add ability to handle compressed images to imxtract
imxtract currently can not handle compressed images. This patch adds
handling for bzip2 and zip compression. In both cases, a destination
address has to be specified for extraction.
Signed-off-by: Wolfgang Wegner <w.wegner@astro-kom.de>
diff --git a/common/cmd_ximg.c b/common/cmd_ximg.c
index 5593b2d..3e5fb44 100644
--- a/common/cmd_ximg.c
+++ b/common/cmd_ximg.c
@@ -31,8 +31,17 @@
#include <common.h>
#include <command.h>
#include <image.h>
+#include <watchdog.h>
+#if defined(CONFIG_BZIP2)
+#include <bzlib.h>
+#endif
#include <asm/byteorder.h>
+#ifndef CONFIG_SYS_XIMG_LEN
+/* use 8MByte as default max gunzip size */
+#define CONFIG_SYS_XIMG_LEN 0x800000
+#endif
+
int
do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
@@ -50,6 +59,8 @@
const void *fit_data;
size_t fit_len;
#endif
+ uint unc_len = CONFIG_SYS_XIMG_LEN;
+ uint8_t comp;
verify = getenv_yesno ("verify");
@@ -92,8 +103,10 @@
return 1;
}
- if (image_get_comp (hdr) != IH_COMP_NONE) {
- printf("Wrong Compression Type for %s command\n",
+ comp = image_get_comp (hdr);
+ if ((comp != IH_COMP_NONE) && (argc < 4)) {
+ printf("Must specify load address for %s command "
+ "with compressed image\n",
cmdtp->name);
return 1;
}
@@ -138,9 +151,11 @@
return 1;
}
- if (fit_image_check_comp (fit_hdr, noffset, IH_COMP_NONE)) {
- printf("Wrong Compression Type for %s command\n",
- cmdtp->name);
+ if (fit_image_check_comp (fit_hdr, noffset, IH_COMP_NONE)
+ && (argc < 4)) {
+ printf("Must specify load address for %s command "
+ "with compressed image\n",
+ cmdtp->name);
return 1;
}
@@ -153,11 +168,18 @@
}
/* get subimage data address and length */
- if (fit_image_get_data (fit_hdr, noffset, &fit_data, &fit_len)) {
+ if (fit_image_get_data (fit_hdr, noffset,
+ &fit_data, &fit_len)) {
puts ("Could not find script subimage data\n");
return 1;
}
+ if (fit_image_get_comp (fit_hdr, noffset, &comp)) {
+ puts ("Could not find script subimage "
+ "compression type\n");
+ return 1;
+ }
+
data = (ulong)fit_data;
len = (ulong)fit_len;
break;
@@ -168,7 +190,63 @@
}
if (argc > 3) {
- memcpy((char *) dest, (char *) data, len);
+ switch (comp) {
+ case IH_COMP_NONE:
+#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
+ {
+ size_t l = len;
+ size_t tail;
+ void *to = (void *) dest;
+ void *from = (void *)data;
+
+ printf (" Loading part %d ... ", part);
+
+ while (l > 0) {
+ tail = (l > CHUNKSZ) ? CHUNKSZ : l;
+ WATCHDOG_RESET();
+ memmove (to, from, tail);
+ to += tail;
+ from += tail;
+ l -= tail;
+ }
+ }
+#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
+ printf (" Loading part %d ... ", part);
+ memmove ((char *) dest, (char *)data, len);
+#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
+ break;
+ case IH_COMP_GZIP:
+ printf (" Uncompressing part %d ... ", part);
+ if (gunzip ((void *) dest, unc_len,
+ (uchar *) data, &len) != 0) {
+ puts ("GUNZIP ERROR - image not loaded\n");
+ return 1;
+ }
+ break;
+#if defined(CONFIG_BZIP2)
+ case IH_COMP_BZIP2:
+ printf (" Uncompressing part %d ... ", part);
+ /*
+ * If we've got less than 4 MB of malloc() space,
+ * use slower decompression algorithm which requires
+ * at most 2300 KB of memory.
+ */
+ i = BZ2_bzBuffToBuffDecompress
+ ((char*)ntohl(hdr->ih_load),
+ &unc_len, (char *)data, len,
+ CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
+ if (i != BZ_OK) {
+ printf ("BUNZIP2 ERROR %d - "
+ "image not loaded\n", i);
+ return 1;
+ }
+ break;
+#endif /* CONFIG_BZIP2 */
+ default:
+ printf ("Unimplemented compression type %d\n", comp);
+ return 1;
+ }
+ puts ("OK\n");
}
sprintf(pbuf, "%8lx", data);