X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=tools%2Fmkimage.c;h=6abd4d6a8b2210984cd49fb510118b9d300dfe22;hb=145663991fc3f214d88c22d2240ce30d2f987848;hp=8a20594f316e558a63d9511316fadc38f946846d;hpb=5a1b1f36dab86668aaeead61198779d2bca35d2e;p=oweals%2Fu-boot.git diff --git a/tools/mkimage.c b/tools/mkimage.c index 8a20594f31..6abd4d6a8b 100644 --- a/tools/mkimage.c +++ b/tools/mkimage.c @@ -1,261 +1,333 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2008 Semihalf * * (C) Copyright 2000-2009 * DENX Software Engineering * Wolfgang Denk, wd@denx.de - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA */ #include "mkimage.h" +#include "imximage.h" #include +#include static void copy_file(int, const char *, int); -static void usage(void); - -/* image_type_params link list to maintain registered image type supports */ -struct image_type_params *mkimage_tparams = NULL; /* parameters initialized by core will be used by the image type code */ -struct mkimage_params params = { +static 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 = "", }; -/* - * mkimage_register - - * - * It is used to register respective image generation/list support to the - * mkimage core - * - * the input struct image_type_params is checked and appended to the link - * list, if the input structure is already registered, error - */ -void mkimage_register (struct image_type_params *tparams) +static enum ih_category cur_category; + +static int h_compare_category_name(const void *vtype1, const void *vtype2) { - struct image_type_params **tp; + const int *type1 = vtype1; + const int *type2 = vtype2; + const char *name1 = genimg_get_cat_short_name(cur_category, *type1); + const char *name2 = genimg_get_cat_short_name(cur_category, *type2); - if (!tparams) { - fprintf (stderr, "%s: %s: Null input\n", - params.cmdname, __FUNCTION__); - exit (EXIT_FAILURE); - } + return strcmp(name1, name2); +} - /* scan the linked list, check for registry and point the last one */ - for (tp = &mkimage_tparams; *tp != NULL; tp = &(*tp)->next) { - if (!strcmp((*tp)->name, tparams->name)) { - fprintf (stderr, "%s: %s already registered\n", - params.cmdname, tparams->name); - return; - } +static int show_valid_options(enum ih_category category) +{ + int *order; + int count; + int item; + int i; + + count = genimg_get_cat_count(category); + order = calloc(count, sizeof(*order)); + if (!order) + return -ENOMEM; + + /* Sort the names in order of short name for easier reading */ + for (item = 0; item < count; item++) + order[item] = item; + cur_category = category; + qsort(order, count, sizeof(int), h_compare_category_name); + + fprintf(stderr, "\nInvalid %s, supported are:\n", + genimg_get_cat_desc(category)); + for (i = 0; i < count; i++) { + item = order[i]; + fprintf(stderr, "\t%-15s %s\n", + genimg_get_cat_short_name(category, item), + genimg_get_cat_name(category, item)); } + fprintf(stderr, "\n"); + free(order); - /* add input struct entry at the end of link list */ - *tp = tparams; - /* mark input entry as last entry in the link list */ - tparams->next = NULL; - - debug ("Registered %s\n", tparams->name); + return 0; } -/* - * mkimage_get_type - - * - * It scans all registers image type supports - * checks the input type_id for each supported image type - * - * if successful, - * returns respective image_type_params pointer if success - * if input type_id is not supported by any of image_type_support - * returns NULL - */ -struct image_type_params *mkimage_get_type(int type) +static void usage(const char *msg) { - struct image_type_params *curr; + fprintf(stderr, "Error: %s\n", msg); + 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 auto|-F] [-b [-b ]] [-i ] fit-image\n" + " file is used with -f auto, it may occur multiple times.