1 /*
2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
5 * 1.0 of the CDDL.
6 *
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
10 */
11
12 /*
13 * Copyright 2023 Oxide Computer Company
14 */
15
16 /*
17 * This is a simple program that is meant for use as other programs consuming
18 * it. It simply reads the extended registers and dumps them. The expectation
19 * is someone else is showing up and doing something ahead of that.
20 */
21
22 #include <err.h>
23 #include <stdio.h>
24 #include <stdlib.h>
25
26 #include "xsave_util.h"
27
28 static xsu_fpu_t fpu;
29
30 int
main(int argc,char * argv[])31 main(int argc, char *argv[])
32 {
33 FILE *f;
34 uint32_t hwsup;
35
36 if (argc != 2) {
37 warnx("missing required filename to write to");
38 (void) fprintf(stderr, "Usage: %s <file>\n", argv[0]);
39 exit(EXIT_FAILURE);
40 }
41
42 hwsup = xsu_hwsupport();
43 f = fopen(argv[1], "w+");
44 if (f == NULL) {
45 err(EXIT_FAILURE, "failed to open %s", argv[1]);
46 }
47
48 xsu_getfpu(&fpu, hwsup);
49 xsu_dump(f, &fpu, hwsup);
50
51 return (EXIT_SUCCESS);
52 }
53