fdaae0d16f
Move some data to the TargetWriter.
...
llvm-svn: 122134
2010-12-18 03:27:34 +00:00
79855298b9
Thumb's forced-PC-alignment requirement applies to the _total_ displacement, not just to the fragment relative
...
portion. While the fragment boundary is usually already aligned, it is possible for it not to be, which
would lead to a non-aligned final displacement.
llvm-svn: 122091
2010-12-17 21:49:48 +00:00
d11460a65b
Store and free the TargetObjectWriter.
...
llvm-svn: 122070
2010-12-17 18:01:31 +00:00
6b5e56c2b1
Stub out explicit MCELFObjectTargetWriter interface.
...
llvm-svn: 122067
2010-12-17 17:45:22 +00:00
f0e24d426a
Move createELFObjectWriter to its own header.
...
llvm-svn: 122064
2010-12-17 16:59:53 +00:00
df63335844
Use getFixupKindInfo to implement isFixupKindPCRel, ELF version.
...
llvm-svn: 122050
2010-12-17 07:28:17 +00:00
137d422e50
MC/Expr: Implemnt more aggressive folding during symbol evaluation using
...
IsSymbolRefDifferenceFullyResolved(). For example, we will now fold away
something like:
--
_a:
...
L0:
...
L1:
...
.long (L1 - L0) / 2
--
llvm-svn: 122043
2010-12-17 05:50:33 +00:00
2ee6c9b8c9
MC/Mach-O: On second thought, use a custom hook for enabling aggressive
...
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
- In practice, we will want to change this eventually because it only means we
generate less relocations (it also eliminates the need for the horrible
'.set' hack that Darwin requires in some places).
llvm-svn: 122042
2010-12-17 05:50:29 +00:00
b27bb86ba5
MC/Mach-O: Implement IsSymbolRefDifferenceFullyResolved.
...
- Unlike for fixups, we always do the "reliable" thing (not just for x86_64).
- Since Darwin 'as' would typically reject things that using this will allow,
we don't need to worry about compatibility.
llvm-svn: 122038
2010-12-17 04:54:58 +00:00
f2adf782ab
MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format specific hook.
...
- Currently just has stub implementations for Mach-O, ELF, and COFF.
llvm-svn: 122037
2010-12-17 04:54:54 +00:00
50269280f8
MC/Assembler: Strip out object writer arguments, now that it is always available
...
-- and remove FIXME asking for the same!
llvm-svn: 122032
2010-12-17 02:45:59 +00:00
42a037abb1
MC/Assembler: Make the MCObjectWriter available through the lifetime of the
...
assembler.
llvm-svn: 122031
2010-12-17 02:45:41 +00:00
d2867f13a0
MC/Target: Remove HasScatteredSymbols target hook variable, which has been
...
superceded and was effectively dead.
llvm-svn: 122024
2010-12-17 02:06:08 +00:00
e491ea4630
MC/Expr: Simplify.
...
llvm-svn: 122023
2010-12-17 02:05:45 +00:00
f89156da92
MC: Remove another dead MCAssembler argument, and update clients.
...
llvm-svn: 122013
2010-12-17 01:07:35 +00:00
f15aeb8d01
MC: Remove dead MCAssembler argument -- Rafael, can you check the FIXME I added
...
here?
llvm-svn: 122012
2010-12-17 01:07:31 +00:00
9af1335b5d
MC: Simplify (remove unnecessary MCAssembler argument, obsoleted by containment
...
in MCAsmLayout).
llvm-svn: 122011
2010-12-17 01:07:28 +00:00
33d571e2ae
Write => in a more normal form.
...
llvm-svn: 122009
2010-12-17 01:07:22 +00:00
76793bac89
MC/Expr: Simplify (and add a FIXME).
...
llvm-svn: 122008
2010-12-17 01:07:20 +00:00
32c74ea3ab
"Fix" FDE alignment to match what gas does.
...
llvm-svn: 122006
2010-12-17 00:28:02 +00:00
395a09922b
MC/Expr: Add a doxyment.
...
llvm-svn: 121988
2010-12-16 18:36:25 +00:00
03fcccbb47
MC/Mach-O: Lift some MachObjectWriter arguments into the target specific
...
interface.
llvm-svn: 121981
2010-12-16 17:21:02 +00:00
8888a9604d
MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface.
...
llvm-svn: 121973
2010-12-16 16:09:19 +00:00
73b8713d7c
MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h.
...
llvm-svn: 121971
2010-12-16 16:08:33 +00:00
9d1ed19982
MC/Mach-O: Use fixup info instead of hard coded list.
...
llvm-svn: 121970
2010-12-16 15:42:31 +00:00
0c9d9fdd81
MC: Move target specific fixup info descriptors to TargetAsmBackend instead of
...
the MCCodeEmitter, which seems like a better organization.
- Also, cleaned up some magic constants while in the area.
llvm-svn: 121953
2010-12-16 03:20:06 +00:00
4c1386add9
1. ARM/MC/ELF: A few more ELF relocs for .o
...
2. Fixed EmitLocalCommonSymbol for ELF (Yes, they exist. :)
Test added.
llvm-svn: 121951
2010-12-16 03:12:17 +00:00
ecd0c8a557
MC: Make TargetAsmBackend available to the AsmStreamer.
...
- Treaty talks on the non-proliferation of MC objects broke down.
llvm-svn: 121949
2010-12-16 03:05:59 +00:00
f991d4f587
Better fix for opt build
...
llvm-svn: 121910
2010-12-15 23:14:45 +00:00
15f96baa01
Fix opt -Werror build
...
llvm-svn: 121904
2010-12-15 22:21:20 +00:00
c8fa5fcc42
Fix typo in r121875.
...
llvm-svn: 121880
2010-12-15 19:24:24 +00:00
622ad5170b
Implement cleanups suggested by Daniel.
...
llvm-svn: 121875
2010-12-15 18:48:27 +00:00
844f6b6cfb
Relax alignment fragments.
...
With this we don't need the EffectiveSize field anymore. Without that field
LayoutFragment only updates offsets and we don't need to invalidate the
current fragment when it is relaxed (only the ones following it).
This is also a very small improvement in the accuracy of the layout info as
we now use the after relaxation size immediately.
llvm-svn: 121857
2010-12-15 08:45:53 +00:00
8911d03504
Patch by David Meyer to avoid a O(N^2) behaviour when relaxing fragments.
...
Since we now don't update addresses so early, we might relax a bit more than
we need to. This is simillar to the issue in PR8467.
llvm-svn: 121856
2010-12-15 07:39:29 +00:00
f80f18a11a
Generalize an assert.
...
llvm-svn: 121851
2010-12-15 07:12:24 +00:00
41955ff958
ARM Fixups relative to thumb functions need to have the low bit of the value
...
set for interworking to work properly. rdar://8755956
llvm-svn: 121778
2010-12-14 18:46:57 +00:00
0e909c5f9c
First cut of ARM/MC/ELF PIC relocations.
...
Test has fixme, to move to .s -> .o test when AsmParser works better.
llvm-svn: 121732
2010-12-13 23:16:07 +00:00
e119da1146
Thumb unconditional branch binary encoding. rdar://8754994
...
llvm-svn: 121496
2010-12-10 18:21:33 +00:00
0a017a6db2
Fixed version of 121434 with no new memory leaks.
...
llvm-svn: 121471
2010-12-10 07:39:47 +00:00
a945a34c73
Revert my previous patch to make the valgrind bots happy.
...
llvm-svn: 121461
2010-12-10 04:01:09 +00:00
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
d66e65df03
Use const references.
...
llvm-svn: 121426
2010-12-09 23:08:35 +00:00
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
68b27eb9d1
Rename CB/CBZ specific fixup accordingly.
...
llvm-svn: 121404
2010-12-09 19:50:12 +00:00
3ebe3defe3
Add assert to catch an attempt to emit .byte 256
...
llvm-svn: 121402
2010-12-09 19:26:21 +00:00
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
a7d6aa902a
Support the "target" encodings for the CB[N]Z instructions.
...
llvm-svn: 121308
2010-12-08 23:01:43 +00:00
8a6449c46e
Add support for loading from a constant pool.
...
llvm-svn: 121226
2010-12-08 01:57:09 +00:00
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
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
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
bdbe5a712d
Fix relocations with weak definitions.
...
llvm-svn: 121114
2010-12-07 05:57:28 +00:00
2eabaae459
Fix pcrel relocations that cross sections.
...
llvm-svn: 121107
2010-12-07 03:50:14 +00:00
a2421ec705
Fix a crash reduced from gcc produced assembly.
...
llvm-svn: 121085
2010-12-07 01:09:54 +00:00
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
9e1994698d
Add fixup for Thumb1 BL/BLX instructions.
...
llvm-svn: 121072
2010-12-06 23:57:07 +00:00
1055f72b97
Use references to simplify the code a bit.
...
llvm-svn: 121050
2010-12-06 22:30:54 +00:00
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
e134b08daa
use getSymbolOffset.
...
llvm-svn: 121041
2010-12-06 21:51:55 +00:00
408344017e
Another use of getSymbolOffset.
...
llvm-svn: 121034
2010-12-06 19:55:05 +00:00
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
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
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
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
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
46e40188f7
Simplify a bit.
...
llvm-svn: 120980
2010-12-06 03:36:43 +00:00
45790b82af
Use getSymbolOffset on the COFF writer.
...
llvm-svn: 120979
2010-12-06 03:24:04 +00:00
ac60adb38d
Don't use PadSectionToAlignment on windows.
...
llvm-svn: 120978
2010-12-06 03:03:44 +00:00
e7284c3671
Add a getSymbolOffset method and use it in the ELF writer.
...
llvm-svn: 120977
2010-12-06 02:57:26 +00:00
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
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
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
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
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
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
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
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
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
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
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
9065bfc692
Move EmitValueToOffset to the ObjectStreamer.
...
llvm-svn: 120691
2010-12-02 05:59:38 +00:00
3fa6fc1450
Add EmitInstToFragment to the generic object streamer.
...
llvm-svn: 120690
2010-12-02 05:44:06 +00:00
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
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
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
50fe5c5138
Remove unused argument.
...
llvm-svn: 120621
2010-12-01 22:48:11 +00:00
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
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
5695098c4c
Fix a mised reloc rename spot.
...
llvm-svn: 120585
2010-12-01 19:02:26 +00:00
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
447762da85
Merge System into Support.
...
llvm-svn: 120298
2010-11-29 18:16:10 +00:00
e5e1f9ad0f
Make EmitIntValue non virtual.
...
llvm-svn: 120271
2010-11-28 23:22:44 +00:00
0710e3771f
Forgot the MCPureStreamer::EmitValue in the previous commit.
...
llvm-svn: 120270
2010-11-28 23:13:47 +00:00
a084fd6e9d
Move EmitValue to MCObjectStreamer.
...
llvm-svn: 120269
2010-11-28 23:08:47 +00:00
e5b7415b21
Fixed verson of r120245.
...
Factor some duplicated code into MCObjectStreamer::EmitLabel.
llvm-svn: 120248
2010-11-28 17:18:55 +00:00
1679580cc9
Revert previous patch while I debug the darwin bootstrap failure.
...
llvm-svn: 120246
2010-11-28 16:22:59 +00:00
d4b3feb3f7
Factor some duplicated code into MCObjectStreamer::EmitLabel.
...
llvm-svn: 120245
2010-11-28 15:54:36 +00:00
b746531c2c
Avoid code duplication in the many unsupported EmitGPRel32Value implementations.
...
llvm-svn: 120243
2010-11-28 15:09:24 +00:00
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
0ac77d526d
macho-dump: Add support for dumping relocation entries.
...
llvm-svn: 120216
2010-11-27 13:39:48 +00:00
768a5e8004
Fix a comment.
