From 5e7392dc82ed7bf3e734cbca77a1c6fd044ec871 Mon Sep 17 00:00:00 2001 From: Thomas Weißschuh Date: Mon, 28 Apr 2025 14:40:15 +0200 Subject: tools/nolibc: fall back to sys_clock_gettime() in gettimeofday() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Acked-by: Willy Tarreau Link: https://lore.kernel.org/r/20250428-nolibc-misc-v2-14-3c043eeab06c@linutronix.de Signed-off-by: Thomas Weißschuh --- tools/include/nolibc/sys/time.h | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) 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 } -- cgit v1.2.3