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path: root/lib/MC/ELFObjectWriter.cpp
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2012-12-07Make the contents of encoded sections SmallVector<char, N> instead ofEli Bendersky
SmallString. This makes it possible to use the length-erased SmallVectorImpl in the interface without imposing buffer size. Thus, the size of MCInstFragment is back down since a preallocated 8-byte contents buffer is enough. It would be generally a good idea to rid all the fragments of SmallString as contents, because a vector just makes more sense. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169644 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07Added Mapping Symbols for ARM ELFTim Northover
Before this patch, when you objdump an LLVM-compiled file, objdump tried to decode data-in-code sections as if they were code. This patch adds the missing Mapping Symbols, as defined by "ELF for the ARM Architecture" (ARM IHI 0044D). Patch based on work by Greg Fitzgerald. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169609 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
2012-10-25Initial TOC support for PowerPC64 object creationAdhemerval Zanella
This patch adds initial PPC64 TOC MC object creation using the small mcmodel (a single 64K TOC) adding the some TOC relocations (R_PPC64_TOC, R_PPC64_TOC16, and R_PPC64_TOC16DS). The addition of 'undefinedExplicitRelSym' hook on 'MCELFObjectTargetWriter' is meant to avoid the creation of an unreferenced ".TOC." symbol (used in the .odp creation) as well to set the R_PPC64_TOC relocation target as the temporary ".TOC." symbol. On PPC64 ABI, the R_PPC64_TOC relocation should not point to any symbol. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166677 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16Check .rela instead of ELF64 for the compensation vaue resettingMichael Liao
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166051 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27Fix comment.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162678 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27The ELF relocation record format is different for N64 Jack Carter
which many Mips 64 ABIs use than for O64 which many if not all other target ABIs use. Most architectures have the following 64 bit relocation record format: typedef struct { Elf64_Addr r_offset; /* Address of reference */ Elf64_Xword r_info; /* Symbol index and type of relocation */ } Elf64_Rel; typedef struct { Elf64_Addr r_offset; Elf64_Xword r_info; Elf64_Sxword r_addend; } Elf64_Rela; Whereas N64 has the following format: typedef struct { Elf64_Addr r_offset;/* Address of reference */ Elf64_Word r_sym; /* Symbol index */ Elf64_Byte r_ssym; /* Special symbol */ Elf64_Byte r_type3; /* Relocation type */ Elf64_Byte r_type2; /* Relocation type */ Elf64_Byte r_type; /* Relocation type */ } Elf64_Rel; typedef struct { Elf64_Addr r_offset;/* Address of reference */ Elf64_Word r_sym; /* Symbol index */ Elf64_Byte r_ssym; /* Special symbol */ Elf64_Byte r_type3; /* Relocation type */ Elf64_Byte r_type2; /* Relocation type */ Elf64_Byte r_type; /* Relocation type */ Elf64_Sxword r_addend; } Elf64_Rela; The structure is the same size, but the r_info data element is now 5 separate elements. Besides the content aspects, endian byte reordering will be different for the area with each element being endianized separately. I treat this as generic and continue to pass r_type as an integer masking and unmasking the byte sized N64 values for N64 mode. I've implemented this and it causes no affect on other current targets. This passes make check. Jack git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159299 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-11Tidy up. Trailing whitespace.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156602 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-26Prune some includes and forward declarations.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153429 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-23Add a hook in MCELFObjectTargetWriter to allow targets to sort relocationAkira Hatanaka
entries in the relocation table before they are written out to the file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153345 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20Remove a bunch of unused variable assignments.Benjamin Kramer
Found by the clang static analyzer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148541 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Kill the monstrosity that was ELFObjectWriter.h.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147136 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Misc cleanups.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Move the Mips only bits of the ELF writer to lib/Target/Mips.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147133 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Move the MBlaze ELF writer bits to lib/Target/MBlaze.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147129 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Move PPC bits to lib/Target/PowerPC.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Local dynamic TLS model for direct object output. Create the correct TLS MIPSAkira Hatanaka
ELF relocations. Patch by Jack Carter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147118 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Move the ARM specific parts of the ELF writer to Target/ARM.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147115 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22getEFlags is const.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147114 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-21Switch from WriteEFlags to getEFlags in preparation for moving itRafael Espindola
to Target/. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147087 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-21Move the X86 specific bits of the ELF writer to the Target/X86 directory.Rafael Espindola
Other targets will follow shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147060 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-21Reduce the exposure of Triple::OSType in the ELF object writer. This willRafael Espindola
