http://llvm.org/bugs/show_bug.cgi?id=3965
Summary: SIGINT handler not restored after calling ParseAST()
Product: clang
Version: unspecified
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: parser
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Created an attachment (id=2812)
--> (http://llvm.org/bugs/attachment.cgi?id=2812)
exit(1); -> raise(Sig); patch
This is similar to http://llvm.org/bugs/show_bug.cgi?id=3848
However, the problem is that even when there is no custom interrupt function
set, the signal handler does an exit(1); when receiving a SIGINT, rather than
calling the default handler.
It seems the custom signal handler persists even after clang returns from
ParseAST().
The attached patch changes the behaviour of receiving a SIGINT to run the
previous handler rather than calling exit(1).
A better solution may be to actually unregister the damn handler before clang
exits from ParseAST() - but I'm not sure where this code would have to go.
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