offset = 0, .regno = 96, .count = 8, .bits = 96 }, /* f0..f7 */
};
#define FPREGSET_SIZE 116
#define ULONG uint32_t
#define PID_T int32_t
#define UID_T uint16_t
#define GID_T uint16_t
#define ALIGN_ULONG 4
#define ALIGN_PID_T 4
#define ALIGN_UID_T 2
#define ALIGN_GID_T 2
#define TYPE_ULONG ELF_T_WORD
#define TYPE_PID_T ELF_T_SWORD
#define TYPE_UID_T ELF_T_HALF
#define TYPE_GID_T ELF_T_HALF
#define ARM_VFPREGS_SIZE ( 32 * 8 /*fpregs*/ + 4 /*fpscr*/ )
static const Ebl_Register_Location vfp_regs[] =
{
{ .offset = 0, .regno = 256, .count = 32, .bits = 64 }, /* fpregs */
};
static const Ebl_Core_Item vfp_items[] =
{
{
.name = "fpscr", .group = "register",
.offset = 0,
.type = ELF_T_WORD, .format = 'x',
},
};
#define EXTRA_NOTES \
EXTRA_REGSET_ITEMS (NT_ARM_VFP, ARM_VFPREGS_SIZE, vfp_regs, vfp_items)
#include "linux-core-note.c"

77
elfutils/backends/arm_init.c Normal file
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/* Initialization of Arm specific backend library.
Copyright (C) 2002, 2005, 2009, 2013, 2014, 2015, 2017 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2002.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND arm_
#define RELOC_PREFIX R_ARM_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on arm_reloc.def. */
#include "common-reloc.c"
const char *
arm_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "ARM";
arm_init_reloc (eh);
HOOK (eh, segment_type_name);
HOOK (eh, section_type_name);
HOOK (eh, machine_flag_check);
HOOK (eh, reloc_simple_type);
HOOK (eh, register_info);
HOOK (eh, core_note);
HOOK (eh, auxv_info);
HOOK (eh, check_object_attribute);
HOOK (eh, return_value_location);
HOOK (eh, abi_cfi);
HOOK (eh, check_reloc_target_type);
HOOK (eh, symbol_type_name);
HOOK (eh, data_marker_symbol);
/* We only unwind the core integer registers. */
eh->frame_nregs = 16;
HOOK (eh, set_initial_registers_tid);
/* Bit zero encodes whether an function address is THUMB or ARM. */
eh->func_addr_mask = ~(GElf_Addr)1;
return MODVERSION;
}

94
elfutils/backends/arm_initreg.c Normal file
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@ -0,0 +1,94 @@
/* Fetch live process registers from TID.
Copyright (C) 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef __linux__
#if defined __arm__
# include <sys/types.h>
# include <sys/user.h>
# include <sys/ptrace.h>
#endif
#ifdef __aarch64__
# include <linux/uio.h>
# include <sys/user.h>
# include <sys/ptrace.h>
/* Deal with old glibc defining user_pt_regs instead of user_regs_struct. */
# ifndef HAVE_SYS_USER_REGS
# define user_regs_struct user_pt_regs
# endif
#endif
#endif
#define BACKEND arm_
#include "libebl_CPU.h"
bool
arm_set_initial_registers_tid (pid_t tid __attribute__ ((unused)),
ebl_tid_registers_t *setfunc __attribute__ ((unused)),
void *arg __attribute__ ((unused)))
{
#if !defined(__linux__) || (!defined __arm__ && !defined __aarch64__)
return false;
#else /* __arm__ || __aarch64__ */
#if defined __arm__
struct user_regs user_regs;
if (ptrace (PTRACE_GETREGS, tid, NULL, &user_regs) != 0)
return false;
Dwarf_Word dwarf_regs[16];
/* R0..R12 SP LR PC */
for (int i = 0; i < 16; i++)
dwarf_regs[i] = user_regs.uregs[i];
return setfunc (0, 16, dwarf_regs, arg);
#elif defined __aarch64__
/* Compat mode: arm compatible code running on aarch64 */
int i;
struct user_regs_struct gregs;
struct iovec iovec;
iovec.iov_base = &gregs;
iovec.iov_len = sizeof (gregs);
if (ptrace (PTRACE_GETREGSET, tid, NT_PRSTATUS, &iovec) != 0)
return false;
Dwarf_Word dwarf_regs[16];
/* R0..R12 SP LR PC, encoded as 32 bit quantities */
uint32_t *u32_ptr = (uint32_t *) &gregs.regs[0];
for (i = 0; i < 16; i++)
dwarf_regs[i] = u32_ptr[i];
return setfunc (0, 16, dwarf_regs, arg);
#else
# error "source file error, it cannot happen"
#endif
#endif
}

120
elfutils/backends/arm_regs.c Normal file
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@ -0,0 +1,120 @@
/* Register names and numbers for ARM DWARF.
Copyright (C) 2009 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <dwarf.h>
#define BACKEND arm_
#include "libebl_CPU.h"
ssize_t
arm_register_info (Ebl *ebl __attribute__ ((unused)),
int regno, char *name, size_t namelen,
const char **prefix, const char **setname,
int *bits, int *type)
{
if (name == NULL)
return 320;
if (regno < 0 || regno > 320 || namelen < 5)
return -1;
*prefix = "";
*bits = 32;
*type = DW_ATE_signed;
*setname = "integer";
switch (regno)
{
case 0 ... 9:
name[0] = 'r';
name[1] = regno + '0';
namelen = 2;
break;
case 10 ... 12:
name[0] = 'r';
name[1] = '1';
name[2] = regno % 10 + '0';
namelen = 3;
break;
case 13 ... 15:
*type = DW_ATE_address;
name[0] = "slp"[regno - 13];
name[1] = "prc"[regno - 13];
namelen = 2;
break;
case 16 + 0 ... 16 + 7:
regno += 96 - 16;
/* Fall through. */
case 96 + 0 ... 96 + 7:
*setname = "FPA";
*type = DW_ATE_float;
*bits = 96;
name[0] = 'f';
name[1] = regno - 96 + '0';
namelen = 2;
break;
case 128:
*type = DW_ATE_unsigned;
return stpcpy (name, "spsr") + 1 - name;
case 256 + 0 ... 256 + 9:
*setname = "VFP";
*type = DW_ATE_float;
*bits = 64;
name[0] = 'd';
name[1] = regno - 256 + '0';
namelen = 2;
break;
case 256 + 10 ... 256 + 31:
*setname = "VFP";
*type = DW_ATE_float;
*bits = 64;
name[0] = 'd';
name[1] = (regno - 256) / 10 + '0';
name[2] = (regno - 256) % 10 + '0';
namelen = 3;
break;
default:
*setname = NULL;
return 0;
}
name[namelen++] = '\0';
return namelen;
}

157
elfutils/backends/arm_reloc.def Normal file
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@ -0,0 +1,157 @@
/* List the relocation types for arm. -*- C -*-
Copyright (C) 2005-2010, 2014, 2015 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (NONE, REL) /* It really is used in ET_REL on ARM. */
RELOC_TYPE (PC24, REL|EXEC|DYN)
RELOC_TYPE (ABS32, REL|EXEC|DYN)
RELOC_TYPE (REL32, REL)
RELOC_TYPE (PC13, REL)
RELOC_TYPE (ABS16, REL)
RELOC_TYPE (ABS12, REL)
RELOC_TYPE (THM_ABS5, REL)
RELOC_TYPE (ABS8, REL)
RELOC_TYPE (SBREL32, REL)
RELOC_TYPE (THM_PC22, REL)
RELOC_TYPE (THM_PC8, REL)
RELOC_TYPE (AMP_VCALL9, REL)
RELOC_TYPE (TLS_DESC, EXEC|DYN)
RELOC_TYPE (THM_SWI8, REL)
RELOC_TYPE (XPC25, REL)
RELOC_TYPE (THM_XPC22, REL)
RELOC_TYPE (TLS_DTPMOD32, EXEC|DYN)
RELOC_TYPE (TLS_DTPOFF32, EXEC|DYN)
RELOC_TYPE (TLS_TPOFF32, EXEC|DYN)
RELOC_TYPE (COPY, EXEC|DYN)
RELOC_TYPE (GLOB_DAT, EXEC|DYN)
RELOC_TYPE (JUMP_SLOT, EXEC|DYN)
RELOC_TYPE (RELATIVE, EXEC|DYN)
RELOC_TYPE (GOTOFF, REL)
RELOC_TYPE (GOTPC, REL)
RELOC_TYPE (GOT32, REL)
RELOC_TYPE (PLT32, REL)
RELOC_TYPE (CALL, REL)
RELOC_TYPE (JUMP24, REL)
RELOC_TYPE (THM_JUMP24, REL)
RELOC_TYPE (BASE_ABS, REL)
RELOC_TYPE (ALU_PCREL_7_0, REL)
RELOC_TYPE (ALU_PCREL_15_8, REL)
RELOC_TYPE (ALU_PCREL_23_15, REL)
RELOC_TYPE (LDR_SBREL_11_0, REL)
RELOC_TYPE (ALU_SBREL_19_12, REL)
RELOC_TYPE (ALU_SBREL_27_20, REL)
RELOC_TYPE (TARGET1, REL)
RELOC_TYPE (SBREL31, REL)
RELOC_TYPE (V4BX, REL)
RELOC_TYPE (TARGET2, REL)
RELOC_TYPE (PREL31, REL)
RELOC_TYPE (MOVW_ABS_NC, REL)
RELOC_TYPE (MOVT_ABS, REL)
RELOC_TYPE (MOVW_PREL_NC, REL)
RELOC_TYPE (MOVT_PREL, REL)
RELOC_TYPE (THM_MOVW_ABS_NC, REL)
RELOC_TYPE (THM_MOVT_ABS, REL)
RELOC_TYPE (THM_MOVW_PREL_NC, REL)
RELOC_TYPE (THM_MOVT_PREL, REL)
RELOC_TYPE (THM_JUMP19, REL)
RELOC_TYPE (THM_JUMP6, REL)
RELOC_TYPE (THM_ALU_PREL_11_0, REL)
RELOC_TYPE (THM_PC12, REL)
RELOC_TYPE (ABS32_NOI, REL)
RELOC_TYPE (REL32_NOI, REL)
RELOC_TYPE (ALU_PC_G0_NC, REL)
RELOC_TYPE (ALU_PC_G0, REL)
RELOC_TYPE (ALU_PC_G1_NC, REL)
RELOC_TYPE (ALU_PC_G1, REL)
RELOC_TYPE (ALU_PC_G2, REL)
RELOC_TYPE (LDR_PC_G1, REL)
RELOC_TYPE (LDR_PC_G2, REL)
RELOC_TYPE (LDRS_PC_G0, REL)
RELOC_TYPE (LDRS_PC_G1, REL)
RELOC_TYPE (LDRS_PC_G2, REL)
RELOC_TYPE (LDC_PC_G0, REL)
RELOC_TYPE (LDC_PC_G1, REL)
RELOC_TYPE (LDC_PC_G2, REL)
RELOC_TYPE (ALU_SB_G0_NC, REL)
RELOC_TYPE (ALU_SB_G0, REL)
RELOC_TYPE (ALU_SB_G1_NC, REL)
RELOC_TYPE (ALU_SB_G1, REL)
RELOC_TYPE (ALU_SB_G2, REL)
RELOC_TYPE (LDR_SB_G0, REL)
RELOC_TYPE (LDR_SB_G1, REL)
RELOC_TYPE (LDR_SB_G2, REL)
RELOC_TYPE (LDRS_SB_G0, REL)
RELOC_TYPE (LDRS_SB_G1, REL)
RELOC_TYPE (LDRS_SB_G2, REL)
RELOC_TYPE (LDC_SB_G0, REL)
RELOC_TYPE (LDC_SB_G1, REL)
RELOC_TYPE (LDC_SB_G2, REL)
RELOC_TYPE (MOVW_BREL_NC, REL)
RELOC_TYPE (MOVT_BREL, REL)
RELOC_TYPE (MOVW_BREL, REL)
RELOC_TYPE (THM_MOVW_BREL_NC, REL)
RELOC_TYPE (THM_MOVT_BREL, REL)
RELOC_TYPE (THM_MOVW_BREL, REL)
RELOC_TYPE (TLS_GOTDESC, REL)
RELOC_TYPE (TLS_CALL, REL)
RELOC_TYPE (TLS_DESCSEQ, REL)
RELOC_TYPE (THM_TLS_CALL, REL)
RELOC_TYPE (PLT32_ABS, REL)
RELOC_TYPE (GOT_ABS, REL)
RELOC_TYPE (GOT_PREL, REL)
RELOC_TYPE (GOT_BREL12, REL)
RELOC_TYPE (GOTOFF12, REL)
RELOC_TYPE (GOTRELAX, REL)
RELOC_TYPE (GNU_VTENTRY, REL)
RELOC_TYPE (GNU_VTINHERIT, REL)
RELOC_TYPE (THM_PC11, REL)
RELOC_TYPE (THM_PC9, REL)
RELOC_TYPE (TLS_GD32, REL)
RELOC_TYPE (TLS_LDM32, REL)
RELOC_TYPE (TLS_LDO32, REL)
RELOC_TYPE (TLS_IE32, REL)
RELOC_TYPE (TLS_LE32, REL)
RELOC_TYPE (TLS_LDO12, REL)
RELOC_TYPE (TLS_LE12, REL)
RELOC_TYPE (TLS_IE12GP, REL)
RELOC_TYPE (ME_TOO, REL)
RELOC_TYPE (THM_TLS_DESCSEQ16, REL)
RELOC_TYPE (THM_TLS_DESCSEQ32, REL)
RELOC_TYPE (THM_GOT_BREL12, REL)
RELOC_TYPE (IRELATIVE, EXEC|DYN)
RELOC_TYPE (RXPC25, REL)
RELOC_TYPE (RSBREL32, REL)
RELOC_TYPE (THM_RPC22, REL)
RELOC_TYPE (RREL32, REL)
RELOC_TYPE (RABS22, REL)
RELOC_TYPE (RPC24, REL)
RELOC_TYPE (RBASE, REL)

127
elfutils/backends/arm_retval.c Normal file
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/* Function return value location for ARM EABI.
Copyright (C) 2009-2010, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <dwarf.h>
#define BACKEND arm_
#include "libebl_CPU.h"
/* r0, or pair r0, r1, or aggregate up to r0-r3. */
static const Dwarf_Op loc_intreg[] =
{
{ .atom = DW_OP_reg0 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_reg1 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 4 },
};
#define nloc_intreg 1
#define nloc_intregs(n) (2 * (n))
/* The return value is a structure and is actually stored in stack space
passed in a hidden argument by the caller. But, the compiler
helpfully returns the address of that space in r0. */
static const Dwarf_Op loc_aggregate[] =
{
{ .atom = DW_OP_breg0, .number = 0 }
};
#define nloc_aggregate 1
int
arm_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
Dwarf_Die die_mem, *typedie = &die_mem;
int tag = dwarf_peeled_die_type (functypedie, typedie);
if (tag <= 0)
return tag;
Dwarf_Word size;
switch (tag)
{
case -1:
return -1;
case DW_TAG_subrange_type:
if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
{
Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
/* Fall through. */
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
{
Dwarf_Attribute attr_mem;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
&attr_mem), &size) != 0)
{
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
size = 4;
else
return -1;
}
if (size <= 16)
{
intreg:
*locp = loc_intreg;
return size <= 4 ? nloc_intreg : nloc_intregs ((size + 3) / 4);
}
aggregate:
*locp = loc_aggregate;
return nloc_aggregate;
}
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
case DW_TAG_array_type:
if (dwarf_aggregate_size (typedie, &size) == 0
&& size > 0 && size <= 4)
goto intreg;
goto aggregate;
}
/* XXX We don't have a good way to return specific errors from ebl calls.
This value means we do not understand the type, but it is well-formed
DWARF and might be valid. */
return -2;
}

157
elfutils/backends/arm_symbol.c Normal file
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/* Arm specific symbolic name handling.
Copyright (C) 2002-2009, 2014, 2015, 2017 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <stddef.h>
#include <string.h>
#define BACKEND arm_
#include "libebl_CPU.h"
const char *
arm_segment_type_name (int segment, char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
switch (segment)
{
case PT_ARM_EXIDX:
return "ARM_EXIDX";
}
return NULL;
}
/* Return symbolic representation of section type. */
const char *
arm_section_type_name (int type,
char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
switch (type)
{
case SHT_ARM_EXIDX:
return "ARM_EXIDX";
case SHT_ARM_PREEMPTMAP:
return "ARM_PREEMPTMAP";
case SHT_ARM_ATTRIBUTES:
return "ARM_ATTRIBUTES";
}
return NULL;
}
/* Check whether machine flags are valid. */
bool
arm_machine_flag_check (GElf_Word flags)
{
switch (flags & EF_ARM_EABIMASK)
{
case EF_ARM_EABI_UNKNOWN:
case EF_ARM_EABI_VER1:
case EF_ARM_EABI_VER2:
case EF_ARM_EABI_VER3:
case EF_ARM_EABI_VER4:
case EF_ARM_EABI_VER5:
break;
default:
return false;
}
return ((flags &~ (EF_ARM_EABIMASK
| EF_ARM_RELEXEC
| EF_ARM_HASENTRY
| EF_ARM_INTERWORK
| EF_ARM_APCS_26
| EF_ARM_APCS_FLOAT
| EF_ARM_PIC
| EF_ARM_ALIGN8
| EF_ARM_NEW_ABI
| EF_ARM_OLD_ABI
| EF_ARM_SOFT_FLOAT
| EF_ARM_VFP_FLOAT
| EF_ARM_MAVERICK_FLOAT
| EF_ARM_SYMSARESORTED
| EF_ARM_DYNSYMSUSESEGIDX
| EF_ARM_MAPSYMSFIRST
| EF_ARM_EABIMASK
| EF_ARM_BE8
| EF_ARM_LE8)) == 0);
}
/* Check for the simple reloc types. */
Elf_Type
arm_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
{
switch (type)
{
case R_ARM_ABS32:
return ELF_T_WORD;
case R_ARM_ABS16:
return ELF_T_HALF;
case R_ARM_ABS8:
return ELF_T_BYTE;
default:
return ELF_T_NUM;
}
}
/* The SHT_ARM_EXIDX section type is a valid target for relocation. */
bool
arm_check_reloc_target_type (Ebl *ebl __attribute__ ((unused)), Elf64_Word sh_type)
{
return sh_type == SHT_ARM_EXIDX;
}
const char *
arm_symbol_type_name (int type,
char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
switch (type)
{
case STT_ARM_TFUNC:
return "ARM_TFUNC";
}
return NULL;
}
/* A data mapping symbol is a symbol with "$d" name or "$d.<any...>" name,
* STT_NOTYPE, STB_LOCAL and st_size of zero. The indicate the stat of a
* sequence of data items. */
bool
arm_data_marker_symbol (const GElf_Sym *sym, const char *sname)
{
return (sym != NULL && sname != NULL
&& sym->st_size == 0 && GELF_ST_BIND (sym->st_info) == STB_LOCAL
&& GELF_ST_TYPE (sym->st_info) == STT_NOTYPE
&& (strcmp (sname, "$d") == 0 || strncmp (sname, "$d.", 3) == 0));
}

58
elfutils/backends/bpf_init.c Normal file
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/* Initialization of BPF specific backend library.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND bpf_
#define RELOC_PREFIX R_BPF_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on bpf_reloc.def. */
#define NO_RELATIVE_RELOC
#define NO_COPY_RELOC
#include "common-reloc.c"
const char *
bpf_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh, size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "BPF";
bpf_init_reloc (eh);
HOOK (eh, register_info);
HOOK (eh, disasm);
return MODVERSION;
}

60
elfutils/backends/bpf_regs.c Normal file
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@ -0,0 +1,60 @@
/* Register names and numbers for BPF DWARF.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include "bpf.h"
#define BACKEND bpf_
#include "libebl_CPU.h"
ssize_t
bpf_register_info (Ebl *ebl __attribute__ ((unused)),
int regno, char *name, size_t namelen,
const char **prefix, const char **setname,
int *bits, int *type)
{
ssize_t len;
if (name == NULL)
return MAX_BPF_REG;
if (regno < 0 || regno >= MAX_BPF_REG)
return -1;
*prefix = "";
*setname = "integer";
*bits = 64;
*type = DW_ATE_signed;
len = snprintf(name, namelen, "r%d", regno);
return ((size_t)len < namelen ? len : -1);
}

