87f77b5f9a
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.
llvm-svn: 115523
2010-10-04 17:32:41 +00:00
da0e3d07b2
Include the section address in the computation of the relocation.
...
llvm-svn: 115509
2010-10-04 15:59:01 +00:00
7c48b06930
Correctly compute the relocation when it is not in the first fragment.
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llvm-svn: 115506
2010-10-04 15:28:43 +00:00
f70b4e0c2e
Implement a very basic PIC case.
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llvm-svn: 115454
2010-10-03 00:46:57 +00:00
a2f2c27b20
actually, move the elf tests into the existing elf dir.
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llvm-svn: 115416
2010-10-02 18:53:48 +00:00
f987d5ea1c
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.
llvm-svn: 115194
2010-09-30 20:18:35 +00:00
efbdbe5565
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.
llvm-svn: 115141
2010-09-30 05:59:22 +00:00
9d98ac645e
Add another test that now passes.
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llvm-svn: 115137
2010-09-30 04:22:07 +00:00
70d6e0e0ff
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.
llvm-svn: 115134
2010-09-30 03:11:42 +00:00
b96b2d8e4d
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.
llvm-svn: 115132
2010-09-30 02:41:46 +00:00
2ebaee9c75
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.
llvm-svn: 115131
2010-09-30 02:22:20 +00:00
53f0bf194a
Move "local commons" to the end of .bss to match the gnu as behavior.
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llvm-svn: 115037
2010-09-29 14:52:01 +00:00
68e05d404a
Add a test that I forgot to add with a previous commit.
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llvm-svn: 115036
2010-09-29 14:40:49 +00:00
01d20a76fe
On elf, undefined symbols can start with .L.
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llvm-svn: 114958
2010-09-28 16:19:11 +00:00
96bfb50c03
Write relocations in the end of the file. This matches what gas does and
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makes files easier to diff.
llvm-svn: 114898
2010-09-27 22:04:54 +00:00
9ca41113f6
Make sure .text doesn't produce extra alignment.
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llvm-svn: 114895
2010-09-27 21:40:27 +00:00
75d65b9a03
Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put
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symbols defined in merge sections in independent atoms.
llvm-svn: 114786
2010-09-25 05:42:19 +00:00
cf1f985838
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
llvm-svn: 114761
2010-09-24 21:19:03 +00:00
3843bb9d2c
Revert 114678 and 114667 to see if
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http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost
gets happy.
llvm-svn: 114742
2010-09-24 18:48:08 +00:00
f458f04eb1
Correctly handle weak undefined symbols. Before we would get a invalid binding
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(2 == STB_WEAK | STB_GLOBAL).
llvm-svn: 114690
2010-09-23 19:55:14 +00:00
48e108753b
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.
llvm-svn: 114667
2010-09-23 17:25:18 +00:00
dee12d8110
Avoid some Mach-O specific alignment being done on ELF.
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llvm-svn: 114594
2010-09-22 22:27:05 +00:00
9bac6cb544
Correctly align bss.
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llvm-svn: 114556
2010-09-22 17:43:04 +00:00
f0591c1642
Implement support for .local and its "interesting" interactions with .comm.
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llvm-svn: 114382
2010-09-21 00:24:38 +00:00
32ab4558fe
Produce a R_X86_64_32 when the value is >=0.
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llvm-svn: 114339
2010-09-20 19:20:47 +00:00
57e599a82a
Make sure the STT_FILE symbol is the first one in the symbol table.
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llvm-svn: 114285
2010-09-18 15:03:21 +00:00
15829c6c4c
Add test that was missing in my previous commit.
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llvm-svn: 114248
2010-09-18 00:37:27 +00:00
44bf266111
Print the address of sections as 0 and create the metadata sections in the
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same order as gnu as.
llvm-svn: 114109
2010-09-16 19:46:31 +00:00
f7f433200b
Make sure that names like .note.GNU-stack are accepted as valid section names.
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llvm-svn: 114091
2010-09-16 17:05:55 +00:00
922e3f454b
Add support for the .zero directive.
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llvm-svn: 114077
2010-09-16 15:03:59 +00:00
f667d929ce
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.
llvm-svn: 114027
2010-09-15 21:48:40 +00:00
12d73d1f18
Add support for leb128 of absolute expressions.
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llvm-svn: 113691
2010-09-11 16:45:15 +00:00
0a96578ac0
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.
llvm-svn: 113488
2010-09-09 15:00:41 +00:00
8e92d9b68d
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.
llvm-svn: 111376
2010-08-18 18:22:37 +00:00
Jan Wen Voung