Sean Callanan afc70ab3e2 [TypeSystem] Guard the global ASTSourceMap with a mutex ...

s_source_map in ClangExternalASTSourceCommon.cpp is unguarded 
and therefore can break in multithreaded conditions. This can 
cause crashes in particular if multiple targets are being set
up at once.

This patch wraps s_source_map in a function that ensures 
exclusivity, and makes every user of it use that function
instead.

<rdar://problem/33429774> lldb crashes after "resume_off"

Differential Revision: https://reviews.llvm.org/D35083

llvm-svn: 308993

2017-07-25 17:33:37 +00:00

2.8 KiB

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