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2011-02-23Omit private_extern declarations of extern symbols; followup toStuart Hastings
r124468. Patch by Rafael Avila de Espindola! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126297 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21Use a vector of pairs to implement the section stack, not twoJoerg Sonnenberger
independent vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Gas is very inconsistent about when a relaxation/relocation is needed. DoRafael Espindola
the right thing and stop trying to copy it. Fixes PR8944. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125648 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Add support for pushsection and popsection. Patch by Joerg Sonnenberger.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125629 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14Move broken HasCommonSymbols to ELFWriter.cpp.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125490 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Remove trailing whitespace.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125385 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11Remove trailing whitespace.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125327 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03Remove trailing whitespaceBob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23Add support for the --noexecstack option.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124077 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23Remove more duplicated code.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124056 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23Remove duplicated code.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-14Add a possibility to switch between CFI directives- and table-based frame ↵Anton Korobeynikov
description emission. Currently all the backends use table-based stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123476 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-13Model :upper16: and :lower16: as ARM specific MCTargetExpr. This is a stepEvan Cheng
in the right direction. It eliminated some hacks and will unblock codegen work. But it's far from being done. It doesn't reject illegal expressions, e.g. (FOO - :lower16:BAR). It also doesn't work in Thumb2 mode at all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123369 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-29MC/Mach-O/Thumb: Set the thumb bit in the symbol table.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122630 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
2010-12-28Implement .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
2010-12-28Relax 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
2010-12-26Add basic support for .cfi_personality.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122566 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-24Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We nowRafael Espindola
have a single point where targets test if a relocation is needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122549 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a muchRafael Espindola
better name and matches what is used in the MachO writer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122443 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22Use references and simplify.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122405 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21Don't relax org or align. They change size as the relaxation happens, but theyRafael Espindola
are not actually relaxed. For example, a section with only alignments will never needs relaxation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122356 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrongDaniel Dunbar
type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21Layout one section until no relaxations are done and then move to the nextRafael Espindola
section. This helps because in practice sections form a dag with debug sections pointing to text sections. Finishing up the text sections first makes the debug section relaxation trivial. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122314 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18Add support for lexing single quotes like 'c'.Roman Divacky
This fixed 8615. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122150 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18Merge isAbsolute into IsSymbolRefDifferenceFullyResolved.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122148 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18Remove the MCObjectFormat class.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18Revert 122011, 122012, 122013, 122023 adding back an important optimization.Rafael Espindola
I added a note, but suggestions on how to add a test are really welcome. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122138 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-18Move some data to the TargetWriter.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122134 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17Stub out explicit MCELFObjectTargetWriter interface.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122067 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17Move createELFObjectWriter to its own header.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122064 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17MC/Mach-O: On second thought, use a custom hook for enabling aggressiveDaniel Dunbar
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on enough cases for x86-32 that I would rather wait a bit on it. - In practice, we will want to change this eventually because it only means we generate less relocations (it also eliminates the need for the horrible '.set' hack that Darwin requires in some places). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122042 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format ↵Daniel Dunbar
specific hook. - Currently just has stub implementations for Mach-O, ELF, and COFF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122037 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17MC/Assembler: Strip out object writer arguments, now that it is always availableDaniel Dunbar
-- and remove FIXME asking for the same! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122032 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17MC/Assembler: Make the MCObjectWriter available through the lifetime of theDaniel Dunbar
assembler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122031 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17MC/Expr: Simplify.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122023 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17MC: Remove another dead MCAssembler argument, and update clients.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122013 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17MC: Remove dead MCAssembler argument -- Rafael, can you check the FIXME I addedDaniel Dunbar
here? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122012 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17Fix 80-col viola.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122010 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16MC/Mach-O: Lift some MachObjectWriter arguments into the target specificDaniel Dunbar
interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121981 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121973 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121971 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16MC: Move target specific fixup info descriptors to TargetAsmBackend instead ofDaniel Dunbar
the MCCodeEmitter, which seems like a better organization. - Also, cleaned up some magic constants while in the area. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121953 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16MC: Make TargetAsmBackend available to the AsmStreamer.Daniel Dunbar
- Treaty talks on the non-proliferation of MC objects broke down. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121949 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16MC: Split MCFixupKindInfo out into its own header.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121948 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16MC: Remove a FIXME I no longer agree with.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121947 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15Implement cleanups suggested by Daniel.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121875 91177308-0d34-0410-b5e6-96231b3b80d8
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