https://bugs.llvm.org/show_bug.cgi?id=34923
Bug ID: 34923
Summary: Multiple processes can write to the same gcda files at
the same time on Windows
Product: new-bugs
Version: 5.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
flock is a no-op on Windows
(https://github.com/llvm-mirror/compiler-rt/blob/d89810afdc2862ea865f5c297ef4ea5839941d25/lib/profile/WindowsMMap.c#L122),
which means the gcda files can get corrupted if multiple processes are writing
them at the same time.
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