tools/mkimage.c - platform/external/u-boot - Gitiles

 /*
  * (C) Copyright 2008 Semihalf
  *
  * (C) Copyright 2000-2009
  * DENX Software Engineering
  * Wolfgang Denk, wd@denx.de
  *
  * SPDX-License-Identifier:	GPL-2.0+
  */

 #include "mkimage.h"
 #include <image.h>
 #include <version.h>

 static void copy_file(int, const char *, int);

 /* parameters initialized by core will be used by the image type code */
 struct image_tool_params params = {
 	.os = IH_OS_LINUX,
 	.arch = IH_ARCH_PPC,
 	.type = IH_TYPE_KERNEL,
 	.comp = IH_COMP_GZIP,
 	.dtc = MKIMAGE_DEFAULT_DTC_OPTIONS,
 	.imagename = "",
 	.imagename2 = "",
 };

 static int h_compare_image_name(const void *vtype1, const void *vtype2)
 {
 	const int *type1 = vtype1;
 	const int *type2 = vtype2;
 	const char *name1 = genimg_get_type_short_name(*type1);
 	const char *name2 = genimg_get_type_short_name(*type2);

 	return strcmp(name1, name2);
 }

 /* Show all image types supported by mkimage */
 static void show_image_types(void)
 {
 	struct image_type_params *tparams;
 	int order[IH_TYPE_COUNT];
 	int count;
 	int type;
 	int i;

 	/* Sort the names in order of short name for easier reading */
 	memset(order, '\0', sizeof(order));
 	for (count = 0, type = 0; type < IH_TYPE_COUNT; type++) {
 		tparams = imagetool_get_type(type);
 		if (tparams)
 			order[count++] = type;
 	}
 	qsort(order, count, sizeof(int), h_compare_image_name);

 	fprintf(stderr, "\nInvalid image type. Supported image types:\n");
 	for (i = 0; i < count; i++) {
 		type = order[i];
 		tparams = imagetool_get_type(type);
 		if (tparams) {
 			fprintf(stderr, "\t%-15s  %s\n",
 				genimg_get_type_short_name(type),
 				genimg_get_type_name(type));
 		}
 	}
 	fprintf(stderr, "\n");
 }

 static void usage(void)
 {
 	fprintf(stderr, "Usage: %s -l image\n"
 			 "          -l ==> list image header information\n",
 		params.cmdname);
 	fprintf(stderr,
 		"       %s [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image\n"
 		"          -A ==> set architecture to 'arch'\n"
 		"          -O ==> set operating system to 'os'\n"
 		"          -T ==> set image type to 'type'\n"
 		"          -C ==> set compression type 'comp'\n"
 		"          -a ==> set load address to 'addr' (hex)\n"
 		"          -e ==> set entry point to 'ep' (hex)\n"
 		"          -n ==> set image name to 'name'\n"
 		"          -d ==> use image data from 'datafile'\n"
 		"          -x ==> set XIP (execute in place)\n",
 		params.cmdname);
 	fprintf(stderr,
 		"       %s [-D dtc_options] [-f fit-image.its|-F] fit-image\n",
 		params.cmdname);
 	fprintf(stderr,
 		"          -D => set all options for device tree compiler\n"
 		"          -f => input filename for FIT source\n");
 #ifdef CONFIG_FIT_SIGNATURE
 	fprintf(stderr,
 		"Signing / verified boot options: [-k keydir] [-K dtb] [ -c <comment>] [-r]\n"
 		"          -k => set directory containing private keys\n"
 		"          -K => write public keys to this .dtb file\n"
 		"          -c => add comment in signature node\n"
 		"          -F => re-sign existing FIT image\n"
 		"          -r => mark keys used as 'required' in dtb\n");
 #else
 	fprintf(stderr,
 		"Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)\n");
 #endif
 	fprintf(stderr, "       %s -V ==> print version information and exit\n",
 		params.cmdname);
 	fprintf(stderr, "Use -T to see a list of available image types\n");

 	exit(EXIT_FAILURE);
 }

 static void process_args(int argc, char **argv)
 {
 	char *ptr;
 	int opt;

