diff options
author | Jesper Nilsson <jesper.nilsson@axis.com> | 2009-04-21 11:44:57 +0200 |
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committer | Jesper Nilsson <jesper.nilsson@axis.com> | 2009-04-21 11:44:57 +0200 |
commit | 66ab3a74c5ce737effc2c64391e036b0938b1c36 (patch) | |
tree | abe71b0c811dd13c9b9ad2587ba8779a8f852220 /arch/cris/arch-v10/boot/tools | |
parent | a939b96cccdb65df80a52447ec8e4a6d79c56dbb (diff) |
CRIS: Merge machine dependent boot/compressed and boot/rescue
Merge the machine dependent boot directories for v10 and v32.
This avoids some code duplication and eases the way for further
merging later on.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Diffstat (limited to 'arch/cris/arch-v10/boot/tools')
-rw-r--r-- | arch/cris/arch-v10/boot/tools/build.c | 287 |
1 files changed, 0 insertions, 287 deletions
diff --git a/arch/cris/arch-v10/boot/tools/build.c b/arch/cris/arch-v10/boot/tools/build.c deleted file mode 100644 index c8adef36416..00000000000 --- a/arch/cris/arch-v10/boot/tools/build.c +++ /dev/null @@ -1,287 +0,0 @@ -/* - * linux/tools/build.c - * - * Copyright (C) 1991, 1992 Linus Torvalds - */ - -/* - * This file builds a disk-image from three different files: - * - * - bootsect: exactly 512 bytes of 8086 machine code, loads the rest - * - setup: 8086 machine code, sets up system parm - * - system: 80386 code for actual system - * - * It does some checking that all files are of the correct type, and - * just writes the result to stdout, removing headers and padding to - * the right amount. It also writes some system data to stderr. - */ - -/* - * Changes by tytso to allow root device specification - * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996 - * Cross compiling fixes by Gertjan van Wingerde, July 1996 - */ - -#include <stdio.h> /* fprintf */ -#include <string.h> -#include <stdlib.h> /* contains exit */ -#include <sys/types.h> /* unistd.h needs this */ -#include <sys/stat.h> -#include <sys/sysmacros.h> -#include <unistd.h> /* contains read/write */ -#include <fcntl.h> -#include <errno.h> - -#define MINIX_HEADER 32 - -#define N_MAGIC_OFFSET 1024 -#ifndef __BFD__ -static int GCC_HEADER = sizeof(struct exec); -#endif - -#ifdef __BIG_KERNEL__ -#define SYS_SIZE 0xffff -#else -#define SYS_SIZE DEF_SYSSIZE -#endif - -#define DEFAULT_MAJOR_ROOT 0 -#define DEFAULT_MINOR_ROOT 0 - -/* max nr of sectors of setup: don't change unless you also change - * bootsect etc */ -#define SETUP_SECTS 4 - -#define STRINGIFY(x) #x - -typedef union { - int i; - long l; - short s[2]; - char b[4]; -} conv; - -long intel_long(long l) -{ - conv t; - - t.b[0] = l & 0xff; l >>= 8; - t.b[1] = l & 0xff; l >>= 8; - t.b[2] = l & 0xff; l >>= 8; - t.b[3] = l & 0xff; l >>= 8; - return t.l; -} - -int intel_int(int i) -{ - conv t; - - t.b[0] = i & 0xff; i >>= 8; - t.b[1] = i & 0xff; i >>= 8; - t.b[2] = i & 0xff; i >>= 8; - t.b[3] = i & 0xff; i >>= 8; - return t.i; -} - -short intel_short(short l) -{ - conv t; - - t.b[0] = l & 0xff; l >>= 8; - t.b[1] = l & 0xff; l >>= 8; - return t.s[0]; -} - -void die(const char * str) -{ - fprintf(stderr,"%s\n",str); - exit(1); -} - -void usage(void) -{ - die("Usage: build bootsect setup system [rootdev] [> image]"); -} - -int main(int argc, char ** argv) -{ - int i,c,id,sz,tmp_int; - unsigned long sys_size, tmp_long; - char buf[1024]; -#ifndef __BFD__ - struct exec *ex = (struct exec *)buf; -#endif - char major_root, minor_root; - struct stat sb; - unsigned char setup_sectors; - - if ((argc < 4) || (argc > 5)) - usage(); - if (argc > 4) { - if (!strcmp(argv[4], "CURRENT")) { - if (stat("/", &sb)) { - perror("/"); - die("Couldn't stat /"); - } - major_root = major(sb.st_dev); - minor_root = minor(sb.st_dev); - } else if (strcmp(argv[4], "FLOPPY")) { - if (stat(argv[4], &sb)) { - perror(argv[4]); - die("Couldn't stat root device."); - } - major_root = major(sb.st_rdev); - minor_root = minor(sb.st_rdev); - } else { - major_root = 0; - minor_root = 0; - } - } else { - major_root = DEFAULT_MAJOR_ROOT; - minor_root = DEFAULT_MINOR_ROOT; - } - fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root); - for (i=0;i<sizeof buf; i++) buf[i]=0; - if ((id=open(argv[1],O_RDONLY,0))<0) - die("Unable to open 'boot'"); - if (read(id,buf,MINIX_HEADER) != MINIX_HEADER) - die("Unable to read header of 'boot'"); - if (((long *) buf)[0]!