Kevin Enderby 8c9aa922a9 This adds a Darwin x86_64 relocation encoding for a subtraction expression ... where both symbols are "local", that is non-external symbols, and there is no "base" for the symbols used in the expression, that is the section has no non-temporary symbols. This case looks like this: % cat local_reloc_A-B.s .long 0 LB: .long 1 .long LA - LB - 4 .long 2 LA: .long 3 which llvm-mc will not encode without this patch, generates a "unsupported local relocations in difference" error, but the Darwin assembler will encode with relocation entries like this: % otool -rv a.out l.out a.out: Relocation information (__TEXT,__text) 2 entries address pcrel length extern type scattered symbolnum/value 00000008 False long False SUB False 1 (__TEXT,__text) 00000008 False long False UNSIGND False 1 (__TEXT,__text) which is very similar to what is encoded when the symbols don't have the leading 'L' and they are not temporary symbols. Which llvm-mc and the Darwin assembler will encoded like this: Relocation information (__TEXT,__text) 2 entries address pcrel length extern type scattered symbolnum/value 00000008 False long True SUB False B 00000008 False long True UNSIGND False A This is the missing relocation encoding needed to allow the Mach-O x86 Dwarf file and line table to be emitted. So this patch also removes the TODO from the if() statement in MCMachOStreamer::Finish() that didn't call MCDwarfFileTable::Emit() for 64-bit targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115389 91177308-0d34-0410-b5e6-96231b3b80d8		2010-10-02 00:13:41 +00:00
..
MCDisassembler	Fixed a crash in the enhanced disassembler where	2010-09-23 02:14:12 +00:00
MCParser	This is the last major patch to implement support for the .loc directive	2010-09-30 16:52:03 +00:00
CMakeLists.txt	Add ELF ObjectWriter and Streamer support.	2010-08-16 18:35:43 +00:00
ELFObjectWriter.cpp	Factor some logic into ShouldRelocOnSymbol. This simplifies the code and	2010-09-30 20:18:35 +00:00
MachObjectWriter.cpp	This adds a Darwin x86_64 relocation encoding for a subtraction expression	2010-10-02 00:13:41 +00:00
Makefile	start straightening out libedis's dependencies and make it fit	2010-07-20 18:25:19 +00:00
MCAsmInfo.cpp	allow target-specific label suffixes, patch by Yuri Gribov!	2010-09-22 22:19:53 +00:00
MCAsmInfoCOFF.cpp	Revert part of my last commit. the mingw32 build bot doesn't seem to like it.	2010-08-23 05:25:23 +00:00
MCAsmInfoDarwin.cpp	Fix .debug_range for linux. Patch by Krister Wombell.	2010-09-02 16:43:44 +00:00
MCAsmStreamer.cpp	Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile()	2010-09-30 02:45:56 +00:00
MCAssembler.cpp	This is the last major patch to implement support for the .loc directive	2010-09-30 16:52:03 +00:00
MCCodeEmitter.cpp	MCCodeEmitter: Add target independent fixup flag for is-pc-relative.	2010-03-19 10:43:23 +00:00
MCContext.cpp	Move logic of determining ELF entsize from the .s printer to initialization	2010-09-30 05:59:22 +00:00
MCDisassembler.cpp
MCDwarf.cpp	This is the last major patch to implement support for the .loc directive	2010-09-30 16:52:03 +00:00
MCELFStreamer.cpp	Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile()	2010-09-30 02:45:56 +00:00
MCExpr.cpp	Changes EvaluateAsAbsolute() to return the "current value" of the expression	2010-09-30 16:42:21 +00:00
MCInst.cpp	MC: Change MCInst::dump_pretty to not include a trailing newline.	2010-05-26 15:18:13 +00:00
MCInstPrinter.cpp	add a new MCInstPrinter::getOpcodeName interface, when it is	2010-02-11 22:39:10 +00:00
MCLabel.cpp	Added support in MC for Directional Local Labels.	2010-05-17 23:08:19 +00:00
MCLoggingStreamer.cpp	Add a InitSections method to the streamer interface.	2010-09-15 21:48:40 +00:00
MCMachOStreamer.cpp	This adds a Darwin x86_64 relocation encoding for a subtraction expression	2010-10-02 00:13:41 +00:00
MCNullStreamer.cpp	Add a InitSections method to the streamer interface.	2010-09-15 21:48:40 +00:00
MCObjectStreamer.cpp	Avoid some Mach-O specific alignment being done on ELF.	2010-09-22 22:27:05 +00:00
MCObjectWriter.cpp	This is the last major patch to implement support for the .loc directive	2010-09-30 16:52:03 +00:00
MCSection.cpp	switch MCSectionCOFF from a syntactic to semantic representation,	2010-05-07 17:17:41 +00:00
MCSectionCOFF.cpp	MC: Move COFF enumeration constants to llvm/Support/COFF.h, patch by Michael	2010-07-01 20:07:24 +00:00
MCSectionELF.cpp	Move logic of determining ELF entsize from the .s printer to initialization	2010-09-30 05:59:22 +00:00
MCSectionMachO.cpp	Fix section attribute name.	2010-05-21 21:08:52 +00:00
MCStreamer.cpp	This is the last major patch to implement support for the .loc directive	2010-09-30 16:52:03 +00:00
MCSymbol.cpp	MC/Mach-O: Mark absolute variable's appropriately, and add Mach-O support for	2010-05-05 19:01:05 +00:00
MCValue.cpp	MCValue: Change to holding MCSymbolRefExprs instead of MCSymbols, we will need this for accessing to symbol modifiers.	2010-03-18 00:59:10 +00:00
TargetAsmBackend.cpp	MC/Darwin: Add a new target hook for whether the target uses "reliable" symbol differences, basically whether the assembler should attempt to understand atoms when using scattered symbols.	2010-03-18 00:58:53 +00:00
WinCOFFObjectWriter.cpp	Correctly produce R_X86_64_32 or R_X86_64_32S.	2010-09-30 03:11:42 +00:00
WinCOFFStreamer.cpp	Avoid some Mach-O specific alignment being done on ELF.	2010-09-22 22:27:05 +00:00