path: root/src
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authorRich Felker <>2014-12-18 20:44:51 -0500
committerRich Felker <>2014-12-18 20:44:51 -0500
commit7d3512126db7044525cf402255e0a85ac68dc2e9 (patch)
tree19e673df22f74feaf290bf8437d9df56bba19161 /src
parent0f859fc99325bbb25d506b28565e4a7385ffe0e6 (diff)
use tkill instead of tgkill in implementing raise
this shaves off a useless syscall for getting the caller's pid and brings raise into alignment with other functions which were adapted to use tkill rather than tgkill. commit 83dc6eb087633abcf5608ad651d3b525ca2ec35e documents the rationale for this change, and in particular why the tgkill syscall is useless for its designed purpose of avoiding races.
Diffstat (limited to 'src')
1 files changed, 2 insertions, 3 deletions
diff --git a/src/signal/raise.c b/src/signal/raise.c
index 35063c5b..717b1c91 100644
--- a/src/signal/raise.c
+++ b/src/signal/raise.c
@@ -5,12 +5,11 @@
int raise(int sig)
- int pid, tid, ret;
+ int tid, ret;
sigset_t set;
tid = __syscall(SYS_gettid);
- pid = __syscall(SYS_getpid);
- ret = syscall(SYS_tgkill, pid, tid, sig);
+ ret = syscall(SYS_tkill, tid, sig);
return ret;