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420 Commits

Author SHA1 Message Date
Peter Collingbourne
df39be6cb4 Add support for subsections to the ELF assembler. Fixes PR8717. 
Differential Revision: http://llvm-reviews.chandlerc.com/D598

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179725 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-17 21:18:16 +00:00
Nico Rieck
f89da7210b Replace coff-/elf-dump with llvm-readobj 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179361 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-12 04:06:46 +00:00
Peter Collingbourne
01a7b5c43e Use a scheme closer to that of GNU as when deciding the type of a 
symbol with multiple .type declarations.

Differential Revision: http://llvm-reviews.chandlerc.com/D607

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179184 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-10 16:52:15 +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
Rafael Espindola
30509ee8a3 Move test since it depends on the X86 backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178249 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-03-28 17:01:28 +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
Rafael Espindola
7a86ffb19f Fix the FDE encoding to be relative on ELF. 
This is a very late complement to r130637 which fixed this on x86_64. Fixes
pr15448.

Since it looks like that every elf architecture uses this encoding when using
cfi, make it the default for elf. Just exclude mips64el. It has a lovely
.ll -> .o test (ef_frame.ll) that tests that nothing changes in the binary
content of the .eh_frame produced by llc. Oblige it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177141 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-03-15 05:51:57 +00:00
Nick Lewycky
462bba39c2 We need a shndx if the number of sections breaks SHN_LORESERVE. This condition 
for choosing to emit a shndx was simply testing the wrong variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176762 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-03-09 09:31:44 +00:00
Eli Bendersky
df861b3ac4 Rewrite a test to check actual output rather than intermediate implementation 
detail.

The was this test was written, it was relying on an implementation detail
(fixups) and hence was very brittle (relying, among other things, on the
exact ordering of statistics printed by MC).

The test was rewritten to check a more observable output difference. While it
doesn't cover 100% of the things the original test covered, it's a good
practice to write regression tests this way. If we want to check that
internal details and invariants hold, such tests should be expressed as unit
tests.





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176377 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-03-01 20:54:00 +00:00
Eli Bendersky
767295f114 Now that llvm-dwarfdump supports flags to specify which DWARF section to dump, 
use them in tests that run llvm-dwarfdump. This is in order to make tests as
specific as possible.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173498 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-01-25 21:44:53 +00:00
NAKAMURA Takumi
f8cd4df304 llvm/test/MC/ELF/comp-dir.s: Appease MSYS Bash. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170410 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-18 05:08:12 +00:00
Chandler Carruth
1b6e9b867b Add a triple to this test -- it has to be an ELF platform... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170374 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-17 21:44:50 +00:00
Chandler Carruth
6c31d31357 Prepare LLVM to fix PR14625, exposing a hook in MCContext to manage the 
compilation directory.

This defaults to the current working directory, just as it always has,
but now an assembler can choose to override it with a custom directory.
I've taught llvm-mc about this option and added a test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170371 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-17 21:32:42 +00:00
Eli Bendersky
e1dee8a06e Add a test for explicitly exercising the mc-relax-all flag. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169764 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-10 20:36:01 +00:00
Eli Bendersky
8ddc5a1929 Add separate statistics for Data and Inst fragments emitted during relaxation. 
Also fixes a test that was overly-sensitive to the exact order of statistics
emitted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169619 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-12-07 17:59:21 +00:00
Rafael Espindola
f4f14f68f6 Add support for .cfi_register now that it is easy to extent the representation 
to support it. Original patch with the parsing and plumbing by the PaX team and
Roman Divacky. I added the bits in MCDwarf.cpp and the test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168565 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-25 15:14:49 +00:00
Rafael Espindola
c8fec7e21f Implement .cfi_undefined. Based on a patch from PaX team, updated by 
Roman Divacky. I just added the testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168520 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-23 16:59:41 +00:00
Alexey Samsonov
15ab115df5 Emit relocations from .debug_aranges to .debug_info for asm files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167926 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-11-14 09:55:38 +00:00
Benjamin Kramer
39646d96e7 MC: Overhaul handling of .lcomm 
- Darwin lied about not supporting .lcomm and turned it into zerofill in the
  asm parser. Push the zerofill-conversion down into macho-specific code.
- This makes the tri-state LCOMMType enum superfluous, there are no targets
  without .lcomm.
- Do proper error reporting when trying to use .lcomm with alignment on a target
  that doesn't support it.
- .comm and .lcomm alignment was parsed in bytes on COFF, should be power of 2.
- Fixes PR13755 (.lcomm crashes on ELF).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163395 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-07 17:25:13 +00:00
Benjamin Kramer
8e70b5506e PR13754: llvm-mc/x86 crashes on .cfi directives without the % prefix for registers. 
gas accepts this and it seems to be common enough to be worth supporting. This
doesn't affect the parsing of reg operands outside of .cfi directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163390 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-09-07 14:51:35 +00:00
Nick Lewycky
af402acff3 Give this test an explicit triple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161740 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-12 08:21:27 +00:00
Nick Lewycky
0c5602de8c When emitting the PC range in an FDE, use the same data encoding for both ends 
of the range. Fixes PR13581!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161739 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-08-12 08:09:45 +00:00
Benjamin Kramer
6a80f9da8c ELF: Add support for the asm .version directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156712 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-05-12 14:30:47 +00:00
Eli Bendersky
cc85160672 Continue cleanup of LIT, getting rid of the remaining artifacts from dejagnu 
* Removed test/lib/llvm.exp - it is no longer needed 
* Deleted the dg.exp reading code from test/lit.cfg. There are no dg.exp files
  left in the test suite so this code is no longer required. test/lit.cfg is
  now much shorter and clearer 
* Removed a lot of duplicate code in lit.local.cfg files that need access to
  the root configuration, by adding a "root" attribute to the TestingConfig
  object. This attribute is dynamically computed to provide the same
  information as was previously provided by the custom getRoot functions. 
* Documented the config.root attribute in docs/CommandGuide/lit.pod





