tag 2b7085e5d54caf9f3305a765f425b51a38864728
tagger Swift Automation <swift_jenkins@apple.com> Thu Jul 06 12:43:31 2017 -0500
object 49e177fa21764ee7a7073a483023e1f402f472dd

Tag build swift-4.0-DEVELOPMENT-SNAPSHOT-2017-07-05-a

commit 49e177fa21764ee7a7073a483023e1f402f472dd
author Kuba Mracek <mracek@apple.com> Wed Jul 05 22:17:44 2017 +0000
committer Kuba Mracek <mracek@apple.com> Wed Jul 05 17:32:38 2017 -0700
tree 15c47847fdb0bca2923a9f5498fa9b306e915a66
parent c01ad61b157e3894ca5adbca6de1a6b54b967bbc

[tsan] Use pthread_sigmask instead of sigprocmask to block signals in a thread on Darwin

On Darwin, sigprocmask changes the signal mask for the entire process. This has some unwanted consequences, because e.g. internal_start_thread wants to disable signals only in the current thread (to make the new thread inherit the signal mask), which is currently broken on Darwin. This patch switches to pthread_sigmask.

Differential Revision: https://reviews.llvm.org/D35016



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@307212 91177308-0d34-0410-b5e6-96231b3b80d8