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Mark the EH symbol global or weak if the corresponding function is.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130397 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2011-04-28 12:50:37 +00:00
parent eb69732d56
commit 8bca4106df
4 changed files with 20 additions and 0 deletions
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3
include/llvm/MC/MCStreamer.h
View File

@ -184,6 +184,9 @@ namespace llvm {
/// used in an assignment.
virtual void EmitLabel(MCSymbol *Symbol);
virtual void EmitEHSymAttributes(const MCSymbol *Symbol,
MCSymbol *EHSymbol);
/// EmitAssemblerFlag - Note in the output the specified @p Flag
virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) = 0;

1
lib/MC/MCDwarf.cpp
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@ -726,6 +726,7 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCStreamer &streamer,
if (!asmInfo.isFunctionEHFrameSymbolPrivate()) {
Twine EHName = frame.Function->getName() + Twine(".eh");
MCSymbol *EHSym = context.GetOrCreateSymbol(EHName);
streamer.EmitEHSymAttributes(frame.Function, EHSym);
streamer.EmitLabel(EHSym);
}

12
lib/MC/MCMachOStreamer.cpp
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@ -44,6 +44,8 @@ public:
virtual void InitSections();
virtual void EmitLabel(MCSymbol *Symbol);
virtual void EmitEHSymAttributes(const MCSymbol *Symbol,
MCSymbol *EHSymbol);
virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
virtual void EmitThumbFunc(MCSymbol *Func);
virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
@ -101,6 +103,16 @@ void MCMachOStreamer::InitSections() {
}
void MCMachOStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
MCSymbol *EHSymbol) {
MCSymbolData &SD =
getAssembler().getOrCreateSymbolData(*Symbol);
if (SD.isExternal())
EmitSymbolAttribute(EHSymbol, MCSA_Global);
if (SD.getFlags() & SF_WeakDefinition)
EmitSymbolAttribute(EHSymbol, MCSA_WeakDefinition);
}
void MCMachOStreamer::EmitLabel(MCSymbol *Symbol) {
assert(Symbol->isUndefined() && "Cannot define a symbol twice!");

4
lib/MC/MCStreamer.cpp
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@ -154,6 +154,10 @@ void MCStreamer::EnsureValidFrame() {
report_fatal_error("No open frame");
}
void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
MCSymbol *EHSymbol) {
}
void MCStreamer::EmitLabel(MCSymbol *Symbol) {
assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
assert(getCurrentSection() && "Cannot emit before setting section!");