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153408 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-25 09:02:19 +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
Rafael Espindola
489d679271 On ELF, create relocations to the abbreviation and line sections when producing 
debug info for assembly files. We were already doing the right thing when
producing debug info for C/C++.

ELF linkers don't know dwarf, so they depend on these relocations to produce
valid dwarf output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151655 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-28 21:13:05 +00:00
Eli Bendersky
0f0c411079 Replace all instances of dg.exp file with lit.local.cfg, since all tests are run with LIT now and now Dejagnu. dg.exp is no longer needed. 
Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-16 06:28:33 +00:00
David Meyer
5f7692604d For ELF, also call fixSymbolsInTLSFixups() on expressions passed to EmitValue (literal values). Previously only called on expressions in instructions. New test cases added to tls.s, tls-i386.s. Resolves PR11981. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150582 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-02-15 15:09:06 +00:00
Rafael Espindola
16d7d437e0 Add support for .cfi_signal_frame. Fixes pr11762. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148733 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-23 21:51:52 +00:00
Rafael Espindola
ed23bdb65f Implement cfi_restore. Patch by Brian Anderson! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147356 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 21:43:03 +00:00
Rafael Espindola
6f0b181bc7 Implement .cfi_escape. Patch by Brian Anderson! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147352 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 20:24:47 +00:00
Roman Divacky
a0c17a495b Add support for gnu_indirect_function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146377 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-12 17:34:04 +00:00
Rafael Espindola
f3aefb56de Handle expressions of the form _GLOBAL_OFFSET_TABLE_-symbol the same way gas 
does. The _GLOBAL_OFFSET_TABLE_ is still magical in that we get a R_386_GOTPC,
but it doesn't change the immediate in the same way as when the expression
has no right hand side symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146311 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-10 02:28:43 +00:00
Rafael Espindola
3c68acd202 Handle reloc_signed_4byte in here. Not doing so was a regression from my 
previous commit. It is strange that we see it in 32 bits. We already
have a fixme about it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146273 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-09 19:57:29 +00:00
Rafael Espindola
1d5969d839 Handle the case of the magical _GLOBAL_OFFSET_TABLE_ showing up in a 
symbol difference. This matches gas behavior and fixes PR11513.

