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* [yaml2obj][ELF] ELF Relocations Support.Simon Atanasyan2014-04-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206017 91177308-0d34-0410-b5e6-96231b3b80d8
* YAMLIO: Allow scalars to dictate quotation rulesDavid Majnemer2014-04-10
| | | | | | | Introduce ScalarTraits::mustQuote which determines whether or not a StringRef needs quoting before it is acceptable to output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205955 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Revert "YAMLIO: Encode ambiguous hex strings explicitly""David Majnemer2014-04-09
| | | | | | | | | Don't quote octal compatible strings if they are only two wide, they aren't ambiguous. This reverts commit r205857 which reverted r205857. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205914 91177308-0d34-0410-b5e6-96231b3b80d8
* obj2yaml: Don't crash if the characteristics field is zeroDavid Majnemer2014-04-09
| | | | | | | | | obj2yaml would fail when seeing a Weak External auxiliary record with a characteristics field holding zero instead of one of IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY, IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY, or IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205911 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "YAMLIO: Encode ambiguous hex strings explicitly"Filipe Cabecinhas2014-04-09
| | | | | | | | This reverts commit r205839. It broke several tests in lld. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205857 91177308-0d34-0410-b5e6-96231b3b80d8
* YAMLIO: Encode ambiguous hex strings explicitlyDavid Majnemer2014-04-09
| | | | | | | | | | YAMLIO would turn a BinaryRef into the string 0000000004000000. However, the leading zero causes parsers to interpret it as being an octal number instead of a hexadecimal one. Instead, escape such strings as needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205839 91177308-0d34-0410-b5e6-96231b3b80d8
* obj2yaml: Use the correct relocation type for different machine typesDavid Majnemer2014-04-07
| | | | | | | | | | | | | The IO normalizer would essentially lump I386 and AMD64 relocations together. Relocation types with the same numeric value would then get mapped in appropriately. For example: IMAGE_REL_AMD64_ADDR64 and IMAGE_REL_I386_DIR16 both have a numeric value of one. We would see IMAGE_REL_I386_DIR16 in obj2yaml conversions of object files with a machine type of IMAGE_FILE_MACHINE_AMD64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205746 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement getRelocationAddress for MachO and ET_REL elf files.Rafael Espindola2014-04-03
| | | | | | With that, fix the symbolizer to work with any ELF file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205588 91177308-0d34-0410-b5e6-96231b3b80d8
* Only clear the thumb bit from function addresses.Rafael Espindola2014-04-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205500 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Fix a nomenclature error in llvm-nm."Rafael Espindola2014-04-03
| | | | | | | | | | | | | | | | 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205493 91177308-0d34-0410-b5e6-96231b3b80d8
* [yaml2obj] Add support for ELF e_flags.Daniel Sanders2014-03-31
| | | | | | | | | | | | | | | | 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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205173 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach llvm-readobj to print human friendly description of reserved sections.Rafael Espindola2014-03-24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204584 91177308-0d34-0410-b5e6-96231b3b80d8
* Object: Output .file symbols properlyDavid Majnemer2014-03-20
| | | | | | | obj2yaml would emit the NUL bytes padding the auxiliary file symbol records. Trimming them looks nicer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204314 91177308-0d34-0410-b5e6-96231b3b80d8
* Object: Provide a richer means of describing auxiliary symbolsDavid Majnemer2014-03-19
| | | | | | | | | | | | | | | | 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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204214 91177308-0d34-0410-b5e6-96231b3b80d8
* [yaml2obj][ELF] Assign name (.shstrtab) to the section holds sections names.Simon Atanasyan2014-03-14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203897 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that it is possible, use the mangler in IRObjectFile.Rafael Espindola2014-02-28
| | | | | | A really simple patch marks the end of a lot of yak shaving :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202463 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a SymbolicFile interface between Binary and ObjectFile.Rafael Espindola2014-02-21
| | | | | | | | | | | This interface allows IRObjectFile to be implemented without having dummy methods for all section and segment related methods. Both llvm-ar and llvm-nm are changed to use it. Unfortunately the mangler is still not plugged in since it requires some refactoring to make a Module hold a DataLayout. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201881 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a test for printing absolute symbols in ELF.Rafael Espindola2014-02-05
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200818 91177308-0d34-0410-b5e6-96231b3b80d8
