[PATCH 01/23] linux: Simplify clock_adjtime
Adhemerval Zanella
adhemerval.zanella@linaro.org
Mon Jul 13 17:10:03 GMT 2020
With arch-syscall.h it can now assumes the existance of either
__NR_clock_adjtime or __NR_clock_adjtime_time64. The 32-bit time_t
support is now only build for !__ASSUME_TIME64_SYSCALLS.
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
---
sysdeps/unix/sysv/linux/clock_adjtime.c | 23 ++++++++++-------------
1 file changed, 10 insertions(+), 13 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/clock_adjtime.c b/sysdeps/unix/sysv/linux/clock_adjtime.c
index 764a60b9bf..4caff2ad05 100644
--- a/sysdeps/unix/sysv/linux/clock_adjtime.c
+++ b/sysdeps/unix/sysv/linux/clock_adjtime.c
@@ -26,15 +26,13 @@
int
__clock_adjtime64 (const clockid_t clock_id, struct __timex64 *tx64)
{
-#ifdef __ASSUME_TIME64_SYSCALLS
-# ifndef __NR_clock_adjtime64
-# define __NR_clock_adjtime64 __NR_clock_adjtime
-# endif
- return INLINE_SYSCALL_CALL (clock_adjtime64, clock_id, tx64);
-#else
- int ret = INLINE_SYSCALL_CALL (clock_adjtime64, clock_id, tx64);
- if (errno != ENOSYS)
- return ret;
+#ifndef __NR_clock_adjtime64
+# define __NR_clock_adjtime64 __NR_clock_adjtime
+#endif
+ int r = INLINE_SYSCALL_CALL (clock_adjtime64, clock_id, tx64);
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r >= 0 || errno != ENOSYS)
+ return r;
if (tx64->modes & ADJ_SETOFFSET
&& ! in_time_t_range (tx64->time.tv_sec))
@@ -44,12 +42,11 @@ __clock_adjtime64 (const clockid_t clock_id, struct __timex64 *tx64)
}
struct timex tx32 = valid_timex64_to_timex (*tx64);
- int retval = INLINE_SYSCALL_CALL (clock_adjtime, clock_id, &tx32);
- if (retval >= 0)
+ r = INLINE_SYSCALL_CALL (clock_adjtime, clock_id, &tx32);
+ if (r >= 0)
*tx64 = valid_timex_to_timex64 (tx32);
-
- return retval;
#endif
+ return r;
}
#if __TIMESIZE != 64
--
2.25.1
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