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/*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tmacros.h>
#include "test_support.h"
#include <rtems/libcsupport.h>
#include <rtems/malloc.h>
#include <errno.h>
/* configuration information */
/* At top of file to have access to configuration variables */
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
/* end of configuration */
#ifndef CONFIGURE_MALLOC_BSP_SUPPORTS_SBRK
void *rtems_heap_null_extend(
Heap_Control *heap,
size_t alloc_size
)
{
return rtems_heap_extend_via_sbrk( heap, alloc_size );
}
#endif
char Malloc_Heap[ 128 ] CPU_STRUCTURE_ALIGNMENT;
int sbrk_count;
Heap_Control TempHeap;
size_t offset;
void * sbrk(ptrdiff_t incr)
{
void *p = (void *) -1;
printf( "sbrk(%td)\n", incr );
if ( sbrk_count == -1 ) {
p = (void *) (NULL - 2);
} else if ( offset + incr < sizeof(Malloc_Heap) ) {
p = &Malloc_Heap[ offset ];
offset += incr;
} else {
if ( sbrk_count == 0 )
p = (void *) rtems_task_create;
sbrk_count++;
}
sbrk_count++;
return p;
}
void *p1, *p2, *p3, *p4;
rtems_task Init(
rtems_task_argument argument
)
{
Heap_Control *real_heap;
Heap_Area area;
sbrk_count = 0;
offset = 0;
puts( "\n\n*** TEST MALLOC 04 ***" );
/* Safe information on real heap */
real_heap = malloc_get_heap_pointer();
malloc_set_heap_pointer( &TempHeap );
rtems_heap_set_sbrk_amount( 64 );
puts( "Initialize heap with some memory" );
offset = 64;
sbrk_count = 0;
area.begin = &Malloc_Heap [0];
area.size = 64;
RTEMS_Malloc_Initialize( &area, 1, NULL );
p1 = malloc(64);
p2 = malloc(64);
p3 = malloc(48);
p4 = malloc(48);
puts( "Initialize heap with some memory - return address out of heap" );
area.begin = &Malloc_Heap [1];
area.size = 64;
RTEMS_Malloc_Initialize( &area, 1, NULL );
offset = 64;
sbrk_count = -1;
p1 = malloc( 127 );
rtems_test_assert( p1 == (void *) NULL );
rtems_test_assert( errno == ENOMEM );
area.begin = &Malloc_Heap [0];
area.size = 64;
RTEMS_Malloc_Initialize( &area, 1, NULL );
puts( "Initialize heap with some unaligned memory" );
offset = 65;
sbrk_count = 0;
area.begin = &Malloc_Heap [1];
area.size = 64;
RTEMS_Malloc_Initialize( &area, 1, NULL );
p1 = malloc(64);
p2 = malloc(64);
p3 = malloc(48);
/* Restore information on real heap */
malloc_set_heap_pointer( real_heap );
puts( "*** END OF TEST MALLOC 04 ***" );
rtems_test_exit(0);
}
/* end of file */
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