Align the implementation of the fallback handling inside sys_lseek()
with the rest of nolibc.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
tools/include/nolibc/sys.h | 42 ++++++++++++++----------------------------
1 file changed, 14 insertions(+), 28 deletions(-)
diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index fc3c8a3d02e9a031aad2229a430c232eb60065b1..f31db0f471131f82389129989054e2b55a41a7cb 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -581,41 +581,27 @@ off_t sys_lseek(int fd, off_t offset, int whence)
#if defined(__NR_lseek)
return my_syscall3(__NR_lseek, fd, offset, whence);
#else
- return __nolibc_enosys(__func__, fd, offset, whence);
-#endif
-}
+ __kernel_loff_t loff = 0;
+ off_t result;
+ int ret;
-static __attribute__((unused))
-int sys_llseek(int fd, unsigned long offset_high, unsigned long offset_low,
- __kernel_loff_t *result, int whence)
-{
-#if defined(__NR_llseek)
- return my_syscall5(__NR_llseek, fd, offset_high, offset_low, result, whence);
-#else
- return __nolibc_enosys(__func__, fd, offset_high, offset_low, result, whence);
+ /* Only exists on 32bit where nolibc off_t is also 32bit */
+ ret = my_syscall5(__NR_llseek, fd, 0, offset, &loff, whence);
+ if (ret < 0)
+ result = ret;
+ else if (loff != (off_t)loff)
+ result = -EOVERFLOW;
+ else
+ result = loff;
+
+ return result;
#endif
}
static __attribute__((unused))
off_t lseek(int fd, off_t offset, int whence)
{
- __kernel_loff_t loff = 0;
- off_t result;
- int ret;
-
- result = sys_lseek(fd, offset, whence);
- if (result == -ENOSYS) {
- /* Only exists on 32bit where nolibc off_t is also 32bit */
- ret = sys_llseek(fd, 0, offset, &loff, whence);
- if (ret < 0)
- result = ret;
- else if (loff != (off_t)loff)
- result = -EOVERFLOW;
- else
- result = loff;
- }
-
- return __sysret(result);
+ return __sysret(sys_lseek(fd, offset, whence));
}
--
2.50.1