mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-09-10 16:17:44 -04:00
cortex-M ports: Clarify hardware-saved exception frame size variable (#1314)
* cortex-M ports: Clarify hardware-saved exception frame size variable - Rename ulStackFrameSize to ulHardwareSavedExceptionFrameSize to reflect the hardware-saved exception frame (8 or 26 words based on FPU/lazy stacking). - Add comments explaining standard vs extended frames. - Apply across Cortex-M ports. - No functional change, improves readability. Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com> Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com> * kernel-checker-script: Modify Arm copyright header regex Arm's copyright header regex is modified with the following: * Accept both single year copyright headers (e.g., "2024") and year range copyright headers (e.g., "2024-2025"). * Accept both single-line copyright header and also multi-line header. * Add the escape backslash to accept only literal dot not any character. Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com> Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com> --------- Signed-off-by: Ahmed Ismail <Ahmed.Ismail@arm.com> Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
This commit is contained in:
Ahmed Ismail
GitHub
parent
ccabdec2f8
commit
44ae6cf61a
27 changed files with 561 additions and 343 deletions
8
.github/scripts/kernel_checker.py
vendored
8
.github/scripts/kernel_checker.py
vendored
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@ -114,6 +114,10 @@ KERNEL_ARM_COLLAB_FILES_PATTERNS = [
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r'.*portable/.*/ARM_CM35*',
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r'.*portable/.*/ARM_CM55*',
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r'.*portable/.*/ARM_CM85*',
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r'.*portable/.*/ARM_CM0*',
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r'.*portable/.*/ARM_CM3_MPU*',
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r'.*portable/.*/ARM_CM4_MPU*',
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r'.*portable/.*/ARM_CM4F_MPU*',
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]
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KERNEL_HEADER = [
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@ -150,8 +154,8 @@ KERNEL_HEADER = [
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FREERTOS_COPYRIGHT_REGEX = r"^(;|#)?( *(\/\*|\*|#|\/\/))? Copyright \(C\) 20\d\d Amazon.com, Inc. or its affiliates. All Rights Reserved\.( \*\/)?$"
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FREERTOS_ARM_COLLAB_COPYRIGHT_REGEX = r"(^(;|#)?( *(\/\*|\*|#|\/\/))? Copyright \(C\) 20\d\d Amazon.com, Inc. or its affiliates. All Rights Reserved\.( \*\/)?$)|" + \
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r"(^(;|#)?( *(\/\*|\*|#|\/\/))? Copyright 20\d\d Arm Limited and/or its affiliates( \*\/)?$)|" + \
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r"(^(;|#)?( *(\/\*|\*|#|\/\/))? <open-source-office@arm.com>( \*\/)?$)"
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r"(^(;|#)?( *(\/\*|\*|#|\/\/))? Copyright 20\d\d(-20\d\d)? Arm Limited and/or its affiliates( +<open-source-office@arm\.com>)?( \*\/)?$)|" + \
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r"(^(;|#)?( *(\/\*|\*|#|\/\/))? <open-source-office@arm\.com>( \*\/)?$)"
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class KernelHeaderChecker(HeaderChecker):
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@ -1,7 +1,7 @@
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/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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* Copyright 2024 Arm Limited and/or its affiliates
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* Copyright 2024-2025 Arm Limited and/or its affiliates
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* <open-source-office@arm.com>
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*
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* SPDX-License-Identifier: MIT
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@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
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xMPU_SETTINGS * pxMpuSettings;
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uint32_t * pulSystemCallStack;
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uint32_t ulStackFrameSize, ulSystemCallLocation, i;
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uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
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#if defined( __ARMCC_VERSION )
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@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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{
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pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
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/* Hardware Saved Stack Frame Size upon Exception entry:
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* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
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* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
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*/
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#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
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{
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if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
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{
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/* Extended frame i.e. FPU in use. */
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ulStackFrameSize = 26;
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ulHardwareSavedExceptionFrameSize = 26;
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__asm volatile (
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" vpush {s0} \n" /* Trigger lazy stacking. */
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" vpop {s0} \n" /* Nullify the affect of the above instruction. */
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@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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else
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{
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/* Standard frame i.e. FPU not in use. */
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ulStackFrameSize = 8;
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ulHardwareSavedExceptionFrameSize = 8;
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}
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}
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#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
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{
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ulStackFrameSize = 8;
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ulHardwareSavedExceptionFrameSize = 8;
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}
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#endif /* configENABLE_FPU || configENABLE_MVE */
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/* Make space on the system call stack for the stack frame. */
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pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
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pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
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/* Copy the stack frame. */
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for( i = 0; i < ulStackFrameSize; i++ )
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for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
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{
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pulSystemCallStack[ i ] = pulTaskStack[ i ];
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}
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@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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/* Remember the location where we should copy the stack frame when we exit from
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* the system call. */
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pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
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pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
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/* Record if the hardware used padding to force the stack pointer
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* to be double word aligned. */
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@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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extern TaskHandle_t pxCurrentTCB;
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xMPU_SETTINGS * pxMpuSettings;
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uint32_t * pulTaskStack;
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uint32_t ulStackFrameSize, ulSystemCallLocation, i;
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uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
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#if defined( __ARMCC_VERSION )
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@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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{
