Commit Graph

47 Commits

Author SHA1 Message Date
Evan Cheng f5bd6c6510 EmitZerofill should take a 64-bit size or else it's chopping off large zero-filled global. rdar://11729134
llvm-svn: 159023
2012-06-22 20:14:46 +00:00
Jim Grosbach dc1e36e9f5 Tidy up. Trailing whitespace.
llvm-svn: 156602
2012-05-11 01:41:30 +00:00
Daniel Dunbar 9646a472da MC: Fix the MCNullStreamer which was broken in r147763.
llvm-svn: 151213
2012-02-22 23:49:50 +00:00
Jim Grosbach b591277c4a Better diagnostic for malformed .org assembly directive.
Provide source line number information.

llvm-svn: 149101
2012-01-27 00:37:08 +00:00
Rafael Espindola 0708209642 Split Finish into Finish and FinishImpl to have a common place to do end of
file error checking. Use that to error on an unfinished cfi_startproc.

The error is not nice, but is already better than a segmentation fault.

llvm-svn: 147717
2012-01-07 03:13:18 +00:00
Rafael Espindola d3df3d3527 Add back the MC bits of 126425. Original patch by Nathan Jeffords. I added the
asm parsing and testcase.

llvm-svn: 146801
2011-12-17 01:14:52 +00:00
Nick Lewycky 40f8f2ff24 Add support for a new extension to the .file directive:
.file filenumber "directory" "filename"

This removes one join+split of the directory+filename in MC internals. Because
bitcode files have independent fields for directory and filenames in debug info,
this patch may change the .o files written by existing .bc files.

llvm-svn: 142300
2011-10-17 23:05:28 +00:00
Benjamin Kramer 6397051ece Don't drop alignment info on local common symbols.
- On COFF the .lcomm directive has an alignment argument.
- On ELF we fall back to .local + .comm

Based on a patch by NAKAMURA Takumi.

Fixes PR9337, PR9483 and PR10128.

llvm-svn: 138976
2011-09-01 23:04:27 +00:00
Evan Cheng c7ac690ba2 Unfortunately several files in MC are badly violating layering rule by using
TargetAsmInfo, which in turn pulls in TargetRegisterInfo, etc. :-( There are
other cases of violations, but this is probably the worst.

This patch is but one small step towards fixing this. 500 more steps to go. :-(

llvm-svn: 135131
2011-07-14 05:43:07 +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 6aea59268a Remove unused argument.
llvm-svn: 129955
2011-04-21 23:39:26 +00:00
Devang Patel 17740e70d5 Reduce clutter in asm output. Do not emit source location as comment for each instruction.
llvm-svn: 129715
2011-04-18 20:26:49 +00:00
Cameron Zwarich fcf51fd298 Roll out r126425 and r126450 to see if it fixes the failures on the buildbots.
llvm-svn: 126488
2011-02-25 16:30:32 +00:00
Devang Patel b037383a35 Enable DebugInfo support for COFF object files.
Patch by Nathan Jeffords!

llvm-svn: 126425
2011-02-24 21:04:00 +00:00
Rafael Espindola 58ac6e1677 Add support for pushsection and popsection. Patch by Joerg Sonnenberger.
llvm-svn: 125629
2011-02-16 01:08:29 +00:00
Rafael Espindola 0a017a6db2 Fixed version of 121434 with no new memory leaks.
llvm-svn: 121471
2010-12-10 07:39:47 +00:00
Rafael Espindola a945a34c73 Revert my previous patch to make the valgrind bots happy.
llvm-svn: 121461
2010-12-10 04:01:09 +00:00
Rafael Espindola 56eb741237 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 1c8ac8f027 There are two reasons why we might want to use
foo = a - b
.long foo
instead of just
.long a - b

First, on darwin9 64 bits the assembler produces the wrong result. Second,
if "a" is the end of the section all darwin assemblers (9, 10 and mc) will not
consider a - b to be a constant but will if the dummy foo is created.

Split how we handle these cases. The first one is something MC should take care
of. The second one has to be handled by the caller.

llvm-svn: 120889
2010-12-04 03:21:47 +00:00
Rafael Espindola 57ab708bdd Try to resolve symbol differences early, and if successful create a plain
data fragment. This reduces the time to assemble the test in 8711 from 60s to
54s.

llvm-svn: 120767
2010-12-03 00:55:40 +00:00
Devang Patel 8cabd938ed Use set directive for StartMinusEndExpr.
This is a fix for llvm-gcc-i386-darwin9 buildbot failure.

llvm-svn: 120742
2010-12-02 21:32:30 +00:00
Rafael Espindola c653a895c8 Add .loc methods to the streamer.
Next: Add support for the !HasDotLocAndDotFile case to the MCAsmStreamer
and then switch codegen to use it.

llvm-svn: 119384
2010-11-16 21:20:32 +00:00
Jim Grosbach 5a2c68d308 MC'ize the '.code 16' and '.thumb_func' ARM directives.
llvm-svn: 118301
2010-11-05 22:08:08 +00:00
Rafael Espindola 5e874982f2 Add support for expressions in .sleb/.uleb directives.
llvm-svn: 118023
2010-11-02 17:22:24 +00:00
Rafael Espindola 1614597873 Implement .weakref.
llvm-svn: 117911
2010-11-01 14:28:48 +00:00
Rafael Espindola f667d929ce Add a InitSections method to the streamer interface.
The ELF implementation now creates text, data and bss to match the gnu as
behavior.

