Jim Grosbach
e119da1146
Thumb unconditional branch binary encoding. rdar://8754994
...
llvm-svn: 121496
2010-12-10 18:21:33 +00:00
Rafael Espindola
0a017a6db2
Fixed version of 121434 with no new memory leaks.
...
llvm-svn: 121471
2010-12-10 07:39:47 +00:00
Rafael Espindola
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
Rafael Espindola
56eb741237
Initial support for the cfi directives. This is just enough to get
...
f:
.cfi_startproc
nop
.cfi_endproc
assembled (on ELF).
llvm-svn: 121434
2010-12-09 23:48:29 +00:00
Rafael Espindola
d66e65df03
Use const references.
...
llvm-svn: 121426
2010-12-09 23:08:35 +00:00
Owen Anderson
3ef19d9d48
Fix an issue in some Thumb fixups, where the effective PC address needs to be 4-byte aligned when calculating
...
the offset. Add a new fixup flag to represent this, and use it for the one fixups that I have a testcase for needing
this. It's quite likely that the other Thumb fixups will need this too, and to have their fixup encoding logic
adjusted accordingly.
llvm-svn: 121408
2010-12-09 20:27:52 +00:00
Jim Grosbach
68b27eb9d1
Rename CB/CBZ specific fixup accordingly.
...
llvm-svn: 121404
2010-12-09 19:50:12 +00:00
Devang Patel
3ebe3defe3
Add assert to catch an attempt to emit .byte 256
...
llvm-svn: 121402
2010-12-09 19:26:21 +00:00
Jason W Kim
c79c5f6e8c
ARM/MC/ELF TPsoft is now a proper pseudo inst.
...
Added test to check bl __aeabi_read_tp gets emitted properly for ELF/ASM
as well as ELF/OBJ (including fixup)
Also added support for ELF::R_ARM_TLS_IE32
llvm-svn: 121312
2010-12-08 23:14:44 +00:00
Bill Wendling
a7d6aa902a
Support the "target" encodings for the CB[N]Z instructions.
...
llvm-svn: 121308
2010-12-08 23:01:43 +00:00
Bill Wendling
8a6449c46e
Add support for loading from a constant pool.
...
llvm-svn: 121226
2010-12-08 01:57:09 +00:00
Jim Grosbach
87055ed6f4
Let target asm backends see assembler flags as they go by. Use that to handle
...
thumb vs. arm mode differences in WriteNopData().
llvm-svn: 121219
2010-12-08 01:16:55 +00:00
Rafael Espindola
6624f47272
Layout each section independently. With the testcase in PR8711:
...
before:
4 assembler - Number of assembler layout and relaxation steps
78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
271223 assembler - Number of evaluated fixups
330771677 assembler - Number of fragment layouts
5958 assembler - Number of relaxed instructions
2508361 mcexpr - Number of MCExpr evaluations
real 0m26.123s
user 0m25.694s
sys 0m0.388s
after:
4 assembler - Number of assembler layout and relaxation steps
78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
271223 assembler - Number of evaluated fixups
231507 assembler - Number of fragment layouts
5958 assembler - Number of relaxed instructions
2508361 mcexpr - Number of MCExpr evaluations
real 0m2.500s
user 0m2.113s
sys 0m0.273s
And yes, the outputs are identical :-)
llvm-svn: 121207
2010-12-07 23:32:26 +00:00
Rafael Espindola
e78d3b38de
Fix absolute recording of differences of symbols in two sections. Reduced from ctor_dtor_count-2.cpp.
...
llvm-svn: 121152
2010-12-07 17:12:32 +00:00
Rafael Espindola
bdbe5a712d
Fix relocations with weak definitions.
...
llvm-svn: 121114
2010-12-07 05:57:28 +00:00
Rafael Espindola
2eabaae459
Fix pcrel relocations that cross sections.
...
llvm-svn: 121107
2010-12-07 03:50:14 +00:00
Rafael Espindola
a2421ec705
Fix a crash reduced from gcc produced assembly.
...
llvm-svn: 121085
2010-12-07 01:09:54 +00:00
Rafael Espindola
93e3cf0ebd
Sorry for such a large commit. The summary is that only MachO cares about the
...
actuall addresses in a .o file, so it is better to let the MachO writer compute
it.
This is good for two reasons. First, areas that shouldn't care about
addresses now don't have access to it. Second, the layout of each section
is independent. I should use this in a subsequent commit to speed it up.
Most of the patch is just removing the section address computation. The two
interesting parts are the change on how we handle padding in the end
of sections and how MachO can get the address of a-b when a and b are in
different sections.
Since now the expression evaluation normally doesn't know the section address,
it will think that a-b needs relocation and let the MachO writer know. Once
it has computed the section addresses, it calls back the expression evaluation
with the section addresses to resolve these expressions.
The remaining problem is the handling of padding. Currently it will create
a special alignment fragment at the end. Since that fragment doesn't update
the alignment of the section, it needs the real address to be computed.
Since now the layout will not compute a-b with a and b in different sections,
the only effect that the special alignment fragment has is update the
address size of the section. This can also be done by the MachO writer.
llvm-svn: 121076
2010-12-07 00:27:36 +00:00
Jim Grosbach
9e1994698d
Add fixup for Thumb1 BL/BLX instructions.
...
llvm-svn: 121072
2010-12-06 23:57:07 +00:00
Rafael Espindola
1055f72b97
Use references to simplify the code a bit.
...
llvm-svn: 121050
2010-12-06 22:30:54 +00:00
Jason W Kim
495c2bb9a6
Refactor ELFObjectWriter.
...
+ ARM/X86/MBlaze now share a common RecordRelocation
+ ARM/X86/MBlaze arch specific routines are limited to GetRelocType()
llvm-svn: 121043
2010-12-06 21:57:34 +00:00
Rafael Espindola
e134b08daa
use getSymbolOffset.
...
llvm-svn: 121041
2010-12-06 21:51:55 +00:00
Rafael Espindola
408344017e
Another use of getSymbolOffset.
...
llvm-svn: 121034
2010-12-06 19:55:05 +00:00
Rafael Espindola
0f30fec0bd
Remove the instruction fragment to data fragment lowering since it was causing
...
freed data to be read. I will open a bug to track it being reenabled.
llvm-svn: 121028
2010-12-06 19:08:48 +00:00
Rafael Espindola
44bbe36de6
Second try at making direct object emission produce the same results
...
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
Rafael Espindola
dee3062373
Revert previous two patches while I try to find out how to make both
...
linux and darwin assemblers happy :-(
llvm-svn: 121004
2010-12-06 15:35:15 +00:00
Rafael Espindola
34a06a0802
Add an EmitAbsValue helper method and use it in cases where we want to be sure
...
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
Rafael Espindola
baf2f3b3eb
Remove the getAddress getter, initialize Ordinal in the constructor and use
...
that on the ELF writer to detect a section we created.
llvm-svn: 120981
2010-12-06 03:48:09 +00:00
Rafael Espindola
46e40188f7
Simplify a bit.
...
llvm-svn: 120980
2010-12-06 03:36:43 +00:00
Rafael Espindola
45790b82af
Use getSymbolOffset on the COFF writer.
...
llvm-svn: 120979
2010-12-06 03:24:04 +00:00
Rafael Espindola
ac60adb38d
Don't use PadSectionToAlignment on windows.
...
llvm-svn: 120978
2010-12-06 03:03:44 +00:00
Rafael Espindola
e7284c3671
Add a getSymbolOffset method and use it in the ELF writer.
...
llvm-svn: 120977
2010-12-06 02:57:26 +00:00
Rafael Espindola
8867390cf2
Once the layout is done we don't need to keep updating which fragments are
...
valid. Addresses will not change.
llvm-svn: 120921
2010-12-04 22:47:22 +00:00
Rafael Espindola
99e026dbca
Remember the contents of leb and dwarfline fragments when relaxing. This avoids
...
having to evaluate the expression again when writing.
llvm-svn: 120920
2010-12-04 21:58:52 +00:00
Rafael Espindola
1c8ac8f027
There are two reasons why we might want to use
...
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
Rafael Espindola
1048e75fb9
Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoid
...
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
Rafael Espindola
f8af778e1f
First step in fixing MC. Make it clear that we are avoiding a bug in the
...
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
Rafael Espindola
4c70eeaf33
Make EmitIntValue more efficient and more like what we do for leb128. The
...
difference is much smaller (about 0.3s) but significant.
llvm-svn: 120787
2010-12-03 02:54:21 +00:00
Rafael Espindola
675fbb2ad1
Do with uleb the same trick we now do with dwarf line/address advances. This
...
avoids creating leb128 fragments and speeds up the test in PR8711 to 33s.
llvm-svn: 120774
2010-12-03 01:19:49 +00:00
Rafael Espindola
57ab708bdd
Try to resolve symbol differences early, and if successful create a plain
...
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
Devang Patel
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.
...
llvm-svn: 120760
2010-12-03 00:10:48 +00:00
Devang Patel
8cabd938ed
Use set directive for StartMinusEndExpr.
...
This is a fix for llvm-gcc-i386-darwin9 buildbot failure.
llvm-svn: 120742
2010-12-02 21:32:30 +00:00
Rafael Espindola
bf792065a9
Add a fast path to EvaluateSymbolicAdd. This avoids computing symbol addresses
...
which then avoids running EnsureValid.
This cuts the assembly time of the testcase in PR8711 from 2:50 minutes to 1
minute.
llvm-svn: 120697
2010-12-02 07:53:12 +00:00
Rafael Espindola
9065bfc692
Move EmitValueToOffset to the ObjectStreamer.
...
llvm-svn: 120691
2010-12-02 05:59:38 +00:00
Rafael Espindola
3fa6fc1450
Add EmitInstToFragment to the generic object streamer.
