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tools/fit_info.c
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/* * (C) Copyright 2014 * DENX Software Engineering * Heiko Schocher <hs@denx.de> * * fit_info: print the offset and the len of a property from * node in a fit file. * * Based on: * (C) Copyright 2008 Semihalf * * (C) Copyright 2000-2004 * DENX Software Engineering * Wolfgang Denk, wd@denx.de * * Updated-by: Prafulla Wadaskar <prafulla@marvell.com> * FIT image specific code abstracted from mkimage.c * some functions added to address abstraction * * All rights reserved. * * SPDX-License-Identifier: GPL-2.0+ */ #include "mkimage.h" #include "fit_common.h" #include <image.h> #include <u-boot/crc.h> void usage(char *cmdname) { fprintf(stderr, "Usage: %s -f fit file -n node -p property " " -f ==> set fit file which is used' " " -n ==> set node name' " " -p ==> set property name' ", cmdname); exit(EXIT_FAILURE); } int main(int argc, char **argv) { int ffd = -1; struct stat fsbuf; void *fit_blob; int len; int nodeoffset; /* node offset from libfdt */ const void *nodep; /* property node pointer */ char *fdtfile = NULL; char *nodename = NULL; char *propertyname = NULL; char cmdname[256]; int c; strncpy(cmdname, *argv, sizeof(cmdname) - 1); cmdname[sizeof(cmdname) - 1] = '\0'; while ((c = getopt(argc, argv, "f:n:p:")) != -1) switch (c) { case 'f': fdtfile = optarg; break; case 'n': nodename = optarg; break; case 'p': propertyname = optarg; break; default: usage(cmdname); break; } if (!fdtfile) { fprintf(stderr, "%s: Missing fdt file ", *argv); usage(*argv); } if (!nodename) { fprintf(stderr, "%s: Missing node name ", *argv); usage(*argv); } if (!propertyname) { fprintf(stderr, "%s: Missing property name ", *argv); usage(*argv); } ffd = mmap_fdt(cmdname, fdtfile, 0, &fit_blob, &fsbuf, false); if (ffd < 0) { printf("Could not open %s ", fdtfile); exit(EXIT_FAILURE); } nodeoffset = fdt_path_offset(fit_blob, nodename); if (nodeoffset < 0) { printf("%s not found.", nodename); exit(EXIT_FAILURE); } nodep = fdt_getprop(fit_blob, nodeoffset, propertyname, &len); if (len == 0) { printf("len == 0 %s ", propertyname); exit(EXIT_FAILURE); } printf("NAME: %s ", fit_get_name(fit_blob, nodeoffset, NULL)); printf("LEN: %d ", len); printf("OFF: %d ", (int)(nodep - fit_blob)); (void) munmap((void *)fit_blob, fsbuf.st_size); close(ffd); exit(EXIT_SUCCESS); } |