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

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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 76f07543d9
commit 1f5c81d50f
1 changed files with 3 additions and 5 deletions
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8
lib/ExecutionEngine/JIT/JIT.cpp
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@ -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);