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1 /*
2 * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
3 * The President and Fellows of Harvard College.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /*
31 * Note: if the assumptions in the constants below are violated by
32 * your system design, please change the values as necessary. Don't
33 * change stuff in the .c files, or disable tests, without consulting
34 * the course staff first.
35 */
36
37 #if defined(__mips__)
38 #define KERN_PTR ((void *)0x80000000) /* addr within kernel */
39 #define INVAL_PTR ((void *)0x40000000) /* addr not part of program */
40 #else
41 #error "Please fix this"
42 #endif
43
44 /*
45 * We assume CLOSED_FD is a legal fd that won't be open when we're running.
46 * CLOSED_FD+1 should also be legal and not open.
47 */
48 #define CLOSED_FD 10
49
50 /* We assume IMPOSSIBLE_FD is a fd that is completely not allowed. */
51 #define IMPOSSIBLE_FD 1234567890
52
53 /* We assume this pid won't exist while we're running. Change as needed. */
54 #define NONEXIST_PID 34000
55
56 /* The symbolic error code for no such process (ESRCH in unix) */
57 #ifdef ESRCH
58 #define NOSUCHPID_ERROR ESRCH
59 #else
60 #define NOSUCHPID_ERROR EINVAL
61 #endif
62
63 /* An arbitrary process exit code that hopefully won't occur by accident */
64 #define MAGIC_STATUS 107
65
66 /* An ioctl that doesn't exist */
67 #define NONEXIST_IOCTL 12345