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https://github.com/AsahiLinux/u-boot
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9d25438fe7
Support for the new uImage format (FIT) is added to mkimage tool. Commandline syntax is appropriately extended: mkimage [-D dtc_options] -f fit-image.its fit-image mkimage (together with dtc) takes fit-image.its and referenced therein binaries (like vmlinux.bin.gz) as inputs, and produces fit-image file -- the final image that can be transferred to the target (e.g., via tftp) and then booted using the bootm command in U-Boot. Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
638 lines
15 KiB
C
638 lines
15 KiB
C
/*
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* (C) Copyright 2008 Semihalf
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*
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* (C) Copyright 2000-2004
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* DENX Software Engineering
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* Wolfgang Denk, wd@denx.de
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include "mkimage.h"
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#include <image.h>
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extern int errno;
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#ifndef MAP_FAILED
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#define MAP_FAILED (-1)
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#endif
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extern unsigned long crc32 (unsigned long crc, const char *buf, unsigned int len);
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static void copy_file (int, const char *, int);
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static void usage (void);
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static void image_verify_header (char *, int);
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static void fit_handle_file (void);
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char *datafile;
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char *imagefile;
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char *cmdname;
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int dflag = 0;
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int eflag = 0;
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int fflag = 0;
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int lflag = 0;
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int vflag = 0;
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int xflag = 0;
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int opt_os = IH_OS_LINUX;
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int opt_arch = IH_ARCH_PPC;
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int opt_type = IH_TYPE_KERNEL;
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int opt_comp = IH_COMP_GZIP;
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char *opt_dtc = MKIMAGE_DEFAULT_DTC_OPTIONS;
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image_header_t header;
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image_header_t *hdr = &header;
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int
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main (int argc, char **argv)
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{
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int ifd = -1;
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uint32_t checksum;
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uint32_t addr;
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uint32_t ep;
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struct stat sbuf;
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unsigned char *ptr;
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char *name = "";
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cmdname = *argv;
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addr = ep = 0;
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while (--argc > 0 && **++argv == '-') {
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while (*++*argv) {
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switch (**argv) {
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case 'l':
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lflag = 1;
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break;
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case 'A':
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if ((--argc <= 0) ||
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(opt_arch = genimg_get_arch_id (*++argv)) < 0)
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usage ();
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goto NXTARG;
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case 'C':
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if ((--argc <= 0) ||
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(opt_comp = genimg_get_comp_id (*++argv)) < 0)
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usage ();
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goto NXTARG;
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case 'D':
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if (--argc <= 0)
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usage ();
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opt_dtc = *++argv;
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goto NXTARG;
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case 'O':
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if ((--argc <= 0) ||
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(opt_os = genimg_get_os_id (*++argv)) < 0)
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usage ();
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goto NXTARG;
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case 'T':
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if ((--argc <= 0) ||
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(opt_type = genimg_get_type_id (*++argv)) < 0)
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usage ();
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goto NXTARG;
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case 'a':
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if (--argc <= 0)
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usage ();
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addr = strtoul (*++argv, (char **)&ptr, 16);
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if (*ptr) {
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fprintf (stderr,
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"%s: invalid load address %s\n",
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cmdname, *argv);
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exit (EXIT_FAILURE);
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}
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goto NXTARG;
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case 'd':
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if (--argc <= 0)
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usage ();
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datafile = *++argv;
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dflag = 1;
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goto NXTARG;
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case 'e':
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if (--argc <= 0)
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usage ();
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ep = strtoul (*++argv, (char **)&ptr, 16);
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if (*ptr) {
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fprintf (stderr,
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"%s: invalid entry point %s\n",
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cmdname, *argv);
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exit (EXIT_FAILURE);
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}
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eflag = 1;
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goto NXTARG;
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case 'f':
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if (--argc <= 0)
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usage ();
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datafile = *++argv;
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fflag = 1;
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goto NXTARG;
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case 'n':
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if (--argc <= 0)
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usage ();
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name = *++argv;
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goto NXTARG;
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case 'v':
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vflag++;
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break;
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case 'x':
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xflag++;
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break;
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default:
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usage ();
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}
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}
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NXTARG: ;
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}
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if ((argc != 1) ||
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(dflag && (fflag || lflag)) ||
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(fflag && (dflag || lflag)) ||
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(lflag && (dflag || fflag)))
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usage();
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if (!eflag) {
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ep = addr;
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/* If XIP, entry point must be after the U-Boot header */
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if (xflag)
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ep += image_get_header_size ();
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}
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/*
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* If XIP, ensure the entry point is equal to the load address plus
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* the size of the U-Boot header.
