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120 Commits

Author SHA1 Message Date
Daniel Dunbar
115a3dd066 MC: Simplify Mach-O and ELF object writer implementations. 
- What was I thinking?????

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118992 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-13 07:33:40 +00:00
Benjamin Kramer
1261a2ff99 MCELF: Copy the symbol name only if we're going to modify it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-12 19:26:04 +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
3f2d13c98e Remove some explicit arguments to getELFSection. This is 
a leftover from the removal of isExplicit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118774 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 03:40:25 +00:00
Rafael Espindola
c87a94a942 Factor some code into WriteSection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118733 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:36:59 +00:00
Rafael Espindola
1d739a010d Update the section index map after we add the medatada sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:34:07 +00:00
Rafael Espindola
4beee3d06b Use SectionIndexMap in WriteSymbolTable to make it a little less brittle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:16:43 +00:00
Rafael Espindola
bab2a80525 Factor some code into ComputeIndexMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:51:05 +00:00
Rafael Espindola
af3d38f70e Change the String<size> methods to take a fragment instead of a buffer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:02:59 +00:00
Rafael Espindola
4283f4b81e Use MCSectionELF in places we know we have an ELF section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:05:07 +00:00
Rafael Espindola
34be396a12 Fixed version of 118639 with an extra assert to catch similar problems 
earlier. Implicit bool -> int conversions are evil!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118651 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 23:42:07 +00:00
Rafael Espindola
037b5be15a Revert previous patch. Missed a case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118645 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:54:38 +00:00
Rafael Espindola
e61a1ac595 Remove IsExplicit. It was always false. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118639 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 22:37:44 +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
7be2c33193 Add support for files with more than 65280 sections. No testcase since 
it would be a bit too big :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117849 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-31 00:16:26 +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
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
Benjamin Kramer
07ee63283c Replace pointer arithmetic with StringRef::substr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117477 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 19:53:52 +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
a6866969ba Move more logic to isInSymtab and simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117447 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 14:44:52 +00:00
Rafael Espindola
cecbc3d282 Add support for emitting ARM file attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117275 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-25 17:50:35 +00:00
Rafael Espindola
24ba4f7f5f Add X86::reloc_global_offset_table and use it to have a single place where 
we check for _GLOBAL_OFFSET_TABLE_.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117241 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-24 17:35:42 +00:00
Wesley Peck
eecb858ca8 Making the e_machine configurable by the target backend in ELFObjectWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117099 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-22 15:52:49 +00:00
Rafael Espindola
bd70118f16 Small cleanups and fixes in preparation for fixing _GLOBAL_OFFSET_TABLE_. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116848 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 19:31:37 +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
24dc9ecdc5 Reenable assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116738 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 19:33:01 +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
9baee3b3a3 Make the bots happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116719 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 18:03:28 +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
Benjamin Kramer
24f1206c7d Fix a typo and silence unused variable warnings in -Asserts build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116685 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-17 07:38:40 +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
de89b010b0 Refactor alias handling to AliasedSymbol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116600 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-15 18:25:33 +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
d8e0bfe07a Another case of 256 sections not being enough :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 22:28:19 +00:00