 	while ((opt = getopt(argc, argv,
 			     "a:A:cC:d:D:e:f:Fk:K:ln:O:rR:sT:vVx")) != -1) {
 		switch (opt) {
 		case 'a':
 			params.addr = strtoull(optarg, &ptr, 16);
 			if (*ptr) {
 				fprintf(stderr, "%s: invalid load address %s\n",
 					params.cmdname, optarg);
 				exit(EXIT_FAILURE);
 			}
 			break;
 		case 'A':
 			params.arch = genimg_get_arch_id(optarg);
 			if (params.arch < 0)
 				usage();
 			break;
 		case 'c':
 			params.comment = optarg;
 			break;
 		case 'C':
 			params.comp = genimg_get_comp_id(optarg);
 			if (params.comp < 0)
 				usage();
 			break;
 		case 'd':
 			params.datafile = optarg;
 			params.dflag = 1;
 			break;
 		case 'D':
 			params.dtc = optarg;
 			break;
 		case 'e':
 			params.ep = strtoull(optarg, &ptr, 16);
 			if (*ptr) {
 				fprintf(stderr, "%s: invalid entry point %s\n",
 					params.cmdname, optarg);
 				exit(EXIT_FAILURE);
 			}
 			params.eflag = 1;
 			break;
 		case 'f':
 			params.datafile = optarg;
 			/* no break */
 		case 'F':
 			/*
 			 * The flattened image tree (FIT) format
 			 * requires a flattened device tree image type
 			 */
 			params.type = IH_TYPE_FLATDT;
 			params.fflag = 1;
 			break;
 		case 'k':
 			params.keydir = optarg;
 			break;
 		case 'K':
 			params.keydest = optarg;
 			break;
 		case 'l':
 			params.lflag = 1;
 			break;
 		case 'n':
 			params.imagename = optarg;
 			break;
 		case 'O':
 			params.os = genimg_get_os_id(optarg);
 			if (params.os < 0)
 				usage();
 			break;
 		case 'r':
 			params.require_keys = 1;
 			break;
 		case 'R':
 			/*
 			 * This entry is for the second configuration
 			 * file, if only one is not enough.
 			 */
 			params.imagename2 = optarg;
 			break;
 		case 's':
 			params.skipcpy = 1;
 			break;
 		case 'T':
 			params.type = genimg_get_type_id(optarg);
 			if (params.type < 0) {
 				show_image_types();
 				usage();
 			}
 			break;
 		case 'v':
 			params.vflag++;
 			break;
 		case 'V':
 			printf("mkimage version %s\n", PLAIN_VERSION);
 			exit(EXIT_SUCCESS);
 		case 'x':
 			params.xflag++;
 			break;
 		default:
 			usage();
 		}
 	}

 	if (optind >= argc)
 		usage();
 	params.imagefile = argv[optind];
 }


 int main(int argc, char **argv)
 {
 	int ifd = -1;
 	struct stat sbuf;
 	char *ptr;
 	int retval = 0;
 	struct image_type_params *tparams = NULL;
 	int pad_len = 0;
 	int dfd;

 	params.cmdname = *argv;
 	params.addr = 0;
 	params.ep = 0;

 	process_args(argc, argv);

 	/* set tparams as per input type_id */
 	tparams = imagetool_get_type(params.type);
 	if (tparams == NULL) {
 		fprintf (stderr, "%s: unsupported type %s\n",
 			params.cmdname, genimg_get_type_name(params.type));
 		exit (EXIT_FAILURE);
 	}

 	/*
 	 * check the passed arguments parameters meets the requirements
 	 * as per image type to be generated/listed
 	 */
 	if (tparams->check_params)
 		if (tparams->check_params (&params))
 			usage();

 	if (!params.eflag) {
 		params.ep = params.addr;
 		/* If XIP, entry point must be after the U-Boot header */
 		if (params.xflag)
 			params.ep += tparams->header_size;
 	}

 	if (params.fflag){
 		if (tparams->fflag_handle)
 			/*
 			 * in some cases, some additional processing needs
 			 * to be done if fflag is defined
 			 *
 			 * For ex. fit_handle_file for Fit file support
 			 */
 			retval = tparams->fflag_handle(&params);

 		if (retval != EXIT_SUCCESS)
 			exit (retval);
 	}

 	if (params.lflag || params.fflag) {
 		ifd = open (params.imagefile, O_RDONLY|O_BINARY);
 	} else {
 		ifd = open (params.imagefile,
 			O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666);
 	}

 	if (ifd < 0) {
 		fprintf (stderr, "%s: Can't open %s: %s\n",
 			params.cmdname, params.imagefile,
 			strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	if (params.lflag || params.fflag) {
 		/*
 		 * list header information of existing image
 		 */
 		if (fstat(ifd, &sbuf) < 0) {
 			fprintf (stderr, "%s: Can't stat %s: %s\n",
 				params.cmdname, params.imagefile,
 				strerror(errno));
 			exit (EXIT_FAILURE);
 		}

 		if ((unsigned)sbuf.st_size < tparams->header_size) {
 			fprintf (stderr,
 				"%s: Bad size: \"%s\" is not valid image\n",
 				params.cmdname, params.imagefile);
 			exit (EXIT_FAILURE);
 		}

