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2013-04-05Don't fetch pointers from a InMemoryStruct.Rafael Espindola
InMemoryStruct is extremely dangerous as it returns data from an internal buffer when the endiannes doesn't match. This should fix the tests on big endian hosts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178875 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-28Move an assert earlier in a file and check that the result ofEric Christopher
our bitwise compare is equal to the field we're looking for. Noticed on inspection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176296 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-12Add static cast to unsigned char whenever a character classification ↵Guy Benyei
function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175006 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-03[Object][Archive] Improve performance.Michael J. Spencer
Improve performance of iterating over children and accessing the member file buffer by caching the file size and moving code out to the header. This also makes getBuffer return a StringRef instead of a MemoryBuffer. Both fixing a memory leak and removing a malloc. This takes getBuffer from ~10% of the time in lld to unmeasurable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174272 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-03[Support] Add LLVM_IS_UNALIGNED_ACCESS_FAST.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174271 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Object: Fix errant fallthrough.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174079 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25When encountering an unknown file format, ObjectFile::createObjectFile shouldEli Bendersky
politely report it instead of running into llvm_unreachable. Also patch llvm-dwarfdump to actually check whether the file it's attempting to dump is a valid object file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173489 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-18[MC/Mach-O] Add support for linker options in Mach-O files.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172779 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-15[Object][ELF] Simplify ELFObjectFile by using ELFType.Michael J. Spencer
This simplifies the usage and implementation of ELFObjectFile by using ELFType to replace: <endianness target_endianness, std::size_t max_alignment, bool is64Bits> This does complicate the base ELF types as they must now use template template parameters to partially specialize for the 32 and 64bit cases. However these are only defined once. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172515 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14Fix More CastsDavid Greene
Fix another cast-away-const cast. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172466 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10[Object][Archive] Fix name handling with bsd style long names.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172026 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-10[Object][Archive] Apparently StringRef::getAsInteger for APInt accepts spaces.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172022 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09[Object][Archive] Use uint64_t instead of APInt. It is significantly faster.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172015 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-04[Object][ELF] Add a maximum alignment. This is used by createELFObjectFile ↵Michael J. Spencer
to create a properly aligned reader. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171520 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21Add a function to get the segment name of a section.Rafael Espindola
On MachO, sections also have segment names. When a tool looking at a .o file prints a segment name, this is what they mean. In reality, a .o has only one anonymous, segment. This patch adds a MachO only function to fetch that segment name. I named it getSectionFinalSegmentName since the main use for the name seems to be inform the linker with segment this section should go to. The patch also changes MachOObjectFile::getSectionName to return just the section name instead of computing SegmentName,SectionName. The main difference from the previous patch is that it doesn't use InMemoryStruct. It is extremely dangerous: if the endians match it returns a pointer to the file buffer, if not, it returns a pointer to an internal buffer that is overwritten in the next API call. We should change all of this code to use support::detail::packed_endian_specific_integral like ELF, but since these functions only handle strings, they work with big and little endian machines as is. I have tested this by installing ubuntu 12.10 ppc on qemu, that is why it took so long :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170838 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19Revert 170545 while I debug the ppc failures.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170547 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19Add r170095 back.Rafael Espindola
I cannot reproduce it the failures locally, so I will keep an eye at the ppc bots. This patch does add the change to the "Disassembly of section" message, but that is not what was failing on the bots. Original message: Add a funciton to get the segment name of a section. On MachO, sections also have segment names. When a tool looking at a .o file prints a segment name, this is what they mean. In reality, a .o has only one anonymous, segment. This patch adds a MachO only function to fetch that segment name. I named it getSectionFinalSegmentName since the main use for the name seems to be infor the linker with segment this section should go to. The patch also changes MachOObjectFile::getSectionName to return just the section name instead of computing SegmentName,SectionName. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170545 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-17Teach MachO which sections contain codeTim Northover
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170349 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13Revert "Add a funciton to get the segment name of a section."Eric Christopher
This reverts commit r170095 since it appears to be breaking the bots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170105 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13Add a funciton to get the segment name of a section.Rafael Espindola
