From 19d8d79ccfd2fb67b1eb86e3c634a2e68a4c4b11 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:16:41 +0200 Subject: i386: move boot Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/i386/boot/tools/.gitignore | 1 - arch/i386/boot/tools/build.c | 168 ---------------------------------------- 2 files changed, 169 deletions(-) delete mode 100644 arch/i386/boot/tools/.gitignore delete mode 100644 arch/i386/boot/tools/build.c (limited to 'arch/i386') diff --git a/arch/i386/boot/tools/.gitignore b/arch/i386/boot/tools/.gitignore deleted file mode 100644 index 378eac25d31..00000000000 --- a/arch/i386/boot/tools/.gitignore +++ /dev/null @@ -1 +0,0 @@ -build diff --git a/arch/i386/boot/tools/build.c b/arch/i386/boot/tools/build.c deleted file mode 100644 index b4248740ff0..00000000000 --- a/arch/i386/boot/tools/build.c +++ /dev/null @@ -1,168 +0,0 @@ -/* - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 1997 Martin Mares - * Copyright (C) 2007 H. Peter Anvin - */ - -/* - * This file builds a disk-image from two different files: - * - * - 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 - * Rewritten by Martin Mares, April 1997 - * Substantially overhauled by H. Peter Anvin, April 2007 - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -typedef unsigned char u8; -typedef unsigned short u16; -typedef unsigned long u32; - -#define DEFAULT_MAJOR_ROOT 0 -#define DEFAULT_MINOR_ROOT 0 - -/* Minimal number of setup sectors */ -#define SETUP_SECT_MIN 5 -#define SETUP_SECT_MAX 64 - -/* This must be large enough to hold the entire setup */ -u8 buf[SETUP_SECT_MAX*512]; -int is_big_kernel; - -static void die(const char * str, ...) -{ - va_list args; - va_start(args, str); - vfprintf(stderr, str, args); - fputc('\n', stderr); - exit(1); -} - -static void usage(void) -{ - die("Usage: build [-b] setup system [rootdev] [> image]"); -} - -int main(int argc, char ** argv) -{ - unsigned int i, sz, setup_sectors; - int c; - u32 sys_size; - u8 major_root, minor_root; - struct stat sb; - FILE *file; - int fd; - void *kernel; - - if (argc > 2 && !strcmp(argv[1], "-b")) - { - is_big_kernel = 1; - argc--, argv++; - } - if ((argc < 3) || (argc > 4)) - usage(); - if (argc > 3) { - if (!strcmp(argv[3], "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[3], "FLOPPY")) { - if (stat(argv[3], &sb)) { - perror(argv[3]); - 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); - - /* Copy the setup code */ - file = fopen(argv[1], "r"); - if (!file) - die("Unable to open `%s': %m", argv[1]); - c = fread(buf, 1, sizeof(buf), file); - if (ferror(file)) - die("read-error on `setup'"); - if (c < 1024) - die("The setup must be at least 1024 bytes"); - if (buf[510] != 0x55 || buf[511] != 0xaa) - die("Boot block hasn't got boot flag (0xAA55)"); - fclose(file); - - /* Pad unused space with zeros */ - setup_sectors = (c + 511) / 512; - if (setup_sectors < SETUP_SECT_MIN) - setup_sectors = SETUP_SECT_MIN; - i = setup_sectors*512; - memset(buf+c, 0, i-c); - - /* Set the default root device */ - buf[508] = minor_root; - buf[509] = major_root; - - fprintf(stderr, "Setup is %d bytes (padded to %d bytes).\n", c, i); - - /* Open and stat the kernel file */ - fd = open(argv[2], O_RDONLY); - if (fd < 0) - die("Unable to open `%s': %m", argv[2]); - if (fstat(fd, &sb)) - die("Unable to stat `%s': %m", argv[2]); - sz = sb.st_size; - fprintf (stderr, "System is %d kB\n", (sz+1023)/1024); - kernel = mmap(NULL, sz, PROT_READ, MAP_SHARED, fd, 0); - if (kernel == MAP_FAILED) - die("Unable to mmap '%s': %m", argv[2]); - sys_size = (sz + 15) / 16; - if (!is_big_kernel && sys_size > DEF_SYSSIZE) - die("System is too big. Try using bzImage or modules."); - - /* Patch the setup code with the appropriate size parameters */ - buf[0x1f1] = setup_sectors-1; - buf[0x1f4] = sys_size; - buf[0x1f5] = sys_size >> 8; - buf[0x1f6] = sys_size >> 16; - buf[0x1f7] = sys_size >> 24; - - if (fwrite(buf, 1, i, stdout) != i) - die("Writing setup failed"); - - /* Copy the kernel code */ - if (fwrite(kernel, 1, sz, stdout) != sz) - die("Writing kernel failed"); - close(fd); - - /* Everything is OK */ - return 0; -} -- cgit v1.2.3