=intel_long(0x04100301)) - die("Non-Minix header of 'boot'"); - if (((long *) buf)[1]!=intel_long(MINIX_HEADER)) - die("Non-Minix header of 'boot'"); - if (((long *) buf)[3] != 0) - die("Illegal data segment in 'boot'"); - if (((long *) buf)[4] != 0) - die("Illegal bss in 'boot'"); - if (((long *) buf)[5] != 0) - die("Non-Minix header of 'boot'"); - if (((long *) buf)[7] != 0) - die("Illegal symbol table in 'boot'"); - i=read(id,buf,sizeof buf); - fprintf(stderr,"Boot sector %d bytes.\n",i); - if (i != 512) - die("Boot block must be exactly 512 bytes"); - if ((*(unsigned short *)(buf+510)) != (unsigned short)intel_short(0xAA55)) - die("Boot block hasn't got boot flag (0xAA55)"); - buf[508] = (char) minor_root; - buf[509] = (char) major_root; - i=write(1,buf,512); - if (i!=512) - die("Write call failed"); - close (id); - - if ((id=open(argv[2],O_RDONLY,0))<0) - die("Unable to open 'setup'"); - if (read(id,buf,MINIX_HEADER) != MINIX_HEADER) - die("Unable to read header of 'setup'"); - if (((long *) buf)[0]!=intel_long(0x04100301)) - die("Non-Minix header of 'setup'"); - if (((long *) buf)[1]!=intel_long(MINIX_HEADER)) - die("Non-Minix header of 'setup'"); - if (((long *) buf)[3] != 0) - die("Illegal data segment in 'setup'"); - if (((long *) buf)[4] != 0) - die("Illegal bss in 'setup'"); - if (((long *) buf)[5] != 0) - die("Non-Minix header of 'setup'"); - if (((long *) buf)[7] != 0) - die("Illegal symbol table in 'setup'"); - for (i=0 ; (c=read(id,buf,sizeof buf))>0 ; i+=c ) -#ifdef __BIG_KERNEL__ - { - if (!i) { - /* Working with memcpy because of alignment constraints - on Sparc - Gertjan */ - memcpy(&tmp_long, &buf[2], sizeof(long)); - if (tmp_long != intel_long(0x53726448) ) - die("Wrong magic in loader header of 'setup'"); - memcpy(&tmp_int, &buf[6], sizeof(int)); - if (tmp_int < intel_int(0x200)) - die("Wrong version of loader header of 'setup'"); - buf[0x11] = 1; /* LOADED_HIGH */ - tmp_long = intel_long(0x100000); - memcpy(&buf[0x14], &tmp_long, sizeof(long)); /* code32_start */ - } -#endif - if (write(1,buf,c)!=c) - die("Write call failed"); -#ifdef __BIG_KERNEL__ - } -#endif - if (c != 0) - die("read-error on 'setup'"); - close (id); - setup_sectors = (unsigned char)((i + 511) / 512); - /* for compatibility with LILO */ - if (setup_sectors < SETUP_SECTS) - setup_sectors = SETUP_SECTS; - fprintf(stderr,"Setup is %d bytes.\n",i); - for (c=0 ; c<sizeof(buf) ; c++) - buf[c] = '\0'; - while (i < setup_sectors * 512) { - c = setup_sectors * 512 - i; - if (c > sizeof(buf)) - c = sizeof(buf); - if (write(1,buf,c) != c) - die("Write call failed"); - i += c; - } - - if ((id=open(argv[3],O_RDONLY,0))<0) - die("Unable to open 'system'"); -#ifndef __BFD__ - if (read(id,buf,GCC_HEADER) != GCC_HEADER) - die("Unable to read header of 'system'"); - if (N_MAGIC(*ex) == ZMAGIC) { - GCC_HEADER = N_MAGIC_OFFSET; - lseek(id, GCC_HEADER, SEEK_SET); - } else if (N_MAGIC(*ex) != QMAGIC) - die("Non-GCC header of 'system'"); - fprintf(stderr,"System is %d kB (%d kB code, %d kB data and %d kB bss)\n", - (ex->a_text+ex->a_data+ex->a_bss)/1024, - ex->a_text /1024, - ex->a_data /1024, - ex->a_bss /1024); - sz = N_SYMOFF(*ex) - GCC_HEADER + 4; -#else - if (fstat (id, &sb)) { - perror ("fstat"); - die ("Unable to stat 'system'"); - } - sz = sb.st_size; - fprintf (stderr, "System is %d kB\n", sz/1024); -#endif - sys_size = (sz + 15) / 16; - if (sys_size > SYS_SIZE) - die("System is too big"); - while (sz > 0) { - int l, n; - - l = sz; - if (l > sizeof(buf)) - l = sizeof(buf); - if ((n=read(id, buf, l)) != l) { - if (n == -1) - perror(argv[1]); - else - fprintf(stderr, "Unexpected EOF\n"); - die("Can't read 'system'"); - } - if (write(1, buf, l) != l) - die("Write failed"); - sz -= l; - } - close(id); - if (lseek(1, 497, 0) == 497) { - if (write(1, &setup_sectors, 1) != 1) - die("Write of setup sectors failed"); - } - if (lseek(1,500,0) == 500) { - buf[0] = (sys_size & 0xff); - buf[1] = ((sys_size >> 8) & 0xff); - if (write(1, buf, 2) != 2) - die("Write failed"); - } - return(0); -} |