We still don't handle _GLOBAL_OFFSET_TABLE_ in data sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146238 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-09 03:03:58 +00:00
Nick Lewycky
b1b8f5f7cd Apparently, sometimes llvm-nm doesn't put the undefined symbol at the top. Take 
that into account and test for no U's showing up in the middle, which is what
we really wanted to test for.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141653 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-11 06:58:11 +00:00
Nick Lewycky
7aabcb1fc0 Also create a shndx even if there are no symbols. This lets us test 
.symtab_shndx reading and writing together, and finally we have a testcase for
r141440.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141641 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-11 03:54:50 +00:00
Rafael Espindola
5c4e52e496 Fix the bitwidth of the remaining fields. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136884 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 17:00:11 +00:00
Rafael Espindola
251a2bbfb0 print st_shndx with the correct number of bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136880 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 15:50:13 +00:00
Rafael Espindola
67ac0c0d63 print st_other with the correct number of bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136877 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 15:38:19 +00:00
Rafael Espindola
71a8f5ca12 print st_type with the correct number of bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136875 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 15:24:00 +00:00
Rafael Espindola
d7c278326f Print st_bind with the correct number of bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136874 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 15:10:35 +00:00
Rafael Espindola
a83f8ef9b4 Print r_sym with the correct number of bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136873 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 14:48:27 +00:00
Rafael Espindola
f81f6758f3 Print r_type with the correct number of bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136872 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 14:39:30 +00:00
Rafael Espindola
65ad8dc807 Another counter goes decimal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136871 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 14:27:46 +00:00
Rafael Espindola
f7179de2a5 Change anther counter to decimal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136870 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 14:01:03 +00:00
Rafael Espindola
014180d387 Don't print a counter in hex. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136869 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 13:39:15 +00:00
Rafael Espindola
d7c9b63b58 Print all the bits in the addend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136867 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 13:00:24 +00:00
Jason W Kim
e651983e71 Fix http://llvm.org/bugs/show_bug.cgi?id=10568 
Move the reloc size assert into AsmBackend - where it is more apropos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136855 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 00:38:45 +00:00
Eli Friedman
a4d0bd84f7 Extend the hack for _GLOBAL_OFFSET_TABLE_ slightly; PR10389. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135607 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-20 19:36:11 +00:00
Eli Friedman
5232cc675c PR10370: Make sure we know how to relax push correctly on x86-64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135303 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-15 21:28:39 +00:00
Kevin Enderby
d7c7e2ff7d Update MC/ELF/relocation.s with change to X86 PUSH64i8 in r134501. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134511 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-06 17:55:20 +00:00
Nick Lewycky
e0b87032f5 Add support for @GOTPTOFF in i386 mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132643 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-04 17:38:07 +00:00
Rafael Espindola
04507f062f Use %rbp on a 64 bit test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132279 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-29 04:04:50 +00:00
Benjamin Kramer
06a8d54967 Move ARM specific test into the ARM subdir. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132255 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-28 11:01:30 +00:00
Rafael Espindola
a3bff99f0a ADD64ri32 sign extends its argument, so we need to use a R_X86_64_32S. 
Fixes PR9934.

We really need to start tblgening the relocation info :-(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131669 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 20:32:34 +00:00
Rafael Espindola
6469540adf sets bit 0 of the function address of thumb function in .symtab 
("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture" 4.7.1.2)

Patch by Koan-Sin Tan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131406 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-16 16:17:21 +00:00
Rafael Espindola
0d450dc659 In a debug_frame the cfi offset is to the start of the debug_frame section! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131129 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 15:20:23 +00:00
Rafael Espindola
40a7dbbeff Add support for producing .deubg_frame sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131121 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-10 03:54:12 +00:00
Rafael Espindola
25f492e778 Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129362 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-12 16:12:03 +00:00
Rafael Espindola
c57543964d Implement .cfi_same_value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129361 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-12 15:31:05 +00:00
Rafael Espindola
a61842bf6e Implement cfi_rel_offset 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129306 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-11 21:49:50 +00:00
Rafael Espindola
787d41aaa0 Add test for previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129304 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-11 21:41:34 +00:00
Rafael Espindola
9974b8b3cb Update tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129116 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-07 23:51:25 +00:00
Rafael Espindola
7c18fa87a4 Write the section table and the section data in the same order that 
gun as does. This makes it a lot easier to compare the output of both
as the addresses are now a lot closer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127972 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-20 18:44:20 +00:00
Joerg Sonnenberger
d02c8b6cc1 Fix handling of @IDNTPOFF relocations, they need to get STT_TLS. 
While here, add VK_ARM_TPOFF and VK_ARM_GOTTPOFF, too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127780 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-17 00:35:10 +00:00
Joerg Sonnenberger
89e0f386f3 Be nice to Xcore and the XMOS assembler and avoid quoting section names 
that contain only letters, digits and the characters "_" and ".".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127028 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-04 20:03:14 +00:00
Joerg Sonnenberger
ea83b13350 Bug#9033: For the ELF assembler output, always quote the section name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126963 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-03 22:31:08 +00:00
Eli Friedman
78c1e1781c PR9352: Always emit a relocation for weak symbols. Not emitting relocations 
for calls to weak symbols with a definition has the appearance of working
with LLVM-generated code because weak symbol definitions are put in their
own sections.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126933 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-03 07:24:36 +00:00
Chris Lattner
98ea4ce516 split this test into arch specific pieces, so the ARM 
test isn't run when the arm backend isn't built.  This
fixes PR9327


