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Commit b46aab03 authored by Hansong Zhang's avatar Hansong Zhang
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Facade_main: Don't invoke old_act.sa_handler if it's not a function 

old_act.sa_handler can be a function pointer, OR SIG_DFL/SIG_IGN.  In
that case, if we invoke the function, we get SIGSEGV.

Test: cert/run
Bug: 199439539
Tag: #stability
Change-Id: I34fc00230a34cc0992753cc62205a6704255f34d
parent a4d78a56
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