1 /*
2 * Copyright (c) 2013, Google, Inc. All rights reserved
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files
6 * (the "Software"), to deal in the Software without restriction,
7 * including without limitation the rights to use, copy, modify, merge,
8 * publish, distribute, sublicense, and/or sell copies of the Software,
9 * and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24 /* System call table definition
25 * ============================
26 *
27 * The user of this library must:
28 *
29 * - define WITH_SYSCALL_TABLE
30 * - provide a file named syscall_table.h in the include path
31 * - provide DEF_SYSCALL macros in syscall_table.h with
32 * number, name, #args followed by argument type defintions.
33 */
34 #include <compiler.h>
35 #include <debug.h>
36 #include <err.h>
37 #include <kernel/thread.h>
38
sys_undefined(int num)39 long sys_undefined(int num) {
40 dprintf(SPEW, "%p invalid syscall %d requested\n", get_current_thread(),
41 num);
42 return ERR_NOT_SUPPORTED;
43 }
44
45 #ifdef WITH_SYSCALL_TABLE
46
47 /* Generate fake function prototypes */
48 #define DEF_SYSCALL(nr, fn, rtype, nr_args, ...) rtype sys_##fn(void);
49 #include <syscall_table.h>
50 #undef DEF_SYSCALL
51
52 #endif
53
54 #define DEF_SYSCALL(nr, fn, rtype, nr_args, ...) \
55 [(nr)] = (unsigned long)(sys_##fn),
56 const unsigned long syscall_table[] = {
57
58 #ifdef WITH_SYSCALL_TABLE
59 #include <syscall_table.h>
60 #endif
61
62 };
63 #undef DEF_SYSCALL
64
65 unsigned long nr_syscalls = countof(syscall_table);
66