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Update FreeRTOS port-specific files to V10.3.1

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This updates Cortex-M3 port files to version found in
V10.3.1-kernel-only tag of FreeRTOS-Kernel.

The new upstream release includes memory barriers which are essential
for use with modern optimising compilers. Without those firmware
certainly breaks with -O3 -flto and might be also broken with other
optimisation configurations.

Fixes: d59ec10c4e ("Update FreeRTOS to v10.3.1")
This commit is contained in:
Paul Fertser
2020-06-15 14:32:54 +03:00
parent e66fe461d2
commit 76099406ef
2 changed files with 159 additions and 191 deletions
Download Patch File Download Diff File Expand all files Collapse all files

239
workspace/TS100/Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM3/port.c vendored
View File

@@ -1,71 +1,29 @@
/* /*
FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd. * FreeRTOS Kernel V10.3.1
All rights reserved * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. * Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
This file is part of the FreeRTOS distribution. * the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
FreeRTOS is free software; you can redistribute it and/or modify it under * the Software, and to permit persons to whom the Software is furnished to do so,
the terms of the GNU General Public License (version 2) as published by the * subject to the following conditions:
Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception. *
* The above copyright notice and this permission notice shall be included in all
*************************************************************************** * copies or substantial portions of the Software.
>>! NOTE: The modification to the GPL is included to allow you to !<< *
>>! distribute a combined work that includes FreeRTOS without being !<< * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
>>! obliged to provide the source code for proprietary components !<< * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
>>! outside of the FreeRTOS kernel. !<< * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
*************************************************************************** * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS *
FOR A PARTICULAR PURPOSE. Full license text is available on the following * http://www.FreeRTOS.org
link: http://www.freertos.org/a00114.html * http://aws.amazon.com/freertos
*
*************************************************************************** * 1 tab == 4 spaces!
* * */
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that is more than just the market leader, it *
* is the industry's de facto standard. *
* *
* Help yourself get started quickly while simultaneously helping *
* to support the FreeRTOS project by purchasing a FreeRTOS *
* tutorial book, reference manual, or both: *
* http://www.FreeRTOS.org/Documentation *
* *
***************************************************************************
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
the FAQ page "My application does not run, what could be wrong?". Have you
defined configASSERT()?
http://www.FreeRTOS.org/support - In return for receiving this top quality
embedded software for free we request you assist our global community by
participating in the support forum.
http://www.FreeRTOS.org/training - Investing in training allows your team to
be as productive as possible as early as possible. Now you can receive
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
Ltd, and the world's leading authority on the world's leading RTOS.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and commercial middleware.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
1 tab == 4 spaces!
*/
/*----------------------------------------------------------- /*-----------------------------------------------------------
* Implementation of functions defined in portable.h for the ARM CM3 port. * Implementation of functions defined in portable.h for the ARM CM3 port.
@@ -144,10 +102,6 @@ debugger. */
#define portTASK_RETURN_ADDRESS prvTaskExitError #define portTASK_RETURN_ADDRESS prvTaskExitError
#endif #endif
/* Each task maintains its own interrupt status in the critical nesting
variable. */
static UBaseType_t uxCriticalNesting = 0xaaaaaaaa;
/* /*
* Setup the timer to generate the tick interrupts. The implementation in this * Setup the timer to generate the tick interrupts. The implementation in this
* file is weak to allow application writers to change the timer used to * file is weak to allow application writers to change the timer used to
@@ -174,10 +128,14 @@ static void prvTaskExitError( void );
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* Each task maintains its own interrupt status in the critical nesting
variable. */
static UBaseType_t uxCriticalNesting = 0xaaaaaaaa;
/* /*
* The number of SysTick increments that make up one tick period. * The number of SysTick increments that make up one tick period.
