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newlib-cygwin/libgloss/riscv/sys_gettimeofday.c
Kito Cheng 20d0081998 RISC-V: Using SYS_clock_gettime64 for rv32 libgloss.
- RISC-V 32 bits linux/glibc didn't provide gettimeofday anymore
   after upstream, because RV32 didn't have backward compatible issue,
   so RV32 only support 64 bits time related system call.

 - So using clock_gettime64 call instead for rv32 libgloss.
2021-04-13 12:54:49 +02:00

32 lines
796 B
C

#include <machine/syscall.h>
#include <sys/time.h>
#include <stdint.h>
#include "internal_syscall.h"
/* Get the current time. Only relatively correct. */
int
_gettimeofday(struct timeval *tp, void *tzp)
{
#if __riscv_xlen == 32
struct __timespec64
{
int64_t tv_sec; /* Seconds */
# if BYTE_ORDER == BIG_ENDIAN
int32_t __padding; /* Padding */
int32_t tv_nsec; /* Nanoseconds */
# else
int32_t tv_nsec; /* Nanoseconds */
int32_t __padding; /* Padding */
# endif
};
struct __timespec64 ts64;
int rv;
rv = syscall_errno (SYS_clock_gettime64, 2, 0, (long)&ts64, 0, 0, 0, 0);
tp->tv_sec = ts64.tv_sec;
tp->tv_usec = ts64.tv_nsec * 1000;
return rv;
#else
return syscall_errno (SYS_gettimeofday, 1, tp, 0, 0, 0, 0, 0);
#endif
}