diff options
Diffstat (limited to 'product/rcar/src/CMSIS-FreeRTOS/Source/include/stack_macros.h')
| -rw-r--r-- | product/rcar/src/CMSIS-FreeRTOS/Source/include/stack_macros.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/product/rcar/src/CMSIS-FreeRTOS/Source/include/stack_macros.h b/product/rcar/src/CMSIS-FreeRTOS/Source/include/stack_macros.h new file mode 100644 index 00000000..30334846 --- /dev/null +++ b/product/rcar/src/CMSIS-FreeRTOS/Source/include/stack_macros.h @@ -0,0 +1,133 @@ +/* + * FreeRTOS Kernel V10.3.1 + * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * http://www.FreeRTOS.org + * http://aws.amazon.com/freertos + * + * 1 tab == 4 spaces! + */ + +#ifndef STACK_MACROS_H +#define STACK_MACROS_H + +/* + * Call the stack overflow hook function if the stack of the task being swapped + * out is currently overflowed, or looks like it might have overflowed in the + * past. + * + * Setting configCHECK_FOR_STACK_OVERFLOW to 1 will cause the macro to check + * the current stack state only - comparing the current top of stack value to + * the stack limit. Setting configCHECK_FOR_STACK_OVERFLOW to greater than 1 + * will also cause the last few stack bytes to be checked to ensure the value + * to which the bytes were set when the task was created have not been + * overwritten. Note this second test does not guarantee that an overflowed + * stack will always be recognised. + */ + +/*-----------------------------------------------------------*/ + +#if ((configCHECK_FOR_STACK_OVERFLOW == 1) && (portSTACK_GROWTH < 0)) + +/* Only the current stack state is to be checked. */ +# define taskCHECK_FOR_STACK_OVERFLOW() \ + { \ + /* Is the currently saved stack pointer within the stack limit? */ \ + if (pxCurrentTCB->pxTopOfStack <= pxCurrentTCB->pxStack) { \ + vApplicationStackOverflowHook( \ + (TaskHandle_t)pxCurrentTCB, pxCurrentTCB->pcTaskName); \ + } \ + } + +#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */ +/*-----------------------------------------------------------*/ + +#if ((configCHECK_FOR_STACK_OVERFLOW == 1) && (portSTACK_GROWTH > 0)) + +/* Only the current stack state is to be checked. */ +# define taskCHECK_FOR_STACK_OVERFLOW() \ + { \ + /* Is the currently saved stack pointer within the stack limit? */ \ + if (pxCurrentTCB->pxTopOfStack >= pxCurrentTCB->pxEndOfStack) { \ + vApplicationStackOverflowHook( \ + (TaskHandle_t)pxCurrentTCB, pxCurrentTCB->pcTaskName); \ + } \ + } + +#endif /* configCHECK_FOR_STACK_OVERFLOW == 1 */ +/*-----------------------------------------------------------*/ + +#if ((configCHECK_FOR_STACK_OVERFLOW > 1) && (portSTACK_GROWTH < 0)) + +# define taskCHECK_FOR_STACK_OVERFLOW() \ + { \ + const uint32_t *const pulStack = \ + (uint32_t *)pxCurrentTCB->pxStack; \ + const uint32_t ulCheckValue = (uint32_t)0xa5a5a5a5; \ +\ + if ((pulStack[0] != ulCheckValue) || \ + (pulStack[1] != ulCheckValue) || \ + (pulStack[2] != ulCheckValue) || \ + (pulStack[3] != ulCheckValue)) { \ + vApplicationStackOverflowHook( \ + (TaskHandle_t)pxCurrentTCB, pxCurrentTCB->pcTaskName); \ + } \ + } + +#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */ +/*-----------------------------------------------------------*/ + +#if ((configCHECK_FOR_STACK_OVERFLOW > 1) && (portSTACK_GROWTH > 0)) + +# define taskCHECK_FOR_STACK_OVERFLOW() \ + { \ + int8_t *pcEndOfStack = (int8_t *)pxCurrentTCB->pxEndOfStack; \ + static const uint8_t ucExpectedStackBytes[] = { \ + tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \ + tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \ + tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \ + tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \ + tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \ + tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE, \ + tskSTACK_FILL_BYTE, tskSTACK_FILL_BYTE \ + }; \ +\ + pcEndOfStack -= sizeof(ucExpectedStackBytes); \ +\ + /* Has the extremity of the task stack ever been written over? */ \ + if (memcmp( \ + (void *)pcEndOfStack, \ + (void *)ucExpectedStackBytes, \ + sizeof(ucExpectedStackBytes)) != 0) { \ + vApplicationStackOverflowHook( \ + (TaskHandle_t)pxCurrentTCB, pxCurrentTCB->pcTaskName); \ + } \ + } + +#endif /* #if( configCHECK_FOR_STACK_OVERFLOW > 1 ) */ +/*-----------------------------------------------------------*/ + +/* Remove stack overflow macro if not being used. */ +#ifndef taskCHECK_FOR_STACK_OVERFLOW +# define taskCHECK_FOR_STACK_OVERFLOW() +#endif + +#endif /* STACK_MACROS_H */ |