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69 Commits

Author SHA1 Message Date
Tim Northover
1c2b2f9c56 Teach MachO which sections contain code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170349 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-17 17:59:32 +00:00
Eric Christopher
ef8581479e Revert "Add a funciton to get the segment name of a section." 
This reverts commit r170095 since it appears to be breaking the bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170105 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-13 06:36:18 +00:00
Rafael Espindola
e3ec87a6f7 Add a funciton to get the segment name of a section. 
On MachO, sections also have segment names. When a tool looking at a .o file
prints a segment name, this is what they mean. In reality, a .o has only one,
anonymous, segment.

This patch adds a MachO only function to fetch that segment name. I named it
getSectionFinalSegmentName since the main use for the name seems to be informing
the linker with segment this section should go to.

The patch also changes MachOObjectFile::getSectionName to return just the
section name instead of computing SegmentName,SectionName.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170095 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-13 04:07:18 +00:00
Rafael Espindola
9ee68e3f72 Remove some dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169963 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-12 06:18:15 +00:00
Chandler Carruth
d04a8d4b33 Use the new script to sort the includes of every file under lib. 
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-03 16:50:05 +00:00
Benjamin Kramer
f56c3e28b9 Object: Pass the buffer name through when making a copy. 
Should bring the buildbots back to life.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168935 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 20:08:03 +00:00
Jim Grosbach
596e474101 Fix a memory leak in MachOObjectFile. 
MachOObjectFile owns a MachOObj, but never frees it. Both MachOObjectFile
and MachOObj want to own the MemoryBuffer, though, so we have to be careful
and give them each one of their own.

Thanks to Greg Clayton, Eric Christopher and Michael Spencer for helping
figure out what's going wrong here.

rdar://12561773

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168923 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-29 19:14:11 +00:00
Tim Northover
a41dce3c64 Add interface for querying object files for symbol values. 
Currently only implemented for ELF.

Patch by Amara Emerson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166918 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-29 10:47:00 +00:00
Andrew Kaylor
30b20ebdd3 Cosmetic changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165588 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-10 01:45:52 +00:00
Andrew Kaylor
3a129c8592 This patch adds new functions to the SectionRef and ObjectFile interfaces to determine whether or not a section is meant to be read-only. These functions will be used by the MCJIT RuntimeDyld to give hints to the memory manager during the object loading process in a future patch. 
Patch by Ashok Thirumurthi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165586 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-10 01:41:33 +00:00
Craig Topper
e329810482 Mark some static arrays as const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157377 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-24 06:35:32 +00:00
Eli Friedman
41827f9ba2 Fix the implementation of MachOObjectFile::isSectionZeroInit so it follows the MachO spec. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155976 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-02 02:31:28 +00:00
Benjamin Kramer
8fc7d5c35c Remove unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154661 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-13 08:09:12 +00:00
Preston Gurd
c68dda815e This patch improves the MCJIT runtime dynamic loader by adding new handling 
of zero-initialized sections, virtual sections and common symbols
and preventing the loading of sections which are not required for
execution such as debug information.

Patch by Andy Kaylor!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154610 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-12 20:13:57 +00:00
Danil Malyshev
3fd9b84223 Add a constructor for DataRefImpl and remove excess initialization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154371 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-10 01:54:44 +00:00
David Meyer
6f9489a86f [Object] 
Make Binary::TypeID more granular, to distinguish between ELF 32/64 little/big




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152435 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-09 20:41:57 +00:00
David Meyer
97f7787bfb [Object] 
Add ObjectFile::getLoadName() for retrieving the soname/installname of a shared object.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151845 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-01 22:19:54 +00:00
David Meyer
5c2b4ea73c [Object] 
* Add begin_dynamic_table() / end_dynamic_table() private interface to ELFObjectFile.
* Add begin_libraries_needed() / end_libraries_needed() interface to ObjectFile, for grabbing the list of needed libraries for a shared object or dynamic executable.
* Implement this new interface completely for ELF, leave stubs for COFF and MachO.
* Add 'llvm-readobj' tool for dumping ObjectFile information.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151785 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-01 01:36:50 +00:00
David Meyer
2c67727046 [Object] Add symbol attribute flags: ST_ThreadLocal, ST_Common, and ST_Undefined. Implement these completely for ELF. 
Rename ST_External to ST_Unknown, and slightly change its semantics. It now only indicates that the symbol's type
is unknown, not that the symbol is undefined. (For that, use ST_Undefined).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151696 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-29 02:11:55 +00:00
David Meyer
c46255a32e In the ObjectFile interface, replace isInternal(), isAbsolute(), isGlobal(), and isWeak(), with a bitset of flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151670 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-28 23:47:53 +00:00
Michael J. Spencer
dfa1896b6b [Object] Add {begin,end}_dynamic_symbols stubs and implementation for ELF. 
Add -D option to llvm-nm to dump dynamic symbols.