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126500 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-25 19:06:35 +00:00
Joerg Sonnenberger
93c65e6e66 Restore r125595 (reverted in r126336) with modifications: 
Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126443 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-24 21:59:22 +00:00
Rafael Espindola
21451e533f Put in the symbol table symbols only used in a .globl statement. 
Fixes PR9292.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126330 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-23 20:22:07 +00:00
Joerg Sonnenberger
d45e8bf93b Handle FK_PCRel_1 and add a test case for this and FK_PCRel_4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126157 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-21 23:25:41 +00:00
Rafael Espindola
f7ad048f1e Add some limited support for labels in org directives. Hopefully enough to fix 
PR9245.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126091 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-20 20:20:07 +00:00
Rafael Espindola
908159b46a Gas is very inconsistent about when a relaxation/relocation is needed. Do 
the right thing and stop trying to copy it. Fixes PR8944.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125648 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-16 03:25:55 +00:00
Roman Divacky
54b0f4f2a4 Add support for specifying register name in cfi-register/offset/def 
as well as register number.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124379 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-27 17:16:37 +00:00
Rafael Espindola
59b8cf4512 Jörg Sonnenberger noticed that we were missing this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124139 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-24 19:40:38 +00:00
Rafael Espindola
184640e96e Handle strings in section names the same way as gas: 
* If the name is a single string, we remove the quotes
* If the name starts without a quote, we include any quotes in the name

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124127 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-24 18:02:54 +00:00
Rafael Espindola
96aa78c8c5 Add support for the --noexecstack option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124077 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-23 17:55:27 +00:00
Rafael Espindola
54104db434 Add support for lowercase variants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124071 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-23 16:11:25 +00:00
Rafael Espindola
0cf5e3d51d Delay the creation of eh_frame so that the user can change the defaults. 
Add support for SHT_X86_64_UNWIND.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124059 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-23 05:43:40 +00:00
Rafael Espindola
1c10db3da9 Update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123591 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-16 18:02:57 +00:00
Evan Cheng
bbdcd44361 Convert MC tests to .s so codegen changes won't break them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122786 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-03 23:47:14 +00:00
Rafael Espindola
7a54997d67 Fix PR8878. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122658 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-01 19:05:35 +00:00
Rafael Espindola
caf1158b0f Correctly encode pcrel|indirect. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122624 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-29 04:31:26 +00:00
Rafael Espindola
a7e450574c Fix bug when trying to output uint16_t or uint32_t. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-29 02:30:49 +00:00
Rafael Espindola
b40a71fda1 Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks 
like 6 is a fixed point of that and so the previous tests were OK :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-29 01:42:56 +00:00
Rafael Espindola
b4601bd2ff Implement cfi_def_cfa_register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122612 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-29 00:26:06 +00:00
Rafael Espindola
b790a17efb Initial .cfi_offset implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122611 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-29 00:09:59 +00:00
Rafael Espindola
3b78cdc57a Don't produce a "DW_CFA_advance_loc 0". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122609 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-28 23:38:03 +00:00
Rafael Espindola
fe024d0a62 Implement .cfi_remember_state and .cfi_restore_state. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122602 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-28 18:36:23 +00:00
Rafael Espindola
245a1e2041 Relax address updates in the eh_frame section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122591 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-28 05:39:27 +00:00
Rafael Espindola
5bba084253 Start adding basic support for emitting the call frame instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122590 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-28 04:15:37 +00:00
Rafael Espindola
bdc3167c08 Add support for .cfi_lsda. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-27 15:56:22 +00:00
Rafael Espindola
c3a561cb8e Handle reloc_riprel_4byte_movq_load. Should make the bots happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122579 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-27 02:03:24 +00:00
Rafael Espindola
3a83c40ab6 Add support for the same encodings of the personality function that gnu as 
supports.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-27 00:36:05 +00:00
Rafael Espindola
98976610d2 Add support for @note. Patch by Jörg Sonnenberger. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122568 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 21:30:59 +00:00
Rafael Espindola
d7c8ccae8e Add basic support for .cfi_personality. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122566 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 20:20:31 +00:00
Rafael Espindola
f01212489b Simplify the handling of .size expressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122404 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 16:03:00 +00:00
Roman Divacky
d149186e15 Set the value of absolute symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122268 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 21:14:39 +00:00
Roman Divacky
1ae3c165f7 Print all 64bits for st_value and st_size. Adjust tests accordingly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122263 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 20:49:43 +00:00
Rafael Espindola
54f08852f6 Add a test that shows that we produce no fixups when computing the difference 
of two symbols in the same fragment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122145 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 05:07:45 +00:00
Rafael Espindola
a5ff979c11 Test for push being relaxed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122124 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:16:59 +00:00
Rafael Espindola
dfe125cc9c "Fix" FDE alignment to match what gas does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 00:28:02 +00:00
Rafael Espindola
3ee33aa6f9 Make pushq produce signed relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122005 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 22:50:01 +00:00
Rafael Espindola
89b9372605 Fixed version of 121434 with no new memory leaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 07:39:47 +00:00
Rafael Espindola
f7fd4aa261 Revert my previous patch to make the valgrind bots happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 04:01:09 +00:00
Rafael Espindola
1c952b9cc9 Initial support for the cfi directives. This is just enough to get 
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121434 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 23:48:29 +00:00
Rafael Espindola
767b1be390 Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoid 
doing that if the target is darwin10 or newer.

