94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
/* 023.c COPYRIGHT FUJITSU LIMITED 2017-2019 */
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/* Preservation VL check signalhsndler before and after. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <errno.h>
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#include <sys/prctl.h>
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#include "common.h"
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static void sig_handler(int sig)
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{
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unsigned int vl = sve_get_vl();
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unsigned int vq = sve_vq_from_vl(vl);
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void *wr_buf = calloc(1, (vl * 35) + 15);
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void *align_wr_buf = (void *)(((unsigned long)(wr_buf + 15)) & ~15UL);
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unsigned int fpscr[2] = { 0, 0 };
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if (!wr_buf) {
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printf("calloc() failed.\n");
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goto out;
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}
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/* set dirty */
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gen_test_sve_dirty(align_wr_buf, vq);
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write_sve(align_wr_buf, vq, fpscr);
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free(wr_buf);
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out:
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return;
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}
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TEST_FUNC(TEST_NUMBER, vl, vq, unused1, unused2)
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{
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const int use_vq = sve_vq_from_vl(gen_set_vl(vl));
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struct fpsimd_sve_state(use_vq) rd_buf;
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struct fpsimd_sve_state(use_vq) wr_buf;
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unsigned int fpscr[2] = { 0, 0 };
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int ret = -1;
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unsigned int before_vl;
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unsigned int after_vl;
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print_test_overview(tp_num);
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memset(&rd_buf, 0, sizeof(rd_buf));
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memset(&wr_buf, 0, sizeof(wr_buf));
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if (signal(SIGUSR1, sig_handler) == SIG_ERR) {
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printf("Set signal handler failed.\n");
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goto out;
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}
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if (set_and_compare_vl(gen_set_vl(vl) | PR_SVE_VL_INHERIT)) {
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printf("prctl: error.\n");
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goto out;
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}
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/* before sighandler */
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gen_test_sve(&wr_buf, sve_vq_from_vl(gen_set_vl(vl)));
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write_sve(&wr_buf, sve_vq_from_vl(gen_set_vl(vl)), fpscr);
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before_vl = sve_get_vl();
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if (raise(SIGUSR1)) {
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perror("raise(SIGUSR1)");
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goto out;
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}
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after_vl = sve_get_vl();
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if (before_vl != after_vl) {
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printf("before VL=%d, after VL=%d\n", before_vl, after_vl);
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printf("VL compare failed.\n");
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goto out;
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}
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/* after sighandler */
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read_sve(&rd_buf, sve_vq_from_vl(after_vl), fpscr);
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/* compare */
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if (sve_compare(&wr_buf, &rd_buf, sve_vq_from_vl(after_vl))) {
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printf("compare failed.\n");
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goto out;
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}
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/* success. */
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ret = 0;
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out:
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if (ret == 0) {
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printf("RESULT: OK.\n");
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} else {
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printf("RESULT: NG.\n");
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}
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return ret;
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}
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