Rafael Espindola
179821ac1f
Remove the instruction fragment to data fragment lowering since it was causing
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freed data to be read. I will open a bug to track it being reenabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121028 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 19:08:48 +00:00
Rafael Espindola
0bbe0b440e
Second try at making direct object emission produce the same results
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as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121006 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 17:27:56 +00:00
Rafael Espindola
6d86492f5e
Revert previous two patches while I try to find out how to make both
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linux and darwin assemblers happy :-(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121004 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 15:35:15 +00:00
Rafael Espindola
2303c9dd69
Add an EmitAbsValue helper method and use it in cases where we want to be sure
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that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121000 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 14:53:14 +00:00
Rafael Espindola
f8803fe417
Remove the getAddress getter, initialize Ordinal in the constructor and use
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that on the ELF writer to detect a section we created.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120981 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 03:48:09 +00:00
Rafael Espindola
f3faf92636
Simplify a bit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120980 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 03:36:43 +00:00
Rafael Espindola
81d8ea5bd2
Use getSymbolOffset on the COFF writer.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120979 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 03:24:04 +00:00
Rafael Espindola
340a7a1c8f
Don't use PadSectionToAlignment on windows.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120978 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 03:03:44 +00:00
Rafael Espindola
ffd902bfb7
Add a getSymbolOffset method and use it in the ELF writer.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06 02:57:26 +00:00
Rafael Espindola
b4172fa729
Once the layout is done we don't need to keep updating which fragments are
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valid. Addresses will not change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120921 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 22:47:22 +00:00
Rafael Espindola
db74aeadcd
Remember the contents of leb and dwarfline fragments when relaxing. This avoids
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having to evaluate the expression again when writing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120920 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 21:58:52 +00:00
Rafael Espindola
5d4918dbd1
There are two reasons why we might want to use
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foo = a - b
.long foo
instead of just
.long a - b
First, on darwin9 64 bits the assembler produces the wrong result. Second,
if "a" is the end of the section all darwin assemblers (9, 10 and mc) will not
consider a - b to be a constant but will if the dummy foo is created.
Split how we handle these cases. The first one is something MC should take care
of. The second one has to be handled by the caller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120889 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 03:21:47 +00:00
Rafael Espindola
767b1be390
Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoid
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doing that if the target is darwin10 or newer.
This fixes
*) Direct object emission was producing objects without the workaround on
darwin9.
*) Assembly printing was producing objects with the workaround on linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04 00:31:13 +00:00
Rafael Espindola
a8de83c68a
First step in fixing MC. Make it clear that we are avoiding a bug in the
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darwin9 linker, what is needed to avoid it and where to get more information.
Also make the workaround simpler. Just the regular end_sequence we normally
create is more than 4 bytes.
Tested by building cctools and ld64 from darwin9 on a darwin10 system and using
those. I checked that I was able to reproduce the bootstrap failure when
the the workaround was disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 23:36:59 +00:00
Rafael Espindola
2df042cb32
Make EmitIntValue more efficient and more like what we do for leb128. The
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difference is much smaller (about 0.3s) but significant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120787 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 02:54:21 +00:00
Rafael Espindola
660b5fc4d0
Do with uleb the same trick we now do with dwarf line/address advances. This
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avoids creating leb128 fragments and speeds up the test in PR8711 to 33s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120774 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 01:19:49 +00:00
Rafael Espindola
32a006e606
Try to resolve symbol differences early, and if successful create a plain
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data fragment. This reduces the time to assemble the test in 8711 from 60s to
54s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120767 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 00:55:40 +00:00
Devang Patel
5113cdbfff
It may not be an option to skip .debug_line if there are file reference in already emitted debug info. So, for now, emit dummy line table entry to make older linker and assemblers happy. This is not a new behavior, original AsmPrinter emitted similar line table entries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120760 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03 00:10:48 +00:00
Devang Patel
ee4854faf3
Use set directive for StartMinusEndExpr.
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This is a fix for llvm-gcc-i386-darwin9 buildbot failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120742 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 21:32:30 +00:00
Rafael Espindola
76507f14ed
Add a fast path to EvaluateSymbolicAdd. This avoids computing symbol addresses
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which then avoids running EnsureValid.
