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Fix PR18381 - print a minimal diagnostic rather than assert on unresolved .secidx target

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200490 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Timur Iskhodzhanov
2014-01-30 21:13:05 +00:00
parent 6420c11093
commit 4e54e6fe75
3 changed files with 17 additions and 0 deletions
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4
include/llvm/MC/MCAssembler.h
View File

@ -1153,6 +1153,10 @@ public:
return *Entry; return *Entry;
} }
bool hasSymbolData(const MCSymbol &Symbol) const {
return SymbolMap.lookup(&Symbol) != 0;
}
MCSymbolData &getSymbolData(const MCSymbol &Symbol) const { MCSymbolData &getSymbolData(const MCSymbol &Symbol) const {
MCSymbolData *Entry = SymbolMap.lookup(&Symbol); MCSymbolData *Entry = SymbolMap.lookup(&Symbol);
assert(Entry && "Missing symbol data!"); assert(Entry && "Missing symbol data!");

5
lib/MC/WinCOFFObjectWriter.cpp
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@ -636,6 +636,11 @@ void WinCOFFObjectWriter::RecordRelocation(const MCAssembler &Asm,
const MCSymbol &Symbol = Target.getSymA()->getSymbol(); const MCSymbol &Symbol = Target.getSymA()->getSymbol();
const MCSymbol &A = Symbol.AliasedSymbol(); const MCSymbol &A = Symbol.AliasedSymbol();
if (!Asm.hasSymbolData(A))
Asm.getContext().FatalError(
Fixup.getLoc(),
Twine("symbol '") + A.getName() + "' can not be undefined");
MCSymbolData &A_SD = Asm.getSymbolData(A); MCSymbolData &A_SD = Asm.getSymbolData(A);
MCSectionData const *SectionData = Fragment->getParent(); MCSectionData const *SectionData = Fragment->getParent();

8
test/MC/COFF/secidx-diagnostic.s Normal file
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@ -0,0 +1,8 @@
// RUN: not llvm-mc -filetype=obj -triple i686-pc-win32 %s 2>%t
// RUN: FileCheck %s < %t
// CHECK: symbol 'bar' can not be undefined
.data
foo:
.secidx bar