void bsp_libc_init(
void *heap_begin,
uintptr_t heap_size,
size_t sbrk_amount
)
{
RTEMS_Malloc_Initialize( heap_begin, heap_size, sbrk_amount );
/*
* Init the RTEMS libio facility to provide UNIX-like system
* calls for use by newlib (ie: provide open, close, etc)
* Uses malloc() to get area for the iops, so must be after malloc init
*/
if (rtems_libio_init_helper)
(*rtems_libio_init_helper)();
/*
* Set up for the libc handling.
*/
libc_init();
}
rtems_task Init(
rtems_task_argument argument
)
{
Heap_Control *real_heap;
Heap_Area area;
void *p;
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( 0 );
puts( "No sbrk() amount" );
sbrk_count = 0;
offset = 256;
area.begin = &Malloc_Heap [0];
area.size = offset;
RTEMS_Malloc_Initialize( &area, 1, NULL );
errno = 0;
p = malloc( 256 );
rtems_test_assert( p == NULL );
rtems_test_assert( errno == ENOMEM );
rtems_test_assert( sbrk_count == 0 );
rtems_heap_set_sbrk_amount( 256 );
puts( "Misaligned extend" );
sbrk_count = 0;
offset = 256;
area.begin = &Malloc_Heap [0];
area.size = offset;
RTEMS_Malloc_Initialize( &area, 1, NULL );
p = malloc(1);
rtems_test_assert( p != NULL );
rtems_test_assert( sbrk_count == 0 );
p = malloc(257);
rtems_test_assert( p != NULL );
rtems_test_assert( sbrk_count == 1 );
puts( "Not enough sbrk() space" );
sbrk_count = 0;
offset = 256;
area.begin = &Malloc_Heap [0];
area.size = offset;
RTEMS_Malloc_Initialize( &area, 1, NULL );
errno = 0;
p = malloc( sizeof( Malloc_Heap ) );
rtems_test_assert( p == NULL );
rtems_test_assert( errno == ENOMEM );
rtems_test_assert( sbrk_count == 1 );
puts( "Valid heap extend" );
sbrk_count = 0;
offset = 256;
area.begin = &Malloc_Heap [0];
area.size = offset;
RTEMS_Malloc_Initialize( &area, 1, NULL );
p = malloc( 128 );
rtems_test_assert( p != NULL );
rtems_test_assert( sbrk_count == 0 );
p = malloc( 128 );
rtems_test_assert( p != NULL );
rtems_test_assert( sbrk_count == 1 );
puts( "Invalid heap extend" );
sbrk_count = -1;
offset = 256;
area.begin = &Malloc_Heap [0];
area.size = offset;
RTEMS_Malloc_Initialize( &area, 1, NULL );
errno = 0;
p = malloc( 256 );
rtems_test_assert( p == NULL );
rtems_test_assert( errno == ENOMEM );
rtems_test_assert( sbrk_count == 2 );
/* Restore information on real heap */
malloc_set_heap_pointer( real_heap );
puts( "*** END OF TEST MALLOC 04 ***" );
rtems_test_exit(0);
}