On MachO, sections also have segment names. When a tool looking at a .o file prints a segment name, this is what they mean. In reality, a .o has only one, anonymous, segment. This patch adds a MachO only function to fetch that segment name. I named it getSectionFinalSegmentName since the main use for the name seems to be informing the linker with segment this section should go to. The patch also changes MachOObjectFile::getSectionName to return just the section name instead of computing SegmentName,SectionName. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170095 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12Remove some dead code.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169963 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Use the new script to sort the includes of every file under lib.Chandler Carruth
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. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Object: Pass the buffer name through when making a copy.Benjamin Kramer
Should bring the buildbots back to life. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168935 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Fix a memory leak in MachOObjectFile.Jim Grosbach
MachOObjectFile owns a MachOObj, but never frees it. Both MachOObjectFile and MachOObj want to own the MemoryBuffer, though, so we have to be careful and give them each one of their own. Thanks to Greg Clayton, Eric Christopher and Michael Spencer for helping figure out what's going wrong here. rdar://12561773 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168923 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14s/assert/llvm_unreachable/Matt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167936 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Fix broken asserts. Also, spell 'indices' correctly.Matt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167894 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14[Object] Fix endianess bug by refactoring Archive::Symbol::getMember.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167893 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Adding changes to support GNU style archive library readingShankar Easwaran
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167853 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29Add interface for querying object files for symbol values.Tim Northover
Currently only implemented for ELF. Patch by Amara Emerson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166918 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10Cosmetic changesAndrew Kaylor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165588 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10This patch adds new functions to the SectionRef and ObjectFile interfaces to ↵Andrew Kaylor
determine whether or not a section is meant to be read-only. These functions will be used by the MCJIT RuntimeDyld to give hints to the memory manager during the object loading process in a future patch. Patch by Ashok Thirumurthi. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165586 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-19Reverting r 160419.Galina Kistanova
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160525 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-18Fixed few warnings.Galina Kistanova
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160419 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18Added accessors for getting coff_relocation infoMarshall Clow
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158675 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Had a closing brace inside an #ifdef -- oops!Marshall Clow
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158485 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Adding acessors to COFFObjectFile so that clients can get at the ↵Marshall Clow
(non-generic) bits git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158484 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-09Convert comments to proper Doxygen comments.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158248 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-24Mark some static arrays as const.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157377 91177308-0d34-0410-b5e6-96231b3b80d8
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
2012-05-02Fix the implementation of MachOObjectFile::isSectionZeroInit so it follows ↵Eli Friedman
the MachO spec. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155976 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16Implement GDB integration for source level debugging of code JITed usingPreston Gurd
the MCJIT execution engine. The GDB JIT debugging integration support works by registering a loaded object image with a pre-defined function that GDB will monitor if GDB is attached. GDB integration support is implemented for ELF only at this time. This integration requires GDB version 7.0 or newer. Patch by Andy Kaylor! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154868 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-13Remove unused variable.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154661 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-12This patch improves the MCJIT runtime dynamic loader by adding new handlingPreston Gurd
of zero-initialized sections, virtual sections and common symbols and preventing the loading of sections which are not required for execution such as debug information. Patch by Andy Kaylor! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154610 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10Add a constructor for DataRefImpl and remove excess initialization.Danil Malyshev
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154371 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-03Object: drop bogus VMCore dependencyDylan Noblesmith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153956 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-19[Object/COFF]: Expose getSectionContents.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153051 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-19[Object/COFF]: Expose getSectionName.Michael J. Spencer
Also add some documentation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153050 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-15Fix bug found by warning.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152812 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-09[Object]David Meyer
Make Binary::TypeID more granular, to distinguish between ELF 32/64 little/big git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152435 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01[Object]David Meyer
Add ObjectFile::getLoadName() for retrieving the soname/installname of a shared object. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151845 91177308-0d34-0410-b5e6-96231b3b80d8
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