[PATCH] D29954: [PGO] Suspend SIGKILL for PR_SET_PDEATHSIG in profile-write

[Rong Xu via Phabricator via llvm-commits]

xur updated this revision to Diff 88595.
xur added a comment.

Add a testcase

sing a fake count section to increase the profile size.
Main process gets to profile run-time first and dump the profile.
It will then exit when child process writes the profile.
Without this patch, there is a high chance of getting 0 size profile.


https://reviews.llvm.org/D29954

Files:
  lib/profile/InstrProfilingFile.c
  lib/profile/InstrProfilingUtil.c
  lib/profile/InstrProfilingUtil.h
  test/profile/Linux/prctl.c

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