tree 1ba99e0cd45e45914aaaaa0ac15507195ccf51f9
parent 88cdc6927e157ea872b4f8bbc9cb990824e1a559
author Vedant Kumar <vsk@apple.com> 1571432730 +0000
committer Vedant Kumar <vsk@apple.com> 1571432730 +0000

Disable exit-on-SIGPIPE in lldb

Occasionally, during test teardown, LLDB writes to a closed pipe.
Sometimes the communication is inherently unreliable, so LLDB tries to
avoid being killed due to SIGPIPE (it calls `signal(SIGPIPE, SIG_IGN)`).
However, LLVM's default SIGPIPE behavior overrides LLDB's, causing it to
exit with IO_ERR.

Opt LLDB out of the default SIGPIPE behavior. I expect that this will
resolve some LLDB test suite flakiness (tests randomly failing with
IO_ERR) that we've seen since r344372.

rdar://55750240

Differential Revision: https://reviews.llvm.org/D69148

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375288 91177308-0d34-0410-b5e6-96231b3b80d8