X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=tools%2Fenvcrc.c;h=111d9f62897a4107d66cc884c3b231e4d837531f;hb=65f0d12152cd9930acbefbd79e403e1688522901;hp=5b0f7cd4ec5bb01d7d641d232b2d1c63a90cd92a;hpb=837db3d87f4bfe9261629fb4a1bb433506a3056a;p=u-boot

diff --git a/tools/envcrc.c b/tools/envcrc.c
index 5b0f7cd4ec..111d9f6289 100644
--- a/tools/envcrc.c
+++ b/tools/envcrc.c
@@ -21,6 +21,7 @@
  * MA 02111-1307 USA
  */
 
+#include <errno.h>
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -59,6 +60,11 @@
 # endif
 #endif	/* CONFIG_ENV_IS_IN_FLASH */
 
+#if defined(ENV_IS_EMBEDDED) && !defined(CONFIG_BUILD_ENVCRC)
+# include <environment.h>
+# define CONFIG_BUILD_ENVCRC 1
+#endif
+
 #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
 # define ENV_HEADER_SIZE	(sizeof(uint32_t) + 1)
 #else
@@ -70,17 +76,17 @@
 
 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 */
+extern env_t environment;
+#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,
+	unsigned char *envptr = (unsigned char *)&environment,
 		*dataptr = envptr + ENV_HEADER_SIZE;
 	unsigned int datasize = ENV_SIZE;
 	unsigned int eoe;
@@ -121,7 +127,8 @@ int main (int argc, char **argv)
 			}
 			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),