X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=FreeRTOS%2FSource%2Fportable%2FMemMang%2Fheap_1.c;h=89e86dd769ec7efa12c1356ed129b3573705c091;hb=b15dfacb6026af3b0ba697e5753844923b468d2b;hp=03b728d4466a81ab093ff8e92180fb730ee273d4;hpb=a0c885cd8b40e413c04232b56cea3b388f4c3283;p=freertos diff --git a/FreeRTOS/Source/portable/MemMang/heap_1.c b/FreeRTOS/Source/portable/MemMang/heap_1.c index 03b728d44..89e86dd76 100644 --- a/FreeRTOS/Source/portable/MemMang/heap_1.c +++ b/FreeRTOS/Source/portable/MemMang/heap_1.c @@ -1,67 +1,29 @@ /* - FreeRTOS V8.1.1 - Copyright (C) 2014 Real Time Engineers Ltd. - All rights reserved - - VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. - - *************************************************************************** - * * - * FreeRTOS provides completely free yet professionally developed, * - * robust, strictly quality controlled, supported, and cross * - * platform software that has become a de facto standard. * - * * - * Help yourself get started quickly and support the FreeRTOS * - * project by purchasing a FreeRTOS tutorial book, reference * - * manual, or both from: http://www.FreeRTOS.org/Documentation * - * * - * Thank you! * - * * - *************************************************************************** - - This file is part of the FreeRTOS distribution. - - FreeRTOS is free software; you can redistribute it and/or modify it under - the terms of the GNU General Public License (version 2) as published by the - Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception. - - >>! NOTE: The modification to the GPL is included to allow you to !<< - >>! distribute a combined work that includes FreeRTOS without being !<< - >>! obliged to provide the source code for proprietary components !<< - >>! outside of the FreeRTOS kernel. !<< - - FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY - WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - FOR A PARTICULAR PURPOSE. Full license text is available from the following - link: http://www.freertos.org/a00114.html - - 1 tab == 4 spaces! - - *************************************************************************** - * * - * Having a problem? Start by reading the FAQ "My application does * - * not run, what could be wrong?" * - * * - * http://www.FreeRTOS.org/FAQHelp.html * - * * - *************************************************************************** - - http://www.FreeRTOS.org - Documentation, books, training, latest versions, - license and Real Time Engineers Ltd. contact details. - - http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, - including FreeRTOS+Trace - an indispensable productivity tool, a DOS - compatible FAT file system, and our tiny thread aware UDP/IP stack. - - http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High - Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS - licenses offer ticketed support, indemnification and middleware. - - http://www.SafeRTOS.com - High Integrity Systems also provide a safety - engineered and independently SIL3 certified version for use in safety and - mission critical applications that require provable dependability. - - 1 tab == 4 spaces! -*/ + * FreeRTOS Kernel V10.3.0 + * 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! + */ /* @@ -83,11 +45,23 @@ task.h is included from an application file. */ #undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE +#if( configSUPPORT_DYNAMIC_ALLOCATION == 0 ) + #error This file must not be used if configSUPPORT_DYNAMIC_ALLOCATION is 0 +#endif + /* A few bytes might be lost to byte aligning the heap start address. */ #define configADJUSTED_HEAP_SIZE ( configTOTAL_HEAP_SIZE - portBYTE_ALIGNMENT ) /* Allocate the memory for the heap. */ -static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ]; +#if( configAPPLICATION_ALLOCATED_HEAP == 1 ) + /* The application writer has already defined the array used for the RTOS + heap - probably so it can be placed in a special segment or address. */ + extern uint8_t ucHeap[ configTOTAL_HEAP_SIZE ]; +#else + static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ]; +#endif /* configAPPLICATION_ALLOCATED_HEAP */ + +/* Index into the ucHeap array. */ static size_t xNextFreeByte = ( size_t ) 0; /*-----------------------------------------------------------*/ @@ -98,12 +72,14 @@ void *pvReturn = NULL; static uint8_t *pucAlignedHeap = NULL; /* Ensure that blocks are always aligned to the required number of bytes. */ - #if portBYTE_ALIGNMENT != 1 + #if( portBYTE_ALIGNMENT != 1 ) + { if( xWantedSize & portBYTE_ALIGNMENT_MASK ) { /* Byte alignment required. */ xWantedSize += ( portBYTE_ALIGNMENT - ( xWantedSize & portBYTE_ALIGNMENT_MASK ) ); } + } #endif vTaskSuspendAll(); @@ -111,7 +87,7 @@ static uint8_t *pucAlignedHeap = NULL; if( pucAlignedHeap == NULL ) { /* Ensure the heap starts on a correctly aligned boundary. */ - pucAlignedHeap = ( uint8_t * ) ( ( ( portPOINTER_SIZE_TYPE ) &ucHeap[ portBYTE_ALIGNMENT ] ) & ( ( portPOINTER_SIZE_TYPE ) ~portBYTE_ALIGNMENT_MASK ) ); + pucAlignedHeap = ( uint8_t * ) ( ( ( portPOINTER_SIZE_TYPE ) &ucHeap[ portBYTE_ALIGNMENT ] ) & ( ~( ( portPOINTER_SIZE_TYPE ) portBYTE_ALIGNMENT_MASK ) ) ); } /* Check there is enough room left for the allocation. */