...
llvm-svn: 120690
2010-12-02 05:44:06 +00:00
Rafael Espindola
60ebca9aaf
The sections that the ELF object writer has to create are very simple and
...
contain only data. Handle them specially instead of using AddSectionToTheEnd.
This moves a hack from the generic assembler to the elf writer. It is also
a bit faster and should make other improvements easier.
llvm-svn: 120683
2010-12-02 03:09:06 +00:00
Devang Patel
87b9114f49
If tehre are not any line entry then do not try to emit .debug_line section.
...
llvm-svn: 120637
2010-12-02 01:17:51 +00:00
Jim Grosbach
ce2bd8d05f
Add support for binary encoding of ARM 'adr' instructions referencing constant
...
pool entries (LEApcrel pseudo). Ongoing saga of rdar://8542291.
llvm-svn: 120635
2010-12-02 00:28:45 +00:00
Rafael Espindola
50fe5c5138
Remove unused argument.
...
llvm-svn: 120621
2010-12-01 22:48:11 +00:00
Rafael Espindola
5fe5f45352
Rename temporary symbols if they conflict with artificial symbols created
...
by the assembler. This was blocking parsing any large .s produced by clang for
example.
Fixes PR8596.
llvm-svn: 120603
2010-12-01 20:46:11 +00:00
Owen Anderson
943fb60b1f
Add correct encodings for STRD and LDRD, including fixup support. Additionally, update these to unified syntax.
...
llvm-svn: 120589
2010-12-01 19:18:46 +00:00
Jim Grosbach
5695098c4c
Fix a mised reloc rename spot.
...
llvm-svn: 120585
2010-12-01 19:02:26 +00:00
Jason W Kim
29805961d8
ARM/MC/ELF relocation "hello world" for movw/movt.
...
Lifted adjustFixupValue() from Darwin for sharing w ELF.
Test added
TODO:
refactor ELFObjectWriter::RecordRelocation more.
Possibly share more code with Darwin?
Lots more relocations...
llvm-svn: 120534
2010-12-01 02:40:06 +00:00
Michael J. Spencer
447762da85
Merge System into Support.
...
llvm-svn: 120298
2010-11-29 18:16:10 +00:00
Rafael Espindola
e5e1f9ad0f
Make EmitIntValue non virtual.
...
llvm-svn: 120271
2010-11-28 23:22:44 +00:00
Rafael Espindola
0710e3771f
Forgot the MCPureStreamer::EmitValue in the previous commit.
...
llvm-svn: 120270
2010-11-28 23:13:47 +00:00
Rafael Espindola
a084fd6e9d
Move EmitValue to MCObjectStreamer.
...
llvm-svn: 120269
2010-11-28 23:08:47 +00:00
Rafael Espindola
e5b7415b21
Fixed verson of r120245.
...
Factor some duplicated code into MCObjectStreamer::EmitLabel.
llvm-svn: 120248
2010-11-28 17:18:55 +00:00
Rafael Espindola
1679580cc9
Revert previous patch while I debug the darwin bootstrap failure.
...
llvm-svn: 120246
2010-11-28 16:22:59 +00:00
Rafael Espindola
d4b3feb3f7
Factor some duplicated code into MCObjectStreamer::EmitLabel.
...
llvm-svn: 120245
2010-11-28 15:54:36 +00:00
Rafael Espindola
b746531c2c
Avoid code duplication in the many unsupported EmitGPRel32Value implementations.
...
llvm-svn: 120243
2010-11-28 15:09:24 +00:00
Rafael Espindola
8a3a7923eb
Define generic 1, 2 and 4 byte pc relative relocations. They are common
...
and at least the 4 byte one will be needed to implement the .cfi_* directives.
llvm-svn: 120240
2010-11-28 14:17:56 +00:00
Daniel Dunbar
0ac77d526d
macho-dump: Add support for dumping relocation entries.
...
llvm-svn: 120216
2010-11-27 13:39:48 +00:00
Daniel Dunbar
768a5e8004
Fix a comment.
...
llvm-svn: 120199
2010-11-27 07:39:37 +00:00
Daniel Dunbar
4b128a5d4f
Reduce nesting.
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llvm-svn: 120189
2010-11-27 05:18:48 +00:00
Daniel Dunbar
eab6e401fe
MC/Mach-O: Migrate more constants into MachOFormat.h.
...
llvm-svn: 120188
2010-11-27 04:59:14 +00:00
Daniel Dunbar
2263ca4834
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
bf4a4e4ad9
Remove the unused TheTarget member.
...
llvm-svn: 120168
2010-11-26 04:24:21 +00:00
Michael J. Spencer
f13f442b1a
Fix Whitespace.
...
llvm-svn: 120166
2010-11-26 04:16:08 +00:00
Rafael Espindola
f8e127eaf6
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
9f75d5df0b
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
708ac4d6ad
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
e98d483b71
Fix and add tests for all cases in x86 and x86_64 where gnu as implicitly
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sets the type of a symbol to STT_TLS.
llvm-svn: 120100
2010-11-24 18:51:21 +00:00
Rafael Espindola
4e70ac7b68
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
5c1d4e3b1e
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
6e13aa1d3b
Reuse data fragments while lowering. Patch by David Meyer.
...
llvm-svn: 119999
2010-11-23 05:49:35 +00:00
Jason W Kim
767a1e9adc
Fixed some style issues (no _, no spc after !)
...
llvm-svn: 119986
2010-11-22 22:05:16 +00:00
Jason W Kim
16b75262c4
Make the <ARCH>ELFObjectWriter statics private
...
llvm-svn: 119982
2010-11-22 18:57:00 +00:00
Jason W Kim
84ffdd5cf1
Fix misplaced statics.
...
llvm-svn: 119981
2010-11-22 18:47:05 +00:00
Jason W Kim
a262546df7
Kill trailing whitespace
...
llvm-svn: 119979
2010-11-22 18:42:07 +00:00
Jason W Kim
7c7d0ef287
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
3c227b0b89
Add basic CFI methods to the streamer interface.
...
llvm-svn: 119972
2010-11-22 14:27:24 +00:00
Rafael Espindola
556f203d64
Remove some #includes.
...
llvm-svn: 119967
2010-11-22 11:53:17 +00:00
Wesley Peck
7699d6cfe9
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
26cb15a549
Handle PCRel relocations with absolute values. Fixes PR8656.
...
llvm-svn: 119917
2010-11-21 00:48:25 +00:00
Kevin Enderby
8be14414f6
Added support for the Mach-O .symbol_resolver directive. rdar://8673046
...
llvm-svn: 119816
2010-11-19 18:39:33 +00:00
Rafael Espindola
9900b4802e
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
0b4c9aa9a9
Add an assert.
...
llvm-svn: 119788
2010-11-19 04:55:36 +00:00
Rafael Espindola
92ca933f6e
Fix llvm-gcc boostrap on OS X by avoiding printing sleb and uleb when
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possible.
llvm-svn: 119785
2010-11-19 04:10:13 +00:00
Rafael Espindola
b58867ccba
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
67c6ab8865
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
7a2cd8b540
make isVirtualSection a virtual method on MCSection. Chris' suggestion.
...
llvm-svn: 119547
2010-11-17 20:03:54 +00:00
Jim Grosbach
d82684c7fc
Fix typo.
...
llvm-svn: 119542
2010-11-17 19:30:11 +00:00
Rafael Espindola
b67912d5cd
Add support for .int.
...
llvm-svn: 119512
2010-11-17 16:24:40 +00:00
Rafael Espindola
5c996894bd
Add support for .2byte, .4byte and .8byte.
...
Fixes PR8631.
llvm-svn: 119511
2010-11-17 16:15:42 +00:00
Daniel Dunbar
95d37be1a9
MC-JIT: Stub out "pure" streamer.
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- No immediate use, but maybe someone feels like hacking on it.
llvm-svn: 119510
2010-11-17 16:06:47 +00:00
Rafael Espindola
c653a895c8
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
3bbea57a6e
Parse and ignore some .cfi_* directives.
...
llvm-svn: 119362
2010-11-16 18:34:07 +00:00
Rafael Espindola
7d19efd6ff
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
202d91e433
Fix compiler warnigns.
...
llvm-svn: 119175
2010-11-15 19:20:50 +00:00
Rafael Espindola
8c3039b67b
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
96f4c01cb3
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
46c79ef113
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
9e7d8c0313
correct the fixup comment printer to work on big endian platforms.
...
llvm-svn: 119122
2010-11-15 05:56:19 +00:00
Chris Lattner
edb9d84dcc
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
240028d11d
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
94f0c14cb0
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
a7d0bed336
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
b05ef7377a
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
7d0ba3464e
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
0e3decfcf7
Simplify getSymbolIndexInSymbolTable by setting the actual index of
...
the symbols.
llvm-svn: 119022
2010-11-14 03:12:24 +00:00
Rafael Espindola
eba9022652
Fix warning.
...
llvm-svn: 119021
2010-11-14 01:34:31 +00:00
Daniel Dunbar
fe0c28f4db
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
2d006b1ade
Fix warning and add support for printing gnu_unique_object.
...
llvm-svn: 118981
2010-11-13 04:55:06 +00:00
Rafael Espindola
4bcf94c75a
Parse and record the gnu_unique_object type.
...
llvm-svn: 118980
2010-11-13 04:51:02 +00:00
Rafael Espindola
f01b622902
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
Rafael Espindola
1d37f35eea
Fix the encoding of negative line deltas.
...
llvm-svn: 118962
2010-11-13 01:06:27 +00:00
Benjamin Kramer
dcc7732f88
MCELF: Copy the symbol name only if we're going to modify it.
