* MA 02111-1307 USA
*/
+#include <errno.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
# endif
#endif /* CONFIG_ENV_IS_IN_FLASH */
+#if defined(ENV_IS_EMBEDDED) && !defined(CONFIG_BUILD_ENVCRC)
+# define CONFIG_BUILD_ENVCRC 1
+#endif
+
#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
# define ENV_HEADER_SIZE (sizeof(uint32_t) + 1)
#else
extern uint32_t crc32 (uint32_t, const unsigned char *, unsigned int);
-#ifdef ENV_IS_EMBEDDED
+#ifdef CONFIG_BUILD_ENVCRC
extern unsigned int env_size;
extern unsigned char environment;
-#endif /* ENV_IS_EMBEDDED */
+#endif /* CONFIG_BUILD_ENVCRC */
int main (int argc, char **argv)
{
-#ifdef ENV_IS_EMBEDDED
+#ifdef CONFIG_BUILD_ENVCRC
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),