* Small fix for llvm-nm handling of weak symbols on ELF (print 'v').Rafael Espindola2014-02-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200808 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a test for common symbols in coff.Rafael Espindola2014-02-04
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200803 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark the first dynamic elf symbol as SF_FormatSpecific.Rafael Espindola2014-01-31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200578 91177308-0d34-0410-b5e6-96231b3b80d8
* Only ELF has a dynamic symbol table. Remove it from ObjectFile.Rafael Espindola2014-01-30
| | | | | | | | | COFF has only one symbol table. MachO has a LC_DYSYMTAB, but that is not a symbol table, just extra info about the one symbol table (LC_SYMTAB). IR (coming soon) also has only one table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200488 91177308-0d34-0410-b5e6-96231b3b80d8
* This has been fixed.Rafael Espindola2014-01-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200487 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix TLS handling in ELF's getAddress and llvm-nm to print 'D' for it.Rafael Espindola2014-01-30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200433 91177308-0d34-0410-b5e6-96231b3b80d8
* We do use pipefail these days. Update the test.Rafael Espindola2014-01-29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200370 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix "llvm-objdump -d -r" to show relocations inline for ELF filesMark Seaborn2014-01-25
| | | | | | | | | | | | | | | | | | | This fixes a regression introduced by r182908, which broke llvm-objdump's ability to display relocations inline in a disassembly dump for ELF object files. That change removed a SectionRelocMap from Object/ELF.h, which we recreate in llvm-objdump.cpp. I discovered this regression via an out-of-tree test (test/NaCl/X86/pnacl-hides-sandbox-x86-64.ll) which used llvm-objdump. Note that the "Unknown" string in the test output on i386 isn't quite right, but this appears to be a pre-existing bug. Differential Revision: http://llvm-reviews.chandlerc.com/D2559 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200090 91177308-0d34-0410-b5e6-96231b3b80d8
* [Object][ELF][Mips] Print symbol name for MIPS ELF relocations.Simon Atanasyan2014-01-23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199898 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo: : not ;Bill Wendling2014-01-16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199359 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure we create a new archive by deleting any stale ones first.Rafael Espindola2014-01-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199319 91177308-0d34-0410-b5e6-96231b3b80d8
* Correct word hyphenationsAlp Toker2013-12-05
| | | | | | | This patch tries to avoid unrelated changes other than fixing a few hyphen-related ambiguities and contractions in nearby lines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196471 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-ar: Let opening a directory failed in llvm-ar.NAKAMURA Takumi2013-11-08
| | | | | | | | Linux cannot open directories with open(2), although cygwin and *bsd can. Motivation: The test, Object/directory.ll, had been failing with --target=cygwin on Linux. XFAIL was improper for host issues. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194257 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix llvm-nm to mach OS X's nm on some tests.Rafael Espindola2013-11-02
| | | | | | | There is still a long way to go for llvm-nm, but at least we now match nm's letter output in the cases we test for. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193912 91177308-0d34-0410-b5e6-96231b3b80d8
* Create an atom with just the data that failed to disassemble.Rafael Espindola2013-10-16
| | | | | | Patch by Stephen Checkoway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192827 91177308-0d34-0410-b5e6-96231b3b80d8
* [Mips] Teach llvm-readobj to print MIPS-specific ELF program headers.Simon Atanasyan2013-10-07
| | | | | | | The patch reviewed by Michael Spencer. http://llvm-reviews.chandlerc.com/D1846 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192093 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a minimal implementation of ranlib.Rafael Espindola2013-08-28
| | | | | | | | | | | | This is just enough to get "llvm-ranlib foo.a" working and tested. Making llvm-ranlib a symbolic link to llvm-ar doesn't work so well with llvm's option parsing, but ar's option parsing is mostly custom anyway. This patch also removes the -X32_64 option. Looks like it was just added in r10297 as part of implementing the current command line parsing. I can add it back (with a test) if someone really has AIX portability problems without it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189489 91177308-0d34-0410-b5e6-96231b3b80d8
* MC CFG: Remap enough for data too, analoguous to r188873.Ahmed Bougacha2013-08-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188925 91177308-0d34-0410-b5e6-96231b3b80d8
* Add testcase for r188873: MCTextAtom boundaries.Ahmed Bougacha2013-08-21
| | | | | | | Check that they are correctly computed if the last instruction is larger than 1 byte. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188923 91177308-0d34-0410-b5e6-96231b3b80d8
