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* Fix a crash that occurs when PWD is invalid.Andrew Trick2013-12-101-2/+2
| | | | | | | | | | | | | | | | | | | | MCJIT needs to be able to run in hostile environments, even when PWD is invalid. There's no need to crash MCJIT in this case. The obvious fix is to simply leave MCContext's CompilationDir empty when PWD can't be determined. This way, MCJIT clients, and other clients that link with LLVM don’t need a valid working directory. If we do want to guarantee valid CompilationDir, that should be done only for clients of getCompilationDir(). This is as simple as checking for an empty string. The only current use of getCompilationDir is EmitGenDwarfInfo, which won’t conceivably run with an invalid working dir. However, in the purely hypothetically and untestable case that this happens, the AT_comp_dir will be omitted from the compilation_unit DIE. llvm-svn: 196874
* whitespaceAndrew Trick2013-12-101-2/+2
| | | | llvm-svn: 196873
* Correct word hyphenationsAlp Toker2013-12-051-1/+1
| | | | | | | This patch tries to avoid unrelated changes other than fixing a few hyphen-related ambiguities and contractions in nearby lines. llvm-svn: 196471
* Avoid buffer copies when a Twine already is a StringRef.David Blaikie2013-12-031-2/+1
| | | | llvm-svn: 196301
* Support multiple COFF sections with the same name but different COMDAT.Rafael Espindola2013-11-191-13/+31
| | | | | | | | | | | | | | | | | | This is the first step to fix pr17918. It extends the .section directive a bit, inspired by what the ELF one looks like. The problem with using linkonce is that given .section foo .linkonce.... .section foo .linkonce we would already have switched sections when getting to .linkonce. The cleanest solution seems to be to add the comdat information in the .section itself. llvm-svn: 195148
* MC: Support multiple sections with the same name in the same comdat groupDavid Blaikie2013-10-221-6/+12
| | | | | | Code review by Eric Christopher and Rafael Espindola. llvm-svn: 193209
* MC: Implement COFF .linkonce directiveNico Rieck2013-07-061-5/+13
| | | | llvm-svn: 185753
* Use pointers to the MCAsmInfo and MCRegInfo.Bill Wendling2013-06-181-5/+5
| | | | | | | | | Someone may want to do something crazy, like replace these objects if they change or something. No functionality change intended. llvm-svn: 184175
* Silence warning in Release builds.Benjamin Kramer2013-06-161-0/+1
| | | | llvm-svn: 184059
* Replace use of PathV1.h in MCContext.cpp.Rafael Espindola2013-06-141-2/+4
| | | | | | GetCurrentDirectory is now unused. Remove it. llvm-svn: 184003
* Don't use PathV1.h in Signals.h.Rafael Espindola2013-06-131-0/+1
| | | | llvm-svn: 183947
* Debug Info: use SmallVector instead of std::vector in MCDwarfDirsCUMap and ↵Manman Ren2013-03-121-3/+3
| | | | | | MCDwarfFilesCUMap llvm-svn: 176893
* Debug Info: store the files and directories for each compile unit.Manman Ren2013-03-071-4/+7
| | | | | | | | | | | | | | We now emit a line table for each compile unit. To reduce the prologue size of each line table, the files and directories used by each compile unit are stored in std::map<unsigned, std::vector< > > instead of std::vector< >. The prologue for a lto'ed image can be as big as 93K. Duplicating 93K for each compile unit causes a huge increase of debug info. With this patch, each prologue will only emit the files required by the compile unit. rdar://problem/13342023 llvm-svn: 176605
* clear new map and initialize new variablePedro Artigas2013-02-201-0/+2
| | | | llvm-svn: 175578
* Dwarf: support for LTO where a single object file can have multiple line tablesManman Ren2013-02-051-1/+1
| | | | | | | | | We generate one line table for each compilation unit in the object file. Reviewed by Eric and Kevin. rdar://problem/13067005 llvm-svn: 174445
* Formatting.Eric Christopher2012-12-181-1/+1
| | | | llvm-svn: 170394
* Add support for passing -main-file-name all the way through toEric Christopher2012-12-181-0/+6
| | | | | | | | the assembler. Part of PR14624 llvm-svn: 170390
* Prepare LLVM to fix PR14625, exposing a hook in MCContext to manage theChandler Carruth2012-12-171-1/+2
| | | | | | | | | | compilation directory. This defaults to the current working directory, just as it always has, but now an assembler can choose to override it with a custom directory. I've taught llvm-mc about this option and added a test case. llvm-svn: 170371
* Make the MCStreamer have a reset method and call that after finalization of ↵Pedro Artigas2012-12-121-19/+15
| | | | | | | | the asm printer, also changed MCContext to a single reset only method for simplicity as requested on the list llvm-svn: 170041
* fixed valgrind issues of prior commit, this change applies r169456 changes ↵Pedro Artigas2012-12-061-8/+42
| | | | | | | | | | | | back to the tree with fixes. on darwin no valgrind issues exist in the tests that used to fail. original change description: change MCContext to work on the doInitialization/doFinalization model reviewed by Evan Cheng <evan.cheng@apple.com> llvm-svn: 169553
* Revert r169456, "change MCContext to work on the ↵NAKAMURA Takumi2012-12-061-31/+6
| | | | | | | | doInitialization/doFinalization model" It broke many builders. llvm-svn: 169462
* change MCContext to work on the doInitialization/doFinalization modelPedro Artigas2012-12-061-6/+31
| | | | | | reviewed by Evan Cheng <evan.cheng@apple.com> llvm-svn: 169456
* Use the new script to sort the includes of every file under lib.Chandler Carruth2012-12-031-7/+7
| | | | | | | | | | | | | | | | | Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] llvm-svn: 169131
* Avoid symbol name clash when filling TOC.Roman Divacky2012-09-181-0/+6
| | | | | | Patch by Adhemerval Zanella. llvm-svn: 164141
* MCContext.cpp: Fixup for my odd previous commit. No functional changes.NAKAMURA Takumi2012-07-031-1/+1
| | | | llvm-svn: 159645
* MCContext::GetDwarfFile(): Make FileName parsing tolerant of DOSish pathsep ↵NAKAMURA Takumi2012-07-031-5/+5
| | | | | | | | with PathV2. It fixes failure in test/MC/MachO/gen-dwarf.s on Win32 w/o bash. llvm-svn: 159640
* Add simple support for keeping MCFixup source information.Jim Grosbach2012-01-261-0/+19
| | | | | | | Can be used to issue more user friendly diagnostics for faulty relocation constructs and such. llvm-svn: 149092
* Add SourceMgr to MCContext for backend diagnostics.Jim Grosbach2012-01-261-2/+2
| | | | llvm-svn: 149090
* Fixed a bug in the code to create a dwarf file and directory table entires whenKevin Enderby2011-11-011-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | it is separating the directory part from the basename of the FileName. Noticed that this: .file 1 "dir/foo" when assembled got the two parts switched. Using the Mac OS X dwarfdump tool it can be seen easily: % dwarfdump -a a.out include_directories[ 1] = 'foo' Dir Mod Time File Len File Name ---- ---------- ---------- --------------------------- file_names[ 1] 1 0x00000000 0x00000000 dir ... Which should be: ... include_directories[ 1] = 'dir' Dir Mod Time File Len File Name ---- ---------- ---------- --------------------------- file_names[ 1] 1 0x00000000 0x00000000 foo llvm-svn: 143521
* First part of support for generating dwarf for assembly source files with theKevin Enderby2011-11-011-0/+2
| | | | | | | | | | | | -g flag. In this part we generate the .file for the source being assembled and the .loc's for the assembled instructions. The next part will be to generate the dwarf Compile Unit DIE and a dwarf subprogram DIE for each non-temporary label. Once the next part is done test cases will be added. rdar://9275556 llvm-svn: 143509
* Add support for a new extension to the .file directive:Nick Lewycky2011-10-171-15/+18
| | | | | | | | | | .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
* Hoist vector.size() computation out of the loop. No functionality change.Nick Lewycky2011-10-121-1/+2
| | | | llvm-svn: 141807
* Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.Evan Cheng2011-07-201-5/+2
| | | | | | | There is still a bit more refactoring left to do in Targets. But we are now very close to fixing all the layering issues in MC. llvm-svn: 135611
* Add MCObjectFileInfo and sink the MCSections initialization code fromEvan Cheng2011-07-201-2/+3
| | | | | | | | TargetLoweringObjectFileImpl down to MCObjectFileInfo. TargetAsmInfo is done to one last method. It's *almost* gone! llvm-svn: 135569
* Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo downEvan Cheng2011-07-181-2/+4
| | | | | | | | | to MCRegisterInfo. Also initialize the mapping at construction time. This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step towards fixing the layering violation. llvm-svn: 135424
* Make the StringMaps attached to MCContext use the MCContext's allocator; Eli Friedman2011-04-181-1/+3
| | | | | | reduces the number of calls to malloc(). llvm-svn: 129687
* Don't store Twine temporaries, it's not safe.Benjamin Kramer2011-04-091-8/+6
| | | | | | And don't append the name over and over again in the loop. llvm-svn: 129210
* MC: Add support for disabling "temporary label" behavior. Useful for debuggingDaniel Dunbar2011-03-281-3/+6
| | | | | | on Darwin. llvm-svn: 128430
* Remove duplicated code.Rafael Espindola2011-01-231-1/+2
| | | | llvm-svn: 124054
* Fixed version of 121434 with no new memory leaks.Rafael Espindola2010-12-101-2/+6
| | | | llvm-svn: 121471
* Revert my previous patch to make the valgrind bots happy.Rafael Espindola2010-12-101-3/+2
| | | | llvm-svn: 121461
* Initial support for the cfi directives. This is just enough to getRafael Espindola2010-12-091-2/+3
| | | | | | | | | | | f: .cfi_startproc nop .cfi_endproc assembled (on ELF). llvm-svn: 121434
* Rename temporary symbols if they conflict with artificial symbols createdRafael Espindola2010-12-011-10/+35
| | | | | | | | | by the assembler. This was blocking parsing any large .s produced by clang for example. Fixes PR8596. llvm-svn: 120603
* Fix Whitespace.Michael J. Spencer2010-11-261-14/+14
| | | | llvm-svn: 120166
* Add .loc methods to the streamer.Rafael Espindola2010-11-161-1/+1
| | | | | | | Next: Add support for the !HasDotLocAndDotFile case to the MCAsmStreamer and then switch codegen to use it. llvm-svn: 119384
* Parse and remember discriminators in .loc line. I try to output them withRafael Espindola2010-11-131-1/+1
| | | | | | | another patch. This lets us parse a bit more of the gcc 4.5 output. llvm-svn: 118975
* Initial comdat implementation.Rafael Espindola2010-11-111-2/+20
| | | | llvm-svn: 118805
* Use MCSectionELF in places we know we have an ELF section.Rafael Espindola2010-11-101-2/+1
| | | | llvm-svn: 118699
* Fixed version of 118639 with an extra assert to catch similar problemsRafael Espindola2010-11-091-2/+2
| | | | | | earlier. Implicit bool -> int conversions are evil! llvm-svn: 118651
* Revert previous patch. Missed a case.Rafael Espindola2010-11-091-2/+2
| | | | llvm-svn: 118645
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