c85e0d81e4
Fix a silly error I introduce in r131951.
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Fixes PR10095.
llvm-svn: 132735
2011-06-07 23:26:45 +00:00
041ec4aada
Add the suffix to the Win64 EH data sections' names if given. Add a test for
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this. XFAIL'd, because the COFF AsmParser can't handle .section yet.
llvm-svn: 132220
2011-05-27 21:38:47 +00:00
936847ddf5
Revert r132111. I built Release (without Asserts), so I didn't know about the
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assert that prevented setting alignment on section creation.
llvm-svn: 132113
2011-05-26 05:35:55 +00:00
4be76e2152
Align Win64 EH Table sections to 4 bytes.
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llvm-svn: 132111
2011-05-26 05:19:54 +00:00
0d018b1155
Explain FIXME.
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llvm-svn: 131952
2011-05-24 03:10:31 +00:00
0f33be1b87
Fix the defaults for .eh_frame. We were marking it as writable.
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llvm-svn: 131951
2011-05-24 02:50:20 +00:00
1a1d4777b9
Fix typo. When will I learn?
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llvm-svn: 131765
2011-05-20 22:23:34 +00:00
bc1feb1f25
Add .pdata and .xdata sections to the COFF TLOF implementation.
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llvm-svn: 131763
2011-05-20 22:13:55 +00:00
a48b1375df
Remove a flag that would set the ".eh" symbol as .globl. MachO was the only one
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who used this flag, and it now emits CFI and doesn't emit this anymore. All
other targets left this flag "false".
<rdar://problem/8486371>
llvm-svn: 130918
2011-05-05 06:49:15 +00:00
750cb61553
GCC uses a different encoding of pointers in the FDE when using
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-fno-dwarf2-cfi-asm. Implement the same behavior.
llvm-svn: 130637
2011-05-01 04:49:54 +00:00
ce83fc3463
Remove unnecessary argument.
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llvm-svn: 130343
2011-04-27 23:17:57 +00:00
08704349da
Rename getPersonalityPICSymbol to getCFIPersonalitySymbol, document it, and
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give it a bit more responsibility. Also implement it for MachO.
If hacked to use cfi, 32 bit MachO will produce
.cfi_personality 155, L___gxx_personality_v0$non_lazy_ptr
and 64 bit will produce
.cfi_presonality ___gxx_personality_v0
The general idea is that .cfi_personality gets passed the final symbol. It is
up to codegen to produce it if using indirect representation (like 32 bit
MachO), but it is up to MC to decide which relocations to create.
llvm-svn: 130341
2011-04-27 23:08:15 +00:00
3989776770
Fix indentation.
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llvm-svn: 130331
2011-04-27 21:29:52 +00:00
e473aaf540
Remove unused arguments.
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llvm-svn: 129844
2011-04-20 03:08:09 +00:00
cd01ed5bd6
ADT/Triple: Renambe isOSX... methods to isMacOSX for consistency with the OS
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triple component.
llvm-svn: 129838
2011-04-20 00:14:25 +00:00
4a7783b0c2
CodeGen: Eliminate a use of getDarwinMajorNumber().
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- There is a minor semantic change here (evidenced by the test change) for
Darwin triples that have no version component. I debated changing the default
behavior of isOSVersionLT, but decided it made more sense for triples to be
explicit.
llvm-svn: 129802
2011-04-19 20:32:39 +00:00
a83b177035
Put each personality function in a section. This fixes the gnu ld warning:
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error in foo.o; no .eh_frame_hdr table will be created.
llvm-svn: 129635
2011-04-16 03:51:21 +00:00
12d5312622
Reapply 127939 since Daniel fixed the breakage. <rdar://problem/9012638>
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llvm-svn: 127944
2011-03-19 02:42:31 +00:00
08b4daa191
Revert 127939. <rdar://problem/9012638>
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llvm-svn: 127943
2011-03-19 02:33:56 +00:00
83d4a28d1f
Revise r126127 to address Daniel's comments. <rdar://problem/9012638>
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llvm-svn: 127939
2011-03-19 01:32:01 +00:00
601a11edd4
Fix llvm-gcc bootstrap with gnu ld.
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The problem was codegen guessing the wrong values and printing
.section .eh_frame,"aMS",@progbits,4
It is not clear at all if Codegen should try to guess, MC is the
one that should know the default flags.
llvm-svn: 126421
2011-02-24 20:18:01 +00:00
9b48fef478
Revert r125960, it's breaking darwin10 bootstrap.
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llvm-svn: 126163
2011-02-21 23:52:19 +00:00
b4863a41e9
Fix to correctly support attribute((section("__DATA, __common"))).
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Radar 9012638.
llvm-svn: 126127
2011-02-21 17:27:17 +00:00
8fbe09f160
Reapply r114997 now that the buildbots have been updated.