...
llvm-svn: 118920
2010-11-12 19:26:04 +00:00
Rafael Espindola
c4f4b2e878
Remove what looks like dead code in the production of debug lines.
...
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
Rafael Espindola
de990b270d
gnu as support both % and @ before types, do the same.
...
llvm-svn: 118893
2010-11-12 15:47:08 +00:00
Jim Grosbach
ba321cb120
Trailing whitespace.
...
llvm-svn: 118831
2010-11-11 20:16:23 +00:00
Rafael Espindola
84d031870c
Mark labels declared in tls sections as STT_TLS. This matches the behavior of
...
gas.
llvm-svn: 118818
2010-11-11 19:04:55 +00:00
Rafael Espindola
a3e9a2298d
Initial comdat implementation.
...
llvm-svn: 118805
2010-11-11 18:13:52 +00:00
Rafael Espindola
fb6540c112
Make AliasedSymbol able to handle MCTargetExpr. They can get here if
...
a weakref is used with a VariantKind.
llvm-svn: 118798
2010-11-11 17:24:43 +00:00
Rafael Espindola
fa7b55754c
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.
llvm-svn: 118793
2010-11-11 16:48:11 +00:00
Rafael Espindola
19fa38000a
Remove some explicit arguments to getELFSection. This is
...
a leftover from the removal of isExplicit.
llvm-svn: 118774
2010-11-11 03:40:25 +00:00
Rafael Espindola
5a8d781caa
Factor some code into WriteSection.
...
llvm-svn: 118733
2010-11-10 23:36:59 +00:00
Rafael Espindola
eb97f59753
Update the section index map after we add the medatada sections.
...
llvm-svn: 118728
2010-11-10 22:34:07 +00:00
Rafael Espindola
1801410fa8
Use SectionIndexMap in WriteSymbolTable to make it a little less brittle.
...
llvm-svn: 118725
2010-11-10 22:16:43 +00:00
Rafael Espindola
d634003ebd
Factor some code into ComputeIndexMap.
...
llvm-svn: 118722
2010-11-10 21:51:05 +00:00
Rafael Espindola
51d68339a2
Change the String<size> methods to take a fragment instead of a buffer.
...
llvm-svn: 118709
2010-11-10 20:02:59 +00:00
Rafael Espindola
36ef57d2eb
Use MCSectionELF in places we know we have an ELF section.
...
llvm-svn: 118699
2010-11-10 19:05:07 +00:00
Jim Grosbach
f23b2d9d8d
Update ARMConstantPoolValue to not use a modifier string. Use an explicit
...
VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://8647623
llvm-svn: 118671
2010-11-10 03:26:07 +00:00
Rafael Espindola
9bb44a5ce8
Fixed version of 118639 with an extra assert to catch similar problems
...
earlier. Implicit bool -> int conversions are evil!
llvm-svn: 118651
2010-11-09 23:42:07 +00:00
Rafael Espindola
33048f069f
Revert previous patch. Missed a case.
...
llvm-svn: 118645
2010-11-09 22:54:38 +00:00
Rafael Espindola
4bdd2724e3
Remove IsExplicit. It was always false.
...
llvm-svn: 118639
2010-11-09 22:37:44 +00:00
Daniel Dunbar
8a3c3f2ad3
Fix typo.
...
llvm-svn: 118421
2010-11-08 17:53:02 +00:00
Rafael Espindola
9d17a3194e
Set default flags for .rodata.
...
llvm-svn: 118395
2010-11-08 02:47:59 +00:00
Rafael Espindola
20b11eaa01
Speed up AddSectionToTheEnd. It was walking all fragments in all sections.
...
This is really slow with we have 1000s of sections each with a corresponding
relocation section. Also, it is only used by the ELF writer to add
basic data, so there is no need to force a new layout pass.
Should fix PR8563.
llvm-svn: 118377
2010-11-07 15:03:27 +00:00
Rafael Espindola
5665a93bc5
Relax dwarf line fragments. This fixes a crash in the included testcase.
...
llvm-svn: 118365
2010-11-07 02:07:12 +00:00
Jim Grosbach
cbdf7efe1c
Add '.code 32' assembler directive to MC streamers.
...
llvm-svn: 118309
2010-11-05 22:40:09 +00:00
Jim Grosbach
5a2c68d308
MC'ize the '.code 16' and '.thumb_func' ARM directives.
...
llvm-svn: 118301
2010-11-05 22:08:08 +00:00
Benjamin Kramer
80bb80f5fc
Put class into an anonymous namespace.
...
llvm-svn: 118294
2010-11-05 19:56:38 +00:00
Jim Grosbach
46c2acbcb4
Allow targets to specify the MachO CPUType/CPUSubtype information.
...
llvm-svn: 118288
2010-11-05 18:48:58 +00:00
Jim Grosbach
c75bb744e1
syntaxunified directive is a no-op for MachO writing.
...
llvm-svn: 118287
2010-11-05 18:47:32 +00:00
Rafael Espindola
38d0756b88
Add 118023 back, but with proper spelling for .uleb128/.sleb128.
...
llvm-svn: 118254
2010-11-04 18:17:08 +00:00
Rafael Espindola
f8343f87e7
Do relaxations with FT_Org fragments. Fixes the FIXME:
...
// FIXME: We should compute this sooner, we don't want to recurse here, and
// we would like to be more functional.
In MCAssembler::ComputeFragmentSize.
llvm-svn: 118080
2010-11-02 21:38:23 +00:00
Rafael Espindola
5e874982f2
Add support for expressions in .sleb/.uleb directives.
...
llvm-svn: 118023
2010-11-02 17:22:24 +00:00
Rafael Espindola
13ddd6d410
Write the line info to .debug_line.
...
llvm-svn: 117930
2010-11-01 17:07:14 +00:00
Rafael Espindola
72b5488680
Move EmitInstruction to MCObjectStreamer so that ELF and MachO can share it.
...
llvm-svn: 117925
2010-11-01 16:27:31 +00:00
Rafael Espindola
144fb8af58
Add support for .value.
...
llvm-svn: 117922
2010-11-01 15:29:07 +00:00
Rafael Espindola
1614597873
Implement .weakref.
...
llvm-svn: 117911
2010-11-01 14:28:48 +00:00
Rafael Espindola
3fe87a1eed
Add support for files with more than 65280 sections. No testcase since
...
it would be a bit too big :-)
llvm-svn: 117849
2010-10-31 00:16:26 +00:00
Rafael Espindola
45834a0065
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.
llvm-svn: 117735
2010-10-29 23:09:31 +00:00
Rafael Espindola
8aefb66376
Improvements to .section parsing:
...
* If we have a M or a G, reject sections without the type
* Only parse the flag specific arguments if we have M or G
* Parse the corresponding arguments for M and G
We ignore the G arguments and flag for now.
llvm-svn: 117608
2010-10-28 21:33:33 +00:00
Rafael Espindola
63760ba38e
Add support for the .string directive.
...
llvm-svn: 117592
2010-10-28 20:02:27 +00:00
Rafael Espindola
3c5a54e4b9
Defined weak symbols should have non-zero value.
...
llvm-svn: 117585
2010-10-28 19:39:57 +00:00
Rafael Espindola
29f70afbae
Fix relocations with renamed symbols.
...
llvm-svn: 117575
2010-10-28 19:08:03 +00:00
Rafael Espindola
6cd76e63f8
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.
llvm-svn: 117570
2010-10-28 18:33:03 +00:00
Roman Divacky
41e6cebb40
Use the IDVal directly as there's no need to convert to std::string.
...
Pointed out by Chris!
llvm-svn: 117557
2010-10-28 16:57:58 +00:00
Roman Divacky
fdac6365ab
Implement .equ directive as a synonym to .set.
...
llvm-svn: 117553
2010-10-28 16:22:58 +00:00
Rafael Espindola
936ba3af28
Implement R_X86_64_DTPOFF32.
...
llvm-svn: 117548
2010-10-28 15:11:03 +00:00
Rafael Espindola
2dbec3f762
Implement TLSLD.
...
llvm-svn: 117547
2010-10-28 15:02:40 +00:00
Rafael Espindola
e8f08be11c
Implement DTPOFF.
...
llvm-svn: 117546
2010-10-28 14:48:59 +00:00
Rafael Espindola
6f23eb380d
Implement TLSLDM.
...
llvm-svn: 117544
2010-10-28 14:37:09 +00:00
Rafael Espindola
b3b49bbc39
Implement VK_GOTNTPOFF and switch RelocNeedsGOT to use VariantKind.
...
llvm-svn: 117543
2010-10-28 14:22:44 +00:00
Rafael Espindola
f8537165bd
Add support for R_386_TLS_GD, R_386_TLS_LE_32, R_386_TLS_IE and R_386_TLS_LE.
...
llvm-svn: 117494
2010-10-27 21:23:52 +00:00
Rafael Espindola
24c8b04d5f
Implement R_X86_64_GOTTPOFF, R_X86_64_TLSGD and R_X86_64_TPOFF32.
...
llvm-svn: 117481
2010-10-27 20:28:07 +00:00
Benjamin Kramer
14807270be
Replace pointer arithmetic with StringRef::substr.
...
llvm-svn: 117477
2010-10-27 19:53:52 +00:00
Rafael Espindola
095fa9e5cc
Set default type and flags for .init and .fini.
...
llvm-svn: 117471
2010-10-27 18:45:20 +00:00
Rafael Espindola
26496e6835
Produce an error for an invalid use of .symver.
...
llvm-svn: 117462
2010-10-27 17:56:18 +00:00
Rafael Espindola
cc1b168ef6
Symbols defined as the difference of other two end up in the ABS section.
