[libFuzzer] Don't replace custom signal handlers.
authorVitaly Buka <vitalybuka@google.com>
Thu, 25 May 2017 01:43:13 +0000 (01:43 +0000)
committerMaria Guseva <m.guseva@samsung.com>
Tue, 11 Jul 2017 02:46:03 +0000 (11:46 +0900)
commit5bedbde9cb0dfdfd9c3650fc358bc3fd07549884
treec227f12c3cf6c307fe3faa528133f6c2e1e73f14
parentd292925b86fd6dc3d919ddf414fd57476227cdab
[libFuzzer] Don't replace custom signal handlers.

Summary:
This allows to keep handlers installed by sanitizers.
In other cases third-party code can replace handlers after libFuzzer
initialization anyway.

Reviewers: kcc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D33522

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303828 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Fuzzer/FuzzerUtilPosix.cpp
lib/Fuzzer/test/fuzzer-segv.test