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| * Add the gnu pubnames and pubtypes sections to the mc object fileEric Christopher2013-09-091-0/+10
| | | | | | | | | | | | handling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190344 91177308-0d34-0410-b5e6-96231b3b80d8
| * Call generateCompactUnwindEncodings() right before we need to output the ↵Bill Wendling2013-09-092-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | frame information. There are more than one paths to where the frame information is emitted. Place the call to generateCompactUnwindEncodings() into the method which outputs the frame information, thus ensuring that the encoding is there for every path. This involved threading the MCAsmBackend object through to this method. <rdar://problem/13623355> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190335 91177308-0d34-0410-b5e6-96231b3b80d8
| * Generate compact unwind encoding from CFI directives.Bill Wendling2013-09-092-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We used to generate the compact unwind encoding from the machine instructions. However, this had the problem that if the user used `-save-temps' or compiled their hand-written `.s' file (with CFI directives), we wouldn't generate the compact unwind encoding. Move the algorithm that generates the compact unwind encoding into the MCAsmBackend. This way we can generate the encoding whether the code is from a `.ll' or `.s' file. <rdar://problem/13623355> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190290 91177308-0d34-0410-b5e6-96231b3b80d8
| * Run clang-format on these header files. Part of a WIP.Bill Wendling2013-09-072-653/+638
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190250 91177308-0d34-0410-b5e6-96231b3b80d8
| * Remove 'param' label from comments. They aren't used properly here.Bill Wendling2013-09-041-15/+14
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189970 91177308-0d34-0410-b5e6-96231b3b80d8
| * MCDwarf.h: Prune a few stray \param(s). [-Wdocumentation]NAKAMURA Takumi2013-09-041-3/+3
| | | | | | | | | | | | \param should be used to describe individual parameters. Use a command like \a or \c for visual enhancements. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189905 91177308-0d34-0410-b5e6-96231b3b80d8
| * Add comments to the CFI instructions and reformat with clang-format. No ↵Bill Wendling2013-09-031-360/+398
| | | | | | | | | | | | functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189864 91177308-0d34-0410-b5e6-96231b3b80d8
| * [MC] Revert part of my previous change, I was a bit overzealous.Joey Gouly2013-09-031-3/+3
| | | | | | | | | | | | | | A change to test the previous commit will be coming soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189825 91177308-0d34-0410-b5e6-96231b3b80d8
| * [MC] AvailableFeatures needs to be a uint64_t to match FeatureBits in ↵Joey Gouly2013-09-032-6/+6
| | | | | | | | | | | | MCSubtargetInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189815 91177308-0d34-0410-b5e6-96231b3b80d8
| * Move everything depending on Object/MachOFormat.h over to Support/MachO.h.Charles Davis2013-09-011-6/+5
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189728 91177308-0d34-0410-b5e6-96231b3b80d8
| * Remove support for the .debug_inlined section. No known softwareEric Christopher2013-08-281-7/+0
| | | | | | | | | | | | in use supports it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189439 91177308-0d34-0410-b5e6-96231b3b80d8
| * Given target assembler parsers a chance to handle variant expressionsJoerg Sonnenberger2013-08-271-0/+7
| | | | | | | | | | | | | | | | first. Use this to turn the PPC modifiers into PPC specific expressions, allowing them to work on constants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189400 91177308-0d34-0410-b5e6-96231b3b80d8
| * Revert "Fix the build broken by r189315." and "Move everything depending on ↵Charles Davis2013-08-271-19/+6
| | | | | | | | | | | | | | | | | | Object/MachOFormat.h over to Support/MachO.h." This reverts commits r189319 and r189315. r189315 broke some tests on what I believe are big-endian platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189321 91177308-0d34-0410-b5e6-96231b3b80d8
| * Move everything depending on Object/MachOFormat.h over to Support/MachO.h.Charles Davis2013-08-271-6/+19
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189315 91177308-0d34-0410-b5e6-96231b3b80d8
| * Fix #include guard.Jakub Staszak2013-08-251-2/+2
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189199 91177308-0d34-0410-b5e6-96231b3b80d8
| * MCFunction.h: Prune \returns to fix a warning in r188881. [-Wdocumentation]NAKAMURA Takumi2013-08-211-1/+0