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pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
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/* Hardware Saved Stack Frame Size upon Exception entry:
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* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
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* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
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*/
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#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
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{
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if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
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{
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/* Extended frame i.e. FPU in use. */
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ulStackFrameSize = 26;
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ulHardwareSavedExceptionFrameSize = 26;
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__asm volatile (
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" vpush {s0} \n" /* Trigger lazy stacking. */
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" vpop {s0} \n" /* Nullify the affect of the above instruction. */
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@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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else
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{
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/* Standard frame i.e. FPU not in use. */
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ulStackFrameSize = 8;
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ulHardwareSavedExceptionFrameSize = 8;
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}
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}
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#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
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{
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ulStackFrameSize = 8;
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ulHardwareSavedExceptionFrameSize = 8;
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}
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#endif /* configENABLE_FPU || configENABLE_MVE */
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/* Make space on the task stack for the stack frame. */
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pulTaskStack = pulTaskStack - ulStackFrameSize;
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pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
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/* Copy the stack frame. */
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for( i = 0; i < ulStackFrameSize; i++ )
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for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
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{
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pulTaskStack[ i ] = pulSystemCallStack[ i ];
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}
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@ -1,6 +1,8 @@
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/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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* Copyright 2025 Arm Limited and/or its affiliates
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* <open-source-office@arm.com>
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*
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* SPDX-License-Identifier: MIT
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*
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@ -915,7 +917,10 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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xMPU_SETTINGS * pxMpuSettings;
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uint32_t * pulSystemCallStack;
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uint32_t ulSystemCallLocation, i;
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const uint32_t ulStackFrameSize = 8;
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/* Hardware Saved Stack Frame Size upon Exception entry:
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* Basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
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*/
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const uint32_t ulHardwareSavedExceptionFrameSize = 8;
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#if defined( __ARMCC_VERSION )
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@ -955,10 +960,10 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
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/* Make space on the system call stack for the stack frame. */
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pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
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pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
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/* Copy the stack frame. */
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for( i = 0; i < ulStackFrameSize; i++ )
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for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
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{
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pulSystemCallStack[ i ] = pulTaskStack[ i ];
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}
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@ -981,7 +986,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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/* Remember the location where we should copy the stack frame when we exit from
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* the system call. */
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pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
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pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
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/* Record if the hardware used padding to force the stack pointer
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* to be double word aligned. */
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@ -1036,7 +1041,10 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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xMPU_SETTINGS * pxMpuSettings;
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uint32_t * pulTaskStack;
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uint32_t ulSystemCallLocation, i;
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const uint32_t ulStackFrameSize = 8;
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/* Hardware Saved Stack Frame Size upon Exception entry:
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* Basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
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*/
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const uint32_t ulHardwareSavedExceptionFrameSize = 8;
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#if defined( __ARMCC_VERSION )
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@ -1072,10 +1080,10 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
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/* Make space on the task stack for the stack frame. */
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pulTaskStack = pulTaskStack - ulStackFrameSize;
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pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
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/* Copy the stack frame. */
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for( i = 0; i < ulStackFrameSize; i++ )
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for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
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{
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pulTaskStack[ i ] = pulSystemCallStack[ i ];
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}
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@ -1,7 +1,7 @@
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/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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* Copyright 2024 Arm Limited and/or its affiliates
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* Copyright 2024-2025 Arm Limited and/or its affiliates
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* <open-source-office@arm.com>
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*
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* SPDX-License-Identifier: MIT
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@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
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xMPU_SETTINGS * pxMpuSettings;
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uint32_t * pulSystemCallStack;
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uint32_t ulStackFrameSize, ulSystemCallLocation, i;
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uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
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#if defined( __ARMCC_VERSION )
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@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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{
