summaryrefslogtreecommitdiffstats
path: root/arch/cris/arch-v10/boot/tools/build.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/cris/arch-v10/boot/tools/build.c')
-rw-r--r--arch/cris/arch-v10/boot/tools/build.c287
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);
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-21 14:30:01 +0000