tree 6fc5dfb081a857da8b0e40c62f10e52075b63781
parent 6033af7b886804e5c25b0048c8c611af986d63a7
author Matt Morehouse <mascasa@google.com> 1525823105 +0000
committer Copybara-Service <copybara-worker@google.com> 1616739413 -0700

[libFuzzer] Guard symbolization with try-lock.

Summary:
When out-of-memory or timeout occurs, threads can be stopped during
symbolization, thereby causing a deadlock when the OOM/TO handlers
attempt symbolization.  We avoid this deadlock by skipping symbolization
if another thread is symbolizing.

Reviewers: kcc

Reviewed By: kcc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D46605

llvm-svn: 331825
GitOrigin-RevId: 14cf71a3a505eea44bcea188df510107d9655205