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50 Commits

Author SHA1 Message Date
Rafael Espindola
aefd549139 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
492ad6ca06 Remove more duplicated code. 
llvm-svn: 124056
 2011-01-23 04:43:11 +00:00
Rafael Espindola
59c1246cee Remove duplicated code. 
llvm-svn: 124054
 2011-01-23 04:28:49 +00:00
Rafael Espindola
0e665e502d Fixed version of 121434 with no new memory leaks. 
llvm-svn: 121471
 2010-12-10 07:39:47 +00:00
Rafael Espindola
011e168728 Revert my previous patch to make the valgrind bots happy. 
llvm-svn: 121461
 2010-12-10 04:01:09 +00:00
Rafael Espindola
03ad1e8f1f Initial support for the cfi directives. This is just enough to get 
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

llvm-svn: 121434
 2010-12-09 23:48:29 +00:00
Rafael Espindola
3c0f11a265 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
Michael J. Spencer
bf82646290 COFF: Add IMAGE_SCN_MEM_READ to text sections. 
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
Michael J. Spencer
fc69783598 Fix whitespace. 
llvm-svn: 117472
 2010-10-27 18:52:20 +00:00
NAKAMURA Takumi
4a85646d6c lib/CodeGen/TargetLoweringObjectFileImpl.cpp: Tweak to emit ".{section}${name}" instead of ".{section}$linkonce_{name}" for linkonce sections. 
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
Anton Korobeynikov
c425302670 Do not check that the bodies of two defs of same linkonce global are the same. 
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
Bill Wendling
fc29f0d706 Revert r114997. It was causing a failure on darwin10-selfhost. 
llvm-svn: 115002
 2010-09-28 23:11:55 +00:00
Bill Wendling
13775375ed Fix a FIXME. _foo.eh symbols are currently always exported so that the linker 
knows about them. This is not necessary on 10.6 and later.

llvm-svn: 114997
 2010-09-28 22:36:56 +00:00
Chris Lattner
0ebcc18dec the latest assembler that runs on powerpc 10.4 machines doesn't 
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
Chris Lattner
765e59210c two changes: 
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
Chris Lattner
e2f110cba5 fix the definitions of ConstTextCoalSection/ConstDataCoalSection 
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
Anton Korobeynikov
3097e49515 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. 
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
Daniel Dunbar
cc754e66c6 MC: Move COFF enumeration constants to llvm/Support/COFF.h, patch by Michael 
Spencer!

llvm-svn: 107418
 2010-07-01 20:07:24 +00:00
Bill Wendling
59ef9bcc6d Revert r107205 and r107207. 
llvm-svn: 107215
 2010-06-29 22:34:52 +00:00
Bill Wendling
05a4c0b1f2 Introducing the "linker_weak" linkage type. This will be used for Objective-C 
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
Eric Christopher
5c5a5be829 Add support for initialized global data for darwin tls. Update comments 
and testcases accordingly.

llvm-svn: 104635
 2010-05-25 21:28:50 +00:00
Eric Christopher
165bcdf8a8 Add full bss data support for darwin tls variables. 
llvm-svn: 104414
 2010-05-22 00:10:22 +00:00
Eric Christopher
6ea9cf8425 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
Eric Christopher
380e16a725 Add some section and constant support for darwin TLS. 
llvm-svn: 103974
 2010-05-17 21:02:07 +00:00
Chris Lattner
e72e3e9c12 add COFF support for COMDAT sections, patch by Nathan Jeffords! 
llvm-svn: 103304
 2010-05-07 21:49:09 +00:00
Chris Lattner
c1d0e3a79e switch MCSectionCOFF from a syntactic to semantic representation, 
patch by Peter Housel!

llvm-svn: 103267
 2010-05-07 17:17:41 +00:00
Chris Lattner
dabcd9738c add llvm codegen support for -ffunction-sections and -fdata-sections, 
patch by Sylvere Teissier!

llvm-svn: 101106
 2010-04-13 00:36:43 +00:00
Chris Lattner
e154403f78 delete a forwarding function. 
llvm-svn: 100815
 2010-04-08 21:34:17 +00:00
Chris Lattner
1cf4bded13 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
Chris Lattner
0225dbbfee remove the TargetLoweringObjectFileMachO::getMachoSection 
api and update clients to use MCContext instead.

llvm-svn: 100808
 2010-04-08 20:40:11 +00:00
Chris Lattner
60ff59e5c1 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
Chris Lattner
80b41881bc rename llvm::llvm_report_error -> llvm::report_fatal_error 
llvm-svn: 100709
 2010-04-07 22:58:41 +00:00
Chris Lattner
8e4cf6f425 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
Bill Wendling
5493cf6715 Now that the default for Darwin platforms is to place the LSDA into the TEXT 
section, remove the target-specific code that performs this.

llvm-svn: 98580
 2010-03-15 21:09:38 +00:00
Chris Lattner
0ae3e35f22 use Mang->getSymbol() more. 
llvm-svn: 98577
 2010-03-15 20:37:38 +00:00
Chris Lattner
b24982ba65 fix MCSectionELF to not leak memory, just like I did for MCSymbol. 
MCSectionMachO is already fine (yay for fixed size arrays?),
MCSectionCOFF still leaks.

llvm-svn: 98537
 2010-03-15 06:23:52 +00:00
Chris Lattner
5aefaeb42e fix a fixme in TargetLoweringObjectFile::getExprForDwarfReference 
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
Chris Lattner
1ce9dfd498 rename getSymbolForDwarf* to getExprForDwarf* since it returns 
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
Bill Wendling
df325dee9d Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that 
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
Chris Lattner
e34dde1e83 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
Chris Lattner
ed0b8d36e4 set the temporary bit on MCSymbols correctly. 
llvm-svn: 98124
 2010-03-10 02:25:11 +00:00
Chris Lattner
6dbe3336f9 tidy up 
llvm-svn: 97895
 2010-03-07 04:28:09 +00:00
Charles Davis
faa2f44081 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
Bill Wendling
f0bd51c4e3 Revert... 
--- Reverse-merging r97592 into '.':
U    lib/CodeGen/TargetLoweringObjectFileImpl.cpp

llvm-svn: 97657
 2010-03-03 19:31:05 +00:00
Bill Wendling
1ad5825d64 Okay. One last attempt: 
Place the LSDA into the TEXT section on Mach-O. This saves space.

llvm-svn: 97592
 2010-03-02 21:50:35 +00:00
Bill Wendling
eb07770194 The TType is always absptr on Mach-O...at least for now. 
llvm-svn: 97295
 2010-02-27 01:05:51 +00:00
Anton Korobeynikov
0b402e1a61 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. 
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
Bob Wilson
c03fbf812d Revert Anton's most recent EH patch (r96637), since it breaks a lot of 
ARM and Thumb tests.

llvm-svn: 96680
 2010-02-19 17:10:59 +00:00
Anton Korobeynikov
8aaa04a614 Use the same encoding for EH stuff uniformly on all MachO targets. 
This hopefulyl should unbreak EH on PPC/Darwin.

llvm-svn: 96637
 2010-02-19 00:29:36 +00:00
Anton Korobeynikov
ef1862e256 Move TLOF implementations to libCodegen to resolve layering violation. 
llvm-svn: 96288
 2010-02-15 22:37:53 +00:00