31
elfutils/backends/bpf_reloc.def Normal file
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@ -0,0 +1,31 @@
/* List the relocation types for BPF. -*- C -*-
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (NONE, EXEC|DYN)
RELOC_TYPE (MAP_FD, REL|EXEC|DYN)

162
elfutils/backends/common-reloc.c Normal file
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@ -0,0 +1,162 @@
/* Common code for ebl reloc functions.
Copyright (C) 2005, 2006 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#include "libebl_CPU.h"
#include <assert.h>
#define R_TYPE(name) PASTE (RELOC_PREFIX, name)
#define PASTE(a, b) PASTE_1 (a, b)
#define PASTE_1(a, b) a##b
#define R_NAME(name) R_NAME_1 (RELOC_PREFIX, name)
#define R_NAME_1(prefix, type) R_NAME_2 (prefix, type)
#define R_NAME_2(prefix, type) #prefix #type
#define RELOC_TYPES STRINGIFIED_PASTE (BACKEND, reloc.def)
#define STRINGIFIED_PASTE(a, b) STRINGIFY (PASTE (a, b))
#define STRINGIFY(x) STRINGIFY_1 (x)
#define STRINGIFY_1(x) #x
/* Provide a table of reloc type names, in a PIC-friendly fashion. */
static const struct EBLHOOK(reloc_nametable)
{
char zero;
#define RELOC_TYPE(type, uses) \
char name_##type[sizeof R_NAME (type)];
#include RELOC_TYPES
#undef RELOC_TYPE
} EBLHOOK(reloc_nametable) =
{
'\0',
#define RELOC_TYPE(type, uses) R_NAME (type),
#include RELOC_TYPES
#undef RELOC_TYPE
};
#define reloc_namestr (&EBLHOOK(reloc_nametable).zero)
static const uint_fast16_t EBLHOOK(reloc_nameidx)[] =
{
#define RELOC_TYPE(type, uses) \
[R_TYPE (type)] = offsetof (struct EBLHOOK(reloc_nametable), name_##type),
#include RELOC_TYPES
#undef RELOC_TYPE
};
#define nreloc \
((int) (sizeof EBLHOOK(reloc_nameidx) / sizeof EBLHOOK(reloc_nameidx)[0]))
#define REL (1 << (ET_REL - 1))
#define EXEC (1 << (ET_EXEC - 1))
#define DYN (1 << (ET_DYN - 1))
static const uint8_t EBLHOOK(reloc_valid)[] =
{
#define RELOC_TYPE(type, uses) [R_TYPE (type)] = uses,
#include RELOC_TYPES
#undef RELOC_TYPE
};
#undef REL
#undef EXEC
#undef DYN
const char *
EBLHOOK(reloc_type_name) (int reloc,
char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
#ifdef RELOC_TYPE_ID
reloc = RELOC_TYPE_ID (reloc);
#endif
if (reloc >= 0 && reloc < nreloc && EBLHOOK(reloc_nameidx)[reloc] != 0)
return &reloc_namestr[EBLHOOK(reloc_nameidx)[reloc]];
return NULL;
}
bool
EBLHOOK(reloc_type_check) (int reloc)
{
#ifdef RELOC_TYPE_ID
reloc = RELOC_TYPE_ID (reloc);
#endif
return reloc >= 0 && reloc < nreloc && EBLHOOK(reloc_nameidx)[reloc] != 0;
}
bool
EBLHOOK(reloc_valid_use) (Elf *elf, int reloc)
{
uint8_t uses;
GElf_Ehdr ehdr_mem;
GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem);
assert (ehdr != NULL);
uint8_t type = ehdr->e_type;
#ifdef RELOC_TYPE_ID
reloc = RELOC_TYPE_ID (reloc);
#endif
uses = EBLHOOK(reloc_valid)[reloc];
return type > ET_NONE && type < ET_CORE && (uses & (1 << (type - 1)));
}
#ifndef NO_COPY_RELOC
bool
EBLHOOK(copy_reloc_p) (int reloc)
{
return reloc == R_TYPE (COPY);
}
#endif
bool
EBLHOOK(none_reloc_p) (int reloc)
{
return reloc == R_TYPE (NONE);
}
#ifndef NO_RELATIVE_RELOC
bool
EBLHOOK(relative_reloc_p) (int reloc)
{
return reloc == R_TYPE (RELATIVE);
}
#endif
static void
EBLHOOK(init_reloc) (Ebl *ebl)
{
ebl->reloc_type_name = EBLHOOK(reloc_type_name);
ebl->reloc_type_check = EBLHOOK(reloc_type_check);
ebl->reloc_valid_use = EBLHOOK(reloc_valid_use);
ebl->none_reloc_p = EBLHOOK(none_reloc_p);
#ifndef NO_COPY_RELOC
ebl->copy_reloc_p = EBLHOOK(copy_reloc_p);
#endif
#ifndef NO_RELATIVE_RELOC
ebl->relative_reloc_p = EBLHOOK(relative_reloc_p);
#endif
}

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/* i386 specific auxv handling.
Copyright (C) 2007 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND i386_
#include "libebl_CPU.h"
int
EBLHOOK(auxv_info) (GElf_Xword a_type, const char **name, const char **format)
{
if (a_type != AT_HWCAP)
return 0;
*name = "HWCAP";
*format = "b"
"fpu\0" "vme\0" "de\0" "pse\0" "tsc\0" "msr\0" "pae\0" "mce\0"
"cx8\0" "apic\0" "10\0" "sep\0" "mtrr\0" "pge\0" "mca\0" "cmov\0"
"pat\0" "pse36\0" "pn\0" "clflush\0" "20\0" "dts\0" "acpi\0" "mmx\0"
"fxsr\0" "sse\0" "sse2\0" "ss\0" "ht\0" "tm\0" "ia64\0" "pbe\0" "\0";
return 1;
}
__typeof (i386_auxv_info) x86_64_auxv_info
__attribute__ ((alias ("i386_auxv_info")));

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/* i386 ABI-specified defaults for DWARF CFI.
Copyright (C) 2009 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <dwarf.h>
#define BACKEND i386_
#include "libebl_CPU.h"
int
i386_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
{
static const uint8_t abi_cfi[] =
{
/* Call-saved regs. */
DW_CFA_same_value, ULEB128_7 (3), /* %ebx */
DW_CFA_same_value, ULEB128_7 (5), /* %ebp */
DW_CFA_same_value, ULEB128_7 (6), /* %esi */
DW_CFA_same_value, ULEB128_7 (7), /* %edi */
/* The CFA is the SP. */
DW_CFA_val_offset, ULEB128_7 (4), ULEB128_7 (0),
/* Segment registers are call-saved if ever used at all. */
DW_CFA_same_value, ULEB128_7 (40), /* %es */
DW_CFA_same_value, ULEB128_7 (41), /* %cs */
DW_CFA_same_value, ULEB128_7 (42), /* %ss */
DW_CFA_same_value, ULEB128_7 (43), /* %ds */
DW_CFA_same_value, ULEB128_7 (44), /* %fs */
DW_CFA_same_value, ULEB128_7 (45), /* %gs */
};
abi_info->initial_instructions = abi_cfi;
abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
abi_info->data_alignment_factor = 4;
abi_info->return_address_register = 8; /* %eip */
return 0;
}

138
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/* i386 specific core note handling.
Copyright (C) 2007-2010 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <inttypes.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/time.h>
#define BACKEND i386_
#include "libebl_CPU.h"
static const Ebl_Register_Location prstatus_regs[] =
{
#define GR(at, n, dwreg) \
{ .offset = at * 4, .regno = dwreg, .count = n, .bits = 32 }
#define SR(at, n, dwreg) \
{ .offset = at * 4, .regno = dwreg, .count = n, .bits = 16, .pad = 2 }
GR (0, 1, 3), /* %ebx */
GR (1, 2, 1), /* %ecx-%edx */
GR (3, 2, 6), /* %esi-%edi */
GR (5, 1, 5), /* %ebp */
GR (6, 1, 0), /* %eax */
SR (7, 1, 43), /* %ds */
SR (8, 1, 40), /* %es */
SR (9, 1, 44), /* %fs */
SR (10, 1, 45), /* %gs */
/* 11, 1, orig_eax */
GR (12, 1, 8), /* %eip */
SR (13, 1, 41), /* %cs */
GR (14, 1, 9), /* eflags */
GR (15, 1, 4), /* %esp */
SR (16, 1, 42), /* %ss */
#undef GR
#undef SR
};
#define PRSTATUS_REGS_SIZE (17 * 4)
#define ULONG uint32_t
#define PID_T int32_t
#define UID_T uint16_t
#define GID_T uint16_t
#define ALIGN_ULONG 4
#define ALIGN_PID_T 4
#define ALIGN_UID_T 2
#define ALIGN_GID_T 2
#define TYPE_ULONG ELF_T_WORD
#define TYPE_PID_T ELF_T_SWORD
#define TYPE_UID_T ELF_T_HALF
#define TYPE_GID_T ELF_T_HALF
#define PRSTATUS_REGSET_ITEMS \
{ \
.name = "orig_eax", .type = ELF_T_SWORD, .format = 'd', \
.offset = offsetof (struct EBLHOOK(prstatus), pr_reg) + (4 * 11), \
.group = "register" \
}
static const Ebl_Register_Location fpregset_regs[] =
{
{ .offset = 0, .regno = 37, .count = 2, .bits = 32 }, /* fctrl-fstat */
{ .offset = 7 * 4, .regno = 11, .count = 8, .bits = 80 }, /* stN */
};
#define FPREGSET_SIZE 108
static const Ebl_Register_Location prxfpreg_regs[] =
{
{ .offset = 0, .regno = 37, .count = 2, .bits = 16 }, /* fctrl-fstat */
{ .offset = 24, .regno = 39, .count = 1, .bits = 32 }, /* mxcsr */
{ .offset = 32, .regno = 11, .count = 8, .bits = 80, .pad = 6 }, /* stN */
{ .offset = 32 + 128, .regno = 21, .count = 8, .bits = 128 }, /* xmm */
};
#define EXTRA_NOTES \
EXTRA_REGSET (NT_PRXFPREG, 512, prxfpreg_regs) \
case NT_386_TLS: \
return tls_info (nhdr->n_descsz, regs_offset, nregloc, reglocs, \
nitems, items); \
EXTRA_NOTES_IOPERM
static const Ebl_Core_Item tls_items[] =
{
{ .type = ELF_T_WORD, .offset = 0x0, .format = 'd', .name = "index" },
{ .type = ELF_T_WORD, .offset = 0x4, .format = 'x', .name = "base" },
{ .type = ELF_T_WORD, .offset = 0x8, .format = 'x', .name = "limit" },
{ .type = ELF_T_WORD, .offset = 0xc, .format = 'x', .name = "flags" },
};
static int
tls_info (GElf_Word descsz, GElf_Word *regs_offset,
size_t *nregloc, const Ebl_Register_Location **reglocs,
size_t *nitems, const Ebl_Core_Item **items)
{
if (descsz % 16 != 0)
return 0;
*regs_offset = 0;
*nregloc = 0;
*reglocs = NULL;
*nitems = sizeof tls_items / sizeof tls_items[0];
*items = tls_items;
return 1;
}
#include "x86_corenote.c"
#include "linux-core-note.c"

71
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/* Initialization of i386 specific backend library.
Copyright (C) 2000-2009, 2013, 2017 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2000.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND i386_
#define RELOC_PREFIX R_386_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on i386_reloc.def. */
#include "common-reloc.c"
const char *
i386_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "Intel 80386";
i386_init_reloc (eh);
HOOK (eh, reloc_simple_type);
HOOK (eh, gotpc_reloc_check);
HOOK (eh, core_note);
generic_debugscn_p = eh->debugscn_p;
HOOK (eh, debugscn_p);
HOOK (eh, return_value_location);
HOOK (eh, register_info);
HOOK (eh, syscall_abi);
HOOK (eh, auxv_info);
HOOK (eh, disasm);
HOOK (eh, abi_cfi);
/* gcc/config/ #define DWARF_FRAME_REGISTERS. For i386 it is 17, why? */
eh->frame_nregs = 9;
HOOK (eh, set_initial_registers_tid);
HOOK (eh, unwind);
return MODVERSION;
}

79
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/* Fetch live process registers from TID.
Copyright (C) 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#if (defined __i386__ || defined __x86_64__) && defined(__linux__)
# include <sys/types.h>
# include <sys/user.h>
# include <sys/ptrace.h>
#endif
#define BACKEND i386_
#include "libebl_CPU.h"
bool
i386_set_initial_registers_tid (pid_t tid __attribute__ ((unused)),
ebl_tid_registers_t *setfunc __attribute__ ((unused)),
void *arg __attribute__ ((unused)))
{
#if (!defined __i386__ && !defined __x86_64__) || !defined(__linux__)
return false;
#else /* __i386__ || __x86_64__ */
struct user_regs_struct user_regs;
if (ptrace (PTRACE_GETREGS, tid, NULL, &user_regs) != 0)
return false;
Dwarf_Word dwarf_regs[9];
# if defined __i386__
dwarf_regs[0] = user_regs.eax;
dwarf_regs[1] = user_regs.ecx;
dwarf_regs[2] = user_regs.edx;
dwarf_regs[3] = user_regs.ebx;
dwarf_regs[4] = user_regs.esp;
dwarf_regs[5] = user_regs.ebp;
dwarf_regs[6] = user_regs.esi;
dwarf_regs[7] = user_regs.edi;
dwarf_regs[8] = user_regs.eip;
# elif defined __x86_64__
dwarf_regs[0] = user_regs.rax;
dwarf_regs[1] = user_regs.rcx;
dwarf_regs[2] = user_regs.rdx;
dwarf_regs[3] = user_regs.rbx;
dwarf_regs[4] = user_regs.rsp;
dwarf_regs[5] = user_regs.rbp;
dwarf_regs[6] = user_regs.rsi;
dwarf_regs[7] = user_regs.rdi;
dwarf_regs[8] = user_regs.rip;
# else /* (__i386__ || __x86_64__) && (!__i386__ && !__x86_64__) */
# error "source file error, it cannot happen"
# endif /* (__i386__ || __x86_64__) && (!__i386__ && !__x86_64__) */
return setfunc (0, 9, dwarf_regs, arg);
#endif /* __i386__ || __x86_64__ */
}

153
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/* Register names and numbers for i386 DWARF.
Copyright (C) 2005, 2006, 2007 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <dwarf.h>
#define BACKEND i386_
#include "libebl_CPU.h"
ssize_t
i386_register_info (Ebl *ebl __attribute__ ((unused)),
int regno, char *name, size_t namelen,
const char **prefix, const char **setname,
int *bits, int *type)
{
if (name == NULL)
return 46;
if (regno < 0 || regno > 45 || namelen < 6)
return -1;
*prefix = "%";
*bits = 32;
*type = DW_ATE_unsigned;
if (regno < 11)
{
*setname = "integer";
if (regno < 9)
*type = DW_ATE_signed;
}
else if (regno < 19)
{
*setname = "x87";
*type = DW_ATE_float;
*bits = 80;
}
else if (regno < 29)
{
*setname = "SSE";
*bits = 128;
}
else if (regno < 37)
{
*setname = "MMX";
*bits = 64;
}
else if (regno < 40)
*setname = "FPU-control";
else
{
*setname = "segment";
*bits = 16;
}
switch (regno)
{
static const char baseregs[][2] =
{
"ax", "cx", "dx", "bx", "sp", "bp", "si", "di", "ip"
};
case 4:
case 5:
case 8:
*type = DW_ATE_address;
/* Fallthrough */
case 0 ... 3:
case 6 ... 7:
name[0] = 'e';
name[1] = baseregs[regno][0];
name[2] = baseregs[regno][1];
namelen = 3;
break;
case 9:
return stpcpy (name, "eflags") + 1 - name;
case 10:
return stpcpy (name, "trapno") + 1 - name;
case 11 ... 18:
name[0] = 's';
name[1] = 't';
name[2] = regno - 11 + '0';
namelen = 3;
break;
case 21 ... 28:
name[0] = 'x';
name[1] = 'm';
name[2] = 'm';
name[3] = regno - 21 + '0';
namelen = 4;
break;
case 29 ... 36:
name[0] = 'm';
name[1] = 'm';
name[2] = regno - 29 + '0';
namelen = 3;
break;
case 37:
*bits = 16;
return stpcpy (name, "fctrl") + 1 - name;
case 38:
*bits = 16;
return stpcpy (name, "fstat") + 1 - name;
case 39:
return stpcpy (name, "mxcsr") + 1 - name;
case 40 ... 45:
name[0] = "ecsdfg"[regno - 40];
name[1] = 's';
namelen = 2;
break;
default:
*setname = NULL;
return 0;
}
name[namelen++] = '\0';
return namelen;
}

71
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/* List the relocation types for i386. -*- C -*-
Copyright (C) 2000, 2001, 2002, 2003, 2005, 2009, 2015 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (NONE, 0)
RELOC_TYPE (COPY, EXEC|DYN)
RELOC_TYPE (32, REL|EXEC|DYN)
RELOC_TYPE (PC32, REL|EXEC|DYN)
RELOC_TYPE (GOT32, REL)
RELOC_TYPE (PLT32, REL)
RELOC_TYPE (GLOB_DAT, EXEC|DYN)
RELOC_TYPE (JMP_SLOT, EXEC|DYN)
RELOC_TYPE (RELATIVE, EXEC|DYN)
RELOC_TYPE (GOTOFF, REL)
RELOC_TYPE (GOTPC, REL)
RELOC_TYPE (32PLT, REL)
RELOC_TYPE (TLS_TPOFF, EXEC|DYN)
RELOC_TYPE (TLS_IE, REL)
RELOC_TYPE (TLS_GOTIE, REL)
RELOC_TYPE (TLS_LE, REL)
RELOC_TYPE (TLS_GD, REL)
RELOC_TYPE (TLS_LDM, REL)
RELOC_TYPE (16, REL)
RELOC_TYPE (PC16, REL)
RELOC_TYPE (8, REL)
RELOC_TYPE (PC8, REL)
RELOC_TYPE (TLS_GD_32, REL)
RELOC_TYPE (TLS_GD_PUSH, REL)
RELOC_TYPE (TLS_GD_CALL, REL)
RELOC_TYPE (TLS_GD_POP, REL)
RELOC_TYPE (TLS_LDM_32, REL)
RELOC_TYPE (TLS_LDM_PUSH, REL)
RELOC_TYPE (TLS_LDM_CALL, REL)
RELOC_TYPE (TLS_LDM_POP, REL)
RELOC_TYPE (TLS_LDO_32, REL)
RELOC_TYPE (TLS_IE_32, REL)
RELOC_TYPE (TLS_LE_32, REL)
RELOC_TYPE (TLS_DTPMOD32, EXEC|DYN)
RELOC_TYPE (TLS_DTPOFF32, EXEC|DYN)
RELOC_TYPE (TLS_TPOFF32, EXEC|DYN)
RELOC_TYPE (TLS_GOTDESC, REL)
RELOC_TYPE (TLS_DESC_CALL, REL)
RELOC_TYPE (TLS_DESC, EXEC)
RELOC_TYPE (IRELATIVE, EXEC|DYN)
RELOC_TYPE (GOT32X, REL)

