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author | Ben Wolsieffer <ben.wolsieffer@hefring.com> | 2023-11-02 11:48:25 -0400 |
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committer | Waldemar Brodkorb <wbx@openadk.org> | 2023-11-09 16:48:33 +0100 |
commit | c303df56d32faa47ef163726357ed3ee5d075b88 (patch) | |
tree | d00ee1101dd14b5c1bfbd712765a26d56b777845 /libpthread/nptl/sysdeps/aarch64/pthread_spin_trylock.c | |
parent | 8166707a3350ce1fdaf669fb3836810727379342 (diff) |
libpthread/nptl: make default stack size configurable
Threads currently have 2-4 MiB stacks by default (depending on the
platform). This is fine on MMU platforms, where this stack space is not
actually allocated until it is used, but tends to waste a large amount
of memory on no-MMU platforms.
This patch adds a PTHREADS_STACK_DEFAULT_SIZE Kconfig option that allows
the user to override the default stack size at build time. This allows
the user to select a reasonable default stack size for the software that
runs on their system, and avoids the need to patch every package to add
calls to pthread_attr_setstacksize().
An alternative to this patch would be to change the hardcoded default
stack size on no-MMU platforms, but it is difficult to choose an
appropriate value because the minimum required stack depends on the
software in use. This would also be a breaking change.
Signed-off-by: Ben Wolsieffer <ben.wolsieffer@hefring.com>
Diffstat (limited to 'libpthread/nptl/sysdeps/aarch64/pthread_spin_trylock.c')
0 files changed, 0 insertions, 0 deletions