6bd6a70837
Add the getExprForFDESymbol method that responsible for computing the
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expressions used in the FDE to refer to symbols.
llvm-svn: 130437
2011-04-28 21:04:39 +00:00
c5dac4df2e
Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it when
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converting the symbol passed to .cfi_personality into bytes is the file.
llvm-svn: 130400
2011-04-28 16:09:09 +00:00
349c3298da
Mark the EH symbol global or weak if the corresponding function is.
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llvm-svn: 130397
2011-04-28 12:50:37 +00:00
2eeee8cfef
Add a small temporary hack for producing identical eh_frame sections on OS X.
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This removes one of the main advantages of moving eh_frame to MC, but
makes the transition a lot easier to debug (run md5).
llvm-svn: 130379
2011-04-28 04:04:14 +00:00
bf60fb0a37
Produce the EH_frame# symbols if needed.
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llvm-svn: 130378
2011-04-28 03:26:11 +00:00
96b07932a3
Forward isFunctionEHFrameSymbolPrivate. If it is false, produce the foo.eh
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symbols.
llvm-svn: 130375
2011-04-28 02:46:42 +00:00
ae124da625
Force some values to be absolute and align based on the FDE pointers size. A small
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step towards using .cfi_* on OS X.
llvm-svn: 130273
2011-04-27 01:43:49 +00:00
bab81b9797
Delete the other unused variable in this function. Sorry I missed this
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the first time through.
llvm-svn: 129969
2011-04-22 01:29:18 +00:00
ea41470726
Remove an unused variable from a function. This is a likely cut-paste-o.
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Silences GCC warning.
I wonder why Clang doesn't warn on this...
llvm-svn: 129968
2011-04-22 01:21:06 +00:00
5395f44fe8
Compute the size of the FDE encoding instead of hard coding it. Update
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X8664_ELFTargetObjectFile::getFDEEncoding to match reality.
llvm-svn: 129959
2011-04-22 00:08:43 +00:00
6aea59268a
Remove unused argument.
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llvm-svn: 129955
2011-04-21 23:39:26 +00:00
ea61f22dd3
Don't pass address spaces to EmitULEB128IntValue.
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llvm-svn: 129953
2011-04-21 23:26:40 +00:00
fd794affe5
Remove LastOffset from the asm parser.
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llvm-svn: 129378
2011-04-12 18:53:30 +00:00
1ec0f46169
Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.
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llvm-svn: 129362
2011-04-12 16:12:03 +00:00
2e1c9d2188
Implement .cfi_same_value.
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llvm-svn: 129361
2011-04-12 15:31:05 +00:00
2f93128109
Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.
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llvm-svn: 123170
2011-01-10 12:39:04 +00:00
570dd787a6
Make a bunch of symbols internal.
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llvm-svn: 122642
2010-12-30 22:34:44 +00:00
46a5b05207
Correctly encode pcrel|indirect.
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llvm-svn: 122624
2010-12-29 04:31:26 +00:00
563301dfdb
Fix bug when trying to output uint16_t or uint32_t.
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llvm-svn: 122615
2010-12-29 02:30:49 +00:00
290d71671e
Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks
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like 6 is a fixed point of that and so the previous tests were OK :-)
llvm-svn: 122614
2010-12-29 01:42:56 +00:00
6bbfb6c06c
Don't produce a "DW_CFA_advance_loc 0".
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llvm-svn: 122609
2010-12-28 23:38:03 +00:00
85d91982ca
Implement .cfi_remember_state and .cfi_restore_state.
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llvm-svn: 122602
2010-12-28 18:36:23 +00:00
3784c5ea3c
Fix warning about size potentially being used uninitialized
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when doing a release build.
llvm-svn: 122594
2010-12-28 10:02:42 +00:00
736a35d9ab
Relax address updates in the eh_frame section.
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llvm-svn: 122591
2010-12-28 05:39:27 +00:00
a75b87b55a
Start adding basic support for emitting the call frame instructions.
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llvm-svn: 122590
2010-12-28 04:15:37 +00:00
1de2dd0e5e
Add support for .cfi_lsda.
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llvm-svn: 122584
2010-12-27 15:56:22 +00:00
2ac8355ecd
Add support for the same encodings of the personality function that gnu as
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supports.
llvm-svn: 122577
2010-12-27 00:36:05 +00:00
54462cd730
Fix .cfi_personality on 32 bit systems.
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llvm-svn: 122570
2010-12-26 22:47:37 +00:00
9141b611ad
Add basic support for .cfi_personality.