140
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/* Function return value location for Linux/i386 ABI.
Copyright (C) 2005-2010, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <dwarf.h>
#define BACKEND i386_
#include "libebl_CPU.h"
/* %eax, or pair %eax, %edx. */
static const Dwarf_Op loc_intreg[] =
{
{ .atom = DW_OP_reg0 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 4 },
};
#define nloc_intreg 1
#define nloc_intregpair 4
/* %st(0). */
static const Dwarf_Op loc_fpreg[] =
{
{ .atom = DW_OP_reg11 }
};
#define nloc_fpreg 1
/* The return value is a structure and is actually stored in stack space
passed in a hidden argument by the caller. But, the compiler
helpfully returns the address of that space in %eax. */
static const Dwarf_Op loc_aggregate[] =
{
{ .atom = DW_OP_breg0, .number = 0 }
};
#define nloc_aggregate 1
int
i386_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
Dwarf_Die die_mem, *typedie = &die_mem;
int tag = dwarf_peeled_die_type (functypedie, typedie);
if (tag <= 0)
return tag;
switch (tag)
{
case -1:
return -1;
case DW_TAG_subrange_type:
if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
{
Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
/* Fall through. */
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
{
Dwarf_Word size;
Dwarf_Attribute attr_mem;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
&attr_mem), &size) != 0)
{
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
size = 4;
else
return -1;
}
if (tag == DW_TAG_base_type)
{
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
&attr_mem),
&encoding) != 0)
return -1;
if (encoding == DW_ATE_float)
{
if (size > 16)
return -2;
*locp = loc_fpreg;
return nloc_fpreg;
}
}
*locp = loc_intreg;
if (size <= 4)
return nloc_intreg;
if (size <= 8)
return nloc_intregpair;
}
/* Fallthrough */
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
case DW_TAG_array_type:
*locp = loc_aggregate;
return nloc_aggregate;
}
/* XXX We don't have a good way to return specific errors from ebl calls.
This value means we do not understand the type, but it is well-formed
DWARF and might be valid. */
return -2;
}

75
elfutils/backends/i386_symbol.c Normal file
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/* i386 specific symbolic name handling.
Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2000.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <elf.h>
#include <stddef.h>
#include <string.h>
#define BACKEND i386_
#include "libebl_CPU.h"
/* Return true if the symbol type is that referencing the GOT. */
bool
i386_gotpc_reloc_check (Elf *elf __attribute__ ((unused)), int type)
{
return type == R_386_GOTPC;
}
/* Check for the simple reloc types. */
Elf_Type
i386_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
{
switch (type)
{
case R_386_32:
return ELF_T_SWORD;
case R_386_16:
return ELF_T_HALF;
case R_386_8:
return ELF_T_BYTE;
default:
return ELF_T_NUM;
}
}
/* Check section name for being that of a debug information section. */
bool (*generic_debugscn_p) (const char *);
bool
i386_debugscn_p (const char *name)
{
return (generic_debugscn_p (name)
|| strcmp (name, ".stab") == 0
|| strcmp (name, ".stabstr") == 0);
}

50
elfutils/backends/i386_syscall.c Normal file
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/* Linux/i386 system call ABI in DWARF register numbers.
Copyright (C) 2008 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND i386_
#include "libebl_CPU.h"
int
i386_syscall_abi (Ebl *ebl __attribute__ ((unused)),
int *sp, int *pc, int *callno, int args[6])
{
*sp = 4; /* %esp */
*pc = 8; /* %eip */
*callno = 0; /* %eax */
args[0] = 3; /* %ebx */
args[1] = 1; /* %ecx */
args[2] = 2; /* %edx */
args[3] = 6; /* %esi */
args[4] = 7; /* %edi */
args[5] = 5; /* %ebp */
return 0;
}

84
elfutils/backends/i386_unwind.c Normal file
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/* Get previous frame state for an existing frame state using frame pointers.
Copyright (C) 2017 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <assert.h>
#define BACKEND i386_
#include "libebl_CPU.h"
/* Register numbers for frame and stack pointers. We take advantage of
them being next to each other when calling getfunc and setfunc. */
#define ESP 4
#define EBP (ESP + 1)
/* Most basic frame pointer chasing with EBP as frame pointer.
PC = *(FP + 4), SP = FP + 8, FP = *FP. */
bool
i386_unwind (Ebl *ebl __attribute__ ((unused)),
Dwarf_Addr pc __attribute__ ((unused)),
ebl_tid_registers_t *setfunc, ebl_tid_registers_get_t *getfunc,
ebl_pid_memory_read_t *readfunc, void *arg,
bool *signal_framep __attribute__ ((unused)))
{
/* sp = 0, fp = 1 */
Dwarf_Word regs[2];
/* Get current stack and frame pointers. */
if (! getfunc (ESP, 2, regs, arg))
return false;
Dwarf_Word sp = regs[0];
Dwarf_Word fp = regs[1];
/* Sanity check. We only support traditional stack frames. */
if (fp == 0 || sp == 0 || fp < sp)
return false;
/* Get the return address from the stack, it is our new pc. */
Dwarf_Word ret_addr;
if (! readfunc (fp + 4, &ret_addr, arg) || ret_addr == 0)
return false;
/* Get new sp and fp. Sanity check again. */
sp = fp + 8;
if (! readfunc (fp, &fp, arg) || fp == 0 || sp >= fp)
return false;
/* Set new sp, fp and pc. */
regs[0] = sp;
regs[1] = fp;
if (! setfunc (ESP, 2, regs, arg) || ! setfunc (-1, 1, &ret_addr, arg))
return false;
return true;
}

66
elfutils/backends/ia64_init.c Normal file
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/* Initialization of IA-64 specific backend library.
Copyright (C) 2002, 2003, 2005, 2006, 2007, 2014 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2002.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND ia64_
#define RELOC_PREFIX R_IA64_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on ia64_reloc.def. */
#include "common-reloc.c"
const char *
ia64_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "Intel IA-64";
ia64_init_reloc (eh);
HOOK (eh, reloc_simple_type);
HOOK (eh, segment_type_name);
HOOK (eh, section_type_name);
HOOK (eh, dynamic_tag_name);
HOOK (eh, dynamic_tag_check);
HOOK (eh, machine_flag_check);
HOOK (eh, machine_section_flag_check);
HOOK (eh, register_info);
HOOK (eh, return_value_location);
HOOK (eh, check_reloc_target_type);
return MODVERSION;
}

273
elfutils/backends/ia64_regs.c Normal file
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/* Register names and numbers for IA64 DWARF.
Copyright (C) 2006 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <dwarf.h>
#define BACKEND i386_
#include "libebl_CPU.h"
ssize_t
ia64_register_info (Ebl *ebl __attribute__ ((unused)),
int regno, char *name, size_t namelen,
const char **prefix, const char **setname,
int *bits, int *type)
{
if (name == NULL)
return 687 + 64;
if (regno < 0 || regno > 687 + 63 || namelen < 12)
return -1;
*prefix = "ar.";
*setname = "application";
*bits = 64;
*type = DW_ATE_signed;
switch (regno)
{
case 0 ... 9:
name[0] = 'r';
name[1] = (regno - 0) + '0';
namelen = 2;
*setname = "integer";
*prefix = "";
break;
case 10 ... 99:
name[0] = 'r';
name[1] = (regno - 0) / 10 + '0';
name[2] = (regno - 0) % 10 + '0';
namelen = 3;
*setname = "integer";
*prefix = "";
break;
case 100 ... 127:
name[0] = 'r';
name[1] = '1';
name[2] = (regno - 100) / 10 + '0';
name[3] = (regno - 0) % 10 + '0';
namelen = 4;
*setname = "integer";
*prefix = "";
break;
case 128 + 0 ... 128 + 9:
name[0] = 'f';
name[1] = (regno - 128) + '0';
namelen = 2;
*type = DW_ATE_float;
*bits = 128;
*setname = "FPU";
*prefix = "";
break;
case 128 + 10 ... 128 + 99:
name[0] = 'f';
name[1] = (regno - 128) / 10 + '0';
name[2] = (regno - 128) % 10 + '0';
namelen = 3;
*setname = "FPU";
*prefix = "";
break;
case 128 + 100 ... 128 + 127:
name[0] = 'f';
name[1] = '1';
name[2] = (regno - 128 - 100) / 10 + '0';
name[3] = (regno - 128) % 10 + '0';
namelen = 4;
*type = DW_ATE_float;
*bits = 128;
*setname = "FPU";
*prefix = "";
break;
case 320 + 0 ... 320 + 7:
name[0] = 'b';
name[1] = (regno - 320) + '0';
namelen = 2;
*type = DW_ATE_address;
*setname = "branch";
*prefix = "";
break;
case 328 ... 333:
{
static const char named_special[][5] =
{
"vfp", "vrap", "pr", "ip", "psr", "cfm"
};
*setname = "special";
*prefix = "";
*type = regno == 331 ? DW_ATE_address : DW_ATE_unsigned;
return stpcpy (name, named_special[regno - 328]) + 1 - name;
}
case 590:
*setname = "special";
*prefix = "";
*type = DW_ATE_unsigned;
return stpcpy (name, "bof") + 1 - name;
case 334 + 0 ... 334 + 7:
name[0] = 'k';
name[1] = 'r';
name[2] = (regno - 334) + '0';
namelen = 3;
*prefix = "";
break;
case 334 + 8 ... 334 + 127:
{
static const char named_ar[][9] =
{
[16 - 8] = "rsc",
[17 - 8] = "bsp",
[18 - 8] = "bspstore",
[19 - 8] = "rnat",
[21 - 8] = "fcr",
[24 - 8] = "eflag",
[25 - 8] = "csd",
[26 - 8] = "ssd",
[27 - 8] = "cflg",
[28 - 8] = "fsr",
[29 - 8] = "fir",
[30 - 8] = "fdr",
[32 - 8] = "ccv",
[36 - 8] = "unat",
[40 - 8] = "fpsr",
[44 - 8] = "itc",
[64 - 8] = "pfs",
[65 - 8] = "lc",
[66 - 8] = "ec",
};
const size_t idx = regno - (334 + 8);
*type = DW_ATE_unsigned;
if (idx == 1 || idx == 2)
*type = DW_ATE_address;
if (idx < sizeof named_ar / sizeof named_ar[0]
&& named_ar[idx][0] != '\0')
return stpcpy (name, named_ar[idx]) + 1 - name;
name[0] = 'a';
name[1] = 'r';
switch (regno - 334)
{
case 0 ... 9:
name[2] = (regno - 334) + '0';
namelen = 3;
break;
case 10 ... 99:
name[2] = (regno - 334) / 10 + '0';
name[3] = (regno - 334) % 10 + '0';
namelen = 4;
break;
case 100 ... 127:
name[2] = '1';
name[3] = (regno - 334 - 100) / 10 + '0';
name[4] = (regno - 334) % 10 + '0';
namelen = 5;
break;
}
*prefix = "";
break;
}
case 462 + 0 ... 462 + 9:
name[0] = 'n';
name[1] = 'a';
name[2] = 't';
name[3] = (regno - 462) + '0';
namelen = 4;
*setname = "NAT";
*type = DW_ATE_boolean;
*bits = 1;
*prefix = "";
break;
case 462 + 10 ... 462 + 99:
name[0] = 'n';
name[1] = 'a';
name[2] = 't';
name[3] = (regno - 462) / 10 + '0';
name[4] = (regno - 462) % 10 + '0';
namelen = 5;
*setname = "NAT";
*type = DW_ATE_boolean;
*bits = 1;
*prefix = "";
break;
case 462 + 100 ... 462 + 127:
name[0] = 'n';
name[1] = 'a';
name[2] = 't';
name[3] = '1';
name[4] = (regno - 462 - 100) / 10 + '0';
name[5] = (regno - 462) % 10 + '0';
namelen = 6;
*setname = "NAT";
*type = DW_ATE_boolean;
*bits = 1;
*prefix = "";
break;
case 687 + 0 ... 687 + 9:
name[0] = 'p';
name[1] = (regno - 687) + '0';
namelen = 2;
*setname = "predicate";
*type = DW_ATE_boolean;
*bits = 1;
*prefix = "";
break;
case 687 + 10 ... 687 + 63:
name[0] = 'p';
name[1] = (regno - 687) / 10 + '0';
name[2] = (regno - 687) % 10 + '0';
namelen = 3;
*setname = "predicate";
*type = DW_ATE_boolean;
*bits = 1;
*prefix = "";
break;
default:
*setname = NULL;
return 0;
}
name[namelen++] = '\0';
return namelen;
}

113
elfutils/backends/ia64_reloc.def Normal file
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/* List the relocation types for ia64. -*- C -*-
Copyright (C) 2005, 2006, 2015 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (NONE, 0)
RELOC_TYPE (IMM14, REL)
RELOC_TYPE (IMM22, REL)
RELOC_TYPE (IMM64, REL)
RELOC_TYPE (DIR32MSB, REL|EXEC|DYN)
RELOC_TYPE (DIR32LSB, REL|EXEC|DYN)
RELOC_TYPE (DIR64MSB, REL|EXEC|DYN)
RELOC_TYPE (DIR64LSB, REL|EXEC|DYN)
RELOC_TYPE (GPREL22, REL)
RELOC_TYPE (GPREL64I, REL)
RELOC_TYPE (GPREL32MSB, REL)
RELOC_TYPE (GPREL32LSB, REL)
RELOC_TYPE (GPREL64MSB, REL)
RELOC_TYPE (GPREL64LSB, REL)
RELOC_TYPE (LTOFF22, REL)
RELOC_TYPE (LTOFF64I, REL)
RELOC_TYPE (PLTOFF22, REL)
RELOC_TYPE (PLTOFF64I, REL)
RELOC_TYPE (PLTOFF64MSB, REL)
RELOC_TYPE (PLTOFF64LSB, REL)
RELOC_TYPE (FPTR64I, REL)
RELOC_TYPE (FPTR32MSB, REL|EXEC|DYN)
RELOC_TYPE (FPTR32LSB, REL|EXEC|DYN)
RELOC_TYPE (FPTR64MSB, REL|EXEC|DYN)
RELOC_TYPE (FPTR64LSB, REL|EXEC|DYN)
RELOC_TYPE (PCREL60B, REL)
RELOC_TYPE (PCREL21B, REL)
RELOC_TYPE (PCREL21M, REL)
RELOC_TYPE (PCREL21F, REL)
RELOC_TYPE (PCREL32MSB, REL|EXEC|DYN)
RELOC_TYPE (PCREL32LSB, REL|EXEC|DYN)
RELOC_TYPE (PCREL64MSB, REL|EXEC|DYN)
RELOC_TYPE (PCREL64LSB, REL|EXEC|DYN)
RELOC_TYPE (LTOFF_FPTR22, REL)
RELOC_TYPE (LTOFF_FPTR64I, REL)
RELOC_TYPE (LTOFF_FPTR32MSB, REL)
RELOC_TYPE (LTOFF_FPTR32LSB, REL)
RELOC_TYPE (LTOFF_FPTR64MSB, REL)
RELOC_TYPE (LTOFF_FPTR64LSB, REL)
RELOC_TYPE (SEGREL32MSB, REL)
RELOC_TYPE (SEGREL32LSB, REL)
RELOC_TYPE (SEGREL64MSB, REL)
RELOC_TYPE (SEGREL64LSB, REL)
RELOC_TYPE (SECREL32MSB, REL)
RELOC_TYPE (SECREL32LSB, REL)
RELOC_TYPE (SECREL64MSB, REL)
RELOC_TYPE (SECREL64LSB, REL)
RELOC_TYPE (REL32MSB, EXEC|DYN)
RELOC_TYPE (REL32LSB, EXEC|DYN)
RELOC_TYPE (REL64MSB, EXEC|DYN)
RELOC_TYPE (REL64LSB, EXEC|DYN)
RELOC_TYPE (LTV32MSB, REL)
RELOC_TYPE (LTV32LSB, REL)
RELOC_TYPE (LTV64MSB, REL)
RELOC_TYPE (LTV64LSB, REL)
RELOC_TYPE (PCREL21BI, REL)
RELOC_TYPE (PCREL22, REL)
RELOC_TYPE (PCREL64I, REL)
RELOC_TYPE (IPLTMSB, REL|EXEC|DYN)
RELOC_TYPE (IPLTLSB, REL|EXEC|DYN)
RELOC_TYPE (COPY, EXEC|DYN)
RELOC_TYPE (SUB, 0)
RELOC_TYPE (LTOFF22X, REL)
RELOC_TYPE (LDXMOV, REL)
RELOC_TYPE (TPREL14, REL)
RELOC_TYPE (TPREL22, REL)
RELOC_TYPE (TPREL64I, REL)
RELOC_TYPE (TPREL64MSB, REL|EXEC|DYN)
RELOC_TYPE (TPREL64LSB, REL|EXEC|DYN)
RELOC_TYPE (LTOFF_TPREL22, REL)
RELOC_TYPE (DTPMOD64MSB, REL|EXEC|DYN)
RELOC_TYPE (DTPMOD64LSB, REL|EXEC|DYN)
RELOC_TYPE (LTOFF_DTPMOD22, REL)
RELOC_TYPE (DTPREL14, REL)
RELOC_TYPE (DTPREL22, REL)
RELOC_TYPE (DTPREL64I, REL)
RELOC_TYPE (DTPREL32MSB, REL|EXEC|DYN)
RELOC_TYPE (DTPREL32LSB, REL|EXEC|DYN)
RELOC_TYPE (DTPREL64MSB, REL|EXEC|DYN)
RELOC_TYPE (DTPREL64LSB, REL|EXEC|DYN)
RELOC_TYPE (LTOFF_DTPREL22, REL)
#define NO_RELATIVE_RELOC 1

