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path: root/lib/MC/MachObjectWriter.cpp
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2012-05-18Refactor data-in-code annotations.Jim Grosbach
Use a dedicated MachO load command to annotate data-in-code regions. This is the same format the linker produces for final executable images, allowing consistency of representation and use of introspection tools for both object and executable files. Data-in-code regions are annotated via ".data_region"/".end_data_region" directive pairs, with an optional region type. data_region_directive := ".data_region" { region_type } region_type := "jt8" | "jt16" | "jt32" | "jta32" end_data_region_directive := ".end_data_region" The previous handling of ARM-style "$d.*" labels was broken and has been removed. Specifically, it didn't handle ARM vs. Thumb mode when marking the end of the section. rdar://11459456 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157062 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-26Prune some includes and forward declarations.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153429 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24ARM Darwin symbol ref differences w/o subsection-via-symbols.Jim Grosbach
When not using subsections via symbols, the assembler can resolve symbol differences (including pcrel references) to non-local labels at assembly time, not just those in the same atom. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148865 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18MCAssembler tweak for determining when a symbol difference is resolved.Jim Grosbach
If the two fragments are in the same Atom, then the difference expression is resolvable at compile time. Previously we were checking that they were in the same fragment, but that breaks down in the presence of instruction relaxation which has multiple fragments in the same atom. rdar://10711829 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148423 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17MC tweak symbol difference resolution for non-local symbols.Jim Grosbach
When the non-local symbol in the expression is in the same fragment as the second symbol, the assembler can still evaluate the expression without needing a relocation. For example, on ARM: _foo: ldr lr, (_foo - 4) rdar://10348687 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148341 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-07Darwin assembler improved relocs when w/o subsections_via_symbols.Jim Grosbach
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Tidy up. Hard tabs.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145878 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Switch MCAssembler to method names starting w/ lower-case.Jim Grosbach
per http://llvm.org/docs/CodingStandards.html#ll_naming git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145873 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-08Formatting and typo.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139325 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-08Fix a Darwin x86_64 special case of a jmp to a temporary symbol from an atomKevin Enderby
without a base symbol that must not have a relocation entry. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139316 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12MachOWriter: Don't crash on fixups with arithmetic, emit a relocation ↵Benjamin Kramer
instead. This matches what as does. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137414 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09Don't truncate MachO addresses.Jim Grosbach
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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137158 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Rename TargetAsmBackend to MCAsmBackend; rename createAsmBackend to ↵Evan Cheng
createMCAsmBackend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136010 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where ↵Evan Cheng
they belong. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135833 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Refactor MachO relocation generaration into the Target directories.Jim Grosbach
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133844 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24tidy up whitespace.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133815 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-24Fixup info for Thumb2 unconditional branch.Jim Grosbach
rdar://9667872 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133808 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23Tidy up.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133770 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-2380-column violations.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133668 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22Move class methods out-of-line. This reduces the indentation, and is more inBill Wendling
line with LLVM's general coding style. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133645 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29MC/Mach-O: Update getSymbolAddress() to support evaluation of variables.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130522 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29MC/Mach-O: Allow emission of relocations for variables in some more cases.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130520 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29MC/Mach-O: Find section ordinal's by looking at the symbol, instead of ↵Daniel Dunbar
assuming they are present in a fragment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130519 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15Fix a ton of comment typos found by codespell. Patch byChris Lattner
Luis Felipe Strano Moraes! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23Fix a bug introduced by my patch yesterday: BL is a 4-byte instructions like ↵Owen Anderson
BLX, rather than a 2-byte instruction like B. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22RIT_ARM_ThumbBranch32Bit relocations are not used and should never be generated.Owen Anderson
This fixes kimwitu++, bullet, and tramp3dv4 with the ARM integrated assembler. Fixes <rdar://problem/9165738>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128117 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15Silence compiler warning about case values not being in the enumerated typeDuncan Sands
MCFixupKind. This is the same technique that is used elsewhere in MC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127676 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01Fixes warnings emitted by Visual Studio 2010 compiler.Oscar Fuentes
Patch by Erik Olofsson! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126796 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04Teach ARM/MC/ELF to handle R_ARM_JUMP24 relocation type for conditional jumps.Jason W Kim
(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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124895 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-01Fix bogus assert condition noticed by Csaba Raduly.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124645 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-14Completed :lower16: / :upper16: support for movw / movt pairs on Darwin.Evan Cheng
- 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123424 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-27MC/Mach-O/Thumb: Select appropriate relocation types for Thumb.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122583 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-24Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We nowRafael Espindola
have a single point where targets test if a relocation is needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122549 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-24MC/Mach-O/ARM: Start handling some Thumb branches.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122547 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22MC/Mach-O/ARM: Don't try to use scattered relocs for BR24 fixups.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122441 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22Fix another conditional expression mismatched enum type warning.Matt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22MC/Mach-O/ARM: We always use the SECTDIFF reloc type on ARM, which isDaniel Dunbar
esp. important given that the LOCAL_SECTDIFF enumeration got redefined. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122412 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22MC/Mach-O/ARM: Clone off an ARM version of RecordScatteredRelocation until I ↵Daniel Dunbar
figure out how it is supposed to work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22MC/Mach-O: Return to reporting errors if we see unexpected fixup kinds.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122409 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22MC/Mach-O/ARM: Recognize generic _Data_N fixup kinds.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122408 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22MC/Mach-O/ARM: Add enough relocation logic to get BR24 relocations.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122407 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22MC/Mach-O/ARM: Fix thinko.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122406 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22MC/Mach-O/ARM: Stub out RecordARMRelocation, which is mostly a copy ofDaniel Dunbar
RecordRelocation with lots of FIXMEs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122402 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22Simplify.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22MC/Mach-O: Split out RecordARMRelocation for now, it is weird enough it isn'tDaniel Dunbar
clear how to keep in the generic path (yet). - Will revisit when it actually works. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122400 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21GCC objects to the two sides of a conditional expression having different enumMatt Beaumont-Gay
types, but they're just getting converted to unsigned anyway, so cast first (and ask questions later). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrongDaniel Dunbar
type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18Merge isAbsolute into IsSymbolRefDifferenceFullyResolved.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122148 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18Remove the MCObjectFormat class.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17MC/Mach-O: On second thought, use a custom hook for enabling aggressiveDaniel Dunbar
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). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122042 91177308-0d34-0410-b5e6-96231b3b80d8
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