overhaul implementation-internal signal protections

[musl] / src / signal / raise.c

diff --git a/src/signal/raise.c b/src/signal/raise.c
index 52f8b42..71e0505 100644 (file)
--- a/src/signal/raise.c
+++ b/src/signal/raise.c
@@ -1,7 +1,16 @@
 #include <signal.h>
+#include <errno.h>
+#include <stdint.h>
 #include "syscall.h"
 
 int raise(int sig)
 {
-       return __syscall_kill(__syscall_getpid(), sig);
+       int pid, tid, ret;
+       sigset_t set;
+       __syscall(SYS_rt_sigprocmask, SIG_BLOCK, (uint64_t[]){-1}, &set, 8);
+       tid = syscall(SYS_gettid);
+       pid = syscall(SYS_getpid);
+       ret = syscall(SYS_tgkill, pid, tid, sig);
+       __syscall(SYS_rt_sigprocmask, SIG_SETMASK, &set, 0, 8);
+       return ret;
 }