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* tools: fix heap-buffer-overrun detected via ASANSaleem Abdulrasool2014-04-141-0/+3
| | | | | | | | | | Once the auxiliary fields relating to the filename have been inspected, any following auxiliary fields need not be visited as they have been consumed (the following fields comprise the filepath as a single unit). Adjust the test to catch this even if ASAN is not enabled. llvm-svn: 206190
* Teach llvm-lto to respect the given RelocModel.James Molloy2014-04-141-1/+14
| | | | | | Patch by Nick Tomlinson! llvm-svn: 206177
* tools: simplify symbol handling in objdumpSaleem Abdulrasool2014-04-141-25/+28
| | | | | | | | | Rather than switching behaviour on whether a previous symbol has an auxiliary symbol record for the next count of elements, simply iterate over the auxiliary symbols right after processing the current symbol entry. This makes the behaviour much simpler to follow and similar to llvm-readobj and yaml2obj. llvm-svn: 206146
* tools: address possible non-null terminated filenamesSaleem Abdulrasool2014-04-142-16/+11
| | | | | | | | | If a filename is a multiple of 18 characters, there will be no null-terminator. This will result in an invalid access by the constructed StringRef. Add a test case to exercise this and fix that handling. Address this same vulnerability in llvm-readobj as well. llvm-svn: 206145
* tools: remove duplication of coff_aux_fileSaleem Abdulrasool2014-04-131-9/+1
| | | | | | | Now that COFF::coff_aux_file is defined, use that rather than redefining the type locally. llvm-svn: 206140
* tools: avoid a string duplicationSaleem Abdulrasool2014-04-131-8/+4
| | | | | | | | | The auxiliary file records are contiguous and only contain the filename. Construct a StringRef directly rather than copying to a temporary buffer. Suggested by majnemer on IRC! llvm-svn: 206139
* tools: teach objdump about FILE aux recordsSaleem Abdulrasool2014-04-131-4/+26
| | | | | | | | | Add support for file auxiliary symbol entries in COFF symbol tables. A COFF symbol table with a FILE entry is followed by sizeof(__FILE__) / 18 auxiliary symbol records which contain the filename. Read them and form the original filename that the record contains. Then display the name in the output. llvm-svn: 206126
* tools: remove unnecessary copy of array_lengthofSaleem Abdulrasool2014-04-122-46/+67
| | | | llvm-svn: 206115
* llc: Add support for -mcpu=native.Jim Grosbach2014-04-121-0/+6
| | | | | | | When -mcpu=native is passed, autodetect the host CPU and pass that as the CPU name to the TargetMachine factory method. llvm-svn: 206095
* [yaml2obj][ELF] ELF Relocations Support.Simon Atanasyan2014-04-111-16/+118
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch implements support for both relocation record formats: Elf_Rel and Elf_Rela. It is possible to define relocation against symbol only. Relocations against sections will be implemented later. Now yaml2obj recognizes X86_64, MIPS and Hexagon relocation types. Example of relocation section specification: Sections: - Name: .text Type: SHT_PROGBITS Content: "0000000000000000" AddressAlign: 16 Flags: [SHF_ALLOC] - Name: .rel.text Type: SHT_REL Info: .text AddressAlign: 4 Relocations: - Offset: 0x1 Symbol: glob1 Type: R_MIPS_32 - Offset: 0x2 Symbol: glob2 Type: R_MIPS_CALL16 The patch reviewed by Michael Spencer, Sean Silva, Shankar Easwaran. llvm-svn: 206017
* [yaml2obj][ELF] Rename class SectionNameToIdxMap => NameToIdxMap. It canSimon Atanasyan2014-04-061-10/+10
| | | | | | | | be used for indexing not only section's names. No functional changes. llvm-svn: 205687
* Revert "Fix a nomenclature error in llvm-nm."Rafael Espindola2014-04-031-27/+27
| | | | | | | | | | | | | | | | This reverts commit r205479. It turns out that nm does use addresses, it is just that every reasonable relocatable ELF object has sections with address 0. I have no idea if those exist in reality, but it at least it shows that llvm-nm should use the name address. The added test was includes an unusual .o file with non 0 section addresses. I created it by hacking ELFObjectWriter.cpp. Really sorry for the churn. llvm-svn: 205493
* Fix a nomenclature error in llvm-nm.Rafael Espindola2014-04-021-27/+27
| | | | | | | | | | | What llvm-nm prints depends on the file format. On ELF for example, if the file is relocatable, it prints offsets. If it is not, it prints addresses. Since it doesn't really need to care what it is that it is printing, use the generic term value. Fix or implement getSymbolValue to keep llvm-nm working. llvm-svn: 205479
* Revert "Reapply "LTO: add API to set strategy for -internalize""Duncan P. N. Exon Smith2014-04-021-7/+0
| | | | | | | | | | | This reverts commit r199244. Conflicts: include/llvm-c/lto.h include/llvm/LTO/LTOCodeGenerator.h lib/LTO/LTOCodeGenerator.cpp llvm-svn: 205471
* [yaml2obj][ELF] Convert some static functions into class members toSimon Atanasyan2014-04-021-149/+159