...
llvm-svn: 120199
2010-11-27 07:39:37 +00:00
4b128a5d4f
Reduce nesting.
...
llvm-svn: 120189
2010-11-27 05:18:48 +00:00
eab6e401fe
MC/Mach-O: Migrate more constants into MachOFormat.h.
...
llvm-svn: 120188
2010-11-27 04:59:14 +00:00
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
bf4a4e4ad9
Remove the unused TheTarget member.
...
llvm-svn: 120168
2010-11-26 04:24:21 +00:00
f13f442b1a
Fix Whitespace.
...
llvm-svn: 120166
2010-11-26 04:16:08 +00:00
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
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
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
e98d483b71
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
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
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
6e13aa1d3b
Reuse data fragments while lowering. Patch by David Meyer.
...
llvm-svn: 119999
2010-11-23 05:49:35 +00:00
767a1e9adc
Fixed some style issues (no _, no spc after !)
...
llvm-svn: 119986
2010-11-22 22:05:16 +00:00
16b75262c4
Make the <ARCH>ELFObjectWriter statics private
...
llvm-svn: 119982
2010-11-22 18:57:00 +00:00
84ffdd5cf1
Fix misplaced statics.
...
llvm-svn: 119981
2010-11-22 18:47:05 +00:00
a262546df7
Kill trailing whitespace
...
llvm-svn: 119979
2010-11-22 18:42:07 +00:00
7c7d0ef287
Refactor the ELFRelocationEntry (pull up) and move the arch-specific statics to inside the class where it belongs.
...
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
3c227b0b89
Add basic CFI methods to the streamer interface.
...
llvm-svn: 119972
2010-11-22 14:27:24 +00:00
556f203d64
Remove some #includes.
...
llvm-svn: 119967
2010-11-22 11:53:17 +00:00
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
26cb15a549
Handle PCRel relocations with absolute values. Fixes PR8656.
...
llvm-svn: 119917
2010-11-21 00:48:25 +00:00
8be14414f6
Added support for the Mach-O .symbol_resolver directive. rdar://8673046
...
llvm-svn: 119816
2010-11-19 18:39:33 +00:00
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
0b4c9aa9a9
Add an assert.
...
llvm-svn: 119788
2010-11-19 04:55:36 +00:00
92ca933f6e
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
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
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
7a2cd8b540
make isVirtualSection a virtual method on MCSection. Chris' suggestion.
...
llvm-svn: 119547
2010-11-17 20:03:54 +00:00
d82684c7fc
Fix typo.
...
llvm-svn: 119542
2010-11-17 19:30:11 +00:00
b67912d5cd
Add support for .int.
...
llvm-svn: 119512
2010-11-17 16:24:40 +00:00
5c996894bd
Add support for .2byte, .4byte and .8byte.
...
Fixes PR8631.
llvm-svn: 119511
2010-11-17 16:15:42 +00:00
95d37be1a9
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
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
3bbea57a6e
Parse and ignore some .cfi_* directives.
...
llvm-svn: 119362
2010-11-16 18:34:07 +00:00
7d19efd6ff
A bit more of gnu as compatibility when handling relocations with aliases.
...
llvm-svn: 119328
2010-11-16 04:11:46 +00:00
202d91e433
Fix compiler warnigns.
...
llvm-svn: 119175
2010-11-15 19:20:50 +00:00
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
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
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
9e7d8c0313
correct the fixup comment printer to work on big endian platforms.
...
llvm-svn: 119122
2010-11-15 05:56:19 +00:00
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
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
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
a7d0bed336
Fix another case of a .comm directive without a corresponding .type
...
directive.
llvm-svn: 119073
2010-11-14 21:11:16 +00:00
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
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
0e3decfcf7
Simplify getSymbolIndexInSymbolTable by setting the actual index of
...
the symbols.
llvm-svn: 119022
2010-11-14 03:12:24 +00:00
eba9022652
Fix warning.
...
llvm-svn: 119021
2010-11-14 01:34:31 +00:00
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
2d006b1ade
Fix warning and add support for printing gnu_unique_object.
...
llvm-svn: 118981
2010-11-13 04:55:06 +00:00
4bcf94c75a
Parse and record the gnu_unique_object type.
...
llvm-svn: 118980
2010-11-13 04:51:02 +00:00
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
1d37f35eea
Fix the encoding of negative line deltas.
...
llvm-svn: 118962
2010-11-13 01:06:27 +00:00
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
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
de990b270d
gnu as support both % and @ before types, do the same.
...
llvm-svn: 118893
2010-11-12 15:47:08 +00:00
ba321cb120
Trailing whitespace.
...
llvm-svn: 118831
2010-11-11 20:16:23 +00:00
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
a3e9a2298d
Initial comdat implementation.
...
llvm-svn: 118805
2010-11-11 18:13:52 +00:00
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
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
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
5a8d781caa
Factor some code into WriteSection.
...
llvm-svn: 118733
2010-11-10 23:36:59 +00:00
eb97f59753
Update the section index map after we add the medatada sections.
...
llvm-svn: 118728
2010-11-10 22:34:07 +00:00
1801410fa8
Use SectionIndexMap in WriteSymbolTable to make it a little less brittle.
...
llvm-svn: 118725
2010-11-10 22:16:43 +00:00
d634003ebd
Factor some code into ComputeIndexMap.
...
llvm-svn: 118722
2010-11-10 21:51:05 +00:00
51d68339a2
Change the String<size> methods to take a fragment instead of a buffer.
...
llvm-svn: 118709
2010-11-10 20:02:59 +00:00
36ef57d2eb
Use MCSectionELF in places we know we have an ELF section.
...
llvm-svn: 118699
2010-11-10 19:05:07 +00:00
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
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
33048f069f
Revert previous patch. Missed a case.
...
llvm-svn: 118645
2010-11-09 22:54:38 +00:00
4bdd2724e3
Remove IsExplicit. It was always false.
...
llvm-svn: 118639
2010-11-09 22:37:44 +00:00
8a3c3f2ad3
Fix typo.
...
llvm-svn: 118421
2010-11-08 17:53:02 +00:00
9d17a3194e
Set default flags for .rodata.
...
llvm-svn: 118395
2010-11-08 02:47:59 +00:00
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
5665a93bc5
Relax dwarf line fragments. This fixes a crash in the included testcase.
...
llvm-svn: 118365
2010-11-07 02:07:12 +00:00
cbdf7efe1c
Add '.code 32' assembler directive to MC streamers.
...
llvm-svn: 118309
2010-11-05 22:40:09 +00:00
5a2c68d308
MC'ize the '.code 16' and '.thumb_func' ARM directives.
...
llvm-svn: 118301
2010-11-05 22:08:08 +00:00
80bb80f5fc
Put class into an anonymous namespace.
...
llvm-svn: 118294
2010-11-05 19:56:38 +00:00
46c2acbcb4
Allow targets to specify the MachO CPUType/CPUSubtype information.
...
llvm-svn: 118288
2010-11-05 18:48:58 +00:00
c75bb744e1
syntaxunified directive is a no-op for MachO writing.
...
llvm-svn: 118287
2010-11-05 18:47:32 +00:00
38d0756b88
Add 118023 back, but with proper spelling for .uleb128/.sleb128.
...
llvm-svn: 118254
2010-11-04 18:17:08 +00:00
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
5e874982f2
Add support for expressions in .sleb/.uleb directives.
...
llvm-svn: 118023
2010-11-02 17:22:24 +00:00
13ddd6d410
Write the line info to .debug_line.
...
llvm-svn: 117930
2010-11-01 17:07:14 +00:00
72b5488680
Move EmitInstruction to MCObjectStreamer so that ELF and MachO can share it.
...
llvm-svn: 117925
2010-11-01 16:27:31 +00:00
144fb8af58
Add support for .value.
...
llvm-svn: 117922
2010-11-01 15:29:07 +00:00
1614597873
Implement .weakref.
...
llvm-svn: 117911
2010-11-01 14:28:48 +00:00
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
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
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
63760ba38e
Add support for the .string directive.
...
llvm-svn: 117592
2010-10-28 20:02:27 +00:00
3c5a54e4b9
Defined weak symbols should have non-zero value.
...
llvm-svn: 117585
2010-10-28 19:39:57 +00:00
29f70afbae
Fix relocations with renamed symbols.
...
llvm-svn: 117575
2010-10-28 19:08:03 +00:00
6cd76e63f8
Aliases defined with .symver should copy the binding of the symbols they alias.
...
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
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
fdac6365ab
Implement .equ directive as a synonym to .set.
...
llvm-svn: 117553
2010-10-28 16:22:58 +00:00
936ba3af28
Implement R_X86_64_DTPOFF32.
...
llvm-svn: 117548
2010-10-28 15:11:03 +00:00
2dbec3f762
Implement TLSLD.
...
llvm-svn: 117547
2010-10-28 15:02:40 +00:00
e8f08be11c
Implement DTPOFF.
...
llvm-svn: 117546
2010-10-28 14:48:59 +00:00
6f23eb380d
Implement TLSLDM.
...
llvm-svn: 117544
2010-10-28 14:37:09 +00:00
b3b49bbc39
Implement VK_GOTNTPOFF and switch RelocNeedsGOT to use VariantKind.
...
llvm-svn: 117543
2010-10-28 14:22:44 +00:00
f8537165bd
Add support for R_386_TLS_GD, R_386_TLS_LE_32, R_386_TLS_IE and R_386_TLS_LE.
...
llvm-svn: 117494
2010-10-27 21:23:52 +00:00
24c8b04d5f
Implement R_X86_64_GOTTPOFF, R_X86_64_TLSGD and R_X86_64_TPOFF32.
...
llvm-svn: 117481
2010-10-27 20:28:07 +00:00
14807270be
Replace pointer arithmetic with StringRef::substr.
...
llvm-svn: 117477
2010-10-27 19:53:52 +00:00
095fa9e5cc
Set default type and flags for .init and .fini.
...
llvm-svn: 117471
2010-10-27 18:45:20 +00:00
26496e6835
Produce an error for an invalid use of .symver.
...
llvm-svn: 117462
2010-10-27 17:56:18 +00:00
cc1b168ef6
Symbols defined as the difference of other two end up in the ABS section.
...
llvm-svn: 117451
2010-10-27 16:04:30 +00:00
eb0c2c170d
Add support for the .symver directive. This is really ugly, but most of it is
...
contained in the ELF object writer.
llvm-svn: 117448
2010-10-27 15:18:17 +00:00
a5efd6a27c
Move more logic to isInSymtab and simplify.
...
llvm-svn: 117447
2010-10-27 14:44:52 +00:00
c9fb35e73b
Add support for .ident.
...
llvm-svn: 117389
2010-10-26 19:35:47 +00:00
b3a48f3459
MC/AsmParser: Fix relative precedence of {+,-} and comparison ops.
...
llvm-svn: 117299
2010-10-25 20:18:56 +00:00
7484d2cbec
MC/AsmLexer: Fix bug in source location for Slash token.
...
llvm-svn: 117298
2010-10-25 20:18:53 +00:00
0ed1543d4e
Add support for emitting ARM file attributes.
...
llvm-svn: 117275
2010-10-25 17:50:35 +00:00
800fd3533c
Add X86::reloc_global_offset_table and use it to have a single place where
...
we check for _GLOBAL_OFFSET_TABLE_.
llvm-svn: 117241
2010-10-24 17:35:42 +00:00
9192e7ab12
Make some symbols static, move classes into anonymous namespaces.
...
llvm-svn: 117111
2010-10-22 17:35:07 +00:00
1851090515
Making the e_machine configurable by the target backend in ELFObjectWriter.
...
llvm-svn: 117099
2010-10-22 15:52:49 +00:00
90600d3329
Trailing whitespace.
