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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-07-18 11:53:48 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-07-22 16:46:01 +0200 |
| commit | 05e82bd76b057bf60f8590c5226561538ba9057e (patch) | |
| tree | fd84479c03e705bb5ab414b2364e0b131f6d2eef /cpukit/score | |
| parent | rtems: Error for task variables on SMP (diff) | |
| download | rtems-05e82bd76b057bf60f8590c5226561538ba9057e.tar.bz2 | |
score: Error for non-preemptible tasks on SMP
A common use case for disabled preemption was to ensure mutual exclusion
on single-processor configurations. On SMP this does not work.
To abandon non-preemptible tasks simplifies the scheduler.
Diffstat (limited to 'cpukit/score')
| -rw-r--r-- | cpukit/score/src/threadinitialize.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/cpukit/score/src/threadinitialize.c b/cpukit/score/src/threadinitialize.c index 4c40ae87b8..cc74573def 100644 --- a/cpukit/score/src/threadinitialize.c +++ b/cpukit/score/src/threadinitialize.c @@ -18,6 +18,7 @@ #endif #include <rtems/system.h> +#include <rtems/config.h> #include <rtems/score/apiext.h> #include <rtems/score/context.h> #include <rtems/score/interr.h> @@ -57,6 +58,12 @@ bool _Thread_Initialize( bool extension_status; int i; +#if defined( RTEMS_SMP ) + if ( rtems_configuration_is_smp_enabled() && !is_preemptible ) { + return false; + } +#endif + /* * Initialize the Ada self pointer */ |