*/ */
#if configUSE_TICKLESS_IDLE == 1 #if( configUSE_TICKLESS_IDLE == 1 )
static uint32_t ulTimerCountsForOneTick = 0; static uint32_t ulTimerCountsForOneTick = 0;
#endif /* configUSE_TICKLESS_IDLE */ #endif /* configUSE_TICKLESS_IDLE */
@@ -185,7 +143,7 @@ static void prvTaskExitError( void );
* The maximum number of tick periods that can be suppressed is limited by the * The maximum number of tick periods that can be suppressed is limited by the
* 24 bit resolution of the SysTick timer. * 24 bit resolution of the SysTick timer.
*/ */
#if configUSE_TICKLESS_IDLE == 1 #if( configUSE_TICKLESS_IDLE == 1 )
static uint32_t xMaximumPossibleSuppressedTicks = 0; static uint32_t xMaximumPossibleSuppressedTicks = 0;
#endif /* configUSE_TICKLESS_IDLE */ #endif /* configUSE_TICKLESS_IDLE */
@@ -193,7 +151,7 @@ static void prvTaskExitError( void );
* Compensate for the CPU cycles that pass while the SysTick is stopped (low * Compensate for the CPU cycles that pass while the SysTick is stopped (low
* power functionality only. * power functionality only.
*/ */
#if configUSE_TICKLESS_IDLE == 1 #if( configUSE_TICKLESS_IDLE == 1 )
static uint32_t ulStoppedTimerCompensation = 0; static uint32_t ulStoppedTimerCompensation = 0;
#endif /* configUSE_TICKLESS_IDLE */ #endif /* configUSE_TICKLESS_IDLE */
@@ -202,7 +160,7 @@ static void prvTaskExitError( void );
* FreeRTOS API functions are not called from interrupts that have been assigned * FreeRTOS API functions are not called from interrupts that have been assigned
* a priority above configMAX_SYSCALL_INTERRUPT_PRIORITY. * a priority above configMAX_SYSCALL_INTERRUPT_PRIORITY.
*/ */
#if ( configASSERT_DEFINED == 1 ) #if( configASSERT_DEFINED == 1 )
static uint8_t ucMaxSysCallPriority = 0; static uint8_t ucMaxSysCallPriority = 0;
static uint32_t ulMaxPRIGROUPValue = 0; static uint32_t ulMaxPRIGROUPValue = 0;
static const volatile uint8_t * const pcInterruptPriorityRegisters = ( const volatile uint8_t * const ) portNVIC_IP_REGISTERS_OFFSET_16; static const volatile uint8_t * const pcInterruptPriorityRegisters = ( const volatile uint8_t * const ) portNVIC_IP_REGISTERS_OFFSET_16;
@@ -233,6 +191,8 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
static void prvTaskExitError( void ) static void prvTaskExitError( void )
{ {
volatile uint32_t ulDummy = 0UL;
/* A function that implements a task must not exit or attempt to return to /* 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 its caller as there is nothing to return to. If a task wants to exit it
should instead call vTaskDelete( NULL ). should instead call vTaskDelete( NULL ).
