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authorRich Felker <dalias@aerifal.cx>2011-04-17 16:32:15 -0400
committerRich Felker <dalias@aerifal.cx>2011-04-17 16:32:15 -0400
commiteb0e8fa0b1960cff4bd65ebefc798f70273b0bc9 (patch)
tree69398f2a72230d4faeb05b0712c4af80376cd30c
parent09dae2b7b66f741b30aa7ce95ab395239da20762 (diff)
downloadmusl-eb0e8fa0b1960cff4bd65ebefc798f70273b0bc9.tar.gz
debloat: use __syscall instead of syscall where possible
don't waste time (and significant code size due to function call overhead!) setting errno when the result of a syscall does not matter or when it can't fail.
-rw-r--r--src/stdio/__fdopen.c4
-rw-r--r--src/stdio/__lockfile.c2
-rw-r--r--src/stdio/fopen.c2
-rw-r--r--src/stdio/tmpfile.c2
-rw-r--r--src/thread/pthread_mutex_trylock.c2
-rw-r--r--src/thread/pthread_self.c2
-rw-r--r--src/unistd/sync.c2
7 files changed, 8 insertions, 8 deletions
diff --git a/src/stdio/__fdopen.c b/src/stdio/__fdopen.c
index a0102674..b13318e5 100644
--- a/src/stdio/__fdopen.c
+++ b/src/stdio/__fdopen.c
@@ -20,8 +20,8 @@ FILE *__fdopen(int fd, const char *mode)
/* Set append mode on fd if opened for append */
if (*mode == 'a') {
- int flags = syscall(SYS_fcntl, fd, F_GETFL, 0);
- syscall(SYS_fcntl, fd, F_SETFL, flags | O_APPEND);
+ int flags = __syscall(SYS_fcntl, fd, F_GETFL);
+ __syscall(SYS_fcntl, fd, F_SETFL, flags | O_APPEND);
}
f->fd = fd;
diff --git a/src/stdio/__lockfile.c b/src/stdio/__lockfile.c
index c0948255..4e0239e7 100644
--- a/src/stdio/__lockfile.c
+++ b/src/stdio/__lockfile.c
@@ -15,6 +15,6 @@ void __lockfile(FILE *f)
}
while (a_cas(&f->lock, 0, tid))
if (spins) spins--, a_spin();
- else syscall(SYS_sched_yield);
+ else __syscall(SYS_sched_yield);
f->lockcount = 1;
}
diff --git a/src/stdio/fopen.c b/src/stdio/fopen.c
index c2a350d1..469de6f0 100644
--- a/src/stdio/fopen.c
+++ b/src/stdio/fopen.c
@@ -27,7 +27,7 @@ FILE *fopen(const char *filename, const char *mode)
f = __fdopen(fd, mode);
if (f) return f;
- syscall(SYS_close, fd);
+ __syscall(SYS_close, fd);
return 0;
}
diff --git a/src/stdio/tmpfile.c b/src/stdio/tmpfile.c
index 18c232f7..926d6601 100644
--- a/src/stdio/tmpfile.c
+++ b/src/stdio/tmpfile.c
@@ -17,7 +17,7 @@ FILE *tmpfile(void)
fd = syscall(SYS_open, s, O_RDWR|O_CREAT|O_EXCL|O_LARGEFILE, 0600);
if (fd >= 0) {
f = __fdopen(fd, "w+");
- syscall(SYS_unlink, s);
+ __syscall(SYS_unlink, s);
return f;
}
}
diff --git a/src/thread/pthread_mutex_trylock.c b/src/thread/pthread_mutex_trylock.c
index ea1fa805..1fb6d0f2 100644
--- a/src/thread/pthread_mutex_trylock.c
+++ b/src/thread/pthread_mutex_trylock.c
@@ -14,7 +14,7 @@ int pthread_mutex_trylock(pthread_mutex_t *m)
if (m->_m_type >= 4) {
if (!self->robust_list.off)
- syscall(SYS_set_robust_list,
+ __syscall(SYS_set_robust_list,
&self->robust_list, 3*sizeof(long));
self->robust_list.off = (char*)&m->_m_lock-(char *)&m->_m_next;
self->robust_list.pending = &m->_m_next;
diff --git a/src/thread/pthread_self.c b/src/thread/pthread_self.c
index e26476ce..e8bb9181 100644
--- a/src/thread/pthread_self.c
+++ b/src/thread/pthread_self.c
@@ -22,7 +22,7 @@ static int init_main_thread()
main_thread.errno_ptr = __errno_location();
libc.errno_location = errno_location;
main_thread.tid = main_thread.pid =
- syscall(SYS_set_tid_address, &main_thread.tid);
+ __syscall(SYS_set_tid_address, &main_thread.tid);
return 0;
}
diff --git a/src/unistd/sync.c b/src/unistd/sync.c
index 20fafb4a..f18765aa 100644
--- a/src/unistd/sync.c
+++ b/src/unistd/sync.c
@@ -3,5 +3,5 @@
void sync(void)
{
- syscall(SYS_sync);
+ __syscall(SYS_sync);
}