Hi,
I have a Cortex-A9 processor based development board with me. I have run
the standalone Hello World Application successfully. I want to add support for
memcpy and memset functions so I have modified the hello_world code and written
basic implementations of memcpy and memset functions. The code gets compiled
and I can see the mem functions code via objdump into the hello_world elf. But
when I try to run the code on the board it hangs after the following message.
Please let me know what I am missing. Even The Basic print statements are not
printed. I have attached the modified hello world code.
/***********************************************************/
Starting application at 0x0C100000 ...
/***********************************************************/
Regards,
Amit.
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, [email protected].
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <exports.h>
DECLARE_GLOBAL_DATA_PTR;
void *my_memset(void * s,int c,size_t count)
{
char *xs = (char *) s;
while (count--)
*xs++ = c;
return s;
}
void *my_memcpy(void * dest,const void *src,size_t count)
{
char *tmp = (char *) dest, *s = (char *) src;
while (count--)
*tmp++ = *s++;
return dest;
}
int hello_world (int argc, char * const argv[])
{
int i;
char sbuff[10] = "amit";
/* Print the ABI version */
app_startup(argv);
printf ("Example expects ABI version %d\n", XF_VERSION);
printf ("Actual U-Boot ABI version %d\n", (int)get_version());
printf ("Hello World\n");
my_memset((void *)sbuff, 'a', 10);
printf ("argc = %d\n", argc);
for (i=0; i<=argc; ++i) {
printf ("argv[%d] = \"%s\"\n",
i,
argv[i] ? argv[i] : "<NULL>");
}
printf ("Hit any key to exit ... ");
while (!tstc())
;
/* consume input */
(void) getc();
printf ("\n\n");
return (0);
}
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