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For PC relative relocations where symbols are defined in the same section they

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are referenced, ignore the relocation entry and patch the relocatable field with
the computed symbol offset directly


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76414 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes
2009-07-20 08:52:02 +00:00
parent 1488670076
commit 0a38dc5fda
5 changed files with 114 additions and 43 deletions
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13
lib/Target/X86/X86ELFWriterInfo.h
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@@ -59,16 +59,25 @@ namespace llvm {
/// for a jump table index.
virtual unsigned getJumpTableIndexRelTy() const { return R_X86_64_32S; }
/// getAddendForRelTy - Gets the addend value for an ELF relocation entry
/// based on the target relocation type
/// getDefaultAddendForRelTy - Gets the default addend value for a
/// relocation entry based on the target ELF relocation type.
virtual long int getDefaultAddendForRelTy(unsigned RelTy) const;
/// getRelTySize - Returns the size of relocatable field in bits
virtual unsigned getRelocationTySize(unsigned RelTy) const;
/// isPCRelativeRel - True if the relocation type is pc relative
virtual bool isPCRelativeRel(unsigned RelTy) const;
/// getJumpTableRelocationTy - Returns the machine relocation type used
/// to reference a jumptable.
virtual unsigned getAbsoluteLabelMachineRelTy() const;
/// computeRelocation - Some relocatable fields could be relocated
/// directly, avoiding the relocation symbol emission, compute the
/// final relocation value for this symbol.
virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
unsigned RelTy) const;
};
} // end llvm namespace