...
llvm-svn: 117451
2010-10-27 16:04:30 +00:00
Rafael Espindola
eb0c2c170d
Add support for the .symver directive. This is really ugly, but most of it is
...
contained in the ELF object writer.
llvm-svn: 117448
2010-10-27 15:18:17 +00:00
Rafael Espindola
a5efd6a27c
Move more logic to isInSymtab and simplify.
...
llvm-svn: 117447
2010-10-27 14:44:52 +00:00
Rafael Espindola
c9fb35e73b
Add support for .ident.
...
llvm-svn: 117389
2010-10-26 19:35:47 +00:00
Daniel Dunbar
b3a48f3459
MC/AsmParser: Fix relative precedence of {+,-} and comparison ops.
...
llvm-svn: 117299
2010-10-25 20:18:56 +00:00
Daniel Dunbar
7484d2cbec
MC/AsmLexer: Fix bug in source location for Slash token.
...
llvm-svn: 117298
2010-10-25 20:18:53 +00:00
Rafael Espindola
0ed1543d4e
Add support for emitting ARM file attributes.
...
llvm-svn: 117275
2010-10-25 17:50:35 +00:00
Rafael Espindola
800fd3533c
Add X86::reloc_global_offset_table and use it to have a single place where
...
we check for _GLOBAL_OFFSET_TABLE_.
llvm-svn: 117241
2010-10-24 17:35:42 +00:00
Benjamin Kramer
9192e7ab12
Make some symbols static, move classes into anonymous namespaces.
...
llvm-svn: 117111
2010-10-22 17:35:07 +00:00
Wesley Peck
1851090515
Making the e_machine configurable by the target backend in ELFObjectWriter.
...
llvm-svn: 117099
2010-10-22 15:52:49 +00:00
Jim Grosbach
90600d3329
Trailing whitespace.
...
llvm-svn: 117073
2010-10-21 22:04:05 +00:00
Michael J. Spencer
31041a9967
Fix Warnings.
...
llvm-svn: 117062
2010-10-21 20:49:38 +00:00
Rafael Espindola
8ba86f801d
Do not recurse into symbol refs that have a variant kind. This prevents us
...
from losing the variant when producing a relocation on an alias.
llvm-svn: 117037
2010-10-21 18:00:20 +00:00
Chandler Carruth
1898262a33
Remove remaining uses of ATTRIBUTE_UNUSED on variables, and delete three
...
#includes in the process.
llvm-svn: 116919
2010-10-20 08:27:02 +00:00
Rafael Espindola
ee8d15157a
Small cleanups and fixes in preparation for fixing _GLOBAL_OFFSET_TABLE_.
...
llvm-svn: 116848
2010-10-19 19:31:37 +00:00
Bill Wendling
5391eb61fb
Fix spelling.
...
llvm-svn: 116804
2010-10-19 10:18:23 +00:00
Chandler Carruth
a960cb7181
Move the definition of this to the source file to anchor the vtable.
...
llvm-svn: 116779
2010-10-19 00:37:30 +00:00
Rafael Espindola
fba9f74932
Implement R_386_GOT32.
...
llvm-svn: 116744
2010-10-18 20:47:21 +00:00
Rafael Espindola
0a5314fdb3
Relocate with .bss instead of using the symbol. Matches gas behavior.
...
llvm-svn: 116741
2010-10-18 20:25:33 +00:00
Rafael Espindola
3604d4441a
Reenable assert.
...
llvm-svn: 116738
2010-10-18 19:33:01 +00:00
Rafael Espindola
e3dc9e2ea1
Produce ELF::R_386_GOTPC relocations.
...
llvm-svn: 116728
2010-10-18 18:36:12 +00:00
Rafael Espindola
257374bb0f
Make the bots happy.
...
llvm-svn: 116719
2010-10-18 18:03:28 +00:00
Rafael Espindola
3521f8467d
Produce a R_386_PLT32 when needed. Moved the default cases of switches to the
...
start for consistency.
llvm-svn: 116715
2010-10-18 16:58:03 +00:00
Rafael Espindola
4464e0858f
Handle GOTOFF correctly on i386.
...
llvm-svn: 116711
2010-10-18 16:38:04 +00:00
Benjamin Kramer
77414757f6
Fix a typo and silence unused variable warnings in -Asserts build.
...
llvm-svn: 116685
2010-10-17 07:38:40 +00:00
Rafael Espindola
4262a22225
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.
llvm-svn: 116675
2010-10-16 18:23:53 +00:00
Michael J. Spencer
17990d5690
MC-COFF: Add support for default-null weak externals.
...
llvm-svn: 116666
2010-10-16 08:25:57 +00:00
Daniel Dunbar
4d99878a37
MC/AsmParser: Report .stabs directive as unsupported.
...
llvm-svn: 116659
2010-10-16 04:56:42 +00:00
Rafael Espindola
84378f0f53
Refactor alias handling to AliasedSymbol.
...
llvm-svn: 116600
2010-10-15 18:25:33 +00:00
Rafael Espindola
fbcf0db7ee
Refactor code a bit and avoid creating unnecessary entries in the string
...
map.
llvm-svn: 116579
2010-10-15 15:39:06 +00:00
Rafael Espindola
bee6e9f8e0
Remove some code duplication.
...
llvm-svn: 116484
2010-10-14 16:34:44 +00:00
Michael J. Spencer
a6a984bd96
MC-COFF: Fix .bss section size. Fixes PR8335. Patch by NAKAMUTA Takumi!
...
llvm-svn: 116155
2010-10-09 16:04:45 +00:00
Michael J. Spencer
86bbd71088
MC-COFF: Implement InitSections. Fixes PR8335.
...
llvm-svn: 116151
2010-10-09 15:44:27 +00:00
Michael J. Spencer
c8dbdfd4ba
MC-COFF: Add COFFAsmParser. Completes PR8343.
...
llvm-svn: 116150
2010-10-09 11:01:07 +00:00
Michael J. Spencer
530ce85b3e
Fix Whitespace.
...
llvm-svn: 116149
2010-10-09 11:00:50 +00:00
Michael J. Spencer
be52c62a6d
MC-COFF: Assert on non-coff sections.
...
llvm-svn: 116148
2010-10-09 11:00:37 +00:00
Michael J. Spencer
3d89823102
MC: Move ParseDirectiveELFType into ELFAsmParser. COFF uses .type for something else.
...
llvm-svn: 116142
2010-10-09 03:47:55 +00:00
Michael J. Spencer
aaf4643a31
MC-COFF: Handle relaxation in COFF better. Fixes PR8321.
...
llvm-svn: 116013
2010-10-07 23:55:40 +00:00
NAKAMURA Takumi
87002b592e
Minor cosmetic change: fix DOSish \r\n.
...
llvm-svn: 115910
2010-10-07 07:21:04 +00:00
Michael J. Spencer
1666b61357
MC-COFF: Fix symbol aliases. Fixes PR8251.
...
llvm-svn: 115909
2010-10-07 06:29:33 +00:00
Rafael Espindola
883936ce0b
Another case of 256 sections not being enough :-)
...
llvm-svn: 115858
2010-10-06 22:28:19 +00:00
Rafael Espindola
5f2d6a5cd9
Get binding and visibility info from the the alias, but Type from the symbol
...
being aliased.
llvm-svn: 115836
2010-10-06 21:02:29 +00:00
Michael J. Spencer
e535b01a74
MC: Add missing forward in MCLoggingStreamer.
...
llvm-svn: 115830
2010-10-06 20:36:47 +00:00
Rafael Espindola
d444577382
If a symbol is global, reloc against it even if it is in a mergeable section.
...
llvm-svn: 115817
2010-10-06 19:27:21 +00:00
Rafael Espindola
83b2a3337f
Make sure weak symbols are listed after the local ones.
...
llvm-svn: 115795
2010-10-06 16:47:31 +00:00
Rafael Espindola
8f3d2c9058
Correctly handle GOTPCREL relocations.
...
llvm-svn: 115793
2010-10-06 16:23:36 +00:00
Rafael Espindola
d7565c3a06
Use a relocation against the symbol if it is a PLT and the symbol is in another
...
section. Common because of linkonce sections.
llvm-svn: 115718
2010-10-05 23:57:26 +00:00
Rafael Espindola
0ad137e98e
Implement more alias cases.
...
llvm-svn: 115699
2010-10-05 22:26:43 +00:00
Rafael Espindola
3844da781f
256 sections should be enough for anyone...
...
llvm-svn: 115687
2010-10-05 21:20:07 +00:00
Rafael Espindola
c58a37ea51
Don't crash in a strange .size directive.
...
llvm-svn: 115684
2010-10-05 21:02:45 +00:00
Michael J. Spencer
a65d17a5ca
Fix Punctuation.
...
llvm-svn: 115657
2010-10-05 19:48:12 +00:00
Michael J. Spencer
a3b34ed2df
MC-COFF: Fix (PR8278) temporary symbol relocations.
...
llvm-svn: 115656
2010-10-05 19:48:03 +00:00
Rafael Espindola
b91bac6c96
Add support for a fill value in the .zero directive.
...
llvm-svn: 115655
2010-10-05 19:42:57 +00:00
Rafael Espindola
b1d0789357
Implement a simple alias case and refactor the code a bit so that the
...
isInSymtab and isLocal logic in the two loops don't get easily out of sync.
llvm-svn: 115643
2010-10-05 18:01:23 +00:00
Rafael Espindola
d03e81dba8
Produce a undefined reference to _GLOBAL_OFFSET_TABLE_ when needed.
...
llvm-svn: 115623
2010-10-05 15:48:37 +00:00
Rafael Espindola
bce26a1ee0
On ELF we need to know which symbols are used in relocations to decide if
...
they should be in the symbol table or not. Instead of "guessing", just compute
the symbol table after the relocations are known.
llvm-svn: 115619
2010-10-05 15:11:03 +00:00
Kevin Enderby
a68d004d88
Incorporate suggestions by Daniel Dunbar after his review. Thanks Daniel!
