1 /*
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright © 2020 Keith Packard
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 *
18 * 3. Neither the name of the copyright holder nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
33 * OF THE POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #include <stdlib.h>
37 #include <semihost.h>
38 #include <string.h>
39
40 #define TEST_FILE_NAME "SEMIREAD.TXT"
41 #define TEST_STRING "hello, world"
42 #define TEST_STRING_LEN 12
43
44 int
main(void)45 main(void)
46 {
47 int fd;
48 uintptr_t not_written;
49 uintptr_t not_read;
50 int code = 0;
51 int ret;
52 char buf[TEST_STRING_LEN + 10];
53
54 fd = sys_semihost_open(TEST_FILE_NAME, SH_OPEN_W);
55 if (fd < 0) {
56 printf("open %s failed\n", TEST_FILE_NAME);
57 exit(1);
58 }
59 not_written = sys_semihost_write(fd, TEST_STRING, TEST_STRING_LEN);
60 if (not_written != 0) {
61 printf("write failed %ld %d\n", (long) not_written, sys_semihost_errno());
62 code = 2;
63 goto bail1;
64 }
65 ret = sys_semihost_close(fd);
66 fd = -1;
67 if (ret != 0) {
68 printf("close failed %d %d\n", ret, sys_semihost_errno());
69 code = 3;
70 goto bail1;
71 }
72 fd = sys_semihost_open(TEST_FILE_NAME, SH_OPEN_R);
73 if (fd < 0) {
74 printf("open %s failed\n", TEST_FILE_NAME);
75 code = 3;
76 goto bail1;
77 }
78 not_read = sys_semihost_read(fd, buf, sizeof(buf));
79 if (not_read + TEST_STRING_LEN != sizeof(buf)) {
80 printf("read bad result %ld expected %ld\n", (long) not_read, (long) (sizeof(buf) - TEST_STRING_LEN));
81 code = 5;
82 goto bail1;
83 }
84 buf[TEST_STRING_LEN] = '\0';
85 if (memcmp(buf, TEST_STRING, TEST_STRING_LEN) != 0) {
86 printf("read bad contents %s expected %s\n", buf, TEST_STRING);
87 code = 6;
88 goto bail1;
89 }
90 bail1:
91 if (fd >= 0)
92 (void) sys_semihost_close(fd);
93 (void) sys_semihost_remove(TEST_FILE_NAME);
94 exit(code);
95 }
96