@@ -241,7 +201,16 @@ static void prvTaskExitError( void )
defined, then stop here so application writers can catch the error. */ defined, then stop here so application writers can catch the error. */
configASSERT( uxCriticalNesting == ~0UL ); configASSERT( uxCriticalNesting == ~0UL );
portDISABLE_INTERRUPTS(); 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. */
}
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@@ -324,6 +293,24 @@ BaseType_t xPortStartScheduler( void )
ucMaxPriorityValue <<= ( uint8_t ) 0x01; ucMaxPriorityValue <<= ( uint8_t ) 0x01;
} }
#ifdef __NVIC_PRIO_BITS
{
/* Check the CMSIS configuration that defines the number of
priority bits matches the number of priority bits actually queried
from the hardware. */
configASSERT( ( portMAX_PRIGROUP_BITS - ulMaxPRIGROUPValue ) == __NVIC_PRIO_BITS );
}
#endif
#ifdef configPRIO_BITS
{
/* Check the FreeRTOS configuration that defines the number of
priority bits matches the number of priority bits actually queried
from the hardware. */
configASSERT( ( portMAX_PRIGROUP_BITS - ulMaxPRIGROUPValue ) == configPRIO_BITS );
}
#endif
/* Shift the priority group value back to its position within the AIRCR /* Shift the priority group value back to its position within the AIRCR
register. */ register. */
ulMaxPRIGROUPValue <<= portPRIGROUP_SHIFT; ulMaxPRIGROUPValue <<= portPRIGROUP_SHIFT;
@@ -352,7 +339,10 @@ BaseType_t xPortStartScheduler( void )
/* Should never get here as the tasks will now be executing! Call the task /* Should never get here as the tasks will now be executing! Call the task
exit error function to prevent compiler warnings about a static function exit error function to prevent compiler warnings about a static function
not being called in the case that the application writer overrides this not being called in the case that the application writer overrides this
functionality by defining configTASK_RETURN_ADDRESS. */ functionality by defining configTASK_RETURN_ADDRESS. Call
vTaskSwitchContext() so link time optimisation does not remove the
symbol. */
vTaskSwitchContext();
prvTaskExitError(); prvTaskExitError();
/* Should not get here! */ /* Should not get here! */
@@ -418,7 +408,7 @@ void xPortPendSVHandler( void )
" mov r0, #0 \n" " mov r0, #0 \n"
" msr basepri, r0 \n" " msr basepri, r0 \n"
" ldmia sp!, {r3, r14} \n" " ldmia sp!, {r3, r14} \n"
" \n" /* Restore the context, including the critical nesting count. */ " \n" /* Restore the context, including the critical nesting count. */
" ldr r1, [r3] \n" " ldr r1, [r3] \n"
" ldr r0, [r1] \n" /* The first item in pxCurrentTCB is the task top of stack. */ " ldr r0, [r1] \n" /* The first item in pxCurrentTCB is the task top of stack. */
" ldmia r0!, {r4-r11} \n" /* Pop the registers. */ " ldmia r0!, {r4-r11} \n" /* Pop the registers. */
@@ -453,11 +443,11 @@ void xPortSysTickHandler( void )
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#if configUSE_TICKLESS_IDLE == 1 #if( configUSE_TICKLESS_IDLE == 1 )
__attribute__((weak)) void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime ) __attribute__((weak)) void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime )
{ {
uint32_t ulReloadValue, ulCompleteTickPeriods, ulCompletedSysTickDecrements, ulSysTickCTRL; uint32_t ulReloadValue, ulCompleteTickPeriods, ulCompletedSysTickDecrements;
TickType_t xModifiableIdleTime; TickType_t xModifiableIdleTime;
/* Make sure the SysTick reload value does not overflow the counter. */ /* Make sure the SysTick reload value does not overflow the counter. */
@@ -483,7 +473,7 @@ void xPortSysTickHandler( void )
/* Enter a critical section but don't use the taskENTER_CRITICAL() /* Enter a critical section but don't use the taskENTER_CRITICAL()
method as that will mask interrupts that should exit sleep mode. */ method as that will mask interrupts that should exit sleep mode. */
