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a69b1311b28ba80fc122fc0837ec149d1b2999e6
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152 Commits

Author SHA1 Message Date
Hans Wennborg
a69b1311b2 Allocate the IntervalMap in ELF.h on the heap to work around MSVC alignment bug (PR24113) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242157 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-14 16:27:16 +00:00
Michael J. Spencer
d37a9dfc0b [Object][ELF] Handle the dynamic string table in files without a section table. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241937 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-10 20:11:57 +00:00
NAKAMURA Takumi
89a6fba75e llvm/Object/ELF.h: Appease g++-4.7.2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241895 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-10 08:43:41 +00:00
Michael J. Spencer
478d483d7e Fix shadowing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241870 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-09 22:42:21 +00:00
Michael J. Spencer
8109763d68 [Object][ELF] Support dumping hash-tables from files with no section table. 
This time without breaking the bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241869 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-09 22:32:24 +00:00
Adrian Prantl
2efb9f7c3e Temporarily reverting 241765, 241768, and 241772 to unbreak the build bots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241781 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-09 02:14:49 +00:00
Michael J. Spencer
43dce9c732 Fix typename issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241768 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-09 00:46:24 +00:00
Michael J. Spencer
7d0e4c73d4 [Object][ELF] Support dumping hash-tables from files with no section table. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241765 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-09 00:21:06 +00:00
Rafael Espindola
cca9ef3247 Delete dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241353 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-03 14:46:17 +00:00
Rafael Espindola
abdd9e7330 Continue to remove the notion that ELF has dynamic and static symbols. 
The ELFObjectFile now just reasons about a section/index pair, removing
one of the users that force ELF.h to maintain the difference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241344 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-03 12:00:05 +00:00
Rafael Espindola
3a27979633 Handle .dynsym a bit more like we handle .symtab. 
They have the same format and we find them in the same way, no reason to handle
them differently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241280 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-02 16:03:38 +00:00
Rafael Espindola
adc9db9825 Use default member initializes. NFC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241277 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-02 15:48:05 +00:00
Rafael Espindola
e4e6f29c93 Improve error message. 
Thanks to Sean Silva for the suggestion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241255 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-02 11:48:48 +00:00
Rafael Espindola
df3edb6d36 Return ErrorOr from getSection. 
This also improves the logic of what is an error:

* getSection(uint_32): only return an error if the index is out of bounds. The
  index 0 corresponds to a perfectly valid entry.
* getSection(Elf_Sym): Returns null for symbols that normally don't have
  sections and error for out of bound indexes.

In many places this just moves the report_fatal_error up the stack, but those
can then be fixed in smaller patches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241156 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-07-01 12:56:27 +00:00
Rafael Espindola
4a04da337e Remove Elf_Shdr_Iter. Diagnose files with invalid section header sizes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241109 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-30 19:58:10 +00:00
Rafael Espindola
28bec63a7e Fix the name of the iterator functions to match the coding standards. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241074 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-30 15:33:44 +00:00
Rafael Espindola
e8ff062325 Report an error on invalid sh_entsize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241070 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-30 14:59:20 +00:00
NAKAMURA Takumi
d6751a82b3 ELF.h: Prune obsolete comments removed in r240996. [-Wdocumentation] 
FIXME: Should they be moved onto Elf_Sym_Impl::getNmae()?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241044 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-30 05:59:13 +00:00
Rafael Espindola
3d176ae165 Convert obj->getSymbolName to sym->getName. 
I doesn't depend on the object anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240996 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-29 21:24:55 +00:00
Rafael Espindola
9a6c902332 Factor out the checking of string tables. 
This moves the error checking for string tables to getStringTable which returns
an ErrorOr<StringRef>.

This improves error checking, makes it uniform across all string tables and
makes it possible to check them once instead of once per name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240950 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-29 14:39:25 +00:00
Rafael Espindola
db89b93b44 Convert an assert that can fail into error checking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240944 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-29 14:02:24 +00:00
Rafael Espindola
e8f07a7eb3 Remove Elf_Sym_Iter. 
It was a fairly broken concept for an ELF only class.

An ELF file can have two symbol tables, but they have exactly the same
format. There is no concept of a dynamic or a static symbol. Storing this
on the iterator also makes us do more work per symbol than necessary. To fetch
a name we would:

* Find if we had a static or a dynamic symbol.
* Look at the corresponding symbol table and find the string table section.
* Look at the string table section to fetch its contents.
* Compute the name as a substring of the string table.