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llvm-svn: 125960
2011-02-18 21:12:58 +00:00
70d8015063
Switch llvm to using comdats. For now always use groups with a single
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section.
llvm-svn: 125526
2011-02-14 22:23:49 +00:00
4b7b7fba38
Delay the creation of eh_frame so that the user can change the defaults.
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Add support for SHT_X86_64_UNWIND.
llvm-svn: 124059
2011-01-23 05:43:40 +00:00
0e7e34e476
Remove more duplicated code.
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llvm-svn: 124056
2011-01-23 04:43:11 +00:00
aea4958ea6
Remove duplicated code.
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llvm-svn: 124054
2011-01-23 04:28:49 +00:00
0a017a6db2
Fixed version of 121434 with no new memory leaks.
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llvm-svn: 121471
2010-12-10 07:39:47 +00:00
a945a34c73
Revert my previous patch to make the valgrind bots happy.
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llvm-svn: 121461
2010-12-10 04:01:09 +00:00
56eb741237
Initial support for the cfi directives. This is just enough to get
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f:
.cfi_startproc
nop
.cfi_endproc
assembled (on ELF).
llvm-svn: 121434
2010-12-09 23:48:29 +00:00
9bb44a5ce8
Fixed version of 118639 with an extra assert to catch similar problems
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earlier. Implicit bool -> int conversions are evil!
llvm-svn: 118651
2010-11-09 23:42:07 +00:00
0f83d96852
COFF: Add IMAGE_SCN_MEM_READ to text sections.
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There are currently 100 references to COFF::IMAGE_SCN in 6 files
and 11 different functions. Section to attribute mapping really
needs to happen in one place to avoid problems like this.
llvm-svn: 117473
2010-10-27 18:52:29 +00:00
fbdab0d633
Fix whitespace.
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llvm-svn: 117472
2010-10-27 18:52:20 +00:00
392f084f46
lib/CodeGen/TargetLoweringObjectFileImpl.cpp: Tweak to emit ".{section}${name}" instead of ".{section}$linkonce_{name}" for linkonce sections.
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It seems GNU ld/PECOFF relies on section names, linking with g++'s libstdc++.a would fail.
llvm-svn: 116791
2010-10-19 03:24:42 +00:00
fc3642b205
Do not check that the bodies of two defs of same linkonce global are the same.
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Such a check does not make any sense in presense of inlining and other compiler-dependent stuff.
This should fix bunch of warnings on mingw32.
llvm-svn: 116113
2010-10-08 21:50:04 +00:00
b0b2c57149
Revert r114997. It was causing a failure on darwin10-selfhost.
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llvm-svn: 115002
2010-09-28 23:11:55 +00:00
d848beb1e5
Fix a FIXME. _foo.eh symbols are currently always exported so that the linker
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knows about them. This is not necessary on 10.6 and later.
llvm-svn: 114997
2010-09-28 22:36:56 +00:00
9f06f911d1
the latest assembler that runs on powerpc 10.4 machines doesn't
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support aligned comm. Detect when compiling for 10.4 and don't
emit an alignment for comm. THis will hopefully fix PR8198.
llvm-svn: 114817
2010-09-27 06:44:54 +00:00
34bfab0ad5
two changes:
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1) nuke ConstDataCoalSection, which is dead.
2) revise my previous patch for rdar://8018335,
which was completely wrong. Specifically, it doesn't
make sense to mark __TEXT,__const_coal as PURE_INSTRUCTIONS,
because it is for readonly data. templates (it turns out)
go to const_coal_nt. The real fix for rdar://8018335 was
to give ConstTextCoalSection a section kind of ReadOnly
instead of Text.
llvm-svn: 112496
2010-08-30 18:12:35 +00:00
60b131654b
fix the definitions of ConstTextCoalSection/ConstDataCoalSection
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to keep "Text" in sync with the "pure instructions" section attribute.
Lack of this attribute was preventing the assembler from emitting
multibyte noops instructions for templates (and inlines, and other
coalesced stuff) and was causing the assembler to mismatch .o files.
This fixes rdar://8018335
llvm-svn: 108461
2010-07-15 21:22:00 +00:00
e415230477
Fix a major regression on COFF targets introduced by r103267: 'discardable' section means that it is used only during the program load and can be discarded afterwards.
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This way *only* debug sections can be discarded, but not the opposite. Seems like the copy-and-pasto from ELF code, since there it contains the reverse flag ('alloc').
llvm-svn: 107658
2010-07-06 15:24:56 +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
19a4b843cc
Add support for initialized global data for darwin tls. Update comments
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and testcases accordingly.
llvm-svn: 104635
2010-05-25 21:28:50 +00:00
6fdea1bda8
Add full bss data support for darwin tls variables.
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llvm-svn: 104414
2010-05-22 00:10:22 +00:00
9635b3da6b
More data/parsing support for tls directives. Add a few more testcases
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and cleanup comments as well.
llvm-svn: 103985
2010-05-17 22:53:55 +00:00
bf79238599
Add some section and constant support for darwin TLS.
