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Reapply my previous asmprinter changes now with more testing and two

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additional bug fixes:

1. The bug that everyone hit was a problem in the asmprinter where it
   would remove $stub but keep the L prefix on a name when emitting the
   indirect symbol.  This is easy to fix by keeping the name of the stub
   and the name of the symbol in a StringMap instead of just keeping a
   StringSet and trying to reconstruct it late.

2. There was a problem printing the personality function.  The current
   logic to print out the personality function from the DWARF information
   is a bit of a cesspool right now that duplicates a bunch of other 
   logic in the asm printer.  The short version of it is that it depends
   on emitting both the L and _ prefix for symbols (at least on darwin)
   and until I can untangle it, it is best to switch the mangler back to
   emitting both prefixes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75646 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-07-14 18:17:16 +00:00
parent 95cf30c444
commit b8158acc23
27 changed files with 174 additions and 176 deletions
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6
lib/CodeGen/MachOWriter.cpp
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@@ -221,7 +221,7 @@ void MachOWriter::AddSymbolToSection(MachOSection *Sec, GlobalVariable *GV) {
}
// Globals without external linkage apparently do not go in the symbol table.
if (!GV->hasLocalLinkage()) {
MachOSym Sym(GV, Mang->getValueName(GV), Sec->Index, TAI);
MachOSym Sym(GV, Mang->getMangledName(GV), Sec->Index, TAI);
Sym.n_value = Sec->size();
SymbolTable.push_back(Sym);
}
@@ -255,7 +255,7 @@ void MachOWriter::EmitGlobal(GlobalVariable *GV) {
// merged with other symbols.
if (NoInit || GV->hasLinkOnceLinkage() || GV->hasWeakLinkage() ||
GV->hasCommonLinkage()) {
MachOSym ExtOrCommonSym(GV, Mang->getValueName(GV),
MachOSym ExtOrCommonSym(GV, Mang->getMangledName(GV),
MachOSym::NO_SECT, TAI);
// For undefined (N_UNDF) external (N_EXT) types, n_value is the size in
// bytes of the symbol.
@@ -454,7 +454,7 @@ void MachOWriter::BufferSymbolAndStringTable() {
for (std::vector<GlobalValue*>::iterator I = PendingGlobals.begin(),
E = PendingGlobals.end(); I != E; ++I) {
if (GVOffset[*I] == 0 && GVSection[*I] == 0) {
MachOSym UndfSym(*I, Mang->getValueName(*I), MachOSym::NO_SECT, TAI);
MachOSym UndfSym(*I, Mang->getMangledName(*I), MachOSym::NO_SECT, TAI);
SymbolTable.push_back(UndfSym);
GVOffset[*I] = -1;
}