 		ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0);
 		if (ptr == MAP_FAILED) {
 			fprintf (stderr, "%s: Can't read %s: %s\n",
 				params.cmdname, params.imagefile,
 				strerror(errno));
 			exit (EXIT_FAILURE);
 		}

 		/*
 		 * scan through mkimage registry for all supported image types
 		 * and verify the input image file header for match
 		 * Print the image information for matched image type
 		 * Returns the error code if not matched
 		 */
 		retval = imagetool_verify_print_header(ptr, &sbuf,
 				tparams, &params);

 		(void) munmap((void *)ptr, sbuf.st_size);
 		(void) close (ifd);

 		exit (retval);
 	}

 	if ((params.type != IH_TYPE_MULTI) && (params.type != IH_TYPE_SCRIPT)) {
 		dfd = open(params.datafile, O_RDONLY | O_BINARY);
 		if (dfd < 0) {
 			fprintf(stderr, "%s: Can't open %s: %s\n",
 				params.cmdname, params.datafile,
 				strerror(errno));
 			exit(EXIT_FAILURE);
 		}

 		if (fstat(dfd, &sbuf) < 0) {
 			fprintf(stderr, "%s: Can't stat %s: %s\n",
 				params.cmdname, params.datafile,
 				strerror(errno));
 			exit(EXIT_FAILURE);
 		}

 		params.file_size = sbuf.st_size + tparams->header_size;
 		close(dfd);
 	}

 	/*
 	 * In case there an header with a variable
 	 * length will be added, the corresponding
 	 * function is called. This is responsible to
 	 * allocate memory for the header itself.
 	 */
 	if (tparams->vrec_header)
 		pad_len = tparams->vrec_header(&params, tparams);
 	else
 		memset(tparams->hdr, 0, tparams->header_size);

 	if (write(ifd, tparams->hdr, tparams->header_size)
 					!= tparams->header_size) {
 		fprintf (stderr, "%s: Write error on %s: %s\n",
 			params.cmdname, params.imagefile, strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	if (!params.skipcpy) {
 		if (params.type == IH_TYPE_MULTI ||
 		    params.type == IH_TYPE_SCRIPT) {
 			char *file = params.datafile;
 			uint32_t size;

 			for (;;) {
 				char *sep = NULL;

 				if (file) {
 					if ((sep = strchr(file, ':')) != NULL) {
 						*sep = '\0';
 					}

 					if (stat (file, &sbuf) < 0) {
 						fprintf (stderr, "%s: Can't stat %s: %s\n",
 							 params.cmdname, file, strerror(errno));
 						exit (EXIT_FAILURE);
 					}
 					size = cpu_to_uimage (sbuf.st_size);
 				} else {
 					size = 0;
 				}

 				if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
 					fprintf (stderr, "%s: Write error on %s: %s\n",
 						 params.cmdname, params.imagefile,
 						 strerror(errno));
 					exit (EXIT_FAILURE);
 				}

 				if (!file) {
 					break;
 				}

 				if (sep) {
 					*sep = ':';
 					file = sep + 1;
 				} else {
 					file = NULL;
 				}
 			}

 			file = params.datafile;

 			for (;;) {
 				char *sep = strchr(file, ':');
 				if (sep) {
 					*sep = '\0';
 					copy_file (ifd, file, 1);
 					*sep++ = ':';
 					file = sep;
 				} else {
 					copy_file (ifd, file, 0);
 					break;
 				}
 			}
 		} else if (params.type == IH_TYPE_PBLIMAGE) {
 			/* PBL has special Image format, implements its' own */
 			pbl_load_uboot(ifd, &params);
 		} else {
 			copy_file(ifd, params.datafile, pad_len);
 		}
 	}

