Akira Hatanaka
e67a10d54d
Add definition of MipsELFObjectWriter.
...
Patch by Reed Kotler at Mips Technologies.
llvm-svn: 140891
2011-09-30 21:55:40 +00:00
Roman Divacky
dfbecd1eb7
Introduce adjustFixupOffset that adjusts the fixup offset of a relocation.
...
This is meant to be overriden by backends. Implement an override on PowerPC
which adjusts the offset by 2 for ha16/lo16 relocation kinds. This removes
a commented out hack and enables hello world to be compiled on PowerPC.
llvm-svn: 136905
2011-08-04 19:08:19 +00:00
Rafael Espindola
d7facaf371
Add an assert to check that the Addend fits the file format.
...
llvm-svn: 136868
2011-08-04 13:05:26 +00:00
Jason W Kim
e4df09f7ba
Fix http://llvm.org/bugs/show_bug.cgi?id=10568
...
Move the reloc size assert into AsmBackend - where it is more apropos.
llvm-svn: 136855
2011-08-04 00:38:45 +00:00
Roman Divacky
11a044634a
Comment out the PPC relocation offset adjustment. It must be done differently.
...
This unbreaks some tests.
llvm-svn: 136692
2011-08-02 16:15:32 +00:00
Roman Divacky
038c1a1a73
Sketch out PowerPC ELF writer. This is enough to get clang -integrated-as
...
to compile a working hello world on FreeBSD/PPC32.
llvm-svn: 136689
2011-08-02 15:51:38 +00:00
Evan Cheng
5928e69d20
Rename TargetAsmBackend to MCAsmBackend; rename createAsmBackend to createMCAsmBackend.
...
llvm-svn: 136010
2011-07-25 23:24:55 +00:00
Evan Cheng
7e763d86ba
Refactor X86 target to separate MC code from Target code.
...
llvm-svn: 135930
2011-07-25 18:43:53 +00:00
Evan Cheng
f2596bc62a
Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong.
...
llvm-svn: 135833
2011-07-23 00:45:41 +00:00
Evan Cheng
ad5f485957
Sink ARM mc routines into MCTargetDesc.
...
llvm-svn: 135825
2011-07-23 00:00:19 +00:00
Jason W Kim
7fbe7914af
Remove an uneeded switch - Turns out reloc results are identical w/o the switch. (face+palm)
...
llvm-svn: 132790
2011-06-09 19:13:45 +00:00
Rafael Espindola
940a0ee5ca
Produce an undefined reference to _GLOBAL_OFFSET_TABLE_ if we have a
...
VK_GOTOFF reloc. This matches as' behavior, but it is not clear why the linker
might need this, so I added a FIXME.
I could test this by duplicating test/MC/ELF/got.s, but it doesn't look
worthwhile.
llvm-svn: 132655
2011-06-05 01:20:06 +00:00
Nick Lewycky
34fa1684e7
Add support for @GOTPTOFF in i386 mode.
...
llvm-svn: 132643
2011-06-04 17:38:07 +00:00
Rafael Espindola
1866808384
fixes target address tBL and tBLX and sets relocation type
...
of tBL/tBLX to R_ARM_THM_CALL (ARM ELF 4.7.1.6)
Patch by koan-sin tan.
llvm-svn: 131748
2011-05-20 20:01:01 +00:00
Jason W Kim
94c31fdd31
Add a FIXME reminder to remove ForceARMElfPIC switch.
...
llvm-svn: 131411
2011-05-16 16:35:21 +00:00
Rafael Espindola
e90c1cb221
sets bit 0 of the function address of thumb function in .symtab
...
("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture" 4.7.1.2)
Patch by Koan-Sin Tan!
llvm-svn: 131406
2011-05-16 16:17:21 +00:00
Matt Beaumont-Gay
7c6c90b35d
Remove an unused variable and move a couple others inside DEBUG.
...
llvm-svn: 131208
2011-05-11 23:34:51 +00:00
Jason W Kim
c09e726455
Address the last bit of relocation flag related divergence betweeen
...
LLVM and binutils.
With this patch, there are no functional differences between the .o
produced directly from LLVM versus the .s to .o via GNU as, for relocation tags
at least, for both PIC and non-PIC modes.
Because some non-PIC reloc tags are used (legally) on PIC, so IsPCRel flag is
necessary but not sufficient to determine whether the overall codegen mode is
PIC or not. Why is this necessary? There is an incompatibility of how relocs
are emitted in the .rodata section. Binutils PIC likes to emit certain relocs
as section relative offsets. Non-PIC does not do this.
So I added a hidden switch on the ELFObjectwriter "-arm-elf-force-pic" which
forces the objectwriter to pretend that all relocs are for PIC mode.
Todo: Activate ForceARMElfPIC to true if -relocation-model=pic is selected
on llc.
Todo: There are probably more issues for PIC mode on ARM/MC/ELF...
Todo: Existing tests in MC/ARM/elf-reloc*.ll need to be converted over to .s
tests as well as expanded to cover the gamut.
llvm-svn: 131205
2011-05-11 22:53:06 +00:00
Rafael Espindola
fd05785324
Simplify the handling of pcrel relocations on ELF. Now we do the right thing
...
for all symbol differences and can drop the old EmitPCRelSymbolValue
method.
This also make getExprForFDESymbol on ELF equal to the one on MachO, and it
can be made non-virtual.
llvm-svn: 130634
2011-05-01 03:50:49 +00:00
Rafael Espindola
b80875edee
Micro optimization and improved similarity with gas' output:
...
When two section names share a suffix, reuse the entry in shstrtab.
llvm-svn: 129115
2011-04-07 23:21:52 +00:00
Rafael Espindola
1557fd6d39
Write the section table and the section data in the same order that
...
gun as does. This makes it a lot easier to compare the output of both
as the addresses are now a lot closer.
llvm-svn: 127972
2011-03-20 18:44:20 +00:00
Jan Sjödin
771911e28b
Split MCEELFStreamer and ELFObjectWriter into .h and .cpp files, so that other components can use them.
...
llvm-svn: 126942
2011-03-03 14:52:12 +00:00
Eli Friedman
d92d17bf67
PR9352: Always emit a relocation for weak symbols. Not emitting relocations
...
for calls to weak symbols with a definition has the appearance of working
with LLVM-generated code because weak symbol definitions are put in their
own sections.
llvm-svn: 126933
2011-03-03 07:24:36 +00:00
Jan Sjödin
30a52dec93
Make all static functions become static class methods. Move shared (duplicated) functions to new MCELF class.
...
llvm-svn: 126686
2011-02-28 21:45:04 +00:00
Rafael Espindola
9e18e96264
Put in the symbol table symbols only used in a .globl statement.
...
Fixes PR9292.
llvm-svn: 126330
2011-02-23 20:22:07 +00:00
Joerg Sonnenberger
37d5484d18
Handle FK_PCRel_1 and add a test case for this and FK_PCRel_4.
...
llvm-svn: 126157
2011-02-21 23:25:41 +00:00
Rafael Espindola
490d02a334
Gas is very inconsistent about when a relaxation/relocation is needed. Do
...
the right thing and stop trying to copy it. Fixes PR8944.
llvm-svn: 125648
2011-02-16 03:25:55 +00:00
Jason W Kim
202630c6ee
Teach ARM/MC/ELF about gcc compatible reloc output to get past odd linkage
...
failures with relocations.
The code committed is a first cut at compatibility for emitted relocations in
ELF .o.
Why do this? because existing ARM tools like emitting relocs symbols as
explicit relocations, not as section-offset relocs.
Result is that with these changes,
1) relocs are now substantially identical what to gcc outputs.
2) larger apps (including many spec2k tests) compile, cross-link, and pass
Added reminder fixme to tests for future conversion to .s form.
llvm-svn: 124996
2011-02-07 01:11:15 +00:00
Jason W Kim
4761fba833
Teach ARM/MC/ELF about EF_ARM_EABI_VERSION. The magic number is set to
...
5 to match the current doc.
Added FIXME reminder Make it really configurable later.
llvm-svn: 124899
2011-02-04 21:41:11 +00:00
Jason W Kim
d2e2f56c36
Teach ARM/MC/ELF to handle R_ARM_JUMP24 relocation type for conditional jumps.
