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Change the stack alignment when a task first starts in the CM4F GCC, Tasking and Keil ports.

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This commit is contained in:
Richard Barry 2012-04-16 18:23:32 +00:00
parent 68289d136f
commit 63369b2a97
6 changed files with 20 additions and 6 deletions
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4
Source/portable/GCC/ARM_CM4F/port.c
View File

@ -126,7 +126,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
/* Offset added to account for the way the MCU uses the stack on entry/exit
of interrupts, and to ensure alignment. */
pxTopOfStack -= 2;
pxTopOfStack--;
*pxTopOfStack = portINITIAL_XPSR; /* xPSR */
pxTopOfStack--;
@ -138,7 +138,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
pxTopOfStack -= 5; /* R12, R3, R2 and R1. */
*pxTopOfStack = ( portSTACK_TYPE ) pvParameters; /* R0 */
/* A save method is being used that requiers each task to maintain its
/* A save method is being used that requires each task to maintain its
own exec return value. */
pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN;

5
Source/portable/GCC/ARM_CM4F/portmacro.h
View File

@ -140,6 +140,11 @@ extern void vPortExitCritical( void );
#define portENABLE_INTERRUPTS() portCLEAR_INTERRUPT_MASK()
#define portENTER_CRITICAL() vPortEnterCritical()
#define portEXIT_CRITICAL() vPortExitCritical()
/* There are an uneven number of items on the initial stack, so
portALIGNMENT_ASSERT_pxCurrentTCB() will trigger false positive asserts. */
#define portALIGNMENT_ASSERT_pxCurrentTCB ( void )
/*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */

4
Source/portable/RVDS/ARM_CM4F/port.c
View File

@ -121,7 +121,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
/* Offset added to account for the way the MCU uses the stack on entry/exit
of interrupts, and to ensure alignment. */
pxTopOfStack -= 2;
pxTopOfStack--;
*pxTopOfStack = portINITIAL_XPSR; /* xPSR */
pxTopOfStack--;
@ -133,7 +133,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
pxTopOfStack -= 5; /* R12, R3, R2 and R1. */
*pxTopOfStack = ( portSTACK_TYPE ) pvParameters; /* R0 */
/* A save method is being used that requiers each task to maintain its
/* A save method is being used that requires each task to maintain its
own exec return value. */
pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN;

4
Source/portable/RVDS/ARM_CM4F/portmacro.h
View File

@ -117,6 +117,10 @@ extern void vPortExitCritical( void );
#define portSET_INTERRUPT_MASK_FROM_ISR() 0;vPortSetInterruptMask()
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vPortClearInterruptMask();(void)x
/* There are an uneven number of items on the initial stack, so
portALIGNMENT_ASSERT_pxCurrentTCB() will trigger false positive asserts. */
#define portALIGNMENT_ASSERT_pxCurrentTCB ( void )
/*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */

4
Source/portable/Tasking/ARM_CM4F/port.c
View File

@ -119,7 +119,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
/* Offset added to account for the way the MCU uses the stack on entry/exit
of interrupts, and to ensure alignment. */
pxTopOfStack -= 2;
pxTopOfStack--;
*pxTopOfStack = portINITIAL_XPSR; /* xPSR */
pxTopOfStack--;
@ -131,7 +131,7 @@ portSTACK_TYPE *pxPortInitialiseStack( portSTACK_TYPE *pxTopOfStack, pdTASK_CODE
pxTopOfStack -= 5; /* R12, R3, R2 and R1. */
*pxTopOfStack = ( portSTACK_TYPE ) pvParameters; /* R0 */
/* A save method is being used that requiers each task to maintain its
/* A save method is being used that requires each task to maintain its
own exec return value. */
pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN;

5
Source/portable/Tasking/ARM_CM4F/portmacro.h
View File

@ -128,6 +128,11 @@ extern void vPortExitCritical( void );
#define portENABLE_INTERRUPTS() portCLEAR_INTERRUPT_MASK()
#define portENTER_CRITICAL() vPortEnterCritical()
#define portEXIT_CRITICAL() vPortExitCritical()
/* There are an uneven number of items on the initial stack, so
portALIGNMENT_ASSERT_pxCurrentTCB() will trigger false positive asserts. */
#define portALIGNMENT_ASSERT_pxCurrentTCB ( void )
/*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */