Commit Graph

194 Commits

Author SHA1 Message Date
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
Michael J. Spencer 0f83d96852 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 fbdab0d633 Fix whitespace.
llvm-svn: 117472
2010-10-27 18:52:20 +00:00
NAKAMURA Takumi 392f084f46 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 fc3642b205 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 b0b2c57149 Revert r114997. It was causing a failure on darwin10-selfhost.
llvm-svn: 115002
2010-09-28 23:11:55 +00:00
Bill Wendling d848beb1e5 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 9f06f911d1 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 34bfab0ad5 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 60b131654b 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 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.
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 329d202362 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 3632171750 Revert r107205 and r107207.
llvm-svn: 107215
2010-06-29 22:34:52 +00:00
Bill Wendling 1767723dbe 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 19a4b843cc 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 6fdea1bda8 Add full bss data support for darwin tls variables.
llvm-svn: 104414
2010-05-22 00:10:22 +00:00
Eric Christopher 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
Eric Christopher bf79238599 Add some section and constant support for darwin TLS.
llvm-svn: 103974
2010-05-17 21:02:07 +00:00
Chris Lattner 028449325b add COFF support for COMDAT sections, patch by Nathan Jeffords!
llvm-svn: 103304
2010-05-07 21:49:09 +00:00
Chris Lattner 87cffa9498 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 5b212a31a2 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 80c345927e delete a forwarding function.
llvm-svn: 100815
2010-04-08 21:34:17 +00:00
Chris Lattner 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
Chris Lattner 433d40695b 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 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
Chris Lattner 2104b8d36e rename llvm::llvm_report_error -> llvm::report_fatal_error
llvm-svn: 100709
2010-04-07 22:58:41 +00:00
Chris Lattner 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
Bill Wendling bbcaa40227 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 2ea586b8f5 use Mang->getSymbol() more.
llvm-svn: 98577
2010-03-15 20:37:38 +00:00
Chris Lattner 632eb65cd2 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 03627cb12c 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 2562356992 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 a810bdfcca 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 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
Chris Lattner ac2361a9b0 set the temporary bit on MCSymbols correctly.
llvm-svn: 98124
2010-03-10 02:25:11 +00:00
Chris Lattner ef2f8047fa tidy up
llvm-svn: 97895
2010-03-07 04:28:09 +00:00
Charles Davis 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
Bill Wendling 182eea8f81 Revert...
--- Reverse-merging r97592 into '.':
U    lib/CodeGen/TargetLoweringObjectFileImpl.cpp

llvm-svn: 97657
2010-03-03 19:31:05 +00:00
Bill Wendling ce153affa3 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 e7179e8b76 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 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.
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 336c0a1c87 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 9baeb02000 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 ab663a0bfe Move TLOF implementations to libCodegen to resolve layering violation.
llvm-svn: 96288
2010-02-15 22:37:53 +00:00