 	/* We're a bit of paranoid */
 #if defined(_POSIX_SYNCHRONIZED_IO) && \
    !defined(__sun__) && \
    !defined(__FreeBSD__) && \
    !defined(__OpenBSD__) && \
    !defined(__APPLE__)
 	(void) fdatasync (ifd);
 #else
 	(void) fsync (ifd);
 #endif

 	if (fstat(ifd, &sbuf) < 0) {
 		fprintf (stderr, "%s: Can't stat %s: %s\n",
 			params.cmdname, params.imagefile, strerror(errno));
 		exit (EXIT_FAILURE);
 	}
 	params.file_size = sbuf.st_size;

 	ptr = mmap(0, sbuf.st_size, PROT_READ|PROT_WRITE, MAP_SHARED, ifd, 0);
 	if (ptr == MAP_FAILED) {
 		fprintf (stderr, "%s: Can't map %s: %s\n",
 			params.cmdname, params.imagefile, strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	/* Setup the image header as per input image type*/
 	if (tparams->set_header)
 		tparams->set_header (ptr, &sbuf, ifd, &params);
 	else {
 		fprintf (stderr, "%s: Can't set header for %s: %s\n",
 			params.cmdname, tparams->name, strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	/* Print the image information by processing image header */
 	if (tparams->print_header)
 		tparams->print_header (ptr);
 	else {
 		fprintf (stderr, "%s: Can't print header for %s: %s\n",
 			params.cmdname, tparams->name, strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	(void) munmap((void *)ptr, sbuf.st_size);

 	/* We're a bit of paranoid */
 #if defined(_POSIX_SYNCHRONIZED_IO) && \
    !defined(__sun__) && \
    !defined(__FreeBSD__) && \
    !defined(__OpenBSD__) && \
    !defined(__APPLE__)
 	(void) fdatasync (ifd);
 #else
 	(void) fsync (ifd);
 #endif

 	if (close(ifd)) {
 		fprintf (stderr, "%s: Write error on %s: %s\n",
 			params.cmdname, params.imagefile, strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	exit (EXIT_SUCCESS);
 }

 static void
 copy_file (int ifd, const char *datafile, int pad)
 {
 	int dfd;
 	struct stat sbuf;
 	unsigned char *ptr;
 	int tail;
 	int zero = 0;
 	uint8_t zeros[4096];
 	int offset = 0;
 	int size;
 	struct image_type_params *tparams = imagetool_get_type(params.type);

 	memset(zeros, 0, sizeof(zeros));

 	if (params.vflag) {
 		fprintf (stderr, "Adding Image %s\n", datafile);
 	}

 	if ((dfd = open(datafile, O_RDONLY|O_BINARY)) < 0) {
 		fprintf (stderr, "%s: Can't open %s: %s\n",
 			params.cmdname, datafile, strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	if (fstat(dfd, &sbuf) < 0) {
 		fprintf (stderr, "%s: Can't stat %s: %s\n",
 			params.cmdname, datafile, strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
 	if (ptr == MAP_FAILED) {
 		fprintf (stderr, "%s: Can't read %s: %s\n",
 			params.cmdname, datafile, strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	if (params.xflag) {
 		unsigned char *p = NULL;
 		/*
 		 * XIP: do not append the image_header_t at the
 		 * beginning of the file, but consume the space
 		 * reserved for it.
 		 */

 		if ((unsigned)sbuf.st_size < tparams->header_size) {
 			fprintf (stderr,
 				"%s: Bad size: \"%s\" is too small for XIP\n",
 				params.cmdname, datafile);
 			exit (EXIT_FAILURE);
 		}

 		for (p = ptr; p < ptr + tparams->header_size; p++) {
 			if ( *p != 0xff ) {
 				fprintf (stderr,
 					"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
 					params.cmdname, datafile);
 				exit (EXIT_FAILURE);
 			}
 		}

 		offset = tparams->header_size;
 	}

 	size = sbuf.st_size - offset;
 	if (write(ifd, ptr + offset, size) != size) {
 		fprintf (stderr, "%s: Write error on %s: %s\n",
 			params.cmdname, params.imagefile, strerror(errno));
 		exit (EXIT_FAILURE);
 	}

 	tail = size % 4;
 	if ((pad == 1) && (tail != 0)) {

 		if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
 			fprintf (stderr, "%s: Write error on %s: %s\n",
 				params.cmdname, params.imagefile,
 				strerror(errno));
 			exit (EXIT_FAILURE);
 		}
 	} else if (pad > 1) {
 		while (pad > 0) {
 			int todo = sizeof(zeros);

 			if (todo > pad)
 				todo = pad;
 			if (write(ifd, (char *)&zeros, todo) != todo) {
 				fprintf(stderr, "%s: Write error on %s: %s\n",
 					params.cmdname, params.imagefile,
 					strerror(errno));
 				exit(EXIT_FAILURE);
 			}
 			pad -= todo;
 		}
 	}

