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Change xPortRaisePrivilege and vPortResetPrivilege to macros

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This prevents non-kernel code from calling these functions.

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
This commit is contained in:
Gaurav Aggarwal 2021-10-06 19:13:48 -07:00
parent 628059b775
commit ba50511821
6 changed files with 337 additions and 233 deletions
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21
portable/IAR/ARM_CM4F_MPU/port.c
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@ -184,17 +184,14 @@ void vPortSVCHandler_C( uint32_t * pulParam );
extern void vPortRestoreContextOfFirstTask( void ) PRIVILEGED_FUNCTION;
/**
* @brief Calls the port specific code to raise the privilege.
*
* @return pdFALSE if privilege was raised, pdTRUE otherwise.
* @brief Enter critical section.
*/
extern BaseType_t xPortRaisePrivilege( void );
void vPortEnterCritical( void ) FREERTOS_SYSTEM_CALL;
/**
* @brief If xRunningPrivileged is not pdTRUE, calls the port specific
* code to reset the privilege, otherwise does nothing.
* @brief Exit from critical section.
*/
extern void vPortResetPrivilege( BaseType_t xRunningPrivileged );
void vPortExitCritical( void ) FREERTOS_SYSTEM_CALL;
/*-----------------------------------------------------------*/
/* Each task maintains its own interrupt status in the critical nesting
@ -445,13 +442,12 @@ void vPortEndScheduler( void )
void vPortEnterCritical( void )
{
BaseType_t xRunningPrivileged = xPortRaisePrivilege();
BaseType_t xRunningPrivileged;
xPortRaisePrivilege( xRunningPrivileged );
portDISABLE_INTERRUPTS();
uxCriticalNesting++;
vPortResetPrivilege( xRunningPrivileged );
/* This is not the interrupt safe version of the enter critical function so
* assert() if it is being called from an interrupt context. Only API
* functions that end in "FromISR" can be used in an interrupt. Only assert if
@ -461,12 +457,15 @@ void vPortEnterCritical( void )
{
configASSERT( ( portNVIC_INT_CTRL_REG & portVECTACTIVE_MASK ) == 0 );
}
vPortResetPrivilege( xRunningPrivileged );
}
/*-----------------------------------------------------------*/
void vPortExitCritical( void )
{
BaseType_t xRunningPrivileged = xPortRaisePrivilege();
BaseType_t xRunningPrivileged;
xPortRaisePrivilege( xRunningPrivileged );
configASSERT( uxCriticalNesting );