diff options
Diffstat (limited to 'arch/sparc/boot/piggyback.c')
-rw-r--r-- | arch/sparc/boot/piggyback.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/arch/sparc/boot/piggyback.c b/arch/sparc/boot/piggyback.c deleted file mode 100644 index c9f500c1a8b2..000000000000 --- a/arch/sparc/boot/piggyback.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - Simple utility to make a single-image install kernel with initial ramdisk - for Sparc tftpbooting without need to set up nfs. - - Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - Pete Zaitcev <zaitcev@yahoo.com> endian fixes for cross-compiles, 2000. - - 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 only. - */ - -unsigned short ld2(char *p) -{ - return (p[0] << 8) | p[1]; -} - -unsigned int ld4(char *p) -{ - return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; -} - -void st4(char *p, unsigned int x) -{ - p[0] = x >> 24; - p[1] = x >> 16; - p[2] = x >> 8; - p[3] = x; -} - -void usage(void) -{ - /* fs_img.gz is an image of initial ramdisk. */ - fprintf(stderr, "Usage: piggyback vmlinux.aout System.map fs_img.gz\n"); - fprintf(stderr, "\tKernel image will be modified in place.\n"); - exit(1); -} - -void die(char *str) -{ - perror (str); - exit(1); -} - -int main(int argc,char **argv) -{ - static char aout_magic[] = { 0x01, 0x03, 0x01, 0x07 }; - unsigned char buffer[1024], *q, *r; - unsigned int i, j, k, start, end, offset; - FILE *map; - struct stat s; - int image, tail; - - if (argc != 4) usage(); - start = end = 0; - 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 + 8, " T start\n") || !strcmp (buffer + 16, " T start\n")) - start = strtoul (buffer, NULL, 16); - else if (!strcmp (buffer + 8, " A end\n") || !strcmp (buffer + 16, " A end\n")) - end = strtoul (buffer, NULL, 16); - } - fclose (map); - if (!start || !end) { - fprintf (stderr, "Could not determine start and end from System.map\n"); - exit(1); - } - 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) == 0) { - q = buffer + ld4(buffer + 28); - i = ld4(q + 4) + ld4(buffer + 24) - ld4(q + 8); - if (lseek(image,i,0) < 0) die("lseek"); - if (read(image,buffer,512) != 512) die(argv[1]); - j = 0; - } else if (memcmp(buffer, aout_magic, 4) == 0) { - i = j = 32; - } else { - fprintf (stderr, "Not ELF nor a.out. Don't blame me.\n"); - exit(1); - } - k = i; - i += (ld2(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"); - - st4(buffer, 0); - st4(buffer + 4, 0x01000000); - st4(buffer + 8, (end + 32 + 4095) & ~4095); - st4(buffer + 12, s.st_size); - - if (write(image,buffer+2,14) != 14) die (argv[1]); - if (lseek(image, k - start + ((end + 32 + 4095) & ~4095), 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; -} |