28f650a2f7
If we are using vfork, and if something (such as TSAN) is intercepting the sigaction function, then we must call the system call, not the libc function. Otherwise the intercepted sigaction call in the child may trash the data structures in the parent. Change-Id: Id9588bfeaa934f32c920bf829c5839be5cacf243 Reviewed-on: https://go-review.googlesource.com/50251 Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com> Reviewed-by: Austin Clements <austin@google.com>
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