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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2008-06-13 15:06:32 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2008-06-13 15:06:32 +0000 |
| commit | ecf0f4c4c18956576aeb69372b93910af7ca37e9 (patch) | |
| tree | bdc81902ff221b497c67e31822a08dbd69b69a40 /cpukit/posix/src/pthreadcreate.c | |
| parent | 2008-06-10 Chris Johns <chrisj@rtems.org> (diff) | |
| download | rtems-ecf0f4c4c18956576aeb69372b93910af7ca37e9.tar.bz2 | |
2008-06-13 Joel Sherrill <joel.sherrill@oarcorp.com>
* posix/include/rtems/posix/pthread.h, posix/src/pthread.c,
posix/src/pthreadcreate.c, rtems/include/rtems.h, rtems/src/attr.c,
sapi/include/confdefs.h, sapi/include/rtems/config.h,
score/inline/rtems/score/stack.inl, score/src/isr.c,
score/src/mpci.c, score/src/threadcreateidle.c,
score/src/threadinitialize.c, score/src/threadstackallocate.c: Add
ability for application to configure minimum stack size. Add
RTEMS_CONFIGURED_MINIMUM_STACK_SIZE constant so user can clearly
indicate they want the configured as opposed to the recommended
minimum stack size.
Diffstat (limited to 'cpukit/posix/src/pthreadcreate.c')
| -rw-r--r-- | cpukit/posix/src/pthreadcreate.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/cpukit/posix/src/pthreadcreate.c b/cpukit/posix/src/pthreadcreate.c index 6eeda2da14..c579fb3e14 100644 --- a/cpukit/posix/src/pthreadcreate.c +++ b/cpukit/posix/src/pthreadcreate.c @@ -26,6 +26,16 @@ #include <rtems/posix/time.h> #include <rtems/score/apimutex.h> +static inline size_t _POSIX_Threads_Ensure_minimum_stack ( + size_t size +) +{ + if ( size >= PTHREAD_MINIMUM_STACK_SIZE ) + return size; + return PTHREAD_MINIMUM_STACK_SIZE; +} + + int pthread_create( pthread_t *thread, const pthread_attr_t *attr, @@ -54,11 +64,13 @@ int pthread_create( return EINVAL; /* - * Core Thread Initialize insures we get the minimum amount of + * Core Thread Initialize ensures we get the minimum amount of * stack space if it is allowed to allocate it itself. + * + * NOTE: If the user provides the stack we will let it drop below + * twice the minimum. */ - - if ( the_attr->stackaddr && !_Stack_Is_enough( the_attr->stacksize ) ) + if ( the_attr->stackaddr && !_Stack_Is_enough(the_attr->stacksize) ) return EINVAL; #if 0 @@ -184,7 +196,7 @@ int pthread_create( &_POSIX_Threads_Information, the_thread, the_attr->stackaddr, - the_attr->stacksize, + _POSIX_Threads_Ensure_minimum_stack(the_attr->stacksize), is_fp, core_priority, TRUE, /* preemptible */ |