\n", + params.cmdname); + fprintf(stderr, + " -D => set all options for device tree compiler\n" + " -f => input filename for FIT source\n" + " -i => input filename for ramdisk file\n"); +#ifdef CONFIG_FIT_SIGNATURE + fprintf(stderr, + "Signing / verified boot options: [-E] [-k keydir] [-K dtb] [ -c ] [-p addr] [-r] [-N engine]\n" + " -E => place data outside of the FIT structure\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" + " -p => place external data at a static position\n" + " -r => mark keys used as 'required' in dtb\n" + " -N => engine to use for signing (pkcs11)\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 list' to see a list of available image types\n"); - for (curr = mkimage_tparams; curr != NULL; curr = curr->next) { - if (curr->check_image_type) { - if (!curr->check_image_type (type)) - return curr; - } - } - return NULL; + exit(EXIT_FAILURE); } -/* - * mkimage_verify_print_header - - * - * It scans mkimage_tparams link list, - * verifies image_header for each supported image type - * if verification is successful, prints respective header - * - * returns negative if input image format does not match with any of - * supported image types - */ -int mkimage_verify_print_header (void *ptr, struct stat *sbuf) +static int add_content(int type, const char *fname) { - int retval = -1; - struct image_type_params *curr; - - for (curr = mkimage_tparams; curr != NULL; curr = curr->next ) { - if (curr->verify_header) { - retval = curr->verify_header ( - (unsigned char *)ptr, sbuf->st_size, - ¶ms); - - if (retval == 0) { - /* - * Print the image information - * if verify is successful - */ - if (curr->print_header) - curr->print_header (ptr); - else { - fprintf (stderr, - "%s: print_header undefined for %s\n", - params.cmdname, curr->name); - } - break; + struct content_info *cont; + + cont = calloc(1, sizeof(*cont)); + if (!cont) + return -1; + cont->type = type; + cont->fname = fname; + if (params.content_tail) + params.content_tail->next = cont; + else + params.content_head = cont; + params.content_tail = cont; + + return 0; +} + +static void process_args(int argc, char **argv) +{ + char *ptr; + int type = IH_TYPE_INVALID; + char *datafile = NULL; + int opt; + + while ((opt = getopt(argc, argv, + "a:A:b:c:C:d:D:e:Ef:Fk:i:K:ln:N:p:O:rR:qsT: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) { + show_valid_options(IH_ARCH); + usage("Invalid architecture"); + } + break; + case 'b': + if (add_content(IH_TYPE_FLATDT, optarg)) { + fprintf(stderr, + "%s: Out of memory adding content '%s'", + params.cmdname, optarg); + exit(EXIT_FAILURE); + } + break; + case 'c': + params.comment = optarg; + break; + case 'C': + params.comp = genimg_get_comp_id(optarg); + if (params.comp < 0) { + show_valid_options(IH_COMP); + usage("Invalid compression type"); + } + 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 'E': + params.external_data = true; + break; + case 'f': + datafile = optarg; + params.auto_its = !strcmp(datafile, "auto"); + /* 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 'i': + params.fit_ramdisk = optarg; + 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 'N': + params.engine_id = optarg; + break; + case 'O': + params.os = genimg_get_os_id(optarg); + if (params.os < 0) { + show_valid_options(IH_OS); + usage("Invalid operating system"); + } + break; + case 'p': + params.external_offset = strtoull(optarg, &ptr, 16); + if (*ptr) { + fprintf(stderr, "%s: invalid offset size %s\n", + params.cmdname, optarg); + exit(EXIT_FAILURE); } + break; + case 'q': + params.quiet = 1; + 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': + if (strcmp(optarg, "list") == 0) { + show_valid_options(IH_TYPE); + exit(EXIT_SUCCESS); + } + type = genimg_get_type_id(optarg); + if (type < 0) { + show_valid_options(IH_TYPE); + usage("Invalid image type"); + } + 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("Invalid option"); } } - return retval; + + /* The last parameter is expected to be the imagefile */ + if (optind < argc) + params.imagefile = argv[optind]; + + /* + * For auto-generated FIT images we need to know the image type to put + * in the FIT, which is separate from the file's image type (which + * will always be IH_TYPE_FLATDT in this case). + */ + if (params.type == IH_TYPE_FLATDT) { + params.fit_image_type = type ? type : IH_TYPE_KERNEL; + /* For auto_its, datafile is always 'auto' */ + if (!params.auto_its) + params.datafile = datafile; + else if (!params.datafile) + usage("Missing