Fixed time processing.

- arm64: Get TSC corresponding to boot time from IHK.

- x86_64: Calculate the current time using vdso.

Refs: #1186
Fujitsu: POSTK_DEBUG_ARCH_DEP_52
Change-Id: I293ba4bbe5390d50dea44b8a5b7471f59237daff

test/issues/1186/C1186.c

@@ -0,0 +1,43 @@
+#include <stdlib.h>
+#include <stdio.h>
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <time.h>
+
+long
+ts_delta(struct timespec *t1, struct timespec *t2)
+{
+	long delta = (t2->tv_sec - t1->tv_sec) * 1000000000L;
+
+	delta += (t2->tv_nsec - t1->tv_nsec);
+	return delta;
+}
+
+int
+main(int argc, char **argv)
+{
+	struct timespec d1;
+	struct timespec d2;
+	struct timespec d3;
+	long delta1;
+	long delta2;
+
+	printf("*** C1186T02: test start\n");
+	clock_gettime(CLOCK_REALTIME, &d1);
+	syscall(SYS_clock_gettime, CLOCK_REALTIME, &d2);
+	clock_gettime(CLOCK_REALTIME, &d3);
+	delta1 = ts_delta(&d1, &d2);
+	delta2 = ts_delta(&d2, &d3);
+	printf("%ld.%09ld\n", d1.tv_sec, d1.tv_nsec);
+	printf("%ld.%09ld %ld\n", d2.tv_sec, d2.tv_nsec, delta1);
+	printf("%ld.%09ld %ld\n", d3.tv_sec, d3.tv_nsec, delta2);
+	if (delta1 <= 0 || delta2 <= 0) {
+		printf("*** C1186T02: NG\n");
+		exit(1);
+	}
+	else {
+		printf("*** C1186T02: OK\n");
+	}
+	exit(0);
+}