__asm volatile( "cpsid i" ); __asm volatile( "cpsid i" ::: "memory" );
__asm volatile( "dsb" ); __asm volatile( "dsb" );
__asm volatile( "isb" ); __asm volatile( "isb" );
@@ -504,7 +494,7 @@ void xPortSysTickHandler( void )
/* Re-enable interrupts - see comments above the cpsid instruction() /* Re-enable interrupts - see comments above the cpsid instruction()
above. */ above. */
__asm volatile( "cpsie i" ); __asm volatile( "cpsie i" ::: "memory" );
} }
else else
{ {
@@ -524,32 +514,50 @@ void xPortSysTickHandler( void )
should not be executed again. However, the original expected idle should not be executed again. However, the original expected idle
time variable must remain unmodified, so a copy is taken. */ time variable must remain unmodified, so a copy is taken. */
xModifiableIdleTime = xExpectedIdleTime; xModifiableIdleTime = xExpectedIdleTime;
configPRE_SLEEP_PROCESSING( &xModifiableIdleTime ); configPRE_SLEEP_PROCESSING( xModifiableIdleTime );
if( xModifiableIdleTime > 0 ) if( xModifiableIdleTime > 0 )
{ {
__asm volatile( "dsb" ); __asm volatile( "dsb" ::: "memory" );
__asm volatile( "wfi" ); __asm volatile( "wfi" );
__asm volatile( "isb" ); __asm volatile( "isb" );
} }
configPOST_SLEEP_PROCESSING( &xExpectedIdleTime ); configPOST_SLEEP_PROCESSING( xExpectedIdleTime );
/* Stop SysTick. Again, the time the SysTick is stopped for is /* Re-enable interrupts to allow the interrupt that brought the MCU
accounted for as best it can be, but using the tickless mode will out of sleep mode to execute immediately. see comments above
inevitably result in some tiny drift of the time maintained by the __disable_interrupt() call above. */
kernel with respect to calendar time. */ __asm volatile( "cpsie i" ::: "memory" );
ulSysTickCTRL = portNVIC_SYSTICK_CTRL_REG; __asm volatile( "dsb" );
portNVIC_SYSTICK_CTRL_REG = ( ulSysTickCTRL & ~portNVIC_SYSTICK_ENABLE_BIT ); __asm volatile( "isb" );
/* Re-enable interrupts - see comments above the cpsid instruction() /* Disable interrupts again because the clock is about to be stopped
above. */ and interrupts that execute while the clock is stopped will increase
__asm volatile( "cpsie i" ); any slippage between the time maintained by the RTOS and calendar
time. */
__asm volatile( "cpsid i" ::: "memory" );
__asm volatile( "dsb" );
__asm volatile( "isb" );
if( ( ulSysTickCTRL & portNVIC_SYSTICK_COUNT_FLAG_BIT ) != 0 ) /* Disable the SysTick clock without reading the
portNVIC_SYSTICK_CTRL_REG register to ensure the
portNVIC_SYSTICK_COUNT_FLAG_BIT is not cleared if it is set. Again,
the time the SysTick is stopped for is accounted for as best it can
be, but using the tickless mode will inevitably result in some tiny
drift of the time maintained by the kernel with respect to calendar
time*/
portNVIC_SYSTICK_CTRL_REG = ( portNVIC_SYSTICK_CLK_BIT | portNVIC_SYSTICK_INT_BIT );
/* Determine if the SysTick clock has already counted to zero and
been set back to the current reload value (the reload back being
correct for the entire expected idle time) or if the SysTick is yet
to count to zero (in which case an interrupt other than the SysTick
must have brought the system out of sleep mode). */
if( ( portNVIC_SYSTICK_CTRL_REG & portNVIC_SYSTICK_COUNT_FLAG_BIT ) != 0 )
{ {
uint32_t ulCalculatedLoadValue; uint32_t ulCalculatedLoadValue;
/* The tick interrupt has already executed, and the SysTick /* The tick interrupt is already pending, and the SysTick count
count reloaded with ulReloadValue. Reset the reloaded with ulReloadValue. Reset the
portNVIC_SYSTICK_LOAD_REG with whatever remains of this tick portNVIC_SYSTICK_LOAD_REG with whatever remains of this tick
period. */ period. */
ulCalculatedLoadValue = ( ulTimerCountsForOneTick - 1UL ) - ( ulReloadValue - portNVIC_SYSTICK_CURRENT_VALUE_REG ); ulCalculatedLoadValue = ( ulTimerCountsForOneTick - 1UL ) - ( ulReloadValue - portNVIC_SYSTICK_CURRENT_VALUE_REG );
