X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=sidebyside;f=src%2Ftime%2Fclock_gettime.c;h=799251d8a7c7cab612dc620fb0ceabd10797b4c2;hb=ac0acd569e01735fc6052d43fdf57f3a07c93f3d;hp=dab09d50cfc49af32433caa890218301549aa220;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/time/clock_gettime.c b/src/time/clock_gettime.c
index dab09d50..799251d8 100644
--- a/src/time/clock_gettime.c
+++ b/src/time/clock_gettime.c
@@ -1,7 +1,41 @@
 #include <time.h>
+#include <errno.h>
+#include <stdint.h>
 #include "syscall.h"
+#include "libc.h"
+#include "atomic.h"
 
-int clock_gettime(clockid_t clk, struct timespec *ts)
+static int sc_clock_gettime(clockid_t clk, struct timespec *ts)
 {
-	return syscall2(__NR_clock_gettime, clk, (long)ts);
+	int r = __syscall(SYS_clock_gettime, clk, ts);
+	if (!r) return r;
+	if (r == -ENOSYS) {
+		if (clk == CLOCK_REALTIME) {
+			__syscall(SYS_gettimeofday, ts, 0);
+			ts->tv_nsec = (int)ts->tv_nsec * 1000;
+			return 0;
+		}
+		r = -EINVAL;
+	}
+	errno = -r;
+	return -1;
 }
+
+void *__vdsosym(const char *, const char *);
+
+int __clock_gettime(clockid_t clk, struct timespec *ts)
+{
+#ifdef VDSO_CGT_SYM
+	static int (*cgt)(clockid_t, struct timespec *);
+	if (!cgt) {
+		void *f = __vdsosym(VDSO_CGT_VER, VDSO_CGT_SYM);
+		if (!f) f = (void *)sc_clock_gettime;
+		a_cas_p(&cgt, 0, f);
+	}
+	return cgt(clk, ts);
+#else
+	return sc_clock_gettime(clk, ts);
+#endif
+}
+
+weak_alias(__clock_gettime, clock_gettime);