| 1 | |
| 2 | |
| 3 | * Basic test coverage for critical regions and rseq_current_cpu().
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| 4 |
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| 5 |
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| 6 | #define _GNU_SOURCE
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| 7 | #include <assert.h>
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| 8 | #include <sched.h>
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| 9 | #include <signal.h>
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| 10 | #include <stdio.h>
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| 11 | #include <string.h>
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| 12 | #include <sys/time.h>
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| 13 |
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| 14 | #include "rseq.h"
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| 15 |
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| 16 | void test_cpu_pointer(void)
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| 17 | {
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| 18 | cpu_set_t affinity, test_affinity;
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| 19 | int i;
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| 20 |
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| 21 | sched_getaffinity(0, sizeof(affinity), &affinity);
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| 22 | CPU_ZERO(&test_affinity);
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| 23 | for (i = 0; i < CPU_SETSIZE; i++) {
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| 24 | if (CPU_ISSET(i, &affinity)) {
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| 25 | int node;
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| 26 |
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| 27 | CPU_SET(i, &test_affinity);
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| 28 | sched_setaffinity(0, sizeof(test_affinity),
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| 29 | &test_affinity);
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| 30 | assert(sched_getcpu() == i);
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| 31 | assert(rseq_current_cpu() == i);
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| 32 | assert(rseq_current_cpu_raw() == i);
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| 33 | assert(rseq_cpu_start() == i);
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| 34 | node = rseq_fallback_current_node();
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| 35 | assert(rseq_current_node_id() == node);
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| 36 | CPU_CLR(i, &test_affinity);
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| 37 | }
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| 38 | }
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| 39 | sched_setaffinity(0, sizeof(affinity), &affinity);
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| 40 | }
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| 41 |
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| 42 | int main(int argc, char **argv)
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| 43 | {
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| 44 | if (rseq_register_current_thread()) {
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| 45 | fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
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| 46 | errno, strerror(errno));
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| 47 | goto init_thread_error;
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| 48 | }
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| 49 | printf("testing current cpu\n");
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| 50 | test_cpu_pointer();
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| 51 | if (rseq_unregister_current_thread()) {
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| 52 | fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
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| 53 | errno, strerror(errno));
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| 54 | goto init_thread_error;
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| 55 | }
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| 56 | return 0;
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| 57 |
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| 58 | init_thread_error:
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| 59 | return -1;
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| 60 | }
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