diff options
Diffstat (limited to 'nuttx/sched/os_bringup.c')
| -rw-r--r-- | nuttx/sched/os_bringup.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/nuttx/sched/os_bringup.c b/nuttx/sched/os_bringup.c index ec6152891..e0a236bbe 100644 --- a/nuttx/sched/os_bringup.c +++ b/nuttx/sched/os_bringup.c @@ -44,6 +44,7 @@ #include <nuttx/config.h> #include <sched.h> +#include <stdlib.h> #include <debug.h> #include <nuttx/init.h> @@ -129,6 +130,17 @@ int os_bringup(void) #endif int init_taskid; + /* Setup up the initial environment for the idle task. At present, this + * may consist of only the initial PATH variable. The PATH variable is + * (probably) not used by the IDLE task. However, the environment + * containing the PATH variable will be inherited by all of the threads + * created by the IDLE task. + */ + +#if !defined(CONFIG_DISABLE_ENVIRON) && defined(CONFIG_PATH_INITIAL) + (void)setenv("PATH", CONFIG_PATH_INITIAL, 1); +#endif + /* Start the page fill worker kernel thread that will resolve page faults. * This should always be the first thread started because it may have to * resolve page faults in other threads @@ -190,5 +202,12 @@ int os_bringup(void) (main_t)CONFIG_USER_ENTRYPOINT, (const char **)NULL); #endif ASSERT(init_taskid != ERROR); + + /* We an save a few bytes by discarding the IDLE thread's environment. */ + +#if !defined(CONFIG_DISABLE_ENVIRON) && defined(CONFIG_PATH_INITIAL) + (void)clearenv(); +#endif + return OK; } |