The text streamer still has the old MachO specific behavior since
the testsuite checks that it will error when a directive is given
before a setting the current section for example.

A nice benefit is that -n is not required anymore when producing
ELF files.

llvm-svn: 114027
2010-09-15 21:48:40 +00:00
Benjamin Kramer e39017cb97 Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky.
llvm-svn: 112849
2010-09-02 18:53:37 +00:00
Eric Christopher 5c87be766d Make EmitTBSSSymbol take a section argument so that we can find it later.
Fix up callers and users.

llvm-svn: 104057
2010-05-18 21:16:04 +00:00
Eric Christopher 9fb6bb07ca Add AsmParser support for darwin tbss directive.
Nothing uses this yet.

llvm-svn: 103757
2010-05-14 01:50:28 +00:00
Chris Lattner 72afa956db break coff symbol definition stuff out into proper MCStreamer callbacks,
patch by Nathan Jeffords!

llvm-svn: 103346
2010-05-08 19:54:22 +00:00
Chris Lattner aab52840af make the NullStreamer set the section on a label when emitted so that isDefined() works.
llvm-svn: 98100
2010-03-09 23:12:18 +00:00
Kevin Enderby e83d74f626 This is the first patch to put the needed bits in place to eventually allow code
to be aligned with optimal nops.  This patch does not change any functionality
and when the compiler is changed to use EmitCodeAlignment() it should also not
change the resulting output.  Once the compiler change is made and everything
looks good the next patch with the table of optimal X86 nops will be added to
WriteNopData() changing the output.  There are many FIXMEs in this patch which
will be removed when we have better target hooks (coming soon I hear).

llvm-svn: 96963
2010-02-23 18:26:34 +00:00
Chris Lattner 3cde760023 mcstreamerize gprel32 emission.
llvm-svn: 94452
2010-01-25 21:28:50 +00:00
Chris Lattner 601ef33c77 mcstreamerize .file and .file. This also fixes an issue where the
normal form of .file would fail if the filename had a weird character
in it.

llvm-svn: 94437
2010-01-25 18:58:59 +00:00
Chris Lattner 91dac6d570 emit the .size directive for global variables on ELF through
mcstreamer.

llvm-svn: 94416
2010-01-25 07:52:13 +00:00
Chris Lattner b1301f7bce mcize lcomm, simplify .comm, extend both to support 64-bit sizes.
llvm-svn: 94299
2010-01-23 07:47:02 +00:00
Chris Lattner 685508cf49 move the various directive enums out of the MCStreamer class
into a new MCDirectives.h file.

llvm-svn: 94294
2010-01-23 06:39:22 +00:00
Chris Lattner c35681b298 Generalize mcasmstreamer data emission APIs to take an address space
identifier.  There is no way to work around it.

llvm-svn: 93896
2010-01-19 19:46:13 +00:00
Daniel Dunbar ad36e8aceb Pass StringRef by value.
llvm-svn: 86251
2009-11-06 10:58:06 +00:00
Daniel Dunbar 897ffadd2d llvm-mc: Pass values to MCStreamer as MCExprs, not MCValues.
llvm-svn: 80578
2009-08-31 08:09:28 +00:00
Daniel Dunbar b7b2097aac llvm-mc: Simplify EmitAssignment ('.set' is identical to '=').
llvm-svn: 80577
2009-08-31 08:09:09 +00:00
Daniel Dunbar 6a715dccdf llvm-mc: MCStreamer cleanups. - Remove EmitLocalSymbol, this is unsupported for now.
- Switch Emit{CommonSymbol,Zerofill} to take alignment in bytes (for consistency).

llvm-svn: 80484
2009-08-30 06:17:16 +00:00
Daniel Dunbar 96abad185d llvm-mc: Emit .lcomm as .zerofill.
llvm-svn: 80343
2009-08-28 05:48:46 +00:00
Daniel Dunbar cf72e1c03e llvm-mc: Add const to EmitZeroFill section argument.
llvm-svn: 80341
2009-08-28 05:48:22 +00:00
Chris Lattner f446070b62 null streamer needs to maintain the current section as well.
llvm-svn: 79343
2009-08-18 16:46:29 +00:00
Chris Lattner aa1526419c change AsmPrinter to switch sections using AsmStreamer instead of
doing it directly.  This requires const'izing a bunch of stuff that
took sections, but this seems like the right semantic thing to do:
emitting a label to a section shouldn't mutate the MCSection object
itself, for example.

llvm-svn: 79227
2009-08-17 05:49:08 +00:00
Daniel Dunbar aba5fb8c9a llvm-mc: Add dummy MCStreamer implementation, (eventually) for use in profiling.
- Currently unused.

 - A few other random comment fixes lumped in.

llvm-svn: 78960
2009-08-13 23:36:34 +00:00