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36ada9ee | 1 | /* Set a small stack size, but still large enough for glibc's needs. |
2b778ceb | 2 | Copyright (C) 2019-2021 Free Software Foundation, Inc. |
36ada9ee FW |
3 | This file is part of the GNU C Library. |
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 | |
16 | License along with the GNU C Library; if not, see | |
17 | <https://www.gnu.org/licenses/>. */ | |
18 | ||
02132c0f | 19 | #include <limits.h> |
36ada9ee FW |
20 | #include <pthread.h> |
21 | #include <support/xthread.h> | |
36ada9ee | 22 | |
ecdb06cd AZ |
23 | size_t |
24 | support_small_thread_stack_size (void) | |
36ada9ee FW |
25 | { |
26 | /* Some architectures have too small values for PTHREAD_STACK_MIN | |
27 | which cannot be used for creating threads. Ensure that the stack | |
28 | size is at least 256 KiB. */ | |
02132c0f FW |
29 | size_t stack_size = 256 * 1024; |
30 | #ifdef PTHREAD_STACK_MIN | |
31 | if (stack_size < PTHREAD_STACK_MIN) | |
32 | stack_size = PTHREAD_STACK_MIN; | |
33 | #endif | |
ecdb06cd AZ |
34 | return stack_size; |
35 | } | |
36 | ||
37 | void | |
38 | support_set_small_thread_stack_size (pthread_attr_t *attr) | |
39 | { | |
40 | xpthread_attr_setstacksize (attr, support_small_thread_stack_size ()); | |
36ada9ee | 41 | } |