366
elfutils/backends/ia64_retval.c Normal file
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/* Function return value location for IA64 ABI.
Copyright (C) 2006-2010, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <dwarf.h>
#define BACKEND ia64_
#include "libebl_CPU.h"
/* r8, or pair r8, r9, or aggregate up to r8-r11. */
static const Dwarf_Op loc_intreg[] =
{
{ .atom = DW_OP_reg8 }, { .atom = DW_OP_piece, .number = 8 },
{ .atom = DW_OP_reg9 }, { .atom = DW_OP_piece, .number = 8 },
{ .atom = DW_OP_reg10 }, { .atom = DW_OP_piece, .number = 8 },
{ .atom = DW_OP_reg11 }, { .atom = DW_OP_piece, .number = 8 },
};
#define nloc_intreg 1
#define nloc_intregs(n) (2 * (n))
/* f8, or aggregate up to f8-f15. */
#define DEFINE_FPREG(size) \
static const Dwarf_Op loc_fpreg_##size[] = \
{ \
{ .atom = DW_OP_regx, .number = 128 + 8 }, \
{ .atom = DW_OP_piece, .number = size }, \
{ .atom = DW_OP_regx, .number = 128 + 9 }, \
{ .atom = DW_OP_piece, .number = size }, \
{ .atom = DW_OP_regx, .number = 128 + 10 }, \
{ .atom = DW_OP_piece, .number = size }, \
{ .atom = DW_OP_regx, .number = 128 + 11 }, \
{ .atom = DW_OP_piece, .number = size }, \
{ .atom = DW_OP_regx, .number = 128 + 12 }, \
{ .atom = DW_OP_piece, .number = size }, \
{ .atom = DW_OP_regx, .number = 128 + 13 }, \
{ .atom = DW_OP_piece, .number = size }, \
{ .atom = DW_OP_regx, .number = 128 + 14 }, \
{ .atom = DW_OP_piece, .number = size }, \
{ .atom = DW_OP_regx, .number = 128 + 15 }, \
{ .atom = DW_OP_piece, .number = size }, \
}
#define nloc_fpreg 1
#define nloc_fpregs(n) (2 * (n))
DEFINE_FPREG (4);
DEFINE_FPREG (8);
DEFINE_FPREG (10);
#undef DEFINE_FPREG
/* The return value is a structure and is actually stored in stack space
passed in a hidden argument by the caller. But, the compiler
helpfully returns the address of that space in r8. */
static const Dwarf_Op loc_aggregate[] =
{
{ .atom = DW_OP_breg8, .number = 0 }
};
#define nloc_aggregate 1
static inline int
compute_hfa (const Dwarf_Op *loc, int nregs,
const Dwarf_Op **locp, int fpregs_used)
{
if (fpregs_used == 0)
*locp = loc;
else if (*locp != loc)
return 9;
return fpregs_used + nregs;
}
/* If this type is an HFA small enough to be returned in FP registers,
return the number of registers to use. Otherwise 9, or -1 for errors. */
static int
hfa_type (Dwarf_Die *typedie, Dwarf_Word size,
const Dwarf_Op **locp, int fpregs_used)
{
/* Descend the type structure, counting elements and finding their types.
If we find a datum that's not an FP type (and not quad FP), punt.
If we find a datum that's not the same FP type as the first datum, punt.
If we count more than eight total homogeneous FP data, punt. */
int tag = DWARF_TAG_OR_RETURN (typedie);
switch (tag)
{
Dwarf_Attribute attr_mem;
case -1:
return -1;
case DW_TAG_base_type:;
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
&attr_mem), &encoding) != 0)
return -1;
#define hfa(loc, nregs) compute_hfa(loc, nregs, locp, fpregs_used)
switch (encoding)
{
case DW_ATE_float:
switch (size)
{
case 4: /* float */
return hfa (loc_fpreg_4, 1);
case 8: /* double */
return hfa (loc_fpreg_8, 1);
case 10: /* x86-style long double, not really used */
return hfa (loc_fpreg_10, 1);
}
break;
case DW_ATE_complex_float:
switch (size)
{
case 4 * 2: /* complex float */
return hfa (loc_fpreg_4, 2);
case 8 * 2: /* complex double */
return hfa (loc_fpreg_8, 2);
case 10 * 2: /* complex long double (x86-style) */
return hfa (loc_fpreg_10, 2);
}
break;
}
break;
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:;
Dwarf_Die child_mem;
switch (dwarf_child (typedie, &child_mem))
{
default:
return -1;
case 1: /* No children: empty struct. */
break;
case 0:; /* Look at each element. */
int max_used = fpregs_used;
do
switch (dwarf_tag (&child_mem))
{
case -1:
return -1;
case DW_TAG_member:;
Dwarf_Die child_type_mem;
Dwarf_Die *child_typedie
= dwarf_formref_die (dwarf_attr_integrate (&child_mem,
DW_AT_type,
&attr_mem),
&child_type_mem);
Dwarf_Word child_size;
if (dwarf_aggregate_size (child_typedie, &child_size) != 0)
return -1;
if (tag == DW_TAG_union_type)
{
int used = hfa_type (child_typedie, child_size,
locp, fpregs_used);
if (used < 0 || used > 8)
return used;
if (used > max_used)
max_used = used;
}
else
{
fpregs_used = hfa_type (child_typedie, child_size,
locp, fpregs_used);
if (fpregs_used < 0 || fpregs_used > 8)
return fpregs_used;
}
}
while (dwarf_siblingof (&child_mem, &child_mem) == 0);
if (tag == DW_TAG_union_type)
fpregs_used = max_used;
break;
}
break;
case DW_TAG_array_type:
if (size == 0)
break;
Dwarf_Die base_type_mem;
Dwarf_Die *base_typedie
= dwarf_formref_die (dwarf_attr_integrate (typedie, DW_AT_type,
&attr_mem),
&base_type_mem);
Dwarf_Word base_size;
if (dwarf_aggregate_size (base_typedie, &base_size) != 0)
return -1;
int used = hfa_type (base_typedie, base_size, locp, 0);
if (used < 0 || used > 8)
return used;
if (size % (*locp)[1].number != 0)
return 0;
fpregs_used += used * (size / (*locp)[1].number);
break;
default:
return 9;
}
return fpregs_used;
}
int
ia64_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
Dwarf_Die die_mem, *typedie = &die_mem;
int tag = dwarf_peeled_die_type (functypedie, typedie);
if (tag <= 0)
return tag;
Dwarf_Word size;
switch (tag)
{
case -1:
return -1;
case DW_TAG_subrange_type:
if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
{
Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
/* Fall through. */
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
{
Dwarf_Attribute attr_mem;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
&attr_mem), &size) != 0)
{
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
size = 8;
else
return -1;
}
}
if (tag == DW_TAG_base_type)
{
Dwarf_Attribute attr_mem;
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
&attr_mem),
&encoding) != 0)
return -1;
switch (encoding)
{
case DW_ATE_float:
switch (size)
{
case 4: /* float */
*locp = loc_fpreg_4;
return nloc_fpreg;
case 8: /* double */
*locp = loc_fpreg_8;
return nloc_fpreg;
case 10: /* x86-style long double, not really used */
*locp = loc_fpreg_10;
return nloc_fpreg;
case 16: /* long double, IEEE quad format */
*locp = loc_intreg;
return nloc_intregs (2);
}
return -2;
case DW_ATE_complex_float:
switch (size)
{
case 4 * 2: /* complex float */
*locp = loc_fpreg_4;
return nloc_fpregs (2);
case 8 * 2: /* complex double */
*locp = loc_fpreg_8;
return nloc_fpregs (2);
case 10 * 2: /* complex long double (x86-style) */
*locp = loc_fpreg_10;
return nloc_fpregs (2);
case 16 * 2: /* complex long double (IEEE quad) */
*locp = loc_intreg;
return nloc_intregs (4);
}
return -2;
}
}
intreg:
*locp = loc_intreg;
if (size <= 8)
return nloc_intreg;
if (size <= 32)
return nloc_intregs ((size + 7) / 8);
large:
*locp = loc_aggregate;
return nloc_aggregate;
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
case DW_TAG_array_type:
if (dwarf_aggregate_size (typedie, &size) != 0)
return -1;
/* If this qualifies as an homogeneous floating-point aggregate
(HFA), then it should be returned in FP regs. */
int nfpreg = hfa_type (typedie, size, locp, 0);
if (nfpreg < 0)
return nfpreg;
else if (nfpreg > 0 && nfpreg <= 8)
return nfpreg == 1 ? nloc_fpreg : nloc_fpregs (nfpreg);
if (size > 32)
goto large;
goto intreg;
}
/* XXX We don't have a good way to return specific errors from ebl calls.
This value means we do not understand the type, but it is well-formed
DWARF and might be valid. */
return -2;
}

157
elfutils/backends/ia64_symbol.c Normal file
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/* IA-64 specific symbolic name handling.
Copyright (C) 2002-2009, 2014 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2002.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <stddef.h>
#include <assert.h>
#define BACKEND ia64_
#include "libebl_CPU.h"
const char *
ia64_segment_type_name (int segment, char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
switch (segment)
{
case PT_IA_64_ARCHEXT:
return "IA_64_ARCHEXT";
case PT_IA_64_UNWIND:
return "IA_64_UNWIND";
case PT_IA_64_HP_OPT_ANOT:
return "IA_64_HP_OPT_ANOT";
case PT_IA_64_HP_HSL_ANOT:
return "IA_64_HP_HSL_ANOT";
case PT_IA_64_HP_STACK:
return "IA_64_HP_STACK";
default:
break;
}
return NULL;
}
const char *
ia64_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
switch (tag)
{
case DT_IA_64_PLT_RESERVE:
return "IA_64_PLT_RESERVE";
default:
break;
}
return NULL;
}
/* Check dynamic tag. */
bool
ia64_dynamic_tag_check (int64_t tag)
{
return tag == DT_IA_64_PLT_RESERVE;
}
/* Check whether machine flags are valid. */
bool
ia64_machine_flag_check (GElf_Word flags)
{
return ((flags &~ EF_IA_64_ABI64) == 0);
}
/* Check whether SHF_MASKPROC flags are valid. */
bool
ia64_machine_section_flag_check (GElf_Xword sh_flags)
{
return (sh_flags &~ (SHF_IA_64_SHORT | SHF_IA_64_NORECOV)) == 0;
}
/* Return symbolic representation of section type. */
const char *
ia64_section_type_name (int type,
char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
switch (type)
{
case SHT_IA_64_EXT:
return "IA_64_EXT";
case SHT_IA_64_UNWIND:
return "IA_64_UNWIND";
}
return NULL;
}
/* Check for the simple reloc types. */
Elf_Type
ia64_reloc_simple_type (Ebl *ebl, int type)
{
switch (type)
{
/* The SECREL types when used with non-allocated sections
like .debug_* are the same as direct absolute relocs
applied to those sections, since a 0 section address is assumed.
So we treat them the same here. */
case R_IA64_SECREL32MSB:
case R_IA64_DIR32MSB:
if (ebl->data == ELFDATA2MSB)
return ELF_T_WORD;
break;
case R_IA64_SECREL32LSB:
case R_IA64_DIR32LSB:
if (ebl->data == ELFDATA2LSB)
return ELF_T_WORD;
break;
case R_IA64_DIR64MSB:
case R_IA64_SECREL64MSB:
if (ebl->data == ELFDATA2MSB)
return ELF_T_XWORD;
break;
case R_IA64_SECREL64LSB:
case R_IA64_DIR64LSB:
if (ebl->data == ELFDATA2LSB)
return ELF_T_XWORD;
break;
}
return ELF_T_NUM;
}
/* The SHT_IA_64_UNWIND section type is a valid target for relocation. */
bool
ia64_check_reloc_target_type (Ebl *ebl __attribute__ ((unused)), Elf64_Word sh_type)
{
return sh_type == SHT_IA_64_UNWIND;
}

76
elfutils/backends/libebl_CPU.h Normal file
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/* Common interface for libebl modules.
Copyright (C) 2000, 2001, 2002, 2003, 2005, 2013, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifndef _LIBEBL_CPU_H
#define _LIBEBL_CPU_H 1
#include <dwarf.h>
#include <libeblP.h>
#define EBLHOOK(name) EBLHOOK_1(BACKEND, name)
#define EBLHOOK_1(a, b) EBLHOOK_2(a, b)
#define EBLHOOK_2(a, b) a##b
/* Constructor. */
extern const char *EBLHOOK(init) (Elf *elf, GElf_Half machine,
Ebl *eh, size_t ehlen);
#include "ebl-hooks.h"
#define HOOK(eh, name) eh->name = EBLHOOK(name)
extern bool (*generic_debugscn_p) (const char *) attribute_hidden;
/* Helper for retval. Return dwarf_tag (die), but calls return -1
if there where previous errors that leave die NULL. */
#define DWARF_TAG_OR_RETURN(die) \
({ Dwarf_Die *_die = (die); \
if (_die == NULL) return -1; \
dwarf_tag (_die); })
/* Get a type die corresponding to DIE. Peel CV qualifiers off
it. */
static inline int
dwarf_peeled_die_type (Dwarf_Die *die, Dwarf_Die *result)
{
Dwarf_Attribute attr_mem;
Dwarf_Attribute *attr = dwarf_attr_integrate (die, DW_AT_type, &attr_mem);
if (attr == NULL)
/* The function has no return value, like a `void' function in C. */
return 0;
if (dwarf_formref_die (attr, result) == NULL)
return -1;
if (dwarf_peel_type (result, result) != 0)
return -1;
return DWARF_TAG_OR_RETURN (result);
}
#endif /* libebl_CPU.h */

315
elfutils/backends/linux-core-note.c Normal file
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/* Common core note type descriptions for Linux.
Copyright (C) 2007-2010 Red Hat, Inc.
Copyright (C) H.J. Lu <hjl.tools@gmail.com>, 2015.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#include <string.h>
/* The including CPU_corenote.c file provides prstatus_regs and
defines macros ULONG, [PUG]ID_T, and ALIGN_*, TYPE_*.
Here we describe the common layout used in <linux/elfcore.h>. */
#define CHAR int8_t
#define ALIGN_CHAR 1
#define TYPE_CHAR ELF_T_BYTE
#define SHORT uint16_t
#define ALIGN_SHORT 2
#define TYPE_SHORT ELF_T_HALF
#define INT int32_t
#ifndef ALIGN_INT
# define ALIGN_INT 4
#endif
#define TYPE_INT ELF_T_SWORD
#ifndef PR_REG
# define PR_REG ULONG
#endif
#ifndef ALIGN_PR_REG
# define ALIGN_PR_REG ALIGN_ULONG
#endif
#ifndef PRPSINFO_UID_T
# define PRPSINFO_UID_T UID_T
# define ALIGN_PRPSINFO_UID_T ALIGN_UID_T
# define TYPE_PRPSINFO_UID_T TYPE_UID_T
#endif
#ifndef PRPSINFO_GID_T
# define PRPSINFO_GID_T GID_T
# define ALIGN_PRPSINFO_GID_T ALIGN_GID_T
# define TYPE_PRPSINFO_GID_T TYPE_GID_T
#endif
#define FIELD(type, name) type name __attribute__ ((aligned (ALIGN_##type)))
struct EBLHOOK(siginfo)
{
FIELD (INT, si_signo);
FIELD (INT, si_code);
FIELD (INT, si_errno);
};
struct EBLHOOK(timeval)
{
FIELD (ULONG, tv_sec);
FIELD (ULONG, tv_usec);
};
/* On sparc64, tv_usec (suseconds_t) is actually 32 bits with 32 bits padding.
The 'T'|0x80 value for .format indicates this as a special kludge. */
#if SUSECONDS_HALF
# define TIMEVAL_FIELD(name) FIELD (time, ULONG, name, 'T'|0x80, .count = 2)
#else
# define TIMEVAL_FIELD(name) FIELD (time, ULONG, name, 'T', .count = 2)
#endif
struct EBLHOOK(prstatus)
{
struct EBLHOOK(siginfo) pr_info;
FIELD (SHORT, pr_cursig);
FIELD (ULONG, pr_sigpend);
FIELD (ULONG, pr_sighold);
FIELD (PID_T, pr_pid);
FIELD (PID_T, pr_ppid);
FIELD (PID_T, pr_pgrp);
FIELD (PID_T, pr_sid);
struct EBLHOOK(timeval) pr_utime;
struct EBLHOOK(timeval) pr_stime;
struct EBLHOOK(timeval) pr_cutime;
struct EBLHOOK(timeval) pr_cstime;
struct
{
FIELD (PR_REG, pr_reg[PRSTATUS_REGS_SIZE / sizeof (PR_REG)]);
}
#ifdef ALIGN_PR_REG
__attribute__ ((aligned (ALIGN_PR_REG)))
#endif
;
FIELD (INT, pr_fpvalid);
}
#ifdef ALIGN_PRSTATUS
__attribute__ ((packed, aligned (ALIGN_PRSTATUS)))
#endif
;
#define FNAMESZ 16
#define PRARGSZ 80
struct EBLHOOK(prpsinfo)
{
FIELD (CHAR, pr_state);
FIELD (CHAR, pr_sname);
FIELD (CHAR, pr_zomb);
FIELD (CHAR, pr_nice);
FIELD (ULONG, pr_flag);
FIELD (PRPSINFO_UID_T, pr_uid);
FIELD (PRPSINFO_GID_T, pr_gid);
FIELD (PID_T, pr_pid);
FIELD (PID_T, pr_ppid);
FIELD (PID_T, pr_pgrp);
FIELD (PID_T, pr_sid);
FIELD (CHAR, pr_fname[FNAMESZ]);
FIELD (CHAR, pr_psargs[PRARGSZ]);
};
#undef FIELD
#define FIELD(igroup, itype, item, fmt, ...) \
{ \
.name = #item, \
.group = #igroup, \
.offset = offsetof (struct EBLHOOK(prstatus), pr_##item), \
.type = TYPE_##itype, \
.format = fmt, \
__VA_ARGS__ \
}
static const Ebl_Core_Item prstatus_items[] =
{
FIELD (signal, INT, info.si_signo, 'd'),
FIELD (signal, INT, info.si_code, 'd'),
FIELD (signal, INT, info.si_errno, 'd'),
FIELD (signal, SHORT, cursig, 'd'),
/* Use different group name for a newline delimiter. */
FIELD (signal2, ULONG, sigpend, 'B'),
FIELD (signal3, ULONG, sighold, 'B'),
FIELD (identity, PID_T, pid, 'd', .thread_identifier = true),
FIELD (identity, PID_T, ppid, 'd'),
FIELD (identity, PID_T, pgrp, 'd'),
FIELD (identity, PID_T, sid, 'd'),
TIMEVAL_FIELD (utime),
TIMEVAL_FIELD (stime),
TIMEVAL_FIELD (cutime),
TIMEVAL_FIELD (cstime),
#ifdef PRSTATUS_REGSET_ITEMS
PRSTATUS_REGSET_ITEMS,
#endif
FIELD (register, INT, fpvalid, 'd'),
};
#undef FIELD
#define FIELD(igroup, itype, item, fmt, ...) \
{ \
.name = #item, \
.group = #igroup, \
.offset = offsetof (struct EBLHOOK(prpsinfo), pr_##item), \
.type = TYPE_##itype, \
.format = fmt, \
__VA_ARGS__ \
}
static const Ebl_Core_Item prpsinfo_items[] =
{
FIELD (state, CHAR, state, 'd'),
FIELD (state, CHAR, sname, 'c'),
FIELD (state, CHAR, zomb, 'd'),
FIELD (state, CHAR, nice, 'd'),
FIELD (state, ULONG, flag, 'x'),
FIELD (identity, PRPSINFO_UID_T, uid, 'd'),
FIELD (identity, PRPSINFO_GID_T, gid, 'd'),
FIELD (identity, PID_T, pid, 'd'),
FIELD (identity, PID_T, ppid, 'd'),
FIELD (identity, PID_T, pgrp, 'd'),
FIELD (identity, PID_T, sid, 'd'),
FIELD (command, CHAR, fname, 's', .count = FNAMESZ),
FIELD (command, CHAR, psargs, 's', .count = PRARGSZ),
};
static const Ebl_Core_Item vmcoreinfo_items[] =
{
{
.type = ELF_T_BYTE, .format = '\n'
}
};
#undef FIELD
int
EBLHOOK(core_note) (const GElf_Nhdr *nhdr, const char *name,
GElf_Word *regs_offset, size_t *nregloc,
const Ebl_Register_Location **reglocs,
size_t *nitems, const Ebl_Core_Item **items)
{
switch (nhdr->n_namesz)
{
case sizeof "CORE" - 1: /* Buggy old Linux kernels. */
if (memcmp (name, "CORE", nhdr->n_namesz) == 0)
break;
return 0;
case sizeof "CORE":
if (memcmp (name, "CORE", nhdr->n_namesz) == 0)
break;
/* Buggy old Linux kernels didn't terminate "LINUX". */
/* Fall through. */
case sizeof "LINUX":
if (memcmp (name, "LINUX", nhdr->n_namesz) == 0)
break;
return 0;
case sizeof "VMCOREINFO":
if (nhdr->n_type != 0
|| memcmp (name, "VMCOREINFO", sizeof "VMCOREINFO") != 0)
return 0;
*regs_offset = 0;
*nregloc = 0;
*nitems = 1;
*items = vmcoreinfo_items;
return 1;
default:
return 0;
}
switch (nhdr->n_type)
{
case NT_PRSTATUS:
if (nhdr->n_descsz != sizeof (struct EBLHOOK(prstatus)))
return 0;
*regs_offset = offsetof (struct EBLHOOK(prstatus), pr_reg);
*nregloc = sizeof prstatus_regs / sizeof prstatus_regs[0];
*reglocs = prstatus_regs;
*nitems = sizeof prstatus_items / sizeof prstatus_items[0];
*items = prstatus_items;
return 1;
case NT_PRPSINFO:
if (nhdr->n_descsz != sizeof (struct EBLHOOK(prpsinfo)))
return 0;
*regs_offset = 0;
*nregloc = 0;
*reglocs = NULL;
*nitems = sizeof prpsinfo_items / sizeof prpsinfo_items[0];
*items = prpsinfo_items;
return 1;
#define EXTRA_REGSET(type, size, table) \
case type: \
if (nhdr->n_descsz != size) \
return 0; \
*regs_offset = 0; \
*nregloc = sizeof table / sizeof table[0]; \
*reglocs = table; \
*nitems = 0; \
*items = NULL; \
return 1;
#define EXTRA_REGSET_ITEMS(type, size, table, extra_items) \
case type: \
if (nhdr->n_descsz != size) \
return 0; \
*regs_offset = 0; \
*nregloc = sizeof table / sizeof table[0]; \
*reglocs = table; \
*nitems = sizeof extra_items / sizeof extra_items[0]; \
*items = extra_items; \
return 1;
#define EXTRA_ITEMS(type, size, extra_items) \
case type: \
if (nhdr->n_descsz != size) \
return 0; \
*regs_offset = 0; \
*nregloc = 0; \
*reglocs = NULL; \
*nitems = sizeof extra_items / sizeof extra_items[0]; \
*items = extra_items; \
return 1;
#ifdef FPREGSET_SIZE
EXTRA_REGSET (NT_FPREGSET, FPREGSET_SIZE, fpregset_regs)
#endif
#ifdef EXTRA_NOTES
EXTRA_NOTES
#endif
}
return 0;
}

