Rafael Espindola
9a98116bb7
Implement R_386_GOT32.
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llvm-svn: 116744
2010-10-18 20:47:21 +00:00
Rafael Espindola
c75defe576
Relocate with .bss instead of using the symbol. Matches gas behavior.
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llvm-svn: 116741
2010-10-18 20:25:33 +00:00
Rafael Espindola
6504490709
Reenable assert.
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llvm-svn: 116738
2010-10-18 19:33:01 +00:00
Rafael Espindola
7cc236c87f
Produce ELF::R_386_GOTPC relocations.
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llvm-svn: 116728
2010-10-18 18:36:12 +00:00
Rafael Espindola
d74116b1e8
Make the bots happy.
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llvm-svn: 116719
2010-10-18 18:03:28 +00:00
Rafael Espindola
bf9107e924
Produce a R_386_PLT32 when needed. Moved the default cases of switches to the
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start for consistency.
llvm-svn: 116715
2010-10-18 16:58:03 +00:00
Rafael Espindola
4a7459403a
Handle GOTOFF correctly on i386.
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llvm-svn: 116711
2010-10-18 16:38:04 +00:00
Benjamin Kramer
e8c2e82a84
Fix a typo and silence unused variable warnings in -Asserts build.
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llvm-svn: 116685
2010-10-17 07:38:40 +00:00
Rafael Espindola
be5c52d2dc
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.
llvm-svn: 116675
2010-10-16 18:23:53 +00:00
Michael J. Spencer
f9a7c39ecc
MC-COFF: Add support for default-null weak externals.
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llvm-svn: 116666
2010-10-16 08:25:57 +00:00
Daniel Dunbar
fedc37ce15
MC/AsmParser: Report .stabs directive as unsupported.
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llvm-svn: 116659
2010-10-16 04:56:42 +00:00
Rafael Espindola
125360f835
Refactor alias handling to AliasedSymbol.
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llvm-svn: 116600
2010-10-15 18:25:33 +00:00
Rafael Espindola
9b114d966a
Refactor code a bit and avoid creating unnecessary entries in the string
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map.
llvm-svn: 116579
2010-10-15 15:39:06 +00:00
Rafael Espindola
2cdc3d6235
Remove some code duplication.
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llvm-svn: 116484
2010-10-14 16:34:44 +00:00
Michael J. Spencer
56d81e7eae
MC-COFF: Fix .bss section size. Fixes PR8335. Patch by NAKAMUTA Takumi!
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llvm-svn: 116155
2010-10-09 16:04:45 +00:00
Michael J. Spencer
4dc462314c
MC-COFF: Implement InitSections. Fixes PR8335.
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llvm-svn: 116151
2010-10-09 15:44:27 +00:00
Michael J. Spencer
9e8793d7d6
MC-COFF: Add COFFAsmParser. Completes PR8343.
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llvm-svn: 116150
2010-10-09 11:01:07 +00:00
Michael J. Spencer
1c60bd155b
Fix Whitespace.
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llvm-svn: 116149
2010-10-09 11:00:50 +00:00
Michael J. Spencer
3066a09189
MC-COFF: Assert on non-coff sections.
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llvm-svn: 116148
2010-10-09 11:00:37 +00:00
Michael J. Spencer
a2f33dfddc
MC: Move ParseDirectiveELFType into ELFAsmParser. COFF uses .type for something else.
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llvm-svn: 116142
2010-10-09 03:47:55 +00:00
Michael J. Spencer
43ccdd557d
MC-COFF: Handle relaxation in COFF better. Fixes PR8321.
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llvm-svn: 116013
2010-10-07 23:55:40 +00:00
NAKAMURA Takumi
4568ebde72
Minor cosmetic change: fix DOSish \r\n.
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llvm-svn: 115910
2010-10-07 07:21:04 +00:00
Michael J. Spencer
85094f7689
MC-COFF: Fix symbol aliases. Fixes PR8251.
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llvm-svn: 115909
2010-10-07 06:29:33 +00:00
Rafael Espindola
d0417ac2e1
Another case of 256 sections not being enough :-)
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llvm-svn: 115858
2010-10-06 22:28:19 +00:00
Rafael Espindola
ed469a30f0
Get binding and visibility info from the the alias, but Type from the symbol
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being aliased.
llvm-svn: 115836
2010-10-06 21:02:29 +00:00
Michael J. Spencer
b1c4f7b52a
MC: Add missing forward in MCLoggingStreamer.
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llvm-svn: 115830
2010-10-06 20:36:47 +00:00
Rafael Espindola
6283a4a478
If a symbol is global, reloc against it even if it is in a mergeable section.
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llvm-svn: 115817
2010-10-06 19:27:21 +00:00
Rafael Espindola
d085e53b36
Make sure weak symbols are listed after the local ones.
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llvm-svn: 115795
2010-10-06 16:47:31 +00:00
Rafael Espindola
0c327e6e77
Correctly handle GOTPCREL relocations.
