http://llvm.org/bugs/show_bug.cgi?id=15750
Bug ID: 15750
Summary: GDBJITRegistrar not thread-safe (makes MCJIT not
thread-safe)
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Generic Execution Engine Support
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
GDBJITRegistrar::(de)registerObject() accesses a member variable
ObjectBufferMap without any synchronization. The class is used as a singleton
and so multiple instances of MCJIT try to modify that map simultaneously.
The code is written to be thread-safe with its access to gdb variables but not
with its own state, which is strange given its singleton nature.
Also, JITRegistrar::getGDBRegistrar should use ManagedStatic. The
initialization pattern it uses is not guaranteed thread-safe.
--
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
