* MA 02111-1307 USA
*/
+#include <errno.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
# if defined(CONFIG_ENV_ADDR_REDUND) && !defined(CONFIG_ENV_SIZE_REDUND)
# define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
# endif
+# if (CONFIG_ENV_ADDR >= CONFIG_SYS_MONITOR_BASE) && \
+ ((CONFIG_ENV_ADDR + CONFIG_ENV_SIZE) <= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN))
+# define ENV_IS_EMBEDDED 1
+# endif
# if defined(CONFIG_ENV_ADDR_REDUND) || defined(CONFIG_ENV_OFFSET_REDUND)
# define CONFIG_SYS_REDUNDAND_ENVIRONMENT 1
# endif
extern uint32_t crc32 (uint32_t, const unsigned char *, unsigned int);
+#ifdef ENV_IS_EMBEDDED
extern unsigned int env_size;
extern unsigned char environment;
+#endif /* ENV_IS_EMBEDDED */
int main (int argc, char **argv)
{
+#ifdef ENV_IS_EMBEDDED
unsigned char pad = 0x00;
uint32_t crc;
unsigned char *envptr = &environment,
}
for (i = start; i != end; i += step)
printf("%c", (crc & (0xFF << (i * 8))) >> (i * 8));
- fwrite(dataptr, 1, datasize, stdout);
+ if (fwrite(dataptr, 1, datasize, stdout) != datasize)
+ fprintf(stderr, "fwrite() failed: %s\n", strerror(errno));
} else {
printf("CRC32 from offset %08X to %08X of environment = %08X\n",
(unsigned int) (dataptr - envptr),
} else {
printf ("0x%08X\n", crc);
}
-
+#else
+ printf ("0\n");
+#endif
return EXIT_SUCCESS;
}