http://llvm.org/bugs/show_bug.cgi?id=16888
Bug ID: 16888
Summary: [-cxx-abi microsoft] static local initialization
requires a guard variable
Product: clang
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Blocks: 12477
Classification: Unclassified
Basically, MicrosoftCXXABI::EmitGuardedInit() needs work. It has this comment:
// FIXME: this code was only tested for global initialization.
// Not sure whether we want thread-safe static local variables as VS
// doesn't make them thread-safe.
Given that we can have inline functions with static locals, I believe we
actually need to match MSVC's behavior exactly down to the mangling of the
guard variable in order to be compatible.
I discovered this because LLVM's outs() has a static raw_fd_ostream for
STDOUT_FILENO, and currently we register its destructor once per call to
outs(), leading to assertions in the CRT on double-close.
--
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
