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Diffstat (limited to 'arch/ppc/boot/utils/mkprep.c')
-rw-r--r--arch/ppc/boot/utils/mkprep.c241
1 files changed, 0 insertions, 241 deletions
diff --git a/arch/ppc/boot/utils/mkprep.c b/arch/ppc/boot/utils/mkprep.c
deleted file mode 100644
index 192bb397126..00000000000
--- a/arch/ppc/boot/utils/mkprep.c
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * Makes a prep bootable image which can be dd'd onto
- * a disk device to make a bootdisk. Will take
- * as input a elf executable, strip off the header
- * and write out a boot image as:
- * 1) default - strips elf header
- * suitable as a network boot image
- * 2) -pbp - strips elf header and writes out prep boot partition image
- * cat or dd onto disk for booting
- * 3) -asm - strips elf header and writes out as asm data
- * useful for generating data for a compressed image
- * -- Cort
- *
- * Modified for x86 hosted builds by Matt Porter <porter@neta.com>
- * Modified for Sparc hosted builds by Peter Wahl <PeterWahl@web.de>
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-/* size of read buffer */
-#define SIZE 0x1000
-
-/*
- * Partition table entry
- * - from the PReP spec
- */
-typedef struct partition_entry {
- unsigned char boot_indicator;
- unsigned char starting_head;
- unsigned char starting_sector;
- unsigned char starting_cylinder;
-
- unsigned char system_indicator;
- unsigned char ending_head;
- unsigned char ending_sector;
- unsigned char ending_cylinder;
-
- unsigned char beginning_sector[4];
- unsigned char number_of_sectors[4];
-} partition_entry_t;
-
-#define BootActive 0x80
-#define SystemPrep 0x41
-
-void copy_image(FILE *, FILE *);
-void write_prep_partition(FILE *, FILE *);
-void write_asm_data(FILE *, FILE *);
-
-unsigned int elfhdr_size = 65536;
-
-int main(int argc, char *argv[])
-{
- FILE *in, *out;
- int argptr = 1;
- int prep = 0;
- int asmoutput = 0;
-
- if (argc < 3 || argc > 4) {
- fprintf(stderr, "usage: %s [-pbp] [-asm] <boot-file> <image>\n",
- argv[0]);
- exit(-1);
- }
-
-/* needs to handle args more elegantly -- but this is a small/simple program */
-
- /* check for -pbp */
- if (!strcmp(argv[argptr], "-pbp")) {
- prep = 1;
- argptr++;
- }
-
- /* check for -asm */
- if (!strcmp(argv[argptr], "-asm")) {
- asmoutput = 1;
- argptr++;
- }
-
- /* input file */
- if (!strcmp(argv[argptr], "-"))
- in = stdin;
- else if (!(in = fopen(argv[argptr], "r")))
- exit(-1);
- argptr++;
-
- /* output file */
- if (!strcmp(argv[argptr], "-"))
- out = stdout;
- else if (!(out = fopen(argv[argptr], "w")))
- exit(-1);
- argptr++;
-
- /* skip elf header in input file */
- /*if ( !prep )*/
- fseek(in, elfhdr_size, SEEK_SET);
-
- /* write prep partition if necessary */
- if (prep)
- write_prep_partition(in, out);
-
- /* write input image to bootimage */
- if (asmoutput)
- write_asm_data(in, out);
- else
- copy_image(in, out);
-
- return 0;
-}
-
-void store_le32(unsigned int v, unsigned char *p)
-{
- p[0] = v;
- p[1] = v >>= 8;
- p[2] = v >>= 8;
- p[3] = v >> 8;
-}
-
-void write_prep_partition(FILE *in, FILE *out)
-{
- unsigned char block[512];
- partition_entry_t pe;
- unsigned char *entry = block;
- unsigned char *length = block + 4;
- long pos = ftell(in), size;
-
- if (fseek(in, 0, SEEK_END) < 0) {
- fprintf(stderr,"info failed\n");
- exit(-1);
- }
- size = ftell(in);
- if (fseek(in, pos, SEEK_SET) < 0) {
- fprintf(stderr,"info failed\n");
- exit(-1);
- }
-
- memset(block, '\0', sizeof(block));
-
- /* set entry point and boot image size skipping over elf header */
- store_le32(0x400/*+65536*/, entry);
- store_le32(size-elfhdr_size+0x400, length);
-
- /* sets magic number for msdos partition (used by linux) */
- block[510] = 0x55;
- block[511] = 0xAA;
-
- /*
- * Build a "PReP" partition table entry in the boot record
- * - "PReP" may only look at the system_indicator
- */
- pe.boot_indicator = BootActive;
- pe.system_indicator = SystemPrep;
- /*
- * The first block of the diskette is used by this "boot record" which
- * actually contains the partition table. (The first block of the
- * partition contains the boot image, but I digress...) We'll set up
- * one partition on the diskette and it shall contain the rest of the
- * diskette.
- */
- pe.starting_head = 0; /* zero-based */
- pe.starting_sector = 2; /* one-based */
- pe.starting_cylinder = 0; /* zero-based */
- pe.ending_head = 1; /* assumes two heads */
- pe.ending_sector = 18; /* assumes 18 sectors/track */
- pe.ending_cylinder = 79; /* assumes 80 cylinders/diskette */
-
- /*
- * The "PReP" software ignores the above fields and just looks at
- * the next two.
- * - size of the diskette is (assumed to be)
- * (2 tracks/cylinder)(18 sectors/tracks)(80 cylinders/diskette)
- * - unlike the above sector numbers, the beginning sector is zero-based!
- */
-#if 0
- store_le32(1, pe.beginning_sector);
-#else
- /* This has to be 0 on the PowerStack? */
- store_le32(0, pe.beginning_sector);
-#endif
-
- store_le32(2*18*80-1, pe.number_of_sectors);
-
- memcpy(&block[0x1BE], &pe, sizeof(pe));
-
- fwrite(block, sizeof(block), 1, out);
- fwrite(entry, 4, 1, out);
- fwrite(length, 4, 1, out);
- /* set file position to 2nd sector where image will be written */
- fseek( out, 0x400, SEEK_SET );
-}
-
-
-
-void copy_image(FILE *in, FILE *out)
-{
- char buf[SIZE];
- int n;
-
- while ( (n = fread(buf, 1, SIZE, in)) > 0 )
- fwrite(buf, 1, n, out);
-}
-
-
-void
-write_asm_data(FILE *in, FILE *out)
-{
- int i, cnt, pos = 0;
- unsigned int cksum = 0, val;
- unsigned char *lp;
- unsigned char buf[SIZE];
- size_t len;
-
- fputs("\t.data\n\t.globl input_data\ninput_data:\n", out);
- while ((len = fread(buf, 1, sizeof(buf), in)) > 0) {
- cnt = 0;
- lp = buf;
- /* Round up to longwords */
- while (len & 3)
- buf[len++] = '\0';
- for (i = 0; i < len; i += 4) {
- if (cnt == 0)
- fputs("\t.long\t", out);
- fprintf(out, "0x%02X%02X%02X%02X",
- lp[0], lp[1], lp[2], lp[3]);
- val = *(unsigned long *)lp;
- cksum ^= val;
- lp += 4;
- if (++cnt == 4) {
- cnt = 0;
- fprintf(out, " # %x \n", pos+i-12);
- } else {
- fputs(",", out);
- }
- }
- if (cnt)
- fputs("0\n", out);
- pos += len;
- }
- fprintf(out, "\t.globl input_len\ninput_len:\t.long\t0x%x\n", pos);
- fprintf(stderr, "cksum = %x\n", cksum);
-}