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pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
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/* Hardware Saved Stack Frame Size upon Exception entry:
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* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
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* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
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*/
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#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
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{
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if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
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{
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/* Extended frame i.e. FPU in use. */
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ulStackFrameSize = 26;
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ulHardwareSavedExceptionFrameSize = 26;
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__asm volatile (
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" vpush {s0} \n" /* Trigger lazy stacking. */
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" vpop {s0} \n" /* Nullify the affect of the above instruction. */
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@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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else
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{
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/* Standard frame i.e. FPU not in use. */
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ulStackFrameSize = 8;
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ulHardwareSavedExceptionFrameSize = 8;
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}
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}
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#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
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{
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ulStackFrameSize = 8;
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ulHardwareSavedExceptionFrameSize = 8;
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}
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#endif /* configENABLE_FPU || configENABLE_MVE */
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/* Make space on the system call stack for the stack frame. */
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pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
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pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
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/* Copy the stack frame. */
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for( i = 0; i < ulStackFrameSize; i++ )
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for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
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{
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pulSystemCallStack[ i ] = pulTaskStack[ i ];
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}
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@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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/* Remember the location where we should copy the stack frame when we exit from
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* the system call. */
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pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
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pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
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/* Record if the hardware used padding to force the stack pointer
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* to be double word aligned. */
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@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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extern TaskHandle_t pxCurrentTCB;
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xMPU_SETTINGS * pxMpuSettings;
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uint32_t * pulTaskStack;
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uint32_t ulStackFrameSize, ulSystemCallLocation, i;
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uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
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#if defined( __ARMCC_VERSION )
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@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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{
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pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
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/* Hardware Saved Stack Frame Size upon Exception entry:
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* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
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* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
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*/
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#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
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{
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if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
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{
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/* Extended frame i.e. FPU in use. */
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ulStackFrameSize = 26;
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ulHardwareSavedExceptionFrameSize = 26;
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__asm volatile (
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" vpush {s0} \n" /* Trigger lazy stacking. */
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" vpop {s0} \n" /* Nullify the affect of the above instruction. */
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@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
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else
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{
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/* Standard frame i.e. FPU not in use. */
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ulStackFrameSize = 8;
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ulHardwareSavedExceptionFrameSize = 8;
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}
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}
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#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
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{
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ulStackFrameSize = 8;
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ulHardwareSavedExceptionFrameSize = 8;
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}
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#endif /* configENABLE_FPU || configENABLE_MVE */
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/* Make space on the task stack for the stack frame. */
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pulTaskStack = pulTaskStack - ulStackFrameSize;
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pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
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/* Copy the stack frame. */
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for( i = 0; i < ulStackFrameSize; i++ )
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for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
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{
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pulTaskStack[ i ] = pulSystemCallStack[ i ];
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}
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@ -1,7 +1,7 @@
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/*
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* FreeRTOS Kernel <DEVELOPMENT BRANCH>
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
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* Copyright 2024 Arm Limited and/or its affiliates
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* Copyright 2024-2025 Arm Limited and/or its affiliates
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* <open-source-office@arm.com>
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*
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* SPDX-License-Identifier: MIT
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@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,8 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
*
|
||||
|
|
@ -484,7 +486,10 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulSystemCallLocation, i;
|
||||
const uint32_t ulStackFrameSize = 8;
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* Basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
*/
|
||||
const uint32_t ulHardwareSavedExceptionFrameSize = 8;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
/* Declaration when these variable are defined in code instead of being
|
||||
|
|
@ -520,10 +525,10 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -541,7 +546,7 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Store the value of the Link Register before the SVC was raised.
