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- This patch makes it possible to set a custom image magic.
- --- a/tools/mkimage.c
- +++ b/tools/mkimage.c
- @@ -25,6 +25,7 @@ static struct image_tool_params params =
- .arch = IH_ARCH_PPC,
- .type = IH_TYPE_KERNEL,
- .comp = IH_COMP_GZIP,
- + .magic = IH_MAGIC,
- .dtc = MKIMAGE_DEFAULT_DTC_OPTIONS,
- .imagename = "",
- .imagename2 = "",
- @@ -88,11 +89,12 @@ static void usage(const char *msg)
- " -q ==> quiet\n",
- params.cmdname);
- fprintf(stderr,
- - " %s [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image\n"
- + " %s [-x] -A arch -O os -T type -C comp -M magic -a addr -e ep -n name -d data_file[:data_file...] image\n"
- " -A ==> set architecture to 'arch'\n"
- " -O ==> set operating system to 'os'\n"
- " -T ==> set image type to 'type'\n"
- " -C ==> set compression type 'comp'\n"
- + " -M ==> set image magic to 'magic'\n"
- " -a ==> set load address to 'addr' (hex)\n"
- " -e ==> set entry point to 'ep' (hex)\n"
- " -n ==> set image name to 'name'\n"
- @@ -163,7 +165,7 @@ static void process_args(int argc, char
- int opt;
-
- while ((opt = getopt(argc, argv,
- - "a:A:b:B:c:C:d:D:e:Ef:FG:k:i:K:ln:N:p:o:O:rR:qstT:vVx")) != -1) {
- + "a:A:b:B:c:C:d:D:e:Ef:FG:k:i:K:lM:n:N:p:o:O:rR:qstT:vVx")) != -1) {
- switch (opt) {
- case 'a':
- params.addr = strtoull(optarg, &ptr, 16);
- @@ -254,6 +256,14 @@ static void process_args(int argc, char
- case 'l':
- params.lflag = 1;
- break;
- + case 'M':
- + params.magic = strtoull(optarg, &ptr, 16);
- + if (*ptr) {
- + fprintf(stderr, "%s: invalid magic %s\n",
- + params.cmdname, optarg);
- + exit(EXIT_FAILURE);
- + }
- + break;
- case 'n':
- params.imagename = optarg;
- break;
- --- a/tools/default_image.c
- +++ b/tools/default_image.c
- @@ -56,7 +56,7 @@ static int image_verify_header(unsigned
- */
- memcpy(hdr, ptr, sizeof(image_header_t));
-
- - if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) {
- + if (be32_to_cpu(hdr->ih_magic) != params->magic) {
- debug("%s: Bad Magic Number: \"%s\" is no valid image\n",
- params->cmdname, params->imagefile);
- return -FDT_ERR_BADMAGIC;
- @@ -120,7 +120,7 @@ static void image_set_header(void *ptr,
- }
-
- /* Build new header */
- - image_set_magic(hdr, IH_MAGIC);
- + image_set_magic(hdr, params->magic);
- image_set_time(hdr, time);
- image_set_size(hdr, imagesize);
- image_set_load(hdr, addr);
- --- a/tools/imagetool.h
- +++ b/tools/imagetool.h
- @@ -59,6 +59,7 @@ struct image_tool_params {
- int arch;
- int type;
- int comp;
- + unsigned int magic;
- char *dtc;
- unsigned int addr;
- unsigned int ep;
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