@@ -564,11 +572,9 @@ void xPortSysTickHandler( void )
portNVIC_SYSTICK_LOAD_REG = ulCalculatedLoadValue; portNVIC_SYSTICK_LOAD_REG = ulCalculatedLoadValue;
/* The tick interrupt handler will already have pended the tick /* As the pending tick will be processed as soon as this
processing in the kernel. As the pending tick will be function exits, the tick value maintained by the tick is stepped
processed as soon as this function exits, the tick value forward by one less than the time spent waiting. */
maintained by the tick is stepped forward by one less than the
time spent waiting. */
ulCompleteTickPeriods = xExpectedIdleTime - 1UL; ulCompleteTickPeriods = xExpectedIdleTime - 1UL;
} }
else else
@@ -590,21 +596,18 @@ void xPortSysTickHandler( void )
/* Restart SysTick so it runs from portNVIC_SYSTICK_LOAD_REG /* Restart SysTick so it runs from portNVIC_SYSTICK_LOAD_REG
again, then set portNVIC_SYSTICK_LOAD_REG back to its standard again, then set portNVIC_SYSTICK_LOAD_REG back to its standard
value. The critical section is used to ensure the tick interrupt value. */
can only execute once in the case that the reload register is near
zero. */
portNVIC_SYSTICK_CURRENT_VALUE_REG = 0UL; portNVIC_SYSTICK_CURRENT_VALUE_REG = 0UL;
portENTER_CRITICAL(); portNVIC_SYSTICK_CTRL_REG |= portNVIC_SYSTICK_ENABLE_BIT;
{ vTaskStepTick( ulCompleteTickPeriods );
portNVIC_SYSTICK_CTRL_REG |= portNVIC_SYSTICK_ENABLE_BIT; portNVIC_SYSTICK_LOAD_REG = ulTimerCountsForOneTick - 1UL;
vTaskStepTick( ulCompleteTickPeriods );
portNVIC_SYSTICK_LOAD_REG = ulTimerCountsForOneTick - 1UL; /* Exit with interrupts enabled. */
} __asm volatile( "cpsie i" ::: "memory" );
portEXIT_CRITICAL();
} }
} }
#endif /* #if configUSE_TICKLESS_IDLE */ #endif /* configUSE_TICKLESS_IDLE */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
/* /*
@@ -614,7 +617,7 @@ void xPortSysTickHandler( void )
__attribute__(( weak )) void vPortSetupTimerInterrupt( void ) __attribute__(( weak )) void vPortSetupTimerInterrupt( void )
{ {
/* Calculate the constants required to configure the tick interrupt. */ /* Calculate the constants required to configure the tick interrupt. */
#if configUSE_TICKLESS_IDLE == 1 #if( configUSE_TICKLESS_IDLE == 1 )
{ {
ulTimerCountsForOneTick = ( configSYSTICK_CLOCK_HZ / configTICK_RATE_HZ ); ulTimerCountsForOneTick = ( configSYSTICK_CLOCK_HZ / configTICK_RATE_HZ );
xMaximumPossibleSuppressedTicks = portMAX_24_BIT_NUMBER / ulTimerCountsForOneTick; xMaximumPossibleSuppressedTicks = portMAX_24_BIT_NUMBER / ulTimerCountsForOneTick;
@@ -622,6 +625,10 @@ __attribute__(( weak )) void vPortSetupTimerInterrupt( void )
} }
#endif /* configUSE_TICKLESS_IDLE */ #endif /* configUSE_TICKLESS_IDLE */
/* Stop and clear the SysTick. */
portNVIC_SYSTICK_CTRL_REG = 0UL;
portNVIC_SYSTICK_CURRENT_VALUE_REG = 0UL;
/* Configure SysTick to interrupt at the requested rate. */ /* Configure SysTick to interrupt at the requested rate. */
portNVIC_SYSTICK_LOAD_REG = ( configSYSTICK_CLOCK_HZ / configTICK_RATE_HZ ) - 1UL; portNVIC_SYSTICK_LOAD_REG = ( configSYSTICK_CLOCK_HZ / configTICK_RATE_HZ ) - 1UL;
portNVIC_SYSTICK_CTRL_REG = ( portNVIC_SYSTICK_CLK_BIT | portNVIC_SYSTICK_INT_BIT | portNVIC_SYSTICK_ENABLE_BIT ); portNVIC_SYSTICK_CTRL_REG = ( portNVIC_SYSTICK_CLK_BIT | portNVIC_SYSTICK_INT_BIT | portNVIC_SYSTICK_ENABLE_BIT );
@@ -636,7 +643,7 @@ __attribute__(( weak )) void vPortSetupTimerInterrupt( void )
uint8_t ucCurrentPriority; uint8_t ucCurrentPriority;
/* Obtain the number of the currently executing interrupt. */ /* Obtain the number of the currently executing interrupt. */
__asm volatile( "mrs %0, ipsr" : "=r"( ulCurrentInterrupt ) ); __asm volatile( "mrs %0, ipsr" : "=r"( ulCurrentInterrupt ) :: "memory" );
/* Is the interrupt number a user defined interrupt? */ /* Is the interrupt number a user defined interrupt? */