72
elfutils/backends/m68k_corenote.c Normal file
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/* M68K specific core note handling.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <inttypes.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/time.h>
#define BACKEND m68k_
#include "libebl_CPU.h"
static const Ebl_Register_Location prstatus_regs[] =
{
{ .offset = 0, .regno = 1, .count = 14, .bits = 32 }, /* d1-d7, a0-a6 */
{ .offset = 14 * 4, .regno = 0, .count = 1, .bits = 32 }, /* d0 */
{ .offset = 15 * 4, .regno = 15, .count = 1, .bits = 32 }, /* a7 */
{ .offset = 18 * 4, .regno = 24, .count = 1, .bits = 32 } /* pc */
};
#define PRSTATUS_REGS_SIZE (20 * 4)
#define ULONG uint32_t
#define PID_T int32_t
#define UID_T uint16_t
#define GID_T uint16_t
#define ALIGN_INT 2
#define ALIGN_ULONG 2
#define ALIGN_PID_T 2
#define ALIGN_UID_T 2
#define ALIGN_GID_T 2
#define ALIGN_PRSTATUS 2
#define TYPE_ULONG ELF_T_WORD
#define TYPE_PID_T ELF_T_SWORD
#define TYPE_UID_T ELF_T_HALF
#define TYPE_GID_T ELF_T_HALF
static const Ebl_Register_Location fpregset_regs[] =
{
{ .offset = 0, .regno = 16, .count = 8, .bits = 96 }, /* fp0-fp7 */
};
#define FPREGSET_SIZE (27 * 4)
#include "linux-core-note.c"

60
elfutils/backends/m68k_init.c Normal file
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/* Initialization of M68K specific backend library.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND m68k_
#define RELOC_PREFIX R_68K_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on m68k_reloc.def. */
#include "common-reloc.c"
const char *
m68k_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "M68K";
m68k_init_reloc (eh);
HOOK (eh, gotpc_reloc_check);
HOOK (eh, reloc_simple_type);
HOOK (eh, return_value_location);
HOOK (eh, register_info);
HOOK (eh, core_note);
return MODVERSION;
}

96
elfutils/backends/m68k_regs.c Normal file
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/* Register names and numbers for M68K DWARF.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <dwarf.h>
#define BACKEND m68k_
#include "libebl_CPU.h"
ssize_t
m68k_register_info (Ebl *ebl __attribute__ ((unused)),
int regno, char *name, size_t namelen,
const char **prefix, const char **setname,
int *bits, int *type)
{
if (name == NULL)
return 25;
if (regno < 0 || regno > 24 || namelen < 5)
return -1;
*prefix = "%";
*setname = "integer";
*bits = 32;
switch (regno)
{
case 0 ... 7:
*type = DW_ATE_signed;
name[0] = 'd';
name[1] = regno + '0';
namelen = 2;
break;
case 8 ... 15:
*type = DW_ATE_address;
name[0] = 'a';
name[1] = regno - 8 + '0';
namelen = 2;
break;
case 16 ... 23:
*type = DW_ATE_float;
*setname = "FPU";
*bits = 96;
name[0] = 'f';
name[1] = 'p';
name[2] = regno - 16 + '0';
namelen = 3;
break;
case 24:
*type = DW_ATE_address;
name[0] = 'p';
name[1] = 'c';
namelen = 2;
break;
/* Can't happen. */
default:
*setname = NULL;
return 0;
}
name[namelen++] = '\0';
return namelen;
}

70
elfutils/backends/m68k_reloc.def Normal file
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/* List the relocation types for m68k. -*- C -*-
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (NONE, EXEC|DYN)
RELOC_TYPE (32, REL|EXEC|DYN)
RELOC_TYPE (16, REL|EXEC|DYN)
RELOC_TYPE (8, REL|EXEC|DYN)
RELOC_TYPE (PC32, REL|EXEC|DYN)
RELOC_TYPE (PC16, REL|EXEC|DYN)
RELOC_TYPE (PC8, REL|EXEC|DYN)
RELOC_TYPE (GOT32, REL)
RELOC_TYPE (GOT16, REL)
RELOC_TYPE (GOT8, REL)
RELOC_TYPE (GOT32O, REL)
RELOC_TYPE (GOT16O, REL)
RELOC_TYPE (GOT8O, REL)
RELOC_TYPE (PLT32, REL)
RELOC_TYPE (PLT16, REL)
RELOC_TYPE (PLT8, REL)
RELOC_TYPE (PLT32O, REL)
RELOC_TYPE (PLT16O, REL)
RELOC_TYPE (PLT8O, REL)
RELOC_TYPE (COPY, EXEC|DYN)
RELOC_TYPE (GLOB_DAT, EXEC|DYN)
RELOC_TYPE (JMP_SLOT, EXEC|DYN)
RELOC_TYPE (RELATIVE, EXEC|DYN)
RELOC_TYPE (TLS_GD32, REL)
RELOC_TYPE (TLS_GD16, REL)
RELOC_TYPE (TLS_GD8, REL)
RELOC_TYPE (TLS_LDM32, REL)
RELOC_TYPE (TLS_LDM16, REL)
RELOC_TYPE (TLS_LDM8, REL)
RELOC_TYPE (TLS_LDO32, REL)
RELOC_TYPE (TLS_LDO16, REL)
RELOC_TYPE (TLS_LDO8, REL)
RELOC_TYPE (TLS_IE32, REL)
RELOC_TYPE (TLS_IE16, REL)
RELOC_TYPE (TLS_IE8, REL)
RELOC_TYPE (TLS_LE32, REL)
RELOC_TYPE (TLS_LE16, REL)
RELOC_TYPE (TLS_LE8, REL)
RELOC_TYPE (TLS_DTPMOD32, EXEC|DYN)
RELOC_TYPE (TLS_DTPREL32, EXEC|DYN)
RELOC_TYPE (TLS_TPREL32, EXEC|DYN)

151
elfutils/backends/m68k_retval.c Normal file
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/* Function return value location for Linux/m68k ABI.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <dwarf.h>
#define BACKEND m68k_
#include "libebl_CPU.h"
/* %d0, or pair %d0, %d1. */
static const Dwarf_Op loc_intreg[] =
{
{ .atom = DW_OP_reg0 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_reg1 }, { .atom = DW_OP_piece, .number = 4 },
};
#define nloc_intreg 1
#define nloc_intregpair 4
/* %a0. */
static const Dwarf_Op loc_ptrreg[] =
{
{ .atom = DW_OP_reg8 }
};
#define nloc_ptrreg 1
/* %fp0. */
static const Dwarf_Op loc_fpreg[] =
{
{ .atom = DW_OP_reg16 }
};
#define nloc_fpreg 1
/* The return value is a structure and is actually stored in stack space
passed in a hidden argument by the caller. But, the compiler
helpfully returns the address of that space in %a0. */
static const Dwarf_Op loc_aggregate[] =
{
{ .atom = DW_OP_reg8 }
};
#define nloc_aggregate 1
int
m68k_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
Dwarf_Die die_mem, *typedie = &die_mem;
int tag = dwarf_peeled_die_type (functypedie, typedie);
if (tag <= 0)
return tag;
switch (tag)
{
case -1:
return -1;
case DW_TAG_subrange_type:
if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
{
Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
/* Fall through. */
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
{
Dwarf_Word size;
Dwarf_Attribute attr_mem;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
&attr_mem), &size) != 0)
{
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
size = 4;
else
return -1;
}
if (tag == DW_TAG_base_type)
{
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
&attr_mem),
&encoding) != 0)
return -1;
if (encoding == DW_ATE_float)
{
if (size > 12)
return -2;
*locp = loc_fpreg;
return nloc_fpreg;
}
}
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
{
*locp = loc_ptrreg;
return nloc_ptrreg;
}
*locp = loc_intreg;
if (size <= 4)
return nloc_intreg;
if (size <= 8)
return nloc_intregpair;
}
/* Fallthrough */
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
case DW_TAG_array_type:
*locp = loc_aggregate;
return nloc_aggregate;
}
/* XXX We don't have a good way to return specific errors from ebl calls.
This value means we do not understand the type, but it is well-formed
DWARF and might be valid. */
return -2;
}

70
elfutils/backends/m68k_symbol.c Normal file
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/* m68k specific symbolic name handling.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <elf.h>
#include <stddef.h>
#include <string.h>
#define BACKEND m68k_
#include "libebl_CPU.h"
/* Return true if the symbol type is that referencing the GOT. */
bool
m68k_gotpc_reloc_check (Elf *elf __attribute__ ((unused)), int type)
{
switch (type)
{
case R_68K_GOT32:
case R_68K_GOT16:
case R_68K_GOT8:
return true;
}
return false;
}
/* Check for the simple reloc types. */
Elf_Type
m68k_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
{
switch (type)
{
case R_68K_32:
return ELF_T_SWORD;
case R_68K_16:
return ELF_T_HALF;
case R_68K_8:
return ELF_T_BYTE;
default:
return ELF_T_NUM;
}
}

2
elfutils/backends/ppc64_corenote.c Normal file
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#define BITS 64
#include "ppc_corenote.c"

110
elfutils/backends/ppc64_init.c Normal file
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/* Initialization of PPC64 specific backend library.
Copyright (C) 2004, 2005, 2006, 2007, 2008, 2013, 2014 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2004.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#define BACKEND ppc64_
#define RELOC_PREFIX R_PPC64_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on ppc64_reloc.def. */
#include "common-reloc.c"
const char *
ppc64_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "PowerPC 64-bit";
ppc64_init_reloc (eh);
HOOK (eh, reloc_simple_type);
HOOK (eh, dynamic_tag_name);
HOOK (eh, dynamic_tag_check);
HOOK (eh, machine_flag_check);
HOOK (eh, copy_reloc_p);
HOOK (eh, check_special_symbol);
HOOK (eh, check_st_other_bits);
HOOK (eh, bss_plt_p);
HOOK (eh, return_value_location);
HOOK (eh, register_info);
HOOK (eh, syscall_abi);
HOOK (eh, core_note);
HOOK (eh, auxv_info);
HOOK (eh, check_object_attribute);
HOOK (eh, abi_cfi);
/* gcc/config/ #define DWARF_FRAME_REGISTERS. */
eh->frame_nregs = (114 - 1) + 32;
HOOK (eh, set_initial_registers_tid);
HOOK (eh, dwarf_to_regno);
HOOK (eh, unwind);
HOOK (eh, resolve_sym_value);
/* Find the function descriptor .opd table for resolve_sym_value. */
if (elf != NULL)
{
GElf_Ehdr ehdr_mem, *ehdr = gelf_getehdr (elf, &ehdr_mem);
if (ehdr != NULL && ehdr->e_type != ET_REL)
{
/* We could also try through DT_PPC64_OPD and DT_PPC64_OPDSZ. */
GElf_Shdr opd_shdr_mem, *opd_shdr;
Elf_Scn *scn = NULL;
while ((scn = elf_nextscn (elf, scn)) != NULL)
{
opd_shdr = gelf_getshdr (scn, &opd_shdr_mem);
if (opd_shdr != NULL
&& (opd_shdr->sh_flags & SHF_ALLOC) != 0
&& opd_shdr->sh_type == SHT_PROGBITS
&& opd_shdr->sh_size > 0)
{
const char *name = elf_strptr (elf, ehdr->e_shstrndx,
opd_shdr->sh_name);
if (name != NULL && strcmp (name, ".opd") == 0)
{
eh->fd_addr = opd_shdr->sh_addr;
eh->fd_data = elf_getdata (scn, NULL);
break;
}
}
}
}
}
return MODVERSION;
}

161
elfutils/backends/ppc64_reloc.def Normal file
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/* List the relocation types for ppc64. -*- C -*-
Copyright (C) 2005, 2015 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (NONE, 0)
RELOC_TYPE (ADDR32, REL|EXEC|DYN)
RELOC_TYPE (ADDR24, REL)
RELOC_TYPE (ADDR16, REL) /* note 1 */
RELOC_TYPE (ADDR16_LO, REL) /* note 1 */
RELOC_TYPE (ADDR16_HI, REL) /* note 1 */
RELOC_TYPE (ADDR16_HA, REL) /* note 1 */
RELOC_TYPE (ADDR14, REL) /* note 1 */
RELOC_TYPE (ADDR14_BRTAKEN, REL) /* note 1 */
RELOC_TYPE (ADDR14_BRNTAKEN, REL) /* note 1 */
RELOC_TYPE (REL24, REL)
RELOC_TYPE (REL14, REL)
RELOC_TYPE (REL14_BRTAKEN, REL)
RELOC_TYPE (REL14_BRNTAKEN, REL)
RELOC_TYPE (GOT16, REL)
RELOC_TYPE (GOT16_LO, REL)
RELOC_TYPE (GOT16_HI, REL)
RELOC_TYPE (GOT16_HA, REL)
RELOC_TYPE (COPY, EXEC|DYN)
RELOC_TYPE (GLOB_DAT, EXEC|DYN)
RELOC_TYPE (JMP_SLOT, EXEC|DYN)
RELOC_TYPE (RELATIVE, EXEC|DYN)
RELOC_TYPE (UADDR32, REL|EXEC|DYN)
RELOC_TYPE (UADDR16, REL)
RELOC_TYPE (REL32, REL|EXEC|DYN)
RELOC_TYPE (PLT32, REL)
RELOC_TYPE (PLTREL32, REL)
RELOC_TYPE (PLT16_LO, REL)
RELOC_TYPE (PLT16_HI, REL)
RELOC_TYPE (PLT16_HA, REL)
RELOC_TYPE (SECTOFF, REL)
RELOC_TYPE (SECTOFF_LO, REL)
RELOC_TYPE (SECTOFF_HI, REL)
RELOC_TYPE (SECTOFF_HA, REL)
RELOC_TYPE (ADDR30, REL) /* note 1 */
RELOC_TYPE (ADDR64, REL|EXEC|DYN)
RELOC_TYPE (ADDR16_HIGHER, REL) /* note 1 */
RELOC_TYPE (ADDR16_HIGHERA, REL) /* note 1 */
RELOC_TYPE (ADDR16_HIGHEST, REL) /* note 1 */
RELOC_TYPE (ADDR16_HIGHESTA, REL) /* note 1 */
RELOC_TYPE (UADDR64, REL|EXEC|DYN)
RELOC_TYPE (REL64, REL|EXEC|DYN)
RELOC_TYPE (PLT64, REL)
RELOC_TYPE (PLTREL64, REL)
RELOC_TYPE (TOC16, REL)
RELOC_TYPE (TOC16_LO, REL)
RELOC_TYPE (TOC16_HI, REL)
RELOC_TYPE (TOC16_HA, REL)
RELOC_TYPE (TOC, REL)
RELOC_TYPE (PLTGOT16, REL)
RELOC_TYPE (PLTGOT16_LO, REL)
RELOC_TYPE (PLTGOT16_HI, REL)
RELOC_TYPE (PLTGOT16_HA, REL)
RELOC_TYPE (ADDR16_DS, REL) /* note 1 */
RELOC_TYPE (ADDR16_LO_DS, REL) /* note 1 */
RELOC_TYPE (GOT16_DS, REL)
RELOC_TYPE (GOT16_LO_DS, REL)
RELOC_TYPE (PLT16_LO_DS, REL)
RELOC_TYPE (SECTOFF_DS, REL)
RELOC_TYPE (SECTOFF_LO_DS, REL)
RELOC_TYPE (TOC16_DS, REL)
RELOC_TYPE (TOC16_LO_DS, REL)
RELOC_TYPE (PLTGOT16_DS, REL)
RELOC_TYPE (PLTGOT16_LO_DS, REL)
RELOC_TYPE (TLS, REL)
RELOC_TYPE (DTPMOD64, REL|EXEC|DYN) /* note 3 */
RELOC_TYPE (TPREL16, REL) /* note 2 */
RELOC_TYPE (TPREL16_LO, REL) /* note 2 */
RELOC_TYPE (TPREL16_HI, REL) /* note 2 */
RELOC_TYPE (TPREL16_HA, REL) /* note 2 */
RELOC_TYPE (TPREL64, REL|EXEC|DYN) /* note 3 */
RELOC_TYPE (DTPREL16, REL)
RELOC_TYPE (DTPREL16_LO, REL)
RELOC_TYPE (DTPREL16_HI, REL)
RELOC_TYPE (DTPREL16_HA, REL)
RELOC_TYPE (DTPREL64, REL|EXEC|DYN) /* note 3 */
RELOC_TYPE (GOT_TLSGD16, REL)
RELOC_TYPE (GOT_TLSGD16_LO, REL)
RELOC_TYPE (GOT_TLSGD16_HI, REL)
RELOC_TYPE (GOT_TLSGD16_HA, REL)
RELOC_TYPE (GOT_TLSLD16, REL)
RELOC_TYPE (GOT_TLSLD16_LO, REL)
RELOC_TYPE (GOT_TLSLD16_HI, REL)
RELOC_TYPE (GOT_TLSLD16_HA, REL)
RELOC_TYPE (GOT_TPREL16_DS, REL)
RELOC_TYPE (GOT_TPREL16_LO_DS, REL)
RELOC_TYPE (GOT_TPREL16_HI, REL)
RELOC_TYPE (GOT_TPREL16_HA, REL)
RELOC_TYPE (GOT_DTPREL16_DS, REL)
RELOC_TYPE (GOT_DTPREL16_LO_DS, REL)
RELOC_TYPE (GOT_DTPREL16_HI, REL)
RELOC_TYPE (GOT_DTPREL16_HA, REL)
RELOC_TYPE (TPREL16_DS, REL) /* note 2 */
RELOC_TYPE (TPREL16_LO_DS, REL) /* note 2 */
RELOC_TYPE (TPREL16_HIGHER, REL) /* note 2 */
RELOC_TYPE (TPREL16_HIGHERA, REL) /* note 2 */
RELOC_TYPE (TPREL16_HIGHEST, REL) /* note 2 */
RELOC_TYPE (TPREL16_HIGHESTA, REL) /* note 2 */
RELOC_TYPE (DTPREL16_DS, REL)
RELOC_TYPE (DTPREL16_LO_DS, REL)
RELOC_TYPE (DTPREL16_HIGHER, REL)
RELOC_TYPE (DTPREL16_HIGHERA, REL)
RELOC_TYPE (DTPREL16_HIGHEST, REL)
RELOC_TYPE (DTPREL16_HIGHESTA, REL)
RELOC_TYPE (TLSGD, REL)
RELOC_TYPE (TLSLD, REL)
RELOC_TYPE (TOCSAVE, REL)
RELOC_TYPE (ADDR16_HIGH, REL)
RELOC_TYPE (ADDR16_HIGHA, REL)
RELOC_TYPE (TPREL16_HIGH, REL)
RELOC_TYPE (TPREL16_HIGHA, REL)
RELOC_TYPE (DTPREL16_HIGH, REL)
RELOC_TYPE (DTPREL16_HIGHA, REL)
RELOC_TYPE (JMP_IREL, REL)
RELOC_TYPE (IRELATIVE, REL)
RELOC_TYPE (REL16, REL)
RELOC_TYPE (REL16_LO, REL)
RELOC_TYPE (REL16_HI, REL)
RELOC_TYPE (REL16_HA, REL)
/* Notes from Alan Modra:
1) These can appear in DYN and EXEC with improper assembly, but they
aren't really kosher.
2) These can appear in DYN with improper assembly (or silly gcc
attributes, I think). Again, not kosher.
3) These are legal in REL for PowerOpen compatible assembler syntax,
ie. TOC managed by compiler.
*/

