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setjmp: optimize x86 longjmp epilogues
[musl]
/
src
/
stdio
/
__stdio_write.c
diff --git
a/src/stdio/__stdio_write.c
b/src/stdio/__stdio_write.c
index
da45673
..
d2d8947
100644
(file)
--- a/
src/stdio/__stdio_write.c
+++ b/
src/stdio/__stdio_write.c
@@
-1,11
+1,5
@@
#include "stdio_impl.h"
#include "stdio_impl.h"
-#include <pthread.h>
-
-static void cleanup(void *p)
-{
- FILE *f = p;
- if (!f->lockcount) __unlockfile(f);
-}
+#include <sys/uio.h>
size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
{
size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
{
@@
-18,9
+12,7
@@
size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
int iovcnt = 2;
ssize_t cnt;
for (;;) {
int iovcnt = 2;
ssize_t cnt;
for (;;) {
- pthread_cleanup_push(cleanup, f);
- cnt = syscall_cp(SYS_writev, f->fd, iov, iovcnt);
- pthread_cleanup_pop(0);
+ cnt = syscall(SYS_writev, f->fd, iov, iovcnt);
if (cnt == rem) {
f->wend = f->buf + f->buf_size;
f->wpos = f->wbase = f->buf;
if (cnt == rem) {
f->wend = f->buf + f->buf_size;
f->wpos = f->wbase = f->buf;
@@
-33,11
+25,8
@@
size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len)
}
rem -= cnt;
if (cnt > iov[0].iov_len) {
}
rem -= cnt;
if (cnt > iov[0].iov_len) {
- f->wpos = f->wbase = f->buf;
cnt -= iov[0].iov_len;
iov++; iovcnt--;
cnt -= iov[0].iov_len;
iov++; iovcnt--;
- } else if (iovcnt == 2) {
- f->wbase += cnt;
}
iov[0].iov_base = (char *)iov[0].iov_base + cnt;
iov[0].iov_len -= cnt;
}
iov[0].iov_base = (char *)iov[0].iov_base + cnt;
iov[0].iov_len -= cnt;