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/*
* COPYRIGHT (c) 1989-2010.
* 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.
*
* $Id$
*/
#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 */
char Malloc_Heap[ 128 ] CPU_STRUCTURE_ALIGNMENT;
int sbrk_count;
Heap_Control Heap_Holder;
Heap_Control TempHeap;
/* Heap variables we need to peek and poke at */
extern size_t RTEMS_Malloc_Sbrk_amount;
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;
}
rtems_task Init(
rtems_task_argument argument
)
{
void *p1, *p2, *p3, *p4;
Heap_Control *TempHeap;
sbrk_count = 0;
offset = 0;
puts( "\n\n*** TEST MALLOC 04 ***" );
/* Safe information on real heap */
TempHeap = malloc_get_heap_pointer();
Heap_Holder = *TempHeap;
rtems_malloc_sbrk_helpers = &rtems_malloc_sbrk_helpers_table;
puts( "Initialize heap with some memory" );
offset = 64;
sbrk_count = 0;
RTEMS_Malloc_Initialize( Malloc_Heap, 64, 64 );
p1 = malloc(64);
p2 = malloc(64);
p3 = malloc(48);
p4 = malloc(48);
puts( "Initialize heap with some memory - return address out of heap" );
RTEMS_Malloc_Initialize( &Malloc_Heap[1], 64, 64 );
offset = 64;
sbrk_count = -1;
p1 = malloc( 127 );
rtems_test_assert( p1 == (void *) NULL );
rtems_test_assert( errno == ENOMEM );
RTEMS_Malloc_Initialize( Malloc_Heap, 64, 64 );
puts( "Initialize heap with some unaligned memory" );
offset = 65;
sbrk_count = 0;
RTEMS_Malloc_Initialize( &Malloc_Heap[1], 64, 64 );
p1 = malloc(64);
p2 = malloc(64);
p3 = malloc(48);
puts( "Initialize heap with no memory (sbrk aligned)" );
offset = 7;
sbrk_count = 0;
RTEMS_Malloc_Initialize( NULL, 0, 64 );
p1 = malloc(64);
p2 = malloc(64);
p3 = malloc(48);
p4 = malloc(48);
puts( "Initialize heap with no memory (sbrk aligned)" );
offset = 0;
sbrk_count = 0;
RTEMS_Malloc_Initialize( NULL, 0, 64 );
p1 = malloc(64);
puts( "Set sbrk amount in heap to 0" );
offset = 0;
sbrk_count = 0;
RTEMS_Malloc_Initialize( NULL, 0, 64 );
RTEMS_Malloc_Sbrk_amount = 0;
p4 = malloc(48);
/* Restore information on real heap */
malloc_set_heap_pointer( TempHeap );
rtems_malloc_sbrk_helpers = NULL;
puts( "*** END OF TEST MALLOC 04 ***" );
rtems_test_exit(0);
}
/* end of file */
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