...
(yes, this is different from R_ARM_CALL)
- Adds a new method getARMBranchTargetOpValue() which handles the
necessary distinction between the conditional and unconditional br/bl
needed for ARM/ELF
At least for ARM mode, the needed fixup for conditional versus unconditional
br/bl is identical, but the ARM docs and existing ARM tools expect this
reloc type...
Added a few FIXME's for future naming fixups in ARMInstrInfo.td
llvm-svn: 124895
2011-02-04 19:47:15 +00:00
Rafael Espindola
b3eca9bb71
Add support for the --noexecstack option.
...
llvm-svn: 124077
2011-01-23 17:55:27 +00:00
Rafael Espindola
4b7b7fba38
Delay the creation of eh_frame so that the user can change the defaults.
...
Add support for SHT_X86_64_UNWIND.
llvm-svn: 124059
2011-01-23 05:43:40 +00:00
Rafael Espindola
0e7e34e476
Remove more duplicated code.
...
llvm-svn: 124056
2011-01-23 04:43:11 +00:00
Evan Cheng
d4a5c05c97
Completed :lower16: / :upper16: support for movw / movt pairs on Darwin.
...
- Fixed :upper16: fix up routine. It should be shifting down the top 16 bits first.
- Added support for Thumb2 :lower16: and :upper16: fix up.
- Added :upper16: and :lower16: relocation support to mach-o object writer.
llvm-svn: 123424
2011-01-14 02:38:49 +00:00
Jason W Kim
39e36e7ab4
Style clean up - break up the breaks.
...
llvm-svn: 123347
2011-01-13 00:07:51 +00:00
Jason W Kim
9c5b65d289
1. Support ELF pcrel relocations for movw/movt:
...
R_ARM_MOVT_PREL and R_ARM_MOVW_PREL_NC.
2. Fix minor bug in ARMAsmPrinter - treat bitfield flag as a bitfield, not an enum.
3. Add support for 3 new elf section types (no-ops)
llvm-svn: 123294
2011-01-12 00:19:25 +00:00
Rafael Espindola
3686473578
Fix PR8878.
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llvm-svn: 122658
2011-01-01 19:05:35 +00:00
Rafael Espindola
8fc59a682f
Handle reloc_riprel_4byte_movq_load. Should make the bots happy.
...
llvm-svn: 122579
2010-12-27 02:03:24 +00:00
Rafael Espindola
2ac8355ecd
Add support for the same encodings of the personality function that gnu as
...
supports.
llvm-svn: 122577
2010-12-27 00:36:05 +00:00
Rafael Espindola
9ae2d05d45
Add support for @note. Patch by Jörg Sonnenberger.
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llvm-svn: 122568
2010-12-26 21:30:59 +00:00
Rafael Espindola
0f8abeba1d
Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now
...
have a single point where targets test if a relocation is needed.
llvm-svn: 122549
2010-12-24 21:22:02 +00:00
Rafael Espindola
73c0ae77ca
Simplify the handling of .size expressions.
...
llvm-svn: 122404
2010-12-22 16:03:00 +00:00
Roman Divacky
55184ddd35
Set the value of absolute symbols.
...
llvm-svn: 122268
2010-12-20 21:14:39 +00:00
Rafael Espindola
b403e098a1
Merge isAbsolute into IsSymbolRefDifferenceFullyResolved.
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llvm-svn: 122148
2010-12-18 06:27:54 +00:00
Rafael Espindola
8396dd0893
Remove the MCObjectFormat class.
...
llvm-svn: 122147
2010-12-18 05:37:28 +00:00
Rafael Espindola
fdaae0d16f
Move some data to the TargetWriter.
...
llvm-svn: 122134
2010-12-18 03:27:34 +00:00
Rafael Espindola
d11460a65b
Store and free the TargetObjectWriter.
...
llvm-svn: 122070
2010-12-17 18:01:31 +00:00
Rafael Espindola
6b5e56c2b1
Stub out explicit MCELFObjectTargetWriter interface.
...
llvm-svn: 122067
2010-12-17 17:45:22 +00:00
Rafael Espindola
f0e24d426a
Move createELFObjectWriter to its own header.
...
llvm-svn: 122064
2010-12-17 16:59:53 +00:00
Rafael Espindola
df63335844
Use getFixupKindInfo to implement isFixupKindPCRel, ELF version.
...
llvm-svn: 122050
2010-12-17 07:28:17 +00:00
Daniel Dunbar
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
Daniel Dunbar
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
Jason W Kim
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
Jason W Kim
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
Jim Grosbach
e119da1146
Thumb unconditional branch binary encoding. rdar://8754994
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llvm-svn: 121496
2010-12-10 18:21:33 +00:00
Jim Grosbach
68b27eb9d1
Rename CB/CBZ specific fixup accordingly.
...
llvm-svn: 121404
2010-12-09 19:50:12 +00:00
Jason W Kim
c79c5f6e8c
ARM/MC/ELF TPsoft is now a proper pseudo inst.
...
Added test to check bl __aeabi_read_tp gets emitted properly for ELF/ASM
as well as ELF/OBJ (including fixup)
Also added support for ELF::R_ARM_TLS_IE32
llvm-svn: 121312
2010-12-08 23:14:44 +00:00
Bill Wendling
a7d6aa902a
Support the "target" encodings for the CB[N]Z instructions.
...
llvm-svn: 121308
2010-12-08 23:01:43 +00:00
Bill Wendling
8a6449c46e
Add support for loading from a constant pool.
...
llvm-svn: 121226
2010-12-08 01:57:09 +00:00
Rafael Espindola
93e3cf0ebd
Sorry for such a large commit. The summary is that only MachO cares about the
...
actuall addresses in a .o file, so it is better to let the MachO writer compute
it.
This is good for two reasons. First, areas that shouldn't care about
addresses now don't have access to it. Second, the layout of each section
is independent. I should use this in a subsequent commit to speed it up.
Most of the patch is just removing the section address computation. The two
interesting parts are the change on how we handle padding in the end
of sections and how MachO can get the address of a-b when a and b are in
different sections.
Since now the expression evaluation normally doesn't know the section address,
it will think that a-b needs relocation and let the MachO writer know. Once
it has computed the section addresses, it calls back the expression evaluation
with the section addresses to resolve these expressions.
The remaining problem is the handling of padding. Currently it will create
a special alignment fragment at the end. Since that fragment doesn't update
the alignment of the section, it needs the real address to be computed.
Since now the layout will not compute a-b with a and b in different sections,
the only effect that the special alignment fragment has is update the
address size of the section. This can also be done by the MachO writer.
llvm-svn: 121076
2010-12-07 00:27:36 +00:00
Jim Grosbach
9e1994698d
Add fixup for Thumb1 BL/BLX instructions.
...
llvm-svn: 121072
2010-12-06 23:57:07 +00:00
Jason W Kim
495c2bb9a6
Refactor ELFObjectWriter.
...
+ ARM/X86/MBlaze now share a common RecordRelocation
+ ARM/X86/MBlaze arch specific routines are limited to GetRelocType()
llvm-svn: 121043
2010-12-06 21:57:34 +00:00
Rafael Espindola
baf2f3b3eb
Remove the getAddress getter, initialize Ordinal in the constructor and use
...
that on the ELF writer to detect a section we created.
llvm-svn: 120981
2010-12-06 03:48:09 +00:00
Rafael Espindola
e7284c3671
Add a getSymbolOffset method and use it in the ELF writer.
...
llvm-svn: 120977
2010-12-06 02:57:26 +00:00
Rafael Espindola
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
Jim Grosbach
ce2bd8d05f
Add support for binary encoding of ARM 'adr' instructions referencing constant
...
pool entries (LEApcrel pseudo). Ongoing saga of rdar://8542291.
llvm-svn: 120635
2010-12-02 00:28:45 +00:00
Owen Anderson
943fb60b1f
Add correct encodings for STRD and LDRD, including fixup support. Additionally, update these to unified syntax.
...
llvm-svn: 120589
2010-12-01 19:18:46 +00:00
Jim Grosbach
5695098c4c
Fix a mised reloc rename spot.
...
llvm-svn: 120585
2010-12-01 19:02:26 +00:00
Jason W Kim
29805961d8
ARM/MC/ELF relocation "hello world" for movw/movt.