avoid including ADT/Triple.h in many places when the target specific bits are moved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147059 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-21Small refactoring so that RelocNeedsGOT can stay in the target independentRafael Espindola
side when the target specific bits are moved to the Target directory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147053 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-13Relocation against a symbol, instead of against section. We had some extremeAkira Hatanaka
test cases where there were a lot of relocations applied relative to a large rodata section. Gas would create a symbol for each of these whereas we would be relative to the beginning of the rodata section. This change mimics what gas does. Patch by Jack Carter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146468 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Handle reloc_signed_4byte in here. Not doing so was a regression from myRafael Espindola
previous commit. It is strange that we see it in 32 bits. We already have a fixme about it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146273 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09Handle the case of the magical _GLOBAL_OFFSET_TABLE_ showing up in aRafael Espindola
symbol difference. This matches gas behavior and fixes PR11513. We still don't handle _GLOBAL_OFFSET_TABLE_ in data sections. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146238 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-07Add a few moreLocal/Global R_MIPS_GOT related fixups andBruno Cardoso Lopes
make the addend fixup code a bit more generic Patch by Jack Carter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145998 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Explicit symbols for gnu mimicing relocations. Patch by Jack CarterBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145911 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Tidy up. Hard tabs.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145878 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06Switch MCAssembler to method names starting w/ lower-case.Jim Grosbach
per http://llvm.org/docs/CodingStandards.html#ll_naming git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145873 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-23This patch addresses gp relative fixups/relocations for jump tables.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-15Tidy up. 80 columns.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144649 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-04Add mips ELF relocation types. Patch by Jack Carter!Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143738 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Also create a shndx even if there are no symbols. This lets us testNick Lewycky
.symtab_shndx reading and writing together, and finally we have a testcase for r141440. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141641 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-07Don't emit the symbol table entry for the .symtab_shndx section either.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141440 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-07Remove extraneous curlies. No functionality change.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141439 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-07Don't emit a shstrtabindex in the reserved range. Spotted by inspection andNick Lewycky
patch by Cary Coutant! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-07Clarify/fix typo. No functionality change.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141412 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-30Add definition of MipsELFObjectWriter.Akira Hatanaka
Patch by Reed Kotler at Mips Technologies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140891 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-04Introduce adjustFixupOffset that adjusts the fixup offset of a relocation.Roman Divacky
This is meant to be overriden by backends. Implement an override on PowerPC which adjusts the offset by 2 for ha16/lo16 relocation kinds. This removes a commented out hack and enables hello world to be compiled on PowerPC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136905 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-04Add an assert to check that the Addend fits the file format.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136868 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-04Fix http://llvm.org/bugs/show_bug.cgi?id=10568Jason W Kim
Move the reloc size assert into AsmBackend - where it is more apropos. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Comment out the PPC relocation offset adjustment. It must be done differently.Roman Divacky
This unbreaks some tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136692 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02Sketch out PowerPC ELF writer. This is enough to get clang -integrated-asRoman Divacky
to compile a working hello world on FreeBSD/PPC32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136689 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Rename TargetAsmBackend to MCAsmBackend; rename createAsmBackend to ↵Evan Cheng
createMCAsmBackend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136010 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Refactor X86 target to separate MC code from Target code.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135930 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where ↵Evan Cheng
they belong. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135833 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23Sink ARM mc routines into MCTargetDesc.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135825 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Remove an uneeded switch - Turns out reloc results are identical w/o the ↵Jason W Kim
switch. (face+palm) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132790 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-05Produce an undefined reference to _GLOBAL_OFFSET_TABLE_ if we have aRafael Espindola
VK_GOTOFF reloc. This matches as' behavior, but it is not clear why the linker might need this, so I added a FIXME. I could test this by duplicating test/MC/ELF/got.s, but it doesn't look worthwhile. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132655 91177308-0d34-0410-b5e6-96231b3b80d8
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