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LibrePilot/flight/pios/common/libraries/msheap/pios_msheap.c
Richard Flay (Hyper) a2d8544931 OP-931: adds -Wextra compiler option for the flight code, and makes the bazillion code changes required
to make the flight code compile again. Needs careful review, particularly all the fixes for the
signed vs unsigned comparisons.

+review OPReview-459
2013-05-05 16:32:24 +09:30

141 lines
3.1 KiB
C

/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*-
* PIOS interface shims for MSHEAP
*
* Copyright 2011 Michael Smith. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "msheap.h"
#include "pios_config.h"
#include "pios.h"
/*
* Symbols exported by the linker script telling us where the heap is.
*/
extern char _sheap;
extern char _eheap;
#if defined(PIOS_INCLUDE_FREERTOS)
/*
* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE prevents task.h from redefining
* all the API functions to use the MPU wrappers. That should only be done when
* task.h is included from an application file.
* */
#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
# include "FreeRTOS.h"
# include "task.h"
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
/*
* Optional callback for allocation failures.
*/
extern void vApplicationMallocFailedHook(void) __attribute__((weak));
void *
pvPortMalloc(size_t s)
{
void *p;
vPortEnterCritical();
p = msheap_alloc(s);
vPortExitCritical();
if (p == NULL && &vApplicationMallocFailedHook != NULL)
vApplicationMallocFailedHook();
return p;
}
void
vPortFree(void *p)
{
vPortEnterCritical();
msheap_free(p);
vPortExitCritical();
}
size_t
xPortGetFreeHeapSize(void)
{
return msheap_free_space();
}
void
vPortInitialiseBlocks(void)
{
msheap_init(&_sheap, &_eheap);
}
void
xPortIncreaseHeapSize(size_t bytes)
{
msheap_extend(bytes);
}
void *
malloc(size_t size)
{
return pvPortMalloc(size);
}
void
free(void *p)
{
return vPortFree(p);
}
#else /* !PIOS_INCLUDE_FREERTOS */
int heap_init_done;
void *
malloc(size_t size)
{
// static
if (!heap_init_done) {
msheap_init(&_sheap, &_eheap);
heap_init_done = 1;
}
return msheap_alloc(size);
}
void
free(void *p)
{
return msheap_free(p);
}
#endif /* PIOS_INCLUDE_FREERTOS */
void
msheap_panic(__attribute__((unused)) const char *reason)
{
//PIOS_DEBUG_Panic(reason);
}