tree df127603e6e7c4260127bde1e0866cc01c2887dc
parent 8fefd17abb546caae827649b42dbd789fd85cbfc
author Dmitry Vyukov <dvyukov@google.com> 1669737108 +0100
committer Copybara-Service <copybara-worker@google.com> 1669801207 -0800

tsan: fix epoll_pwait2 interceptor

epoll_pwait2 is new and may not be present in libc and/or kernel.
Since we effectively add it to libc (as will be probed by the program
using dlsym or a weak function pointer) we need to handle the case
when it's not present in the actual libc.

Reviewed By: melver

Differential Revision: https://reviews.llvm.org/D138929

GitOrigin-RevId: 099997540f45a50f1bfb1da85cd222e3509b87cb