| | | | | | | | reduce number of arguments. No functional changes. llvm-svn: 205434
* [yaml2obj][ELF] Remove unused typedef.Simon Atanasyan2014-04-021-1/+0
| | | | | | No functional changes. llvm-svn: 205433
* [yaml2obj][ELF] Move section index to the ELFState class.Simon Atanasyan2014-04-021-32/+39
| | | | | | No functional changes. llvm-svn: 205432
* [yaml2obj][ELF] Remove relationship between ELFStateSimon Atanasyan2014-04-021-13/+6
| | | | | | | | | and ContiguousBlobAccumulator classes. Pass ContiguousBlobAccumulator to the handleSymtabSectionHeader function directly. No functional changes. llvm-svn: 205431
* [yaml2obj] Add support for ELF e_flags.Daniel Sanders2014-03-311-0/+1
| | | | | | | | | | | | | | | | Summary: The FileHeader mapping now accepts an optional Flags sequence that accepts the EF_<arch>_<flag> constants. When not given, Flags defaults to zero. Reviewers: atanasyan Reviewed By: atanasyan CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3213 llvm-svn: 205173
* Windows: canonicalise the default windows tripleSaleem Abdulrasool2014-03-291-1/+2
| | | | | | | Canonicalise the default triple that is used on Windows. This should hopefully fix the MSVC buildbots. llvm-svn: 205070
* Add missing include (for r205050)David Blaikie2014-03-281-0/+1
| | | | llvm-svn: 205053
* llvm-mc: error when -compress-debug-sections is requested and zlib is not linkedDavid Blaikie2014-03-281-1/+6
| | | | | | | | | | This is a bit of a stab in the dark, since I have zlib on my machine. Just going to bounce it off the bots & see if it sticks. Do we have some convention for negative REQUIRES: checks? Or do I just need to add a feature like I've done here? llvm-svn: 205050
* DebugInfo: Support for compressed debug info sectionsDavid Blaikie2014-03-271-0/+6
| | | | | | | | | | | | | | | | | | | 1) When creating a .debug_* section and instead create a .zdebug_ section. 2) When creating a fragment in a .zdebug_* section, make it a compressed fragment. 3) When computing the size of a compressed section, compress the data and use the size of the compressed data. 4) Emit the compressed bytes. Also, check that only if a section has a compressed fragment, then that is the only fragment in the section. Assert-fail if the fragment's data is modified after it is compressed. Initial review on llvm-commits by Eric Christopher and Rafael Espindola. llvm-svn: 204958
* Update MCSymbolizer and its subclasses' constructors to reflect the fact thatLang Hames2014-03-271-1/+2
| | | | | | they take ownership of the RelocationInfo they're constructed with. llvm-svn: 204891
* Create .symtab_shndxr only when needed.Rafael Espindola2014-03-251-2/+4
| | | | | | | | | | | | | | | | | | | | | | | We need .symtab_shndxr if and only if a symbol references a section with an index >= 0xff00. The old code was trying to figure out if the section was needed ahead of time, making it a fairly dependent on the code actually writing the table. It was also somewhat conservative and would create the section in cases where it was not needed. If I remember correctly, the old structure was there so that the sections were created in the same order gas creates them. That was valuable when MC's support for ELF was new and we tested with elf-dump.py. This patch refactors the symbol table creation to another class and makes it obvious that .symtab_shndxr is really only created when we are about to output a reference to a section index >= 0xff00. While here, also improve the tests to use macros. One file is one section short of needing .symtab_shndxr, the second one has just the right number. llvm-svn: 204769
* DebugInfo: Support debug_loc under fissionDavid Blaikie2014-03-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | Implement debug_loc.dwo, as well as llvm-dwarfdump support for dumping this section. Outlined in the DWARF5 spec and http://gcc.gnu.org/wiki/DebugFission the debug_loc.dwo section has more variation than the standard debug_loc, allowing 3 different forms of entry (plus the end of list entry). GCC seems to, and Clang certainly, only use one form, so I've just implemented dumping support for that for now. It wasn't immediately obvious that there was a good refactoring to share the implementation of dumping support between debug_loc and debug_loc.dwo, so they're separate for now - ideas welcome or I may come back to it at some point. As per a comment in the code, we could choose different forms that may reduce the number of debug_addr entries we emit, but that will require further study. llvm-svn: 204697
* VS integration installer: set SUCCESS=1 if we find VS 2013Hans Wennborg2014-03-241-2/+3
| | | | | | | | | | Previously we would print an error message on machines where the only VS version we find is 2013, even though we successfully install the integration files for it. Also, we shouldn't have two END labels. llvm-svn: 204629
