16b75262c4
Make the <ARCH>ELFObjectWriter statics private
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llvm-svn: 119982
2010-11-22 18:57:00 +00:00
84ffdd5cf1
Fix misplaced statics.
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llvm-svn: 119981
2010-11-22 18:47:05 +00:00
a262546df7
Kill trailing whitespace
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llvm-svn: 119979
2010-11-22 18:42:07 +00:00
7c7d0ef287
Refactor the ELFRelocationEntry (pull up) and move the arch-specific statics to inside the class where it belongs.
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Next step is to rationally break apart the RecordRelocation()
Probably the step will be to have 1 member function for ech slot of the ELFRelocationEntry()
llvm-svn: 119978
2010-11-22 18:41:13 +00:00
7699d6cfe9
Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests.
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llvm-svn: 119952
2010-11-21 22:06:28 +00:00
26cb15a549
Handle PCRel relocations with absolute values. Fixes PR8656.
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llvm-svn: 119917
2010-11-21 00:48:25 +00:00
7d19efd6ff
A bit more of gnu as compatibility when handling relocations with aliases.
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llvm-svn: 119328
2010-11-16 04:11:46 +00:00
202d91e433
Fix compiler warnigns.
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llvm-svn: 119175
2010-11-15 19:20:50 +00:00
8c3039b67b
Change MCExpr::EvaluateAsRelocatableImpl of variables to return the original
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variable if recursing fails to simplify it.
Factor AliasedSymbol to be a method of MCSymbol.
Update MCAssembler::EvaluateFixup to match the change in
EvaluateAsRelocatableImpl.
Remove the WeakRefExpr hack, as the object writer now sees the weakref with
no extra effort needed.
Nothing else is using MCTargetExpr, but keep it for now.
Now that the ELF writer sees relocations with aliases, handle
.weak foo2
foo2:
.weak bar2
.set bar2,foo2
.quad bar2
the same way gas does and produce a relocation with bar2.
llvm-svn: 119152
2010-11-15 16:33:49 +00:00
96f4c01cb3
Dovetail with Dan Dunbar's rework of ELFObjectWriter.
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Added 2 new subclasses - X86ELFObjectWriter and ARMELFObectWriter.
ARM and X86 require different code for RecordRelocation(), possibly others.
llvm-svn: 119149
2010-11-15 16:18:39 +00:00
240028d11d
Move the logic to decide with which symbol we produce a relocation (if any) to
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a central location. This also makes us a bit more compatible with gas.
llvm-svn: 119094
2010-11-14 23:53:26 +00:00
7d0ba3464e
Handle a peculiar comdat case: Creating a section with an undefined
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signature symbol causes a local symbol to be created unless there is
some other use of the symbol.
llvm-svn: 119026
2010-11-14 04:17:37 +00:00
0e3decfcf7
Simplify getSymbolIndexInSymbolTable by setting the actual index of
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the symbols.
llvm-svn: 119022
2010-11-14 03:12:24 +00:00
fe0c28f4db
MC: Simplify Mach-O and ELF object writer implementations.
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- What was I thinking?????
llvm-svn: 118992
2010-11-13 07:33:40 +00:00
dcc7732f88
MCELF: Copy the symbol name only if we're going to modify it.
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llvm-svn: 118920
2010-11-12 19:26:04 +00:00
a3e9a2298d
Initial comdat implementation.
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llvm-svn: 118805
2010-11-11 18:13:52 +00:00
fb6540c112
Make AliasedSymbol able to handle MCTargetExpr. They can get here if
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a weakref is used with a VariantKind.
llvm-svn: 118798
2010-11-11 17:24:43 +00:00
fa7b55754c
Fix the symbol index of weak references. Also make RecordRelocation a bit
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easier to read by having const references to the symbol, aliased symbol and
renamed symbol.
llvm-svn: 118793
2010-11-11 16:48:11 +00:00
19fa38000a
Remove some explicit arguments to getELFSection. This is
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a leftover from the removal of isExplicit.
llvm-svn: 118774
2010-11-11 03:40:25 +00:00
5a8d781caa
Factor some code into WriteSection.
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llvm-svn: 118733
2010-11-10 23:36:59 +00:00
eb97f59753
Update the section index map after we add the medatada sections.
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llvm-svn: 118728
2010-11-10 22:34:07 +00:00
1801410fa8
Use SectionIndexMap in WriteSymbolTable to make it a little less brittle.
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llvm-svn: 118725
2010-11-10 22:16:43 +00:00
d634003ebd
Factor some code into ComputeIndexMap.