* Add basic YAML MC CFG testcase.Ahmed Bougacha2013-08-21
| | | | | | Drive-by llvm-objdump cleanup (don't hardcode ToolName). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188904 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: ObjectSymbolizer can now recognize external function stubs.Ahmed Bougacha2013-08-21
| | | | | | | 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
* [tests] Cleanup initialization of test suffixes.Daniel Dunbar2013-08-16
| | | | | | | | | | | | | | | | | - Instead of setting the suffixes in a bunch of places, just set one master list in the top-level config. We now only modify the suffix list in a few suites that have one particular unique suffix (.ml, .mc, .yaml, .td, .py). - Aside from removing the need for a bunch of lit.local.cfg files, this enables 4 tests that were inadvertently being skipped (one in Transforms/BranchFolding, a .s file each in DebugInfo/AArch64 and CodeGen/PowerPC, and one in CodeGen/SI which is now failing and has been XFAILED). - This commit also fixes a bunch of config files to use config.root instead of older copy-pasted code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188513 91177308-0d34-0410-b5e6-96231b3b80d8
* [Object] Split the ELF interface into 3 parts.Michael J. Spencer2013-08-08
| | | | | | | | * ELFTypes.h contains template magic for defining types based on endianess, size, and alignment. * ELFFile.h defines the ELFFile class which provides low level ELF specific access. * ELFObjectFile.h contains ELFObjectFile which uses ELFFile to implement the ObjectFile interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188022 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for the 's' operation to llvm-ar.Rafael Espindola2013-07-29
| | | | | | | | | | | | If no other operation is specified, 's' becomes an operation instead of an modifier. The s operation just creates a symbol table. It is the same as running ranlib. We assume the archive was created by a sane ar (like llvm-ar or gnu ar) and if the symbol table is present, then it is current. We use that to optimize the most common case: a broken build system that thinks it has to run ranlib. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187353 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an initial implementation of archive symbol table generation.Rafael Espindola2013-07-23
| | | | | | | | | | | The symbol table has forward references in the file. Instead of allocating a temporary buffer or counting the size and then writing, this implementation writes a dummy value first and patches it once the final value is known. There is room for performance improvement. I will implement them as soon as I get some other features (like a ranlib mode) in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186934 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark ELF's first symbol as format specific so that llvm-nm ignores it.Rafael Espindola2013-07-22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186860 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace archive members in the old position.Rafael Espindola2013-07-22
| | | | | | | | | | | | This matches gnu archive behavior and since archive member order can change which member is used, not changing the order on replacement looks like the right thing to do. This patch also refactors the logic for which archive member to keep and whether to move it to a helper function (computeInsertAction). The nesting in computeNewArchiveMembers was getting a bit confusing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186829 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't depend on a llvm-ar specific behavior.Rafael Espindola2013-07-22
| | | | | | | | GNU ar when not given the a or b modifiers replaces archive members in the same location of the old ones. I am about to implement that in llvm-ar. For now, just don't depend on the current llvm-ar behavior on this test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186823 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle replacement into a position past the original member.Rafael Espindola2013-07-21
| | | | | | | We were incorrectly computing where to insert a member if it was replacing a previous member that was before the insert point. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186792 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix inserting new elements in a specified location.Rafael Espindola2013-07-19
| | | | | | We were only handling the 'a' and 'b' options during moves before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186721 91177308-0d34-0410-b5e6-96231b3b80d8
* Split openFileForWrite into windows and unix versions.Rafael Espindola2013-07-19
| | | | | | It is similar to 186511, but for creating files for writing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186679 91177308-0d34-0410-b5e6-96231b3b80d8
* Split openFileForRead into Windows and Unix versions.Rafael Espindola2013-07-17
| | | | | | | | | | | This has some advantages: * Lets us use native, utf16 windows functions. * Easy to produce good errors on windows about trying to use a directory when we want a file. * Simplifies the unix version a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186511 91177308-0d34-0410-b5e6-96231b3b80d8