From mboxrd@z Thu Jan  1 00:00:00 1970
From: Weilong Li <weilongli2000@yahoo.com>
To: ecos-discuss@sources.redhat.com
Subject: [ECOS] open file error
Date: Sat, 07 Jul 2001 17:06:00 -0000
Message-id: <20010708000559.13987.qmail@web14306.mail.yahoo.com>
X-SW-Source: 2001-07/msg00219.html

Hi, I folllowed the instruction on nanoxdemo for ipaq
to install the ROM file system on ipaq. I'm sure it
is installed correctly, and here is what it is
look like:
RedBoot> fis list                                     
                         Name              FLASH addr 
Mem addr    Length      Entry point              
(reserved)        0x50000000  0x50000000  0x00040000 
0x00000000                RedBoot           0x50040000
 0x50040000  0x00040000  0x00000000               
RedBoot config    0x50F80000  0x50F80000  0x00040000 
0x00000000                FIS directory     0x50FC0000
 0x50FC0000  0x00040000  0x00000000               
ROM_DISK          0x50F00000  0x50F00000  0x00080000 
0x00000000               

Here is the program I wrote for testing file system.
#include <pkgconf/system.h>
#include <pkgconf/kernel.h>
#include <pkgconf/libc.h>
# include <pkgconf/io_serial.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <cyg/kernel/kapi.h>            /* All the
kernel specific stuff */
#include <cyg/fileio/fileio.h>
#include <cyg/infra/diag.h>
#include <sys/time.h>

int main(void)
{
   FILE *fp;

   printf("Mount ROM file system\n");
    if (mount("0x50F00000", "/", "romfs") < 0) {
        printf("... failed\n");
    }
  printf("... success.\n");

  fp = fopen ( "/hellodata", "w+");
  if (fp != NULL) {
        // do something
  }
  else {
        perror ("error:");
	return -1; 
 }
  return 0;
}

I used gdb to remote run this program in the RAM of
ipaq, and Here is the result I got:

(gdb) continue
Continuing.
Mount ROM file system
... success.
error:: No such entity

So, it seems ROM file system is mounted correclty,
however I cannot use it. Please tell me what is wrong.

thanks,

Weilong


__________________________________________________
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail
http://personal.mail.yahoo.com/