...
Lifted adjustFixupValue() from Darwin for sharing w ELF.
Test added
TODO:
refactor ELFObjectWriter::RecordRelocation more.
Possibly share more code with Darwin?
Lots more relocations...
llvm-svn: 120534
2010-12-01 02:40:06 +00:00
Rafael Espindola
8a3a7923eb
Define generic 1, 2 and 4 byte pc relative relocations. They are common
...
and at least the 4 byte one will be needed to implement the .cfi_* directives.
llvm-svn: 120240
2010-11-28 14:17:56 +00:00
Rafael Espindola
9f75d5df0b
Behave a bit more like gnu as and use the symbol (instead of the section)
...
for any relocation to a symbol defined in a tls section.
llvm-svn: 120121
2010-11-24 21:57:39 +00:00
Rafael Espindola
708ac4d6ad
Relocate with the symbol if the relocation is of kind NTPOFF.
...
Patch by David Meyer, I added the test.
llvm-svn: 120104
2010-11-24 19:23:50 +00:00
Jason W Kim
767a1e9adc
Fixed some style issues (no _, no spc after !)
...
llvm-svn: 119986
2010-11-22 22:05:16 +00:00
Jason W Kim
16b75262c4
Make the <ARCH>ELFObjectWriter statics private
...
llvm-svn: 119982
2010-11-22 18:57:00 +00:00
Jason W Kim
84ffdd5cf1
Fix misplaced statics.
...
llvm-svn: 119981
2010-11-22 18:47:05 +00:00
Jason W Kim
a262546df7
Kill trailing whitespace
...
llvm-svn: 119979
2010-11-22 18:42:07 +00:00
Jason W Kim
7c7d0ef287
Refactor the ELFRelocationEntry (pull up) and move the arch-specific statics to inside the class where it belongs.
...
Next step is to rationally break apart the RecordRelocation()
Probably the step will be to have 1 member function for ech slot of the ELFRelocationEntry()
llvm-svn: 119978
2010-11-22 18:41:13 +00:00
Wesley Peck
7699d6cfe9
Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests.
...
llvm-svn: 119952
2010-11-21 22:06:28 +00:00
Rafael Espindola
26cb15a549
Handle PCRel relocations with absolute values. Fixes PR8656.
...
llvm-svn: 119917
2010-11-21 00:48:25 +00:00
Rafael Espindola
7d19efd6ff
A bit more of gnu as compatibility when handling relocations with aliases.
...
llvm-svn: 119328
2010-11-16 04:11:46 +00:00
Benjamin Kramer
202d91e433
Fix compiler warnigns.
...
llvm-svn: 119175
2010-11-15 19:20:50 +00:00
Rafael Espindola
8c3039b67b
Change MCExpr::EvaluateAsRelocatableImpl of variables to return the original
...
variable if recursing fails to simplify it.
Factor AliasedSymbol to be a method of MCSymbol.
Update MCAssembler::EvaluateFixup to match the change in
EvaluateAsRelocatableImpl.
Remove the WeakRefExpr hack, as the object writer now sees the weakref with
no extra effort needed.
Nothing else is using MCTargetExpr, but keep it for now.
Now that the ELF writer sees relocations with aliases, handle
.weak foo2
foo2:
.weak bar2
.set bar2,foo2
.quad bar2
the same way gas does and produce a relocation with bar2.
llvm-svn: 119152
2010-11-15 16:33:49 +00:00
Jason W Kim
96f4c01cb3
Dovetail with Dan Dunbar's rework of ELFObjectWriter.
...
Added 2 new subclasses - X86ELFObjectWriter and ARMELFObectWriter.
ARM and X86 require different code for RecordRelocation(), possibly others.
llvm-svn: 119149
2010-11-15 16:18:39 +00:00
Rafael Espindola
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
Rafael Espindola
7d0ba3464e
Handle a peculiar comdat case: Creating a section with an undefined
...
signature symbol causes a local symbol to be created unless there is
some other use of the symbol.
llvm-svn: 119026
2010-11-14 04:17:37 +00:00
Rafael Espindola
0e3decfcf7
Simplify getSymbolIndexInSymbolTable by setting the actual index of
...
the symbols.
llvm-svn: 119022
2010-11-14 03:12:24 +00:00
Daniel Dunbar
fe0c28f4db
MC: Simplify Mach-O and ELF object writer implementations.
...
- What was I thinking?????
llvm-svn: 118992
2010-11-13 07:33:40 +00:00
Benjamin Kramer
dcc7732f88
MCELF: Copy the symbol name only if we're going to modify it.
...
llvm-svn: 118920
2010-11-12 19:26:04 +00:00
Rafael Espindola
a3e9a2298d
Initial comdat implementation.
...
llvm-svn: 118805
2010-11-11 18:13:52 +00:00
Rafael Espindola
fb6540c112
Make AliasedSymbol able to handle MCTargetExpr. They can get here if
...
a weakref is used with a VariantKind.
llvm-svn: 118798
2010-11-11 17:24:43 +00:00
Rafael Espindola
fa7b55754c
Fix the symbol index of weak references. Also make RecordRelocation a bit
...
easier to read by having const references to the symbol, aliased symbol and
renamed symbol.
llvm-svn: 118793
2010-11-11 16:48:11 +00:00
Rafael Espindola
19fa38000a
Remove some explicit arguments to getELFSection. This is
...
a leftover from the removal of isExplicit.
llvm-svn: 118774
2010-11-11 03:40:25 +00:00
Rafael Espindola
5a8d781caa
Factor some code into WriteSection.
...
llvm-svn: 118733
2010-11-10 23:36:59 +00:00
Rafael Espindola
eb97f59753
Update the section index map after we add the medatada sections.
...
llvm-svn: 118728
2010-11-10 22:34:07 +00:00
Rafael Espindola
1801410fa8
Use SectionIndexMap in WriteSymbolTable to make it a little less brittle.
...
llvm-svn: 118725
2010-11-10 22:16:43 +00:00
Rafael Espindola
d634003ebd
Factor some code into ComputeIndexMap.
...
llvm-svn: 118722
2010-11-10 21:51:05 +00:00
Rafael Espindola
51d68339a2
Change the String<size> methods to take a fragment instead of a buffer.
...
llvm-svn: 118709
2010-11-10 20:02:59 +00:00
Rafael Espindola
36ef57d2eb
Use MCSectionELF in places we know we have an ELF section.
...
llvm-svn: 118699
2010-11-10 19:05:07 +00:00
Rafael Espindola
9bb44a5ce8
Fixed version of 118639 with an extra assert to catch similar problems
...
earlier. Implicit bool -> int conversions are evil!
llvm-svn: 118651
2010-11-09 23:42:07 +00:00
Rafael Espindola
33048f069f
Revert previous patch. Missed a case.
...
llvm-svn: 118645
2010-11-09 22:54:38 +00:00
Rafael Espindola
4bdd2724e3
Remove IsExplicit. It was always false.
...
llvm-svn: 118639
2010-11-09 22:37:44 +00:00
Rafael Espindola
1614597873
Implement .weakref.
...
llvm-svn: 117911
2010-11-01 14:28:48 +00:00
Rafael Espindola
3fe87a1eed
Add support for files with more than 65280 sections. No testcase since
...
it would be a bit too big :-)
llvm-svn: 117849
2010-10-31 00:16:26 +00:00
Rafael Espindola
45834a0065
Be more strict on when we produce an undefined reference. In gas a file with
...
just
.type foo,@object
will produce an undefined reference to foo. On the other hand, a file with
just
.weakref bar, foo
will not. It is somewhat hard to support both in MC since both statements
should create the symbols. It should be possible if we really need to by
adding to the flags, but hopefully that is not necessary.
With this patch we do not produce a undefined reference in any of those cases.
The assembly file needs an actual use for the undefined reference to be
present.
This is in preparation for a patch implementing .weakref.
llvm-svn: 117735
2010-10-29 23:09:31 +00:00
Rafael Espindola
3c5a54e4b9
Defined weak symbols should have non-zero value.
...
llvm-svn: 117585
2010-10-28 19:39:57 +00:00
Rafael Espindola
29f70afbae
Fix relocations with renamed symbols.
