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| author | Kevin Enderby <enderby@apple.com> | 2012-01-31 23:02:57 +0000 |
|---|---|---|
| committer | Kevin Enderby <enderby@apple.com> | 2012-01-31 23:02:57 +0000 |
| commit | e1a12cf3eeb1b87b01f6e9873f53cd008c7b50b0 (patch) | |
| tree | f4ec0b1cda63eb6017ec821c28c4d0d8627a4e85 /llvm/lib/MC | |
| parent | 9ccdb1d01bf98b47205f51a024a9ea4d5dd135d0 (diff) | |
| download | bcm5719-llvm-e1a12cf3eeb1b87b01f6e9873f53cd008c7b50b0.tar.gz bcm5719-llvm-e1a12cf3eeb1b87b01f6e9873f53cd008c7b50b0.zip | |
Fixed a crash in llvm-mc for Mach-O when a symbol difference expression uses a
symbol from an assignment. In this case the symbol did not have a fragment so
MCObjectWriter::IsSymbolRefDifferenceFullyResolved() should not have been
calling IsSymbolRefDifferenceFullyResolvedImpl() with a NULL fragment and should
just have returned false in that case.
llvm-svn: 149442
Diffstat (limited to 'llvm/lib/MC')
| -rw-r--r-- | llvm/lib/MC/MCObjectWriter.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/MC/MCObjectWriter.cpp b/llvm/lib/MC/MCObjectWriter.cpp index 18887397ab6..030f24793c5 100644 --- a/llvm/lib/MC/MCObjectWriter.cpp +++ b/llvm/lib/MC/MCObjectWriter.cpp @@ -68,6 +68,8 @@ MCObjectWriter::IsSymbolRefDifferenceFullyResolved(const MCAssembler &Asm, const MCSymbolData &DataA = Asm.getSymbolData(SA); const MCSymbolData &DataB = Asm.getSymbolData(SB); + if(!DataA.getFragment() || !DataB.getFragment()) + return false; return IsSymbolRefDifferenceFullyResolvedImpl(Asm, DataA, *DataB.getFragment(), |
