1 /*
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright © 2023 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 "arc_semihost.h"
37 #include <sys/types.h>
38 #include <sys/stat.h>
39 #include <fcntl.h>
40 #include <unistd.h>
41 #include <string.h>
42 #include <errno.h>
43 #include <stdarg.h>
44
45 struct arc_stat
46 {
47 uint16_t my_dev;
48 uint16_t my___pad1;
49 uint32_t my_ino;
50 uint16_t my_mode;
51 uint16_t my_nlink;
52 uint16_t my_uid;
53 uint16_t my_gid;
54 uint16_t my_rdev;
55 uint16_t my___pad2;
56 uint32_t my_size;
57 uint32_t my_blksize;
58 uint32_t my_blocks;
59 uint32_t my_atime;
60 uint32_t my___unused1;
61 uint32_t my_mtime;
62 uint32_t my___unused2;
63 uint32_t my_ctime;
64 uint32_t my___unused3;
65 uint32_t my___unused4;
66 uint32_t my___unused5;
67 };
68
69 int
stat(const char * pathname,struct stat * restrict statbuf)70 stat(const char *pathname, struct stat *restrict statbuf)
71 {
72 struct arc_stat arc_stat;
73
74 int ret = arc_semihost2(SYS_SEMIHOST_stat, (uintptr_t) pathname, (uintptr_t) &arc_stat);
75 if (ret < 0) {
76 arc_semihost_errno(ENOENT);
77 } else {
78 statbuf->st_dev = arc_stat.my_dev;
79 statbuf->st_ino = arc_stat.my_ino;
80 statbuf->st_mode = arc_stat.my_mode;
81 statbuf->st_nlink = arc_stat.my_nlink;
82 statbuf->st_uid = arc_stat.my_uid;
83 statbuf->st_gid = arc_stat.my_gid;
84 statbuf->st_rdev = arc_stat.my_rdev;
85 statbuf->st_size = arc_stat.my_size;
86 statbuf->st_blksize = arc_stat.my_blksize;
87 statbuf->st_blocks = arc_stat.my_blocks;
88 statbuf->st_atime = arc_stat.my_atime;
89 statbuf->st_mtime = arc_stat.my_mtime;
90 statbuf->st_ctime = arc_stat.my_ctime;
91 }
92 return ret;
93 }
94
