Commit Graph

198 Commits

Author SHA1 Message Date
Rafael Espindola
f6cfc15705 Convert MachOObjectFile to a template.
For now it is templated only on being 64 or 32 bits. I will add little/big
endian next.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179097 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09 14:49:08 +00:00
Rafael Espindola
7df9c57651 Add a SymbolTableEntryBase.
Use it when we don't need to know if we have a 32 or 64 bit SymbolTableEntry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179074 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-09 00:22:58 +00:00
Rafael Espindola
3388589fc1 Add a SectionBase struct.
Use it to share code and when we don't need to know if we have a 32 or 64
bit Section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179072 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-08 23:57:13 +00:00
Rafael Espindola
335f1d46d8 Template the MachO types over the word size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179051 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-08 20:45:01 +00:00
Rafael Espindola
9d55c099d6 Add all 4 MachO object types. Use the stored type to implement is64Bits().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179021 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-08 13:25:33 +00:00
Rafael Espindola
8764c8979c Make MachOObjectFile independent from MachOObject.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178998 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 20:01:29 +00:00
Rafael Espindola
433611bdf3 Implement MachOObjectFile::getHeader directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178994 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 19:26:57 +00:00
Rafael Espindola
0f08eb1359 Implement MachOObjectFile::getHeaderSize and MachOObjectFile::getData.
These were the last missing forwarding functions. Also consistently use
the forwarding functions instead of using MachOObj directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178992 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 19:05:30 +00:00
Rafael Espindola
6ab85a81d7 Remove LoadCommandInfo now that we always have a pointer to the command.
LoadCommandInfo was needed to keep a command and its offset in the file. Now
that we always have a pointer to the command, we don't need the offset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178991 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 18:42:06 +00:00
Rafael Espindola
77638d9110 Add MachOObjectFile::LoadCommandInfo.
This avoids using MachOObject::getLoadCommandInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178990 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 18:08:12 +00:00
Rafael Espindola
6f1f33915a Construct MachOObject in MachOObjectFile's constructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178988 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 16:58:48 +00:00
Rafael Espindola
2c6f997290 Remove unused argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178987 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 16:40:00 +00:00
Rafael Espindola
3eff318cba Remove MachOObjectFile::getObject.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178986 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 16:07:35 +00:00
Rafael Espindola
0be4eafd9c Remove two uses of getObject.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178985 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 15:46:05 +00:00
Rafael Espindola
1efa60453b Remove usage of InMemoryStruct in getSymbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178984 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 15:35:18 +00:00
Rafael Espindola
7ea2e48694 Remove a use of InMemoryStruct in llvm-readobj.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178981 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 15:05:12 +00:00
Rafael Espindola
305b826f92 Make getObject const. Remove a const_cast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178980 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 14:50:40 +00:00
Rafael Espindola
196abbffe9 Remove last use of InMemoryStruct in llvm-objdump.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178979 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-07 14:40:18 +00:00
Rafael Espindola
68d287d19e Remove last use of InMemoryStruct from MachOObjectFile.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178948 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-06 03:50:05 +00:00
Rafael Espindola
82a21077a0 Don't use InMemoryStruct<macho::SymtabLoadCommand>.
This also required not using the RegisterStringTable API, which is also a
good thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178947 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-06 03:31:08 +00:00
Rafael Espindola
05b5bdd024 Don't use InMemoryStruct in getSymbol64TableEntry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178946 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-06 02:15:44 +00:00
Rafael Espindola
00555c13be Don't use InMemoryStruct in getSymbolTableEntry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178945 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-06 01:59:05 +00:00
Rafael Espindola
5cf0f51ae6 Don't use InMemoryStruct in getRelocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178943 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-06 01:24:11 +00:00
Rafael Espindola
0e5dc8aacb Define versions of Section that are explicitly marked as little endian.
These should really be templated like ELF, but this is a start.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178896 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-05 18:45:28 +00:00
Rafael Espindola
c1cd6aa7a4 Don't use InMemoryStruct in getSection and getSection64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178894 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-05 18:18:19 +00:00
Rafael Espindola
f16c2bb320 Don't fetch pointers from a InMemoryStruct.
InMemoryStruct is extremely dangerous as it returns data from an internal
buffer when the endiannes doesn't match. This should fix the tests on big
endian hosts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178875 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-05 15:15:22 +00:00
Rafael Espindola
d787a41b11 Implement the "mips endian" for r_info.
Normally r_info is just a 32 of 64 bit number matching the endian of the rest
of the file. Unfortunately, mips 64 bit little endian is special: The top 32
bits are a little endian number and the following 32 are a big endian one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178694 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 21:02:51 +00:00
Eric Christopher
76e70f340c Implements low-level object file format specific output for COFF and
ELF with support for:

- File headers
- Section headers + data
- Relocations
- Symbols
- Unwind data (only COFF/Win64)

The output format follows a few rules:
- Values are almost always output one per line (as elf-dump/coff-dump already do). - Many values are translated to something readable (like enum names), with the raw value in parentheses.
- Hex numbers are output in uppercase, prefixed with "0x".
- Flags are sorted alphabetically.
- Lists and groups are always delimited.

Example output:
---------- snip ----------
Sections [
  Section {
    Index: 1
    Name: .text (5)
    Type: SHT_PROGBITS (0x1)
    Flags [ (0x6)
      SHF_ALLOC (0x2)
      SHF_EXECINSTR (0x4)
    ]
    Address: 0x0
    Offset: 0x40
    Size: 33
    Link: 0
    Info: 0
    AddressAlignment: 16
    EntrySize: 0
    Relocations [
      0x6 R_386_32 .rodata.str1.1 0x0
      0xB R_386_PC32 puts 0x0
      0x12 R_386_32 .rodata.str1.1 0x0
      0x17 R_386_PC32 puts 0x0
    ]
    SectionData (
      0000: 83EC04C7 04240000 0000E8FC FFFFFFC7  |.....$..........|
      0010: 04240600 0000E8FC FFFFFF31 C083C404  |.$.........1....|
      0020: C3                                   |.|
    )
  }
]
---------- snip ----------

Relocations and symbols can be output standalone or together with the section header as displayed in the example.
This feature set supports all tests in test/MC/COFF and test/MC/ELF (and I suspect all additional tests using elf-dump), making elf-dump and coff-dump deprecated.

Patch by Nico Rieck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178679 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 18:31:38 +00:00
Eric Christopher
19d7322170 Implement sectionContainsSymbol for ELF.
Patch by Nico Rieck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178677 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 18:31:19 +00:00
Eric Christopher
eac49f668a When dumping clear the arm/thumb flag for now.
Patch by Nico Rieck!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178676 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-03 18:31:12 +00:00
Jack Carter
732f4bc7c4 Mips direct object exception handling regression
Revision 177141 caused a regression in all but
mips64 little endian. That is because none of the
other Mips targets had test cases checking the 
contents of the .eh_frame section. This patch fixes
both the llvm code and adds an assembler test case 
to include the current 4 flavors.

The test cases unfortunately rely on llvm-objdump. A
preferable method would be to use a pretty printer output
such as what readelf -wf <elf_file> would give.

I also changed the name of the test case to correct a typo.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178506 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01 21:55:15 +00:00
Benjamin Kramer
a9f83517fc Object: Turn a couple of degenerate for loops into while loops.
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178413 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-30 13:07:51 +00:00
Michael Gottesman
21fb0193b2 Revert "Updated ELF relocation test for .eh_frame section"
This reverts commit c8d6536422.