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188897 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Add YAML MCModule representation to enable MC CFG testing.Ahmed Bougacha2013-08-211-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Like yaml ObjectFiles, this will be very useful for testing the MC CFG implementation (mostly MCObjectDisassembler), by matching the output with YAML, and for potential users of the MC CFG, by using it as an input. There isn't much to the actual format, it is just a serialization of the MCModule class. Of note: - Basic block references (pred/succ, ..) are represented by the BB's start address. - Just as in the MC CFG, instructions are MCInsts with a size. - Operands have a prefix representing the type (only register and immediate supported here). - Instruction opcodes are represented by their names; enum values aren't stable, enum names mostly are: usually, a change to a name would need lots of changes in the backend anyway. Same with registers. All in all, an example is better than 1000 words, here goes: A simple binary: Disassembly of section __TEXT,__text: _main: 100000f9c: 48 8b 46 08 movq 8(%rsi), %rax 100000fa0: 0f be 00 movsbl (%rax), %eax 100000fa3: 3b 04 25 48 00 00 00 cmpl 72, %eax 100000faa: 0f 8c 07 00 00 00 jl 7 <.Lend> 100000fb0: 2b 04 25 48 00 00 00 subl 72, %eax .Lend: 100000fb7: c3 ret And the (pretty verbose) generated YAML: --- Atoms: - StartAddress: 0x0000000100000F9C Size: 20 Type: Text Content: - Inst: MOV64rm Size: 4 Ops: [ RRAX, RRSI, I1, R, I8, R ] - Inst: MOVSX32rm8 Size: 3 Ops: [ REAX, RRAX, I1, R, I0, R ] - Inst: CMP32rm Size: 7 Ops: [ REAX, R, I1, R, I72, R ] - Inst: JL_4 Size: 6 Ops: [ I7 ] - StartAddress: 0x0000000100000FB0 Size: 7 Type: Text Content: - Inst: SUB32rm Size: 7 Ops: [ REAX, REAX, R, I1, R, I72, R ] - StartAddress: 0x0000000100000FB7 Size: 1 Type: Text Content: - Inst: RET Size: 1 Ops: [ ] Functions: - Name: __text BasicBlocks: - Address: 0x0000000100000F9C Preds: [ ] Succs: [ 0x0000000100000FB7, 0x0000000100000FB0 ] <snip> ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188890 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Support disassembly at arbitrary addresses in MCObjectDisassembler.Ahmed Bougacha2013-08-211-0/+30
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188889 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Add an MCObjectSymbolizer in the MCObjectDisassembler.Ahmed Bougacha2013-08-211-0/+9
| | | | | | | | | | | | Used to detect calls to function symbol stubs (future commit). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188887 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Add MCObjectDisassembler Mach-O implementation.Ahmed Bougacha2013-08-211-0/+31
| | | | | | | | | | | | | | | | | | | | Supports: - entrypoint, using LC_MAIN. - static ctors/dtors, using __mod_{init,exit}_func - translation between effective and object load address, using dyld's VM address slide. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188886 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Add "dynamic disassembly" support to MCObjectDisassembler.Ahmed Bougacha2013-08-211-0/+16
| | | | | | | | | | | | | | | | It can now disassemble code in situations where the effective load address is different than the load address declared in the object file. This happens for PIC, hence "dynamic". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188884 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Add MCObjectDisassembler support for entrypoint + static ctors.Ahmed Bougacha2013-08-211-4/+24
| | | | | | | | | | | | For now, this isn't implemented for any format. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188882 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Split MCBasicBlocks to mirror atom splitting.Ahmed Bougacha2013-08-212-0/+23
| | | | | | | | | | | | | | | | When an MCTextAtom is split, all MCBasicBlocks backed by it are automatically split, with a fallthrough between both blocks, and the successors moved to the second block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188881 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Add a few needed methods, mainly MCModule::findFirstAtomAfter.Ahmed Bougacha2013-08-212-0/+10
| | | | | | | | | | | | While there, do some minor cleanup. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188880 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC: ObjectSymbolizer can now recognize external function stubs.Ahmed Bougacha2013-08-211-0/+5
| | | | | | | | | | | | | | Only implemented in the Mach-O ObjectSymbolizer. The testcase sadly introduces a new binary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188879 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC: Refactor ObjectSymbolizer to make relocation/section info generation lazy.Ahmed Bougacha2013-08-211-13/+14
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188878 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Add entrypoint address to MCModule.Ahmed Bougacha2013-08-211-1/+7
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188877 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Add more MCFunction container methods (find, empty).Ahmed Bougacha2013-08-211-2/+8
