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/* Set a small stack size, but still large enough for glibc's needs.
Copyright (C) 2019-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <limits.h>
#include <pthread.h>
#include <support/xthread.h>
size_t
support_small_thread_stack_size (void)
{
/* Some architectures have too small values for PTHREAD_STACK_MIN
which cannot be used for creating threads. Ensure that the stack
size is at least 256 KiB. */
size_t stack_size = 256 * 1024;
#ifdef PTHREAD_STACK_MIN
if (stack_size < PTHREAD_STACK_MIN)
stack_size = PTHREAD_STACK_MIN;
#endif
return stack_size;
}
void
support_set_small_thread_stack_size (pthread_attr_t *attr)
{
xpthread_attr_setstacksize (attr, support_small_thread_stack_size ());
}
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