This fixes
*) Direct object emission was producing objects without the workaround on
   darwin9.
*) Assembly printing was producing objects with the workaround on linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-04 00:31:13 +00:00
Benjamin Kramer
8ad87ab166 Fix some broken CHECK lines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120332 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:34:55 +00:00
Rafael Espindola
6b8e4357ec Factor some code to parseSectionFlags and fix the default type of a section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120145 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-25 15:32:56 +00:00
Rafael Espindola
25958730df Behave a bit more like gnu as and use the symbol (instead of the section) 
for any relocation to a symbol defined in a tls section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-24 21:57:39 +00:00
Rafael Espindola
1683fcc823 Relocate with the symbol if the relocation is of kind NTPOFF. 
Patch by David Meyer, I added the test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120104 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-24 19:23:50 +00:00
Rafael Espindola
bf8209daf8 Fix and add tests for all cases in x86 and x86_64 where gnu as implicitly 
sets the type of a symbol to STT_TLS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-24 18:51:21 +00:00
Rafael Espindola
97551276c5 If a symbol is used as tls, mark it as tls even if not declare as so. Probably 
fixes PR8659.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120076 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-24 02:19:40 +00:00
Rafael Espindola
d93ceeb125 Produce a relocation for pcrel absolute values. Based on a patch by David Meyer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 07:20:12 +00:00
Rafael Espindola
12203cc7c3 Handle PCRel relocations with absolute values. Fixes PR8656. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119917 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 00:48:25 +00:00
Rafael Espindola
435279b1a6 Add support for .int. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119512 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 16:24:40 +00:00
Rafael Espindola
110f22aae8 Add support for .2byte, .4byte and .8byte. 
Fixes PR8631.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119511 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 16:15:42 +00:00
Rafael Espindola
2c92085034 A bit more of gnu as compatibility when handling relocations with aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119328 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-16 04:11:46 +00:00
Rafael Espindola
94ed5fca3f Change MCExpr::EvaluateAsRelocatableImpl of variables to return the original 
variable if recursing fails to simplify it.

Factor AliasedSymbol to be a method of MCSymbol.

Update MCAssembler::EvaluateFixup to match the change in
EvaluateAsRelocatableImpl.

Remove the WeakRefExpr hack, as the object writer now sees the weakref with
no extra effort needed.

Nothing else is using MCTargetExpr, but keep it for now.

Now that the ELF writer sees relocations with aliases, handle

    .weak    foo2
foo2:
    .weak    bar2
    .set    bar2,foo2
    .quad    bar2

the same way gas does and produce a relocation with bar2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-15 16:33:49 +00:00
Rafael Espindola
db9835d089 Fix PR8565. 
This moves most of the isUsed logic to the MCSymbol itself. With this we
get a bit more relaxed about allowing definitions after uses: uses that
don't evaluate their argument immediately (jmp foo) are accepted.

ddunbar, this was the smallest compromise I could think of that lets us
accept gcc (and clang!) assembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-15 14:40:36 +00:00
Rafael Espindola
1f52dfe69e Move the logic to decide with which symbol we produce a relocation (if any) to 
a central location. This also makes us a bit more compatible with gas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119094 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 23:53:26 +00:00
Rafael Espindola
55d02f3a13 Fix another case of a .comm directive without a corresponding .type 
directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119073 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 21:11:16 +00:00
Rafael Espindola
765fb1a446 Fix the type of a symbol created with .comm and no corresponding .type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119060 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 19:40:55 +00:00
Rafael Espindola
1f4f9e3d35 Handle a peculiar comdat case: Creating a section with an undefined 
signature symbol causes a local symbol to be created unless there is
some other use of the symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119026 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 04:17:37 +00:00
Rafael Espindola
e13a0ff8ac Parse and record the gnu_unique_object type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118980 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 04:51:02 +00:00
Rafael Espindola
64185cc609 Fix the encoding of negative line deltas. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118962 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 01:06:27 +00:00
Rafael Espindola
d4a352609f gnu as support both % and @ before types, do the same. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118893 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 15:47:08 +00:00
Rafael Espindola
e1a2587ee2 Mark labels declared in tls sections as STT_TLS. This matches the behavior of 
gas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118818 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 19:04:55 +00:00
Rafael Espindola
2ff9e83a82 Initial comdat implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118805 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 18:13:52 +00:00
Rafael Espindola
9302bd664d Make AliasedSymbol able to handle MCTargetExpr. They can get here if 
a weakref is used with a VariantKind.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118798 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 17:24:43 +00:00
Rafael Espindola
03f1b74aed Fix the symbol index of weak references. Also make RecordRelocation a bit 
easier to read by having const references to the symbol, aliased symbol and
renamed symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118793 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:48:11 +00:00
Rafael Espindola
4faf7c78fe Set default flags for .rodata. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 02:47:59 +00:00
Rafael Espindola
187d8339db Relax dwarf line fragments. This fixes a crash in the included testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118365 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-07 02:07:12 +00:00
Rafael Espindola
3ff57094a7 Add support for expressions in .sleb/.uleb directives. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118023 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-02 17:22:24 +00:00
Rafael Espindola
d1d73b03af Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117932 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-01 17:10:53 +00:00
Rafael Espindola
c70a1d985a Write the line info to .debug_line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117930 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-01 17:07:14 +00:00
Rafael Espindola
484291c273 Implement .weakref. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117911 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-01 14:28:48 +00:00
Rafael Espindola
d179886f05 Be more strict on when we produce an undefined reference. In gas a file with 
just