...
llvm-svn: 117073
2010-10-21 22:04:05 +00:00
31041a9967
Fix Warnings.
...
llvm-svn: 117062
2010-10-21 20:49:38 +00:00
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
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
ee8d15157a
Small cleanups and fixes in preparation for fixing _GLOBAL_OFFSET_TABLE_.
...
llvm-svn: 116848
2010-10-19 19:31:37 +00:00
5391eb61fb
Fix spelling.
...
llvm-svn: 116804
2010-10-19 10:18:23 +00:00
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
fba9f74932
Implement R_386_GOT32.
...
llvm-svn: 116744
2010-10-18 20:47:21 +00:00
0a5314fdb3
Relocate with .bss instead of using the symbol. Matches gas behavior.
...
llvm-svn: 116741
2010-10-18 20:25:33 +00:00
3604d4441a
Reenable assert.
...
llvm-svn: 116738
2010-10-18 19:33:01 +00:00
e3dc9e2ea1
Produce ELF::R_386_GOTPC relocations.
...
llvm-svn: 116728
2010-10-18 18:36:12 +00:00
257374bb0f
Make the bots happy.
...
llvm-svn: 116719
2010-10-18 18:03:28 +00:00
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
4464e0858f
Handle GOTOFF correctly on i386.
...
llvm-svn: 116711
2010-10-18 16:38:04 +00:00
77414757f6
Fix a typo and silence unused variable warnings in -Asserts build.
...
llvm-svn: 116685
2010-10-17 07:38:40 +00:00
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
17990d5690
MC-COFF: Add support for default-null weak externals.
...
llvm-svn: 116666
2010-10-16 08:25:57 +00:00
4d99878a37
MC/AsmParser: Report .stabs directive as unsupported.
...
llvm-svn: 116659
2010-10-16 04:56:42 +00:00
84378f0f53
Refactor alias handling to AliasedSymbol.
...
llvm-svn: 116600
2010-10-15 18:25:33 +00:00
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
bee6e9f8e0
Remove some code duplication.
...
llvm-svn: 116484
2010-10-14 16:34:44 +00:00
a6a984bd96
MC-COFF: Fix .bss section size. Fixes PR8335. Patch by NAKAMUTA Takumi!
...
llvm-svn: 116155
2010-10-09 16:04:45 +00:00
86bbd71088
MC-COFF: Implement InitSections. Fixes PR8335.
...
llvm-svn: 116151
2010-10-09 15:44:27 +00:00
c8dbdfd4ba
MC-COFF: Add COFFAsmParser. Completes PR8343.
...
llvm-svn: 116150
2010-10-09 11:01:07 +00:00
530ce85b3e
Fix Whitespace.
...
llvm-svn: 116149
2010-10-09 11:00:50 +00:00
be52c62a6d
MC-COFF: Assert on non-coff sections.
...
llvm-svn: 116148
2010-10-09 11:00:37 +00:00
3d89823102
MC: Move ParseDirectiveELFType into ELFAsmParser. COFF uses .type for something else.
...
llvm-svn: 116142
2010-10-09 03:47:55 +00:00
aaf4643a31
MC-COFF: Handle relaxation in COFF better. Fixes PR8321.
...
llvm-svn: 116013
2010-10-07 23:55:40 +00:00
87002b592e
Minor cosmetic change: fix DOSish \r\n.
...
llvm-svn: 115910
2010-10-07 07:21:04 +00:00
1666b61357
MC-COFF: Fix symbol aliases. Fixes PR8251.
...
llvm-svn: 115909
2010-10-07 06:29:33 +00:00
883936ce0b
Another case of 256 sections not being enough :-)
...
llvm-svn: 115858
2010-10-06 22:28:19 +00:00
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
e535b01a74
MC: Add missing forward in MCLoggingStreamer.
...
llvm-svn: 115830
2010-10-06 20:36:47 +00:00
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
83b2a3337f
Make sure weak symbols are listed after the local ones.
...
llvm-svn: 115795
2010-10-06 16:47:31 +00:00
8f3d2c9058
Correctly handle GOTPCREL relocations.
...
llvm-svn: 115793
2010-10-06 16:23:36 +00:00
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
0ad137e98e
Implement more alias cases.
...
llvm-svn: 115699
2010-10-05 22:26:43 +00:00
3844da781f
256 sections should be enough for anyone...
...
llvm-svn: 115687
2010-10-05 21:20:07 +00:00
c58a37ea51
Don't crash in a strange .size directive.
...
llvm-svn: 115684
2010-10-05 21:02:45 +00:00
a65d17a5ca
Fix Punctuation.
...
llvm-svn: 115657
2010-10-05 19:48:12 +00:00
a3b34ed2df
MC-COFF: Fix (PR8278) temporary symbol relocations.
...
llvm-svn: 115656
2010-10-05 19:48:03 +00:00
b91bac6c96
Add support for a fill value in the .zero directive.
...
llvm-svn: 115655
2010-10-05 19:42:57 +00:00
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
d03e81dba8
Produce a undefined reference to _GLOBAL_OFFSET_TABLE_ when needed.
...
llvm-svn: 115623
2010-10-05 15:48:37 +00:00
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
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
fd1fff8b19
Implement ELF::R_X86_64_GOTPCREL.
...
llvm-svn: 115547
2010-10-04 19:51:39 +00:00
308363336b
Move isFixupKindX86PCRel.
...
llvm-svn: 115545
2010-10-04 19:46:28 +00:00
baadbd554a
Produce a R_X86_64_PLT32 when needed.
...
llvm-svn: 115541
2010-10-04 19:04:13 +00:00
b2c4ca6433
Produce a R_X86_64_GOT32 when needed.
...
llvm-svn: 115537
2010-10-04 18:44:25 +00:00
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
da0e3d07b2
Include the section address in the computation of the relocation.
...
llvm-svn: 115509
2010-10-04 15:59:01 +00:00
7c48b06930
Correctly compute the relocation when it is not in the first fragment.
...
llvm-svn: 115506
2010-10-04 15:28:43 +00:00
f70b4e0c2e
Implement a very basic PIC case.
...
llvm-svn: 115454
2010-10-03 00:46:57 +00:00
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
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
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
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
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
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
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
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
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
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
c768287968
Test commit - Deleted some whitespace at the end of a line.
...
llvm-svn: 115122
2010-09-30 01:09:20 +00:00
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
86a6222469
MC-COFF: Fix symbol storage class for globals
...
llvm-svn: 115020
2010-09-29 03:13:41 +00:00
b44fd24fc1
change the protocol TargetAsmPArser::MatchInstruction method to take an
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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
01d20a76fe
On elf, undefined symbols can start with .L.
...
llvm-svn: 114958
2010-09-28 16:19:11 +00:00
96bfb50c03
Write relocations in the end of the file. This matches what gas does and
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makes files easier to diff.
llvm-svn: 114898
2010-09-27 22:04:54 +00:00
9ca41113f6
Make sure .text doesn't produce extra alignment.
...
llvm-svn: 114895
2010-09-27 21:40:27 +00:00
9735f4ff8d
Factor symbol value computation into a function.
...
llvm-svn: 114891
2010-09-27 21:23:02 +00:00
ce2e535b19
MC-COFF: Fix signed/unsigned comparison.
...
llvm-svn: 114888
2010-09-27 21:17:39 +00:00
d116d8a4e9
MC/AsmParser: Handle exponents in floating point literals.
...
llvm-svn: 114861
2010-09-27 20:12:52 +00:00
cceded493f
Remove unused argument.
...
llvm-svn: 114852
2010-09-27 18:13:03 +00:00
c758311025
Push twines deeper into SourceMgr's error handling methods.
...
llvm-svn: 114847
2010-09-27 17:42:11 +00:00
d628377a2d
MC-COFF: Drop empty sections, and label symbols. Convert relocations
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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
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
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
3843bb9d2c
Revert 114678 and 114667 to see if
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http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost
gets happy.
llvm-svn: 114742
2010-09-24 18:48:08 +00:00
ce17f72c38
MC/AsmParser: Handle a missed case of floating literals in the lexer.
...
llvm-svn: 114733
2010-09-24 17:10:26 +00:00
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
3068a93dc1
MC/Lexer: Add 'Real' token type for floating point literals.
...
llvm-svn: 114718
2010-09-24 01:59:31 +00:00
74c1f1192c
MC: Add missing ')' in diagnostic.
...
llvm-svn: 114717
2010-09-24 01:58:56 +00:00
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
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
48e108753b
Represent relocations against local symbols as relocations against the section
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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
2816588eb9
Fix the FIXME.
...
llvm-svn: 114639
2010-09-23 14:14:56 +00:00
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
85dcd3d0f4
Add support for ELF PLT references for ARM MC asm printing. Adding a
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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
dee12d8110
Avoid some Mach-O specific alignment being done on ELF.
...
llvm-svn: 114594
2010-09-22 22:27:05 +00:00
7bce0596a7
allow target-specific label suffixes, patch by Yuri Gribov!
...
llvm-svn: 114592
2010-09-22 22:19:53 +00:00
0e527b7ed5
Fix typo and add a FIXME.
...
llvm-svn: 114570
2010-09-22 19:04:41 +00:00
6ebd728067
grammar tweakage
...
llvm-svn: 114561
2010-09-22 18:18:30 +00:00
3bde49aa29
remove trailing whitespace
...
llvm-svn: 114560
2010-09-22 18:16:55 +00:00
9bac6cb544
Correctly align bss.
...
llvm-svn: 114556
2010-09-22 17:43:04 +00:00
2bb9504d1a
fix rdar://8456417 - llvm-mc can't do basic math
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llvm-svn: 114532
2010-09-22 05:05:16 +00:00
461a692c7f
Revert unrelated change that was accidentally included in the previous commit.
...
llvm-svn: 114383
2010-09-21 00:40:19 +00:00
f0591c1642
Implement support for .local and its "interesting" interactions with .comm.
...
llvm-svn: 114382
2010-09-21 00:24:38 +00:00
32ab4558fe
Produce a R_X86_64_32 when the value is >=0.
...
llvm-svn: 114339
2010-09-20 19:20:47 +00:00
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
0ecde03e9f
Avoid relocations in a common case.
...
llvm-svn: 114229
2010-09-17 22:34:41 +00:00
baad46c6ee
Fix an MSVC warning.
...
llvm-svn: 114184
2010-09-17 16:34:24 +00:00
35a7a0ee2e
MC/Mach-O/i386: Fix a crash in relocation handling.
...
llvm-svn: 114176
2010-09-17 15:21:50 +00:00
55f16678e4
MC/AsmParser: Add support for 'a + 4@GOTPCREL' and friends, by reconsing the
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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
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
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
922e3f454b
Add support for the .zero directive.
...
llvm-svn: 114077
2010-09-16 15:03:59 +00:00
f667d929ce
Add a InitSections method to the streamer interface.
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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
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
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
12d73d1f18
Add support for leb128 of absolute expressions.
...
llvm-svn: 113691
2010-09-11 16:45:15 +00:00
a2a9d16b78
fix the asmparser so that the target is responsible for skipping to
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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
dc38d36ccb
CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.
...
llvm-svn: 113632
2010-09-10 21:14:25 +00:00
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
43325c4a68
llvm-mc: Make sure we exit != 0 if any errors are encountered.
...
llvm-svn: 113551
2010-09-09 22:42:56 +00:00
6c3c349b2b
MCELF: Write relocation fragments in the right endian.
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- This code is gross, but does the job for now.
llvm-svn: 113509
2010-09-09 18:01:29 +00:00
3b727f55aa
Make ELF OS ABI dependent on the OS from target triple.