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188876 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Keep pointer to parent MCModule in created MCFunctions.Ahmed Bougacha2013-08-212-5/+7
| | | | | | | | | | | | Also, drive-by cleaning around createFunction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188875 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: uint64_t -> size_t for vector size.Ahmed Bougacha2013-08-211-1/+1
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188872 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC CFG: Add a getter for MCDataAtom's data array.Ahmed Bougacha2013-08-211-1/+5
| | | | | | | | | | | | While there, switch to new-style documentation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188871 91177308-0d34-0410-b5e6-96231b3b80d8
| * Support C99 hexadecimal floating-point literals in assemblyTim Northover2013-08-141-0/+1
| | | | | | | | | | | | | | | | It's useful to be able to write down floating-point numbers without having to worry about what they'll be rounded to (as C99 discovered), this extends that ability to the MC assembly parsers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188370 91177308-0d34-0410-b5e6-96231b3b80d8
| * [CodeGen] prevent abnormal on invalid attributesSaleem Abdulrasool2013-08-092-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Currently, when an invalid attribute is encountered on processing a .s file, clang will abort due to llvm_unreachable. Invalid user input should not cause an abnormal termination of the compiler. Change the interface to return a boolean to indicate the failure as a first step towards improving hanlding of malformed user input to clang. Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188047 91177308-0d34-0410-b5e6-96231b3b80d8
* | Merge commit '10251753b6897adcd22cc981c0cc42f348c109de' into merge-20130807Stephen Hines2013-08-0712-133/+176
|\ \ | |/ | | | | | | | | | | | | Conflicts: lib/Archive/ArchiveReader.cpp lib/Support/Unix/PathV2.inc Change-Id: I29d8c1e321a4a380b6013f00bac6a8e4b593cc4e
| * Fixed the Intel-syntax X86 disassembler to respect the (existing) option for ↵Daniel Malea2013-08-011-2/+20
| | | | | | | | | | | | | | | | | | | | | | hexadecimal immediates, to match AT&T syntax. This also brings a new option for C-vs-MASM-style hex. Patch by Richard Mitton Reviewed: http://llvm-reviews.chandlerc.com/D1243 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187614 91177308-0d34-0410-b5e6-96231b3b80d8
| * Split generated asm mnemonic matching table into a separate table for each ↵Craig Topper2013-07-241-1/+1
| | | | | | | | | | | | | | | | | | | | asm variant. This removes the need to store the asm variant in each row of the single table that existed before. Shaves ~16K off the size of X86AsmParser.o. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187026 91177308-0d34-0410-b5e6-96231b3b80d8
| * Revert "Remove use of asymmetric std::lower_bound comparator."Ahmed Bougacha2013-07-231-5/+0
| | | | | | | | | | | | | | This reverts commit r185676. Originally done because of VS 2008. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186969 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC: mayAffectControlFlow() handling for variadic instructions.Jim Grosbach2013-07-221-2/+14
| | | | | | | | | | | | | | | | | | | | | | Variadic MC instructions don't note whether the variable operands are uses or defs, so mayAffectControlFlow() must conservatively assume they are defs and return true if the PC is in the operand list. rdar://14488628 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186846 91177308-0d34-0410-b5e6-96231b3b80d8
| * [PowerPC] Revert r185476 and fix up TLS variant kindsUlrich Weigand2013-07-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the commit message to r185476 I wrote: >The PowerPC-specific modifiers VK_PPC_TLSGD and VK_PPC_TLSLD >correspond exactly to the generic modifiers VK_TLSGD and VK_TLSLD. >This causes some confusion with the asm parser, since VK_PPC_TLSGD >is output as @tlsgd, which is then read back in as VK_TLSGD. > >To avoid this confusion, this patch removes the PowerPC-specific >modifiers and uses the generic modifiers throughout. (The only >drawback is that the generic modifiers are printed in upper case >while the usual convention on PowerPC is to use lower-case modifiers. >But this is just a cosmetic issue.) This was unfortunately incorrect, there is is fact another, serious drawback to using the default VK_TLSLD/VK_TLSGD variant kinds: using these causes ELFObjectWriter::RelocNeedsGOT to return true, which in turn causes the ELFObjectWriter to emit an undefined reference to _GLOBAL_OFFSET_TABLE_. This is a problem on powerpc64, because it uses the TOC instead of the GOT, and the linker does not provide _GLOBAL_OFFSET_TABLE_, so the symbol remains undefined. This means shared libraries using TLS built with the integrated assembler