.type   foo,@object

will produce an undefined reference to foo. On the other hand, a file with
just

.weakref bar, foo

will not. It is somewhat hard to support both in MC since both statements
should create the symbols. It should be possible if we really need to by
adding to the flags, but hopefully that is not necessary.

With this patch we do not produce a undefined reference in any of those cases.
The assembly file needs an actual use for the undefined reference to be
present.

This is in preparation for a patch implementing .weakref.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117735 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-29 23:09:31 +00:00
Rafael Espindola
f4b0f3e616 Improvements to .section parsing: 
* If we have a M or a G, reject sections without the type
* Only parse the flag specific arguments if we have M or G
* Parse the corresponding arguments for M and G

We ignore the G arguments and flag for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 21:33:33 +00:00
Rafael Espindola
1973d43792 Defined weak symbols should have non-zero value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:39:57 +00:00
Rafael Espindola
29129728f1 Fix relocations with renamed symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117575 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:08:03 +00:00
Rafael Espindola
f571f9a8fe Aliases defined with .symver should copy the binding of the symbols they alias. 
Move the existing patching for undefined symbols so that all the patching
is done in the same function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 18:33:03 +00:00
Rafael Espindola
aa8f1f0135 Implement R_X86_64_DTPOFF32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117548 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 15:11:03 +00:00
Rafael Espindola
b4d1721eff Implement TLSLD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117547 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 15:02:40 +00:00
Rafael Espindola
0cf15d61b7 Implement DTPOFF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117546 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:48:59 +00:00
Rafael Espindola
a264f72d3f Implement TLSLDM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117544 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:37:09 +00:00
Rafael Espindola
a0a2f8734c Implement VK_GOTNTPOFF and switch RelocNeedsGOT to use VariantKind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117543 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 14:22:44 +00:00
Rafael Espindola
3cede2d0b2 Add support for R_386_TLS_GD, R_386_TLS_LE_32, R_386_TLS_IE and R_386_TLS_LE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117494 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 21:23:52 +00:00
Rafael Espindola
bc82d8b84f Implement R_X86_64_GOTTPOFF, R_X86_64_TLSGD and R_X86_64_TPOFF32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 20:28:07 +00:00
Rafael Espindola
4fa3478fc2 Set default type and flags for .init and .fini. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 18:45:20 +00:00
Rafael Espindola
83ff4d2b0d Produce an error for an invalid use of .symver. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117462 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 17:56:18 +00:00
Rafael Espindola
bf052ac5d1 Symbols defined as the difference of other two end up in the ABS section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117451 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 16:04:30 +00:00
Rafael Espindola
8818213247 Add support for the .symver directive. This is really ugly, but most of it is 
contained in the ELF object writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 15:18:17 +00:00
Rafael Espindola
61e3b91da7 Add support for .ident. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117389 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-26 19:35:47 +00:00
Rafael Espindola
e4f506ff4b Implement some relaxations for arithmetic instructions. The limitation 
on RIP relative relocations looks artificial, but this is a superset of
what we were able to do before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117364 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-26 14:09:12 +00:00
Rafael Espindola
8c8bc05a38 Do not recurse into symbol refs that have a variant kind. This prevents us 
from losing the variant when producing a relocation on an alias.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-21 18:00:20 +00:00
Rafael Espindola
64e6719ee8 Handle _GLOBAL_OFFSET_TABLE_ correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116932 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-20 16:46:08 +00:00
Jason W Kim
f7d5278fb3 Fixing r116753 r116756 r116777 
The failures in r116753 r116756 were caused by a python issue -
Python likes to append 'L' suffix to stringified numbers if the number
is larger than a machine int. Unfortunately, this causes a divergence of
behavior between 32 and 64 bit python versions.