* Teach llvm-readobj to print human friendly description of reserved sections.Rafael Espindola2014-03-241-2/+22
| | | | llvm-svn: 204584
* llvm-profdata: Check for bad data in the show commandJustin Bogner2014-03-231-0/+2
| | | | llvm-svn: 204573
* llvm-profdata: Use Format.h instead of handrolling a formatterJustin Bogner2014-03-231-19/+2
| | | | llvm-svn: 204571
* llvm-profdata doesn't require LLVMCore.NAKAMURA Takumi2014-03-232-2/+2
| | | | llvm-svn: 204552
* llvm-profdata: Avoid F_Text in "merge" for now, since "llvm-profdata show" ↵NAKAMURA Takumi2014-03-221-1/+2
| | | | | | | is confused with CRLF. FIXME: line_iterator should be tolerant of CR. llvm-svn: 204540
* ProfileData: Introduce InstrProfWriter using the naive text formatJustin Bogner2014-03-211-35/+15
| | | | | | | | | | | This isn't a format we'll want to write out in practice, but moving it to the writer library simplifies llvm-profdata and isolates it from further changes to the format. This also allows us to update the tests to not rely on the text output format. llvm-svn: 204489
* llvm-profdata: Implement show commandJustin Bogner2014-03-211-2/+98
| | | | | | | The `llvm-profdata show` command summarizes a profdata file's contents in a human readable format. llvm-svn: 204485
* ProfileData: Introduce the InstrProfReader interface and a text readerJustin Bogner2014-03-214-71/+37
| | | | | | | | | | This introduces the ProfileData library and updates llvm-profdata to use this library for reading profiles. InstrProfReader is an abstract base class that will be subclassed for both the raw instrprof data from compiler-rt and the efficient instrprof format that will be used for PGO. llvm-svn: 204482
* llvm-objdump output hex to match binutils' objdumpGreg Fitzgerald2014-03-201-2/+8
| | | | | | Patch by Ted Woodward llvm-svn: 204409
* Remove llvm-mc's disable-cfi option.Rafael Espindola2014-03-201-7/+4
| | | | | | It was dead. llvm-svn: 204404
* llvm-profdata: Remove an empty commentJustin Bogner2014-03-201-1/+0
| | | | llvm-svn: 204370
* Object: Output .file symbols properlyDavid Majnemer2014-03-201-1/+2
| | | | | | | obj2yaml would emit the NUL bytes padding the auxiliary file symbol records. Trimming them looks nicer. llvm-svn: 204314
* Object: Abstract out the determination of function line symbolsDavid Majnemer2014-03-201-1/+1
| | | | | | No functionality change. llvm-svn: 204313
* Object: Provide a richer means of describing auxiliary symbolsDavid Majnemer2014-03-195-31/+192
| | | | | | | | | | | | | | | | The current state of affairs has auxiliary symbols described as a big bag of bytes. This is less than satisfying, it detracts from the YAML file as being human readable. Instead, allow for symbols to optionally contain their auxiliary data. This allows us to have a much higher level way of describing things like weak symbols, function definitions and section definitions. This depends on D3105. Differential Revision: http://llvm-reviews.chandlerc.com/D3092 llvm-svn: 204214
* Object: Move auxiliary symbol definitions from llvm-readobjDavid Majnemer2014-03-191-26/+7
| | | | | | | | | | | | Summary: These definitions are useful to other aspects of LLVM, move them out. Reviewers: rafael, nrieck, ruiu CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3105 llvm-svn: 204213
* llvm-profdata: Make "merge" into a subcommand.Justin Bogner2014-03-191-16/+51
| | | | | | We'll be adding a few more subcommands in the near future. llvm-svn: 204211
* llvm-profdata: Update to use the naive text format with function hashJustin Bogner2014-03-191-101/+53
| | | | | | This also uses line_iterator to simplify the parsing logic. llvm-svn: 204210
* Object/COFF: Add function to check if section number is reserved one.Rui Ueyama2014-03-182-4/+3
| | | | | | Differential Revision: http://llvm-reviews.chandlerc.com/D3103 llvm-svn: 204199
* Darwin: Add assembler directives to create version-min load commands.Jim Grosbach2014-03-181-0/+12
| | | | | | | | | | | | Allow object files to be tagged with a version-min load command for iOS or MacOSX. Teach macho-dump to understand the version-min load commands for testcases. rdar://11337778 llvm-svn: 204190
* Use early returns to reduce nesting.Rui Ueyama2014-03-181-69/+69
| | | | llvm-svn: 204171
* [C++11] Change the interface of getCOFF{Section,Relocation,Symbol} to make ↵Alexey Samsonov2014-03-184-69/+54
| | | | | | | | | | | | | | it work with range-based for loops. Reviewers: ruiu Reviewed By: ruiu CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3097 llvm-svn: 204120
* [C++11] Introduce ObjectFile::symbols() to use range-based loops.Alexey Samsonov2014-03-176-67/+62
| | | | | | | | | | | | Reviewers: rafael Reviewed By: rafael CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3081 llvm-svn: 204031
* llvm-readobj: Print referred symbol name for CLR token definitionNico Rieck2014-03-171-1/+10
| | | | llvm-svn: 204024
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