len0rd/FreeRTOS-Kernel
1
0
Fork 0
mirror of https://github.com/FreeRTOS/FreeRTOS-Kernel.git synced 2025-08-31 15:38:40 -04:00
Code Issues Projects Releases Packages Wiki Activity

Updates to prevent warnings when compiled with LLVM.

Browse source
This commit is contained in:
Richard Barry 2017-04-10 00:26:22 +00:00
parent 8ca40d80a9
commit 0a7a0a79d6
4 changed files with 79 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

15
FreeRTOS/Source/portable/GCC/ARM_CM3/port.c
View file

@ -233,6 +233,8 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
static void prvTaskExitError( void )
{
volatile uint32_t ulDummy = 0UL;
/* A function that implements a task must not exit or attempt to return to
its caller as there is nothing to return to. If a task wants to exit it
should instead call vTaskDelete( NULL ).
@ -241,7 +243,16 @@ static void prvTaskExitError( void )
defined, then stop here so application writers can catch the error. */
configASSERT( uxCriticalNesting == ~0UL );
portDISABLE_INTERRUPTS();
for( ;; );
while( ulDummy == 0 )
{
/* This file calls prvTaskExitError() after the scheduler has been
started to remove a compiler warning about the function being defined
but never called. ulDummy is used purely to quieten other warnings
about code appearing after this function is called - making ulDummy
volatile makes the compiler think the function could return and
therefore not output an 'unreachable code' warning for code that appears
after it. */
}
}
/*-----------------------------------------------------------*/
@ -373,8 +384,8 @@ BaseType_t xPortStartScheduler( void )
functionality by defining configTASK_RETURN_ADDRESS. Call
vTaskSwitchContext() so link time optimisation does not remove the
symbol. */
prvTaskExitError();
vTaskSwitchContext();
prvTaskExitError();
/* Should not get here! */
return 0;