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It turned out that we failed to emit proper symbol stubs on non-x86/darwin for ages (we emitted a reference to a stub, but no stub was emitted). The code inside x86-32/macho target objfile lowering should actually be the generic one - move it there.

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This (I really, really hope) should fix EH issues on ppc/darwin
and arm/darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96755 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2010-02-21 20:28:15 +00:00
parent be94ffcf12
commit 293d592bf9
5 changed files with 35 additions and 84 deletions
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30
lib/CodeGen/TargetLoweringObjectFileImpl.cpp
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@ -33,6 +33,7 @@
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
using namespace llvm;
using namespace dwarf;
//===----------------------------------------------------------------------===//
// ELF
@ -738,11 +739,23 @@ getSymbolForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
MachineModuleInfo *MMI, unsigned Encoding) const {
// The mach-o version of this method defaults to returning a stub reference.
if (Encoding & dwarf::DW_EH_PE_indirect) {
if (Encoding & DW_EH_PE_indirect) {
MachineModuleInfoMachO &MachOMMI =
MMI->getObjFileInfo<MachineModuleInfoMachO>();
SmallString<128> Name;
Mang->getNameWithPrefix(Name, GV, true);
Name += "$non_lazy_ptr";
// Add information about the stub reference to MachOMMI so that the stub
// gets emitted by the asmprinter.
MCSymbol *Sym = getContext().GetOrCreateSymbol(Name.str());
MCSymbol *&StubSym = MachOMMI.getGVStubEntry(Sym);
if (StubSym == 0) {
Name.clear();
Mang->getNameWithPrefix(Name, GV, false);
StubSym = getContext().GetOrCreateSymbol(Name.str());
}
return TargetLoweringObjectFile::
getSymbolForDwarfReference(Sym, MMI,
@ -753,6 +766,21 @@ getSymbolForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
getSymbolForDwarfGlobalReference(GV, Mang, MMI, Encoding);
}
unsigned TargetLoweringObjectFileMachO::getPersonalityEncoding() const {
return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
}
unsigned TargetLoweringObjectFileMachO::getLSDAEncoding() const {
return DW_EH_PE_pcrel;
}
unsigned TargetLoweringObjectFileMachO::getFDEEncoding() const {
return DW_EH_PE_pcrel;
}
unsigned TargetLoweringObjectFileMachO::getTTypeEncoding() const {
return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
}
//===----------------------------------------------------------------------===//
// COFF