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*/
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if (xflag) {
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if (ep != addr + image_get_header_size ()) {
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fprintf (stderr,
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"%s: For XIP, the entry point must be the load addr + %lu\n",
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cmdname,
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(unsigned long)image_get_header_size ());
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exit (EXIT_FAILURE);
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}
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}
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imagefile = *argv;
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if (!fflag){
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if (lflag) {
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ifd = open (imagefile, O_RDONLY|O_BINARY);
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} else {
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ifd = open (imagefile,
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O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
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}
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if (ifd < 0) {
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fprintf (stderr, "%s: Can't open %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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}
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if (lflag) {
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/*
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* list header information of existing image
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*/
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if (fstat(ifd, &sbuf) < 0) {
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fprintf (stderr, "%s: Can't stat %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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if ((unsigned)sbuf.st_size < image_get_header_size ()) {
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fprintf (stderr,
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"%s: Bad size: \"%s\" is no valid image\n",
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cmdname, imagefile);
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exit (EXIT_FAILURE);
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}
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ptr = (unsigned char *)mmap(0, sbuf.st_size,
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PROT_READ, MAP_SHARED, ifd, 0);
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if ((caddr_t)ptr == (caddr_t)-1) {
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fprintf (stderr, "%s: Can't read %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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if (fdt_check_header (ptr)) {
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/* old-style image */
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image_verify_header ((char *)ptr, sbuf.st_size);
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image_print_contents_noindent ((image_header_t *)ptr);
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} else {
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/* FIT image */
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fit_print_contents_noindent (ptr);
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}
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(void) munmap((void *)ptr, sbuf.st_size);
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(void) close (ifd);
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exit (EXIT_SUCCESS);
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} else if (fflag) {
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/* Flattened Image Tree (FIT) format handling */
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debug ("FIT format handling\n");
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fit_handle_file ();
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exit (EXIT_SUCCESS);
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}
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/*
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* Must be -w then:
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*
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* write dummy header, to be fixed later
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*/
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memset (hdr, 0, image_get_header_size ());
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if (write(ifd, hdr, image_get_header_size ()) != image_get_header_size ()) {
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fprintf (stderr, "%s: Write error on %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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if (opt_type == IH_TYPE_MULTI || opt_type == IH_TYPE_SCRIPT) {
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char *file = datafile;
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uint32_t size;
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for (;;) {
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char *sep = NULL;
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if (file) {
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if ((sep = strchr(file, ':')) != NULL) {
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*sep = '\0';
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}
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if (stat (file, &sbuf) < 0) {
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fprintf (stderr, "%s: Can't stat %s: %s\n",
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cmdname, file, strerror(errno));
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exit (EXIT_FAILURE);
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}
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size = cpu_to_uimage (sbuf.st_size);
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} else {
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size = 0;
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}
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if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
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fprintf (stderr, "%s: Write error on %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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if (!file) {
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break;
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}
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if (sep) {
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*sep = ':';
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file = sep + 1;
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} else {
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file = NULL;
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}
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}
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file = datafile;
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for (;;) {
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char *sep = strchr(file, ':');
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if (sep) {
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*sep = '\0';
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copy_file (ifd, file, 1);
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*sep++ = ':';
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file = sep;
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} else {
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copy_file (ifd, file, 0);
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break;
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}
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}
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} else {
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copy_file (ifd, datafile, 0);
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}
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/* We're a bit of paranoid */
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#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__) && !defined(__APPLE__)
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(void) fdatasync (ifd);
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#else
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(void) fsync (ifd);
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#endif
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if (fstat(ifd, &sbuf) < 0) {
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fprintf (stderr, "%s: Can't stat %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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ptr = (unsigned char *)mmap(0, sbuf.st_size,
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PROT_READ|PROT_WRITE, MAP_SHARED, ifd, 0);
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if (ptr == (unsigned char *)MAP_FAILED) {
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fprintf (stderr, "%s: Can't map %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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hdr = (image_header_t *)ptr;
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checksum = crc32 (0,
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(const char *)(ptr + image_get_header_size ()),
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sbuf.st_size - image_get_header_size ()
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);
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/* Build new header */
