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f050a00c17
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872 Commits

Author SHA1 Message Date
Daniel Dunbar
f050a00c17 MC/Mach-O: Introduce Object/MachOFormat for describing purely platform / machine 
independent information on the Mach object format, and move some stuff from
MachObjectWriter.cpp there.

llvm-svn: 120186
 2010-11-27 04:19:38 +00:00
Rafael Espindola
0641196380 Remove the unused TheTarget member. 
llvm-svn: 120168
 2010-11-26 04:24:21 +00:00
Michael J. Spencer
b2cfb3b443 Fix Whitespace. 
llvm-svn: 120166
 2010-11-26 04:16:08 +00:00
Rafael Espindola
a8488b04e1 Factor some code to parseSectionFlags and fix the default type of a section. 
llvm-svn: 120145
 2010-11-25 15:32:56 +00:00
Rafael Espindola
1a81f03f87 Behave a bit more like gnu as and use the symbol (instead of the section) 
for any relocation to a symbol defined in a tls section.

llvm-svn: 120121
 2010-11-24 21:57:39 +00:00
Rafael Espindola
97690e2d7d Relocate with the symbol if the relocation is of kind NTPOFF. 
Patch by David Meyer, I added the test.

llvm-svn: 120104
 2010-11-24 19:23:50 +00:00
Rafael Espindola
81ecba9559 Fix and add tests for all cases in x86 and x86_64 where gnu as implicitly 
sets the type of a symbol to STT_TLS.

llvm-svn: 120100
 2010-11-24 18:51:21 +00:00
Rafael Espindola
dc299d2615 If a symbol is used as tls, mark it as tls even if not declare as so. Probably 
fixes PR8659.

llvm-svn: 120076
 2010-11-24 02:19:40 +00:00
Rafael Espindola
af4cd15f2a Invalidate the layout on any relaxation, not just Instructions. Bug found by David Meyer. 
While here, remove unused argument and rename UpdateForSlide to Invalidate.

llvm-svn: 120009
 2010-11-23 08:08:33 +00:00
Rafael Espindola
a660c25883 Reuse data fragments while lowering. Patch by David Meyer. 
llvm-svn: 119999
 2010-11-23 05:49:35 +00:00
Jason W Kim
287d5fb10b Fixed some style issues (no _, no spc after !) 
llvm-svn: 119986
 2010-11-22 22:05:16 +00:00
Jason W Kim
0941164ddb Make the <ARCH>ELFObjectWriter statics private 
llvm-svn: 119982
 2010-11-22 18:57:00 +00:00
Jason W Kim
243d3f5d8c Fix misplaced statics. 
llvm-svn: 119981
 2010-11-22 18:47:05 +00:00
Jason W Kim
dea9f17ab2 Kill trailing whitespace 
llvm-svn: 119979
 2010-11-22 18:42:07 +00:00
Jason W Kim
e2fece2f4c Refactor the ELFRelocationEntry (pull up) and move the arch-specific statics to inside the class where it belongs. 
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
Rafael Espindola
e20c3d7c26 Add basic CFI methods to the streamer interface. 
llvm-svn: 119972
 2010-11-22 14:27:24 +00:00
Rafael Espindola
5f582e980e Remove some #includes. 
llvm-svn: 119967
 2010-11-22 11:53:17 +00:00
Wesley Peck
e25f241e37 Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests. 
llvm-svn: 119952
 2010-11-21 22:06:28 +00:00
Rafael Espindola
ee6aea622f Handle PCRel relocations with absolute values. Fixes PR8656. 
llvm-svn: 119917
 2010-11-21 00:48:25 +00:00
Kevin Enderby
214e641d8d Added support for the Mach-O .symbol_resolver directive. rdar://8673046 
llvm-svn: 119816
 2010-11-19 18:39:33 +00:00
Rafael Espindola
7c6bd9e0f9 Add a MCLineSectionOrder vector so that we produce the line tables in a 
deterministic order.

llvm-svn: 119795
 2010-11-19 07:41:23 +00:00
Rafael Espindola
a06725942f Add an assert. 
llvm-svn: 119788
 2010-11-19 04:55:36 +00:00
Rafael Espindola
921ef0c471 Fix llvm-gcc boostrap on OS X by avoiding printing sleb and uleb when 
possible.

llvm-svn: 119785
 2010-11-19 04:10:13 +00:00
Rafael Espindola
b33e5e07e1 Change some methods in MCDwarf.cpp to be able to handle an arbitrary 
MCStreamer instead of just MCObjectStreamer. Address changes cannot
be as efficient as we have to use DW_LNE_set_addres, but at least
most of the logic is shared.

