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Add Source/portable/ARMClang file that directs users to the GCC port if they which to use the ARMClang compiler.

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This commit is contained in:
Richard Barry 2020-01-04 00:14:18 +00:00
parent 881958514b
commit eaf9318df8
3 changed files with 9 additions and 5 deletions
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2
FreeRTOS/Source/portable/ARMClang/Use-the-GCC-ports.txt Normal file
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@ -0,0 +1,2 @@
The FreeRTOS GCC port layer also builds and works with the ARMClang compiler.
To use the ARMClang compiler build the port files from FreeRTOS/Source/portable/GCC.

2
FreeRTOS/Source/portable/GCC/ARM_CM3/portmacro.h
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@ -166,6 +166,8 @@ not necessary for to use this port. They are defined so the common demo files
#define portFORCE_INLINE inline __attribute__(( always_inline))
#endif
/*-----------------------------------------------------------*/
portFORCE_INLINE static BaseType_t xPortIsInsideInterrupt( void )
{
uint32_t ulCurrentInterrupt;

10
FreeRTOS/Source/portable/GCC/RISC-V/port.c
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@ -82,9 +82,9 @@ void vPortSetupTimerInterrupt( void ) __attribute__(( weak ));
/* Used to program the machine timer compare register. */
uint64_t ullNextTime = 0ULL;
const uint64_t *pullNextTime = &ullNextTime;
const size_t uxTimerIncrementsForOneTick = ( size_t ) ( configCPU_CLOCK_HZ / configTICK_RATE_HZ ); /* Assumes increment won't go over 32-bits. */
volatile uint64_t * const pullMachineTimerCompareRegisterBase = ( volatile uint64_t * const ) ( configCLINT_BASE_ADDRESS + 0x4000 );
volatile uint64_t * pullMachineTimerCompareRegister = 0;
const size_t uxTimerIncrementsForOneTick = ( size_t ) ( ( configCPU_CLOCK_HZ ) / ( configTICK_RATE_HZ ) ); /* Assumes increment won't go over 32-bits. */
uint32_t const ullMachineTimerCompareRegisterBase = ( uint64_t const ) ( ( configCLINT_BASE_ADDRESS ) + 0x4000 );
volatile uint64_t * pullMachineTimerCompareRegister = NULL;
/* Set configCHECK_FOR_STACK_OVERFLOW to 3 to add ISR stack checking to task
stack checking. A problem in the ISR stack will trigger an assert, not call the
@ -115,10 +115,10 @@ task stack, not the ISR stack). */
uint32_t ulCurrentTimeHigh, ulCurrentTimeLow;
volatile uint32_t * const pulTimeHigh = ( volatile uint32_t * const ) ( configCLINT_BASE_ADDRESS + 0xBFFC );
volatile uint32_t * const pulTimeLow = ( volatile uint32_t * const ) ( configCLINT_BASE_ADDRESS + 0xBFF8 );
volatile uint32_t ulHartId = 0;
volatile uint32_t ulHartId;
__asm volatile( "csrr %0, mhartid" : "=r"( ulHartId ) );
pullMachineTimerCompareRegister = &( pullMachineTimerCompareRegisterBase[ ulHartId ] );
pullMachineTimerCompareRegister = ( volatile uint64_t * ) ( ullMachineTimerCompareRegisterBase + ( ulHartId * sizeof( uint64_t ) ) );
do
{