This cuts the assembly time of the testcase in PR8711 from 2:50 minutes to 1
minute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120697 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 07:53:12 +00:00
Rafael Espindola
e23930543c
Move EmitValueToOffset to the ObjectStreamer.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120691 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 05:59:38 +00:00
Rafael Espindola
dedb045c32
Add EmitInstToFragment to the generic object streamer.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120690 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 05:44:06 +00:00
Rafael Espindola
6db8a9f3fa
The sections that the ELF object writer has to create are very simple and
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120683 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 03:09:06 +00:00
Devang Patel
6a13ddbd9b
If tehre are not any line entry then do not try to emit .debug_line section.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120637 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 01:17:51 +00:00
Jim Grosbach
dff84b0325
Add support for binary encoding of ARM 'adr' instructions referencing constant
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pool entries (LEApcrel pseudo). Ongoing saga of rdar://8542291.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120635 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02 00:28:45 +00:00
Rafael Espindola
6566e0a55e
Remove unused argument.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120621 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01 22:48:11 +00:00
Rafael Espindola
9f44724be0
Rename temporary symbols if they conflict with artificial symbols created
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by the assembler. This was blocking parsing any large .s produced by clang for
example.
Fixes PR8596.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120603 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01 20:46:11 +00:00
Owen Anderson
9d63d90de5
Add correct encodings for STRD and LDRD, including fixup support. Additionally, update these to unified syntax.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120589 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01 19:18:46 +00:00
Jim Grosbach
fdbdaaca2c
Fix a mised reloc rename spot.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120585 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01 19:02:26 +00:00
Jason W Kim
85fed5e0c5
ARM/MC/ELF relocation "hello world" for movw/movt.
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Lifted adjustFixupValue() from Darwin for sharing w ELF.
Test added
TODO:
refactor ELFObjectWriter::RecordRelocation more.
Possibly share more code with Darwin?
Lots more relocations...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120534 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01 02:40:06 +00:00
Michael J. Spencer
1f6efa3996
Merge System into Support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29 18:16:10 +00:00
Rafael Espindola
ec0b428398
Make EmitIntValue non virtual.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120271 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28 23:22:44 +00:00
Rafael Espindola
f7c3b75bc5
Forgot the MCPureStreamer::EmitValue in the previous commit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120270 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28 23:13:47 +00:00
Rafael Espindola
6f95023a7f
Move EmitValue to MCObjectStreamer.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120269 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28 23:08:47 +00:00
Rafael Espindola
ea4afa91eb
Fixed verson of r120245.
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Factor some duplicated code into MCObjectStreamer::EmitLabel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120248 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28 17:18:55 +00:00
Rafael Espindola
ba210243ef
Revert previous patch while I debug the darwin bootstrap failure.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120246 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28 16:22:59 +00:00
Rafael Espindola
f90a2de72c
Factor some duplicated code into MCObjectStreamer::EmitLabel.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120245 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28 15:54:36 +00:00
Rafael Espindola
3e03211625
Avoid code duplication in the many unsupported EmitGPRel32Value implementations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120243 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28 15:09:24 +00:00
Rafael Espindola
e04ed7e45f
Define generic 1, 2 and 4 byte pc relative relocations. They are common
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and at least the 4 byte one will be needed to implement the .cfi_* directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-28 14:17:56 +00:00
Daniel Dunbar
90e3e3a429
macho-dump: Add support for dumping relocation entries.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-27 13:39:48 +00:00
Daniel Dunbar
590956f24f
Fix a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-27 07:39:37 +00:00
Daniel Dunbar
7976b88d9f
Reduce nesting.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120189 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-27 05:18:48 +00:00
Daniel Dunbar
f52788f4e6
MC/Mach-O: Migrate more constants into MachOFormat.h.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120188 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-27 04:59:14 +00:00
Daniel Dunbar
821ecd7c90
MC/Mach-O: Introduce Object/MachOFormat for describing purely platform / machine
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independent information on the Mach object format, and move some stuff from
MachObjectWriter.cpp there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120186 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-27 04:19:38 +00:00
Rafael Espindola
fd46797d0d
Remove the unused TheTarget member.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120168 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-26 04:24:21 +00:00
Michael J. Spencer
326990f1eb
Fix Whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120166 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-26 04:16:08 +00:00
Rafael Espindola
6b8e4357ec
Factor some code to parseSectionFlags and fix the default type of a section.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-25 15:32:56 +00:00
Rafael Espindola
25958730df
Behave a bit more like gnu as and use the symbol (instead of the section)
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for any relocation to a symbol defined in a tls section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120121 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-24 21:57:39 +00:00
Rafael Espindola
1683fcc823
Relocate with the symbol if the relocation is of kind NTPOFF.
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Patch by David Meyer, I added the test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120104 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-24 19:23:50 +00:00
Rafael Espindola
bf8209daf8
Fix and add tests for all cases in x86 and x86_64 where gnu as implicitly
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sets the type of a symbol to STT_TLS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120100 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-24 18:51:21 +00:00