|
||||
* It contains the address of the caller of the System Call entry
|
||||
|
|
@ -594,7 +599,10 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulSystemCallLocation, i;
|
||||
const uint32_t ulStackFrameSize = 8;
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* Basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
*/
|
||||
const uint32_t ulHardwareSavedExceptionFrameSize = 8;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
/* Declaration when these variable are defined in code instead of being
|
||||
|
|
@ -626,10 +634,10 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,8 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
*
|
||||
|
|
@ -518,7 +520,7 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
/* Declaration when these variable are defined in code instead of being
|
||||
|
|
@ -553,10 +555,14 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -566,14 +572,14 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -591,7 +597,7 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Store the value of the Link Register before the SVC was raised.
|
||||
* It contains the address of the caller of the System Call entry
|
||||
|
|
@ -644,7 +650,7 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
/* Declaration when these variable are defined in code instead of being
|
||||
|
|
@ -675,10 +681,14 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -688,14 +698,14 @@ void vSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,8 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
*
|
||||
|
|
@ -459,7 +461,7 @@ void vPortSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
/* Declaration when these variable are defined in code instead of being
|
||||
|
|
@ -494,10 +496,14 @@ void vPortSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -507,14 +513,14 @@ void vPortSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -532,7 +538,7 @@ void vPortSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Store the value of the Link Register before the SVC was raised.
|
||||
* It contains the address of the caller of the System Call entry
|
||||
|
|
@ -586,7 +592,7 @@ void vPortSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
/* Declaration when these variable are defined in code instead of being
|
||||
|
|
@ -617,10 +623,14 @@ void vPortSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -630,14 +640,14 @@ void vPortSVCHandler_C( uint32_t * pulParam ) /* PRIVILEGED_FUNCTION */
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2024 Arm Limited and/or its affiliates
|
||||
* Copyright 2024-2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
|
|
@ -1200,7 +1200,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1236,12 +1236,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1251,20 +1255,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -1300,7 +1304,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Record if the hardware used padding to force the stack pointer
|
||||
* to be double word aligned. */
|
||||
|
|
@ -1350,7 +1354,7 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i;
|
||||
|
||||
#if defined( __ARMCC_VERSION )
|
||||
|
||||
|
|
@ -1382,12 +1386,16 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
#if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) )
|
||||
{
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
__asm volatile (
|
||||
" vpush {s0} \n" /* Trigger lazy stacking. */
|
||||
" vpop {s0} \n" /* Nullify the affect of the above instruction. */
|
||||
|
|
@ -1397,20 +1405,20 @@ void vPortSVCHandler_C( uint32_t * pulCallerStackAddress ) /* PRIVILEGED_FUNCTIO
|
|||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
}
|
||||