...
1) Changed ValidateDwarfFileNumber() to isValidDwarfFileNumber() to be better
named. Since it is just a predicate and isn't actually changing any state.
2) Added a missing return in the comments for setCurrentDwarfLoc() in
include/llvm/MC/MCContext.h for fix formatting.
3) Changed clearDwarfLocSeen() to ClearDwarfLocSeen() since it does change
state.
4) Simplified the last test in isValidDwarfFileNumber() to just a one line
boolean test of MCDwarfFiles[FileNumber] != 0 for the final return statement.
llvm-svn: 115551
2010-10-04 20:17:24 +00:00
Rafael Espindola
fd1fff8b19
Implement ELF::R_X86_64_GOTPCREL.
...
llvm-svn: 115547
2010-10-04 19:51:39 +00:00
Rafael Espindola
308363336b
Move isFixupKindX86PCRel.
...
llvm-svn: 115545
2010-10-04 19:46:28 +00:00
Rafael Espindola
baadbd554a
Produce a R_X86_64_PLT32 when needed.
...
llvm-svn: 115541
2010-10-04 19:04:13 +00:00
Rafael Espindola
b2c4ca6433
Produce a R_X86_64_GOT32 when needed.
...
llvm-svn: 115537
2010-10-04 18:44:25 +00:00
Jan Wen Voung
87f77b5f9a
Add hook in MCSection to decide when to use "optimized nops", for each
...
section kind. Previously, optimized nops were only used for MachO.
Also added tests for ELF and COFF.
llvm-svn: 115523
2010-10-04 17:32:41 +00:00
Rafael Espindola
da0e3d07b2
Include the section address in the computation of the relocation.
...
llvm-svn: 115509
2010-10-04 15:59:01 +00:00
Rafael Espindola
7c48b06930
Correctly compute the relocation when it is not in the first fragment.
...
llvm-svn: 115506
2010-10-04 15:28:43 +00:00
Rafael Espindola
f70b4e0c2e
Implement a very basic PIC case.
...
llvm-svn: 115454
2010-10-03 00:46:57 +00:00
Kevin Enderby
a8d176866d
This adds a Darwin x86_64 relocation encoding for a subtraction expression
...
where both symbols are "local", that is non-external symbols, and there is
no "base" for the symbols used in the expression, that is the section has
no non-temporary symbols. This case looks like this:
% cat local_reloc_A-B.s
.long 0
LB: .long 1
.long LA - LB - 4
.long 2
LA: .long 3
which llvm-mc will not encode without this patch, generates a "unsupported
local relocations in difference" error, but the Darwin assembler will
encode with relocation entries like this:
% otool -rv a.out l.out
a.out:
Relocation information (__TEXT,__text) 2 entries
address pcrel length extern type scattered symbolnum/value
00000008 False long False SUB False 1 (__TEXT,__text)
00000008 False long False UNSIGND False 1 (__TEXT,__text)
which is very similar to what is encoded when the symbols don't have the
leading 'L' and they are not temporary symbols. Which llvm-mc and the
Darwin assembler will encoded like this:
Relocation information (__TEXT,__text) 2 entries
address pcrel length extern type scattered symbolnum/value
00000008 False long True SUB False B
00000008 False long True UNSIGND False A
This is the missing relocation encoding needed to allow the Mach-O x86
Dwarf file and line table to be emitted. So this patch also removes the
TODO from the if() statement in MCMachOStreamer::Finish() that didn't
call MCDwarfFileTable::Emit() for 64-bit targets.
llvm-svn: 115389
2010-10-02 00:13:41 +00:00
Rafael Espindola
f987d5ea1c
Factor some logic into ShouldRelocOnSymbol. This simplifies the code and
...
fixes some cases where we were producing relocations with at symbol that
should use a section instead.
llvm-svn: 115194
2010-09-30 20:18:35 +00:00
Kevin Enderby
e46564a4a8
This is the last major patch to implement support for the .loc directive
...
and output the dwarf line number tables. This contains the code to emit and
encode the dwarf line tables from the previously gathered information in the
MCLineSection objects. This contains all the details to encode the line and
address deltas into the dwarf line table.
To do this an MCDwarfLineAddrFragment has been added.
Also this moves the interface code out of Mach-O streamer into
MCDwarf so it should be useable by other object file formats.
There is now one call to be made from an MCObjectStreamer
EmitInstruction() method:
MCLineEntry::Make(this, getCurrentSection());
to create a line entry after each instruction is assembled.
And one call call to be made from an MCObjectStreamer Finish() method:
MCDwarfFileTable::Emit(this, DwarfLineSection);
when getContext().hasDwarfFiles() is true and is passed a object file specific
MCSection where to emit the dwarf file and the line tables.
This appears to now be correct for 32-bit targets, at least x86. But the
relocation entries for 64-bit Darwin needs some further work which is next
up to work on. So for now the 64-bit Mach-O target does not output the
dwarf file and line tables.
llvm-svn: 115157
2010-09-30 16:52:03 +00:00
Kevin Enderby
dce906c77f
Changes EvaluateAsAbsolute() to return the "current value" of the expression
...
if we are given a Layout object, even in cases when the value is not fixed.
This will be needed by the final patch for the dwarf .loc support to size a
new MCDwarf fragment needed to build and emit dwarf line number tables.
llvm-svn: 115155
2010-09-30 16:42:21 +00:00
Chandler Carruth
f44d350614
Silence a GCC warning about not handling all flags in this switch, we
...
specifically assert on unexpected flags.
llvm-svn: 115143
2010-09-30 10:59:51 +00:00
Jan Wen Voung
efbdbe5565
Move logic of determining ELF entsize from the .s printer to initialization
...
time. That way, the EntrySize field is initialized for other code paths,
namely, the .ll -> .o code path.
llvm-svn: 115141
2010-09-30 05:59:22 +00:00
Rafael Espindola
70d6e0e0ff
Correctly produce R_X86_64_32 or R_X86_64_32S.
...
With this patch in
movq $foo, foo(%rip)
foo:
.long foo
We produce a R_X86_64_32S for the first relocation and R_X86_64_32 for the
second one.
llvm-svn: 115134
2010-09-30 03:11:42 +00:00
Jason W Kim
645f6c2bef
Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile()
...
Small test for sanity check of resulting ARM .s file.
Tested against -r115129.
llvm-svn: 115133
2010-09-30 02:45:56 +00:00
Jan Wen Voung
b96b2d8e4d
Have ELFAsmParser.cpp use the already parsed "Size" (entry size) when
...
constructing a section. Test for a few cases also included.
llvm-svn: 115132
2010-09-30 02:41:46 +00:00
Rafael Espindola
2ebaee9c75
Make it possible for the MCObjectWriter to decide if a given fixup is fully
...
resolved or not. Different object files have different restrictions and
different native assemblers have different idiosyncrasies we want to emulate
for now.
Move the existing MachO logic to the new place and implement an ELF one that
gets fixups to globals right.
llvm-svn: 115131
2010-09-30 02:22:20 +00:00
Jan Wen Voung
c768287968
Test commit - Deleted some whitespace at the end of a line.
...
llvm-svn: 115122
2010-09-30 01:09:20 +00:00
Rafael Espindola
53f0bf194a
Move "local commons" to the end of .bss to match the gnu as behavior.
...
llvm-svn: 115037
2010-09-29 14:52:01 +00:00
Michael J. Spencer
86a6222469
MC-COFF: Fix symbol storage class for globals
...
llvm-svn: 115020
2010-09-29 03:13:41 +00:00
Chris Lattner
b44fd24fc1
change the protocol TargetAsmPArser::MatchInstruction method to take an
...
MCStreamer to emit into instead of an MCInst to fill in. This allows the
matcher extra flexibility and is more convenient.
llvm-svn: 115014
2010-09-29 01:42:58 +00:00
Rafael Espindola
01d20a76fe
On elf, undefined symbols can start with .L.
...
llvm-svn: 114958
2010-09-28 16:19:11 +00:00
Rafael Espindola
96bfb50c03
Write relocations in the end of the file. This matches what gas does and
...
makes files easier to diff.
llvm-svn: 114898
2010-09-27 22:04:54 +00:00
Rafael Espindola
9ca41113f6
Make sure .text doesn't produce extra alignment.
...
llvm-svn: 114895
2010-09-27 21:40:27 +00:00
Rafael Espindola
9735f4ff8d
Factor symbol value computation into a function.
...
llvm-svn: 114891
2010-09-27 21:23:02 +00:00
Michael J. Spencer
ce2e535b19
MC-COFF: Fix signed/unsigned comparison.
...
llvm-svn: 114888
2010-09-27 21:17:39 +00:00
Daniel Dunbar
d116d8a4e9
MC/AsmParser: Handle exponents in floating point literals.
...
llvm-svn: 114861
2010-09-27 20:12:52 +00:00
Rafael Espindola
cceded493f
Remove unused argument.
...
llvm-svn: 114852
2010-09-27 18:13:03 +00:00
Benjamin Kramer
c758311025
Push twines deeper into SourceMgr's error handling methods.
...
llvm-svn: 114847
2010-09-27 17:42:11 +00:00
Michael J. Spencer
d628377a2d
MC-COFF: Drop empty sections, and label symbols. Convert relocations
...
targeted at symbols into relocations relative to the containing section.
Patch by Nathan Jeffords!
llvm-svn: 114823
2010-09-27 08:58:26 +00:00
Rafael Espindola
75d65b9a03
Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put
...
symbols defined in merge sections in independent atoms.
llvm-svn: 114786
2010-09-25 05:42:19 +00:00
Rafael Espindola
cf1f985838
Reapply 114678 and 114667. Reverting them did not fix the bot:
...
