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b168057a | 1 | /* Copyright (C) 2011-2015 Free Software Foundation, Inc. |
63d143a2 CM |
2 | This file is part of the GNU C Library. |
3 | Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
ab84e3ff PE |
16 | License along with the GNU C Library. If not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
63d143a2 CM |
18 | |
19 | /* The kernel header pollutes the namespace with the NR_OPEN symbol | |
20 | and defines LINK_MAX although filesystems have different maxima. A | |
21 | similar thing is true for OPEN_MAX: the limit can be changed at | |
22 | runtime and therefore the macro must not be defined. Remove this | |
23 | after including the header if necessary. */ | |
24 | #ifndef NR_OPEN | |
25 | # define __undef_NR_OPEN | |
26 | #endif | |
27 | #ifndef LINK_MAX | |
28 | # define __undef_LINK_MAX | |
29 | #endif | |
30 | #ifndef OPEN_MAX | |
31 | # define __undef_OPEN_MAX | |
32 | #endif | |
33 | #ifndef ARG_MAX | |
34 | # define __undef_ARG_MAX | |
35 | #endif | |
36 | ||
37 | /* The kernel sources contain a file with all the needed information. */ | |
38 | #include <linux/limits.h> | |
39 | ||
40 | /* Have to remove NR_OPEN? */ | |
41 | #ifdef __undef_NR_OPEN | |
42 | # undef NR_OPEN | |
43 | # undef __undef_NR_OPEN | |
44 | #endif | |
45 | /* Have to remove LINK_MAX? */ | |
46 | #ifdef __undef_LINK_MAX | |
47 | # undef LINK_MAX | |
48 | # undef __undef_LINK_MAX | |
49 | #endif | |
50 | /* Have to remove OPEN_MAX? */ | |
51 | #ifdef __undef_OPEN_MAX | |
52 | # undef OPEN_MAX | |
53 | # undef __undef_OPEN_MAX | |
54 | #endif | |
55 | /* Have to remove ARG_MAX? */ | |
56 | #ifdef __undef_ARG_MAX | |
57 | # undef ARG_MAX | |
58 | # undef __undef_ARG_MAX | |
59 | #endif | |
60 | ||
61 | /* The number of data keys per process. */ | |
62 | #define _POSIX_THREAD_KEYS_MAX 128 | |
63 | /* This is the value this implementation supports. */ | |
64 | #define PTHREAD_KEYS_MAX 1024 | |
65 | ||
66 | /* Controlling the iterations of destructors for thread-specific data. */ | |
67 | #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 | |
68 | /* Number of iterations this implementation does. */ | |
69 | #define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS | |
70 | ||
71 | /* The number of threads per process. */ | |
72 | #define _POSIX_THREAD_THREADS_MAX 64 | |
73 | /* We have no predefined limit on the number of threads. */ | |
74 | #undef PTHREAD_THREADS_MAX | |
75 | ||
76 | /* Maximum amount by which a process can descrease its asynchronous I/O | |
77 | priority level. */ | |
78 | #define AIO_PRIO_DELTA_MAX 20 | |
79 | ||
80 | /* Minimum size for a thread. At least two pages for systems with 64k | |
81 | pages. */ | |
82 | #define PTHREAD_STACK_MIN 131072 | |
83 | ||
84 | /* Maximum number of timer expiration overruns. */ | |
85 | #define DELAYTIMER_MAX 2147483647 | |
86 | ||
87 | /* Maximum tty name length. */ | |
88 | #define TTY_NAME_MAX 32 | |
89 | ||
90 | /* Maximum login name length. This is arbitrary. */ | |
91 | #define LOGIN_NAME_MAX 256 | |
92 | ||
93 | /* Maximum host name length. */ | |
94 | #define HOST_NAME_MAX 64 | |
95 | ||
96 | /* Maximum message queue priority level. */ | |
97 | #define MQ_PRIO_MAX 32768 | |
98 | ||
99 | /* Maximum value the semaphore can have. */ | |
100 | #define SEM_VALUE_MAX (2147483647) |