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Fix absolute recording of differences of symbols in two sections. Reduced from ctor_dtor_count-2.cpp.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121152 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2010-12-07 17:12:32 +00:00
parent 5029159fbe
commit 545b77ef50
2 changed files with 75 additions and 0 deletions
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11
lib/MC/MachObjectWriter.cpp
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@ -884,6 +884,17 @@ public:
// FIXME: Currently, these are never generated (see code below). I cannot
// find a case where they are actually emitted.
Type = macho::RIT_Vanilla;
} else if (SD->getSymbol().isVariable()) {
const MCExpr *Value = SD->getSymbol().getVariableValue();
int64_t Res;
bool isAbs = Value->EvaluateAsAbsolute(Res, Layout, SectionAddress);
if (isAbs) {
FixedValue = Res;
return;
} else {
report_fatal_error("unsupported relocation of variable '" +
SD->getSymbol().getName() + "'");
}
} else {
// Check whether we need an external or internal relocation.
if (doesSymbolRequireExternRelocation(SD)) {