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost/builds/69
llvm-svn: 114761
2010-09-24 21:19:03 +00:00
Rafael Espindola
3843bb9d2c
Revert 114678 and 114667 to see if
...
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost
gets happy.
llvm-svn: 114742
2010-09-24 18:48:08 +00:00
Daniel Dunbar
ce17f72c38
MC/AsmParser: Handle a missed case of floating literals in the lexer.
...
llvm-svn: 114733
2010-09-24 17:10:26 +00:00
Daniel Dunbar
2af1653032
MC/AsmParser: Support .single and .double for embedding floating point literals.
...
- I believe more modern 'gas' supports a more enhanced set of arithmetic on
them, but for now the only thing we can do is emit them as data.
llvm-svn: 114719
2010-09-24 01:59:56 +00:00
Daniel Dunbar
3068a93dc1
MC/Lexer: Add 'Real' token type for floating point literals.
...
llvm-svn: 114718
2010-09-24 01:59:31 +00:00
Daniel Dunbar
74c1f1192c
MC: Add missing ')' in diagnostic.
...
llvm-svn: 114717
2010-09-24 01:58:56 +00:00
Rafael Espindola
f458f04eb1
Correctly handle weak undefined symbols. Before we would get a invalid binding
...
(2 == STB_WEAK | STB_GLOBAL).
llvm-svn: 114690
2010-09-23 19:55:14 +00:00
Rafael Espindola
6366d1b858
Correctly compute the offset of the symbol. Forgot these bits from the
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last commit.
llvm-svn: 114678
2010-09-23 18:01:31 +00:00
Rafael Espindola
48e108753b
Represent relocations against local symbols as relocations against the section
...
they are in. Both ways should be equivalent, but gas produces relocations
against the section.
Roman wrote the patch, I added the test.
llvm-svn: 114667
2010-09-23 17:25:18 +00:00
Rafael Espindola
2816588eb9
Fix the FIXME.
...
llvm-svn: 114639
2010-09-23 14:14:56 +00:00
Sean Callanan
002ad003a3
Fixed a crash in the enhanced disassembler where
...
because of the lack of a newline, AsmToken::Eof
was being found instead of AsmToken::EndOfStatement.
llvm-svn: 114621
2010-09-23 02:14:12 +00:00
Jim Grosbach
85dcd3d0f4
Add support for ELF PLT references for ARM MC asm printing. Adding a
...
new VariantKind to the MCSymbolExpr seems like overkill, but I'm not sure
there's a more straightforward way to get the printing difference captured.
(i.e., x86 uses @PLT, ARM uses (PLT)).
llvm-svn: 114613
2010-09-22 23:27:36 +00:00
Rafael Espindola
dee12d8110
Avoid some Mach-O specific alignment being done on ELF.
...
llvm-svn: 114594
2010-09-22 22:27:05 +00:00
Chris Lattner
7bce0596a7
allow target-specific label suffixes, patch by Yuri Gribov!
...
llvm-svn: 114592
2010-09-22 22:19:53 +00:00
Rafael Espindola
0e527b7ed5
Fix typo and add a FIXME.
...
llvm-svn: 114570
2010-09-22 19:04:41 +00:00
Jim Grosbach
6ebd728067
grammar tweakage
...
llvm-svn: 114561
2010-09-22 18:18:30 +00:00
Jim Grosbach
3bde49aa29
remove trailing whitespace
...
llvm-svn: 114560
2010-09-22 18:16:55 +00:00
Rafael Espindola
9bac6cb544
Correctly align bss.
...
llvm-svn: 114556
2010-09-22 17:43:04 +00:00
Chris Lattner
2bb9504d1a
fix rdar://8456417 - llvm-mc can't do basic math
...
llvm-svn: 114532
2010-09-22 05:05:16 +00:00
Rafael Espindola
461a692c7f
Revert unrelated change that was accidentally included in the previous commit.
...
llvm-svn: 114383
2010-09-21 00:40:19 +00:00
Rafael Espindola
f0591c1642
Implement support for .local and its "interesting" interactions with .comm.
...
llvm-svn: 114382
2010-09-21 00:24:38 +00:00
Rafael Espindola
32ab4558fe
Produce a R_X86_64_32 when the value is >=0.
...
llvm-svn: 114339
2010-09-20 19:20:47 +00:00
Rafael Espindola
57e599a82a
Make sure the STT_FILE symbol is the first one in the symbol table.
...
llvm-svn: 114285
2010-09-18 15:03:21 +00:00
Rafael Espindola
0ecde03e9f
Avoid relocations in a common case.
...
llvm-svn: 114229
2010-09-17 22:34:41 +00:00
Daniel Dunbar
baad46c6ee
Fix an MSVC warning.
...
llvm-svn: 114184
2010-09-17 16:34:24 +00:00
Daniel Dunbar
35a7a0ee2e
MC/Mach-O/i386: Fix a crash in relocation handling.
...
llvm-svn: 114176
2010-09-17 15:21:50 +00:00
Daniel Dunbar
55f16678e4
MC/AsmParser: Add support for 'a + 4@GOTPCREL' and friends, by reconsing the
...
expression to include the modifier.
- Gross, but this a corner case we don't expect to see often in practice, but
it is worth accepting.
- Also improves diagnostics on invalid modifiers.
llvm-svn: 114154
2010-09-17 02:47:07 +00:00
Rafael Espindola
44bf266111
Print the address of sections as 0 and create the metadata sections in the
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same order as gnu as.
llvm-svn: 114109
2010-09-16 19:46:31 +00:00
Rafael Espindola
f7f433200b
Make sure that names like .note.GNU-stack are accepted as valid section names.
...
llvm-svn: 114091
2010-09-16 17:05:55 +00:00
Rafael Espindola
922e3f454b
Add support for the .zero directive.
...
llvm-svn: 114077
2010-09-16 15:03:59 +00:00
Rafael Espindola
f667d929ce
Add a InitSections method to the streamer interface.
...
The ELF implementation now creates text, data and bss to match the gnu as
behavior.
The text streamer still has the old MachO specific behavior since
the testsuite checks that it will error when a directive is given
before a setting the current section for example.
A nice benefit is that -n is not required anymore when producing
ELF files.
llvm-svn: 114027
2010-09-15 21:48:40 +00:00
Michael J. Spencer
93c9b2ea93
Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."
...
This reverts commit r113632
Conflicts:
cmake/modules/AddLLVM.cmake
llvm-svn: 113819
2010-09-13 23:59:48 +00:00
Rafael Espindola
9fd2ed9243
Factoring and potential bug fix. The elf "flags" cannot be used as masks.
...
For example, setting STT_OBJECT (1) and STT_FUNC (2), should not produce
a STT_SECTION (3).
llvm-svn: 113759
2010-09-13 17:39:45 +00:00
Rafael Espindola
12d73d1f18
Add support for leb128 of absolute expressions.
...
llvm-svn: 113691
2010-09-11 16:45:15 +00:00
Chris Lattner
a2a9d16b78
fix the asmparser so that the target is responsible for skipping to
...
the end of the line on a parser error, allowing skipping to happen
for syntactic errors but not for semantic errors. Before we would
miss emitting a diagnostic about the second line, because we skipped
it due to the semantic error on the first line:
foo %eax
bar %al
This fixes rdar://8414033 - llvm-mc ignores lines after an invalid instruction mnemonic errors
llvm-svn: 113688
2010-09-11 16:18:25 +00:00
Michael J. Spencer
dc38d36ccb
CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.
...
llvm-svn: 113632
2010-09-10 21:14:25 +00:00
Daniel Dunbar
e5444a88cd
llvm-mc: Don't crash when using -n and we see a directive before the initial section.
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- This is annoying, because we have to scatter this check everywhere that could emit real data, but I see no better solution.
llvm-svn: 113552
2010-09-09 22:42:59 +00:00
Daniel Dunbar
43325c4a68
llvm-mc: Make sure we exit != 0 if any errors are encountered.
...
llvm-svn: 113551
2010-09-09 22:42:56 +00:00
Benjamin Kramer
6c3c349b2b
MCELF: Write relocation fragments in the right endian.
...
- This code is gross, but does the job for now.
llvm-svn: 113509
2010-09-09 18:01:29 +00:00
Roman Divacky
3b727f55aa
Make ELF OS ABI dependent on the OS from target triple.
...
llvm-svn: 113508
2010-09-09 17:57:50 +00:00
Daniel Dunbar
a90e25cc64
MC: Give a (lame) hard error if a .org directive would create an unreasonably
...
large object file (> 1GB).
llvm-svn: 113494
2010-09-09 16:23:33 +00:00
Roman Divacky
2ef1a589c5
ELF_STB_Local is 0 so setting and checking it must be done specially
...
llvm-svn: 113375
2010-09-08 18:08:40 +00:00
Roman Divacky
6c27de28b5
Unresolved weak symbols have value equal zero.
...
llvm-svn: 113358
2010-09-08 14:29:45 +00:00
Chris Lattner
91689c1d0f
change the MC "ParseInstruction" interface to make it the
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implementation's job to check for and lex the EndOfStatement
marker.
llvm-svn: 113347
2010-09-08 05:10:46 +00:00
Benjamin Kramer
3723ba1fe0
MCELF: Align symtab, relocation sections and section headers properly. Patch by Krister Wombell.
...
llvm-svn: 113155
2010-09-06 16:11:52 +00:00
Bill Wendling
78395e4b8a
Get rid of "passing signed into unsigned parameter" warning on PPC.
...
llvm-svn: 112995
2010-09-03 19:09:46 +00:00
Benjamin Kramer
e39017cb97
Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky.
