mktree.c (9cdf083f981b8d37b3212400a359368661385099) mktree.c (f6dfc80554b27da11dbb36ebae166b23ec3aa9ca)
1/*
2 * Makes a tree bootable image for IBM Evaluation boards.
3 * Basically, just take a zImage, skip the ELF header, and stuff
4 * a 32 byte header on the front.
5 *
6 * We use htonl, which is a network macro, to make sure we're doing
7 * The Right Thing on an LE machine. It's non-obvious, but it should
8 * work on anything BSD'ish.

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41int main(int argc, char *argv[])
42{
43 int in_fd, out_fd;
44 int nblks, i;
45 uint cksum, *cp;
46 struct stat st;
47 boot_block_t bt;
48
1/*
2 * Makes a tree bootable image for IBM Evaluation boards.
3 * Basically, just take a zImage, skip the ELF header, and stuff
4 * a 32 byte header on the front.
5 *
6 * We use htonl, which is a network macro, to make sure we're doing
7 * The Right Thing on an LE machine. It's non-obvious, but it should
8 * work on anything BSD'ish.

--- 32 unchanged lines hidden (view full) ---

41int main(int argc, char *argv[])
42{
43 int in_fd, out_fd;
44 int nblks, i;
45 uint cksum, *cp;
46 struct stat st;
47 boot_block_t bt;
48
49 if (argc < 3) {
50 fprintf(stderr, "usage: %s <zImage-file> <boot-image> [entry-point]\n",argv[0]);
49 if (argc < 5) {
50 fprintf(stderr, "usage: %s <zImage-file> <boot-image> <load address> <entry point>\n",argv[0]);
51 exit(1);
52 }
53
54 if (stat(argv[1], &st) < 0) {
55 perror("stat");
56 exit(2);
57 }
58
59 nblks = (st.st_size + IMGBLK) / IMGBLK;
60
61 bt.bb_magic = htonl(0x0052504F);
62
63 /* If we have the optional entry point parameter, use it */
51 exit(1);
52 }
53
54 if (stat(argv[1], &st) < 0) {
55 perror("stat");
56 exit(2);
57 }
58
59 nblks = (st.st_size + IMGBLK) / IMGBLK;
60
61 bt.bb_magic = htonl(0x0052504F);
62
63 /* If we have the optional entry point parameter, use it */
64 if (argc == 4)
65 bt.bb_dest = bt.bb_entry_point = htonl(strtoul(argv[3], NULL, 0));
66 else
67 bt.bb_dest = bt.bb_entry_point = htonl(0x500000);
64 bt.bb_dest = htonl(strtoul(argv[3], NULL, 0));
65 bt.bb_entry_point = htonl(strtoul(argv[4], NULL, 0));
68
69 /* We know these from the linker command.
70 * ...and then move it up into memory a little more so the
71 * relocation can happen.
72 */
73 bt.bb_num_512blocks = htonl(nblks);
74 bt.bb_debug_flag = 0;
75

--- 77 unchanged lines hidden --- 		66
67 /* We know these from the linker command.
68 * ...and then move it up into memory a little more so the
69 * relocation can happen.
70 */
71 bt.bb_num_512blocks = htonl(nblks);
72 bt.bb_debug_flag = 0;
73

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