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Add a FIXME.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99228 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2010-03-22 23:16:43 +00:00
parent ea16ea5901
commit 35b0657dea
1 changed files with 14 additions and 0 deletions
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14
lib/MC/MachObjectWriter.cpp
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@ -437,6 +437,20 @@ public:
Write32(Address);
}
// FIXME: We really need to improve the relocation validation. Basically, we
// want to implement a separate computation which evaluates the relocation
// entry as the linker would, and verifies that the resultant fixup value is
// exactly what the encoder wanted. This will catch several classes of
// problems:
//
// - Relocation entry bugs, the two algorithms are unlikely to have the same
// exact bug.
//
// - Relaxation issues, where we forget to relax something.
//
// - Input errors, where something cannot be correctly encoded. 'as' allows
// these through in many cases.
void RecordX86_64Relocation(const MCAssembler &Asm,
const MCFragment *Fragment,
const MCAsmFixup &Fixup, MCValue Target,