Patch by David Meyer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151600 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-28 00:40:37 +00:00
Danil Malyshev
b0436a7305 Fixed ObjectFile functions: 
- getSymbolOffset() renamed as getSymbolFileOffset()
- getSymbolFileOffset(), getSymbolAddress(), getRelocationAddress() returns same result for ELFObjectFile, MachOObjectFile and COFFObjectFile.
- added getRelocationOffset()
- fixed MachOObjectFile::getSymbolSize()
- fixed MachOObjectFile::getSymbolSection()
- fixed MachOObjectFile::getSymbolOffset() for symbols without section data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145408 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-29 17:40:10 +00:00
Chandler Carruth
790552c20f Revert r145180 as it is causing test failures on all the bots. 
Original commit message:
Fixed ObjectFile functions:
- getSymbolOffset() renamed as getSymbolFileOffset()
- getSymbolFileOffset(), getSymbolAddress(), getRelocationAddress() returns same result for ELFObjectFile, MachOObjectFile and COFFObjectFile.
- added getRelocationOffset()
- fixed MachOObjectFile::getSymbolSize()
- fixed MachOObjectFile::getSymbolSection()
- fixed MachOObjectFile::getSymbolOffset() for symbols without section data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145182 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-27 10:37:47 +00:00
Danil Malyshev
9b24738bd1 Fixed ObjectFile functions: 
- getSymbolOffset() renamed as getSymbolFileOffset()
- getSymbolFileOffset(), getSymbolAddress(), getRelocationAddress() returns same result for ELFObjectFile, MachOObjectFile and COFFObjectFile.
- added getRelocationOffset()
- fixed MachOObjectFile::getSymbolSize()
- fixed MachOObjectFile::getSymbolSection()
- fixed MachOObjectFile::getSymbolOffset() for symbols without section data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145180 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-27 10:12:52 +00:00
Owen Anderson
b28bdbf846 If we're searching for a symbol reference to pretty-print a scattered relocation address, and we don't find a symbol table entry, try section begin addresses as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143151 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-27 21:53:50 +00:00
Owen Anderson
eb6bd33995 Fix pretty printing of i386 local sect diff relocations, TLV relocations, and x86_64 TLV relocations in MachO. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143140 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-27 20:46:09 +00:00
Owen Anderson
1832f4d94e Add support for scattered relocations to the MachO relocatation pretty printer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143051 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-26 20:42:54 +00:00
Owen Anderson
ef22f78c68 The order of the two symbol listings in a Macho x86_64 subtractor relocation is reversed from what seems intuitive to me. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143035 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-26 17:28:49 +00:00
Owen Anderson
f8261e7d07 Include the full 64 bits of relocation data in the type info for MachO relocations, so that we can recognize scattered relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143033 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-26 17:10:22 +00:00
Owen Anderson
9472b8d220 Expand relocation type field to 64 bits. MachO scattered relocations require 33 bits of type info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143032 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-26 17:08:49 +00:00
Owen Anderson
929e27cc3c Improve pretty printing of GOT relocations in MachO on x86_64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143031 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-26 17:05:20 +00:00
Eric Christopher
b64541fc72 Remove unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143011 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-26 03:47:16 +00:00
Owen Anderson
c8aa726ec2 Remove extraneous printing of "-PC". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142970 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-25 20:44:00 +00:00
Owen Anderson
0685e94895 Add support for the notion of "hidden" relocations. On MachO, these are relocation entries that are used as additional information for other, real relocations, rather than being relocations themselves. 
I'm not familiar enough with ELF or COFF to know if they should have any relocations marked hidden.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142961 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-25 20:35:53 +00:00
Owen Anderson
013d756310 Teach the MachO relocation pretty-printer to interpret ARM half-relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142938 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-25 18:48:41 +00:00
Owen Anderson
d8fa76d4be More fixes and improvements to MachO relocation pretty-printing, particular for x86 and x86_64 relocations with addends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142875 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-24 23:20:07 +00:00
Owen Anderson
0135fe1854 Get relocation parsing/dumping to a mostly-working state for MachO files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142852 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-24 21:44:00 +00:00
Owen Anderson
5f4e02cbf1 Stub out some of the MachO relocation decoding hooks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142840 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-24 20:19:18 +00:00
Owen Anderson
a48aab924d STABS symbols are debug symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142673 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-21 19:26:54 +00:00
Michael J. Spencer
9b2b812fea Object: Add isSymbolAbsolute and getSymbolSection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142317 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-17 23:54:46 +00:00
Michael J. Spencer
c38c36a8c4 Object: Add isSymbolWeak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142316 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-17 23:54:22 +00:00
Michael J. Spencer
1130a799ab Object: Fix redundant name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142238 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-17 20:19:29 +00:00
Owen Anderson
95f8db4d4d The VMAs stored in the symbol table of a MachO file are absolute addresses, not offsets from the section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141828 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-12 22:37:10 +00:00
Owen Anderson
10a8c62d46 Don't label a STAB debugging symbol as a function symbol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141824 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-12 22:23:12 +00:00
Owen Anderson
cd74988fb9 sectionContainsSymbol needs to be based on VMA's rather than section indices to properly account for files with segment load commands that contain no sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141822 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-12 22:21:32 +00:00
Owen Anderson
41242942fc Section indices in MachO symbol tables begin at 1, not 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141815 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-12 21:43:24 +00:00
Owen Anderson
f7c93a3867 Expose MachOObjectFile externally, like we do for COFF. First step in reducing the amount of special-purpose code needed for llvm-objdump. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141684 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-11 17:32:27 +00:00
Michael J. Spencer
15565ad758 Fix warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141597 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-10 23:36:56 +00:00
Michael J. Spencer
e2f2f07be7 Object: add getSectionAlignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141581 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-10 21:55:43 +00:00
Michael J. Spencer
4344b1ef9b Change relocation API to be per section. This time without breaking GCC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141385 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-07 19:25:32 +00:00