...
llvm-svn: 112849
2010-09-02 18:53:37 +00:00
Benjamin Kramer
5af02b0360
Allow MCSA_WeakRef in ELF. Patch by Roman Divacky.
...
llvm-svn: 112834
2010-09-02 17:18:32 +00:00
Devang Patel
da3ef85460
Fix .debug_range for linux. Patch by Krister Wombell.
...
llvm-svn: 112830
2010-09-02 16:43:44 +00:00
Devang Patel
ea63639da5
Use absolute label for DW_AT_stmt_list if a target does not prefer offset here.
...
This patch was developed on top of original patch by Artur Pietrek.
llvm-svn: 112678
2010-08-31 23:50:19 +00:00
Kevin Enderby
d94dacf829
This is the second of three patches to implement support for the .loc directive
...
and output the dwarf line number tables. This takes the current loc info after
an instruction is assembled and saves the needed info into an object that has
vector and for each section. These objects will be used for the final patch to
build and emit the encoded dwarf line number tables. Again for now this is only
in the Mach-O streamer but at some point will move to a more generic place.
llvm-svn: 112668
2010-08-31 22:55:11 +00:00
Benjamin Kramer
4226198a1d
Allow creation of SHT_NULL sections, from Roman Divacky.
...
llvm-svn: 112605
2010-08-31 17:03:33 +00:00
Benjamin Kramer
b1b493bcab
MCELF: The value of all common symbols is the offset from the start of the section. Patch by Roman Divacky.
...
llvm-svn: 112492
2010-08-30 17:20:17 +00:00
Benjamin Kramer
8199447851
The value is offset from the start of the section for non-common symbols, submitted by Jordan Gordeev.
...
llvm-svn: 112473
2010-08-30 12:00:16 +00:00
Benjamin Kramer
f791b9fc56
Index external symbols by symbol table instead of parent section, by Roman Divacky.
...
llvm-svn: 112472
2010-08-30 11:59:29 +00:00
Benjamin Kramer
6ebea89316
Mark all common symbols external. This is not exactly correct but it lets apps
...
link for now and can be adjusted later. Patch by Roman Divacky.
llvm-svn: 112471
2010-08-30 11:56:55 +00:00
Chris Lattner
95bb297c26
squish dead code.
...
llvm-svn: 112350
2010-08-28 03:21:03 +00:00
Benjamin Kramer
1f6012479f
MCELF: Port EmitInstruction changes from MachO streamer. Patch by Roman Divacky.
...
llvm-svn: 112260
2010-08-27 10:40:51 +00:00
Benjamin Kramer
05e22982c8
MCELF: Always overwrite FixedValue.
...
llvm-svn: 112259
2010-08-27 10:38:39 +00:00
Benjamin Kramer
2c45f431fa
MCELF: Fix a thinko of mine.
...
llvm-svn: 112203
2010-08-26 18:12:04 +00:00
Benjamin Kramer
929cc7618f
MCELF: Compensate for the addend on i386. Patch by Roman Divacky, with some cleanups.
...
llvm-svn: 112197
2010-08-26 17:23:02 +00:00
Benjamin Kramer
37b384cd66
MCELF: Use precomputed symbol indices, patch by Roman Divacky.
...
llvm-svn: 112079
2010-08-25 20:09:43 +00:00
Michael J. Spencer
237e4ecafb
MC: Fix inconsistant naming in COFF object writer. Patch by Cameron Esfahani.
...
llvm-svn: 112076
2010-08-25 19:27:27 +00:00
Kevin Enderby
a71ab07e14
Change the parsing of .loc back to allow the LineNumber field to be optional as
...
it is with other assemblers.
llvm-svn: 111967
2010-08-24 21:14:47 +00:00
Michael J. Spencer
ccd28d0665
Fix COFF x86-64 relocations. PR7960.
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Multiple symbol reloc handling part of the patch by Cameron Esfahani.
llvm-svn: 111963
2010-08-24 21:04:52 +00:00
Kevin Enderby
1264b7cab8
First bit of support for the dwarf .loc directive. This patch updates the
...
needed parsing for the .loc directive and saves the current info from that
into the context. The next patch will take the current loc info after an
instruction is assembled and save that info into a vector for each section for
use to build the line number tables. The patch after that will encode the info
from those vectors into the output file as the dwarf line tables.
llvm-svn: 111956
2010-08-24 20:32:42 +00:00
Daniel Dunbar
2476432639
MC/AsmParser: Change ParseExpression to use ParseIdentifier(), to support
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dollars in identifiers.
llvm-svn: 111946
2010-08-24 19:13:42 +00:00
Daniel Dunbar
3b96ffdac1
MC/Parser: Accept leading dollar signs in identifiers.
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- Implemented by manually splicing the tokens. If this turns out to be
problematically platform specific, a more elegant solution would be to
implement some context dependent lexing support.
llvm-svn: 111934
2010-08-24 18:12:12 +00:00
Benjamin Kramer
a536f077fe
Relocate against parent if the symbol is not in section or it's a common symbol, from Roman Divacky.
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llvm-svn: 111925
2010-08-24 17:34:39 +00:00
Chris Lattner
02db8f6415
fix rdar://7997827 - Accept and ignore LL and ULL suffixes on integer literals.
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Also fix 0b010 syntax to actually work while we're at it :-)
llvm-svn: 111876
2010-08-24 00:43:25 +00:00
Benjamin Kramer
d41b53c037
Fix thinko. Having no tests is great ...
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llvm-svn: 111848
2010-08-23 21:32:00 +00:00
Benjamin Kramer
c4809c930a
Reduce code duplication.
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llvm-svn: 111846
2010-08-23 21:23:52 +00:00
Benjamin Kramer
86511dce18
ELFObjectWriter: Run ComputeSymbolTable before recording relocations. This way we can use the information it has computed and don't have to recompute the same stuff over and over again.
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llvm-svn: 111844
2010-08-23 21:19:37 +00:00
Benjamin Kramer
40f83489b4
Add the symbol offset to the relocation value when we relocate against section. By Roman Divacky.
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llvm-svn: 111824
2010-08-23 19:05:46 +00:00
Benjamin Kramer
620b68e883
Use the proper relocation section + cleanup, from Roman Divacky.
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llvm-svn: 111819
2010-08-23 18:24:20 +00:00
Michael J. Spencer
db06215b7f
Revert part of my last commit. the mingw32 build bot doesn't seem to like it.
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llvm-svn: 111793
2010-08-23 05:25:23 +00:00
Michael J. Spencer
e87231232a
Workaround broken jump tables on x86-64 COFF.
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llvm-svn: 111792
2010-08-23 04:45:37 +00:00
Michael J. Spencer
377aa20e6e
MC: Add partial x86-64 support to COFF.
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llvm-svn: 111728
2010-08-21 05:58:13 +00:00
Benjamin Kramer
448886d5df
MCELF: Count the section orders properly. Patch by Roman Divacky.
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llvm-svn: 111517
2010-08-19 13:44:49 +00:00
Daniel Dunbar
8e92d9b68d
MC/ELF: Allow null values in virtual sections, ELF doesn't use special
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directives for putting contents in .bss, for example.
llvm-svn: 111376
2010-08-18 18:22:37 +00:00
Benjamin Kramer
da7604f53d
Remove dead code. Fixes a GCC warning.
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llvm-svn: 111271
2010-08-17 19:45:05 +00:00
Benjamin Kramer
1afba421a9
Sketch i386 relocations handling, from Roman Divacky.
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Hello world builds & runs now on i386/ELF with -integrated-as.
llvm-svn: 111264
2010-08-17 18:20:28 +00:00
Benjamin Kramer
fd0541566b
Use the correct entry size for relocation entries, from Roman Divacky.
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llvm-svn: 111259
2010-08-17 17:56:13 +00:00
Benjamin Kramer
1fe76565d0
Differentiate between RELA and REL relocations, from Roman Divacky.
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llvm-svn: 111252
2010-08-17 17:30:07 +00:00
Benjamin Kramer
896bd7e932
One baby step towards i386 ELF, from Roman Divacky.
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llvm-svn: 111247
2010-08-17 17:02:29 +00:00
Benjamin Kramer
b962ca0ce5
Try to silence a overeager GCC warning.
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llvm-svn: 111214
2010-08-17 00:33:24 +00:00
Benjamin Kramer
5f237942f5
A round of minor cleanups for ELFObjectWriter.
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llvm-svn: 111213
2010-08-17 00:00:46 +00:00
Benjamin Kramer
be6cca2b7d
Silence warnings and simplify code. Eliminate a 32/64 bit portability issue.
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llvm-svn: 111201
2010-08-16 23:00:12 +00:00
Eli Friedman
1fe0d53aec
Fixes for generation of ELF relocations. Patch by Roman Divacky.
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llvm-svn: 111183
2010-08-16 21:17:09 +00:00
Eli Friedman
b20b5249d2
Fix a few warnings in and detabify MCELFStreamer and ELFObjectWriter.
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llvm-svn: 111175
2010-08-16 19:15:06 +00:00
Matt Fleming
6c1ad4835e
Add ELF ObjectWriter and Streamer support.
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I forgot to add these files in commit 111172.
llvm-svn: 111174
2010-08-16 18:57:57 +00:00
Matt Fleming
d83b927897
Add ELF ObjectWriter and Streamer support.
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llvm-svn: 111172
2010-08-16 18:35:43 +00:00
Matt Fleming
9cecd63b07
Layout helper function.
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Introduce a helper method to add a section to the end of a layout. This
will be used by the ELF ObjectWriter code to add the metadata sections
(symbol table, etc) to the end of an object file.
llvm-svn: 111171
2010-08-16 18:35:06 +00:00
Matt Fleming
c6beca522c
Record a symbol's size which is needed for ELF symbol tables.