This will be used so that, with CodeGen still using EmitDwarfLocDirective,
llvm-gcc is able to produce debug_line sections without needing an
assembler that supports .loc.

llvm-svn: 119777
 2010-11-19 02:26:16 +00:00
Rafael Espindola
93a07b464e Change CodeGen to use .loc directives. This produces a lot more readable output 
and testing is easier.  A good example is the unknown-location.ll test that
now can just look for ".loc 1 0 0".  We also don't use a DW_LNE_set_address for
every address change anymore.

llvm-svn: 119613
 2010-11-18 02:04:25 +00:00
Rafael Espindola
7fc5cd0a58 make isVirtualSection a virtual method on MCSection. Chris' suggestion. 
llvm-svn: 119547
 2010-11-17 20:03:54 +00:00
Jim Grosbach
122ce7f051 Fix typo. 
llvm-svn: 119542
 2010-11-17 19:30:11 +00:00
Rafael Espindola
b6fcca35a2 Add support for .int. 
llvm-svn: 119512
 2010-11-17 16:24:40 +00:00
Rafael Espindola
9186952072 Add support for .2byte, .4byte and .8byte. 
Fixes PR8631.

llvm-svn: 119511
 2010-11-17 16:15:42 +00:00
Daniel Dunbar
1890e9a6b7 MC-JIT: Stub out "pure" streamer. 
- No immediate use, but maybe someone feels like hacking on it.

llvm-svn: 119510
 2010-11-17 16:06:47 +00:00
Rafael Espindola
283e6bd938 Add .loc methods to the streamer. 
Next: Add support for the !HasDotLocAndDotFile case to the MCAsmStreamer
and then switch codegen to use it.

llvm-svn: 119384
 2010-11-16 21:20:32 +00:00
Rafael Espindola
dc0be5a0cc Parse and ignore some .cfi_* directives. 
llvm-svn: 119362
 2010-11-16 18:34:07 +00:00
Rafael Espindola
47e7ef8c8f A bit more of gnu as compatibility when handling relocations with aliases. 
llvm-svn: 119328
 2010-11-16 04:11:46 +00:00
Benjamin Kramer
8ee77c5320 Fix compiler warnigns. 
llvm-svn: 119175
 2010-11-15 19:20:50 +00:00
Rafael Espindola
1f6440b1e2 Change MCExpr::EvaluateAsRelocatableImpl of variables to return the original 
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
Jason W Kim
8dc24d5066 Dovetail with Dan Dunbar's rework of ELFObjectWriter. 
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
Rafael Espindola
f6c0121c93 Fix PR8565. 
This moves most of the isUsed logic to the MCSymbol itself. With this we
get a bit more relaxed about allowing definitions after uses: uses that
don't evaluate their argument immediately (jmp foo) are accepted.

ddunbar, this was the smallest compromise I could think of that lets us
accept gcc (and clang!) assembly.

llvm-svn: 119144
 2010-11-15 14:40:36 +00:00
Chris Lattner
3b5f2a871a correct the fixup comment printer to work on big endian platforms. 
llvm-svn: 119122
 2010-11-15 05:56:19 +00:00
Chris Lattner
9a0a840839 add targetoperand flags for jump tables, constant pool and block address 
nodes to indicate when ha16/lo16 modifiers should be used.  This lets
us pass PowerPC/indirectbr.ll.

The one annoying thing about this patch is that the MCSymbolExpr isn't
expressive enough to represent ha16(label1-label2) which we need on
PowerPC.  I have a terrible hack in the meantime, but this will have
to be revisited at some point.

Last major conversion item left is global variable references.

llvm-svn: 119105
 2010-11-15 02:46:57 +00:00
Rafael Espindola
5572cb1aed Move the logic to decide with which symbol we produce a relocation (if any) to 
a central location. This also makes us a bit more compatible with gas.

llvm-svn: 119094
 2010-11-14 23:53:26 +00:00
Chris Lattner
fc626aa37d reimplement ppc asmprinter "toc" handling to use a VariantKind 
on the operand, required for .o file writing and fixing 
the PowerPC/mult-alt-generic-powerpc64.ll failure with the new
instprinter.

llvm-svn: 119087
 2010-11-14 22:22:59 +00:00
Rafael Espindola
59a93284d7 Fix another case of a .comm directive without a corresponding .type 
directive.

llvm-svn: 119073
 2010-11-14 21:11:16 +00:00
Rafael Espindola
1884e6d475 Fix the type of a symbol created with .comm and no corresponding .type. 
llvm-svn: 119060
 2010-11-14 19:40:55 +00:00
Rafael Espindola
444d9c0b02 Handle a peculiar comdat case: Creating a section with an undefined 
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
Rafael Espindola
55e673b1c2 Simplify getSymbolIndexInSymbolTable by setting the actual index of 
the symbols.

llvm-svn: 119022
 2010-11-14 03:12:24 +00:00
Rafael Espindola
1b4c835948 Fix warning. 
llvm-svn: 119021
 2010-11-14 01:34:31 +00:00
Daniel Dunbar
2ba9f79194 MC: Simplify Mach-O and ELF object writer implementations. 
- What was I thinking?????

llvm-svn: 118992
 2010-11-13 07:33:40 +00:00
Rafael Espindola
d2ff64abae Fix warning and add support for printing gnu_unique_object. 
llvm-svn: 118981
 2010-11-13 04:55:06 +00:00
Rafael Espindola
9cd0fd30e0 Parse and record the gnu_unique_object type. 
llvm-svn: 118980
 2010-11-13 04:51:02 +00:00
Rafael Espindola
00c5605efc Parse and remember discriminators in .loc line. I try to output them with 
another patch.
This lets us parse a bit more of the gcc 4.5 output.

llvm-svn: 118975
 2010-11-13 03:18:27 +00:00