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path: root/lib/MC/MCDwarf.cpp
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2011-04-28Mark the EH symbol global or weak if the corresponding function is.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130397 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28Add a small temporary hack for producing identical eh_frame sections on OS X.Rafael Espindola
This removes one of the main advantages of moving eh_frame to MC, but makes the transition a lot easier to debug (run md5). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130379 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28Produce the EH_frame# symbols if needed.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130378 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28Forward isFunctionEHFrameSymbolPrivate. If it is false, produce the foo.ehRafael Espindola
symbols. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130375 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-27Force some values to be absolute and align based on the FDE pointers size. A ↵Rafael Espindola
small step towards using .cfi_* on OS X. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130273 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22Delete the other unused variable in this function. Sorry I missed thisChandler Carruth
the first time through. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129969 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22Remove an unused variable from a function. This is a likely cut-paste-o.Chandler Carruth
Silences GCC warning. I wonder why Clang doesn't warn on this... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129968 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-22Compute the size of the FDE encoding instead of hard coding it. UpdateRafael Espindola
X8664_ELFTargetObjectFile::getFDEEncoding to match reality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21Remove unused argument.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129955 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21Don't pass address spaces to EmitULEB128IntValue.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12Remove LastOffset from the asm parser.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129378 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129362 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12Implement .cfi_same_value.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129361 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs ↵Anton Korobeynikov
and fixes here and there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-30Make a bunch of symbols internal.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122642 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-29Correctly encode pcrel|indirect.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122624 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-29Fix bug when trying to output uint16_t or uint32_t.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122615 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-29Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. LooksRafael Espindola
like 6 is a fixed point of that and so the previous tests were OK :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122614 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-28Don't produce a "DW_CFA_advance_loc 0".Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122609 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-28Implement .cfi_remember_state and .cfi_restore_state.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122602 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-28Fix warning about size potentially being used uninitializedDuncan Sands
when doing a release build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122594 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-28Relax address updates in the eh_frame section.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122591 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-28Start adding basic support for emitting the call frame instructions.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122590 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-27Add support for .cfi_lsda.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122584 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-27Add support for the same encodings of the personality function that gnu asRafael Espindola
supports. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122577 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-26Fix .cfi_personality on 32 bit systems.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122570 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-26Add basic support for .cfi_personality.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122566 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17"Fix" FDE alignment to match what gas does.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122006 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10Fixed version of 121434 with no new memory leaks.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121471 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10Revert my previous patch to make the valgrind bots happy.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09Initial support for the cfi directives. This is just enough to getRafael Espindola
f: .cfi_startproc nop .cfi_endproc assembled (on ELF). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121434 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09Use const references.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121426 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Second try at making direct object emission produce the same resultsRafael Espindola
as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc bootstrap on darwin10 using darwin9's assembler and linker. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121006 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Revert previous two patches while I try to find out how to make bothRafael Espindola
linux and darwin assemblers happy :-( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121004 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Add an EmitAbsValue helper method and use it in cases where we want to be sureRafael Espindola
that no relocations are used (on MochO). Fixes llc producing different output from llc + llvm-mc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121000 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Remember the contents of leb and dwarfline fragments when relaxing. This avoidsRafael Espindola
having to evaluate the expression again when writing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120920 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04There are two reasons why we might want to useRafael Espindola
foo = a - b .long foo instead of just .long a - b First, on darwin9 64 bits the assembler produces the wrong result. Second, if "a" is the end of the section all darwin assemblers (9, 10 and mc) will not consider a - b to be a constant but will if the dummy foo is created. Split how we handle these cases. The first one is something MC should take care of. The second one has to be handled by the caller. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120889 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoidRafael Espindola
doing that if the target is darwin10 or newer. This fixes *) Direct object emission was producing objects without the workaround on darwin9. *) Assembly printing was producing objects with the workaround on linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03First step in fixing MC. Make it clear that we are avoiding a bug in theRafael Espindola
darwin9 linker, what is needed to avoid it and where to get more information. Also make the workaround simpler. Just the regular end_sequence we normally create is more than 4 bytes. Tested by building cctools and ld64 from darwin9 on a darwin10 system and using those. I checked that I was able to reproduce the bootstrap failure when the the workaround was disabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03Try to resolve symbol differences early, and if successful create a plainRafael Espindola
data fragment. This reduces the time to assemble the test in 8711 from 60s to 54s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120767 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03It may not be an option to skip .debug_line if there are file reference in ↵Devang Patel
already emitted debug info. So, for now, emit dummy line table entry to make older linker and assemblers happy. This is not a new behavior, original AsmPrinter emitted similar line table entries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120760 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02Use set directive for StartMinusEndExpr.Devang Patel
This is a fix for llvm-gcc-i386-darwin9 buildbot failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120742 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-22Remove some #includes.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119967 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-19Add a MCLineSectionOrder vector so that we produce the line tables in aRafael Espindola
deterministic order. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119795 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-19Change some methods in MCDwarf.cpp to be able to handle an arbitraryRafael Espindola
MCStreamer instead of just MCObjectStreamer. Address changes cannot be as efficient as we have to use DW_LNE_set_addres, but at least most of the logic is shared. This will be used so that, with CodeGen still using EmitDwarfLocDirective, llvm-gcc is able to produce debug_line sections without needing an assembler that supports .loc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119777 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-13Fix the encoding of negative line deltas.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-12Remove what looks like dead code in the production of debug lines.Rafael Espindola
We only produce debug line information if we have seen a line directive, so this code is dead. Also, if we want to be bug by bug compatible with gas and sometimes produce "empty" .debug_line sections, this will match the content produced by gas. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118914 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-02Add support for expressions in .sleb/.uleb directives.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118023 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-04Incorporate suggestions by Daniel Dunbar after his review. Thanks Daniel!Kevin Enderby
1) Changed ValidateDwarfFileNumber() to isValidDwarfFileNumber() to be better named. Since it is just a predicate and isn't actually changing any state. 2) Added a missing return in the comments for setCurrentDwarfLoc() in include/llvm/MC/MCContext.h for fix formatting. 3) Changed clearDwarfLocSeen() to ClearDwarfLocSeen() since it does change state. 4) Simplified the last test in isValidDwarfFileNumber() to just a one line boolean test of MCDwarfFiles[FileNumber] != 0 for the final return statement. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115551 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-30This is the last major patch to implement support for the .loc directiveKevin Enderby
and output the dwarf line number tables. This contains the code to emit and encode the dwarf line tables from the previously gathered information in the MCLineSection objects. This contains all the details to encode the line and address deltas into the dwarf line table. To do this an MCDwarfLineAddrFragment has been added. Also this moves the interface code out of Mach-O streamer into MCDwarf so it should be useable by other object file formats. There is now one call to be made from an MCObjectStreamer EmitInstruction() method: MCLineEntry::Make(this, getCurrentSection()); to create a line entry after each instruction is assembled. And one call call to be made from an MCObjectStreamer Finish() method: MCDwarfFileTable::Emit(this, DwarfLineSection); when getContext().hasDwarfFiles() is true and is passed a object file specific MCSection where to emit the dwarf file and the line tables. This appears to now be correct for 32-bit targets, at least x86. But the relocation entries for 64-bit Darwin needs some further work which is next up to work on. So for now the 64-bit Mach-O target does not output the dwarf file and line tables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115157 91177308-0d34-0410-b5e6-96231b3b80d8
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