data file for auto-FIT (use -d)"); + } else if (type != IH_TYPE_INVALID) { + if (type == IH_TYPE_SCRIPT && !params.datafile) + usage("Missing data file for script (use -d)"); + params.type = type; + } + + if (!params.imagefile) + usage("Missing output filename"); } -int -main (int argc, char **argv) +int main(int argc, char **argv) { int ifd = -1; struct stat sbuf; - unsigned char *ptr; + char *ptr; int retval = 0; struct image_type_params *tparams = NULL; - - /* Init Kirkwood Boot image generation/list support */ - init_kwb_image_type (); - /* Init FIT image generation/list support */ - init_fit_image_type (); - /* Init Default image generation/list support */ - init_default_image_type (); + int pad_len = 0; + int dfd; + size_t map_len; params.cmdname = *argv; - params.addr = params.ep = 0; - - while (--argc > 0 && **++argv == '-') { - while (*++*argv) { - switch (**argv) { - case 'l': - params.lflag = 1; - break; - case 'A': - if ((--argc <= 0) || - (params.arch = - genimg_get_arch_id (*++argv)) < 0) - usage (); - goto NXTARG; - case 'C': - if ((--argc <= 0) || - (params.comp = - genimg_get_comp_id (*++argv)) < 0) - usage (); - goto NXTARG; - case 'D': - if (--argc <= 0) - usage (); - params.dtc = *++argv; - goto NXTARG; - - case 'O': - if ((--argc <= 0) || - (params.os = - genimg_get_os_id (*++argv)) < 0) - usage (); - goto NXTARG; - case 'T': - if ((--argc <= 0) || - (params.type = - genimg_get_type_id (*++argv)) < 0) - usage (); - goto NXTARG; - - case 'a': - if (--argc <= 0) - usage (); - params.addr = strtoul (*++argv, - (char **)&ptr, 16); - if (*ptr) { - fprintf (stderr, - "%s: invalid load address %s\n", - params.cmdname, *argv); - exit (EXIT_FAILURE); - } - goto NXTARG; - case 'd': - if (--argc <= 0) - usage (); - params.datafile = *++argv; - params.dflag = 1; - goto NXTARG; - case 'e': - if (--argc <= 0) - usage (); - params.ep = strtoul (*++argv, - (char **)&ptr, 16); - if (*ptr) { - fprintf (stderr, - "%s: invalid entry point %s\n", - params.cmdname, *argv); - exit (EXIT_FAILURE); - } - params.eflag = 1; - goto NXTARG; - case 'f': - if (--argc <= 0) - usage (); - params.type = IH_TYPE_FLATDT; - params.datafile = *++argv; - params.fflag = 1; - goto NXTARG; - case 'n': - if (--argc <= 0) - usage (); - params.imagename = *++argv; - goto NXTARG; - case 'v': - params.vflag++; - break; - case 'x': - params.xflag++; - break; - default: - usage (); - } - } -NXTARG: ; - } + params.addr = 0; + params.ep = 0; - if (argc != 1) - usage (); + process_args(argc, argv); /* set tparams as per input type_id */ - tparams = mkimage_get_type(params.type); + tparams = imagetool_get_type(params.type); if (tparams == NULL) { fprintf (stderr, "%s: unsupported type %s\n", params.cmdname, genimg_get_type_name(params.type)); @@ -268,7 +340,7 @@ NXTARG: ; */ if (tparams->check_params) if (tparams->check_params (¶ms)) - usage (); + usage("Bad parameters for image type"); if (!params.eflag) { params.ep = params.addr; @@ -277,39 +349,35 @@ NXTARG: ; params.ep += tparams->header_size; } - /* - * If XIP, ensure the entry point is equal to the load address plus - * the size of the U-Boot header. - */ - if (params.xflag) { - if (params.ep != params.addr + tparams->header_size) { - fprintf (stderr, - "%s: For XIP, the entry point must be the load addr + %lu\n", - params.cmdname, - (unsigned long)tparams->header_size); - exit (EXIT_FAILURE); - } - } + 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(¶ms); - params.imagefile = *argv; + if (retval != EXIT_SUCCESS) + exit (retval); + } - if (!params.fflag){ - if (params.lflag) { - ifd = open (params.imagefile, O_RDONLY|O_BINARY); - } else { - ifd = open (params.imagefile, - O_RDWR|O_CREAT|O_TRUNC|O_BINARY, 0666); - } + 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 (ifd < 0) { + fprintf (stderr, "%s: Can't open %s: %s\n", + params.cmdname, params.imagefile, + strerror(errno)); + exit (EXIT_FAILURE); } - if (params.lflag) { + if (params.lflag || params.fflag) { /* * list header information of existing image */ @@ -341,31 +409,45 @@ NXTARG: ; * Print the image information for matched image type * Returns the error code if not matched */ - retval = mkimage_verify_print_header (ptr, &sbuf); + retval = imagetool_verify_print_header(ptr, &sbuf, + tparams, ¶ms); (void) munmap((void *)ptr, sbuf.st_size); (void) close (ifd); exit (retval); - } else 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(¶ms); + } - 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); } /* - * Must be -w then: - * - * write dummy header, to be fixed later + * 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. */ - memset (tparams->hdr, 0, tparams->header_size); + if (tparams->vrec_header) + pad_len = tparams->vrec_header(¶ms, tparams); + else + memset(tparams->hdr, 0, tparams->header_size); if (write(ifd, tparams->hdr, tparams->header_size) != tparams->header_size) { @@ -374,69 +456,114 @@ NXTARG: ; exit (EXIT_FAILURE); } - 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 (!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 (stat (file, &sbuf) < 0) { - fprintf (stderr, "%s: Can't stat %s: %s\n", - params.cmdname, file, strerror(errno)); + 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); } - 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 (!file) { - break; + if (sep) { + *sep = ':'; + file = sep + 1; + } else { + file = NULL; + } } - 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, ¶ms); + } else if (params.type == IH_TYPE_ZYNQMPBIF) { + /* Image file is meta, walk through actual targets */ + int ret; + + ret = zynqmpbif_copy_image(ifd, ¶ms); + if (ret) + return ret; + } else { + copy_file(ifd, params.datafile, pad_len); } - - 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; + if (params.type == IH_TYPE_FIRMWARE_IVT) { + /* Add alignment and IVT */ + uint32_t aligned_filesize = (params.file_size + 0x1000 + - 1) & ~(0x1000 - 1); + flash_header_v2_t ivt_header = { { 0xd1, 0x2000, 0x40 }, + params.addr, 0, 0, 0, params.addr + + aligned_filesize + - tparams->header_size, + params.addr + aligned_filesize + - tparams->header_size + + 0x20, 0 }; + int i = params.file_size; + for (; i < aligned_filesize; i++) { + if (write(ifd, (char *) &i, 1) != 1) { + fprintf(stderr, + "%s: Write error on %s: %s\n", + params.cmdname, + params.imagefile, + strerror(errno)); + exit(EXIT_FAILURE); + } + } + if (write(ifd, &ivt_header, sizeof(flash_header_v2_t)) + != sizeof(flash_header_v2_t)) { + fprintf(stderr, "%s: Write error on %s: %s\n", + params.cmdname, + params.imagefile, + strerror(errno)); + exit(EXIT_FAILURE); } } - } else { - copy_file (ifd, params.datafile, 0); } /* We're a bit of paranoid */ #if defined(_POSIX_SYNCHRONIZED_IO) && \ !defined(__sun__) && \ !defined(__FreeBSD__) && \ + !defined(__OpenBSD__) && \ !defined(__APPLE__) (void) fdatasync (ifd); #else @@ -448,8 +575,10 @@ NXTARG: ; 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); + map_len = sbuf.st_size; + ptr = mmap(0, map_len, 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)); @@ -469,17 +598,17 @@ NXTARG: ; 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); + fprintf (stderr, "%s: Can't print header for %s\n", + params.cmdname, tparams->name); } - (void) munmap((void *)ptr, sbuf.st_size); + (void)munmap((void *)ptr, map_len); /* We're a bit of paranoid */ #if defined(_POSIX_SYNCHRONIZED_IO) && \ !defined(__sun__) && \ !defined(__FreeBSD__) && \ + !defined(__OpenBSD__) && \ !defined(__APPLE__) (void) fdatasync (ifd); #else @@ -503,9 +632,12 @@ copy_file (int ifd, const char *datafile, int pad) unsigned char *ptr; int tail; int zero = 0; + uint8_t zeros[4096]; int offset = 0; int size; - struct image_type_params *tparams = mkimage_get_type (params.type); + 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); @@ -564,7 +696,8 @@ copy_file (int ifd, const char *datafile, int pad) exit (EXIT_FAILURE); } - if (pad && ((tail = size % 4) != 0)) { + 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", @@ -572,32 +705,22 @@ copy_file (int ifd, const char *datafile, int pad) 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); } - -void -usage () -{ - 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 fit-image\n", - params.cmdname); - - exit (EXIT_FAILURE); -}