mktplinkfw: add flag to ignore size limit (used for initramfs images)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 45644

diff --git a/src/mktplinkfw.c b/src/mktplinkfw.c
index 4817e58f020e5863f25856afcb65b1af6869be77..80db8f8c2578d5033434aa4a855617f6196433e0 100644 (file)
--- a/src/mktplinkfw.c
+++ b/src/mktplinkfw.c
@@ -148,6 +148,7 @@ static uint32_t rootfs_align;
 static struct file_info boot_info;
 static int combined;
 static int strip_padding;
+static int ignore_size;
 static int add_jffs2_eof;
 static unsigned char jffs2_eof_mark[4] = {0xde, 0xad, 0xc0, 0xde};
 static uint32_t fw_max_len;
@@ -501,6 +502,7 @@ static void usage(int status)
 "  -R <offset>     overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
 "  -o <file>       write output to the file <file>\n"
 "  -s              strip padding from the end of the image\n"
+"  -S              ignore firmware size limit (only for combined images)\n"
 "  -j              add jffs2 end-of-filesystem markers\n"
 "  -N <vendor>     set image vendor to <vendor>\n"
 "  -V <version>    set image version to <version>\n"
@@ -645,8 +647,13 @@ static int check_options(void)
        if (combined) {
                if (kernel_info.file_size >
                    fw_max_len - sizeof(struct fw_header)) {
-                       ERR("kernel image is too big");
-                       return -1;
+                       if (!ignore_size) {
+                               ERR("kernel image is too big");
+                               return -1;
+                       }
+                       layout->fw_max_len = sizeof(struct fw_header) +
+                                            kernel_info.file_size +
+                                            reserved_space;
                }
        } else {
                if (rootfs_info.file_name == NULL) {
@@ -1081,7 +1088,7 @@ int main(int argc, char *argv[])
        while ( 1 ) {
                int c;
 
-               c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xX:hsjv:");
+               c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xX:hsSjv:");
                if (c == -1)
                        break;
 
@@ -1134,6 +1141,9 @@ int main(int argc, char *argv[])
                case 's':
                        strip_padding = 1;
                        break;
+               case 'S':
+                       ignore_size = 1;
+                       break;
                case 'i':
                        inspect_info.file_name = optarg;
                        break;