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image_set_magic (hdr, IH_MAGIC);
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image_set_time (hdr, sbuf.st_mtime);
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image_set_size (hdr, sbuf.st_size - image_get_header_size ());
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image_set_load (hdr, addr);
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image_set_ep (hdr, ep);
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image_set_dcrc (hdr, checksum);
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image_set_os (hdr, opt_os);
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image_set_arch (hdr, opt_arch);
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image_set_type (hdr, opt_type);
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image_set_comp (hdr, opt_comp);
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image_set_name (hdr, name);
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checksum = crc32 (0, (const char *)hdr, image_get_header_size ());
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image_set_hcrc (hdr, checksum);
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image_print_contents_noindent (hdr);
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(void) munmap((void *)ptr, sbuf.st_size);
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/* We're a bit of paranoid */
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#if defined(_POSIX_SYNCHRONIZED_IO) && !defined(__sun__) && !defined(__FreeBSD__) && !defined(__APPLE__)
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(void) fdatasync (ifd);
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#else
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(void) fsync (ifd);
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#endif
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if (close(ifd)) {
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fprintf (stderr, "%s: Write error on %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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exit (EXIT_SUCCESS);
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}
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static void
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copy_file (int ifd, const char *datafile, int pad)
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{
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int dfd;
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struct stat sbuf;
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unsigned char *ptr;
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int tail;
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int zero = 0;
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int offset = 0;
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int size;
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if (vflag) {
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fprintf (stderr, "Adding Image %s\n", datafile);
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}
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if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
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fprintf (stderr, "%s: Can't open %s: %s\n",
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cmdname, datafile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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if (fstat(dfd, &sbuf) < 0) {
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fprintf (stderr, "%s: Can't stat %s: %s\n",
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cmdname, datafile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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ptr = (unsigned char *)mmap(0, sbuf.st_size,
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PROT_READ, MAP_SHARED, dfd, 0);
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if (ptr == (unsigned char *)MAP_FAILED) {
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fprintf (stderr, "%s: Can't read %s: %s\n",
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cmdname, datafile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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if (xflag) {
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unsigned char *p = NULL;
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/*
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* XIP: do not append the image_header_t at the
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* beginning of the file, but consume the space
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* reserved for it.
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*/
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if ((unsigned)sbuf.st_size < image_get_header_size ()) {
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fprintf (stderr,
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"%s: Bad size: \"%s\" is too small for XIP\n",
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cmdname, datafile);
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exit (EXIT_FAILURE);
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}
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for (p = ptr; p < ptr + image_get_header_size (); p++) {
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if ( *p != 0xff ) {
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fprintf (stderr,
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"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
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cmdname, datafile);
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exit (EXIT_FAILURE);
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}
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}
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offset = image_get_header_size ();
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}
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size = sbuf.st_size - offset;
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if (write(ifd, ptr + offset, size) != size) {
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fprintf (stderr, "%s: Write error on %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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if (pad && ((tail = size % 4) != 0)) {
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if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
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fprintf (stderr, "%s: Write error on %s: %s\n",
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cmdname, imagefile, strerror(errno));
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exit (EXIT_FAILURE);
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}
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}
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(void) munmap((void *)ptr, sbuf.st_size);
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(void) close (dfd);
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}
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void
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usage ()
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{
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fprintf (stderr, "Usage: %s -l image\n"
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" -l ==> list image header information\n",
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cmdname);
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fprintf (stderr, " %s [-x] -A arch -O os -T type -C comp "
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"-a addr -e ep -n name -d data_file[:data_file...] image\n"
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" -A ==> set architecture to 'arch'\n"
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" -O ==> set operating system to 'os'\n"
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" -T ==> set image type to 'type'\n"
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" -C ==> set compression type 'comp'\n"
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" -a ==> set load address to 'addr' (hex)\n"
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" -e ==> set entry point to 'ep' (hex)\n"
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" -n ==> set image name to 'name'\n"
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" -d ==> use image data from 'datafile'\n"
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" -x ==> set XIP (execute in place)\n",
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cmdname);
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fprintf (stderr, " %s [-D dtc_options] -f fit-image.its fit-image\n",
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cmdname);
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exit (EXIT_FAILURE);
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}
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static void
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image_verify_header (char *ptr, int image_size)
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{
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int len;
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char *data;
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uint32_t checksum;
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image_header_t header;
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image_header_t *hdr = &header;
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/*
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* create copy of header so that we can blank out the
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* checksum field for checking - this can't be done
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* on the PROT_READ mapped data.
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*/
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memcpy (hdr, ptr, sizeof(image_header_t));
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if (ntohl(hdr->ih_magic) != IH_MAGIC) {
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fprintf (stderr,
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"%s: Bad Magic Number: \"%s\" is no valid image\n",
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cmdname, imagefile);
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exit (EXIT_FAILURE);
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}
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data = (char *)hdr;
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len = sizeof(image_header_t);
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checksum = ntohl(hdr->ih_hcrc);
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hdr->ih_hcrc = htonl(0); /* clear for re-calculation */
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if (crc32 (0, data, len) != checksum) {
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fprintf (stderr,
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"%s: ERROR: \"%s\" has bad header checksum!\n",
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cmdname, imagefile);
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exit (EXIT_FAILURE);
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}
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data = ptr + sizeof(image_header_t);
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len = image_size - sizeof(image_header_t) ;
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|
|
if (crc32 (0, data, len) != ntohl(hdr->ih_dcrc)) {
|
|
fprintf (stderr,
|
|
"%s: ERROR: \"%s\" has corrupted data!\n",
|
|
cmdname, imagefile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* fit_handle_file - main FIT file processing function
|
|
*
|
|
* fit_handle_file() runs dtc to convert .its to .itb, includes
|
|
* binary data, updates timestamp property and calculates hashes.
|
|
*
|
|
* datafile - .its file
|
|
* imagefile - .itb file
|
|
*
|
|
* returns:
|
|
* only on success, otherwise calls exit (EXIT_FAILURE);
|
|
*/
|
|
static void fit_handle_file (void)
|
|
{
|
|
char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
|
|
char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
|
|
int tfd;
|
|
struct stat sbuf;
|
|
unsigned char *ptr;
|
|
|
|
/* call dtc to include binary properties into the tmp file */
|
|
if (strlen (imagefile) + strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 >
|
|
sizeof (tmpfile)) {
|
|
fprintf (stderr, "%s: Image file name (%s) too long, "
|
|
"can't create tmpfile",
|
|
imagefile, cmdname);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
sprintf (tmpfile, "%s%s", imagefile, MKIMAGE_TMPFILE_SUFFIX);
|
|
|
|
/* dtc -I dts -O -p 200 datafile > tmpfile */
|
|
sprintf (cmd, "%s %s %s > %s",
|
|
MKIMAGE_DTC, opt_dtc, datafile, tmpfile);
|
|
debug ("Trying to execute \"%s\"\n", cmd);
|
|
if (system (cmd) == -1) {
|
|
fprintf (stderr, "%s: system(%s) failed: %s\n",
|
|
cmdname, cmd, strerror(errno));
|
|
unlink (tmpfile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
/* load FIT blob into memory */
|
|
tfd = open (tmpfile, O_RDWR|O_BINARY);
|
|
|
|
if (tfd < 0) {
|
|
fprintf (stderr, "%s: Can't open %s: %s\n",
|
|
cmdname, tmpfile, strerror(errno));
|
|
unlink (tmpfile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
if (fstat (tfd, &sbuf) < 0) {
|
|
fprintf (stderr, "%s: Can't stat %s: %s\n",
|
|
cmdname, tmpfile, strerror(errno));
|
|
unlink (tmpfile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
ptr = (unsigned char *)mmap (0, sbuf.st_size,
|
|
PROT_READ|PROT_WRITE, MAP_SHARED, tfd, 0);
|
|
if ((caddr_t)ptr == (caddr_t)-1) {
|
|
fprintf (stderr, "%s: Can't read %s: %s\n",
|
|
cmdname, tmpfile, strerror(errno));
|
|
unlink (tmpfile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
/* check if ptr has a valid blob */
|
|
if (fdt_check_header (ptr)) {
|
|
fprintf (stderr, "%s: Invalid FIT blob\n", cmdname);
|
|
unlink (tmpfile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
/* set hashes for images in the blob */
|
|
if (fit_set_hashes (ptr)) {
|
|
fprintf (stderr, "%s Can't add hashes to FIT blob", cmdname);
|
|
unlink (tmpfile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
/* add a timestamp at offset 0 i.e., root */
|
|
if (fit_set_timestamp (ptr, 0, sbuf.st_mtime)) {
|
|
fprintf (stderr, "%s: Can't add image timestamp\n", cmdname);
|
|
unlink (tmpfile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
debug ("Added timestamp successfully\n");
|
|
|
|
munmap ((void *)ptr, sbuf.st_size);
|
|
close (tfd);
|
|
|
|
if (rename (tmpfile, imagefile) == -1) {
|
|
fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
|
|
cmdname, tmpfile, imagefile, strerror (errno));
|
|
unlink (tmpfile);
|
|
unlink (imagefile);
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
}
|