113 lines
2.3 KiB
C
113 lines
2.3 KiB
C
/* 011.c COPYRIGHT FUJITSU LIMITED 2016-2019 */
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/* Preservation check signalhsndler(use sigaltstack) 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 "common.h"
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static unsigned long used_stack_addr;
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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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return;
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}
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/* stack addr set */
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used_stack_addr = (unsigned long)&vl;
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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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}
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#define ALTSTACK_SIZE 16384 /* recommendation size */
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TEST_FUNC(TEST_NUMBER, unused1, vq, unused2, unused3)
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{
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struct fpsimd_sve_state(vq) rd_buf;
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struct fpsimd_sve_state(vq) wr_buf;
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stack_t ss;
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unsigned int fpscr[2] = { 0, 0 };
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int ret = -1;
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void *sstack = calloc(1, ALTSTACK_SIZE);
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void *cmp_ss = calloc(1, ALTSTACK_SIZE);
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struct sigaction act;
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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 (!sstack || !cmp_ss) {
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printf("calloc() failed.\n");
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goto end;
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}
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memset(&ss, 0, sizeof(ss));
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ss.ss_sp = sstack;
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ss.ss_size = ALTSTACK_SIZE;
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ss.ss_flags = 0;
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if (sigaltstack(&ss, NULL)) {
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perror("sigaltstack");
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goto out;
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}
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memset(&act, 0, sizeof(act));
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act.sa_flags = SA_ONSTACK | SA_RESETHAND;
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act.sa_handler = sig_handler;
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if (sigaction(SIGUSR1, &act, NULL)) {
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perror("sigaction()");
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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, vq);
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write_sve(&wr_buf, vq, fpscr);
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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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if ((unsigned long)ss.ss_sp > used_stack_addr ||
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used_stack_addr >= (unsigned long)ss.ss_sp + ss.ss_size) {
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printf("altstack area unused.\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, vq, fpscr);
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/* compare */
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if (sve_compare(&wr_buf, &rd_buf, vq)) {
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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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free(sstack);
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free(cmp_ss);
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end:
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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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