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236 Commits

Author SHA1 Message Date
Craig Topper
f1d0f7781e Prune some includes and forward declarations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153429 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-26 06:58:25 +00:00
Akira Hatanaka
00ca888ccc Add a hook in MCELFObjectTargetWriter to allow targets to sort relocation 
entries in the relocation table before they are written out to the file. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153345 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-03-23 23:06:45 +00:00
Benjamin Kramer
263109d822 Remove a bunch of unused variable assignments. 
Found by the clang static analyzer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148541 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-20 14:42:32 +00:00
Rafael Espindola
3963d617b3 Kill the monstrosity that was ELFObjectWriter.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147136 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 03:38:00 +00:00
Rafael Espindola
7bd278019d Misc cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147135 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 03:24:43 +00:00
Rafael Espindola
090445967f Move the Mips only bits of the ELF writer to lib/Target/Mips. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147133 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 03:03:17 +00:00
Rafael Espindola
4982159b88 Move the MBlaze ELF writer bits to lib/Target/MBlaze. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147129 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 02:28:24 +00:00
Rafael Espindola
f3a86fb03d Move PPC bits to lib/Target/PowerPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147124 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 01:57:09 +00:00
Akira Hatanaka
bc24985c5f Local dynamic TLS model for direct object output. Create the correct TLS MIPS 
ELF relocations.

Patch by Jack Carter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147118 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 01:05:17 +00:00
Rafael Espindola
69bbda0391 Move the ARM specific parts of the ELF writer to Target/ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147115 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 00:37:50 +00:00
Rafael Espindola
e99183d2ac getEFlags is const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147114 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 00:21:50 +00:00
Rafael Espindola
e8526d030f Switch from WriteEFlags to getEFlags in preparation for moving it 
to Target/.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147087 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 20:09:46 +00:00
Rafael Espindola
edae8e1e4d Move the X86 specific bits of the ELF writer to the Target/X86 directory. 
Other targets will follow shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147060 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 17:30:17 +00:00
Rafael Espindola
dc9a8a378d Reduce the exposure of Triple::OSType in the ELF object writer. This will 
avoid including ADT/Triple.h in many places when the target specific bits are
moved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147059 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 17:00:36 +00:00
Rafael Espindola
c677e790e5 Small refactoring so that RelocNeedsGOT can stay in the target independent 
side when the target specific bits are moved to the Target directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147053 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 14:26:29 +00:00
Akira Hatanaka
f3315cf65f Relocation against a symbol, instead of against section. We had some extreme 
test cases where there were a lot of relocations applied relative to a large
rodata section. Gas would create a symbol for each of these whereas we would
be relative to the beginning of the rodata section. This change mimics what
gas does.

Patch by Jack Carter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146468 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-13 02:27:40 +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
Bruno Cardoso Lopes
e3d3572e28 Add a few moreLocal/Global R_MIPS_GOT related fixups and 
make the addend fixup code a bit more generic

Patch by Jack Carter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145998 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-07 00:28:57 +00:00
Bruno Cardoso Lopes
a00a62acd0 Explicit symbols for gnu mimicing relocations. Patch by Jack Carter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145911 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-06 03:34:42 +00:00
Jim Grosbach
f68a26b5d8 Tidy up. Hard tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145878 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-06 00:13:09 +00:00
Jim Grosbach
f77d5b14af Switch MCAssembler to method names starting w/ lower-case. 
per http://llvm.org/docs/CodingStandards.html#ll_naming