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llvm-svn: 115793
2010-10-06 16:23:36 +00:00
Rafael Espindola
8c7f9745de
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.
llvm-svn: 115718
2010-10-05 23:57:26 +00:00
Rafael Espindola
e2bc98a2b2
Implement more alias cases.
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llvm-svn: 115699
2010-10-05 22:26:43 +00:00
Rafael Espindola
d82f0f7aac
256 sections should be enough for anyone...
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llvm-svn: 115687
2010-10-05 21:20:07 +00:00
Rafael Espindola
5762077d52
Don't crash in a strange .size directive.
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llvm-svn: 115684
2010-10-05 21:02:45 +00:00
Michael J. Spencer
079e1e2ce8
Fix Punctuation.
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llvm-svn: 115657
2010-10-05 19:48:12 +00:00
Michael J. Spencer
19b6962abb
MC-COFF: Fix (PR8278) temporary symbol relocations.
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llvm-svn: 115656
2010-10-05 19:48:03 +00:00
Rafael Espindola
0b536fb0fb
Add support for a fill value in the .zero directive.
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llvm-svn: 115655
2010-10-05 19:42:57 +00:00
Rafael Espindola
f850cfbc16
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.
llvm-svn: 115643
2010-10-05 18:01:23 +00:00
Rafael Espindola
e829a55e8e
Produce a undefined reference to _GLOBAL_OFFSET_TABLE_ when needed.
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llvm-svn: 115623
2010-10-05 15:48:37 +00:00
Rafael Espindola
5f53528867
On ELF we need to know which symbols are used in relocations to decide if
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they should be in the symbol table or not. Instead of "guessing", just compute
the symbol table after the relocations are known.
llvm-svn: 115619
2010-10-05 15:11:03 +00:00
Kevin Enderby
01b93a4319
Incorporate suggestions by Daniel Dunbar after his review. Thanks Daniel!
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1) Changed ValidateDwarfFileNumber() to isValidDwarfFileNumber() to be better
named. Since it is just a predicate and isn't actually changing any state.
2) Added a missing return in the comments for setCurrentDwarfLoc() in
include/llvm/MC/MCContext.h for fix formatting.
3) Changed clearDwarfLocSeen() to ClearDwarfLocSeen() since it does change
state.
4) Simplified the last test in isValidDwarfFileNumber() to just a one line
boolean test of MCDwarfFiles[FileNumber] != 0 for the final return statement.
llvm-svn: 115551
2010-10-04 20:17:24 +00:00
Rafael Espindola
dcac047c7f
Implement ELF::R_X86_64_GOTPCREL.
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llvm-svn: 115547
2010-10-04 19:51:39 +00:00
Rafael Espindola
6b80b08cec
Move isFixupKindX86PCRel.
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llvm-svn: 115545
2010-10-04 19:46:28 +00:00
Rafael Espindola
f7e642c0da
Produce a R_X86_64_PLT32 when needed.
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llvm-svn: 115541
2010-10-04 19:04:13 +00:00
Rafael Espindola
08361a0329
Produce a R_X86_64_GOT32 when needed.
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llvm-svn: 115537
2010-10-04 18:44:25 +00:00
Jan Wen Voung
9c76bbf90a
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
Rafael Espindola
491c3f9ef7
Include the section address in the computation of the relocation.
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llvm-svn: 115509
2010-10-04 15:59:01 +00:00
Rafael Espindola
ce6ea76503
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
Rafael Espindola
e209fd8ab7
Implement a very basic PIC case.
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llvm-svn: 115454
2010-10-03 00:46:57 +00:00
Kevin Enderby
84d750a85c
This adds a Darwin x86_64 relocation encoding for a subtraction expression
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where both symbols are "local", that is non-external symbols, and there is
no "base" for the symbols used in the expression, that is the section has
no non-temporary symbols. This case looks like this:
% cat local_reloc_A-B.s
.long 0
LB: .long 1
.long LA - LB - 4
.long 2
LA: .long 3
which llvm-mc will not encode without this patch, generates a "unsupported
local relocations in difference" error, but the Darwin assembler will
encode with relocation entries like this:
% otool -rv a.out l.out
a.out:
Relocation information (__TEXT,__text) 2 entries
address pcrel length extern type scattered symbolnum/value
00000008 False long False SUB False 1 (__TEXT,__text)
00000008 False long False UNSIGND False 1 (__TEXT,__text)
which is very similar to what is encoded when the symbols don't have the
leading 'L' and they are not temporary symbols. Which llvm-mc and the
Darwin assembler will encoded like this:
Relocation information (__TEXT,__text) 2 entries
address pcrel length extern type scattered symbolnum/value
00000008 False long True SUB False B
00000008 False long True UNSIGND False A
This is the missing relocation encoding needed to allow the Mach-O x86
Dwarf file and line table to be emitted. So this patch also removes the
TODO from the if() statement in MCMachOStreamer::Finish() that didn't
call MCDwarfFileTable::Emit() for 64-bit targets.
llvm-svn: 115389
2010-10-02 00:13:41 +00:00
Rafael Espindola
5aae0d6863
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