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118 Commits

Author SHA1 Message Date
Jim Grosbach
2f57374e32 Darwin assembler improved relocs when w/o subsections_via_symbols. 
When the file isn't being built with subsections-via-symbols, symbol
differences involving non-local symbols can be resolved more aggressively.
Needed for gas compatibility.

llvm-svn: 146054
 2011-12-07 19:46:59 +00:00
Jim Grosbach
c3c8c0eddd Tidy up. Hard tabs. 
llvm-svn: 145878
 2011-12-06 00:13:09 +00:00
Jim Grosbach
93874e36fa Switch MCAssembler to method names starting w/ lower-case. 
per http://llvm.org/docs/CodingStandards.html#ll_naming

llvm-svn: 145873
 2011-12-06 00:03:48 +00:00
Eric Christopher
fc8e09962f Formatting and typo. 
llvm-svn: 139325
 2011-09-08 22:17:40 +00:00
Kevin Enderby
16f9df1f05 Fix a Darwin x86_64 special case of a jmp to a temporary symbol from an atom 
without a base symbol that must not have a relocation entry.

llvm-svn: 139316
 2011-09-08 20:53:44 +00:00
Benjamin Kramer
e404b3e2d1 MachOWriter: Don't crash on fixups with arithmetic, emit a relocation instead. This matches what as does. 
llvm-svn: 137414
 2011-08-12 01:51:29 +00:00
Jim Grosbach
5a837d70a5 Don't truncate MachO addresses. 
Assigned symbol addresses get truncated to 32-bits, even on 64-bit platforms.
That's obviously bogus.
For example,

 .globl _foo
 .equ _foo, 0x987654321ULL


rdar://9922863

llvm-svn: 137158
 2011-08-09 22:12:37 +00:00
Evan Cheng
2a0a4e1a73 Rename TargetAsmBackend to MCAsmBackend; rename createAsmBackend to createMCAsmBackend. 
llvm-svn: 136010
 2011-07-25 23:24:55 +00:00
Evan Cheng
13d54fc7c9 Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong. 
llvm-svn: 135833
 2011-07-23 00:45:41 +00:00
Jim Grosbach
440526a1e8 Refactor MachO relocation generaration into the Target directories. 
Move the target-specific RecordRelocation logic out of the generic MC
MachObjectWriter and into the target-specific object writers. This allows
nuking quite a bit of target knowledge from the supposedly target-independent
bits in lib/MC.

llvm-svn: 133844
 2011-06-24 23:44:37 +00:00
Jim Grosbach
c3b24db27e tidy up whitespace. 
llvm-svn: 133815
 2011-06-24 19:43:27 +00:00
Jim Grosbach
4ba3d51f23 Fixup info for Thumb2 unconditional branch. 
rdar://9667872

llvm-svn: 133808
 2011-06-24 18:48:32 +00:00
Jim Grosbach
e216f0411d Tidy up. 
llvm-svn: 133770
 2011-06-23 22:29:00 +00:00
Bill Wendling
c62a961c09 80-column violations. 
llvm-svn: 133668
 2011-06-23 00:09:43 +00:00
Bill Wendling
19f2f807eb Move class methods out-of-line. This reduces the indentation, and is more in 
line with LLVM's general coding style.
No functionality change.

llvm-svn: 133645
 2011-06-22 21:07:27 +00:00
Daniel Dunbar
32545135b1 MC/Mach-O: Update getSymbolAddress() to support evaluation of variables. 
llvm-svn: 130522
 2011-04-29 18:13:42 +00:00
Daniel Dunbar
f419ec6362 MC/Mach-O: Allow emission of relocations for variables in some more cases. 
llvm-svn: 130520
 2011-04-29 18:10:47 +00:00
Daniel Dunbar
6178302330 MC/Mach-O: Find section ordinal's by looking at the symbol, instead of assuming they are present in a fragment. 
llvm-svn: 130519
 2011-04-29 18:07:43 +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
Owen Anderson
b201c7dede Fix a bug introduced by my patch yesterday: BL is a 4-byte instructions like BLX, rather than a 2-byte instruction like B. 
llvm-svn: 128169
 2011-03-23 21:19:56 +00:00
Owen Anderson
7785f055b9 RIT_ARM_ThumbBranch32Bit relocations are not used and should never be generated. 
This fixes kimwitu++, bullet, and tramp3dv4 with the ARM integrated assembler.
Fixes <rdar://problem/9165738>.

llvm-svn: 128117
 2011-03-22 22:52:54 +00:00
Duncan Sands
e91289191a Silence compiler warning about case values not being in the enumerated type 
MCFixupKind.  This is the same technique that is used elsewhere in MC.

llvm-svn: 127676
 2011-03-15 08:54:51 +00:00
Oscar Fuentes
15a668f50b Fixes warnings emitted by Visual Studio 2010 compiler. 
Patch by Erik Olofsson!

llvm-svn: 126796
 2011-03-01 23:11:57 +00:00
Jason W Kim
10c1a81736 Teach ARM/MC/ELF to handle R_ARM_JUMP24 relocation type for conditional jumps. 
(yes, this is different from R_ARM_CALL)

- Adds a new method getARMBranchTargetOpValue() which handles the
  necessary distinction between the conditional and unconditional br/bl
  needed for ARM/ELF

At least for ARM mode, the needed fixup for conditional versus unconditional
br/bl is identical, but the ARM docs and existing ARM tools expect this
reloc type...

