FreeRTOS-Kernel/Source/portable/MemMang/heap_3.c
Richard Barry 0a9c978f18 Changes between V4.5.0 and V4.6.0 released October 28 2007
+ Changed the method used to force a context switch within an ISR for the
	  ARM7/9 GCC ports only.  The portENTER_SWITCHING_ISR() and 
	  portEXIT_SWITCHING_ISR() macros are no longer supported.  This is to 
	  ensure correct behaviour no matter which GCC version is used, with or
	  without the -fomit-frame-pointer option, and at all optimisation levels.
	+ Corrected the prototype for xQueueGenericSend() within queue.h.
2007-10-28 14:42:46 +00:00

83 lines
2.5 KiB
C

/*
FreeRTOS.org V4.6.0 - Copyright (C) 2003-2007 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FreeRTOS.org 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. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FreeRTOS.org; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS.org, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
See http://www.FreeRTOS.org for documentation, latest information, license
and contact details. Please ensure to read the configuration and relevant
port sections of the online documentation.
Also see http://www.SafeRTOS.com for an IEC 61508 compliant version along
with commercial development and support options.
***************************************************************************
*/
/*
* Implementation of pvPortMalloc() and vPortFree() that relies on the
* compilers own malloc() and free() implementations.
*
* This file can only be used if the linker is configured to to generate
* a heap memory area.
*
* See heap_2.c and heap_1.c for alternative implementations, and the memory
* management pages of http://www.FreeRTOS.org for more information.
*/
#include <stdlib.h>
#include "FreeRTOS.h"
#include "task.h"
/*-----------------------------------------------------------*/
void *pvPortMalloc( size_t xWantedSize )
{
void *pvReturn;
vTaskSuspendAll();
{
pvReturn = malloc( xWantedSize );
}
xTaskResumeAll();
return pvReturn;
}
/*-----------------------------------------------------------*/
void vPortFree( void *pv )
{
if( pv )
{
vTaskSuspendAll();
{
free( pv );
}
xTaskResumeAll();
}
}