Rafael Espindola
ff9dfedd10
Call InitSections in llc and clang so that the binaries produced by them
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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
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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.
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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.
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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.
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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
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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.
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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.
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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.
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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
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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.
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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.
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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.
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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.
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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.
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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
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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.
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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.
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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.
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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.
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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
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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
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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.
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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.
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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
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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
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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.
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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.
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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.
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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
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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.
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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
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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:
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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
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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
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(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
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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.
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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.
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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.
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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.
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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.
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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.
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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
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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.
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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.
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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.
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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.
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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.
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- 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
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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