diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/sparc64/boot |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/sparc64/boot')
-rw-r--r-- | arch/sparc64/boot/Makefile | 34 | ||||
-rw-r--r-- | arch/sparc64/boot/piggyback.c | 109 |
2 files changed, 143 insertions, 0 deletions
diff --git a/arch/sparc64/boot/Makefile b/arch/sparc64/boot/Makefile new file mode 100644 index 00000000000..6968a6da57d --- /dev/null +++ b/arch/sparc64/boot/Makefile | |||
@@ -0,0 +1,34 @@ | |||
1 | # $Id: Makefile,v 1.4 1997/12/15 20:08:56 ecd Exp $ | ||
2 | # Makefile for the Sparc64 boot stuff. | ||
3 | # | ||
4 | # Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | ||
5 | # Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | ||
6 | |||
7 | ROOT_IMG := /usr/src/root.img | ||
8 | ELFTOAOUT := elftoaout | ||
9 | |||
10 | hostprogs-y := piggyback | ||
11 | targets := image tftpboot.img vmlinux.aout | ||
12 | |||
13 | quiet_cmd_elftoaout = ELF2AOUT $@ | ||
14 | cmd_elftoaout = $(ELFTOAOUT) vmlinux -o $@ | ||
15 | quiet_cmd_piggy = PIGGY $@ | ||
16 | cmd_piggy = $(obj)/piggyback $@ System.map $(ROOT_IMG) | ||
17 | quiet_cmd_strip = STRIP $@ | ||
18 | cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start vmlinux -o $@ | ||
19 | |||
20 | |||
21 | # Actual linking | ||
22 | $(obj)/image: vmlinux FORCE | ||
23 | $(call if_changed,strip) | ||
24 | @echo ' kernel: $@ is ready' | ||
25 | |||
26 | $(obj)/tftpboot.img: vmlinux $(obj)/piggyback System.map $(ROOT_IMG) FORCE | ||
27 | $(call if_changed,elftoaout) | ||
28 | $(call if_changed,piggy) | ||
29 | @echo ' kernel: $@ is ready' | ||
30 | |||
31 | $(obj)/vmlinux.aout: vmlinux FORCE | ||
32 | $(call if_changed,elftoaout) | ||
33 | @echo ' kernel: $@ is ready' | ||
34 | |||
diff --git a/arch/sparc64/boot/piggyback.c b/arch/sparc64/boot/piggyback.c new file mode 100644 index 00000000000..36f907408c6 --- /dev/null +++ b/arch/sparc64/boot/piggyback.c | |||
@@ -0,0 +1,109 @@ | |||
1 | /* $Id: piggyback.c,v 1.2 2000/09/19 14:34:39 anton Exp $ | ||
2 | Simple utility to make a single-image install kernel with initial ramdisk | ||
3 | for Sparc64 tftpbooting without need to set up nfs. | ||
4 | |||
5 | Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | ||
6 | |||
7 | This program is free software; you can redistribute it and/or modify | ||
8 | it under the terms of the GNU General Public License as published by | ||
9 | the Free Software Foundation; either version 2 of the License, or | ||
10 | (at your option) any later version. | ||
11 | |||
12 | This program is distributed in the hope that it will be useful, | ||
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | GNU General Public License for more details. | ||
16 | |||
17 | You should have received a copy of the GNU General Public License | ||
18 | along with this program; if not, write to the Free Software | ||
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | ||
20 | |||
21 | #include <stdio.h> | ||
22 | #include <string.h> | ||
23 | #include <ctype.h> | ||
24 | #include <errno.h> | ||
25 | #include <fcntl.h> | ||
26 | #include <dirent.h> | ||
27 | #include <unistd.h> | ||
28 | #include <stdlib.h> | ||
29 | #include <sys/types.h> | ||
30 | #include <sys/stat.h> | ||
31 | |||
