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29 Commits

Author SHA1 Message Date
Rafael Espindola
38c45a939d Move the support for using .init_array from ARM to the generic 
TargetLoweringObjectFileELF. Use this to support it on X86. Unlike ARM,
on X86 it is not easy to find out if .init_array should be used or not, so
the decision is made via TargetOptions and defaults to off.

Add a command line option to llc that enables it.

llvm-svn: 158692
 2012-06-19 00:48:28 +00:00
Bill Wendling
d483464dd5 Modify the code that emits the module flags to use the new module flags accessor 
method. This allows the target lowering code to not have to deal with MDNodes.

Also, avoid leaking memory like a sieve by not creating a global variable for
the image info section, but just emitting the code directly.

llvm-svn: 150624
 2012-02-15 22:36:15 +00:00
Bill Wendling
493a72b2fe Add code to the target lowering object file module to handle module flags. 
The MachO back-end needs to emit the garbage collection flags specified in the
module flags. This is a WIP, so the front-end hasn't been modified to emit these
flags just yet. Documentation and front-end switching to occur soon.

llvm-svn: 150507
 2012-02-14 21:28:13 +00:00
Anton Korobeynikov
682b2821ce Properly emit ctors / dtors with priorities into desired sections 
and let linker handle the rest.

This finally fixes PR5329

llvm-svn: 148990
 2012-01-25 22:24:19 +00:00
Evan Cheng
c9bc5a9011 Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc. 
There is still a bit more refactoring left to do in Targets. But we are now very
close to fixing all the layering issues in MC.

llvm-svn: 135611
 2011-07-20 19:50:42 +00:00
Evan Cheng
380dc98371 Add MCObjectFileInfo and sink the MCSections initialization code from 
TargetLoweringObjectFileImpl down to MCObjectFileInfo.

TargetAsmInfo is done to one last method. It's *almost* gone!

llvm-svn: 135569
 2011-07-20 05:58:47 +00:00
Evan Cheng
7bdc771798 Fix up TargetLoweringObjectFile ctors to properly initialize fields. 
llvm-svn: 135068
 2011-07-13 19:54:59 +00:00
Charles Davis
cb20ea9935 Add the suffix to the Win64 EH data sections' names if given. Add a test for 
this. XFAIL'd, because the COFF AsmParser can't handle .section yet.

llvm-svn: 132220
 2011-05-27 21:38:47 +00:00
Charles Davis
f835c87c83 Add a parameter to the Win64 EH section getters to get a section with a 
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but
I'll get to it in the next patch.

Fix up all callers of the affected functions. Make them pass said suffix to
the function.

llvm-svn: 132205
 2011-05-27 19:09:24 +00:00
Charles Davis
989cc73ef3 Add .pdata and .xdata sections to the COFF TLOF implementation. 
llvm-svn: 131763
 2011-05-20 22:13:55 +00:00
Rafael Espindola
eb5d0cb4f4 GCC uses a different encoding of pointers in the FDE when using 
-fno-dwarf2-cfi-asm. Implement the same behavior.

llvm-svn: 130637
 2011-05-01 04:49:54 +00:00
Rafael Espindola
36e419b524 Remove unnecessary argument. 
llvm-svn: 130343
 2011-04-27 23:17:57 +00:00
Rafael Espindola
0525497a16 Rename getPersonalityPICSymbol to getCFIPersonalitySymbol, document it, and 
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
Rafael Espindola
9e5aaa3b78 Put each personality function in a section. This fixes the gnu ld warning: 
error in foo.o; no .eh_frame_hdr table will be created.

llvm-svn: 129635
 2011-04-16 03:51:21 +00:00
Chris Lattner
0304b82f80 Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!

llvm-svn: 129558
 2011-04-15 05:18:47 +00:00
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
Chris Lattner
e667efb462 nuke dead ivar which was supposed to be committed with r112496 
llvm-svn: 112497
 2010-08-30 18:16:27 +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
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
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
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
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