5bc54a3bbe
- 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
44 lines
944 B
C
44 lines
944 B
C
#include <stdlib.h>
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#include <stdio.h>
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#define _GNU_SOURCE
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <time.h>
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long
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ts_delta(struct timespec *t1, struct timespec *t2)
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{
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long delta = (t2->tv_sec - t1->tv_sec) * 1000000000L;
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delta += (t2->tv_nsec - t1->tv_nsec);
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return delta;
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}
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int
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main(int argc, char **argv)
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{
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struct timespec d1;
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struct timespec d2;
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struct timespec d3;
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long delta1;
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long delta2;
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printf("*** C1186T02: test start\n");
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clock_gettime(CLOCK_REALTIME, &d1);
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syscall(SYS_clock_gettime, CLOCK_REALTIME, &d2);
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clock_gettime(CLOCK_REALTIME, &d3);
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delta1 = ts_delta(&d1, &d2);
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delta2 = ts_delta(&d2, &d3);
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printf("%ld.%09ld\n", d1.tv_sec, d1.tv_nsec);
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printf("%ld.%09ld %ld\n", d2.tv_sec, d2.tv_nsec, delta1);
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printf("%ld.%09ld %ld\n", d3.tv_sec, d3.tv_nsec, delta2);
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if (delta1 <= 0 || delta2 <= 0) {
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printf("*** C1186T02: NG\n");
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exit(1);
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}
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else {
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printf("*** C1186T02: OK\n");
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}
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exit(0);
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}
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