This broke a bunch of the buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178222 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28 05:14:26 +00:00
Jack Carter
c8d6536422 Updated ELF relocation test for .eh_frame section
Made sure we were looking a correct section
Added Mips32/64 as an extra check
Updated llvm-objdump to generate symbolic info for Mips relocations


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178190 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27 22:58:49 +00:00
Shankar Easwaran
dceaf4ac8d [ELF] dont compute symbolname size in every loop
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177903 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-25 20:26:47 +00:00
Shankar Easwaran
8b2824a1b2 reflect comment to the official reference
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177895 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-25 19:50:40 +00:00
Shankar Easwaran
11987c4719 [ELF] add elf_hash function to compute the hash value of a symbol in the dynamic symbol table
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177872 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-25 16:02:10 +00:00
Michael J. Spencer
d326d05fb9 [llvm-readobj] Add ELF .dynamic table dumping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175592 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-20 02:37:12 +00:00
Dmitry Vyukov
06121de923 include/llvm/Object/ELF.h: do debug checks only when NDEBUG
validateSymbol() is called all over the place, and it seems it's a debug check.
It significantly speedups llvm-symbolizer used in tsan/asan/msan. validateSymbol() is the second hot function and accounts for 15% of runtime.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175192 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-14 18:41:42 +00:00
Tim Northover
b05dc55460 AArch64: Add basic relocation processing for llvm-dwarfdump.
This allows llvm-dwarfdump to handle the relocations needed, at least
for LLVM-produced code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174874 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-11 11:16:02 +00:00
Michael J. Spencer
d1824f2f46 [Object][ELF] Add a way to get the dynamic symbol table section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174682 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07 23:37:58 +00:00
Michael J. Spencer
2e0742f76c [Object][ELF] Add {begin,end}_elf_dynamic_symbols to non-virtually iterate over dynamic symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174681 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07 23:37:46 +00:00
Michael J. Spencer
def0c1f756 [Object][ELF] Fix crash on no dynamic section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174639 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07 18:26:45 +00:00
Michael J. Spencer
727de1e756 80-col
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174572 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07 01:43:18 +00:00
Michael J. Spencer
49db4691cf [Object][ELF] Do the actual devirtualization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174568 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07 01:24:22 +00:00
Michael J. Spencer
945bc5bde0 [Object][ELF] Devirtualize and simplify dynamic table iteration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174566 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07 01:17:23 +00:00
Michael J. Spencer
0f76e648d8 [Object][Archive] Improve performance.
Improve performance of iterating over children and accessing the member file
buffer by caching the file size and moving code out to the header.

This also makes getBuffer return a StringRef instead of a MemoryBuffer. Both
fixing a memory leak and removing a malloc.

This takes getBuffer from ~10% of the time in lld to unmeasurable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174272 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-03 10:48:50 +00:00
Tim Northover
72062f5744 Add AArch64 as an experimental target.
This patch adds support for AArch64 (ARM's 64-bit architecture) to
LLVM in the "experimental" category. Currently, it won't be built
unless requested explicitly.

This initial commit should have support for:
    + Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions
      (except the late addition CRC instructions).
    + CodeGen features required for C++03 and C99.
    + Compilation for the "small" memory model: code+static data <
      4GB.
    + Absolute and position-independent code.
    + GNU-style (i.e. "__thread") TLS.
    + Debugging information.

The principal omission, currently, is performance tuning.

This patch excludes the NEON support also reviewed due to an outbreak of
batshit insanity in our legal department. That will be committed soon bringing
the changes to precisely what has been approved.

Further reviews would be gratefully received.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174054 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31 12:12:40 +00:00
NAKAMURA Takumi
3802947dec Object/RelocVisitor: Add minimal support, R_MIPS_32, for mips.
It fixes llvm-dwarfdump for mips and mipsel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173567 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26 08:27:36 +00:00
NAKAMURA Takumi
994754feea Object/RelocVisitor: Add minimal support, R_PPC64_ADDR32, for ppc64.
It fixes llvm-dwarfdump for ppc64-elf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173566 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-26 08:27:29 +00:00