are currently broken. While the whole RelocNeedsGOT / _GLOBAL_OFFSET_TABLE_ situation probably ought to be properly fixed at some point, for now I'm simply reverting the r185476 commit. Now this in turn exposes the breakage of handling @tlsgd/@tlsld in the asm parser that this check-in was originally intended to fix. To avoid this regression, I'm also adding a different fix for this problem: while common code now parses @tlsgd as VK_TLSGD, a special hack in the asm parser translates this code to the platform-specific VK_PPC_TLSGD that the back-end now expects. While this is not really pretty, it's self-contained and shouldn't hurt anything else for now. One the underlying problem is fixed, this hack can be reverted again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185945 91177308-0d34-0410-b5e6-96231b3b80d8
| * MC: Implement COFF .linkonce directiveNico Rieck2013-07-062-13/+26
| | | | | | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185753 91177308-0d34-0410-b5e6-96231b3b80d8
| * Remove use of asymmetric std::lower_bound comparator.Ahmed Bougacha2013-07-041-0/+5
| | | | | | | | | | | | VS 2008 doesn't like it when in debug mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185676 91177308-0d34-0410-b5e6-96231b3b80d8
| * [PowerPC] Remove VK_PPC_TLSGD and VK_PPC_TLSLDUlrich Weigand2013-07-021-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PowerPC-specific modifiers VK_PPC_TLSGD and VK_PPC_TLSLD correspond exactly to the generic modifiers VK_TLSGD and VK_TLSLD. This causes some confusion with the asm parser, since VK_PPC_TLSGD is output as @tlsgd, which is then read back in as VK_TLSGD. To avoid this confusion, this patch removes the PowerPC-specific modifiers and uses the generic modifiers throughout. (The only drawback is that the generic modifiers are printed in upper case while the usual convention on PowerPC is to use lower-case modifiers. But this is just a cosmetic issue.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185476 91177308-0d34-0410-b5e6-96231b3b80d8
| * Remove address spaces from MC.Rafael Espindola2013-07-024-40/+24
| | | | | | | | | | | | | | | | This is dead code since PIC16 was removed in 2010. The result was an odd mix, where some parts would carefully pass it along and others would assert it was zero (most of the object streamer for example). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185436 91177308-0d34-0410-b5e6-96231b3b80d8
| * [PowerPC] Add support for TLS data relocationsUlrich Weigand2013-07-011-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | This adds support for TLS data relocations and modifiers: .quad target@dtpmod .quad target@tprel .quad target@dtprel Currently exploited by the asm parser only. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185394 91177308-0d34-0410-b5e6-96231b3b80d8
| * Use MCFillFragment for zero-initialized data.Serge Pavlov2013-06-272-5/+4
| | | | | | | | | | | | | | | | | | It fixes PR16338 (ICE when compiling very large two-dimensional array). Differential Revision: http://llvm-reviews.chandlerc.com/D1043 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185080 91177308-0d34-0410-b5e6-96231b3b80d8
| * [PowerPC] Support @got modifierUlrich Weigand2013-06-251-0/+3
| | | | | | | | | | | | | | | | | | Add VK_... values and relocation types necessary to support the @got family of modifiers. Used by the asm parser only. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184860 91177308-0d34-0410-b5e6-96231b3b80d8
| * DebugInfo: PR14404: Avoid truncating 64 bit values into 32 bits for ↵David Blaikie2013-06-231-2/+2
| | | | | | | | | | | | ULEB128/SLEB128 generation git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184669 91177308-0d34-0410-b5e6-96231b3b80d8
| * [PowerPC] Support various tls-related modifiersUlrich Weigand2013-06-211-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | The current code base only supports the minimum set of tls-related relocations and @modifiers that are necessary to support compiler- generated code. This patch extends this to the full set defined in the ABI (and supported by the GNU assembler) for the benefit of the assembler parser. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184551 91177308-0d34-0410-b5e6-96231b3b80d8
| * [PowerPC] Support @higher et.al. modifiersUlrich Weigand2013-06-211-0/+4
| | | | | | | | | | | | | | | | | | This adds support for the @higher, @highera, @highest, and @highesta modifers, including some missing relocation types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184550 91177308-0d34-0410-b5e6-96231b3b80d8
| * [PowerPC] Support @toc@h modifierUlrich Weigand2013-06-211-0/+1
| | | | | | | | | | | | | | | | | | This adds the relocation type and other necessary infrastructure to use the @toc@h modifier in the assembler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184549 91177308-0d34-0410-b5e6-96231b3b80d8
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