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make sure to unlock keymgr if the JIT is created and destroyed, all 

locks must be matched with unlocks.  Also, use calloc to allocate the
block so that it is properly zero'd.  Thanks to Nick Kledzik for
tracking this down.

llvm-svn: 69314
This commit is contained in:
Chris Lattner 2009-04-16 21:47:59 +00:00
parent de578e8cc6
commit 11ceb38df0
1 changed files with 3 additions and 5 deletions
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8
llvm/lib/ExecutionEngine/JIT/JIT.cpp
View File

@ -237,11 +237,9 @@ JIT::JIT(ModuleProvider *MP, TargetMachine &tm, TargetJITInfo &tji,
// The key is created on demand, and libgcc creates it the first time an
// exception occurs. Since we need the key to register frames, we create
// it now.
if (!LOI) {
LOI = (LibgccObjectInfo*)malloc(sizeof(struct LibgccObjectInfo));
_keymgr_set_and_unlock_processwide_ptr(KEYMGR_GCC3_DW2_OBJ_LIST,
LOI);
}
if (!LOI)
LOI = (LibgccObjectInfo*)calloc(sizeof(struct LibgccObjectInfo), 1);
_keymgr_set_and_unlock_processwide_ptr(KEYMGR_GCC3_DW2_OBJ_LIST, LOI);
InstallExceptionTableRegister(DarwinRegisterFrame);
#else
InstallExceptionTableRegister(__register_frame);