63
elfutils/backends/ppc64_resolve_sym.c Normal file
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/* Resolve symbol values through .opd function descriptors.
Copyright (C) 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND ppc64_
#include "libebl_CPU.h"
/* Resolve a function descriptor if addr points into the .opd section.
The .opd section contains function descriptors consisting of 3 addresses.
function, toc and chain. We are just interested in the first.
http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.html#FUNC-DES
Returns true if the given address could be resolved, false otherwise.
*/
bool
ppc64_resolve_sym_value (Ebl *ebl, GElf_Addr *addr)
{
if (ebl->fd_data != NULL && *addr >= ebl->fd_addr
&& *addr + sizeof (Elf64_Addr) <= ebl->fd_addr + ebl->fd_data->d_size)
{
GElf_Ehdr ehdr_mem, *ehdr = gelf_getehdr (ebl->elf, &ehdr_mem);
if (ehdr != NULL)
{
Elf_Data opd_in, opd_out;
opd_in.d_buf = ebl->fd_data->d_buf + (*addr - ebl->fd_addr);
opd_out.d_buf = addr;
opd_out.d_size = opd_in.d_size = sizeof (Elf64_Addr);
opd_out.d_type = opd_in.d_type = ELF_T_ADDR;
if (elf64_xlatetom (&opd_out, &opd_in,
ehdr->e_ident[EI_DATA]) != NULL)
return true;
}
}
return false;
}

195
elfutils/backends/ppc64_retval.c Normal file
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/* Function return value location for Linux/PPC64 ABI.
Copyright (C) 2005-2010, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <dwarf.h>
#define BACKEND ppc64_
#include "libebl_CPU.h"
/* r3. */
static const Dwarf_Op loc_intreg[] =
{
{ .atom = DW_OP_reg3 }
};
#define nloc_intreg 1
/* f1, or f1:f2, or f1:f4. */
static const Dwarf_Op loc_fpreg[] =
{
{ .atom = DW_OP_regx, .number = 33 }, { .atom = DW_OP_piece, .number = 8 },
{ .atom = DW_OP_regx, .number = 34 }, { .atom = DW_OP_piece, .number = 8 },
{ .atom = DW_OP_regx, .number = 35 }, { .atom = DW_OP_piece, .number = 8 },
{ .atom = DW_OP_regx, .number = 36 }, { .atom = DW_OP_piece, .number = 8 },
};
#define nloc_fpreg 1
#define nloc_fp2regs 4
#define nloc_fp4regs 8
/* vr2. */
static const Dwarf_Op loc_vmxreg[] =
{
{ .atom = DW_OP_regx, .number = 1124 + 2 }
};
#define nloc_vmxreg 1
/* The return value is a structure and is actually stored in stack space
passed in a hidden argument by the caller. But, the compiler
helpfully returns the address of that space in r3. */
static const Dwarf_Op loc_aggregate[] =
{
{ .atom = DW_OP_breg3, .number = 0 }
};
#define nloc_aggregate 1
int
ppc64_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
Dwarf_Die die_mem, *typedie = &die_mem;
int tag = dwarf_peeled_die_type (functypedie, typedie);
if (tag <= 0)
return tag;
Dwarf_Word size;
switch (tag)
{
case -1:
return -1;
case DW_TAG_subrange_type:
if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
{
Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
/* Fall through. */
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
{
Dwarf_Attribute attr_mem;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
&attr_mem), &size) != 0)
{
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
size = 8;
else
return -1;
}
}
if (tag == DW_TAG_base_type)
{
Dwarf_Attribute attr_mem;
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
&attr_mem),
&encoding) != 0)
return -1;
if (encoding == DW_ATE_float || encoding == DW_ATE_complex_float)
{
*locp = loc_fpreg;
if (size <= 8)
return nloc_fpreg;
if (size <= 16)
return nloc_fp2regs;
if (size <= 32)
return nloc_fp4regs;
}
}
if (size <= 8)
{
intreg:
*locp = loc_intreg;
return nloc_intreg;
}
/* Else fall through. */
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
aggregate:
*locp = loc_aggregate;
return nloc_aggregate;
case DW_TAG_array_type:
{
Dwarf_Attribute attr_mem;
bool is_vector;
if (dwarf_formflag (dwarf_attr_integrate (typedie, DW_AT_GNU_vector,
&attr_mem), &is_vector) == 0
&& is_vector)
{
*locp = loc_vmxreg;
return nloc_vmxreg;
}
}
/* Fall through. */
case DW_TAG_string_type:
if (dwarf_aggregate_size (typedie, &size) == 0 && size <= 8)
{
if (tag == DW_TAG_array_type)
{
/* Check if it's a character array. */
Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
if (tag != DW_TAG_base_type)
goto aggregate;
if (dwarf_formudata (dwarf_attr_integrate (typedie,
DW_AT_byte_size,
&attr_mem),
&size) != 0)
return -1;
if (size != 1)
goto aggregate;
}
goto intreg;
}
goto aggregate;
}
/* XXX We don't have a good way to return specific errors from ebl calls.
This value means we do not understand the type, but it is well-formed
DWARF and might be valid. */
return -2;
}

130
elfutils/backends/ppc64_symbol.c Normal file
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/* PPC64 specific symbolic name handling.
Copyright (C) 2004, 2005, 2014 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2004.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <elf.h>
#include <stddef.h>
#include <string.h>
#define BACKEND ppc64_
#include "libebl_CPU.h"
/* Check for the simple reloc types. */
Elf_Type
ppc64_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
{
switch (type)
{
case R_PPC64_ADDR64:
case R_PPC64_UADDR64:
return ELF_T_XWORD;
case R_PPC64_ADDR32:
case R_PPC64_UADDR32:
return ELF_T_WORD;
case R_PPC64_UADDR16:
return ELF_T_HALF;
default:
return ELF_T_NUM;
}
}
const char *
ppc64_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
switch (tag)
{
case DT_PPC64_GLINK:
return "PPC64_GLINK";
case DT_PPC64_OPD:
return "PPC64_OPD";
case DT_PPC64_OPDSZ:
return "PPC64_OPDSZ";
case DT_PPC64_OPT:
return "PPC64_OPT";
default:
break;
}
return NULL;
}
bool
ppc64_dynamic_tag_check (int64_t tag)
{
return (tag == DT_PPC64_GLINK
|| tag == DT_PPC64_OPD
|| tag == DT_PPC64_OPDSZ
|| tag == DT_PPC64_OPT);
}
/* Check whether given symbol's st_value and st_size are OK despite failing
normal checks. */
bool
ppc64_check_special_symbol (Elf *elf, GElf_Ehdr *ehdr,
const GElf_Sym *sym __attribute__ ((unused)),
const char *name __attribute__ ((unused)),
const GElf_Shdr *destshdr)
{
const char *sname = elf_strptr (elf, ehdr->e_shstrndx, destshdr->sh_name);
if (sname == NULL)
return false;
return strcmp (sname, ".opd") == 0;
}
/* Check if backend uses a bss PLT in this file. */
bool
ppc64_bss_plt_p (Elf *elf __attribute__ ((unused)))
{
return true;
}
/* Check whether machine flags are valid. PPC64 has three possible values:
0 - for unspecified ABI, or not using any specific ABI features.
1 - for the original ELF PPC64 ABI using function descriptors.
2 - for the revised ELFv2 PPC64 ABI without function descriptors. */
bool
ppc64_machine_flag_check (GElf_Word flags)
{
return flags == 0 || flags == 1 || flags == 2;
}
bool
ppc64_check_st_other_bits (unsigned char st_other)
{
return (PPC64_LOCAL_ENTRY_OFFSET (st_other) != 0);
}

76
elfutils/backends/ppc64_unwind.c Normal file
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/* Get previous frame state for an existing frame state.
Copyright (C) 2017 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND ppc64_
#define LR_REG 65 /* Not 108, see ppc_dwarf_to_regno. */
#define SP_REG 1
#define LR_OFFSET 16
#include "libebl_CPU.h"
/* Simplistic fallback frame unwinder. SP points to the backchain (contains
address of previous stack pointer). At SP offset 16 is the LR save area
(contains the value of the previous LR). */
bool
EBLHOOK(unwind) (Ebl *ebl __attribute__ ((unused)),
Dwarf_Addr pc __attribute__ ((unused)),
ebl_tid_registers_t *setfunc, ebl_tid_registers_get_t *getfunc,
ebl_pid_memory_read_t *readfunc, void *arg,
bool *signal_framep __attribute__ ((unused)))
{
Dwarf_Word sp, newSp, lr, newLr;
/* Stack pointer points to the backchain which contains the previous sp. */
if (! getfunc (SP_REG, 1, &sp, arg))
sp = 0;
/* Link register contains previous program counter. */
if (! getfunc (LR_REG, 1, &lr, arg)
|| lr == 0
|| ! setfunc (-1, 1, &lr, arg))
return false;
if (! readfunc(sp, &newSp, arg))
newSp = 0;
if (! readfunc(newSp + LR_OFFSET, &newLr, arg))
newLr = 0;
setfunc(SP_REG, 1, &newSp, arg);
setfunc(LR_REG, 1, &newLr, arg);
/* Sanity check the stack grows down. */
return newSp > sp;
}

86
elfutils/backends/ppc_attrs.c Normal file
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/* Object attribute tags for PowerPC.
Copyright (C) 2008, 2009 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <dwarf.h>
#define BACKEND ppc_
#include "libebl_CPU.h"
bool
ppc_check_object_attribute (Ebl *ebl __attribute__ ((unused)),
const char *vendor, int tag, uint64_t value,
const char **tag_name, const char **value_name)
{
if (!strcmp (vendor, "gnu"))
switch (tag)
{
case 4:
*tag_name = "GNU_Power_ABI_FP";
static const char *fp_kinds[] =
{
"Hard or soft float",
"Hard float",
"Soft float",
"Single-precision hard float",
};
if (value < sizeof fp_kinds / sizeof fp_kinds[0])
*value_name = fp_kinds[value];
return true;
case 8:
*tag_name = "GNU_Power_ABI_Vector";
static const char *vector_kinds[] =
{
"Any", "Generic", "AltiVec", "SPE"
};
if (value < sizeof vector_kinds / sizeof vector_kinds[0])
*value_name = vector_kinds[value];
return true;
case 12:
*tag_name = "GNU_Power_ABI_Struct_Return";
static const char *struct_return_kinds[] =
{
"Any", "r3/r4", "Memory"
};
if (value < sizeof struct_return_kinds / sizeof struct_return_kinds[0])
*value_name = struct_return_kinds[value];
return true;
}
return false;
}
__typeof (ppc_check_object_attribute)
ppc64_check_object_attribute
__attribute__ ((alias ("ppc_check_object_attribute")));

55
elfutils/backends/ppc_auxv.c Normal file
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/* i386 specific auxv handling.
Copyright (C) 2007 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND ppc_
#include "libebl_CPU.h"
int
EBLHOOK(auxv_info) (GElf_Xword a_type, const char **name, const char **format)
{
if (a_type != AT_HWCAP)
return 0;
*name = "HWCAP";
*format = "b"
"ppcle\0" "truele\0" "3\0" "4\0" "5\0" "6\0" "7\0" "8\0" "9\0"
"power6x\0" "dfp\0" "pa6t\0" "arch_2_05\0"
"ic_snoop\0" "smt\0" "booke\0" "cellbe\0"
"power5+\0" "power5\0" "power4\0" "notb\0"
"efpdouble\0" "efpsingle\0" "spe\0" "ucache\0"
"4xxmac\0" "mmu\0" "fpu\0" "altivec\0"
"ppc601\0" "ppc64\0" "ppc32\0" "\0";
return 1;
}
__typeof (ppc_auxv_info) ppc64_auxv_info
__attribute__ ((alias ("ppc_auxv_info")));

77
elfutils/backends/ppc_cfi.c Normal file
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/* ppc ABI-specified defaults for DWARF CFI.
Copyright (C) 2012, 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <dwarf.h>
#define BACKEND ppc_
#include "libebl_CPU.h"
int
ppc_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
{
static const uint8_t abi_cfi[] =
{
/* This instruction is provided in every CIE. It is not repeated here:
DW_CFA_def_cfa, ULEB128_7 (1), ULEB128_7 (0) */
/* r1 is assumed to be restored from cfa adress,
r1 acts as a stack frame pointer. */
DW_CFA_val_offset, ULEB128_7 (1), ULEB128_7 (0),
/* lr is not callee-saved but it needs to be preserved as it is pre-set
by the caller. */
DW_CFA_same_value, ULEB128_7 (65), /* lr */
/* Callee-saved regs. */
#define SV(n) DW_CFA_same_value, ULEB128_7 (n)
SV (2), /* r2 is TOC pointer. */
SV (13), /* Reserved as system thread id (is it for CFI?). */
/* r14-r31 are non-volatile registers. */
SV (14), SV (15), SV (16), SV (17), SV (18), SV (19), SV (20), SV (21),
SV (22), SV (23), SV (24), SV (25), SV (26), SV (27), SV (28), SV (29),
SV (30), SV (31)
/* VMX registers v20-v31 and vrsave are non-volatile but they are
assigned DWARF registers 1144-1156 (v20-v31) which is outside of the
CFI supported range. */
#undef SV
};
abi_info->initial_instructions = abi_cfi;
abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
abi_info->data_alignment_factor = ebl->class == ELFCLASS64 ? 8 : 4;
abi_info->return_address_register = 65;
return 0;
}
__typeof (ppc_abi_cfi)
ppc64_abi_cfi
__attribute__ ((alias ("ppc_abi_cfi")));

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/* PowerPC specific core note handling.
Copyright (C) 2007, 2008 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <inttypes.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/time.h>
#ifndef BITS
# define BITS 32
# define BACKEND ppc_
#else
# define BITS 64
# define BACKEND ppc64_
#endif
#include "libebl_CPU.h"
static const Ebl_Register_Location prstatus_regs[] =
{
#define GR(at, n, dwreg) \
{ .offset = at * BITS/8, .regno = dwreg, .count = n, .bits = BITS }
GR (0, 32, 0), /* r0-r31 */
/* 32, 1, nip */
GR (33, 1, 66), /* msr */
/* 34, 1, orig_gpr3 */
GR (35, 1, 109), /* ctr */
GR (36, 1, 108), /* lr */
GR (37, 1, 101), /* xer */
GR (38, 1, 64), /* cr */
GR (39, 1, 100), /* mq */
/* 40, 1, trap */
GR (41, 1, 119), /* dar */
GR (42, 1, 118), /* dsisr */
#undef GR
};
#define PRSTATUS_REGS_SIZE (BITS / 8 * 48)
static const Ebl_Register_Location fpregset_regs[] =
{
{ .offset = 0, .regno = 32, .count = 32, .bits = 64 }, /* f0-f31 */
{ .offset = 32 * 8 + 4, .regno = 65, .count = 1, .bits = 32 } /* fpscr */
};
#define FPREGSET_SIZE (33 * 8)
static const Ebl_Register_Location altivec_regs[] =
{
/* vr0-vr31 */
{ .offset = 0, .regno = 1124, .count = 32, .bits = 128 },
/* vscr XXX 67 is an unofficial assignment */
{ .offset = 32 * 16, .regno = 67, .count = 1, .bits = 32, .pad = 12 },
/* vrsave */
{ .offset = 33 * 16, .regno = 356, .count = 1, .bits = 32, .pad = 12 }
};
static const Ebl_Register_Location spe_regs[] =
{
/* evr0-evr31
{ .offset = 0, .regno = ???, .count = 32, .bits = 32 },
* acc *
{ .offset = 32 * 4, .regno = ???, .count = 1, .bits = 64 }, */
/* spefscr */
{ .offset = 34 * 4, .regno = 612, .count = 1, .bits = 32 }
};
static const Ebl_Register_Location tm_spr_regs[] =
{
/* tfhar */
{ .offset = 0, .regno = 114, .count = 1, .bits = 64 },
/* texasr */
{ .offset = 8, .regno = 116, .count = 1, .bits = 64 },
/* tfiar */
{ .offset = 16, .regno = 115, .count = 1, .bits = 64 }
};
#define EXTRA_NOTES \
EXTRA_REGSET (NT_PPC_VMX, 34 * 16, altivec_regs) \
EXTRA_REGSET (NT_PPC_SPE, 35 * 4, spe_regs) \
EXTRA_REGSET (NT_PPC_TM_SPR, 3 * 8, tm_spr_regs)
#if BITS == 32
# define ULONG uint32_t
# define ALIGN_ULONG 4
# define TYPE_ULONG ELF_T_WORD
# define TYPE_LONG ELF_T_SWORD
#else
# define ULONG uint64_t
# define ALIGN_ULONG 8
# define TYPE_ULONG ELF_T_XWORD
# define TYPE_LONG ELF_T_SXWORD
#endif
#define PID_T int32_t
#define UID_T uint32_t
#define GID_T uint32_t
#define ALIGN_PID_T 4
#define ALIGN_UID_T 4
#define ALIGN_GID_T 4
#define TYPE_PID_T ELF_T_SWORD
#define TYPE_UID_T ELF_T_WORD
#define TYPE_GID_T ELF_T_WORD
#define PRSTATUS_REGSET_ITEMS \
{ \
.name = "nip", .type = ELF_T_ADDR, .format = 'x', \
.offset = offsetof (struct EBLHOOK(prstatus), pr_reg[32]), \
.group = "register", .pc_register = true \
}, \
{ \
.name = "orig_gpr3", .type = TYPE_LONG, .format = 'd', \
.offset = offsetof (struct EBLHOOK(prstatus), pr_reg[34]), \
.group = "register" \
}
#include "linux-core-note.c"

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/* Initialization of PPC specific backend library.
Copyright (C) 2004, 2005, 2006, 2007, 2008, 2013 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2004.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND ppc_
#define RELOC_PREFIX R_PPC_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on ppc_reloc.def. */
#include "common-reloc.c"
const char *
ppc_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "PowerPC";
ppc_init_reloc (eh);
HOOK (eh, reloc_simple_type);
HOOK (eh, machine_flag_check);
HOOK (eh, dynamic_tag_name);
HOOK (eh, dynamic_tag_check);
HOOK (eh, check_special_symbol);
HOOK (eh, bss_plt_p);
HOOK (eh, return_value_location);
HOOK (eh, register_info);
HOOK (eh, syscall_abi);
HOOK (eh, core_note);
HOOK (eh, auxv_info);
HOOK (eh, check_object_attribute);
HOOK (eh, abi_cfi);
/* gcc/config/ #define DWARF_FRAME_REGISTERS. */
eh->frame_nregs = (114 - 1) + 32;
HOOK (eh, set_initial_registers_tid);
HOOK (eh, dwarf_to_regno);
return MODVERSION;
}

114
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/* Fetch live process registers from TID.
Copyright (C) 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "system.h"
#include <stdlib.h>
#if defined(__powerpc__) && defined(__linux__)
# include <sys/user.h>
# include <sys/ptrace.h>
#endif
#define BACKEND ppc_
#include "libebl_CPU.h"
bool
ppc_dwarf_to_regno (Ebl *ebl __attribute__ ((unused)), unsigned *regno)
{
switch (*regno)
{
case 108:
// LR uses both 65 and 108 numbers, there is no consistency for it.
*regno = 65;
return true;
case 0 ... 107:
case 109 ... (114 - 1) -1:
return true;
case 1200 ... 1231:
*regno = *regno - 1200 + (114 - 1);
return true;
default:
return false;
}
abort ();
}
__typeof (ppc_dwarf_to_regno)
ppc64_dwarf_to_regno
__attribute__ ((alias ("ppc_dwarf_to_regno")));
bool
ppc_set_initial_registers_tid (pid_t tid __attribute__ ((unused)),
ebl_tid_registers_t *setfunc __attribute__ ((unused)),
void *arg __attribute__ ((unused)))
{
#if !defined(__powerpc__) || !defined(__linux__)
return false;
#else /* __powerpc__ */
union
{
struct pt_regs r;
long l[sizeof (struct pt_regs) / sizeof (long)];
}
user_regs;
eu_static_assert (sizeof (struct pt_regs) % sizeof (long) == 0);
/* PTRACE_GETREGS is EIO on kernel-2.6.18-308.el5.ppc64. */
errno = 0;
for (unsigned regno = 0; regno < sizeof (user_regs) / sizeof (long);
regno++)
{
user_regs.l[regno] = ptrace (PTRACE_PEEKUSER, tid,
(void *) (uintptr_t) (regno
* sizeof (long)),
NULL);
if (errno != 0)
return false;
}
const size_t gprs = sizeof (user_regs.r.gpr) / sizeof (*user_regs.r.gpr);
Dwarf_Word dwarf_regs[gprs];
for (unsigned gpr = 0; gpr < gprs; gpr++)
dwarf_regs[gpr] = user_regs.r.gpr[gpr];
if (! setfunc (0, gprs, dwarf_regs, arg))
return false;
dwarf_regs[0] = user_regs.r.link;
// LR uses both 65 and 108 numbers, there is no consistency for it.
if (! setfunc (65, 1, dwarf_regs, arg))
return false;
/* Registers like msr, ctr, xer, dar, dsisr etc. are probably irrelevant
for CFI. */
dwarf_regs[0] = user_regs.r.nip;
return setfunc (-1, 1, dwarf_regs, arg);
#endif /* __powerpc__ */
}
__typeof (ppc_set_initial_registers_tid)
ppc64_set_initial_registers_tid
__attribute__ ((alias ("ppc_set_initial_registers_tid")));