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llvm-svn: 113508
2010-09-09 17:57:50 +00:00
a90e25cc64
MC: Give a (lame) hard error if a .org directive would create an unreasonably
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large object file (> 1GB).
llvm-svn: 113494
2010-09-09 16:23:33 +00:00
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
6c27de28b5
Unresolved weak symbols have value equal zero.
...
llvm-svn: 113358
2010-09-08 14:29:45 +00:00
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
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
78395e4b8a
Get rid of "passing signed into unsigned parameter" warning on PPC.
...
llvm-svn: 112995
2010-09-03 19:09:46 +00:00
e39017cb97
Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky.
...
llvm-svn: 112849
2010-09-02 18:53:37 +00:00
5af02b0360
Allow MCSA_WeakRef in ELF. Patch by Roman Divacky.
...
llvm-svn: 112834
2010-09-02 17:18:32 +00:00
da3ef85460
Fix .debug_range for linux. Patch by Krister Wombell.
...
llvm-svn: 112830
2010-09-02 16:43:44 +00:00
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
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
4226198a1d
Allow creation of SHT_NULL sections, from Roman Divacky.
...
llvm-svn: 112605
2010-08-31 17:03:33 +00:00
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
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
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
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
95bb297c26
squish dead code.
...
llvm-svn: 112350
2010-08-28 03:21:03 +00:00
1f6012479f
MCELF: Port EmitInstruction changes from MachO streamer. Patch by Roman Divacky.
...
llvm-svn: 112260
2010-08-27 10:40:51 +00:00
05e22982c8
MCELF: Always overwrite FixedValue.
...
llvm-svn: 112259
2010-08-27 10:38:39 +00:00
2c45f431fa
MCELF: Fix a thinko of mine.
...
llvm-svn: 112203
2010-08-26 18:12:04 +00:00
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
37b384cd66
MCELF: Use precomputed symbol indices, patch by Roman Divacky.
...
llvm-svn: 112079
2010-08-25 20:09:43 +00:00
237e4ecafb
MC: Fix inconsistant naming in COFF object writer. Patch by Cameron Esfahani.
...
llvm-svn: 112076
2010-08-25 19:27:27 +00:00
a71ab07e14
Change the parsing of .loc back to allow the LineNumber field to be optional as
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it is with other assemblers.
llvm-svn: 111967
2010-08-24 21:14:47 +00:00
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
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
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
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
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
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
d41b53c037
Fix thinko. Having no tests is great ...
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llvm-svn: 111848
2010-08-23 21:32:00 +00:00
c4809c930a
Reduce code duplication.
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llvm-svn: 111846
2010-08-23 21:23:52 +00:00
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
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
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
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
e87231232a
Workaround broken jump tables on x86-64 COFF.
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llvm-svn: 111792
2010-08-23 04:45:37 +00:00
377aa20e6e
MC: Add partial x86-64 support to COFF.
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llvm-svn: 111728
2010-08-21 05:58:13 +00:00
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
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
da7604f53d
Remove dead code. Fixes a GCC warning.
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llvm-svn: 111271
2010-08-17 19:45:05 +00:00
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
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
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
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
b962ca0ce5
Try to silence a overeager GCC warning.
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llvm-svn: 111214
2010-08-17 00:33:24 +00:00
5f237942f5
A round of minor cleanups for ELFObjectWriter.
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llvm-svn: 111213
2010-08-17 00:00:46 +00:00
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
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
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
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
d83b927897
Add ELF ObjectWriter and Streamer support.
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llvm-svn: 111172
2010-08-16 18:35:43 +00:00
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
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
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
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
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
ebace2248f
MCAsmParser: Add dump() hook to MCParsedAsmOperand.
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llvm-svn: 110790
2010-08-11 06:37:04 +00:00
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
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
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
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
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
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
a6cfbeb98c
MC: Add time travel support to COFF.
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llvm-svn: 110101
2010-08-03 04:43:33 +00:00
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
727be43a3d
Silence some -Asserts uninitialized variable warnings.
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llvm-svn: 109956
2010-07-31 21:08:54 +00:00
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
5dc31317dd
MC: Initialize MCFragment::Offset, noticed by Cameron Esfahani.
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llvm-svn: 109875
2010-07-30 18:32:09 +00:00
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
bccfec653d
Stop leaking std::strings in GetDwarfFile.
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llvm-svn: 109746
2010-07-29 13:53:19 +00:00
c2997dde85
COFFObjectWriter: Don't leak COFFSymbols and COFFSections.
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llvm-svn: 109745
2010-07-29 11:57:59 +00:00
b759a13da8
MC: Destroy Macro instances.
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llvm-svn: 109720
2010-07-29 01:51:55 +00:00
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
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
675b162512
Fix format-specifier warning
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llvm-svn: 109391
2010-07-26 03:55:44 +00:00
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
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
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
a8f6c1cc26
Add some more handlers for ELF section directives.
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llvm-svn: 108928
2010-07-20 21:12:46 +00:00
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
073660336c
apparently also missing an include.
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llvm-svn: 108908
2010-07-20 20:06:19 +00:00
4e8e93f142
this is in System
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llvm-svn: 108895
2010-07-20 19:54:01 +00:00
6faea9668f
turn this into a normal header.
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llvm-svn: 108891
2010-07-20 19:43:19 +00:00
55cdb62dd0
hopefully heal the linux builders
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llvm-svn: 108890
2010-07-20 19:40:51 +00:00
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
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
529989b8b6
Update header.
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llvm-svn: 108883
2010-07-20 18:46:43 +00:00
79d68ddda8
hopefully teach cmake to build the .inc file.
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llvm-svn: 108874
2010-07-20 18:33:21 +00:00
6219596ff6
cmake too
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llvm-svn: 108872
2010-07-20 18:30:37 +00:00
3a14721829
forgot to add a file
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llvm-svn: 108870
2010-07-20 18:29:50 +00:00
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
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
2ed9f4bd39
_[A-Z] identifiers are reserved for the implementation.
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llvm-svn: 108682
2010-07-19 06:26:19 +00:00
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
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
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
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
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
6fb1c3ad8a
MC/AsmParser: Add macro argument substitution support.
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llvm-svn: 108654
2010-07-18 19:00:10 +00:00
4323571efb
MC/AsmParser: Add basic support for macro instantiation.
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llvm-svn: 108653
2010-07-18 18:54:11 +00:00
c1f58ec83c
MC/AsmParser: Add basic parsing support for .macro definitions.
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llvm-svn: 108652
2010-07-18 18:47:21 +00:00
828984ff4e
MC/AsmParser: Add .macros_{off,on} support, not that makes sense since we don't
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support macros.
llvm-svn: 108649
2010-07-18 18:38:02 +00:00
d8a1845c31
MC/AsmParser: Use Error() instead of calling PrintMessage() directly.
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llvm-svn: 108648
2010-07-18 18:31:45 +00:00
ba6e354b61
MC/AsmParser: Fix TokError() to accept a Twine.
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llvm-svn: 108647
2010-07-18 18:31:42 +00:00
2a2c6cf5f9
MC/AsmParser: Hide the AsmParser implementation.
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llvm-svn: 108646
2010-07-18 18:31:38 +00:00
9de5967244
Start of .sleb128/.uleb128 parsing support.
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llvm-svn: 108612
2010-07-17 06:27:28 +00:00
9e36dd001a
Work-in-progress parsing for ELF .section directive.
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llvm-svn: 108609
2010-07-17 04:29:04 +00:00
56178a07bf
Add support for parsing .size directives for ELF.
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llvm-svn: 108606
2010-07-17 03:09:18 +00:00
01e3607d70
MC/AsmParser: Lift Run() and TargetParser to base class.
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Also, add constructor function for creating AsmParser instances.
llvm-svn: 108604
2010-07-17 02:26:10 +00:00
c2b3675f8b
fix indentation and 80 cols
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llvm-svn: 108460
2010-07-15 21:19:31 +00:00
92d8998348
Don't pass StringRef by reference.
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llvm-svn: 108366
2010-07-14 22:38:02 +00:00
ab058b83e0
MC/AsmParser: Move ELF specific parser to ELFAsmParser.cpp.
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llvm-svn: 108196
2010-07-12 21:23:32 +00:00
0cb91cfc74
MC/AsmParser: Move Darwin specific parse to DarwinAsmParser.cpp.
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llvm-svn: 108193
2010-07-12 20:51:51 +00:00
a5bf6b6001
MC/AsmParser: Move .section parsing to Darwin specific parser.
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llvm-svn: 108190
2010-07-12 20:42:34 +00:00
aa59cf2686
MC/AsmParser: Move special section directive parsing to Darwin specific parser.
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llvm-svn: 108187
2010-07-12 20:23:36 +00:00
80be44a2ac
MC/AsmParser: Add a basic ELFAsmParser extension.
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llvm-svn: 108185
2010-07-12 20:08:04 +00:00
101c14c940
MC/AsmParser: Inline AsmParser::CreateSymbol into callers.
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llvm-svn: 108183
2010-07-12 19:52:10 +00:00
d388c93f87
MC/AsmParser: Move .tbss and .zerofill parsing to Darwin specific parser.
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llvm-svn: 108180
2010-07-12 19:37:35 +00:00
63a379dd5c
MC/AsmParser: Move .desc parsing to Darwin specific parser.
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llvm-svn: 108179
2010-07-12 19:22:53 +00:00
b992f1a95b
MC/AsmParser: Move .lsym parsing to Darwin specific parser.
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llvm-svn: 108176
2010-07-12 19:08:25 +00:00
ae9da1481a
MC/AsmParser: Move some misc. Darwin directive handling to DarwinAsmParser.
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llvm-svn: 108174
2010-07-12 18:49:22 +00:00
c5011088cd
MC/AsmParser: Add a DarwinAsmParser extension.
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- Currently initialization is a bit of a hack, but harmless. We need to rework
various parts of target initialization to clean this up.
llvm-svn: 108165
2010-07-12 18:12:02 +00:00
dd41dcf270
MC/AsmParser: Switch a bunch of directive parsing to use accessors.
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llvm-svn: 108163
2010-07-12 18:03:11 +00:00
86033407c9
MCAsmParser: Pull some directive handling out into a helper class, and change
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DirectiveMap to be based on MCAsmParserExtension.
llvm-svn: 108161
2010-07-12 17:54:38 +00:00
cc21af1dfb
MC/AsmParser: Switch some directive parsing to use accessor methods.
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llvm-svn: 108160
2010-07-12 17:45:27 +00:00
af3d1de891
MC: Add MCAsmParserExtension, a base class for all the target/object specific
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classes which want to extend the basic asm parser.
llvm-svn: 108158
2010-07-12 17:27:45 +00:00
4be8f2ffad
MC: Move AsmParser::TokError to MCAsmParser().
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llvm-svn: 108155
2010-07-12 17:18:45 +00:00
4042c33cd8
MC: Move getLoc() to MCAsmLexer().
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llvm-svn: 108154
2010-07-12 17:10:00 +00:00
41b4a6b36a
Convert some tab stops into spaces.
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llvm-svn: 108130
2010-07-12 08:16:59 +00:00
2c52b7997c
introduce WinCOFFObjectWriter, patch by Michael Spencer!
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llvm-svn: 108103
2010-07-11 22:07:02 +00:00
56725be9ef
introduce WinCOFFStreamer.cpp, patch by Michael Spencer!
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llvm-svn: 108102
2010-07-11 22:05:00 +00:00
ea9207cd7a
Revert some unneeded parts of the change in r107886 for the
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.weak_def_can_be_hidden directive. Chris pointed out that the MCAsmInfo.h/.cpp
chunks aren't needed for this until the compiler starts generating these. And
when that happens it will be more convenient for it to be a bool than a const
char*.
llvm-svn: 107906
2010-07-08 20:30:44 +00:00
082d0fd7ad
Added the darwin .weak_def_can_be_hidden directive.