#else /* if ( ( configENABLE_FPU == 1 ) || ( configENABLE_MVE == 1 ) ) */
|
||||
{
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
#endif /* configENABLE_FPU || configENABLE_MVE */
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,8 @@
|
|||
/*
|
||||
* FreeRTOS Kernel <DEVELOPMENT BRANCH>
|
||||
* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
* Copyright 2025 Arm Limited and/or its affiliates
|
||||
* <open-source-office@arm.com>
|
||||
*
|
||||
* SPDX-License-Identifier: MIT
|
||||
*
|
||||
|
|
@ -474,7 +476,7 @@ void vSVCHandler_C( uint32_t * pulParam )
|
|||
extern UBaseType_t uxSystemCallImplementations[ NUM_SYSTEM_CALLS ];
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulSystemCallStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i, r1;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i, r1;
|
||||
extern uint32_t __syscalls_flash_start__;
|
||||
extern uint32_t __syscalls_flash_end__;
|
||||
|
||||
|
|
@ -500,23 +502,27 @@ void vSVCHandler_C( uint32_t * pulParam )
|
|||
{
|
||||
pulSystemCallStack = pxMpuSettings->xSystemCallStackInfo.pulSystemCallStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
prvTriggerLazyStacking();
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
|
||||
/* Make space on the system call stack for the stack frame. */
|
||||
pulSystemCallStack = pulSystemCallStack - ulStackFrameSize;
|
||||
pulSystemCallStack = pulSystemCallStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulSystemCallStack[ i ] = pulTaskStack[ i ];
|
||||
}
|
||||
|
|
@ -537,7 +543,7 @@ void vSVCHandler_C( uint32_t * pulParam )
|
|||
|
||||
/* Remember the location where we should copy the stack frame when we exit from
|
||||
* the system call. */
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;
|
||||
pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Store the value of the Link Register before the SVC was raised.
|
||||
* It contains the address of the caller of the System Call entry
|
||||
|
|
@ -592,7 +598,7 @@ void vSVCHandler_C( uint32_t * pulParam )
|
|||
extern TaskHandle_t pxCurrentTCB;
|
||||
xMPU_SETTINGS * pxMpuSettings;
|
||||
uint32_t * pulTaskStack;
|
||||
uint32_t ulStackFrameSize, ulSystemCallLocation, i, r1;
|
||||
uint32_t ulHardwareSavedExceptionFrameSize, ulSystemCallLocation, i, r1;
|
||||
extern uint32_t __privileged_functions_start__;
|
||||
extern uint32_t __privileged_functions_end__;
|
||||
|
||||
|
|
@ -614,23 +620,27 @@ void vSVCHandler_C( uint32_t * pulParam )
|
|||
{
|
||||
pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;
|
||||
|
||||
/* Hardware Saved Stack Frame Size upon Exception entry:
|
||||
* - No FPU: basic frame (R0-R3, R12, LR, PC, and xPSR) = 8 words.
|
||||
* - With FPU (lazy stacking): basic frame + S0–S15 + FPSCR + reserved word = 26 words.
|
||||
*/
|
||||
if( ( ulLR & portEXC_RETURN_STACK_FRAME_TYPE_MASK ) == 0UL )
|
||||
{
|
||||
/* Extended frame i.e. FPU in use. */
|
||||
ulStackFrameSize = 26;
|
||||
ulHardwareSavedExceptionFrameSize = 26;
|
||||
prvTriggerLazyStacking();
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Standard frame i.e. FPU not in use. */
|
||||
ulStackFrameSize = 8;
|
||||
ulHardwareSavedExceptionFrameSize = 8;
|
||||
}
|
||||
|
||||
/* Make space on the task stack for the stack frame. */
|
||||
pulTaskStack = pulTaskStack - ulStackFrameSize;
|
||||
pulTaskStack = pulTaskStack - ulHardwareSavedExceptionFrameSize;
|
||||
|
||||
/* Copy the stack frame. */
|
||||
for( i = 0; i < ulStackFrameSize; i++ )
|
||||
for( i = 0; i < ulHardwareSavedExceptionFrameSize; i++ )
|
||||
{
|
||||
pulTaskStack[ i ] = pulSystemCallStack[ i ];
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue