diff options
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/.gitignore | 1 | ||||
| -rw-r--r-- | scripts/Makefile | 3 | ||||
| -rw-r--r-- | scripts/ihex2fw.c | 268 |
3 files changed, 1 insertions, 271 deletions
diff --git a/scripts/.gitignore b/scripts/.gitignore index 09e2406f3b7..b939fbd0119 100644 --- a/scripts/.gitignore +++ b/scripts/.gitignore @@ -1,7 +1,6 @@ # # Generated files # -ihex2fw conmakehash kallsyms pnmtologo diff --git a/scripts/Makefile b/scripts/Makefile index 035182e16af..aafdf064fee 100644 --- a/scripts/Makefile +++ b/scripts/Makefile @@ -2,12 +2,11 @@ # scripts contains sources for various helper programs used throughout # the kernel for the build process. # --------------------------------------------------------------------------- -# ihex2fw: Parser/loader for IHEX formatted data # kallsyms: Find all symbols in vmlinux # pnmttologo: Convert pnm files to logo files +# conmakehash: Create chartable # conmakehash: Create arrays for initializing the kernel console tables -hostprogs-y := ihex2fw hostprogs-$(CONFIG_KALLSYMS) += kallsyms hostprogs-$(CONFIG_LOGO) += pnmtologo hostprogs-$(CONFIG_VT) += conmakehash diff --git a/scripts/ihex2fw.c b/scripts/ihex2fw.c deleted file mode 100644 index 8f7fdaa9e01..00000000000 --- a/scripts/ihex2fw.c +++ /dev/null @@ -1,268 +0,0 @@ -/* - * Parser/loader for IHEX formatted data. - * - * Copyright © 2008 David Woodhouse <dwmw2@infradead.org> - * Copyright © 2005 Jan Harkes <jaharkes@cs.cmu.edu> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <stdint.h> -#include <arpa/inet.h> -#include <stdio.h> -#include <errno.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mman.h> -#include <fcntl.h> -#include <string.h> -#include <unistd.h> -#include <stdlib.h> -#define _GNU_SOURCE -#include <getopt.h> - - -struct ihex_binrec { - struct ihex_binrec *next; /* not part of the real data structure */ - uint32_t addr; - uint16_t len; - uint8_t data[]; -}; - -/** - * nybble/hex are little helpers to parse hexadecimal numbers to a byte value - **/ -static uint8_t nybble(const uint8_t n) -{ - if (n >= '0' && n <= '9') return n - '0'; - else if (n >= 'A' && n <= 'F') return n - ('A' - 10); - else if (n >= 'a' && n <= 'f') return n - ('a' - 10); - return 0; -} - -static uint8_t hex(const uint8_t *data, uint8_t *crc) -{ - uint8_t val = (nybble(data[0]) << 4) | nybble(data[1]); - *crc += val; - return val; -} - -static int process_ihex(uint8_t *data, ssize_t size); -static void file_record(struct ihex_binrec *record); -static int output_records(int outfd); - -static int sort_records = 0; -static int wide_records = 0; - -int usage(void) -{ - fprintf(stderr, "ihex2fw: Convert ihex files into binary " - "representation for use by Linux kernel\n"); - fprintf(stderr, "usage: ihex2fw [<options>] <src.HEX> <dst.fw>\n"); - fprintf(stderr, " -w: wide records (16-bit length)\n"); - fprintf(stderr, " -s: sort records by address\n"); - return 1; -} - -int main(int argc, char **argv) -{ - int infd, outfd; - struct stat st; - uint8_t *data; - int opt; - - while ((opt = getopt(argc, argv, "ws")) != -1) { - switch (opt) { - case 'w': - wide_records = 1; - break; - case 's': - sort_records = 1; - break; - default: - return usage(); - } - } - - if (optind + 2 != argc) - return usage(); - - if (!strcmp(argv[optind], "-")) - infd = 0; - else - infd = open(argv[optind], O_RDONLY); - if (infd == -1) { - fprintf(stderr, "Failed to open source file: %s", - strerror(errno)); - return usage(); - } - if (fstat(infd, &st)) { - perror("stat"); - return 1; - } - data = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, infd, 0); - if (data == MAP_FAILED) { - perror("mmap"); - return 1; - } - - if (!strcmp(argv[optind+1], "-")) - outfd = 1; - else - outfd = open(argv[optind+1], O_TRUNC|O_CREAT|O_WRONLY, 0644); - if (outfd == -1) { - fprintf(stderr, "Failed to open destination file: %s", - strerror(errno)); - return usage(); - } - if (process_ihex(data, st.st_size)) - return 1; - - output_records(outfd); - return 0; -} - -static int process_ihex(uint8_t *data, ssize_t size) -{ - struct ihex_binrec *record; - uint32_t offset = 0; - uint8_t type, crc = 0, crcbyte = 0; - int i, j; - int line = 1; - int len; - - i = 0; -next_record: - /* search for the start of record character */ - while (i < size) { - if (data[i] == '\n') line++; - if (data[i++] == ':') break; - } - - /* Minimum record length would be about 10 characters */ - if (i + 10 > size) { - fprintf(stderr, "Can't find valid record at line %d\n", line); - return -EINVAL; - } - - len = hex(data + i, &crc); i += 2; - if (wide_records) { - len <<= 8; - len += hex(data + i, &crc); i += 2; - } - record = malloc((sizeof (*record) + len + 3) & ~3); - if (!record) { - fprintf(stderr, "out of memory for records\n"); - return -ENOMEM; - } - memset(record, 0, (sizeof(*record) + len + 3) & ~3); - record->len = len; - - /* now check if we have enough data to read everything */ - if (i + 8 + (record->len * 2) > size) { - fprintf(stderr, "Not enough data to read complete record at line %d\n", - line); - return -EINVAL; - } - - record->addr = hex(data + i, &crc) << 8; i += 2; - record->addr |= hex(data + i, &crc); i += 2; - type = hex(data + i, &crc); i += 2; - - for (j = 0; j < record->len; j++, i += 2) - record->data[j] = hex(data + i, &crc); - - /* check CRC */ - crcbyte = hex(data + i, &crc); i += 2; - if (crc != 0) { - fprintf(stderr, "CRC failure at line %d: got 0x%X, expected 0x%X\n", - line, crcbyte, (unsigned char)(crcbyte-crc)); - return -EINVAL; - } - - /* Done reading the record */ - switch (type) { - case 0: - /* old style EOF record? */ - if (!record->len) - break; - - record->addr += offset; - file_record(record); - goto next_record; - - case 1: /* End-Of-File Record */ - if (record->addr || record->len) { - fprintf(stderr, "Bad EOF record (type 01) format at line %d", - line); - return -EINVAL; - } - break; - - case 2: /* Extended Segment Address Record (HEX86) */ - case 4: /* Extended Linear Address Record (HEX386) */ - if (record->addr || record->len != 2) { - fprintf(stderr, "Bad HEX86/HEX386 record (type %02X) at line %d\n", - type, line); - return -EINVAL; - } - - /* We shouldn't really be using the offset for HEX86 because - * the wraparound case is specified quite differently. */ - offset = record->data[0] << 8 | record->data[1]; - offset <<= (type == 2 ? 4 : 16); - goto next_record; - - case 3: /* Start Segment Address Record */ - case 5: /* Start Linear Address Record */ - if (record->addr || record->len != 4) { - fprintf(stderr, "Bad Start Address record (type %02X) at line %d\n", - type, line); - return -EINVAL; - } - - /* These records contain the CS/IP or EIP where execution - * starts. Don't really know what to do with them. */ - goto next_record; - - default: - fprintf(stderr, "Unknown record (type %02X)\n", type); - return -EINVAL; - } - - return 0; -} - -static struct ihex_binrec *records; - -static void file_record(struct ihex_binrec *record) -{ - struct ihex_binrec **p = &records; - - while ((*p) && (!sort_records || (*p)->addr < record->addr)) - p = &((*p)->next); - - record->next = *p; - *p = record; -} - -static int output_records(int outfd) -{ - unsigned char zeroes[6] = {0, 0, 0, 0, 0, 0}; - struct ihex_binrec *p = records; - - while (p) { - uint16_t writelen = (p->len + 9) & ~3; - - p->addr = htonl(p->addr); - p->len = htons(p->len); - write(outfd, &p->addr, writelen); - p = p->next; - } - /* EOF record is zero length, since we don't bother to represent - the type field in the binary version */ - write(outfd, zeroes, 6); - return 0; -} |