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llvm-svn: 107886
2010-07-08 17:22:42 +00:00
05ea2a4791
finish up support for callw: PR7195
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llvm-svn: 107826
2010-07-07 22:35:13 +00:00
0e980755d3
MC: Fix some stray hunks I didn't intend to commit.
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llvm-svn: 107428
2010-07-01 20:48:51 +00:00
02877d6e85
MC: Pass the target instance to the AsmParser constructor.
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llvm-svn: 107426
2010-07-01 20:41:56 +00:00
0aa4365e47
MC: Fix an error message.
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llvm-svn: 107424
2010-07-01 20:20:01 +00:00
329d202362
MC: Move COFF enumeration constants to llvm/Support/COFF.h, patch by Michael
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Spencer!
llvm-svn: 107418
2010-07-01 20:07:24 +00:00
3632171750
Revert r107205 and r107207.
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llvm-svn: 107215
2010-06-29 22:34:52 +00:00
1767723dbe
Introducing the "linker_weak" linkage type. This will be used for Objective-C
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metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is
defined like this:
.globl l_objc_msgSend_fixup_alloc
.weak_definition l_objc_msgSend_fixup_alloc
.section __DATA, __objc_msgrefs, coalesced
.align 3
l_objc_msgSend_fixup_alloc:
.quad _objc_msgSend_fixup
.quad L_OBJC_METH_VAR_NAME_1
This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".
llvm-svn: 107205
2010-06-29 21:24:00 +00:00
a85a90773c
The variable ValueSize is set to 1 on both code paths, and then
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ignored! Remove it.
llvm-svn: 107138
2010-06-29 13:30:08 +00:00
1245e4c07d
The variable "Value" is carefully set to Layout.getSymbolAddress,
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but then not actually used - maybe a bug? Remove the variable.
llvm-svn: 107137
2010-06-29 13:26:33 +00:00
5667a08468
Remove unused calls to Lexer.getLoc and the pointless variable HasFillExpr.
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llvm-svn: 107136
2010-06-29 13:24:40 +00:00
e233dda2e2
Added the darwin .secure_log_unique and .secure_log_reset directives.
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llvm-svn: 107077
2010-06-28 21:45:58 +00:00
7f85520644
Get the addend correct for i386 pic.
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Thanks Daniel!
llvm-svn: 106608
2010-06-22 23:51:47 +00:00
79d2075e4a
"This is just a cosmetic change in MCAsmStreamer.cpp/EmitSymbolAttribute: all attributes have now a \t before and after, as done for '.type'.
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This makes the output look consistent, as well as help some third party assemblers expecting the attributes to be in the second column."
Patch by Arnaud de Grandmaison!
llvm-svn: 106469
2010-06-21 20:35:01 +00:00
93f16372f9
Update comment.
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llvm-svn: 106191
2010-06-17 00:49:46 +00:00
74892d4f1f
In progress on 32-bit addends.
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llvm-svn: 106154
2010-06-16 21:32:38 +00:00
ede8e6d2f0
MC/Mach-O: Rewrite atom association to be a final pass we do in Finish(), instead of tracking as part of emission.
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- This allows sharing more code with the MCObjectStreamer.
llvm-svn: 106143
2010-06-16 20:04:32 +00:00
aa627c39e4
MC: Simplify MCAssembler::isSymbolLinkerVisible to only take an MCSymbol.
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llvm-svn: 106142
2010-06-16 20:04:29 +00:00
b2347fe504
MC: Lift SwitchSection() and Finish() into MCObjectStreamer.
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llvm-svn: 106141
2010-06-16 20:04:25 +00:00
8a3c9d9bc4
MC: Factor out an MCObjectStreamer class, which will be shared by the concrete
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object file format writers.
llvm-svn: 106140
2010-06-16 20:04:22 +00:00
2092dc2acd
Fix indentation.
...
llvm-svn: 106072
2010-06-16 00:26:36 +00:00
a86c2bdd2c
Some more work on mach-o TLV relocations.
...
llvm-svn: 106062
2010-06-15 22:59:05 +00:00
a76715fc88
Don't call flush() at a library level which isn't checking for errors
...
and doesn't know where the output is going.
llvm-svn: 105274
2010-06-01 16:31:34 +00:00
eaddfac539
Rearrange conditionals so we don't get caught with the correct type as wrong.
...
llvm-svn: 104793
2010-05-27 00:52:31 +00:00
b889fc987e
MC: When running with -mc-relax-all, we can eagerly relax instructions and avoid creating unnecessary MCInstFragments.
...
llvm-svn: 104736
2010-05-26 20:37:03 +00:00
9d40ef162b
MC/Mach-O: Factor out EmitInstTo{Fragment,Data} for emitting MCInst's as MCInstFragments or appending onto an MCDataFragment.
...
llvm-svn: 104735
2010-05-26 20:37:00 +00:00
7c8bd0fc98
MC: Change RelaxInstruction to only take the input and output instructions.
...
llvm-svn: 104713
2010-05-26 18:15:06 +00:00
388ff9b1a2
MC: Eliminate an unnecessary copy.
...
llvm-svn: 104709
2010-05-26 17:50:16 +00:00
a19838e107
MC: Simplify MayNeedRelaxation to not provide the fixups, so we can query it
...
before encoding.
llvm-svn: 104707
2010-05-26 17:45:29 +00:00
b34440a6a8
MC: Eliminate MCAsmFixup, replace with MCFixup.
...
llvm-svn: 104699
2010-05-26 15:18:56 +00:00
353a91ff76
MC: Use accessors for access to MCAsmFixup.
...
llvm-svn: 104697
2010-05-26 15:18:31 +00:00
3627af5da4
MC: Change MCInst::dump_pretty to not include a trailing newline.
...
llvm-svn: 104696
2010-05-26 15:18:13 +00:00
870e5759e7
MC: Eliminate MCFragment vtable, which was unnecessary.
...
llvm-svn: 104689
2010-05-26 06:50:57 +00:00
e7b64dcc1e
Start adding mach-o tls reloc support.
...
llvm-svn: 104651
2010-05-26 00:02:12 +00:00
6738a2e39e
llvm-mc: Use EmitIntValue where possible, which makes the API calls from the AsmParser and CodeGen line up better.
...
llvm-svn: 104467
2010-05-23 18:36:38 +00:00
8271d1bb4a
llvm-mc: Use AddBlankLine in asm parser. This makes transliteration match the input much more closely, and also makes the API calls from the AsmParser and CodeGen line up better.
...
llvm-svn: 104466
2010-05-23 18:36:34 +00:00
3ff1a06de6
MC: Add an MCLoggingStreamer, for use in debugging integrated-as mismatches.
...
llvm-svn: 104463
2010-05-23 17:44:06 +00:00
09d47031b1
Expand on comment.
...
llvm-svn: 104396
2010-05-21 23:03:53 +00:00
3dca28d0e2
Fix section attribute name.
...
llvm-svn: 104381
2010-05-21 21:08:52 +00:00
ec9d6faef0
Add support for parsing the ELF .type assembler directive.
...
llvm-svn: 104316
2010-05-21 11:36:59 +00:00
141791c6d1
Grammar fix. This is a test commit.
...
llvm-svn: 104264
2010-05-20 19:45:09 +00:00
7c3e230cd1
Reduce string trashing.
...
llvm-svn: 104223
2010-05-20 14:14:22 +00:00
27e7ffc7d4
Partial code for emitting thread local bss data.
...
llvm-svn: 104197
2010-05-20 00:49:07 +00:00
7cbfa4462f
fix rdar://7986634 - match instruction opcodes case insensitively.
...
llvm-svn: 104183
2010-05-19 23:34:33 +00:00
feedc90c57
Implement EmitTBSSSymbol for MachOStreamer.
...
Fixes build failure as well.
llvm-svn: 104059
2010-05-18 21:26:41 +00:00
5c87be766d
Make EmitTBSSSymbol take a section argument so that we can find it later.
...
Fix up callers and users.
llvm-svn: 104057
2010-05-18 21:16:04 +00:00
7bcc9e9450
Incorporate Daniel's suggestion and use !isdigit(CurPtr[0]) and not
...
CurPtr[0] == '\n' when testing the character after a "0b" when looking
to see if it part of a something like "jmp 0b".
llvm-svn: 104039
2010-05-18 18:09:20 +00:00
53e0631516
Fixed the problem with a branch to "0b" that was not parsed by llvm-mc
...
correctly. The Lexer was incorrectly eating the newline casusing it to branch
to address 0. Updated the test case to use a "0:" label and a branch to "0b".
llvm-svn: 104038
2010-05-18 17:51:35 +00:00
d5563f420a
MC/Mach-O: Implement support for setting indirect symbol table offset in section header.
...
Also, create symbol data for LHS of assignment, to match 'as' symbol ordering better.
llvm-svn: 104033
2010-05-18 17:28:24 +00:00
f16c12d7a1
MC/Mach-O: Remove some FIXMEs.
...
llvm-svn: 104032
2010-05-18 17:28:20 +00:00
39617bb08a
MC/Mach-O: Fail faster/harder when we see .file, which isn't yet supported.
...
llvm-svn: 104031
2010-05-18 17:28:17 +00:00
ab7be75e3f
Simplify MCContext::(Next|Get)Instance
...
- Allocate MCLabels in the context so they don't leak.
- Avoid duplicated densemap lookup.
llvm-svn: 104020
2010-05-18 12:15:34 +00:00
0510b48fd9
Added support in MC for Directional Local Labels.
...
llvm-svn: 103989
2010-05-17 23:08:19 +00:00
9635b3da6b
More data/parsing support for tls directives. Add a few more testcases
...
and cleanup comments as well.
llvm-svn: 103985
2010-05-17 22:53:55 +00:00
bb166bed40
MC/Mach-O/x86: Optimal nop sequences should only be used for the .text sections, not all sections in the text segment.
...
llvm-svn: 103981
2010-05-17 21:54:30 +00:00
ce5e1bb326
MC: Add dyn_cast support to MCSection.
...
- Of questionable utility, since in general anything which wants to do this should probably be within a target specific hook, which can rely on the sections being of the appropriate type. However, it can be useful for short term hacks.
llvm-svn: 103980
2010-05-17 21:54:26 +00:00
b7b796cc11
MC/Mach-O: Reverse order of SymbolData scanning when emitting instructions.
...
- This fixes a string table mismatch with 'as' when two new symbols are defined
in a single instruction.
llvm-svn: 103979
2010-05-17 21:19:59 +00:00
bf79238599
Add some section and constant support for darwin TLS.
...
llvm-svn: 103974
2010-05-17 21:02:07 +00:00
0211a96989
MC/Mach-O: Fix some differences in symbol flag handling.
...
- Don't clear weak reference flag, 'as' was only "trying" to do this, it wasn't
actually succeeding.
- Clear the "lazy bound" bit when we mark something external. This corresponds
roughly to the lazy clearing of the bit that 'as' implements in
symbol_table_lookup.
- The exact meaning of these flags appears pretty loose, since 'as' isn't very
consistent. For now we just try to match 'as', we will clean this up one day
hopefully.
llvm-svn: 103964
2010-05-17 20:12:31 +00:00
9b4a824217
llvm-mc: Support reassignment of variables in one special case, when the
...
variable has not yet been used in an expression. This allows us to support a few
cases that show up in real code (mostly because gcc generates it for Objective-C
on Darwin), without giving up a reasonable semantic model for assignment.
llvm-svn: 103950
2010-05-17 17:46:23 +00:00
68b1bbe66a
Assume that we'll handle mangling the symbols earlier and just put the
...
symbol to the file as we have it. Simplifies out tbss handling.
llvm-svn: 103928
2010-05-17 02:13:02 +00:00
2493ddfe42
MC/Mach-O/x86_64: Darwin's special "signed_N" relocation types should only be
...
used to replace a normal relocation, not a reference to a GOT entry.
llvm-svn: 103789
2010-05-14 18:53:40 +00:00
9fb6bb07ca
Add AsmParser support for darwin tbss directive.