I re-crafted elf-dump/common_dump to take care of these issues by:

1. always printing 0x (makes for easy sed/regex)
2. always print fixed length (exactly 2 + numBits/4 digits long)
   by mod ((2^numBits) - 1)
3. left-padded with '0'

There is a residual common routine that is also used by
macho-dump (dataToHex) , so I left the 'section_data' test values alone.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116823 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 17:39:10 +00:00
Eric Christopher
1dcb1eafbc Speculatively revert 116753 and 116756 to attempt to fix the bots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116777 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 00:19:49 +00:00
Jason W Kim
e7d4a4c6c8 Changed elf-dump to output hex format by default. 
Also updated tests. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116753 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 21:32:41 +00:00
Rafael Espindola
eada304793 Implement R_386_GOT32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116744 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 20:47:21 +00:00
Rafael Espindola
ce2d3c5775 Relocate with .bss instead of using the symbol. Matches gas behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116741 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 20:25:33 +00:00
Rafael Espindola
aa85c21633 Produce ELF::R_386_GOTPC relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 18:36:12 +00:00
Rafael Espindola
9edab3a9e1 Produce a R_386_PLT32 when needed. Moved the default cases of switches to the 
start for consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116715 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 16:58:03 +00:00
Rafael Espindola
c97f80efc8 Handle GOTOFF correctly on i386. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 16:38:04 +00:00
Rafael Espindola
f230df9af4 Add a MCObjectFormat class so that code common to all targets that use a 
single object format can be shared.

This also adds support for

mov zed+(bar-foo), %eax

on ELF and COFF targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116675 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-16 18:23:53 +00:00
Rafael Espindola
5df0b65e8f Refactor code a bit and avoid creating unnecessary entries in the string 
map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116579 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-15 15:39:06 +00:00
Rafael Espindola
a0949b50dc Remove some code duplication. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116484 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-14 16:34:44 +00:00
Rafael Espindola
ff9dfedd10 Call InitSections in llc and clang so that the binaries produced by them 
are easier to diff with those produced by llvm-mc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 19:37:38 +00:00
Rafael Espindola
152c1061e0 Get binding and visibility info from the the alias, but Type from the symbol 
being aliased.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115836 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 21:02:29 +00:00
Rafael Espindola
153666c038 If a symbol is global, reloc against it even if it is in a mergeable section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115817 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 19:27:21 +00:00
Rafael Espindola
3223f19ff0 Make sure weak symbols are listed after the local ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115795 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 16:47:31 +00:00
Rafael Espindola
8cecf253e4 Correctly handle GOTPCREL relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115793 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 16:23:36 +00:00
Rafael Espindola
3729d0052b Use a relocation against the symbol if it is a PLT and the symbol is in another 
section. Common because of linkonce sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 23:57:26 +00:00
Rafael Espindola
01f9ea35a7 Implement more alias cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 22:26:43 +00:00
Rafael Espindola
62fed8bd38 Don't crash in a strange .size directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115684 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 21:02:45 +00:00
Rafael Espindola
e452b17130 Add support for a fill value in the .zero directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115655 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 19:42:57 +00:00
Rafael Espindola
737cd213e3 Implement a simple alias case and refactor the code a bit so that the 
isInSymtab and isLocal logic in the two loops don't get easily out of sync.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115643 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 18:01:23 +00:00
Rafael Espindola
5c77c16f31 Produce a undefined reference to _GLOBAL_OFFSET_TABLE_ when needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115623 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 15:48:37 +00:00
Rafael Espindola
266a69f375 Tests that now pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115622 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-05 15:43:32 +00:00
Rafael Espindola
607d1f6d32 Implement ELF::R_X86_64_GOTPCREL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115547 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 19:51:39 +00:00
Rafael Espindola
92bf6684f6 Produce a R_X86_64_PLT32 when needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115541 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 19:04:13 +00:00
Rafael Espindola
28f9ac8101 Produce a R_X86_64_GOT32 when needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115537 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 18:44:25 +00:00
Jan Wen Voung
083cf1574f Add hook in MCSection to decide when to use "optimized nops", for each 
section kind. Previously, optimized nops were only used for MachO.
Also added tests for ELF and COFF.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115523 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 17:32:41 +00:00
Rafael Espindola
55fb102130 Include the section address in the computation of the relocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 15:59:01 +00:00
Rafael Espindola
01263d35d4 Correctly compute the relocation when it is not in the first fragment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115506 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-04 15:28:43 +00:00
Rafael Espindola
9d8b7555cd Implement a very basic PIC case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-03 00:46:57 +00:00
Chris Lattner
b539b76038 actually, move the elf tests into the existing elf dir. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115416 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-02 18:53:48 +00:00
Rafael Espindola
7eae36b38b Factor some logic into ShouldRelocOnSymbol. This simplifies the code and 
fixes some cases where we were producing relocations with at symbol that
should use a section instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115194 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 20:18:35 +00:00
Jan Wen Voung
186e7a0fb1 Move logic of determining ELF entsize from the .s printer to initialization 
time. That way, the EntrySize field is initialized for other code paths, 
namely, the .ll -> .o code path.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 05:59:22 +00:00
Rafael Espindola
1b6285cd72 Add another test that now passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115137 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 04:22:07 +00:00
Rafael Espindola
a8c02c3bdd Correctly produce R_X86_64_32 or R_X86_64_32S. 
With this patch in

movq    $foo, foo(%rip)
foo:
.long   foo

We produce a R_X86_64_32S for the first relocation and R_X86_64_32 for the
second one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 03:11:42 +00:00
Jan Wen Voung
12ad94e03c Have ELFAsmParser.cpp use the already parsed "Size" (entry size) when 
constructing a section. Test for a few cases also included.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115132 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 02:41:46 +00:00
Rafael Espindola
7070387f08 Make it possible for the MCObjectWriter to decide if a given fixup is fully 
resolved or not. Different object files have different restrictions and
different native assemblers have different idiosyncrasies we want to emulate
for now.

Move the existing MachO logic to the new place and implement an ELF one that
gets fixups to globals right.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115131 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 02:22:20 +00:00
Rafael Espindola
9e3922e949 Move "local commons" to the end of .bss to match the gnu as behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 14:52:01 +00:00
Rafael Espindola
9804db1353 Add a test that I forgot to add with a previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115036 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 14:40:49 +00:00
Rafael Espindola
53725bc57a On elf, undefined symbols can start with .L. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114958 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 16:19:11 +00:00
Rafael Espindola
c3c413f631 Write relocations in the end of the file. This matches what gas does and 
makes files easier to diff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114898 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 22:04:54 +00:00
Rafael Espindola
0453dd9ca0 Make sure .text doesn't produce extra alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114895 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 21:40:27 +00:00
Rafael Espindola
73ffea47d2 Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put 
symbols defined in merge sections in independent atoms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114786 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 05:42:19 +00:00
Rafael Espindola
a648918eb7 Reapply 114678 and 114667. Reverting them did not fix the bot: 
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost/builds/69

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114761 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 21:19:03 +00:00
Rafael Espindola
cd4b20a25b Revert 114678 and 114667 to see if 
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost

gets happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 18:48:08 +00:00
Rafael Espindola
e15eb4e14c Correctly handle weak undefined symbols. Before we would get a invalid binding 
(2 == STB_WEAK | STB_GLOBAL).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114690 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 19:55:14 +00:00
Rafael Espindola
b142bef30b Represent relocations against local symbols as relocations against the section 
they are in. Both ways should be equivalent, but gas produces relocations
against the section.

Roman wrote the patch, I added the test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 17:25:18 +00:00
Rafael Espindola
59ff3c9134 Avoid some Mach-O specific alignment being done on ELF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 22:27:05 +00:00
Rafael Espindola
1963572f9d Correctly align bss. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114556 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 17:43:04 +00:00
Rafael Espindola
f7c10a3cff Implement support for .local and its "interesting" interactions with .comm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114382 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-21 00:24:38 +00:00
Rafael Espindola
43779dcfef Produce a R_X86_64_32 when the value is >=0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114339 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-20 19:20:47 +00:00
Rafael Espindola
ad49cf5866 Make sure the STT_FILE symbol is the first one in the symbol table. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-18 15:03:21 +00:00
Rafael Espindola
d3dce16ffe Add test that was missing in my previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114248 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-18 00:37:27 +00:00
Rafael Espindola
71859c640f Print the address of sections as 0 and create the metadata sections in the 
same order as gnu as.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114109 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-16 19:46:31 +00:00
Rafael Espindola
34e3d0cfe5 Make sure that names like .note.GNU-stack are accepted as valid section names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-16 17:05:55 +00:00
Rafael Espindola
2ea2ac798b Add support for the .zero directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114077 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-16 15:03:59 +00:00
Rafael Espindola
d80781b98b Add a InitSections method to the streamer interface. 
The ELF implementation now creates text, data and bss to match the gnu as
behavior.

The text streamer still has the old MachO specific behavior since
the testsuite checks that it will error when a directive is given
before a setting the current section for example.

A nice benefit is that -n is not required anymore when producing
ELF files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114027 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-15 21:48:40 +00:00
Rafael Espindola
b98ac2a71e Add support for leb128 of absolute expressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-11 16:45:15 +00:00
Benjamin Kramer
a754be42da Add an elf-dumper utility. 
- Output format and some of the code stolen from macho-dump.
- Somewhat incomplete and probably buggy.
- Comes with a very basic test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113488 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-09 15:00:41 +00:00
Daniel Dunbar
c983b20661 MC/ELF: Allow null values in virtual sections, ELF doesn't use special 
directives for putting contents in .bss, for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111376 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 18:22:37 +00:00