 	(void) munmap((void *)ptr, sbuf.st_size);
 	(void) close (dfd);
 }
	/*
	* (C) Copyright 2008 Semihalf
	*
	* (C) Copyright 2000-2009
	* DENX Software Engineering
	* Wolfgang Denk, wd@denx.de
	*
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include "mkimage.h"
	#include <image.h>
	#include <version.h>

	static void copy_file(int, const char *, int);

	/* parameters initialized by core will be used by the image type code */
	struct image_tool_params params = {
	.os = IH_OS_LINUX,
	.arch = IH_ARCH_PPC,
	.type = IH_TYPE_KERNEL,
	.comp = IH_COMP_GZIP,
	.dtc = MKIMAGE_DEFAULT_DTC_OPTIONS,
	.imagename = "",
	.imagename2 = "",
	};

	static int h_compare_image_name(const void vtype1, const void vtype2)
	{
	const int *type1 = vtype1;
	const int *type2 = vtype2;
	const char name1 = genimg_get_type_short_name(type1);
	const char name2 = genimg_get_type_short_name(type2);

	return strcmp(name1, name2);
	}

	/* Show all image types supported by mkimage */
	static void show_image_types(void)
	{
	struct image_type_params *tparams;
	int order[IH_TYPE_COUNT];
	int count;
	int type;
	int i;

	/* Sort the names in order of short name for easier reading */
	memset(order, '\0', sizeof(order));
	for (count = 0, type = 0; type < IH_TYPE_COUNT; type++) {
	tparams = imagetool_get_type(type);
	if (tparams)
	order[count++] = type;
	}
	qsort(order, count, sizeof(int), h_compare_image_name);

	fprintf(stderr, "\nInvalid image type. Supported image types:\n");
	for (i = 0; i < count; i++) {
	type = order[i];
	tparams = imagetool_get_type(type);
	if (tparams) {
	fprintf(stderr, "\t%-15s %s\n",
	genimg_get_type_short_name(type),
	genimg_get_type_name(type));
	}
	}
	fprintf(stderr, "\n");
	}

	static void usage(void)
	{
	fprintf(stderr, "Usage: %s -l image\n"
	" -l ==> list image header information\n",
	params.cmdname);
	fprintf(stderr,
	" %s [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image\n"
	" -A ==> set architecture to 'arch'\n"
	" -O ==> set operating system to 'os'\n"
	" -T ==> set image type to 'type'\n"
	" -C ==> set compression type 'comp'\n"
	" -a ==> set load address to 'addr' (hex)\n"
	" -e ==> set entry point to 'ep' (hex)\n"
	" -n ==> set image name to 'name'\n"
	" -d ==> use image data from 'datafile'\n"
	" -x ==> set XIP (execute in place)\n",
	params.cmdname);
	fprintf(stderr,
	" %s [-D dtc_options] [-f fit-image.its\|-F] fit-image\n",
	params.cmdname);
	fprintf(stderr,
	" -D => set all options for device tree compiler\n"
	" -f => input filename for FIT source\n");
	#ifdef CONFIG_FIT_SIGNATURE
	fprintf(stderr,
	"Signing / verified boot options: [-k keydir] [-K dtb] [ -c <comment>] [-r]\n"
	" -k => set directory containing private keys\n"
	" -K => write public keys to this .dtb file\n"
	" -c => add comment in signature node\n"
	" -F => re-sign existing FIT image\n"
	" -r => mark keys used as 'required' in dtb\n");
	#else
	fprintf(stderr,
	"Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)\n");
	#endif
	fprintf(stderr, " %s -V ==> print version information and exit\n",
	params.cmdname);
	fprintf(stderr, "Use -T to see a list of available image types\n");

	exit(EXIT_FAILURE);
	}

	static void process_args(int argc, char **argv)
	{
	char *ptr;
	int opt;

