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Update demo project for Tensilita - work in progres..

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Add support for POSIX style errno - work in progress.
This commit is contained in:
Richard Barry 2018-08-21 19:37:04 +00:00
parent 78d20e2854
commit 722ca8fb2b
8 changed files with 279 additions and 328 deletions
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24
FreeRTOS/Source/tasks.c
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@ -336,6 +336,10 @@ typedef struct TaskControlBlock_t
uint8_t ucDelayAborted;
#endif
#if( configUSE_POSIX_ERRNO == 1 )
int iTaskErrno;
#endif
} tskTCB;
/* The old tskTCB name is maintained above then typedefed to the new TCB_t name
@ -365,6 +369,12 @@ PRIVILEGED_DATA static List_t xPendingReadyList; /*< Tasks that have been r
#endif
/* Global POSIX errno. Its value is changed upon context switching to match
the errno of the currently running task. */
#if ( configUSE_POSIX_ERRNO == 1 )
int FreeRTOS_errno = 0;
#endif
/* Other file private variables. --------------------------------*/
PRIVILEGED_DATA static volatile UBaseType_t uxCurrentNumberOfTasks = ( UBaseType_t ) 0U;
PRIVILEGED_DATA static volatile TickType_t xTickCount = ( TickType_t ) configINITIAL_TICK_COUNT;
@ -2919,11 +2929,25 @@ void vTaskSwitchContext( void )
/* Check for stack overflow, if configured. */
taskCHECK_FOR_STACK_OVERFLOW();
/* Before the currently running task is switched out, save its errno. */
#if( configUSE_POSIX_ERRNO == 1 )
{
pxCurrentTCB->iTaskErrno = FreeRTOS_errno;
}
#endif
/* Select a new task to run using either the generic C or port
optimised asm code. */
taskSELECT_HIGHEST_PRIORITY_TASK(); /*lint !e9079 void * is used as this macro is used with timers and co-routines too. Alignment is known to be fine as the type of the pointer stored and retrieved is the same. */
traceTASK_SWITCHED_IN();
/* After the new task is switched in, update the global errno. */
#if( configUSE_POSIX_ERRNO == 1 )
{
FreeRTOS_errno = pxCurrentTCB->iTaskErrno;
}
#endif
#if ( configUSE_NEWLIB_REENTRANT == 1 )
{
/* Switch Newlib's _impure_ptr variable to point to the _reent