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7486d92a6c
llvm-6502/lib/MC
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Rafael Espindola 7486d92a6c Change how we iterate over relocations on ELF. 
For COFF and MachO, sections semantically have relocations that apply to them.
That is not the case on ELF.

In relocatable objects (.o), a section with relocations in ELF has offsets to
another section where the relocations should be applied.

In dynamic objects and executables, relocations don't have an offset, they have
a virtual address. The section sh_info may or may not point to another section,
but that is not actually used for resolving the relocations.

This patch exposes that in the ObjectFile API. It has the following advantages:

* Most (all?) clients can handle this more efficiently. They will normally walk
all relocations, so doing an effort to iterate in a particular order doesn't
save time.

* llvm-readobj now prints relocations in the same way the native readelf does.

* probably most important, relocations that don't point to any section are now
visible. This is the case of relocations in the rela.dyn section. See the
updated relocation-executable.test for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182908 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-30 03:05:14 +00:00
..
MCDisassembler Follow up of the introduction of MCSymbolizer. 2013-05-24 22:51:52 +00:00
MCParser Fix two typo 2013-05-14 23:36:24 +00:00
CMakeLists.txt MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
ELFObjectWriter.cpp Remove MCELFObjectTargetWriter::adjustFixupOffset hack 2013-05-15 15:07:42 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
MachObjectWriter.cpp [MC/Mach-O] Load commands are supposed to 8-byte aligned on 64-bit. 2013-01-22 03:42:49 +00:00
Makefile
MCAsmBackend.cpp MachO: direct-to-object attribute for data-in-code markers. 2012-10-01 22:20:54 +00:00
MCAsmInfo.cpp Remove unused DwarfSectionOffsetDirective string 2013-04-22 22:49:11 +00:00
MCAsmInfoCOFF.cpp Remove unused DwarfSectionOffsetDirective string 2013-04-22 22:49:11 +00:00
MCAsmInfoDarwin.cpp Fix alignment of .comm and .lcomm on mingw32. 2012-09-07 21:08:01 +00:00
MCAsmStreamer.cpp Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCAssembler.cpp Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCAtom.cpp MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
MCCodeEmitter.cpp MC: Move target specific fixup info descriptors to TargetAsmBackend instead of 2010-12-16 03:20:06 +00:00
MCCodeGenInfo.cpp Sink codegen optimization level into MCCodeGenInfo along side relocation model 2011-11-16 08:38:26 +00:00
MCContext.cpp Debug Info: use SmallVector instead of std::vector in MCDwarfDirsCUMap and MCDwarfFilesCUMap 2013-03-12 20:17:00 +00:00
MCDisassembler.cpp Follow up of the introduction of MCSymbolizer. 2013-05-24 22:51:52 +00:00
MCDwarf.cpp Remove the MachineMove class. 2013-05-13 01:16:13 +00:00
MCELF.cpp ELF symbol table field st_other support, 2013-02-19 21:57:35 +00:00
MCELFObjectTargetWriter.cpp Cleanup relocation sorting for ELF. 2013-05-15 18:22:01 +00:00
MCELFStreamer.cpp Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCExpr.cpp [PowerPC] Clean up generation of ha16() / lo16() markers 2013-05-23 22:26:41 +00:00
MCExternalSymbolizer.cpp Follow up of the introduction of MCSymbolizer. 2013-05-24 22:51:52 +00:00
MCFunction.cpp MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
MCInst.cpp Release build: guard dump functions with 2012-09-12 05:06:18 +00:00
MCInstPrinter.cpp Try to unbreak the build on hosts that don't transitively pull in a definition for int64_t. 2012-12-05 18:31:11 +00:00
MCInstrAnalysis.cpp MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
MCLabel.cpp Release build: guard dump functions with 2012-09-12 05:06:18 +00:00
MCMachObjectTargetWriter.cpp MC/Mach-O: On second thought, use a custom hook for enabling aggressive 2010-12-17 05:50:29 +00:00
MCMachOStreamer.cpp Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCModule.cpp Fix unused warning in opt builds. 2013-05-24 06:26:18 +00:00
MCNullStreamer.cpp Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCObjectDisassembler.cpp MC: Disassembled CFG reconstruction. 2013-05-24 01:07:04 +00:00
MCObjectFileInfo.cpp [SystemZ] Update non-pic DWARF encodings 2013-05-06 17:28:30 +00:00
MCObjectStreamer.cpp Add support for DWARF line number table entries for values in the instruction 2013-05-25 21:56:53 +00:00
MCObjectSymbolizer.cpp Change how we iterate over relocations on ELF. 2013-05-30 03:05:14 +00:00
MCObjectWriter.cpp Move [SU]LEB128 encoding to a utility header. 2012-08-08 23:56:06 +00:00
MCPureStreamer.cpp Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCRegisterInfo.cpp Add MCRI::getNumSubRegIndices() and start checking SubRegIndex ranges. 2012-09-11 16:34:02 +00:00
MCRelocationInfo.cpp Follow up of the introduction of MCSymbolizer. 2013-05-24 22:51:52 +00:00
MCSection.cpp Use the new script to sort the includes of every file under lib. 2012-12-03 16:50:05 +00:00
MCSectionCOFF.cpp Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCSectionELF.cpp Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCSectionMachO.cpp Add support for subsections to the ELF assembler. Fixes PR8717. 2013-04-17 21:18:16 +00:00
MCStreamer.cpp MCStreamer: Also clear vector of W64UnwindInfos on reset(). 2013-05-07 21:14:15 +00:00
MCSubtargetInfo.cpp Use the new script to sort the includes of every file under lib. 2012-12-03 16:50:05 +00:00
MCSymbol.cpp Fix Doxygen issues: 2012-09-14 14:57:36 +00:00
MCSymbolizer.cpp Add MCSymbolizer for symbolic/annotated disassembly. 2013-05-24 00:39:57 +00:00
MCValue.cpp Release build: guard dump functions with 2012-09-12 05:06:18 +00:00
MCWin64EH.cpp Use the new script to sort the includes of every file under lib. 2012-12-03 16:50:05 +00:00
SubtargetFeature.cpp Symbol hygiene: Make sure declarations and definitions match, make helper functions static. 2012-10-20 12:53:26 +00:00
WinCOFFObjectWriter.cpp COFF: Fix weak external aliases. 2013-04-22 18:48:56 +00:00
WinCOFFStreamer.cpp Give the MCStreamer class hierarchy LLVM RTTI facilities for use with 2013-01-31 23:29:57 +00:00