	while ((opt = getopt(argc, argv,
	"a:A:cC:d:D:e:f:Fk:K:ln:O:rR:sT:vVx")) != -1) {
	switch (opt) {
	case 'a':
	params.addr = strtoull(optarg, &ptr, 16);
	if (*ptr) {
	fprintf(stderr, "%s: invalid load address %s\n",
	params.cmdname, optarg);
	exit(EXIT_FAILURE);
	}
	break;
	case 'A':
	params.arch = genimg_get_arch_id(optarg);
	if (params.arch < 0)
	usage();
	break;
	case 'c':
	params.comment = optarg;
	break;
	case 'C':
	params.comp = genimg_get_comp_id(optarg);
	if (params.comp < 0)
	usage();
	break;
	case 'd':
	params.datafile = optarg;
	params.dflag = 1;
	break;
	case 'D':
	params.dtc = optarg;
	break;
	case 'e':
	params.ep = strtoull(optarg, &ptr, 16);
	if (*ptr) {
	fprintf(stderr, "%s: invalid entry point %s\n",
	params.cmdname, optarg);
	exit(EXIT_FAILURE);
	}
	params.eflag = 1;
	break;
	case 'f':
	params.datafile = optarg;
	/* no break */
	case 'F':
	/*
	* The flattened image tree (FIT) format
	* requires a flattened device tree image type
	*/
	params.type = IH_TYPE_FLATDT;
	params.fflag = 1;
	break;
	case 'k':
	params.keydir = optarg;
	break;
	case 'K':
	params.keydest = optarg;
	break;
	case 'l':
	params.lflag = 1;
	break;
	case 'n':
	params.imagename = optarg;
	break;
	case 'O':
	params.os = genimg_get_os_id(optarg);
	if (params.os < 0)
	usage();
	break;
	case 'r':
	params.require_keys = 1;
	break;
	case 'R':
	/*
	* This entry is for the second configuration
	* file, if only one is not enough.
	*/
	params.imagename2 = optarg;
	break;
	case 's':
	params.skipcpy = 1;
	break;
	case 'T':
	params.type = genimg_get_type_id(optarg);
	if (params.type < 0) {
	show_image_types();
	usage();
	}
	break;
	case 'v':
	params.vflag++;
	break;
	case 'V':
	printf("mkimage version %s\n", PLAIN_VERSION);
	exit(EXIT_SUCCESS);
	case 'x':
	params.xflag++;
	break;
	default:
	usage();
	}
	}

	if (optind >= argc)
	usage();
	params.imagefile = argv[optind];
	}


	int main(int argc, char **argv)
	{
	int ifd = -1;
	struct stat sbuf;
	char *ptr;
	int retval = 0;
	struct image_type_params *tparams = NULL;
	int pad_len = 0;
	int dfd;

	params.cmdname = *argv;
	params.addr = 0;
	params.ep = 0;

	process_args(argc, argv);

	/* set tparams as per input type_id */
	tparams = imagetool_get_type(params.type);
	if (tparams == NULL) {
	fprintf (stderr, "%s: unsupported type %s\n",
	params.cmdname, genimg_get_type_name(params.type));
	exit (EXIT_FAILURE);
	}

	/*
	* check the passed arguments parameters meets the requirements
	* as per image type to be generated/listed
	*/
	if (tparams->check_params)
	if (tparams->check_params (&params))
	usage();

	if (!params.eflag) {
	params.ep = params.addr;
	/* If XIP, entry point must be after the U-Boot header */
	if (params.xflag)
	params.ep += tparams->header_size;
	}

	if (params.fflag){
	if (tparams->fflag_handle)
	/*
	* in some cases, some additional processing needs
	* to be done if fflag is defined
	*
	* For ex. fit_handle_file for Fit file support
	*/
	retval = tparams->fflag_handle(&params);

	if (retval != EXIT_SUCCESS)
	exit (retval);
	}

	if (params.lflag \|\| params.fflag) {
	ifd = open (params.imagefile, O_RDONLY\|O_BINARY);
	} else {
	ifd = open (params.imagefile,
	O_RDWR\|O_CREAT\|O_TRUNC\|O_BINARY, 0666);
	}

	if (ifd < 0) {
	fprintf (stderr, "%s: Can't open %s: %s\n",
	params.cmdname, params.imagefile,
	strerror(errno));
	exit (EXIT_FAILURE);
	}

	if (params.lflag \|\| params.fflag) {
	/*
	* list header information of existing image
	*/
	if (fstat(ifd, &sbuf) < 0) {
	fprintf (stderr, "%s: Can't stat %s: %s\n",
	params.cmdname, params.imagefile,
	strerror(errno));
	exit (EXIT_FAILURE);
	}

	if ((unsigned)sbuf.st_size < tparams->header_size) {
	fprintf (stderr,
	"%s: Bad size: \"%s\" is not valid image\n",
	params.cmdname, params.imagefile);
	exit (EXIT_FAILURE);
	}

	ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0);
	if (ptr == MAP_FAILED) {
	fprintf (stderr, "%s: Can't read %s: %s\n",
	params.cmdname, params.imagefile,
	strerror(errno));
	exit (EXIT_FAILURE);
	}

	/*
	* scan through mkimage registry for all supported image types
	* and verify the input image file header for match
	* Print the image information for matched image type
	* Returns the error code if not matched
	*/
	retval = imagetool_verify_print_header(ptr, &sbuf,
	tparams, &params);

	(void) munmap((void *)ptr, sbuf.st_size);
	(void) close (ifd);

	exit (retval);
	}

	if ((params.type != IH_TYPE_MULTI) && (params.type != IH_TYPE_SCRIPT)) {
	dfd = open(params.datafile, O_RDONLY \| O_BINARY);
	if (dfd < 0) {
	fprintf(stderr, "%s: Can't open %s: %s\n",
	params.cmdname, params.datafile,
	strerror(errno));
	exit(EXIT_FAILURE);
	}

	if (fstat(dfd, &sbuf) < 0) {
	fprintf(stderr, "%s: Can't stat %s: %s\n",
	params.cmdname, params.datafile,
	strerror(errno));
	exit(EXIT_FAILURE);
	}

	params.file_size = sbuf.st_size + tparams->header_size;
	close(dfd);
	}

	/*
	* In case there an header with a variable
	* length will be added, the corresponding
	* function is called. This is responsible to
	* allocate memory for the header itself.
	*/
	if (tparams->vrec_header)
	pad_len = tparams->vrec_header(&params, tparams);
	else
	memset(tparams->hdr, 0, tparams->header_size);

	if (write(ifd, tparams->hdr, tparams->header_size)
	!= tparams->header_size) {
	fprintf (stderr, "%s: Write error on %s: %s\n",
	params.cmdname, params.imagefile, strerror(errno));
	exit (EXIT_FAILURE);
	}

	if (!params.skipcpy) {
	if (params.type == IH_TYPE_MULTI \|\|
	params.type == IH_TYPE_SCRIPT) {
	char *file = params.datafile;
	uint32_t size;

	for (;;) {
	char *sep = NULL;

	if (file) {
	if ((sep = strchr(file, ':')) != NULL) {
	*sep = '\0';
	}

	if (stat (file, &sbuf) < 0) {
	fprintf (stderr, "%s: Can't stat %s: %s\n",
	params.cmdname, file, strerror(errno));
	exit (EXIT_FAILURE);
	}
	size = cpu_to_uimage (sbuf.st_size);
	} else {
	size = 0;
	}

	if (write(ifd, (char *)&size, sizeof(size)) != sizeof(size)) {
	fprintf (stderr, "%s: Write error on %s: %s\n",
	params.cmdname, params.imagefile,
	strerror(errno));
	exit (EXIT_FAILURE);
	}

	if (!file) {
	break;
	}

	if (sep) {
	*sep = ':';
	file = sep + 1;
	} else {
	file = NULL;
	}
	}

	file = params.datafile;

	for (;;) {
	char *sep = strchr(file, ':');
	if (sep) {
	*sep = '\0';
	copy_file (ifd, file, 1);
	*sep++ = ':';
	file = sep;
	} else {
	copy_file (ifd, file, 0);
	break;
	}
	}
	} else if (params.type == IH_TYPE_PBLIMAGE) {
	/* PBL has special Image format, implements its' own */
	pbl_load_uboot(ifd, &params);
	} else {
	copy_file(ifd, params.datafile, pad_len);
	}
	}

	/* We're a bit of paranoid */
	#if defined(_POSIX_SYNCHRONIZED_IO) && \
	!defined(__sun__) && \
	!defined(__FreeBSD__) && \
	!defined(__OpenBSD__) && \
	!defined(__APPLE__)
	(void) fdatasync (ifd);
	#else
	(void) fsync (ifd);
	#endif

	if (fstat(ifd, &sbuf) < 0) {
	fprintf (stderr, "%s: Can't stat %s: %s\n",
	params.cmdname, params.imagefile, strerror(errno));
	exit (EXIT_FAILURE);
	}
	params.file_size = sbuf.st_size;

	ptr = mmap(0, sbuf.st_size, PROT_READ\|PROT_WRITE, MAP_SHARED, ifd, 0);
	if (ptr == MAP_FAILED) {
	fprintf (stderr, "%s: Can't map %s: %s\n",
	params.cmdname, params.imagefile, strerror(errno));
	exit (EXIT_FAILURE);
	}

