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authorRich Felker <dalias@aerifal.cx>2011-03-09 20:21:23 -0500
committerRich Felker <dalias@aerifal.cx>2011-03-09 20:21:23 -0500
commit6dc05fbe198ccb326dceb8f05ee943f9a4dfb4ba (patch)
tree208a7b8da2bd16000f4b1d7343a91cf267dda055 /src/thread/pthread_self.c
parent0bed7e0acfd34e3fb63ca0e4d99b7592571355a9 (diff)
downloadmusl-6dc05fbe198ccb326dceb8f05ee943f9a4dfb4ba.tar.gz
optimize pthread initialization
the set_tid_address returns the tid (which is also the pid when called from the initial thread) so there is no need to make a separate syscall to get pid/tid.
Diffstat (limited to 'src/thread/pthread_self.c')
-rw-r--r--src/thread/pthread_self.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/thread/pthread_self.c b/src/thread/pthread_self.c
index 028d387b..d2de2cb8 100644
--- a/src/thread/pthread_self.c
+++ b/src/thread/pthread_self.c
@@ -24,10 +24,10 @@ static int init_main_thread()
main_thread.self = &main_thread;
if (__set_thread_area(&main_thread) < 0)
return -1;
- syscall1(__NR_set_tid_address, (long)&main_thread.tid);
main_thread.errno_ptr = __errno_location();
libc.errno_location = errno_location;
- main_thread.tid = main_thread.pid = getpid();
+ main_thread.tid = main_thread.pid =
+ syscall1(__NR_set_tid_address, (long)&main_thread.tid);
return 0;
}