Rafael Espindola
5426a9ee37
GCC uses a different encoding of pointers in the FDE when using
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-fno-dwarf2-cfi-asm. Implement the same behavior.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-01 04:49:54 +00:00
Rafael Espindola
debd7e4e8b
Simplify the handling of pcrel relocations on ELF. Now we do the right thing
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130634 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-01 03:50:49 +00:00
Rafael Espindola
f1a5c7ec04
Add all the plumbing needed for MC to expand cfi to the old tables in
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the final assembly. It is the same technique used when targeting
assemblers that don't support .loc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130587 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-30 03:44:37 +00:00
Rafael Espindola
a37bd1d02c
Implement MCAsmStreamer::EmitDwarfAdvanceFrameAddr.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130585 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-30 03:21:04 +00:00
Daniel Dunbar
0eab5c4d85
MCExpr: Add FindAssociatedSection, which attempts to mirror the 'as' semantics
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that associate sections with expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130517 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29 18:00:03 +00:00
Rafael Espindola
9099813bd5
Add an alternative implementation of CIE and FDE emission that outputs them
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in the same order as the one in CodeGen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130471 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29 02:42:28 +00:00
Rafael Espindola
a0057ca13f
Add the getExprForFDESymbol method that responsible for computing the
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expressions used in the FDE to refer to symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130437 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28 21:04:39 +00:00
Rafael Espindola
bfa27cc5d7
Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it when
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converting the symbol passed to .cfi_personality into bytes is the file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130400 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28 16:09:09 +00:00
Rafael Espindola
8bca4106df
Mark the EH symbol global or weak if the corresponding function is.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130397 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28 12:50:37 +00:00
Rafael Espindola
235b830328
Add a small temporary hack for producing identical eh_frame sections on OS X.
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This removes one of the main advantages of moving eh_frame to MC, but
makes the transition a lot easier to debug (run md5).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130379 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28 04:04:14 +00:00
Rafael Espindola
ed708f9c1f
Factor a bit of code to MCStreamer::EmitLabel. Keep track of the last
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non private symbol. This will be use for handling
foo:
.cfi_startproc
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On OS X where we have to create a foo.eh symbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130305 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-27 15:21:19 +00:00
Jay Foad
ddcdcc8863
Remove unused STL header includes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-23 19:53:52 +00:00
Rafael Espindola
e8cfbd843d
Remove unused argument.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129955 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 23:39:26 +00:00
Devang Patel
3f3bf9387b
Reduce clutter in asm output. Do not emit source location as comment for each instruction.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129715 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-18 20:26:49 +00:00
Eli Friedman
f4387d9afb
Make the StringMaps attached to MCContext use the MCContext's allocator;
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reduces the number of calls to malloc().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129687 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-18 05:02:31 +00:00
Chris Lattner
7a2bdde0a0
Fix a ton of comment typos found by codespell. Patch by
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Luis Felipe Strano Moraes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15 05:18:47 +00:00
Rafael Espindola
066c2f495a
Be consistent about being virtual and returning void in the cfi methods.
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Implement the ones that were missing in the asm streamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 23:59:07 +00:00
Rafael Espindola
5d7dcd3335
Remove LastOffset from the asm parser.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129378 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 18:53:30 +00:00
Rafael Espindola
25f492e778
Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129362 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 16:12:03 +00:00
Rafael Espindola
c57543964d
Implement .cfi_same_value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129361 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 15:31:05 +00:00
Kevin Enderby
bd3327654b
Adding support for printing operands symbolically to llvm's public 'C'
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disassembler API. Hooked this up to the ARM target so such tools as Darwin's
otool(1) can now print things like branch targets for example this:
blx _puts
instead of this:
blx #-36
And even print the expression encoded in the Mach-O relocation entried for
things like this:
movt r0, :upper16:((_foo-_bar)+1234)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129284 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11 18:08:50 +00:00
Bill Wendling
44dcfd3625
Replace the old algorithm that emitted the "print the alias for an instruction"
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with the newer, cleaner model. It uses the IAPrinter class to hold the
information that is needed to match an instruction with its alias. This also
takes into account the available features of the platform.
There is one bit of ugliness. The way the logic determines if a pattern is
unique is O(N**2), which is gross. But in reality, the number of items it's
checking against isn't large. So while it's N**2, it shouldn't be a massive time
sink.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129110 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-07 21:20:06 +00:00
Daniel Dunbar
c6cf43d258
MC: Add support for disabling "temporary label" behavior. Useful for debugging
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on Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128430 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-28 22:49:15 +00:00
Jim Grosbach
d31d304f83
Clean up assembly statement separator support.
