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update IAR CM3 port to avoid including FreeRTOSConfig.h in portasm.s #1222

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update IAR CM3 port to avoid including FreeRTOSConfig.h in portasm.s #1222

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5 changes: 5 additions & 0 deletions portable/IAR/ARM_CM3/port.c
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Original file line number Diff line number Diff line change
Expand Up @@ -137,6 +137,11 @@ extern void vPortSVCHandler( void );
extern void xPortPendSVHandler( void );
/*-----------------------------------------------------------*/

/* store Max Syscall Interrupt Priority to be able to get it
* in portasm.s without included FreeRTOSConfig.h
*/
const uint32_t portConfigMaxSyscallIntPriority = configMAX_SYSCALL_INTERRUPT_PRIORITY;

/* Each task maintains its own interrupt status in the critical nesting
* variable. */
static UBaseType_t uxCriticalNesting = 0xaaaaaaaa;
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4 changes: 2 additions & 2 deletions portable/IAR/ARM_CM3/portasm.s
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Original file line number Diff line number Diff line change
Expand Up @@ -26,13 +26,13 @@
*
*/

#include <FreeRTOSConfig.h>

RSEG CODE:CODE(2)
thumb

EXTERN pxCurrentTCB
EXTERN vTaskSwitchContext
EXTERN portConfigMaxSyscallIntPriority

PUBLIC xPortPendSVHandler
PUBLIC vPortSVCHandler
Expand All @@ -52,7 +52,7 @@ xPortPendSVHandler:
str r0, [r2] /* Save the new top of stack into the first member of the TCB. */

stmdb sp!, {r3, r14}
mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY
ldr r0, =portConfigMaxSyscallIntPriority
msr basepri, r0
dsb
isb
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