Added a few FIXME's for future naming fixups in ARMInstrInfo.td

llvm-svn: 124895
 2011-02-04 19:47:15 +00:00
Evan Cheng
3689d1302d Fix bogus assert condition noticed by Csaba Raduly. 
llvm-svn: 124645
 2011-02-01 01:50:49 +00:00
Evan Cheng
0cdd5547f1 Completed :lower16: / :upper16: support for movw / movt pairs on Darwin. 
- Fixed :upper16: fix up routine. It should be shifting down the top 16 bits first.
- Added support for Thumb2 :lower16: and :upper16: fix up.
- Added :upper16: and :lower16: relocation support to mach-o object writer.

llvm-svn: 123424
 2011-01-14 02:38:49 +00:00
Daniel Dunbar
2d0cf8e149 MC/Mach-O/Thumb: Select appropriate relocation types for Thumb. 
llvm-svn: 122583
 2010-12-27 14:49:49 +00:00
Rafael Espindola
b2e09adc62 Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now 
have a single point where targets test if a relocation is needed.

llvm-svn: 122549
 2010-12-24 21:22:02 +00:00
Daniel Dunbar
592854a10a MC/Mach-O/ARM: Start handling some Thumb branches. 
llvm-svn: 122547
 2010-12-24 16:41:46 +00:00
Daniel Dunbar
e6ec0e7149 MC/Mach-O/ARM: Don't try to use scattered relocs for BR24 fixups. 
llvm-svn: 122441
 2010-12-22 21:26:43 +00:00
Matt Beaumont-Gay
2a54f466cf Fix another conditional expression mismatched enum type warning. 
llvm-svn: 122419
 2010-12-22 18:25:55 +00:00
Daniel Dunbar
cb8ac619a2 MC/Mach-O/ARM: We always use the SECTDIFF reloc type on ARM, which is 
esp. important given that the LOCAL_SECTDIFF enumeration got redefined.

llvm-svn: 122412
 2010-12-22 16:52:19 +00:00
Daniel Dunbar
63f7a3a108 MC/Mach-O/ARM: Clone off an ARM version of RecordScatteredRelocation until I figure out how it is supposed to work. 
llvm-svn: 122410
 2010-12-22 16:45:29 +00:00
Daniel Dunbar
985567aebc MC/Mach-O: Return to reporting errors if we see unexpected fixup kinds. 
llvm-svn: 122409
 2010-12-22 16:32:41 +00:00
Daniel Dunbar
d85743ca7a MC/Mach-O/ARM: Recognize generic _Data_N fixup kinds. 
llvm-svn: 122408
 2010-12-22 16:32:37 +00:00
Daniel Dunbar
e44a2c1166 MC/Mach-O/ARM: Add enough relocation logic to get BR24 relocations. 
llvm-svn: 122407
 2010-12-22 16:19:24 +00:00
Daniel Dunbar
55eff2421b MC/Mach-O/ARM: Fix thinko. 
llvm-svn: 122406
 2010-12-22 16:19:20 +00:00
Daniel Dunbar
17e19b2d45 MC/Mach-O/ARM: Stub out RecordARMRelocation, which is mostly a copy of 
RecordRelocation with lots of FIXMEs.

llvm-svn: 122402
 2010-12-22 13:50:05 +00:00
Daniel Dunbar
8db4843cd3 Simplify. 
llvm-svn: 122401
 2010-12-22 13:49:56 +00:00
Daniel Dunbar
bc2bf96e91 MC/Mach-O: Split out RecordARMRelocation for now, it is weird enough it isn't 
clear how to keep in the generic path (yet).
 - Will revisit when it actually works.

llvm-svn: 122400
 2010-12-22 13:49:43 +00:00
Matt Beaumont-Gay
b03146b50a GCC objects to the two sides of a conditional expression having different enum 
types, but they're just getting converted to unsigned anyway, so cast first
(and ask questions later).

llvm-svn: 122377
 2010-12-21 23:43:23 +00:00
Daniel Dunbar
1c98bbd915 MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong 
type.

llvm-svn: 122334
 2010-12-21 15:26:45 +00:00
Rafael Espindola
df98fb74f6 Merge isAbsolute into IsSymbolRefDifferenceFullyResolved. 
llvm-svn: 122148
 2010-12-18 06:27:54 +00:00
Rafael Espindola
7f9be9e112 Remove the MCObjectFormat class. 
llvm-svn: 122147
 2010-12-18 05:37:28 +00:00
Daniel Dunbar
6979fc1057 MC/Mach-O: On second thought, use a custom hook for enabling aggressive 
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
 - In practice, we will want to change this eventually because it only means we
   generate less relocations (it also eliminates the need for the horrible
   '.set' hack that Darwin requires in some places).

llvm-svn: 122042
 2010-12-17 05:50:29 +00:00
Daniel Dunbar
14208868a4 MC/Mach-O: Implement IsSymbolRefDifferenceFullyResolved. 
- Unlike for fixups, we always do the "reliable" thing (not just for x86_64).
 - Since Darwin 'as' would typically reject things that using this will allow,
   we don't need to worry about compatibility.

llvm-svn: 122038
 2010-12-17 04:54:58 +00:00
Daniel Dunbar
2caf23b5a9 MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format specific hook. 
- Currently just has stub implementations for Mach-O, ELF, and COFF.

llvm-svn: 122037
 2010-12-17 04:54:54 +00:00
Daniel Dunbar
f77af712b7 MC/Assembler: Strip out object writer arguments, now that it is always available 
-- and remove FIXME asking for the same!

llvm-svn: 122032
 2010-12-17 02:45:59 +00:00
Daniel Dunbar
6d4a3e98f3 MC/Target: Remove HasScatteredSymbols target hook variable, which has been 
superceded and was effectively dead.

llvm-svn: 122024
 2010-12-17 02:06:08 +00:00
Daniel Dunbar
2277f06687 MC/Mach-O: Lift some MachObjectWriter arguments into the target specific 
interface.

llvm-svn: 121981
 2010-12-16 17:21:02 +00:00