diff options
| -rw-r--r-- | common/image-android.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/common/image-android.c b/common/image-android.c index 59079fc..d946c2f 100644 --- a/common/image-android.c +++ b/common/image-android.c @@ -10,8 +10,29 @@ #include <malloc.h> #include <errno.h> +#define ANDROID_IMAGE_DEFAULT_KERNEL_ADDR 0x10008000 + static char andr_tmp_str[ANDR_BOOT_ARGS_SIZE + 1]; +static ulong android_image_get_kernel_addr(const struct andr_img_hdr *hdr) +{ + /* + * All the Android tools that generate a boot.img use this + * address as the default. + * + * Even though it doesn't really make a lot of sense, and it + * might be valid on some platforms, we treat that adress as + * the default value for this field, and try to execute the + * kernel in place in such a case. + * + * Otherwise, we will return the actual value set by the user. + */ + if (hdr->kernel_addr == ANDROID_IMAGE_DEFAULT_KERNEL_ADDR) + return (ulong)hdr + hdr->page_size; + + return hdr->kernel_addr; +} + /** * android_image_get_kernel() - processes kernel part of Android boot images * @hdr: Pointer to image header, which is at the start @@ -30,6 +51,8 @@ static char andr_tmp_str[ANDR_BOOT_ARGS_SIZE + 1]; int android_image_get_kernel(const struct andr_img_hdr *hdr, int verify, ulong *os_data, ulong *os_len) { + u32 kernel_addr = android_image_get_kernel_addr(hdr); + /* * Not all Android tools use the id field for signing the image with * sha1 (or anything) so we don't check it. It is not obvious that the @@ -41,7 +64,7 @@ int android_image_get_kernel(const struct andr_img_hdr *hdr, int verify, printf("Android's image name: %s\n", andr_tmp_str); printf("Kernel load addr 0x%08x size %u KiB\n", - hdr->kernel_addr, DIV_ROUND_UP(hdr->kernel_size, 1024)); + kernel_addr, DIV_ROUND_UP(hdr->kernel_size, 1024)); int len = 0; if (*hdr->cmdline) { @@ -101,7 +124,7 @@ ulong android_image_get_end(const struct andr_img_hdr *hdr) ulong android_image_get_kload(const struct andr_img_hdr *hdr) { - return hdr->kernel_addr; + return android_image_get_kernel_addr(hdr); } int android_image_get_ramdisk(const struct andr_img_hdr *hdr, |