diff options
Diffstat (limited to 'arch/sparc64/boot/piggyback.c')
-rw-r--r-- | arch/sparc64/boot/piggyback.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/arch/sparc64/boot/piggyback.c b/arch/sparc64/boot/piggyback.c deleted file mode 100644 index de364bfed0b..00000000000 --- a/arch/sparc64/boot/piggyback.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - Simple utility to make a single-image install kernel with initial ramdisk - for Sparc64 tftpbooting without need to set up nfs. - - Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <stdio.h> -#include <string.h> -#include <ctype.h> -#include <errno.h> -#include <fcntl.h> -#include <dirent.h> -#include <unistd.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/stat.h> - -/* Note: run this on an a.out kernel (use elftoaout for it), as PROM looks for a.out image onlly - usage: piggyback vmlinux System.map tail, where tail is gzipped fs of the initial ramdisk */ - -void die(char *str) -{ - perror (str); - exit(1); -} - -int main(int argc,char **argv) -{ - char buffer [1024], *q, *r; - unsigned int i, j, k, start, end, offset; - FILE *map; - struct stat s; - int image, tail; - - if (stat (argv[3], &s) < 0) die (argv[3]); - map = fopen (argv[2], "r"); - if (!map) die(argv[2]); - while (fgets (buffer, 1024, map)) { - if (!strcmp (buffer + 19, "_start\n")) - start = strtoul (buffer + 8, NULL, 16); - else if (!strcmp (buffer + 19, "_end\n")) - end = strtoul (buffer + 8, NULL, 16); - } - fclose (map); - if ((image = open(argv[1],O_RDWR)) < 0) die(argv[1]); - if (read(image,buffer,512) != 512) die(argv[1]); - if (!memcmp (buffer, "\177ELF", 4)) { - unsigned int *p = (unsigned int *)(buffer + *(unsigned int *)(buffer + 28)); - - i = p[1] + *(unsigned int *)(buffer + 24) - p[2]; - if (lseek(image,i,0) < 0) die("lseek"); - if (read(image,buffer,512) != 512) die(argv[1]); - j = 0; - } else if (*(unsigned int *)buffer == 0x01030107) { - i = j = 32; - } else { - fprintf (stderr, "Not ELF nor a.out. Don't blame me.\n"); - exit(1); - } - k = i; - if (j == 32 && buffer[40] == 'H' && buffer[41] == 'd' && buffer[42] == 'r' && buffer[43] == 'S') { - offset = 40 + 10; - } else { - i += ((*(unsigned short *)(buffer + j + 2))<<2) - 512; - if (lseek(image,i,0) < 0) die("lseek"); - if (read(image,buffer,1024) != 1024) die(argv[1]); - for (q = buffer, r = q + 512; q < r; q += 4) { - if (*q == 'H' && q[1] == 'd' && q[2] == 'r' && q[3] == 'S') - break; - } - if (q == r) { - fprintf (stderr, "Couldn't find headers signature in the kernel.\n"); - exit(1); - } - offset = i + (q - buffer) + 10; - } - if (lseek(image, offset, 0) < 0) die ("lseek"); - *(unsigned *)buffer = 0; - *(unsigned *)(buffer + 4) = 0x01000000; - *(unsigned *)(buffer + 8) = ((end + 32 + 8191) & ~8191); - *(unsigned *)(buffer + 12) = s.st_size; - if (write(image,buffer+2,14) != 14) die (argv[1]); - if (lseek(image, 4, 0) < 0) die ("lseek"); - *(unsigned *)buffer = ((end + 32 + 8191) & ~8191) - (start & ~0x3fffffUL) + s.st_size; - *(unsigned *)(buffer + 4) = 0; - *(unsigned *)(buffer + 8) = 0; - if (write(image,buffer,12) != 12) die (argv[1]); - if (lseek(image, k - start + ((end + 32 + 8191) & ~8191), 0) < 0) die ("lseek"); - if ((tail = open(argv[3],O_RDONLY)) < 0) die(argv[3]); - while ((i = read (tail,buffer,1024)) > 0) - if (write(image,buffer,i) != i) die (argv[1]); - if (close(image) < 0) die("close"); - if (close(tail) < 0) die("close"); - return 0; -} |