	/* Setup the image header as per input image type*/
	if (tparams->set_header)
	tparams->set_header (ptr, &sbuf, ifd, &params);
	else {
	fprintf (stderr, "%s: Can't set header for %s: %s\n",
	params.cmdname, tparams->name, strerror(errno));
	exit (EXIT_FAILURE);
	}

	/* Print the image information by processing image header */
	if (tparams->print_header)
	tparams->print_header (ptr);
	else {
	fprintf (stderr, "%s: Can't print header for %s: %s\n",
	params.cmdname, tparams->name, strerror(errno));
	exit (EXIT_FAILURE);
	}

	(void) munmap((void *)ptr, sbuf.st_size);

	/* We're a bit of paranoid */
	#if defined(_POSIX_SYNCHRONIZED_IO) && \
	!defined(__sun__) && \
	!defined(__FreeBSD__) && \
	!defined(__OpenBSD__) && \
	!defined(__APPLE__)
	(void) fdatasync (ifd);
	#else
	(void) fsync (ifd);
	#endif

	if (close(ifd)) {
	fprintf (stderr, "%s: Write error on %s: %s\n",
	params.cmdname, params.imagefile, strerror(errno));
	exit (EXIT_FAILURE);
	}

	exit (EXIT_SUCCESS);
	}

	static void
	copy_file (int ifd, const char *datafile, int pad)
	{
	int dfd;
	struct stat sbuf;
	unsigned char *ptr;
	int tail;
	int zero = 0;
	uint8_t zeros[4096];
	int offset = 0;
	int size;
	struct image_type_params *tparams = imagetool_get_type(params.type);

	memset(zeros, 0, sizeof(zeros));

	if (params.vflag) {
	fprintf (stderr, "Adding Image %s\n", datafile);
	}

	if ((dfd = open(datafile, O_RDONLY\|O_BINARY)) < 0) {
	fprintf (stderr, "%s: Can't open %s: %s\n",
	params.cmdname, datafile, strerror(errno));
	exit (EXIT_FAILURE);
	}

	if (fstat(dfd, &sbuf) < 0) {
	fprintf (stderr, "%s: Can't stat %s: %s\n",
	params.cmdname, datafile, strerror(errno));
	exit (EXIT_FAILURE);
	}

	ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
	if (ptr == MAP_FAILED) {
	fprintf (stderr, "%s: Can't read %s: %s\n",
	params.cmdname, datafile, strerror(errno));
	exit (EXIT_FAILURE);
	}

	if (params.xflag) {
	unsigned char *p = NULL;
	/*
	* XIP: do not append the image_header_t at the
	* beginning of the file, but consume the space
	* reserved for it.
	*/

	if ((unsigned)sbuf.st_size < tparams->header_size) {
	fprintf (stderr,
	"%s: Bad size: \"%s\" is too small for XIP\n",
	params.cmdname, datafile);
	exit (EXIT_FAILURE);
	}

	for (p = ptr; p < ptr + tparams->header_size; p++) {
	if ( *p != 0xff ) {
	fprintf (stderr,
	"%s: Bad file: \"%s\" has invalid buffer for XIP\n",
	params.cmdname, datafile);
	exit (EXIT_FAILURE);
	}
	}

	offset = tparams->header_size;
	}

	size = sbuf.st_size - offset;
	if (write(ifd, ptr + offset, size) != size) {
	fprintf (stderr, "%s: Write error on %s: %s\n",
	params.cmdname, params.imagefile, strerror(errno));
	exit (EXIT_FAILURE);
	}

	tail = size % 4;
	if ((pad == 1) && (tail != 0)) {

	if (write(ifd, (char *)&zero, 4-tail) != 4-tail) {
	fprintf (stderr, "%s: Write error on %s: %s\n",
	params.cmdname, params.imagefile,
	strerror(errno));
	exit (EXIT_FAILURE);
	}
	} else if (pad > 1) {
	while (pad > 0) {
	int todo = sizeof(zeros);

	if (todo > pad)
	todo = pad;
	if (write(ifd, (char *)&zeros, todo) != todo) {
	fprintf(stderr, "%s: Write error on %s: %s\n",
	params.cmdname, params.imagefile,
	strerror(errno));
	exit(EXIT_FAILURE);
	}
	pad -= todo;
	}
	}

	(void) munmap((void *)ptr, sbuf.st_size);
	(void) close (dfd);
	}