@@ -25,6 +25,7 @@
#include "arch.h"
#include "errno.h"
+#include "string.h"
#include "types.h"
/* Functions in this file only describe syscalls. They're declared static so
@@ -552,7 +553,34 @@ long getpagesize(void)
static __attribute__((unused))
int sys_gettimeofday(struct timeval *tv, struct timezone *tz)
{
- return my_syscall2(__NR_gettimeofday, tv, tz);
+#if defined(__NR_clock_gettime) || defined(__NR_clock_gettime64)
+#ifdef __NR_clock_gettime64
+ const long nr_clock_gettime = __NR_clock_gettime64;
+#elif __SIZEOF_LONG__ == 8
+ const long nr_clock_gettime = __NR_clock_gettime;
+#else
+#error No __NR_clock_gettime64 defined, cannot implement time64 sys_gettimeofday()
+#endif
+ struct timespec ts;
+ int ret;
+
+ /* set tz to zero to avoid random number */
+ if (tz != NULL)
+ memset(tz, 0, sizeof(struct timezone));
+
+ if (tv == NULL)
+ return 0;
+
+ ret = my_syscall2(nr_clock_gettime, CLOCK_REALTIME, &ts);
+ if (ret)
+ return ret;
+
+ tv->tv_sec = ts.tv_sec;
+ tv->tv_usec = (unsigned int)ts.tv_nsec / 1000;
+ return 0;
+#else
+#error Neither __NR_clock_gettime nor __NR_clock_gettime64 defined, cannot implement sys_gettimeofday()
+#endif
}
static __attribute__((unused))
It's time to provide 64bit time structs for all platforms, for y2038 is near. clock_gettime64 has been added from at least v5.0.0. Suggested-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/linux-riscv/afc4944f-9494-4367-906d-06ac47648ab7@app.fastmail.com/ Signed-off-by: Zhangjin Wu <falcon@tinylab.org> --- tools/include/nolibc/sys.h | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-)