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Better comments. 

llvm-svn: 30017
This commit is contained in:
Evan Cheng 2006-09-01 07:09:56 +00:00
parent c5fddc566c
commit 4b8b6ae924
1 changed files with 4 additions and 1 deletions
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5
llvm/lib/ExecutionEngine/JIT/JIT.cpp
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@ -312,7 +312,10 @@ void *JIT::getOrEmitGlobalVariable(const GlobalVariable *GV) {
#ifdef __APPLE__
#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_4 && \
__APPLE_CC__ >= 5330
// __dso_handle is resolved by the Mac OS X dynamic linker.
// Apple gcc defaults to -fuse-cxa-atexit (i.e. calls __cxa_atexit instead
// of atexit). It passes the address of linker generated symbol __dso_handle
// to the function.
// This configuration change happened at version 5330.
if (GV->getName() == "__dso_handle")
return (void*)&__dso_handle;
#endif