how to tailor the RTEMS application?

[red-eye at 263.net]

i am using ERC32CCS,i compiler the "hello-world" sample
the exe file without debug information was 115k bytes
it is too big ,how can i make it more small?
has the config using confdefs.h in the "hello-world" already tailor the RTOS to the smallest?
/*
 *  Simple test program -- simplified version of sample test hello.
 */

#define TEST_INIT

#include <bsp.h>

#include <stdio.h>

rtems_task Init(
  rtems_task_argument ignored
)
{
  printf( "\n\n*** HELLO WORLD TEST ***\n" );
  printf( "Hello World\n" );
  printf( "*** END OF HELLO WORLD TEST ***\n" );
  exit( 0 );
}

/* configuration information */

#define CONFIGURE_TEST_NEEDS_CONSOLE_DRIVER

#define CONFIGURE_RTEMS_INIT_TASKS_TABLE

#define CONFIGURE_INIT

#include <confdefs.h>

/* end of file */



is the confdefs.h the only way to tailor RTEMS?
                                                   thaks alot

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