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Revert 92020 until I figure out a more portable fix

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92021 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Douglas Gregor
2009-12-23 19:04:10 +00:00
parent 0f706ab789
commit 0b64472737
2 changed files with 28 additions and 47 deletions
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34
lib/System/DynamicLibrary.cpp
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@@ -69,10 +69,6 @@ bool DynamicLibrary::LoadLibraryPermanently(const char *Filename,
return false;
}
#define EXPLICIT_SYMBOL(SYM) \
extern "C" void *SYM;
#include "DynamicLibrarySymbolDefs.def"
void* DynamicLibrary::SearchForAddressOfSymbol(const char* symbolName) {
// First check symbols added via AddSymbol().
if (ExplicitSymbols) {
@@ -97,15 +93,41 @@ void* DynamicLibrary::SearchForAddressOfSymbol(const char* symbolName) {
}
#define EXPLICIT_SYMBOL(SYM) \
if (!strcmp(symbolName, #SYM)) return &SYM;
extern void *SYM; if (!strcmp(symbolName, #SYM)) return &SYM
// If this is darwin, it has some funky issues, try to solve them here. Some
// important symbols are marked 'private external' which doesn't allow
// SearchForAddressOfSymbol to find them. As such, we special case them here,
// there is only a small handful of them.
#ifdef __APPLE__
{
#include "DynamicLibrarySymbolDefs.def"
EXPLICIT_SYMBOL(__ashldi3);
EXPLICIT_SYMBOL(__ashrdi3);
EXPLICIT_SYMBOL(__cmpdi2);
EXPLICIT_SYMBOL(__divdi3);
EXPLICIT_SYMBOL(__eprintf);
EXPLICIT_SYMBOL(__fixdfdi);
EXPLICIT_SYMBOL(__fixsfdi);
EXPLICIT_SYMBOL(__fixunsdfdi);
EXPLICIT_SYMBOL(__fixunssfdi);
EXPLICIT_SYMBOL(__floatdidf);
EXPLICIT_SYMBOL(__floatdisf);
EXPLICIT_SYMBOL(__lshrdi3);
EXPLICIT_SYMBOL(__moddi3);
EXPLICIT_SYMBOL(__udivdi3);
EXPLICIT_SYMBOL(__umoddi3);
}
#endif
#ifdef __CYGWIN__
{
EXPLICIT_SYMBOL(_alloca);
EXPLICIT_SYMBOL(__main);
}
#endif
#undef EXPLICIT_SYMBOL
// This macro returns the address of a well-known, explicit symbol
#define EXPLICIT_SYMBOL(SYM) \