diff options
| author | Thomas Weißschuh <thomas.weissschuh@linutronix.de> | 2025-04-28 14:40:15 +0200 |
|---|---|---|
| committer | Thomas Weißschuh <linux@weissschuh.net> | 2025-05-21 15:32:15 +0200 |
| commit | 5e7392dc82ed7bf3e734cbca77a1c6fd044ec871 (patch) | |
| tree | cf7ad24729506cbecb6c9367d421d0d5b198f531 | |
| parent | a009a0c6faa9e7ffac13d55ef6cdac1f9a68efbe (diff) | |
tools/nolibc: fall back to sys_clock_gettime() in gettimeofday()
Newer architectures (like riscv32) do not implement sys_gettimeofday().
In those cases fall back to sys_clock_gettime().
While that does not support the timezone argument of sys_gettimeofday(),
specifying this argument invokes undefined behaviour, so it's safe to ignore.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20250428-nolibc-misc-v2-14-3c043eeab06c@linutronix.de
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
| -rw-r--r-- | tools/include/nolibc/sys/time.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/tools/include/nolibc/sys/time.h b/tools/include/nolibc/sys/time.h index 785961c52fa3..33782a19aae9 100644 --- a/tools/include/nolibc/sys/time.h +++ b/tools/include/nolibc/sys/time.h @@ -13,6 +13,8 @@ #include "../arch.h" #include "../sys.h" +static int sys_clock_gettime(clockid_t clockid, struct timespec *tp); + /* * int gettimeofday(struct timeval *tv, struct timezone *tz); */ @@ -23,7 +25,18 @@ int sys_gettimeofday(struct timeval *tv, struct timezone *tz) #ifdef __NR_gettimeofday return my_syscall2(__NR_gettimeofday, tv, tz); #else - return __nolibc_enosys(__func__, tv, tz); + (void) tz; /* Non-NULL tz is undefined behaviour */ + + struct timespec tp; + int ret; + + ret = sys_clock_gettime(CLOCK_REALTIME, &tp); + if (!ret && tv) { + tv->tv_sec = tp.tv_sec; + tv->tv_usec = tp.tv_nsec / 1000; + } + + return ret; #endif } |