Test "Scalable Vector Extension (SVE) support." on arm64

Change-Id: I3abaca932985a06b06887b962e769f2eac96c738

test/sve/src/032.c

@@ -0,0 +1,81 @@
+/* 032.c COPYRIGHT FUJITSU LIMITED 2017-2019 */
+/* Use fork() VL check if setting ONEXEC flags. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include "common.h"
+
+TEST_FUNC(TEST_NUMBER, vl, vq, unused1, unused2)
+{
+	struct fpsimd_sve_state(vq) rd_buf;
+	struct fpsimd_sve_state(vq) wr_buf;
+	unsigned int fpscr[2] = { 0, 0 };
+	pid_t cpid;
+	int ret = -1;
+
+	print_test_overview(tp_num);
+
+	memset(&rd_buf, 0, sizeof(rd_buf));
+	memset(&wr_buf, 0, sizeof(wr_buf));
+
+	gen_test_sve(&wr_buf, vq);
+	write_sve(&wr_buf, vq, fpscr);
+	read_sve(&rd_buf, vq, fpscr);
+
+	if (sve_compare(&wr_buf, &rd_buf, vq)) {
+		printf("parent-process compare failed.\n");
+		goto out;
+	}
+
+	if (set_and_compare_vl(gen_set_vl(vl) | PR_SVE_SET_VL_ONEXEC)) {
+		printf("prctl: error.\n");
+		goto out;
+	}
+
+	cpid = fork();
+	switch (cpid) {
+	case -1:
+		/* error */
+		printf("ERROR: fork()=%d, errno=%d\n", cpid, errno);
+		goto out;
+	case 0: {
+		/* child process */
+		struct fpsimd_sve_state(vq) c_rd_buf;
+		struct fpsimd_sve_state(vq) c_cmp_buf;
+
+		memset(&c_rd_buf, 0, sizeof(c_rd_buf));
+		if (get_and_compare_vl(vl)) {
+			printf("prctl: error.\n");
+			exit(-1);
+		}
+		read_sve(&c_rd_buf, vq, fpscr);
+
+		memset(&c_cmp_buf, 0, sizeof(c_cmp_buf));
+		gen_test_sve_low_128(&c_cmp_buf, vq, vq);
+
+		if (sve_compare(&c_cmp_buf, &c_rd_buf, vq)) {
+			printf("child-process compare failed.\n");
+			exit(-1);
+		}
+		exit(0);
+		break;
+	}
+	default:
+		/* parent process */
+		if (wait_child_exit(cpid)) {
+			goto out;
+		}
+		break;
+	}
+	ret = 0;
+out:
+	if (ret == -1) {
+		printf("RESULT: NG.\n");
+	} else {
+		printf("RESULT: OK.\n");
+	}
+	return ret;
+}