X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fsignal%2Fraise.c;h=6fa43bef97ee1508c23e1dd1328e588ddcf68cf4;hb=4ca442157e381690202c3bcc102627d137fd0466;hp=f437d23f2b4d2a311efb0d96b3ada00373a8a780;hpb=370f78f2c80c64b7b0780a01e672494a26b5678e;p=musl diff --git a/src/signal/raise.c b/src/signal/raise.c index f437d23f..6fa43bef 100644 --- a/src/signal/raise.c +++ b/src/signal/raise.c @@ -1,18 +1,17 @@ #include #include +#include #include "syscall.h" +#include "pthread_impl.h" int raise(int sig) { int pid, tid, ret; - /* Getting the pid/tid pair is not atomic, and could give wrong - * result if a fork occurs in a signal handler between the two - * syscalls. Use the tgkill syscall's ESRCH semantics to detect - * this condition and retry. */ - do { - tid = syscall0(__NR_gettid); - pid = syscall0(__NR_getpid); - ret = syscall3(__NR_tgkill, pid, tid, sig); - } while (ret<0 && errno == ESRCH); + sigset_t set; + __block_app_sigs(&set); + tid = __syscall(SYS_gettid); + pid = __syscall(SYS_getpid); + ret = syscall(SYS_tgkill, pid, tid, sig); + __restore_sigs(&set); return ret; }