only fallback to gettimeofday/settimeofday syscalls if they exist

riscv32 and future architectures only provide the clock_ functions.

diff --git a/src/time/clock_gettime.c b/src/time/clock_gettime.c
index 3e1d097..c7e66a5 100644 (file)
--- a/src/time/clock_gettime.c
+++ b/src/time/clock_gettime.c
@@ -80,10 +80,12 @@ int __clock_gettime(clockid_t clk, struct timespec *ts)
                return __syscall_ret(r);
        long ts32[2];
        r = __syscall(SYS_clock_gettime, clk, ts32);
+#ifdef SYS_gettimeofday
        if (r==-ENOSYS && clk==CLOCK_REALTIME) {
                r = __syscall(SYS_gettimeofday, ts32, 0);
                ts32[1] *= 1000;
        }
+#endif
        if (!r) {
                ts->tv_sec = ts32[0];
                ts->tv_nsec = ts32[1];
@@ -92,6 +94,7 @@ int __clock_gettime(clockid_t clk, struct timespec *ts)
        return __syscall_ret(r);
 #else
        r = __syscall(SYS_clock_gettime, clk, ts);
+#ifdef SYS_gettimeofday
        if (r == -ENOSYS) {
                if (clk == CLOCK_REALTIME) {
                        __syscall(SYS_gettimeofday, ts, 0);
@@ -100,6 +103,7 @@ int __clock_gettime(clockid_t clk, struct timespec *ts)
                }
                r = -EINVAL;
        }
+#endif
        return __syscall_ret(r);
 #endif
 }