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llvm-svn: 122566
2010-12-26 20:20:31 +00:00
32c74ea3ab
"Fix" FDE alignment to match what gas does.
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llvm-svn: 122006
2010-12-17 00:28:02 +00:00
0a017a6db2
Fixed version of 121434 with no new memory leaks.
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llvm-svn: 121471
2010-12-10 07:39:47 +00:00
a945a34c73
Revert my previous patch to make the valgrind bots happy.
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llvm-svn: 121461
2010-12-10 04:01:09 +00:00
56eb741237
Initial support for the cfi directives. This is just enough to get
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f:
.cfi_startproc
nop
.cfi_endproc
assembled (on ELF).
llvm-svn: 121434
2010-12-09 23:48:29 +00:00
d66e65df03
Use const references.
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llvm-svn: 121426
2010-12-09 23:08:35 +00:00
44bbe36de6
Second try at making direct object emission produce the same results
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as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.
llvm-svn: 121006
2010-12-06 17:27:56 +00:00
dee3062373
Revert previous two patches while I try to find out how to make both
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linux and darwin assemblers happy :-(
llvm-svn: 121004
2010-12-06 15:35:15 +00:00
34a06a0802
Add an EmitAbsValue helper method and use it in cases where we want to be sure
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that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.
llvm-svn: 121000
2010-12-06 14:53:14 +00:00
99e026dbca
Remember the contents of leb and dwarfline fragments when relaxing. This avoids
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having to evaluate the expression again when writing.
llvm-svn: 120920
2010-12-04 21:58:52 +00:00
1c8ac8f027
There are two reasons why we might want to use
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foo = a - b
.long foo
instead of just
.long a - b
First, on darwin9 64 bits the assembler produces the wrong result. Second,
if "a" is the end of the section all darwin assemblers (9, 10 and mc) will not
consider a - b to be a constant but will if the dummy foo is created.
Split how we handle these cases. The first one is something MC should take care
of. The second one has to be handled by the caller.
llvm-svn: 120889
2010-12-04 03:21:47 +00:00
1048e75fb9
Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoid
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doing that if the target is darwin10 or newer.
This fixes
*) Direct object emission was producing objects without the workaround on
darwin9.
*) Assembly printing was producing objects with the workaround on linux.
llvm-svn: 120866
2010-12-04 00:31:13 +00:00
f8af778e1f
First step in fixing MC. Make it clear that we are avoiding a bug in the
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darwin9 linker, what is needed to avoid it and where to get more information.
Also make the workaround simpler. Just the regular end_sequence we normally
create is more than 4 bytes.
Tested by building cctools and ld64 from darwin9 on a darwin10 system and using
those. I checked that I was able to reproduce the bootstrap failure when
the the workaround was disabled.
llvm-svn: 120854
2010-12-03 23:36:59 +00:00
57ab708bdd
Try to resolve symbol differences early, and if successful create a plain
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data fragment. This reduces the time to assemble the test in 8711 from 60s to
54s.
llvm-svn: 120767
2010-12-03 00:55:40 +00:00
5eed2e63f8
It may not be an option to skip .debug_line if there are file reference in already emitted debug info. So, for now, emit dummy line table entry to make older linker and assemblers happy. This is not a new behavior, original AsmPrinter emitted similar line table entries.
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llvm-svn: 120760
2010-12-03 00:10:48 +00:00
8cabd938ed
Use set directive for StartMinusEndExpr.
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This is a fix for llvm-gcc-i386-darwin9 buildbot failure.
llvm-svn: 120742
2010-12-02 21:32:30 +00:00
556f203d64
Remove some #includes.
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llvm-svn: 119967
2010-11-22 11:53:17 +00:00
9900b4802e
Add a MCLineSectionOrder vector so that we produce the line tables in a
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deterministic order.
llvm-svn: 119795
2010-11-19 07:41:23 +00:00
b58867ccba
Change some methods in MCDwarf.cpp to be able to handle an arbitrary
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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
1d37f35eea
Fix the encoding of negative line deltas.
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llvm-svn: 118962
2010-11-13 01:06:27 +00:00
c4f4b2e878
Remove what looks like dead code in the production of debug lines.
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We only produce debug line information if we have seen a line directive, so
this code is dead. Also, if we want to be bug by bug compatible with
gas and sometimes produce "empty" .debug_line sections, this will
match the content produced by gas.
llvm-svn: 118914
2010-11-12 18:41:26 +00:00
5e874982f2
Add support for expressions in .sleb/.uleb directives.
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llvm-svn: 118023
2010-11-02 17:22:24 +00:00
Rafael Espindola