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llvm-svn: 111170
2010-08-16 18:34:31 +00:00
Chris Lattner
1218ed824d
silence a vc2010 warning: " result of 32-bit shift implicitly converted to
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64 bits (was 64-bit shift intended?)", pointed out by 'nobled' on llvmdev
llvm-svn: 111148
2010-08-16 16:35:20 +00:00
Daniel Dunbar
2ecc3bb4f7
MC/AsmParser: Push the burdon of emitting diagnostics about unmatched
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instructions onto the target specific parser, which can do a better job.
llvm-svn: 110889
2010-08-12 00:55:38 +00:00
Daniel Dunbar
2eca0252c3
llvm-mc: Add -show-inst-operands, for dumping the parsed instruction representation before matching.
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llvm-svn: 110791
2010-08-11 06:37:09 +00:00
Daniel Dunbar
ebace2248f
MCAsmParser: Add dump() hook to MCParsedAsmOperand.
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llvm-svn: 110790
2010-08-11 06:37:04 +00:00
Daniel Dunbar
d215976208
MC/AsmParser: Fix a bug in macro argument parsing, which was dropping
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parentheses from argument lists.
llvm-svn: 110692
2010-08-10 17:38:52 +00:00
Michael J. Spencer
18bf25f189
Revert "MC/MachO: Fix possible null pointer dereference."
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This reverts commit 110575.
Target.isAbsolute() is true if SD would be null.
llvm-svn: 110683
2010-08-10 16:00:49 +00:00
Kevin Enderby
7221b76c32
Next bit of support for the dwarf .file directive. This patch takes the
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previously collected info from the .file directives and outputs the encoded
bytes for it. For now this is only in the Mach-O streamer but at some point
will move to a more generic place.
llvm-svn: 110617
2010-08-09 22:52:14 +00:00
Michael J. Spencer
4a5167c836
MC/MachO: Fix possible null pointer dereference.
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Discovered by Microsoft Visual Studio 2010 Code Analysis.
llvm-svn: 110575
2010-08-09 15:28:05 +00:00
Michael J. Spencer
54cfd42c33
MC: Fix symbol fragment offsets in COFF.
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Patch by Cameron Esfahani!
llvm-svn: 110104
2010-08-03 05:02:46 +00:00
Michael J. Spencer
d32764c8a0
Revert "MC: Fix symbol fragment offsets in COFF."
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This reverts commit r110100
Wrong path caps.
llvm-svn: 110103
2010-08-03 04:53:28 +00:00
Michael J. Spencer
a6cfbeb98c
MC: Add time travel support to COFF.
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llvm-svn: 110101
2010-08-03 04:43:33 +00:00
Michael J. Spencer
cf3d8b4ec4
MC: Fix symbol fragment offsets in COFF.
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Patch by Cameron Esfahani!
llvm-svn: 110100
2010-08-03 04:43:24 +00:00
Daniel Dunbar
727be43a3d
Silence some -Asserts uninitialized variable warnings.
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llvm-svn: 109956
2010-07-31 21:08:54 +00:00
Michael J. Spencer
6b4925e223
Add relax all support to the COFF object streamer.
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llvm-svn: 109947
2010-07-31 06:22:29 +00:00
Daniel Dunbar
5dc31317dd
MC: Initialize MCFragment::Offset, noticed by Cameron Esfahani.
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llvm-svn: 109875
2010-07-30 18:32:09 +00:00
Benjamin Kramer
a3e0ddb564
Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ownership of the TargetAsmBackend and the MCCodeEmitter.
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llvm-svn: 109767
2010-07-29 17:48:06 +00:00
Benjamin Kramer
bccfec653d
Stop leaking std::strings in GetDwarfFile.
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llvm-svn: 109746
2010-07-29 13:53:19 +00:00
Benjamin Kramer
c2997dde85
COFFObjectWriter: Don't leak COFFSymbols and COFFSections.
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llvm-svn: 109745
2010-07-29 11:57:59 +00:00
Daniel Dunbar
b759a13da8
MC: Destroy Macro instances.
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llvm-svn: 109720
2010-07-29 01:51:55 +00:00
Kevin Enderby
e5930f142a
Added first bit of support for the dwarf .file directive. This patch collects
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the info from the .file directive and makes file and directory tables that
will eventually be put out as part of the dwarf info in the output file.
llvm-svn: 109651
2010-07-28 20:55:35 +00:00
Daniel Dunbar
e397dded7b
MC: Put back the MCFragment vtable, so subclasses are destroyed properly (duh).
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llvm-svn: 109649
2010-07-28 20:28:45 +00:00
Douglas Gregor
675b162512
Fix format-specifier warning
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llvm-svn: 109391
2010-07-26 03:55:44 +00:00
Michael J. Spencer
c21293792e
MC: Fix whitespace error from last commit.
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A Visual C++ extension that removes trailing new lines? Seriously?
llvm-svn: 109390
2010-07-26 03:01:28 +00:00
Michael J. Spencer
b5fc138547
MC: Add WinCOFFObjectWriter implementation.
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Origonal Windows COFF implementation by Nathan Jedffords.
llvm-svn: 109389
2010-07-26 02:17:32 +00:00
Reid Kleckner
d85e3c5a86
Initial modifications to MCAssembler and TargetMachine for the MCJIT.
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Patch by Olivier Meurant!
llvm-svn: 109080
2010-07-22 05:58:53 +00:00
Matt Fleming
a8f6c1cc26
Add some more handlers for ELF section directives.
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llvm-svn: 108928
2010-07-20 21:12:46 +00:00
Owen Anderson
14d74d649a
Let's get those buildbots green: #include is needed in the header, not just the implementation.
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llvm-svn: 108912
2010-07-20 20:16:11 +00:00
Chris Lattner
073660336c
apparently also missing an include.
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llvm-svn: 108908
2010-07-20 20:06:19 +00:00
Chris Lattner
4e8e93f142
this is in System
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llvm-svn: 108895
2010-07-20 19:54:01 +00:00
Chris Lattner
6faea9668f
turn this into a normal header.
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llvm-svn: 108891
2010-07-20 19:43:19 +00:00
Chris Lattner
55cdb62dd0
hopefully heal the linux builders
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llvm-svn: 108890
2010-07-20 19:40:51 +00:00
Chris Lattner
91773ea9b2
there is no reason to dynamically generate a static header.
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llvm-svn: 108887
2010-07-20 18:59:58 +00:00
Chris Lattner
7e52a45f8a
drop edinfo.inc into the objdir for src!=objdir builds.
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llvm-svn: 108886
2010-07-20 18:53:27 +00:00
Eric Christopher
529989b8b6
Update header.
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llvm-svn: 108883
2010-07-20 18:46:43 +00:00
Chris Lattner
79d68ddda8
hopefully teach cmake to build the .inc file.
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llvm-svn: 108874
2010-07-20 18:33:21 +00:00
Chris Lattner
6219596ff6
cmake too
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llvm-svn: 108872
2010-07-20 18:30:37 +00:00
Chris Lattner
3a14721829
forgot to add a file
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llvm-svn: 108870
2010-07-20 18:29:50 +00:00
Chris Lattner
979634bbb0
start straightening out libedis's dependencies and make it fit
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better in the llvm world. Among other things, this changes:
1. The guts of libedis are now moved into lib/MC/MCDisassembler
2. llvm-mc now depends on lib/MC/MCDisassembler, not tools/edis,
so edis and mc don't have to be built in series.
3. lib/MC/MCDisassembler no longer depends on the C api, the C
API depends on it.
4. Various code cleanup changes.
There is still a lot to be done to make edis fit with the llvm
design, but this is an incremental step in the right direction.
llvm-svn: 108869
2010-07-20 18:25:19 +00:00
Daniel Dunbar
6b4391aa69
MC/Mach-O: Silently ignore .file directives instead of error'ing out on
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them. They aren't important enough to abort the entire assembly, and failing
early makes testing more annoying.
llvm-svn: 108747
2010-07-19 20:44:20 +00:00
Michael J. Spencer
2ed9f4bd39
_[A-Z] identifiers are reserved for the implementation.
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llvm-svn: 108682
2010-07-19 06:26:19 +00:00
Michael J. Spencer
e2da0a478d
MC: Add WinCOFFStreamer implementation and merge common code from MachO
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into MCObjectStreamer.
Origonal Windows COFF implementation by Nathan Jedffords.
llvm-svn: 108678
2010-07-19 06:13:10 +00:00
Daniel Dunbar
eefe8616be
TblGen/AsmMatcher: Add support for honoring instruction Requires<[]> attributes as part of the matcher.
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- Currently includes a hack to limit ourselves to "In32BitMode" and "In64BitMode", because we don't have the other infrastructure to properly deal with setting SSE, etc. features on X86.
llvm-svn: 108677
2010-07-19 05:44:09 +00:00
Eli Friedman
20b026464e
Make .align parse correctly on platforms where .align is measured in bytes.
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llvm-svn: 108674
2010-07-19 04:17:25 +00:00
Daniel Dunbar
8897d479b5
MC/AsmParser: Stop playing unsafe member function pointer calls, this isn't
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portable enough.
- Downside is we now double dispatch through a stub function, but this isn't
performance critical.
llvm-svn: 108661
2010-07-18 22:22:07 +00:00
Daniel Dunbar
40a564f09f
MC/AsmParser: Fix .abort and .secure_log_unique to accept arbitrary token
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sequences, not just strings.
llvm-svn: 108655
2010-07-18 20:15:59 +00:00
Daniel Dunbar
6fb1c3ad8a
MC/AsmParser: Add macro argument substitution support.
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llvm-svn: 108654
2010-07-18 19:00:10 +00:00