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The MC asm lexer wasn't honoring a non-default (anything but ';') statement
separator. Fix that, and generalize a bit to support multi-character
statement separators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128227 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24 18:46:34 +00:00
Jim Grosbach
b9b1e307f2
Fix comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128182 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23 23:32:48 +00:00
Stuart Hastings
65c8bca788
Reapply 127939 since Daniel fixed the breakage. <rdar://problem/9012638>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127944 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 02:42:31 +00:00
Stuart Hastings
825dd96918
Revert 127939. <rdar://problem/9012638>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 02:33:56 +00:00
Stuart Hastings
7257897402
Revise r126127 to address Daniel's comments. <rdar://problem/9012638>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127939 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 01:32:01 +00:00
Duncan Sands
ba9934648f
Speculatively revert commit 127478 (jsjodin) in an attempt to fix the
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llvm-gcc-i386-linux-selfhost and llvm-x86_64-linux-checks buildbots.
The original log entry:
Remove optimization emitting a reference insted of label difference, since
it can create more relocations. Removed isBaseAddressKnownZero method,
because it is no longer used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127540 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12 13:07:37 +00:00
Jan Sjödin
e4f6d7461a
Remove optimization emitting a reference insted of label difference, since it can create more relocations. Removed isBaseAddressKnownZero method, because it is no longer used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 19:37:02 +00:00
Jan Sjödin
01dff96461
Add constructors to MCElfStreamer and MCObjectStreamer to take an extra MCAssembler * argument.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127343 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 17:33:05 +00:00
John McCall
cdc06fa3c7
Typo. Patch by arrowdodger.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127256 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 18:01:22 +00:00
Anton Korobeynikov
57caad7a33
Preliminary support for ARM frame save directives emission via MI flags.
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This is just very first approximation how the stuff should be done
(e.g. ARM-only for now). More to follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127101 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 18:43:32 +00:00
Anton Korobeynikov
b5e16af9ea
Some first rudimentary support for ARM EHABI: print exception table in "text mode".
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 18:43:15 +00:00
Cameron Zwarich
f754f50805
Roll out r126425 and r126450 to see if it fixes the failures on the buildbots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126488 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 16:30:32 +00:00
Joerg Sonnenberger
93c65e6e66
Restore r125595 (reverted in r126336) with modifications:
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Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126443 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 21:59:22 +00:00
Devang Patel
f410608271
Enable DebugInfo support for COFF object files.
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Patch by Nathan Jeffords!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126425 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 21:04:00 +00:00
Stuart Hastings
5129bdecd8
Omit private_extern declarations of extern symbols; followup to
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r124468. Patch by Rafael Avila de Espindola!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126297 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 02:27:05 +00:00
Joerg Sonnenberger
7d0805dcb8
Use a vector of pairs to implement the section stack, not two
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independent vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 01:07:42 +00:00
Rafael Espindola
908159b46a
Gas is very inconsistent about when a relaxation/relocation is needed. Do
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the right thing and stop trying to copy it. Fixes PR8944.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125648 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16 03:25:55 +00:00
Rafael Espindola
7768a9dce1
Add support for pushsection and popsection. Patch by Joerg Sonnenberger.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125629 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16 01:08:29 +00:00
Rafael Espindola
9de3a0701a
Move broken HasCommonSymbols to ELFWriter.cpp.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125490 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14 16:51:08 +00:00
Jim Grosbach
e5ec5a4177
Remove trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125385 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11 18:45:44 +00:00
Jim Grosbach
98311ecb4a
Remove trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125327 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11 01:21:00 +00:00
Bob Wilson
c67b1a3a76
Remove trailing whitespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 23:17:44 +00:00
Rafael Espindola
96aa78c8c5
Add support for the --noexecstack option.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124077 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23 17:55:27 +00:00
Rafael Espindola
1c13026e8f
Remove more duplicated code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124056 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23 04:43:11 +00:00
Rafael Espindola
c85dca66e6
Remove duplicated code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23 04:28:49 +00:00
Anton Korobeynikov
3965b5e974
Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123476 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-14 21:58:08 +00:00
Evan Cheng
7597212abc
Model :upper16: and :lower16: as ARM specific MCTargetExpr. This is a step
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in the right direction. It eliminated some hacks and will unblock codegen
work. But it's far from being done. It doesn't reject illegal expressions,
e.g. (FOO - :lower16:BAR). It also doesn't work in Thumb2 mode at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123369 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-13 07:58:56 +00:00