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llvm-svn: 118722
2010-11-10 21:51:05 +00:00
51d68339a2
Change the String<size> methods to take a fragment instead of a buffer.
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llvm-svn: 118709
2010-11-10 20:02:59 +00:00
36ef57d2eb
Use MCSectionELF in places we know we have an ELF section.
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llvm-svn: 118699
2010-11-10 19:05:07 +00:00
9bb44a5ce8
Fixed version of 118639 with an extra assert to catch similar problems
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earlier. Implicit bool -> int conversions are evil!
llvm-svn: 118651
2010-11-09 23:42:07 +00:00
33048f069f
Revert previous patch. Missed a case.
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llvm-svn: 118645
2010-11-09 22:54:38 +00:00
4bdd2724e3
Remove IsExplicit. It was always false.
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llvm-svn: 118639
2010-11-09 22:37:44 +00:00
1614597873
Implement .weakref.
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llvm-svn: 117911
2010-11-01 14:28:48 +00:00
3fe87a1eed
Add support for files with more than 65280 sections. No testcase since
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it would be a bit too big :-)
llvm-svn: 117849
2010-10-31 00:16:26 +00:00
45834a0065
Be more strict on when we produce an undefined reference. In gas a file with
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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.
llvm-svn: 117735
2010-10-29 23:09:31 +00:00
3c5a54e4b9
Defined weak symbols should have non-zero value.
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llvm-svn: 117585
2010-10-28 19:39:57 +00:00
29f70afbae
Fix relocations with renamed symbols.
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llvm-svn: 117575
2010-10-28 19:08:03 +00:00
6cd76e63f8
Aliases defined with .symver should copy the binding of the symbols they alias.
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Move the existing patching for undefined symbols so that all the patching
is done in the same function.
llvm-svn: 117570
2010-10-28 18:33:03 +00:00
936ba3af28
Implement R_X86_64_DTPOFF32.
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llvm-svn: 117548
2010-10-28 15:11:03 +00:00
2dbec3f762
Implement TLSLD.
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llvm-svn: 117547
2010-10-28 15:02:40 +00:00
e8f08be11c
Implement DTPOFF.
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llvm-svn: 117546
2010-10-28 14:48:59 +00:00
6f23eb380d
Implement TLSLDM.
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llvm-svn: 117544
2010-10-28 14:37:09 +00:00
b3b49bbc39
Implement VK_GOTNTPOFF and switch RelocNeedsGOT to use VariantKind.
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llvm-svn: 117543
2010-10-28 14:22:44 +00:00
f8537165bd
Add support for R_386_TLS_GD, R_386_TLS_LE_32, R_386_TLS_IE and R_386_TLS_LE.
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llvm-svn: 117494
2010-10-27 21:23:52 +00:00
24c8b04d5f
Implement R_X86_64_GOTTPOFF, R_X86_64_TLSGD and R_X86_64_TPOFF32.
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llvm-svn: 117481
2010-10-27 20:28:07 +00:00
14807270be
Replace pointer arithmetic with StringRef::substr.
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llvm-svn: 117477
2010-10-27 19:53:52 +00:00
26496e6835
Produce an error for an invalid use of .symver.
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llvm-svn: 117462
2010-10-27 17:56:18 +00:00
cc1b168ef6
Symbols defined as the difference of other two end up in the ABS section.
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llvm-svn: 117451
2010-10-27 16:04:30 +00:00
eb0c2c170d
Add support for the .symver directive. This is really ugly, but most of it is
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contained in the ELF object writer.
llvm-svn: 117448
2010-10-27 15:18:17 +00:00
a5efd6a27c
Move more logic to isInSymtab and simplify.
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llvm-svn: 117447
2010-10-27 14:44:52 +00:00
0ed1543d4e
Add support for emitting ARM file attributes.
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llvm-svn: 117275
2010-10-25 17:50:35 +00:00
800fd3533c
Add X86::reloc_global_offset_table and use it to have a single place where
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we check for _GLOBAL_OFFSET_TABLE_.
llvm-svn: 117241
2010-10-24 17:35:42 +00:00
1851090515
Making the e_machine configurable by the target backend in ELFObjectWriter.
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llvm-svn: 117099
2010-10-22 15:52:49 +00:00
ee8d15157a
Small cleanups and fixes in preparation for fixing _GLOBAL_OFFSET_TABLE_.
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llvm-svn: 116848
2010-10-19 19:31:37 +00:00
Jason W Kim