All but the last step can be done per symbol table instead of per symbol. This
is a step in that direction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240939 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-29 12:38:31 +00:00
Rafael Espindola
aaaa38cb95 Fix error handling in getString and simplify callers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240810 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-26 18:42:17 +00:00
Rafael Espindola
b82800d00e Delete dead code. NFC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240807 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-26 18:32:53 +00:00
Michael J. Spencer
7358cbc837 [ELF] Add some accessors for lld. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240730 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-25 23:40:41 +00:00
Michael J. Spencer
4cbb2db3ab [Object][ELF] Add support for dumping dynamic relocations when sections are stripped. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240703 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-25 21:47:32 +00:00
Rafael Espindola
1e6b8f552c Don't get confused with sections whose section number is reserved. 
It is perfectly possible for SHNDX to contain indexes that have the same value
as reserved st_shndx values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240544 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-24 14:48:54 +00:00
Alexey Samsonov
85529a57b4 Revert "[Object, ELF] Fix segmentation fault in ELFFile::getSectionName()." 
This reverts commit r239124.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239125 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-04 23:58:31 +00:00
Alexey Samsonov
83f903f352 [Object, ELF] Fix segmentation fault in ELFFile::getSectionName(). 
Don't do a null dereference if .shstrtab section is missing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239124 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-04 23:40:23 +00:00
Rafael Espindola
201a551929 Fix the interpretation of a 0 st_name. 
The ELF spec is very clear:

-----------------------------------------------------------------------------
If the value is non-zero, it represents a string table index that gives the
symbol name. Otherwise, the symbol table entry has no name.
--------------------------------------------------------------------------

In particular, a st_name of 0 most certainly doesn't mean that the symbol has
the same name as the section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238899 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-03 05:14:22 +00:00
Rafael Espindola
9751e35f20 Simplify now that we always use an alignment of 2 for ELF files. 
This saves 123144 bytes out of llvm-nm on powerpc64le.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238824 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-06-02 12:05:27 +00:00
Alexey Samsonov
8ecf661ef1 Object, ELF: Use error code instead of calling report_fatal_error() 
Make createELFObjectFile() return object_error::parse_failed on
encountering invalid ELF file, instead of crashing the program.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238481 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-05-28 20:25:42 +00:00
Shankar Easwaran
abc795d1f6 [Object][ELF] ELFEntityIterator : Add operators for random access 
Fix review comments from djasper.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232494 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-03-17 15:44:20 +00:00
Shankar Easwaran
64a7eb58cd [Object][ELF] ELFEntityIterator : Add operators for random access 
Add operators add/subtract for random access. This is essentially used by
lld.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232453 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-03-17 02:12:35 +00:00
David Blaikie
f7699e85c0 Remove some explicit copy assignment operators is favor of implicit ones, as their presence makes the use of the implicit copy ctor deprecated in C++11 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231102 91177308-0d34-0410-b5e6-96231b3b80d8
 2015-03-03 19:20:13 +00:00
Craig Topper
3512034554 Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216525 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-08-27 05:25:25 +00:00
Alp Toker
bb7ad610ef Fix the MSVC build following r212382 
Looks like the casts are needed there after all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212399 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-07-06 10:54:41 +00:00
Alp Toker
1a5e5e3814 Don't use StringRef iterator functions for data access 
And also remove some redundant casts from r212371.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212397 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-07-06 10:32:55 +00:00
Rafael Espindola
db8cb2223d This only needs a StringRef. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212371 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-07-05 11:38:52 +00:00
Ed Maste
b880c129ec llvm-objdump: don't assert if ELF file has no sections 
FreeBSD core files, for example, have no sections (only program headers).

llvm.org/pr20139
Differential Revision: http://reviews.llvm.org/D4323


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211904 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-06-27 16:37:20 +00:00
Rafael Espindola
5c792faa0e Don't use 'using std::error_code' in include/llvm. 
This should make sure that most new uses use the std prefix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210835 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-06-12 21:46:39 +00:00
Simon Atanasyan
d126407627 [Object][ELF] Range-based loop simplification. 
No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210164 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-06-04 05:51:44 +00:00
Rafael Espindola
1bab2d5399 Use error_code() instead of error_code::succes() 
There is no std::error_code::success, so this removes much of the noise
in transitioning to std::error_code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209952 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-05-31 01:37:45 +00:00
Simon Atanasyan
3b98af544f Add range access to ELFFile's sections collection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207952 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-05-05 06:48:34 +00:00
Matheus Almeida
737de9db8e [mips] Emit all three relocation operations for each relocation entry on Mips64 big-endian systems. 
Summary:
The N64 ABI allows up to three operations to be specified per relocation record
independently of the endianness.

Reviewers: dsanders

Reviewed By: dsanders

Differential Revision: http://reviews.llvm.org/D3529

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207636 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-04-30 11:21:10 +00:00
Craig Topper
e703fcb975 [C++] Use 'nullptr'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207083 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-04-24 06:44:33 +00:00
Rui Ueyama
b5213bb1b0 Fix wrong iterator type 
ELFEntityIterator does not implement RandomAccessIterator. It does
not even implement BidirectionalIterator.

This patch fixes LLD build issue when compiled with MSVC2013 with
debug: MSVC's find_if checks if the start iterator is before the end
iterator in the sense of operator< if it declares implementing
RandomAccessIterator. If a class does not have operator<, it fails
to compile.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206825 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-04-21 23:00:42 +00:00
Craig Topper
0b6cb7104b [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206252 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-04-15 06:32:26 +00:00
Craig Topper
4266ae8067 [C++11] More 'nullptr' conversion or in some cases just using a boolean check instead of comparing to nullptr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206129 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-04-13 04:57:38 +00:00
Benjamin Kramer
c1dafe8dc3 [C++11] Replace LLVM-style type traits with C++11 standard ones. 
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203242 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-03-07 14:42:25 +00:00