208
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/* Register names and numbers for PowerPC DWARF.
Copyright (C) 2005, 2006, 2007 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <dwarf.h>
#define BACKEND ppc_
#include "libebl_CPU.h"
ssize_t
ppc_register_info (Ebl *ebl __attribute__ ((unused)),
int regno, char *name, size_t namelen,
const char **prefix, const char **setname,
int *bits, int *type)
{
if (name == NULL)
return 1156;
if (regno < 0 || regno > 1155 || namelen < 8)
return -1;
*prefix = "";
*bits = ebl->machine == EM_PPC64 ? 64 : 32;
*type = (regno < 32 ? DW_ATE_signed
: regno < 64 ? DW_ATE_float : DW_ATE_unsigned);
if (regno < 32 || regno == 64 || regno == 66)
*setname = "integer";
else if (regno < 64 || regno == 65)
{
*setname = "FPU";
if (ebl->machine != EM_PPC64 && regno < 64)
*bits = 64;
}
else if (regno == 67 || regno == 356 || regno == 612 || regno >= 1124)
{
*setname = "vector";
*bits = regno >= 1124 ? 128 : 32;
}
else
*setname = "privileged";
switch (regno)
{
case 0 ... 9:
name[0] = 'r';
name[1] = regno + '0';
namelen = 2;
break;
case 10 ... 31:
name[0] = 'r';
name[1] = regno / 10 + '0';
name[2] = regno % 10 + '0';
namelen = 3;
break;
case 32 + 0 ... 32 + 9:
name[0] = 'f';
name[1] = (regno - 32) + '0';
namelen = 2;
break;
case 32 + 10 ... 32 + 31:
name[0] = 'f';
name[1] = (regno - 32) / 10 + '0';
name[2] = (regno - 32) % 10 + '0';
namelen = 3;
break;
case 64:
return stpcpy (name, "cr") + 1 - name;
case 65:
return stpcpy (name, "fpscr") + 1 - name;
case 66:
return stpcpy (name, "msr") + 1 - name;
case 67: /* XXX unofficial assignment */
return stpcpy (name, "vscr") + 1 - name;
case 70 + 0 ... 70 + 9:
name[0] = 's';
name[1] = 'r';
name[2] = (regno - 70) + '0';
namelen = 3;
break;
case 70 + 10 ... 70 + 15:
name[0] = 's';
name[1] = 'r';
name[2] = (regno - 70) / 10 + '0';
name[3] = (regno - 70) % 10 + '0';
namelen = 4;
break;
case 101:
return stpcpy (name, "xer") + 1 - name;
case 108:
return stpcpy (name, "lr") + 1 - name;
case 109:
return stpcpy (name, "ctr") + 1 - name;
case 118:
return stpcpy (name, "dsisr") + 1 - name;
case 119:
return stpcpy (name, "dar") + 1 - name;
case 122:
return stpcpy (name, "dec") + 1 - name;
case 356:
return stpcpy (name, "vrsave") + 1 - name;
case 612:
return stpcpy (name, "spefscr") + 1 - name;
case 100:
if (*bits == 32)
return stpcpy (name, "mq") + 1 - name;
/* Fallthrough */
case 102 ... 107:
name[0] = 's';
name[1] = 'p';
name[2] = 'r';
name[3] = (regno - 100) + '0';
namelen = 4;
break;
case 114:
return stpcpy (name, "tfhar") + 1 - name;
case 115:
return stpcpy (name, "tfiar") + 1 - name;
case 116:
return stpcpy (name, "texasr") + 1 - name;
case 110 ... 113:
case 117:
case 120 ... 121:
case 123 ... 199:
name[0] = 's';
name[1] = 'p';
name[2] = 'r';
name[3] = (regno - 100) / 10 + '0';
name[4] = (regno - 100) % 10 + '0';
namelen = 5;
break;
case 200 ... 355:
case 357 ... 611:
case 613 ... 999:
name[0] = 's';
name[1] = 'p';
name[2] = 'r';
name[3] = (regno - 100) / 100 + '0';
name[4] = ((regno - 100) % 100 / 10) + '0';
name[5] = (regno - 100) % 10 + '0';
namelen = 6;
break;
case 1124 + 0 ... 1124 + 9:
name[0] = 'v';
name[1] = 'r';
name[2] = (regno - 1124) + '0';
namelen = 3;
break;
case 1124 + 10 ... 1124 + 31:
name[0] = 'v';
name[1] = 'r';
name[2] = (regno - 1124) / 10 + '0';
name[3] = (regno - 1124) % 10 + '0';
namelen = 4;
break;
default:
*setname = NULL;
return 0;
}
name[namelen++] = '\0';
return namelen;
}
__typeof (ppc_register_info)
ppc64_register_info __attribute__ ((alias ("ppc_register_info")));

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/* List the relocation types for ppc. -*- C -*-
Copyright (C) 2005, 2015 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (NONE, 0)
RELOC_TYPE (ADDR32, REL|EXEC|DYN)
RELOC_TYPE (ADDR24, REL)
RELOC_TYPE (ADDR16, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (ADDR16_LO, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (ADDR16_HI, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (ADDR16_HA, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (ADDR14, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (ADDR14_BRTAKEN, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (ADDR14_BRNTAKEN, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (REL24, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (REL14, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (REL14_BRTAKEN, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (REL14_BRNTAKEN, REL|EXEC|DYN) /* note 1 */
RELOC_TYPE (GOT16, REL)
RELOC_TYPE (GOT16_LO, REL)
RELOC_TYPE (GOT16_HI, REL)
RELOC_TYPE (GOT16_HA, REL)
RELOC_TYPE (PLTREL24, REL)
RELOC_TYPE (COPY, EXEC|DYN)
RELOC_TYPE (GLOB_DAT, EXEC|DYN)
RELOC_TYPE (JMP_SLOT, EXEC|DYN)
RELOC_TYPE (RELATIVE, EXEC|DYN)
RELOC_TYPE (LOCAL24PC, REL)
RELOC_TYPE (UADDR32, REL|EXEC|DYN)
RELOC_TYPE (UADDR16, REL) /* note 2 */
RELOC_TYPE (REL32, REL|EXEC|DYN)
RELOC_TYPE (PLT32, REL)
RELOC_TYPE (PLTREL32, REL)
RELOC_TYPE (PLT16_LO, REL)
RELOC_TYPE (PLT16_HI, REL)
RELOC_TYPE (PLT16_HA, REL)
RELOC_TYPE (SDAREL16, REL)
RELOC_TYPE (SECTOFF, REL)
RELOC_TYPE (SECTOFF_LO, REL)
RELOC_TYPE (SECTOFF_HI, REL)
RELOC_TYPE (SECTOFF_HA, REL)
RELOC_TYPE (TLS, REL)
RELOC_TYPE (DTPMOD32, EXEC|DYN) /* note 2 */
RELOC_TYPE (TPREL16, REL) /* note 2 */
RELOC_TYPE (TPREL16_LO, REL) /* note 2 */
RELOC_TYPE (TPREL16_HI, REL) /* note 2 */
RELOC_TYPE (TPREL16_HA, REL) /* note 2 */
RELOC_TYPE (TPREL32, EXEC|DYN) /* note 2 */
RELOC_TYPE (DTPREL16, REL)
RELOC_TYPE (DTPREL16_LO, REL)
RELOC_TYPE (DTPREL16_HI, REL)
RELOC_TYPE (DTPREL16_HA, REL)
RELOC_TYPE (DTPREL32, EXEC|DYN) /* note 2 */
RELOC_TYPE (GOT_TLSGD16, REL)
RELOC_TYPE (GOT_TLSGD16_LO, REL)
RELOC_TYPE (GOT_TLSGD16_HI, REL)
RELOC_TYPE (GOT_TLSGD16_HA, REL)
RELOC_TYPE (GOT_TLSLD16, REL)
RELOC_TYPE (GOT_TLSLD16_LO, REL)
RELOC_TYPE (GOT_TLSLD16_HI, REL)
RELOC_TYPE (GOT_TLSLD16_HA, REL)
RELOC_TYPE (GOT_TPREL16, REL)
RELOC_TYPE (GOT_TPREL16_LO, REL)
RELOC_TYPE (GOT_TPREL16_HI, REL)
RELOC_TYPE (GOT_TPREL16_HA, REL)
RELOC_TYPE (GOT_DTPREL16, REL)
RELOC_TYPE (GOT_DTPREL16_LO, REL)
RELOC_TYPE (GOT_DTPREL16_HI, REL)
RELOC_TYPE (GOT_DTPREL16_HA, REL)
RELOC_TYPE (EMB_NADDR32, REL) /* note 3 */
RELOC_TYPE (EMB_NADDR16, REL) /* note 3 */
RELOC_TYPE (EMB_NADDR16_LO, REL) /* note 3 */
RELOC_TYPE (EMB_NADDR16_HI, REL) /* note 3 */
RELOC_TYPE (EMB_NADDR16_HA, REL) /* note 3 */
RELOC_TYPE (EMB_SDAI16, REL) /* note 3 */
RELOC_TYPE (EMB_SDA2I16, REL) /* note 3 */
RELOC_TYPE (EMB_SDA2REL, REL) /* note 3 */
RELOC_TYPE (EMB_SDA21, REL) /* note 3 */
RELOC_TYPE (EMB_MRKREF, REL) /* note 3 */
RELOC_TYPE (EMB_RELSEC16, REL) /* note 3 */
RELOC_TYPE (EMB_RELST_LO, REL) /* note 3 */
RELOC_TYPE (EMB_RELST_HI, REL) /* note 3 */
RELOC_TYPE (EMB_RELST_HA, REL) /* note 3 */
RELOC_TYPE (EMB_BIT_FLD, REL) /* note 3 */
RELOC_TYPE (EMB_RELSDA, REL) /* note 3 */
RELOC_TYPE (DIAB_SDA21_LO, REL) /* note 3 */
RELOC_TYPE (DIAB_SDA21_HI, REL) /* note 3 */
RELOC_TYPE (DIAB_SDA21_HA, REL) /* note 3 */
RELOC_TYPE (DIAB_RELSDA_LO, REL) /* note 3 */
RELOC_TYPE (DIAB_RELSDA_HI, REL) /* note 3 */
RELOC_TYPE (DIAB_RELSDA_HA, REL) /* note 3 */
RELOC_TYPE (REL16, REL) /* note 2 */
RELOC_TYPE (REL16_LO, REL) /* note 2 */
RELOC_TYPE (REL16_HI, REL) /* note 2 */
RELOC_TYPE (REL16_HA, REL) /* note 2 */
RELOC_TYPE (TOC16, REL) /* note 2 */
/* Notes from Alan Modra:
1) These relocs should not really appear in EXEC or DYN, but they do,
primarily due to improper assembly or non-pic shared objects. They
will cause TEXTREL to be set. I marked them in the table, because
numerous people seem to think non-pic shared libs are a good idea.
2) As for (1), these relocs can appear anywhere with improper
assembler. I should probably make ld reject anything other than the
cases allowed in this table. Not seen in the wild, so I haven't
added the other cases.
3) Not used in SYSV4
*/

191
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/* Function return value location for Linux/PPC ABI.
Copyright (C) 2005, 2006, 2007, 2010, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <dwarf.h>
#define BACKEND ppc_
#include "libebl_CPU.h"
/* This is the SVR4 ELF ABI convention, but AIX and Linux do not use it. */
#define SVR4_STRUCT_RETURN 0
/* r3, or pair r3, r4, or quad r3-r6. */
static const Dwarf_Op loc_intreg[] =
{
{ .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_reg4 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_reg5 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_reg6 }, { .atom = DW_OP_piece, .number = 4 },
};
#define nloc_intreg 1
#define nloc_intregpair 4
#define nloc_intregquad 8
/* f1. */
static const Dwarf_Op loc_fpreg[] =
{
{ .atom = DW_OP_regx, .number = 33 }
};
#define nloc_fpreg 1
/* vr2. */
static const Dwarf_Op loc_vmxreg[] =
{
{ .atom = DW_OP_regx, .number = 1124 + 2 }
};
#define nloc_vmxreg 1
/* The return value is a structure and is actually stored in stack space
passed in a hidden argument by the caller. But, the compiler
helpfully returns the address of that space in r3. */
static const Dwarf_Op loc_aggregate[] =
{
{ .atom = DW_OP_breg3, .number = 0 }
};
#define nloc_aggregate 1
/* XXX We should check the SHT_GNU_ATTRIBUTES bits here (or in ppc_init). */
static bool
ppc_altivec_abi (void)
{
return true;
}
int
ppc_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
Dwarf_Die die_mem, *typedie = &die_mem;
int tag = dwarf_peeled_die_type (functypedie, typedie);
if (tag <= 0)
return tag;
Dwarf_Word size;
switch (tag)
{
case -1:
return -1;
case DW_TAG_subrange_type:
if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
{
Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
/* Fall through. */
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
{
Dwarf_Attribute attr_mem;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
&attr_mem), &size) != 0)
{
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
size = 4;
else
return -1;
}
}
if (size <= 8)
{
if (tag == DW_TAG_base_type)
{
Dwarf_Attribute attr_mem;
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (typedie,
DW_AT_encoding,
&attr_mem),
&encoding) != 0)
return -1;
if (encoding == DW_ATE_float)
{
*locp = loc_fpreg;
return nloc_fpreg;
}
}
intreg:
*locp = loc_intreg;
return size <= 4 ? nloc_intreg : nloc_intregpair;
}
aggregate:
*locp = loc_aggregate;
return nloc_aggregate;
case DW_TAG_array_type:
{
Dwarf_Attribute attr_mem;
bool is_vector;
if (dwarf_formflag (dwarf_attr_integrate (typedie, DW_AT_GNU_vector,
&attr_mem), &is_vector) == 0
&& is_vector
&& dwarf_aggregate_size (typedie, &size) == 0)
switch (size)
{
case 16:
if (ppc_altivec_abi ())
{
*locp = loc_vmxreg;
return nloc_vmxreg;
}
*locp = loc_intreg;
return nloc_intregquad;
}
}
/* Fall through. */
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
if (SVR4_STRUCT_RETURN
&& dwarf_aggregate_size (typedie, &size) == 0
&& size > 0 && size <= 8)
goto intreg;
goto aggregate;
}
/* XXX We don't have a good way to return specific errors from ebl calls.
This value means we do not understand the type, but it is well-formed
DWARF and might be valid. */
return -2;
}

184
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/* PPC specific symbolic name handling.
Copyright (C) 2004, 2005, 2007, 2014, 2015 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2004.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <elf.h>
#include <stddef.h>
#include <string.h>
#define BACKEND ppc_
#include "libebl_CPU.h"
/* Check for the simple reloc types. */
Elf_Type
ppc_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
{
switch (type)
{
case R_PPC_ADDR32:
case R_PPC_UADDR32:
return ELF_T_WORD;
case R_PPC_UADDR16:
return ELF_T_HALF;
default:
return ELF_T_NUM;
}
}
/* Check whether machine flags are valid. */
bool
ppc_machine_flag_check (GElf_Word flags)
{
return ((flags &~ (EF_PPC_EMB
| EF_PPC_RELOCATABLE
| EF_PPC_RELOCATABLE_LIB)) == 0);
}
const char *
ppc_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
{
switch (tag)
{
case DT_PPC_GOT:
return "PPC_GOT";
case DT_PPC_OPT:
return "PPC_OPT";
default:
break;
}
return NULL;
}
bool
ppc_dynamic_tag_check (int64_t tag)
{
return (tag == DT_PPC_GOT
|| tag == DT_PPC_OPT);
}
/* Look for DT_PPC_GOT. */
static bool
find_dyn_got (Elf *elf, GElf_Addr *addr)
{
size_t phnum;
if (elf_getphdrnum (elf, &phnum) != 0)
return false;
for (size_t i = 0; i < phnum; ++i)
{
GElf_Phdr phdr_mem;
GElf_Phdr *phdr = gelf_getphdr (elf, i, &phdr_mem);
if (phdr == NULL || phdr->p_type != PT_DYNAMIC)
continue;
Elf_Scn *scn = gelf_offscn (elf, phdr->p_offset);
GElf_Shdr shdr_mem;
GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
Elf_Data *data = elf_getdata (scn, NULL);
if (shdr != NULL && shdr->sh_type == SHT_DYNAMIC && data != NULL
&& shdr->sh_entsize != 0)
for (unsigned int j = 0; j < shdr->sh_size / shdr->sh_entsize; ++j)
{
GElf_Dyn dyn_mem;
GElf_Dyn *dyn = gelf_getdyn (data, j, &dyn_mem);
if (dyn != NULL && dyn->d_tag == DT_PPC_GOT)
{
*addr = dyn->d_un.d_ptr;
return true;
}
}
/* There is only one PT_DYNAMIC entry. */
break;
}
return false;
}
/* Check whether given symbol's st_value and st_size are OK despite failing
normal checks. */
bool
ppc_check_special_symbol (Elf *elf, GElf_Ehdr *ehdr, const GElf_Sym *sym,
const char *name, const GElf_Shdr *destshdr)
{
if (name == NULL)
return false;
if (strcmp (name, "_GLOBAL_OFFSET_TABLE_") == 0)
{
/* In -msecure-plt mode, DT_PPC_GOT is present and must match. */
GElf_Addr gotaddr;
if (find_dyn_got (elf, &gotaddr))
return sym->st_value == gotaddr;
/* In -mbss-plt mode, any place in the section is valid. */
return true;
}
const char *sname = elf_strptr (elf, ehdr->e_shstrndx, destshdr->sh_name);
if (sname == NULL)
return false;
/* Small data area. Normally points to .sdata, in which case we
check it is at an offset of 0x8000. It might however fall in the
.data section, in which case we cannot check the offset. The
size always should be zero. */
if (strcmp (name, "_SDA_BASE_") == 0)
return (((strcmp (sname, ".sdata") == 0
&& sym->st_value == destshdr->sh_addr + 0x8000)
|| strcmp (sname, ".data") == 0)
&& sym->st_size == 0);
if (strcmp (name, "_SDA2_BASE_") == 0)
return (strcmp (sname, ".sdata2") == 0
&& sym->st_value == destshdr->sh_addr + 0x8000
&& sym->st_size == 0);
return false;
}
/* Check if backend uses a bss PLT in this file. */
bool
ppc_bss_plt_p (Elf *elf)
{
GElf_Addr addr;
return ! find_dyn_got (elf, &addr);
}

53
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/* Linux/PPC system call ABI in DWARF register numbers.
Copyright (C) 2008 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND ppc_
#include "libebl_CPU.h"
int
ppc_syscall_abi (Ebl *ebl __attribute__ ((unused)),
int *sp, int *pc, int *callno, int args[6])
{
*sp = 1;
*pc = -1;
*callno = 0;
args[0] = 3;
args[1] = 4;
args[2] = 5;
args[3] = 6;
args[4] = 7;
args[5] = 8;
return 0;
}
__typeof (ppc_syscall_abi)
ppc64_syscall_abi __attribute__ ((alias ("ppc_syscall_abi")));