if( ulCurrentInterrupt >= portFIRST_USER_INTERRUPT_NUMBER ) if( ulCurrentInterrupt >= portFIRST_USER_INTERRUPT_NUMBER )
@@ -682,7 +689,7 @@ __attribute__(( weak )) void vPortSetupTimerInterrupt( void )
devices by calling NVIC_SetPriorityGrouping( 0 ); before starting the devices by calling NVIC_SetPriorityGrouping( 0 ); before starting the
scheduler. Note however that some vendor specific peripheral libraries scheduler. Note however that some vendor specific peripheral libraries
assume a non-zero priority group setting, in which cases using a value assume a non-zero priority group setting, in which cases using a value
of zero will result in unpredicable behaviour. */ of zero will result in unpredictable behaviour. */
configASSERT( ( portAIRCR_REG & portPRIORITY_GROUP_MASK ) <= ulMaxPRIGROUPValue ); configASSERT( ( portAIRCR_REG & portPRIORITY_GROUP_MASK ) <= ulMaxPRIGROUPValue );
} }

111
workspace/TS100/Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM3/portmacro.h vendored
View File

@@ -1,71 +1,29 @@
/* /*
FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd. * FreeRTOS Kernel V10.3.1
All rights reserved * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. * Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
This file is part of the FreeRTOS distribution. * the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
FreeRTOS is free software; you can redistribute it and/or modify it under * the Software, and to permit persons to whom the Software is furnished to do so,
the terms of the GNU General Public License (version 2) as published by the * subject to the following conditions:
Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception. *
* The above copyright notice and this permission notice shall be included in all
*************************************************************************** * copies or substantial portions of the Software.
>>! NOTE: The modification to the GPL is included to allow you to !<< *
>>! distribute a combined work that includes FreeRTOS without being !<< * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
>>! obliged to provide the source code for proprietary components !<< * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
>>! outside of the FreeRTOS kernel. !<< * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
*************************************************************************** * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS *
FOR A PARTICULAR PURPOSE. Full license text is available on the following * http://www.FreeRTOS.org
link: http://www.freertos.org/a00114.html * http://aws.amazon.com/freertos
*
*************************************************************************** * 1 tab == 4 spaces!
* * */
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that is more than just the market leader, it *
* is the industry's de facto standard. *
* *
* Help yourself get started quickly while simultaneously helping *
* to support the FreeRTOS project by purchasing a FreeRTOS *
* tutorial book, reference manual, or both: *
* http://www.FreeRTOS.org/Documentation *
* *
***************************************************************************
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
the FAQ page "My application does not run, what could be wrong?". Have you
defined configASSERT()?
http://www.FreeRTOS.org/support - In return for receiving this top quality
embedded software for free we request you assist our global community by
participating in the support forum.
http://www.FreeRTOS.org/training - Investing in training allows your team to
be as productive as possible as early as possible. Now you can receive
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
Ltd, and the world's leading authority on the world's leading RTOS.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and commercial middleware.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
1 tab == 4 spaces!