32 | /* Note: run this on an a.out kernel (use elftoaout for it), as PROM looks for a.out image onlly | ||
33 | usage: piggyback vmlinux System.map tail, where tail is gzipped fs of the initial ramdisk */ | ||
34 | |||
35 | void die(char *str) | ||
36 | { | ||
37 | perror (str); | ||
38 | exit(1); | ||
39 | } | ||
40 | |||
41 | int main(int argc,char **argv) | ||
42 | { | ||
43 | char buffer [1024], *q, *r; | ||
44 | unsigned int i, j, k, start, end, offset; | ||
45 | FILE *map; | ||
46 | struct stat s; | ||
47 | int image, tail; | ||
48 | |||
49 | if (stat (argv[3], &s) < 0) die (argv[3]); | ||
50 | map = fopen (argv[2], "r"); | ||
51 | if (!map) die(argv[2]); | ||
52 | while (fgets (buffer, 1024, map)) { | ||
53 | if (!strcmp (buffer + 19, "_start\n")) | ||
54 | start = strtoul (buffer + 8, NULL, 16); | ||
55 | else if (!strcmp (buffer + 19, "_end\n")) | ||
56 | end = strtoul (buffer + 8, NULL, 16); | ||
57 | } | ||
58 | fclose (map); | ||
59 | if ((image = open(argv[1],O_RDWR)) < 0) die(argv[1]); | ||
60 | if (read(image,buffer,512) != 512) die(argv[1]); | ||
61 | if (!memcmp (buffer, "\177ELF", 4)) { | ||
62 | unsigned int *p = (unsigned int *)(buffer + *(unsigned int *)(buffer + 28)); | ||
63 | |||
64 | i = p[1] + *(unsigned int *)(buffer + 24) - p[2]; | ||
65 | if (lseek(image,i,0) < 0) die("lseek"); | ||
66 | if (read(image,buffer,512) != 512) die(argv[1]); | ||
67 | j = 0; | ||
68 | } else if (*(unsigned int *)buffer == 0x01030107) { | ||
69 | i = j = 32; | ||
70 | } else { | ||
71 | fprintf (stderr, "Not ELF nor a.out. Don't blame me.\n"); | ||
72 | exit(1); | ||
73 | } | ||
74 | k = i; | ||
75 | if (j == 32 && buffer[40] == 'H' && buffer[41] == 'd' && buffer[42] == 'r' && buffer[43] == 'S') { | ||
76 | offset = 40 + 10; | ||
77 | } else { | ||
78 | i += ((*(unsigned short *)(buffer + j + 2))<<2) - 512; | ||
79 | if (lseek(image,i,0) < 0) die("lseek"); | ||
80 | if (read(image,buffer,1024) != 1024) die(argv[1]); | ||
81 | for (q = buffer, r = q + 512; q < r; q += 4) { | ||
82 | if (*q == 'H' && q[1] == 'd' && q[2] == 'r' && q[3] == 'S') | ||
83 | break; | ||
84 | } | ||
85 | if (q == r) { | ||
86 | fprintf (stderr, "Couldn't find headers signature in the kernel.\n"); | ||
87 | exit(1); | ||
88 | } | ||
89 | offset = i + (q - buffer) + 10; | ||
90 | } | ||
91 | if (lseek(image, offset, 0) < 0) die ("lseek"); | ||
92 | *(unsigned *)buffer = 0; | ||
93 | *(unsigned *)(buffer + 4) = 0x01000000; | ||
94 | *(unsigned *)(buffer + 8) = ((end + 32 + 8191) & ~8191); | ||
95 | *(unsigned *)(buffer + 12) = s.st_size; | ||
96 | if (write(image,buffer+2,14) != 14) die (argv[1]); | ||
97 | if (lseek(image, 4, 0) < 0) die ("lseek"); | ||
98 | *(unsigned *)buffer = ((end + 32 + 8191) & ~8191) - (start & ~0x3fffffUL) + s.st_size; | ||
99 | *(unsigned *)(buffer + 4) = 0; | ||
100 | *(unsigned *)(buffer + 8) = 0; | ||
101 | if (write(image,buffer,12) != 12) die (argv[1]); | ||
102 | if (lseek(image, k - start + ((end + 32 + 8191) & ~8191), 0) < 0) die ("lseek"); | ||
103 | if ((tail = open(argv[3],O_RDONLY)) < 0) die(argv[3]); | ||
104 | while ((i = read (tail,buffer,1024)) > 0) | ||
105 | if (write(image,buffer,i) != i) die (argv[1]); | ||
106 | if (close(image) < 0) die("close"); | ||
107 | if (close(tail) < 0) die("close"); | ||
108 | return 0; | ||
109 | } | ||