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/* s390 ABI-specified defaults for DWARF CFI.
Copyright (C) 2012, 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <dwarf.h>
#define BACKEND s390_
#include "libebl_CPU.h"
int
s390_abi_cfi (Ebl *ebl, Dwarf_CIE *abi_info)
{
static const uint8_t abi_cfi[] =
{
/* This instruction is provided in every CIE. It is not repeated here:
DW_CFA_def_cfa, ULEB128_7 (15), ULEB128_7 (96) */
/* r14 is not callee-saved but it needs to be preserved as it is pre-set
by the caller. */
DW_CFA_same_value, ULEB128_7 (14), /* r14 */
/* Callee-saved regs. */
#define SV(n) DW_CFA_same_value, ULEB128_7 (n)
SV (6), SV (7), SV (8), SV (9), SV (10), /* r6-r13, r15 */
SV (11), SV (12), SV (13), SV (15),
SV (16 + 8), SV (16 + 9), SV (16 + 10), SV (16 + 11), /* f8-f15 */
SV (16 + 12), SV (16 + 13), SV (16 + 14), SV (16 + 15)
#undef SV
};
abi_info->initial_instructions = abi_cfi;
abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
abi_info->data_alignment_factor = ebl->class == ELFCLASS64 ? 8 : 4;
abi_info->return_address_register = 14;
return 0;
}

189
elfutils/backends/s390_corenote.c Normal file
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/* S390-specific core note handling.
Copyright (C) 2012 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <inttypes.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/time.h>
#ifndef BITS
# define BITS 32
# define BACKEND s390_
#else
# define BITS 64
# define BACKEND s390x_
#endif
#include "libebl_CPU.h"
static const Ebl_Register_Location prstatus_regs[] =
{
#define GR(at, n, dwreg, b...) \
{ .offset = at * BITS/8, .regno = dwreg, .count = n, .bits = b }
GR ( 0, 1, 64, BITS), /* pswm */
GR ( 1, 1, 65, BITS, .pc_register = true ), /* pswa */
GR ( 2, 16, 0, BITS), /* r0-r15 */
GR (18, 16, 48, 32), /* ar0-ar15 */
#undef GR
};
/* orig_r2 is at offset (BITS == 32 ? 34 * 4 : 26 * 8). */
#define PRSTATUS_REGS_SIZE (BITS / 8 * (BITS == 32 ? 35 : 27))
static const Ebl_Register_Location fpregset_regs[] =
{
#define FPR(at, n, dwreg) \
{ .offset = at * 64/8, .regno = dwreg, .count = n, .bits = 64 }
/* fpc is at offset 0, see fpregset_items, it has no assigned DWARF regno.
Bytes at offsets 4 to 7 are unused. */
FPR (1 + 0, 1, 16), /* f0 */
FPR (1 + 1, 1, 20), /* f1 */
FPR (1 + 2, 1, 17), /* f2 */
FPR (1 + 3, 1, 21), /* f3 */
FPR (1 + 4, 1, 18), /* f4 */
FPR (1 + 5, 1, 22), /* f5 */
FPR (1 + 6, 1, 19), /* f6 */
FPR (1 + 7, 1, 23), /* f7 */
FPR (1 + 8, 1, 24), /* f8 */
FPR (1 + 9, 1, 28), /* f9 */
FPR (1 + 10, 1, 25), /* f10 */
FPR (1 + 11, 1, 29), /* f11 */
FPR (1 + 12, 1, 26), /* f12 */
FPR (1 + 13, 1, 30), /* f13 */
FPR (1 + 14, 1, 27), /* f14 */
FPR (1 + 15, 1, 31), /* f15 */
#undef FPR
};
static const Ebl_Core_Item fpregset_items[] =
{
{
.name = "fpc", .group = "register", .offset = 0, .type = ELF_T_WORD,
.format = 'x',
},
};
/* Do not set FPREGSET_SIZE so that we can supply fpregset_items. */
#define EXTRA_NOTES_FPREGSET \
EXTRA_REGSET_ITEMS (NT_FPREGSET, 17 * 8, fpregset_regs, fpregset_items)
#if BITS == 32
# define ULONG uint32_t
# define ALIGN_ULONG 4
# define TYPE_ULONG ELF_T_WORD
# define TYPE_LONG ELF_T_SWORD
# define UID_T uint16_t
# define GID_T uint16_t
# define ALIGN_UID_T 2
# define ALIGN_GID_T 2
# define TYPE_UID_T ELF_T_HALF
# define TYPE_GID_T ELF_T_HALF
#else
# define ULONG uint64_t
# define ALIGN_ULONG 8
# define TYPE_ULONG ELF_T_XWORD
# define TYPE_LONG ELF_T_SXWORD
# define UID_T uint32_t
# define GID_T uint32_t
# define ALIGN_UID_T 4
# define ALIGN_GID_T 4
# define TYPE_UID_T ELF_T_WORD
# define TYPE_GID_T ELF_T_WORD
#endif
#define PID_T int32_t
#define ALIGN_PID_T 4
#define TYPE_PID_T ELF_T_SWORD
/* s390 psw_compat_t has alignment 8 bytes where it is inherited from. */
#define ALIGN_PR_REG 8
#define PRSTATUS_REGSET_ITEMS \
{ \
.name = "orig_r2", .type = TYPE_LONG, .format = 'd', \
.offset = offsetof (struct EBLHOOK(prstatus), \
pr_reg[BITS == 32 ? 34 : 26]), \
.group = "register" \
}
#if BITS == 32
static const Ebl_Core_Item high_regs_items[] =
{
#define HR(n) \
{ \
.name = "high_r" #n , .group = "register", .offset = (n) * 4, \
.type = ELF_T_WORD, .format = 'x', \
}
/* Upper halves of r0-r15 are stored here.
FIXME: They are currently not combined with the r0-r15 lower halves. */
HR (0), HR (1), HR (2), HR (3), HR (4), HR (5), HR (6), HR (7),
HR (8), HR (9), HR (10), HR (11), HR (12), HR (13), HR (14), HR (15)
#undef HR
};
#define EXTRA_NOTES_HIGH_GPRS \
EXTRA_ITEMS (NT_S390_HIGH_GPRS, 16 * 4, high_regs_items)
#else /* BITS == 64 */
#define EXTRA_NOTES_HIGH_GPRS
#endif /* BITS == 64 */
static const Ebl_Core_Item last_break_items[] =
{
{
.name = "last_break", .group = "system", .offset = BITS == 32 ? 4 : 0,
.type = BITS == 32 ? ELF_T_WORD : ELF_T_XWORD, .format = 'x',
},
};
static const Ebl_Core_Item system_call_items[] =
{
{
.name = "system_call", .group = "system", .offset = 0, .type = ELF_T_WORD,
.format = 'd',
},
};
#define EXTRA_NOTES \
EXTRA_NOTES_FPREGSET \
EXTRA_NOTES_HIGH_GPRS \
EXTRA_ITEMS (NT_S390_LAST_BREAK, 8, last_break_items) \
EXTRA_ITEMS (NT_S390_SYSTEM_CALL, 4, system_call_items)
#include "linux-core-note.c"

79
elfutils/backends/s390_init.c Normal file
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/* Initialization of S/390 specific backend library.
Copyright (C) 2005, 2006, 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#define BACKEND s390_
#define RELOC_PREFIX R_390_
#include "libebl_CPU.h"
/* This defines the common reloc hooks based on arm_reloc.def. */
#include "common-reloc.c"
extern __typeof (s390_core_note) s390x_core_note;
const char *
s390_init (Elf *elf __attribute__ ((unused)),
GElf_Half machine __attribute__ ((unused)),
Ebl *eh,
size_t ehlen)
{
/* Check whether the Elf_BH object has a sufficent size. */
if (ehlen < sizeof (Ebl))
return NULL;
/* We handle it. */
eh->name = "IBM S/390";
s390_init_reloc (eh);
HOOK (eh, reloc_simple_type);
HOOK (eh, register_info);
HOOK (eh, return_value_location);
if (eh->class == ELFCLASS64)
eh->core_note = s390x_core_note;
else
HOOK (eh, core_note);
HOOK (eh, abi_cfi);
/* gcc/config/ #define DWARF_FRAME_REGISTERS 34.
But from the gcc/config/s390/s390.h "Register usage." comment it looks as
if #32 (Argument pointer) and #33 (Condition code) are not used for
unwinding. */
eh->frame_nregs = 32;
HOOK (eh, set_initial_registers_tid);
if (eh->class == ELFCLASS32)
HOOK (eh, normalize_pc);
HOOK (eh, unwind);
/* Only the 64-bit format uses the incorrect hash table entry size. */
if (eh->class == ELFCLASS64)
eh->sysvhash_entrysize = sizeof (Elf64_Xword);
return MODVERSION;
}

95
elfutils/backends/s390_initreg.c Normal file
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/* Fetch live process registers from TID.
Copyright (C) 2013 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "system.h"
#include <assert.h>
#if defined(__s390__) && defined(__linux__)
# include <sys/user.h>
# include <sys/ptrace.h>
# include <asm/ptrace.h>
#endif
#define BACKEND s390_
#include "libebl_CPU.h"
bool
s390_set_initial_registers_tid (pid_t tid __attribute__ ((unused)),
ebl_tid_registers_t *setfunc __attribute__ ((unused)),
void *arg __attribute__ ((unused)))
{
#if !defined(__s390__) || !defined(__linux__)
return false;
#else /* __s390__ */
struct user user_regs;
ptrace_area parea;
parea.process_addr = (uintptr_t) &user_regs;
parea.kernel_addr = 0;
parea.len = sizeof (user_regs);
if (ptrace (PTRACE_PEEKUSR_AREA, tid, &parea, NULL) != 0)
return false;
/* If we run as s390x we get the 64-bit registers of tid.
But -m31 executable seems to use only the 32-bit parts of its
registers so we ignore the upper half. */
Dwarf_Word dwarf_regs[16];
for (unsigned u = 0; u < 16; u++)
dwarf_regs[u] = user_regs.regs.gprs[u];
if (! setfunc (0, 16, dwarf_regs, arg))
return false;
/* Avoid conversion double -> integer. */
eu_static_assert (sizeof user_regs.regs.fp_regs.fprs[0]
== sizeof dwarf_regs[0]);
for (unsigned u = 0; u < 16; u++)
{
// Store the double bits as is in the Dwarf_Word without conversion.
union
{
double d;
Dwarf_Word w;
} fpr = { .d = user_regs.regs.fp_regs.fprs[u] };
dwarf_regs[u] = fpr.w;
}
if (! setfunc (16, 16, dwarf_regs, arg))
return false;
dwarf_regs[0] = user_regs.regs.psw.addr;
return setfunc (-1, 1, dwarf_regs, arg);
#endif /* __s390__ */
}
void
s390_normalize_pc (Ebl *ebl __attribute__ ((unused)), Dwarf_Addr *pc)
{
assert (ebl->class == ELFCLASS32);
/* Clear S390 bit 31. */
*pc &= (1U << 31) - 1;
}

146
elfutils/backends/s390_regs.c Normal file
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/* Register names and numbers for S/390 DWARF.
Copyright (C) 2006 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <dwarf.h>
#define BACKEND s390_
#include "libebl_CPU.h"
/*
zseries (64)
0-15 gpr0-gpr15 x
16-19 fpr[0246]
20-24 fpr[13578]
25-27 fpr1[024]
28 fpr9
29-31 fpr1[135]
32-47 cr0-cr15 x
48-63 ar0-ar15 x
64 psw_mask
65 psw_address
*/
ssize_t
s390_register_info (Ebl *ebl __attribute__ ((unused)),
int regno, char *name, size_t namelen,
const char **prefix, const char **setname,
int *bits, int *type)
{
if (name == NULL)
return 66;
if (regno < 0 || regno > 65 || namelen < 7)
return -1;
*prefix = "%";
*bits = ebl->class == ELFCLASS64 ? 64 : 32;
*type = DW_ATE_unsigned;
if (regno < 16)
{
*setname = "integer";
*type = DW_ATE_signed;
}
else if (regno < 32)
{
*setname = "FPU";
*type = DW_ATE_float;
*bits = 64;
}
else if (regno < 48 || regno > 63)
*setname = "control";
else
{
*setname = "access";
*bits = 32;
}
switch (regno)
{
case 0 ... 9:
name[0] = 'r';
name[1] = regno + '0';
namelen = 2;
break;
case 10 ... 15:
name[0] = 'r';
name[1] = '1';
name[2] = regno - 10 + '0';
namelen = 3;
break;
case 16 ... 31:
name[0] = 'f';
regno = (regno & 8) | ((regno & 4) >> 2) | ((regno & 3) << 1);
namelen = 1;
if (regno >= 10)
{
regno -= 10;
name[namelen++] = '1';
}
name[namelen++] = regno + '0';
break;
case 32 + 0 ... 32 + 9:
case 48 + 0 ... 48 + 9:
name[0] = regno < 48 ? 'c' : 'a';
name[1] = (regno & 15) + '0';
namelen = 2;
break;
case 32 + 10 ... 32 + 15:
case 48 + 10 ... 48 + 15:
name[0] = regno < 48 ? 'c' : 'a';
name[1] = '1';
name[2] = (regno & 15) - 10 + '0';
namelen = 3;
break;
case 64:
return stpcpy (name, "pswm") + 1 - name;
case 65:
*type = DW_ATE_address;
return stpcpy (name, "pswa") + 1 - name;
default:
*setname = NULL;
return 0;
}
name[namelen++] = '\0';
return namelen;
}

91
elfutils/backends/s390_reloc.def Normal file
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/* List the relocation types for s390. -*- C -*-
Copyright (C) 2005, 2006, 2015 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
/* NAME, REL|EXEC|DYN */
RELOC_TYPE (NONE, 0)
RELOC_TYPE (8, REL|EXEC|DYN)
RELOC_TYPE (12, REL|EXEC|DYN)
RELOC_TYPE (16, REL|EXEC|DYN)
RELOC_TYPE (32, REL|EXEC|DYN)
RELOC_TYPE (PC32, REL|EXEC|DYN)
RELOC_TYPE (GOT12, REL)
RELOC_TYPE (GOT32, REL)
RELOC_TYPE (PLT32, REL)
RELOC_TYPE (COPY, EXEC|DYN)
RELOC_TYPE (GLOB_DAT, EXEC|DYN)
RELOC_TYPE (JMP_SLOT, EXEC|DYN)
RELOC_TYPE (RELATIVE, EXEC|DYN)
RELOC_TYPE (GOTOFF32, REL)
RELOC_TYPE (GOTPC, REL)
RELOC_TYPE (GOT16, REL)
RELOC_TYPE (PC16, REL|EXEC|DYN)
RELOC_TYPE (PC16DBL, REL|EXEC|DYN)
RELOC_TYPE (PLT16DBL, REL)
RELOC_TYPE (PC32DBL, REL|EXEC|DYN)
RELOC_TYPE (PLT32DBL, REL)
RELOC_TYPE (GOTPCDBL, REL)
RELOC_TYPE (64, REL|EXEC|DYN)
RELOC_TYPE (PC64, REL|EXEC|DYN)
RELOC_TYPE (GOT64, REL)
RELOC_TYPE (PLT64, REL)
RELOC_TYPE (GOTENT, REL)
RELOC_TYPE (GOTOFF16, REL)
RELOC_TYPE (GOTOFF64, REL)
RELOC_TYPE (GOTPLT12, REL)
RELOC_TYPE (GOTPLT16, REL)
RELOC_TYPE (GOTPLT32, REL)
RELOC_TYPE (GOTPLT64, REL)
RELOC_TYPE (GOTPLTENT, REL)
RELOC_TYPE (PLTOFF16, REL)
RELOC_TYPE (PLTOFF32, REL)
RELOC_TYPE (PLTOFF64, REL)
RELOC_TYPE (TLS_LOAD, REL)
RELOC_TYPE (TLS_GDCALL, REL)
RELOC_TYPE (TLS_LDCALL, REL)
RELOC_TYPE (TLS_GD32, REL)
RELOC_TYPE (TLS_GD64, REL)
RELOC_TYPE (TLS_GOTIE12, REL)
RELOC_TYPE (TLS_GOTIE32, REL)
RELOC_TYPE (TLS_GOTIE64, REL)
RELOC_TYPE (TLS_LDM32, REL)
RELOC_TYPE (TLS_LDM64, REL)
RELOC_TYPE (TLS_IE32, REL)
RELOC_TYPE (TLS_IE64, REL)
RELOC_TYPE (TLS_IEENT, REL)
RELOC_TYPE (TLS_LE32, REL)
RELOC_TYPE (TLS_LE64, REL)
RELOC_TYPE (TLS_LDO32, REL)
RELOC_TYPE (TLS_LDO64, REL)
RELOC_TYPE (TLS_DTPMOD, DYN)
RELOC_TYPE (TLS_DTPOFF, DYN)
RELOC_TYPE (TLS_TPOFF, DYN)
RELOC_TYPE (20, REL|EXEC|DYN)
RELOC_TYPE (GOT20, REL)
RELOC_TYPE (GOTPLT20, REL)
RELOC_TYPE (TLS_GOTIE20, REL)

144
elfutils/backends/s390_retval.c Normal file
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/* Function return value location for S/390 ABI.
Copyright (C) 2006, 2007, 2014 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <dwarf.h>
#define BACKEND s390_
#include "libebl_CPU.h"
/* %r2, or pair %r2, %r3. */
static const Dwarf_Op loc_intreg[] =
{
{ .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 4 },
{ .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 4 },
};
#define nloc_intreg 1
#define nloc_intregpair 4
/* %f0. */
static const Dwarf_Op loc_fpreg[] =
{
{ .atom = DW_OP_reg16 },
};
#define nloc_fpreg 1
/* The return value is a structure and is actually stored in stack space
passed in a hidden argument by the caller. But, the compiler
helpfully returns the address of that space in %r2. */
static const Dwarf_Op loc_aggregate[] =
{
{ .atom = DW_OP_breg2, .number = 0 }
};
#define nloc_aggregate 1
int
s390_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
{
/* Start with the function's type, and get the DW_AT_type attribute,
which is the type of the return value. */
Dwarf_Die die_mem, *typedie = &die_mem;
int tag = dwarf_peeled_die_type (functypedie, typedie);
if (tag <= 0)
return tag;
Dwarf_Word size;
switch (tag)
{
case -1:
return -1;
case DW_TAG_subrange_type:
if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
{
Dwarf_Attribute attr_mem, *attr;
attr = dwarf_attr (typedie, DW_AT_type, &attr_mem);
typedie = dwarf_formref_die (attr, &die_mem);
tag = DWARF_TAG_OR_RETURN (typedie);
}
/* Fall through. */
case DW_TAG_base_type:
case DW_TAG_enumeration_type:
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
{
Dwarf_Die cudie;
uint8_t asize;
if (dwarf_diecu (typedie, &cudie, &asize, NULL) == NULL)
return -1;
Dwarf_Attribute attr_mem;
if (dwarf_formudata (dwarf_attr (typedie, DW_AT_byte_size,
&attr_mem), &size) != 0)
{
if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
size = asize;
else
return -1;
}
if (tag == DW_TAG_base_type)
{
Dwarf_Word encoding;
if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
&attr_mem),
&encoding) != 0)
return -1;
if (encoding == DW_ATE_float && size <= 8)
{
*locp = loc_fpreg;
return nloc_fpreg;
}
}
if (size <= 8)
{
*locp = loc_intreg;
return size <= asize ? nloc_intreg : nloc_intregpair;
}
}
/* Fall through. */
case DW_TAG_structure_type:
case DW_TAG_class_type:
case DW_TAG_union_type:
case DW_TAG_array_type:
*locp = loc_aggregate;
return nloc_aggregate;
}
/* XXX We don't have a good way to return specific errors from ebl calls.
This value means we do not understand the type, but it is well-formed
DWARF and might be valid. */
return -2;
}

56
elfutils/backends/s390_symbol.c Normal file
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/* S/390-specific symbolic name handling.
Copyright (C) 2005 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at
your option) any later version
or both in parallel, as here.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <elf.h>
#include <stddef.h>
#define BACKEND s390_
#include "libebl_CPU.h"
/* Check for the simple reloc types. */
Elf_Type
s390_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
{
switch (type)
{
case R_390_64:
return ELF_T_SXWORD;
case R_390_32:
return ELF_T_SWORD;
case R_390_16:
return ELF_T_HALF;
case R_390_8:
return ELF_T_BYTE;
default:
return ELF_T_NUM;
}
}

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