...
llvm-svn: 117575
2010-10-28 19:08:03 +00:00
Rafael Espindola
6cd76e63f8
Aliases defined with .symver should copy the binding of the symbols they alias.
...
Move the existing patching for undefined symbols so that all the patching
is done in the same function.
llvm-svn: 117570
2010-10-28 18:33:03 +00:00
Rafael Espindola
936ba3af28
Implement R_X86_64_DTPOFF32.
...
llvm-svn: 117548
2010-10-28 15:11:03 +00:00
Rafael Espindola
2dbec3f762
Implement TLSLD.
...
llvm-svn: 117547
2010-10-28 15:02:40 +00:00
Rafael Espindola
e8f08be11c
Implement DTPOFF.
...
llvm-svn: 117546
2010-10-28 14:48:59 +00:00
Rafael Espindola
6f23eb380d
Implement TLSLDM.
...
llvm-svn: 117544
2010-10-28 14:37:09 +00:00
Rafael Espindola
b3b49bbc39
Implement VK_GOTNTPOFF and switch RelocNeedsGOT to use VariantKind.
...
llvm-svn: 117543
2010-10-28 14:22:44 +00:00
Rafael Espindola
f8537165bd
Add support for R_386_TLS_GD, R_386_TLS_LE_32, R_386_TLS_IE and R_386_TLS_LE.
...
llvm-svn: 117494
2010-10-27 21:23:52 +00:00
Rafael Espindola
24c8b04d5f
Implement R_X86_64_GOTTPOFF, R_X86_64_TLSGD and R_X86_64_TPOFF32.
...
llvm-svn: 117481
2010-10-27 20:28:07 +00:00
Benjamin Kramer
14807270be
Replace pointer arithmetic with StringRef::substr.
...
llvm-svn: 117477
2010-10-27 19:53:52 +00:00
Rafael Espindola
26496e6835
Produce an error for an invalid use of .symver.
...
llvm-svn: 117462
2010-10-27 17:56:18 +00:00
Rafael Espindola
cc1b168ef6
Symbols defined as the difference of other two end up in the ABS section.
...
llvm-svn: 117451
2010-10-27 16:04:30 +00:00
Rafael Espindola
eb0c2c170d
Add support for the .symver directive. This is really ugly, but most of it is
...
contained in the ELF object writer.
llvm-svn: 117448
2010-10-27 15:18:17 +00:00
Rafael Espindola
a5efd6a27c
Move more logic to isInSymtab and simplify.
...
llvm-svn: 117447
2010-10-27 14:44:52 +00:00
Rafael Espindola
0ed1543d4e
Add support for emitting ARM file attributes.
...
llvm-svn: 117275
2010-10-25 17:50:35 +00:00
Rafael Espindola
800fd3533c
Add X86::reloc_global_offset_table and use it to have a single place where
...
we check for _GLOBAL_OFFSET_TABLE_.
llvm-svn: 117241
2010-10-24 17:35:42 +00:00
Wesley Peck
1851090515
Making the e_machine configurable by the target backend in ELFObjectWriter.
...
llvm-svn: 117099
2010-10-22 15:52:49 +00:00
Rafael Espindola
ee8d15157a
Small cleanups and fixes in preparation for fixing _GLOBAL_OFFSET_TABLE_.
...
llvm-svn: 116848
2010-10-19 19:31:37 +00:00
Rafael Espindola
fba9f74932
Implement R_386_GOT32.
...
llvm-svn: 116744
2010-10-18 20:47:21 +00:00
Rafael Espindola
0a5314fdb3
Relocate with .bss instead of using the symbol. Matches gas behavior.
...
llvm-svn: 116741
2010-10-18 20:25:33 +00:00
Rafael Espindola
3604d4441a
Reenable assert.
...
llvm-svn: 116738
2010-10-18 19:33:01 +00:00
Rafael Espindola
e3dc9e2ea1
Produce ELF::R_386_GOTPC relocations.
...
llvm-svn: 116728
2010-10-18 18:36:12 +00:00
Rafael Espindola
257374bb0f
Make the bots happy.
