forked from OSchip/llvm-project
399408a92f
On Darwin, we currently use forkpty to communicate with the "atos" symbolizer. There are several problems that fork[pty] has, e.g. that after fork, interceptors are still active and this sometimes causes crashes or hangs. This is especially problematic for TSan, which uses interceptors for OS-provided locks and mutexes, and even Libc functions use those. This patch replaces forkpty with posix_spawn on Darwin. Since posix_spawn doesn't fork (at least on Darwin), the interceptors are not a problem. Another benefit is that we'll handle post-fork failures (e.g. sandbox disallows "exec") gracefully now. Related revisions and previous attempts that were blocked by or had to be revered due to test failures: https://reviews.llvm.org/D48451 https://reviews.llvm.org/D40032 Reviewed By: kubamracek Differential Revision: https://reviews.llvm.org/D65253 llvm-svn: 368947 |
||
|---|---|---|
| .. | ||
| TestCases | ||
| Unit | ||
| CMakeLists.txt | ||
| lit.cfg.py | ||
| lit.site.cfg.py.in | ||