...
Nothing uses this yet.
llvm-svn: 103757
2010-05-14 01:50:28 +00:00
bc81885ff7
Fix a couple of typos.
...
llvm-svn: 103756
2010-05-14 01:38:54 +00:00
4bce748aa2
MC: Switch to completely lazy layout.
...
- The eliminates the last major algorithmic problem with MC.
llvm-svn: 103754
2010-05-14 00:51:14 +00:00
9abade1017
MC: Extend MCAsmLayout to explicitly track which fragments have been layed out, and enforce several invariants to LayoutFragment to ensure we only do layout in a sensible order.
...
llvm-svn: 103753
2010-05-14 00:37:21 +00:00
3eedc26e18
MC: Implicitly assign section addresses when the previous fragment is layed out.
...
llvm-svn: 103752
2010-05-14 00:37:17 +00:00
8f9d2266e6
MC: Switch MCFragment to storing the layout order index, not its index in the file.
...
llvm-svn: 103751
2010-05-14 00:37:14 +00:00
a99a23b061
MC: Change LayoutSection() to only do the section initializiation.
...
Also, elimminate MCAsmLayout::set*, which are no longer needed.
llvm-svn: 103750
2010-05-14 00:37:11 +00:00
b9f6ac094a
MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile().
...
llvm-svn: 103738
2010-05-13 20:40:12 +00:00
454ea716a3
MC: Factor out MCAssembler::ComputeFragmentSize.
...
llvm-svn: 103724
2010-05-13 18:35:06 +00:00
484c6fc825
MC: Add section layout order indices to MCSectionData.
...
llvm-svn: 103715
2010-05-13 15:17:26 +00:00
aa8bd69886
MC: Move ordinal calculation, to make sure fragments synthesized for layout get assigned ordinals properly.
...
llvm-svn: 103711
2010-05-13 08:43:37 +00:00
e73353c720
MC: Create dummy fragments to avoid ever having empty sections, which simplifies layout.
...
llvm-svn: 103710
2010-05-13 08:43:34 +00:00
e8845ef4db
MC: Add MCAsmLayout::FragmentReplaced() helper function.
...
llvm-svn: 103709
2010-05-13 08:43:31 +00:00
5a93253fc8
Fix -Asserts warning.
...
llvm-svn: 103697
2010-05-13 03:50:50 +00:00
d83889bd87
MC: Eliminate MCSectionData::{,Address,File}Size, which can now be computed by
...
utility functions.
llvm-svn: 103695
2010-05-13 03:19:50 +00:00
c7c53ea715
MC: Switch to using explicit MCAlignFragments with OnlyAlignAddress bit instead
...
of manually doing padding/editing layout in LayoutSection().
- This probably seems like six-of-one and half-dozen of another, but there
is a method to my madness.
llvm-svn: 103693
2010-05-13 02:34:14 +00:00
a6780da661
MC: Add MCAlignFragment::OnlyAlignAddress bit. This is a bit of magic that says the align fragment shouldn't contribute to the logical section size, it is will be used for cleaning up the code to handle section alignment.
...
llvm-svn: 103690
2010-05-13 01:10:26 +00:00
4dac59dcb7
MC: Add MCSectionData::AddressSize, which is the size of the address space consumed by the section. This can differ from both the section logical size, and the section size on disk (although the current code handles this without making an explicit distinction).
...
llvm-svn: 103689
2010-05-13 01:10:22 +00:00
8cb4728a15
fix rdar://7965971 and a fixme: use ParseIdentifier in
...
ParseDirectiveDarwinZerofill instead of hard coding the
check for identifier. This allows quoted symbol names to
be used.
llvm-svn: 103682
2010-05-13 00:10:34 +00:00
b76df22a2e
MC: Move MCAlignFragment::EmitNops value out of the constructor.
...
llvm-svn: 103665
2010-05-12 22:56:23 +00:00
4405ffc688
MC: Eliminate MCZeroFillFragment, it is no longer needed.
...
llvm-svn: 103664
2010-05-12 22:51:38 +00:00
7cd309f7dc
MC: Explicitly check that only virtual fragments appear in virtual sections.
...
llvm-svn: 103663
2010-05-12 22:51:35 +00:00
597eb48168
MC: Switch MCFillFragment to storing total fill size instead of a count. This allows using ValueSize==0 to represent a virtual fill.
...
llvm-svn: 103662
2010-05-12 22:51:32 +00:00
51402b79e4
MC: Drop support for alignment in ZeroFill fragment, we can just use
...
MCAlignFragments for this.
llvm-svn: 103661
2010-05-12 22:51:27 +00:00
7d73564b82
Simplify.
...
llvm-svn: 103651
2010-05-12 21:47:55 +00:00
a7cc32a7b6
MC: Factor out MCAssembler::LayoutFragment
...
llvm-svn: 103649
2010-05-12 21:35:25 +00:00
2abec791f1
MC: Tweak section layout to not relying on accumulating address value.
...
llvm-svn: 103648
2010-05-12 21:35:22 +00:00
a11479eb49
MC: Simplify LayoutSection to just take the index of the section to layout.
...
llvm-svn: 103627
2010-05-12 17:56:47 +00:00
e02c1f6834
MC: Track section layout order explicitly, and use to simplify.
...
llvm-svn: 103616
2010-05-12 15:42:59 +00:00
d2de49ddda
stylistic change to MCSectionCOFF::PrintSwitchToSection COMDAT handling
...
Made a stylistic changed to the code/comments related to the unsupported COMDAT selection type IMAGE_COMDAT_SELECT_LARGEST based on from Anton Korobeynikov.
llvm-svn: 103590
2010-05-12 07:36:03 +00:00
b69c7b76f1
Add support for movi32 of global values to the new (MC) asm printer.
...
llvm-svn: 103576
2010-05-12 05:16:34 +00:00
76a07580ad
updated support for the COFF .linkonce
...
Now, the .linkonce directive is emitted as part of MCSectionCOFF::PrintSwitchToSection instead of AsmPrinter::EmitLinkage since it is an attribute of the section the symbol was placed into not the symbol itself.
llvm-svn: 103568
2010-05-12 04:26:09 +00:00
ba2f4c3884
MC/Mach-O/x86_64: Add a new hook for checking whether a particular section can
...
be diced into atoms, and adjust getAtom() to take this into account.
- This fixes relocations to symbols in fixed size literal sections, for
example.
llvm-svn: 103532
2010-05-12 00:38:17 +00:00
53ce0e12d8
MC/Mach-O/x86_64: Fix PCrel adjustment for x86_64, which was using the fixup
...
offset instead of the fixup address as intended.
llvm-svn: 103527
2010-05-11 23:53:11 +00:00
7c6f0e3827
MC/Mach-O: As Kevin pointed out, 'Address' is really an offset -- rename to clarify.
...
llvm-svn: 103526
2010-05-11 23:53:07 +00:00
795baa1972
MC/Mach-O: Fix a crash on invalid.
...
llvm-svn: 103525
2010-05-11 23:53:05 +00:00
3937e28da0
MC/Mach-O x86_64: Switch to using fragment atom symbol.
...
- This eliminates getAtomForAddress() (which was a linear search) and
simplifies getAtom().
- This also fixes some correctness problems where local labels at the same
address as non-local labels could be assigned to the wrong atom.
llvm-svn: 103480
2010-05-11 17:22:50 +00:00
75778984f9
MC/Mach-O: Fix another mismatch with .weak_definition, we shouldn't use a
...
scattered relocation entry with a .weak_definition.
llvm-svn: 103443
2010-05-10 23:15:20 +00:00
7de3106a89
MC/Mach-O: Factor out doesSymbolRequireExternRelocation.
...
llvm-svn: 103442
2010-05-10 23:15:13 +00:00
aadb2cac49
MC/Mach-O: Explicitly track atoms, as represented by their defining symbol, for each fragment (not yet used).
...
llvm-svn: 103438
2010-05-10 22:45:09 +00:00
da7d01404d
test commit, added a comment to MCSectionCOFF::PrintSwitchToSection function
...
llvm-svn: 103372
2010-05-09 05:49:00 +00:00
72afa956db
break coff symbol definition stuff out into proper MCStreamer callbacks,
...
patch by Nathan Jeffords!
llvm-svn: 103346
2010-05-08 19:54:22 +00:00
028449325b
add COFF support for COMDAT sections, patch by Nathan Jeffords!
...
llvm-svn: 103304
2010-05-07 21:49:09 +00:00
51bed9c870
Fix i386 relocations to Weak Definitions. The relocation entries should be
...
external and the item to be relocated should not have the address of the
symbol added in.
llvm-svn: 103302
2010-05-07 21:44:23 +00:00
58a0bd48ad
Update CMake build.
...
llvm-svn: 103269
2010-05-07 17:29:48 +00:00
87cffa9498
switch MCSectionCOFF from a syntactic to semantic representation,
...
patch by Peter Housel!
llvm-svn: 103267
2010-05-07 17:17:41 +00:00
b0ceb764b8
Revert r103137, fix for $ in labels. It looks like we can't actually handle this
...
at the token level. Consider the following horrible test case:
a = 1
.globl $a
movl ($a), %eax
movl $a, %eax
movl $$a, %eax
llvm-svn: 103178
2010-05-06 14:46:38 +00:00
482fa218d4
fix rdar://7946934 - in some limited cases, the assembler should
...
allow $ at the start of a symbol name.
llvm-svn: 103137
2010-05-05 23:51:28 +00:00
f3a53baf00
MC/Mach-O: Mark absolute variable's appropriately, and add Mach-O support for
...
writing them.
- <rdar://problem/7885351> integrated assembler broken for i386 objc code
llvm-svn: 103112
2010-05-05 19:01:05 +00:00
deb7ba9cc0
MC: Reject attempts to define a variable symbol.
...
llvm-svn: 103111
2010-05-05 19:01:00 +00:00
8557426958
MC: Make setVariableValue check the redefinition condition a bit more strongly.
...
llvm-svn: 103110
2010-05-05 19:00:56 +00:00
7a989da0af
MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue.
...
llvm-svn: 103095
2010-05-05 17:41:00 +00:00
027fa5f31c
MC/Mach-O/x86_64: Relocations in debug sections should use local relocations
...
when possible.
- <rdar://problem/7934873>
llvm-svn: 103092
2010-05-05 17:22:39 +00:00
ce0c1e11ce
llvm-mc: Fix case were we would skip a line in the .s file after an instruction
...
match failure.
Also, fixes a few memory leak FIXMEs.
llvm-svn: 102986
2010-05-04 00:33:07 +00:00
b0a0a26df1
Add support for assemblers that don't support periods in a name
...
llvm-svn: 102594
2010-04-29 04:00:56 +00:00
926885c090
refactor .if handling code a bit.
...
llvm-svn: 101659
2010-04-17 18:14:27 +00:00
6b55cb9cd8
implement mc asmparser support for '.', which gets the
...
current PC. rdar://7834775
We now produce an identical .o file compared to the cctools
assembler for something like this:
_f0:
L0:
jmp L1
.long . - L0
L1:
jmp A
.long . - L1
.zerofill __DATA,_bss,A,0
llvm-svn: 101227
2010-04-14 04:40:28 +00:00
5418dd5fda
move elf section uniquing to MCContext. Along the way
...
merge XCore's section into MCSectionELF
llvm-svn: 100812
2010-04-08 21:26:26 +00:00
2073112fc0
move macho section uniquing from MCParser and TLOF to MCContext where
...
the compiler and asmparser now unique to the same sections. This fixes
rdar://7835021.
llvm-svn: 100807
2010-04-08 20:30:37 +00:00
53dd088b58
Various MSVC warning fixes about truncated 64 bit shifts and const pointers passed to free.