*/
#ifndef PORTMACRO_H #ifndef PORTMACRO_H
@@ -125,7 +83,7 @@ typedef unsigned long UBaseType_t;
\ \
/* Barriers are normally not required but do ensure the code is completely \ /* Barriers are normally not required but do ensure the code is completely \
within the specified behaviour for the architecture. */ \ within the specified behaviour for the architecture. */ \
__asm volatile( "dsb" ); \ __asm volatile( "dsb" ::: "memory" ); \
__asm volatile( "isb" ); \ __asm volatile( "isb" ); \
} }
@@ -173,7 +131,7 @@ not necessary for to use this port. They are defined so the common demo files
{ {
uint8_t ucReturn; uint8_t ucReturn;
__asm volatile ( "clz %0, %1" : "=r" ( ucReturn ) : "r" ( ulBitmap ) ); __asm volatile ( "clz %0, %1" : "=r" ( ucReturn ) : "r" ( ulBitmap ) : "memory" );
return ucReturn; return ucReturn;
} }
@@ -208,13 +166,15 @@ not necessary for to use this port. They are defined so the common demo files
#define portFORCE_INLINE inline __attribute__(( always_inline)) #define portFORCE_INLINE inline __attribute__(( always_inline))
#endif #endif
/*-----------------------------------------------------------*/
portFORCE_INLINE static BaseType_t xPortIsInsideInterrupt( void ) portFORCE_INLINE static BaseType_t xPortIsInsideInterrupt( void )
{ {
uint32_t ulCurrentInterrupt; uint32_t ulCurrentInterrupt;
BaseType_t xReturn; BaseType_t xReturn;
/* Obtain the number of the currently executing interrupt. */ /* Obtain the number of the currently executing interrupt. */
__asm volatile( "mrs %0, ipsr" : "=r"( ulCurrentInterrupt ) ); __asm volatile( "mrs %0, ipsr" : "=r"( ulCurrentInterrupt ) :: "memory" );
if( ulCurrentInterrupt == 0 ) if( ulCurrentInterrupt == 0 )
{ {
@@ -236,11 +196,11 @@ uint32_t ulNewBASEPRI;
__asm volatile __asm volatile
( (
" mov %0, %1 \n" \ " mov %0, %1 \n" \
" msr basepri, %0 \n" \ " msr basepri, %0 \n" \
" isb \n" \ " isb \n" \
" dsb \n" \ " dsb \n" \
:"=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) :"=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) : "memory"
); );
} }
@@ -253,11 +213,11 @@ uint32_t ulOriginalBASEPRI, ulNewBASEPRI;
__asm volatile __asm volatile
( (
" mrs %0, basepri \n" \ " mrs %0, basepri \n" \
" mov %1, %2 \n" \ " mov %1, %2 \n" \
" msr basepri, %1 \n" \ " msr basepri, %1 \n" \
" isb \n" \ " isb \n" \
" dsb \n" \ " dsb \n" \
:"=r" (ulOriginalBASEPRI), "=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) :"=r" (ulOriginalBASEPRI), "=r" (ulNewBASEPRI) : "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) : "memory"
); );
/* This return will not be reached but is necessary to prevent compiler /* This return will not be reached but is necessary to prevent compiler
@@ -270,11 +230,12 @@ portFORCE_INLINE static void vPortSetBASEPRI( uint32_t ulNewMaskValue )
{ {
__asm volatile __asm volatile
( (
" msr basepri, %0 " :: "r" ( ulNewMaskValue ) " msr basepri, %0 " :: "r" ( ulNewMaskValue ) : "memory"
); );
} }
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
#ifdef __cplusplus #ifdef __cplusplus
} }