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llvm-svn: 103974
2010-05-17 21:02:07 +00:00
028449325b
add COFF support for COMDAT sections, patch by Nathan Jeffords!
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llvm-svn: 103304
2010-05-07 21:49:09 +00:00
87cffa9498
switch MCSectionCOFF from a syntactic to semantic representation,
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patch by Peter Housel!
llvm-svn: 103267
2010-05-07 17:17:41 +00:00
5b212a31a2
add llvm codegen support for -ffunction-sections and -fdata-sections,
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patch by Sylvere Teissier!
llvm-svn: 101106
2010-04-13 00:36:43 +00:00
80c345927e
delete a forwarding function.
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llvm-svn: 100815
2010-04-08 21:34:17 +00:00
5418dd5fda
move elf section uniquing to MCContext. Along the way
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merge XCore's section into MCSectionELF
llvm-svn: 100812
2010-04-08 21:26:26 +00:00
433d40695b
remove the TargetLoweringObjectFileMachO::getMachoSection
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api and update clients to use MCContext instead.
llvm-svn: 100808
2010-04-08 20:40:11 +00:00
2073112fc0
move macho section uniquing from MCParser and TLOF to MCContext where
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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
2104b8d36e
rename llvm::llvm_report_error -> llvm::report_fatal_error
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llvm-svn: 100709
2010-04-07 22:58:41 +00:00
9897043928
Rip out the 'is temporary' nonsense from the MCContext interface to
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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
bbcaa40227
Now that the default for Darwin platforms is to place the LSDA into the TEXT
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section, remove the target-specific code that performs this.
llvm-svn: 98580
2010-03-15 21:09:38 +00:00
2ea586b8f5
use Mang->getSymbol() more.
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llvm-svn: 98577
2010-03-15 20:37:38 +00:00
632eb65cd2
fix MCSectionELF to not leak memory, just like I did for MCSymbol.
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MCSectionMachO is already fine (yay for fixed size arrays?),
MCSectionCOFF still leaks.
llvm-svn: 98537
2010-03-15 06:23:52 +00:00
03627cb12c
fix a fixme in TargetLoweringObjectFile::getExprForDwarfReference
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where we used ot create an MCSymbol for ".". Now emit an assembler
temporary label and reference it instead of "." textually.
rdar://7739457
llvm-svn: 98292
2010-03-11 21:55:20 +00:00
2562356992
rename getSymbolForDwarf* to getExprForDwarf* since it returns
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an MCExpr and not an MCSymbol. Change it to take an MCStreamer,
which is currently unused.
No functionality change.
llvm-svn: 98278
2010-03-11 19:41:58 +00:00
a810bdfcca
Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that
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indicates that an MCSymbol is external or not. (It's true if it's external.)
This will be used to specify the correct information to add to non-lazy
pointers. That will be explained further when this bit is used.
llvm-svn: 98199
2010-03-10 22:34:10 +00:00
71c30c164f
move three lowering hooks from MAI to TLOF and make one of them
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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
ef2f8047fa
tidy up
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llvm-svn: 97895
2010-03-07 04:28:09 +00:00
8545afe0b0
Don't emit global symbols into the (__TEXT,__ustring) section on Darwin. This
...
is a workaround for <rdar://problem/7672401/> (which I filed).
This let's us build Wine on Darwin, and it gets the Qt build there a little bit
further (so Doug says).
llvm-svn: 97845
2010-03-05 22:28:45 +00:00
182eea8f81
Revert...
...
--- Reverse-merging r97592 into '.':
U lib/CodeGen/TargetLoweringObjectFileImpl.cpp
llvm-svn: 97657
2010-03-03 19:31:05 +00:00
ce153affa3
Okay. One last attempt:
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Place the LSDA into the TEXT section on Mach-O. This saves space.
llvm-svn: 97592
2010-03-02 21:50:35 +00:00
e7179e8b76
The TType is always absptr on Mach-O...at least for now.
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llvm-svn: 97295
2010-02-27 01:05:51 +00:00
31a9212b0b
It turned out that we failed to emit proper symbol stubs on non-x86/darwin for ages (we emitted a reference to a stub, but no stub was emitted). The code inside x86-32/macho target objfile lowering should actually be the generic one - move it there.
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This (I really, really hope) should fix EH issues on ppc/darwin
and arm/darwin.
llvm-svn: 96755
2010-02-21 20:28:15 +00:00
336c0a1c87
Revert Anton's most recent EH patch (r96637), since it breaks a lot of
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ARM and Thumb tests.
llvm-svn: 96680
2010-02-19 17:10:59 +00:00
9baeb02000
Use the same encoding for EH stuff uniformly on all MachO targets.
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This hopefulyl should unbreak EH on PPC/Darwin.
llvm-svn: 96637
2010-02-19 00:29:36 +00:00
ab663a0bfe
Move TLOF implementations to libCodegen to resolve layering violation.
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llvm-svn: 96288
2010-02-15 22:37:53 +00:00
Rafael Espindola