...
llvm-svn: 100767
2010-04-08 15:25:57 +00:00
2104b8d36e
rename llvm::llvm_report_error -> llvm::report_fatal_error
...
llvm-svn: 100709
2010-04-07 22:58:41 +00:00
3b21e4d404
Give AsmParser an option to control whether it finalizes
...
the stream. New demo:
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000 subq $0x08,%rsp
0000000000000004 movl %edi,(%rsp)
0000000000000007 movl %edi,%eax
0000000000000009 incl %eax
000000000000000b movl %eax,(%rsp)
000000000000000e movl %eax,0x04(%rsp)
0000000000000012 addq $0x08,%rsp
0000000000000016 ret
llvm-svn: 100492
2010-04-05 23:15:42 +00:00
324c86600d
eliminate the magic AbsoluteDebugSectionOffsets MAI hook,
...
which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.
Yay for reduction in magic.
llvm-svn: 100367
2010-04-04 23:22:29 +00:00
e239fa05cd
isAbsoluteEHSectionOffsets always returns false, eliminate it
...
and substitute false at the one call site.
llvm-svn: 100354
2010-04-04 21:29:44 +00:00
7012916275
fix an ugly wart in the MCInstPrinter api where the
...
raw_ostream to print an instruction to had to be specified
at MCInstPrinter construction time instead of being able
to pick at each call to printInstruction.
llvm-svn: 100307
2010-04-04 05:04:31 +00:00
1716721df1
add a twine form of MCStreamer::EmitRawText, and mc'ize
...
a few more things in AsmPrinter.cpp.
llvm-svn: 100294
2010-04-03 22:12:35 +00:00
aca014e24e
allow attaching comments to raw text.
...
llvm-svn: 100292
2010-04-03 22:06:56 +00:00
6ec72d2e8f
add <cstdlib> header for abort() on linux builders.
...
llvm-svn: 100290
2010-04-03 21:48:59 +00:00
8a87fb7633
add a new EmitInlineAsm function to asmprinter to handle inline asm.
...
If we have an MCAsmStreamer, we continue to emit asm textually,
otherwise we (currently) emit an error to errs and ignore it.
llvm-svn: 100289
2010-04-03 21:35:55 +00:00
9897043928
Rip out the 'is temporary' nonsense from the MCContext interface to
...
create symbols. It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.
This fixes rdar://7807601.
llvm-svn: 99902
2010-03-30 18:10:53 +00:00
c95156262d
MC/Mach-O/x86_64: Support @GOTPCREL on symbols, even for non-PCrel relocations!
...
llvm-svn: 99853
2010-03-29 23:56:40 +00:00
d821f4ac60
llvm-mc: Add a -mc-relax-all option, which relaxes every fixup. We always need
...
exactly two passes in that case, and don't ever need to recompute any layout,
so this is a nice baseline for relaxation performance.
llvm-svn: 99563
2010-03-25 22:49:09 +00:00
6432bd744e
MC: Stop restarting layout on every relaxation.
...
- Still O(N^2), just a faster form, and now its the MCAsmLayout's fault.
On the .s I am tuning against (combine.s from 403.gcc):
--
ddunbar@lordcrumb:MC$ diff stats-before.txt stats-after.txt
5,10c5,10
< 1728 assembler - Number of assembler layout and relaxation steps
< 7707 assembler - Number of emitted assembler fragments
< 120588 assembler - Number of emitted object file bytes
< 2233448 assembler - Number of evaluated fixups
< 1727 assembler - Number of relaxed instructions
< 6723845 mcexpr - Number of MCExpr evaluations
---
> 3 assembler - Number of assembler layout and relaxation steps
> 7707 assembler - Number of emitted assembler fragments
> 120588 assembler - Number of emitted object file bytes
> 14796 assembler - Number of evaluated fixups
> 1727 assembler - Number of relaxed instructions
> 67889 mcexpr - Number of MCExpr evaluations
--
Feel free to LOL at the -before numbers, if you like.
I am a little surprised we make more than 2 relaxation passes. It's pretty
trivial for us to do relaxation out-of-order if that would give a speedup.
llvm-svn: 99543
2010-03-25 19:35:56 +00:00
0ba6a671d4
MC: Simplify main section layout process by moving alignment into LayoutSection.
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llvm-svn: 99529
2010-03-25 18:16:42 +00:00
25d114b2b2
MC: Sink Section address assignment into LayoutSection.
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llvm-svn: 99528
2010-03-25 18:16:38 +00:00
951459740c
MC/Mach-O: Switch to MCSectionData::getOrdinal.
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llvm-svn: 99504
2010-03-25 08:08:54 +00:00
4108802628
MC: Explicity track section and fragment ordinals.
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llvm-svn: 99500
2010-03-25 07:10:11 +00:00
eaa792f0d9
Fix -Asserts warning.
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llvm-svn: 99499
2010-03-25 07:10:05 +00:00
5b07334c0d
MC: Route access to SectionData offset and file size through MCAsmLayout.
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llvm-svn: 99474
2010-03-25 02:00:07 +00:00
2522dd1c49
MC: Route access to Fragment offset and effective size through MCAsmLayout.
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llvm-svn: 99473
2010-03-25 02:00:02 +00:00
5d98824615
MC: Eliminate MC{Fragment,{Section,Symbol}Data}::getAddress.
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llvm-svn: 99467
2010-03-25 01:03:24 +00:00
5caf2ff561
MC: Fix refacto in MCExpr evaluation, I mistakenly replaced a fragment address with a symbol address.
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- This fixes the integrated-as nightly test regressions.
llvm-svn: 99466
2010-03-25 01:03:17 +00:00
7c969558d9
MC: Direct all {fragment,section,symbol} address access through the MCAsmLayout object.
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llvm-svn: 99380
2010-03-24 03:43:40 +00:00
5376c2a431
MC: Sprinkle in some more interesting statistics.
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llvm-svn: 99350
2010-03-23 23:47:14 +00:00
5cfb58719d
llvm-mc: Fast path EvaluateAbsolute of constants.
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llvm-svn: 99348
2010-03-23 23:47:07 +00:00
de04b3f62c
MC: Switch to using MCInst fragments to do relaxation.
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Also, both MCMachOStreamer and MCAssembler are now target independent!
llvm-svn: 99256
2010-03-23 05:09:03 +00:00
86face8333
MC: Add TargetAsmBackend::MayNeedRelaxation, for checking whether a particular instruction + fixups might need relaxation.
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llvm-svn: 99249
2010-03-23 03:13:05 +00:00
a9ae3ae698
MC: Add TargetAsmBackend::WriteNopData and use to eliminate some target dependencies in MCMachOStreamer and MCAssembler.
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llvm-svn: 99248
2010-03-23 02:36:58 +00:00
16cbe95dd6
MC: Tweak MCInstFragment to include the encoded data and fixups, so that we don't need to recompute them during relaxation. I will revisit this once all the other pieces of fast relaxation are in place.
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llvm-svn: 99244
2010-03-23 01:39:05 +00:00
a99d232803
Put MCSectionCOFF::Name into the MCContext instead of leaking it.
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llvm-svn: 99231
2010-03-22 23:26:12 +00:00
b31c49a70d
MC: Add MCInstFragment, not used yet.
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llvm-svn: 99229
2010-03-22 23:16:48 +00:00
a75f01a905
Add a FIXME.
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llvm-svn: 99228
2010-03-22 23:16:43 +00:00
fdc7ccc4e4
MC: Fix a few more cases we were passing an MCDataFragment when a MCFragment would do, and sprinkle in some const.
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llvm-svn: 99218
2010-03-22 21:49:41 +00:00
20ea02fde2
Simplify.
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llvm-svn: 99217
2010-03-22 21:49:38 +00:00
04047fbe14
MCInst: Add ::dump_pretty.
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llvm-svn: 99216
2010-03-22 21:49:34 +00:00
a0ab4bf989
MC: Change MCObjectWriter::RecordRelocation to take an MCFragment (instead of a MCDataFragment). Object files should only need the generic MCFragment features.
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llvm-svn: 99205
2010-03-22 20:35:50 +00:00
f1f1827bfa
MC/Mach-O: Factor out getOrCreateDataFragment().
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llvm-svn: 99204
2010-03-22 20:35:46 +00:00
9213355a91
MC: Eliminate MCFragment::getMaxFileSize.
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llvm-svn: 99203
2010-03-22 20:35:43 +00:00
32ffc58ca9
MC: Share the MCAsmLayout object, although its still not used for anything important.
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llvm-svn: 99202
2010-03-22 20:35:35 +00:00
5ea5fab22b
Better fix for r98994, MachObjectWriterImpl wasn't intended to be virtual.
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llvm-svn: 99031
2010-03-20 01:58:40 +00:00
07b4f8cd4b
Fix -Wnon-virtual-dtor warning.
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llvm-svn: 98994
2010-03-19 21:26:46 +00:00
1a81ad3559
MC/Mach-O/x86_64: Add relocation support.
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- This is "extraordinarily" Darwin 'as' compatible. See the litany of FIXMEs littered about for more information.
- There are a few cases which seem to clearly be 'as' bugs which I have left unsupported, and there is one cases where we diverge but should fix if it blocks diffing .o files (Darwin 'as' ends up widening a jump unnecessarily).
- 403.gcc build, runs, and diffs equivalently to the 'as' built version now (using llvm-mc). However, it builds so slowly that I wouldn't recommend trying it quite yet. :)
llvm-svn: 98974
2010-03-19 18:07:55 +00:00
4d7c8645fd
MC: Add TargetAsmBackend::createObjectWriter.
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- MCAssembler is now object-file independent, although we will surely need more work to fully support ELF/COFF.
llvm-svn: 98955
2010-03-19 10:43:26 +00:00
eaa367f5ae
MCCodeEmitter: Add target independent fixup flag for is-pc-relative.
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llvm-svn: 98954
2010-03-19 10:43:23 +00:00
1bd7171c95
MC: Sink code emitter into MCAssembler.
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llvm-svn: 98953
2010-03-19 10:43:18 +00:00
79e0e5a631
MC/Mach-O: Move to MachObjectWriter.{h,cpp}.
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llvm-svn: 98952
2010-03-19 10:43:15 +00:00
c5084cccc8
MC: Add TargetAsmBackend::isVirtualSection hook.
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llvm-svn: 98950
2010-03-19 09:29:03 +00:00
f027abf7de
MC: Split MCObjectWriter out of MCAssembler.cpp.
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llvm-svn: 98949
2010-03-19 09:28:59 +00:00
49e5a8ac2a
MCAssembler: Pull out MCObjectWriter class.
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llvm-svn: 98948
2010-03-19 09:28:55 +00:00
f0517efc6c
MCAssembler: Move ApplyFixup to the TargetAsmBackend, this is a target specific not object writer specific task.
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llvm-svn: 98947
2010-03-19 09:28:12 +00:00
3cab275783
MC/Mach-O: Lift the fixup evaluation and application up (to the same place), and eliminate MCAsmFixup::FixedValue.
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llvm-svn: 98944
2010-03-19 07:09:47 +00:00
d84d196a86
MC/Mach-O: Factor out ExecutePostLayoutBinding, to separate the post-layout changes the object writer may need to make to the assembler from the actual .o writing.
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llvm-svn: 98943
2010-03-19 07:09:33 +00:00
563d40eda6
MC/Mach-O: Lift relocation emission logic a bit higher to separate evaluation / relocation handling from the actual .o writing.
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llvm-svn: 98942
2010-03-19 07:09:18 +00:00
90a7859ebc
fix an MCInstPrinter leak that jyasskin pointed out:
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createAsmStreamer now takes ownership of the instprinter.
llvm-svn: 98939
2010-03-19 05:48:53 +00:00
0f7fbb3d00
MC/Mach-O: Add isScatteredFixupFullyResolved, which implements the correct algorithm (used on x86_64) for determining whether an evaluated fixup is fully resolved (doesn't need relocation).
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- Test cases will follow, once we have x86_64 relocation support.
llvm-svn: 98926
2010-03-19 03:18:18 +00:00
6e13bb07fb
MC/Mach-O/x86_64: Add getAtom[ForAddress].
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- These find the defining symbol which identifies the containing atom for a symbol or address. They are currently very slow, but will be eliminated eventually.
llvm-svn: 98925
2010-03-19 03:18:15 +00:00
5ec4bdd1b3
MC/Mach-O: Factor out isScatteredFixupFullyResolvedSimple predicate, and fix some corner cases.
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llvm-svn: 98924
2010-03-19 03:18:12 +00:00
c558ec211f
MC/Mach-O: Factor out isSymbolLinkerVisible method; "linker visible" is a made up term to refer to non-temporary labels + temporary labels in sections-which-require symbols. For Darwin, it corresponds to symbols which effectively define an atom.
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llvm-svn: 98923
2010-03-19 03:18:09 +00:00
9c64ec0a7e
MCValue: Change to holding MCSymbolRefExprs instead of MCSymbols, we will need this for accessing to symbol modifiers.
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llvm-svn: 98791
2010-03-18 00:59:10 +00:00
6544baff6f
MC/Darwin: Add a new target hook for whether the target uses "reliable" symbol differences, basically whether the assembler should attempt to understand atoms when using scattered symbols.
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Also, avoid some virtual call overhead.
llvm-svn: 98789
2010-03-18 00:58:53 +00:00
aed00fa039
fix GetOrCreateTemporarySymbol to require a name, clients
...
should use CreateTempSymbol() if they don't care about the
name.
llvm-svn: 98712
2010-03-17 05:41:18 +00:00
5599256415
MC: Allow modifiers in MCSymbolRefExpr, and eliminate X86MCTargetExpr.
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- Although it would be nice to allow this decoupling, the assembler needs to be able to reason about MCSymbolRefExprs in too many places to make this viable. We can use a target specific encoding of the variant if this becomes an issue.
- This patch also extends llvm-mc to support parsing of the modifiers, as opposed to lumping them in with the symbol.
llvm-svn: 98592
2010-03-15 23:51:06 +00:00
fe8d866fc7
MC/Mach-O/x86_64: Temporary labels in cstring sections require symbols (and external relocations, but we don't have x86_64 relocations yet).
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llvm-svn: 98583
2010-03-15 21:56:50 +00:00
232dc953ac
MC/Mach-O: Add MCSectionMachO::getType()
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llvm-svn: 98582
2010-03-15 21:56:38 +00:00
133487696a
fix a memory leak yjasskin pointed out: MCSymbol is bump pointer
...
allocated and thus not freed. This is cool except that it contains
and std::string so the string data didn't get freed. In any case
there is no reason to redundantly store the string data in the
MCSymbol anyway, just make the MCSymbol ref the string data in the
MCContext StringMap.
llvm-svn: 98536
2010-03-15 06:15:35 +00:00
073d817958
add a new CreateTempSymbol method, the use case for
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CreateTempSymbol vs GetOrCreateTemporarySymbol are
completely different.
llvm-svn: 98486
2010-03-14 08:23:30 +00:00
aa8f95eb56
MC: Fix a crash on invalid, attempting to evaluate undefined symbols.
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llvm-svn: 98464
2010-03-14 03:10:40 +00:00
7c1f3d8cad
MC/X86_64: Symbol support.
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llvm-svn: 98456
2010-03-13 22:49:35 +00:00
56597588f0
MC/Mach-O: Initial x86_64 support.
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llvm-svn: 98454
2010-03-13 22:10:17 +00:00
341b1d25f1
add a hack to allow parsing negative minint. rdar://7751341
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llvm-svn: 98442
2010-03-13 19:25:13 +00:00
34b8e553ea
MC/Mach-O: PCrel relocations weren't using the right base address, they are
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relative to the fragment address, not its offset. This was masked by the text
section normally being at address 0.
llvm-svn: 98420
2010-03-13 02:38:00 +00:00
322fec671b
llvm-mc: Support -n, useful for comparing -integrated-as output since the
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compiler may not lead with the text section.
llvm-svn: 98418
2010-03-13 02:20:57 +00:00
12f1e32d59
MC/Mach-O: Implement initial support for relaxation.
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- The implementation is currently very brain dead and inefficient, but I have a
clear plan on how to fix it.
- The good news is, it works and correctly assembles 403.gcc (when built with
Clang, at '-Os', '-Os -g', and '-O3'). Even better, at '-Os' and '-Os -g',
the resulting binary is exactly equivalent to that when built with the system
assembler. So it probably works! :)
llvm-svn: 98396
2010-03-12 22:07:14 +00:00
8d99c764d3
move fastcall/stdcall mangling up into Mangler.
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llvm-svn: 98384
2010-03-12 21:03:47 +00:00
ea9e2f8a15
MC: Factor out MCAssembler::EvaluateFixup, and simplify.
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llvm-svn: 98381
2010-03-12 21:00:49 +00:00
968b36a0bd
MC: Constify MCAsmLayout argument to MCExpr::EvaluteAs...
...
llvm-svn: 98380
2010-03-12 21:00:45 +00:00
921e79f5eb
MC: Add MCAssembler::addFixup, which enforces that fixups are added in order.
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llvm-svn: 98379
2010-03-12 21:00:38 +00:00
ac77bf5d1e
remove MAI argument from createAsmStreamer since it
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can get it from the context now.
llvm-svn: 98361
2010-03-12 18:28:53 +00:00
d3691dd04b
enhance MCContext::GetOrCreateTemporarySymbol() to create a new symbol
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with an arbitrary unique name.
llvm-svn: 98294
2010-03-11 22:56:10 +00:00
768ea2add2
change MCContext to always have an MCAsmInfo.
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llvm-svn: 98293
2010-03-11 22:53:35 +00:00
216e7299d7
empty symbols aren't possible, the mcsymbol ctor aborts on them.
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llvm-svn: 98288
2010-03-11 21:38:58 +00:00
64b408b124
MC/Mach-O: Add MCSymbolData::getAddress() utility.
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llvm-svn: 98266
2010-03-11 18:22:51 +00:00
5c5228a8f6
MC/Mach-O: Implement "absolutizing" semantics of .set, by evaluating the assembly time value of variables.
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llvm-svn: 98241
2010-03-11 05:53:37 +00:00
cf55f96214
MC/Mach-O: Start passing in the basic MCAsmLayout object.
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- Also, drop the current location part of AsmLayout, I think I prefer to implement this via explicit symbols.
llvm-svn: 98240
2010-03-11 05:53:33 +00:00
ac8a95498a
MC: Sketch initial MCAsmLayout class, which encapsulates the current layout of an assembly file. The MCAsmLayout is also available for use by MCExpr::EvaluateAs{Absolute,Relocatable}, to allow target specific hooks and "absolutizing" of symbols.
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llvm-svn: 98227
2010-03-11 02:28:59 +00:00
c5ddbad237
MC: Provide MCAssembler with a TargetAsmBackend.
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llvm-svn: 98222
2010-03-11 01:34:27 +00:00
dc765e9f03
MC/Mach-O: Use the MCAssembler symbol map instead of reconstructing.
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llvm-svn: 98187
2010-03-10 20:58:31 +00:00
6eab721011
MC: Move the backend section and symbol data maps to MCAssembler.
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llvm-svn: 98186
2010-03-10 20:58:29 +00:00
7e3283c055
Remove unneeded includes.
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llvm-svn: 98167
2010-03-10 17:56:05 +00:00
71c30c164f
move three lowering hooks from MAI to TLOF and make one of them
...
semantic instead of syntactic. This completes MCization of
darwin/x86[-64]!
llvm-svn: 98145
2010-03-10 07:20:42 +00:00
ac2361a9b0
set the temporary bit on MCSymbols correctly.
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llvm-svn: 98124
2010-03-10 02:25:11 +00:00
46ed804180
MC/Mach-O: Resolve a FIXME; these relocation types are no longer semanticaly different.
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llvm-svn: 98120
2010-03-10 02:10:29 +00:00
b973ea88b5
eliminate MCContext::CreateSymbol and CreateTemporarySymbol.
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Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.
llvm-svn: 98118
2010-03-10 01:29:27 +00:00
27b984ac85
MC/Mach-O: Use the SECTDIFF relocation type for (A - B + constant) where A is external.
...
- I'm not sure why, but this is what 'as' does.
llvm-svn: 98115
2010-03-10 00:58:25 +00:00
aab52840af
make the NullStreamer set the section on a label when emitted so that isDefined() works.
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llvm-svn: 98100
2010-03-09 23:12:18 +00:00
3dde457b94
MC/Mach-O: For PCrel relocations, we need to compensate for the PCrel adjustment when determining if we need a scattered relocation.
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llvm-svn: 98082
2010-03-09 21:27:58 +00:00
d49794e703
MC/Mach-O: Also set the PCrel bit in the second half of paired relocation entries.
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llvm-svn: 98081
2010-03-09 21:27:47 +00:00
4680000b27
MC/Mach-O: Don't generate relocations for PCrel fixups to local labels.
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llvm-svn: 98080
2010-03-09 21:27:30 +00:00
cb01210eca
MC/Mach-O: Tweak .dump() formatting.
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llvm-svn: 98028
2010-03-09 01:12:23 +00:00
97d64717c4
MC/Mach-O: Don't adjust section sizes when aligning zero fill sections, just pad the address.
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llvm-svn: 98027
2010-03-09 01:12:20 +00:00
b14490d912
add a EmitSymbolValue convenience method to MCStreamer.
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llvm-svn: 98017
2010-03-09 00:39:24 +00:00
3a3f472cb4
MC/Macho-O: Align the zerofill section itself to the maximum alignment.
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llvm-svn: 97991
2010-03-08 22:03:42 +00:00
6622fe7873
MC/Mach-O: Fix address compution for zero fill sections.
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llvm-svn: 97984
2010-03-08 21:10:42 +00:00
c6ac7940d9
MC/Mach-O: Error out instead of crashing on invalid scattered relocation expressions.
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llvm-svn: 97983
2010-03-08 21:10:39 +00:00
bb592eb9d0
pass in more section kinds, enough to get the .align 0x90
...
stuff to emit optimal nops in the right places.
llvm-svn: 97233
2010-02-26 18:32:26 +00:00
7f99302dc9
This is a patch to the assembler frontend to detect when aligning a text
...
section with TextAlignFillValue and calls EmitCodeAlignment() instead of
calling EmitValueToAlignment(). This allows x86 assembly code to be aligned
with optimal nops.
llvm-svn: 97158
2010-02-25 18:46:04 +00:00
c26ddccf38
This is the second patch to allow x86 code to be aligned with optimal nops.
...
With the compiler changed to use EmitCodeAlignment() it does change the
functionality. But X86 assembly code assembled with llvm-mc does not change
its output. For that we will eventually change the assembler frontend to
detect a '.align x, 0x90' when used in a section that 'hasInstructions' and use
EmitCodeAlignment, but will wait until we have better target hooks.
llvm-svn: 96988
2010-02-23 21:41:24 +00:00
eebaf6a76f
genericize MCAsmStreamer::EmitCodeAlignment to support other targets
...
so that it doesn't break them when the code generator starts using it.
llvm-svn: 96966
2010-02-23 18:44:31 +00:00
Rafael Espindola