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145873 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-06 00:03:48 +00:00
Akira Hatanaka
84bfc2f090 This patch addresses gp relative fixups/relocations for jump tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145112 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-23 22:18:04 +00:00
Jim Grosbach
946227d64a Tidy up. 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144649 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-15 16:46:22 +00:00
Bruno Cardoso Lopes
a0dd4cbc87 Add mips ELF relocation types. Patch by Jack Carter! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143738 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-04 22:24:36 +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
Nick Lewycky
d2fdb4a285 Don't emit the symbol table entry for the .symtab_shndx section either. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141440 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-07 23:29:53 +00:00
Nick Lewycky
4a8d43e9a7 Remove extraneous curlies. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141439 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-07 23:28:32 +00:00
Nick Lewycky
b3429d34b6 Don't emit a shstrtabindex in the reserved range. Spotted by inspection and 
patch by Cary Coutant!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141413 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-07 20:58:24 +00:00
Nick Lewycky
aaae3f6bc1 Clarify/fix typo. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141412 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-10-07 20:56:23 +00:00
Akira Hatanaka
291512f96f Add definition of MipsELFObjectWriter. 
Patch by Reed Kotler at Mips Technologies.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140891 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-30 21:55:40 +00:00
Roman Divacky
2a66cea1b8 Introduce adjustFixupOffset that adjusts the fixup offset of a relocation. 
This is meant to be overriden by backends. Implement an override on PowerPC
which adjusts the offset by 2 for ha16/lo16 relocation kinds. This removes
a commented out hack and enables hello world to be compiled on PowerPC.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136905 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 19:08:19 +00:00
Rafael Espindola
bbf9c4a14e Add an assert to check that the Addend fits the file format. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136868 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-04 13:05:26 +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
Roman Divacky
c9c0cc1e46 Comment out the PPC relocation offset adjustment. It must be done differently. 
This unbreaks some tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136692 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-02 16:15:32 +00:00
Roman Divacky
2c0d69fad0 Sketch out PowerPC ELF writer. This is enough to get clang -integrated-as 
to compile a working hello world on FreeBSD/PPC32.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136689 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-02 15:51:38 +00:00
Evan Cheng
78c10eeaa5 Rename TargetAsmBackend to MCAsmBackend; rename createAsmBackend to createMCAsmBackend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136010 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-25 23:24:55 +00:00
Evan Cheng
8c3fee5903 Refactor X86 target to separate MC code from Target code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135930 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-25 18:43:53 +00:00
Evan Cheng
a7cfc08ebe Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135833 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-23 00:45:41 +00:00
Evan Cheng
be74029f44 Sink ARM mc routines into MCTargetDesc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135825 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-23 00:00:19 +00:00
Jason W Kim
bebd44a95a Remove an uneeded switch - Turns out reloc results are identical w/o the switch. (face+palm) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132790 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-09 19:13:45 +00:00
Rafael Espindola
378e0ecf24 Produce an undefined reference to _GLOBAL_OFFSET_TABLE_ if we have a 
VK_GOTOFF reloc. This matches as' behavior, but it is not clear why the linker
might need this, so I added a FIXME.

I could test this by duplicating test/MC/ELF/got.s, but it doesn't look
worthwhile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132655 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-05 01:20:06 +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
298c8e12ea fixes target address tBL and tBLX and sets relocation type 
of tBL/tBLX to R_ARM_THM_CALL (ARM ELF 4.7.1.6)

Patch by koan-sin tan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131748 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 20:01:01 +00:00
Jason W Kim
97c07dac7f Add a FIXME reminder to remove ForceARMElfPIC switch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131411 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-16 16:35:21 +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
Matt Beaumont-Gay
6dcd413fbb Remove an unused variable and move a couple others inside DEBUG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131208 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 23:34:51 +00:00
Jason W Kim
e964d1192a Address the last bit of relocation flag related divergence betweeen 
LLVM and binutils.

With this patch, there are no functional differences between the .o
produced directly from LLVM versus the .s to .o via GNU as, for relocation tags
at least, for both PIC and non-PIC modes.

Because some non-PIC reloc tags are used (legally) on PIC, so IsPCRel flag is
necessary but not sufficient to determine whether the overall codegen mode is
PIC or not. Why is this necessary? There is an incompatibility of how relocs
are emitted in the .rodata section.  Binutils PIC likes to emit certain relocs
as section relative offsets.  Non-PIC does not do this.

So I added a hidden switch on the ELFObjectwriter "-arm-elf-force-pic" which
forces the objectwriter to pretend that all relocs are for PIC mode.


Todo: Activate ForceARMElfPIC to true if -relocation-model=pic is selected
on llc.

Todo: There are probably more issues for PIC mode on ARM/MC/ELF...

Todo: Existing tests in MC/ARM/elf-reloc*.ll need to be converted over to .s 
tests as well as expanded to cover the gamut.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131205 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-11 22:53:06 +00:00
Rafael Espindola
debd7e4e8b Simplify the handling of pcrel relocations on ELF. Now we do the right thing 
for all symbol differences and can drop the old EmitPCRelSymbolValue
method.

This also make getExprForFDESymbol on ELF equal to the one on MachO, and it
can be made non-virtual.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130634 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-01 03:50:49 +00:00
Rafael Espindola
d5321da8d2 Micro optimization and improved similarity with gas' output: 
When two section names share a suffix, reuse the entry in shstrtab.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129115 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-07 23:21:52 +00:00