81 lines
2.6 KiB
Diff
81 lines
2.6 KiB
Diff
This patch makes it possible to set a custom image magic.
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--- a/tools/mkimage.c
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+++ b/tools/mkimage.c
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@@ -26,6 +26,7 @@ static struct image_tool_params params =
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.arch = IH_ARCH_PPC,
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.type = IH_TYPE_KERNEL,
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.comp = IH_COMP_GZIP,
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+ .magic = IH_MAGIC,
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.dtc = MKIMAGE_DEFAULT_DTC_OPTIONS,
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.imagename = "",
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.imagename2 = "",
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@@ -89,11 +90,12 @@ static void usage(const char *msg)
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" -q ==> quiet\n",
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params.cmdname);
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fprintf(stderr,
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- " %s [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image\n"
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+ " %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"
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" -A ==> set architecture to 'arch'\n"
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" -O ==> set operating system to 'os'\n"
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" -T ==> set image type to 'type'\n"
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" -C ==> set compression type 'comp'\n"
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+ " -M ==> set image magic to 'magic'\n"
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" -a ==> set load address to 'addr' (hex)\n"
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" -e ==> set entry point to 'ep' (hex)\n"
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" -n ==> set image name to 'name'\n"
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@@ -160,7 +162,7 @@ static int add_content(int type, const c
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}
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static const char optstring[] =
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- "a:A:b:B:c:C:d:D:e:Ef:Fg:G:i:k:K:ln:N:o:O:p:qrR:stT:vVx";
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+ "a:A:b:B:c:C:d:D:e:Ef:Fg:G:i:k:K:lM:n:N:o:O:p:qrR:stT:vVx";
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static const struct option longopts[] = {
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{ "load-address", required_argument, NULL, 'a' },
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@@ -303,6 +305,14 @@ static void process_args(int argc, char
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case 'l':
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params.lflag = 1;
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break;
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+ case 'M':
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+ params.magic = strtoull(optarg, &ptr, 16);
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+ if (*ptr) {
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+ fprintf(stderr, "%s: invalid magic %s\n",
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+ params.cmdname, optarg);
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+ exit(EXIT_FAILURE);
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+ }
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+ break;
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case 'n':
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params.imagename = optarg;
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break;
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--- a/tools/default_image.c
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+++ b/tools/default_image.c
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@@ -67,7 +67,7 @@ static int image_verify_header(unsigned
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*/
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memcpy(hdr, ptr, sizeof(struct legacy_img_hdr));
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- if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) {
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+ if (be32_to_cpu(hdr->ih_magic) != params->magic) {
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debug("%s: Bad Magic Number: \"%s\" is no valid image\n",
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params->cmdname, params->imagefile);
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return -FDT_ERR_BADMAGIC;
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@@ -146,7 +146,7 @@ static void image_set_header(void *ptr,
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}
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/* Build new header */
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- image_set_magic(hdr, IH_MAGIC);
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+ image_set_magic(hdr, params->magic);
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image_set_time(hdr, time);
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image_set_size(hdr, imagesize);
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image_set_load(hdr, addr);
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--- a/tools/imagetool.h
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+++ b/tools/imagetool.h
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@@ -67,6 +67,7 @@ struct image_tool_params {
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int arch;
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int type;
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int comp;
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+ unsigned int magic;
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char *dtc;
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unsigned int addr;
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unsigned int ep;
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