...
llvm-svn: 116719
2010-10-18 18:03:28 +00:00
Rafael Espindola
3521f8467d
Produce a R_386_PLT32 when needed. Moved the default cases of switches to the
...
start for consistency.
llvm-svn: 116715
2010-10-18 16:58:03 +00:00
Rafael Espindola
4464e0858f
Handle GOTOFF correctly on i386.
...
llvm-svn: 116711
2010-10-18 16:38:04 +00:00
Benjamin Kramer
77414757f6
Fix a typo and silence unused variable warnings in -Asserts build.
...
llvm-svn: 116685
2010-10-17 07:38:40 +00:00
Rafael Espindola
4262a22225
Add a MCObjectFormat class so that code common to all targets that use a
...
single object format can be shared.
This also adds support for
mov zed+(bar-foo), %eax
on ELF and COFF targets.
llvm-svn: 116675
2010-10-16 18:23:53 +00:00
Rafael Espindola
84378f0f53
Refactor alias handling to AliasedSymbol.
...
llvm-svn: 116600
2010-10-15 18:25:33 +00:00
Rafael Espindola
fbcf0db7ee
Refactor code a bit and avoid creating unnecessary entries in the string
...
map.
llvm-svn: 116579
2010-10-15 15:39:06 +00:00
Rafael Espindola
bee6e9f8e0
Remove some code duplication.
...
llvm-svn: 116484
2010-10-14 16:34:44 +00:00
Rafael Espindola
883936ce0b
Another case of 256 sections not being enough :-)
...
llvm-svn: 115858
2010-10-06 22:28:19 +00:00
Rafael Espindola
5f2d6a5cd9
Get binding and visibility info from the the alias, but Type from the symbol
...
being aliased.
llvm-svn: 115836
2010-10-06 21:02:29 +00:00
Rafael Espindola
d444577382
If a symbol is global, reloc against it even if it is in a mergeable section.
...
llvm-svn: 115817
2010-10-06 19:27:21 +00:00
Rafael Espindola
83b2a3337f
Make sure weak symbols are listed after the local ones.
...
llvm-svn: 115795
2010-10-06 16:47:31 +00:00
Rafael Espindola
8f3d2c9058
Correctly handle GOTPCREL relocations.
...
llvm-svn: 115793
2010-10-06 16:23:36 +00:00
Rafael Espindola
d7565c3a06
Use a relocation against the symbol if it is a PLT and the symbol is in another
...
section. Common because of linkonce sections.
llvm-svn: 115718
2010-10-05 23:57:26 +00:00
Rafael Espindola
0ad137e98e
Implement more alias cases.
...
llvm-svn: 115699
2010-10-05 22:26:43 +00:00
Rafael Espindola
3844da781f
256 sections should be enough for anyone...
...
llvm-svn: 115687
2010-10-05 21:20:07 +00:00
Rafael Espindola
c58a37ea51
Don't crash in a strange .size directive.
...
llvm-svn: 115684
2010-10-05 21:02:45 +00:00
Rafael Espindola
b1d0789357
Implement a simple alias case and refactor the code a bit so that the
...
isInSymtab and isLocal logic in the two loops don't get easily out of sync.
llvm-svn: 115643
2010-10-05 18:01:23 +00:00
Rafael Espindola
d03e81dba8
Produce a undefined reference to _GLOBAL_OFFSET_TABLE_ when needed.
...
llvm-svn: 115623
2010-10-05 15:48:37 +00:00
Rafael Espindola
bce26a1ee0
On ELF we need to know which symbols are used in relocations to decide if
...
they should be in the symbol table or not. Instead of "guessing", just compute
the symbol table after the relocations are known.
llvm-svn: 115619
2010-10-05 15:11:03 +00:00
Rafael Espindola
fd1fff8b19
Implement ELF::R_X86_64_GOTPCREL.
...
llvm-svn: 115547
2010-10-04 19:51:39 +00:00
Rafael Espindola
308363336b
Move isFixupKindX86PCRel.
...
llvm-svn: 115545
2010-10-04 19:46:28 +00:00
Rafael Espindola
baadbd554a
Produce a R_X86_64_PLT32 when needed.
...
llvm-svn: 115541
2010-10-04 19:04:13 +00:00