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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 /src/stdio
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.
Diffstat (limited to 'src/stdio')
-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
4 files changed, 5 insertions, 5 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;
}
}