From 6bf4ca076f8c7a3c1c5abd1cbb059516f7af15df Mon Sep 17 00:00:00 2001 From: Heiko Schocher Date: Mon, 3 Mar 2014 12:19:29 +0100 Subject: tools, fit: add fit_info host command add fit_info command to the host tools. This command prints the name, offset and the len from a property from a node in a fit file. This info can be used to extract a properties data with linux tools, for example "dd". Signed-off-by: Heiko Schocher Acked-by: Simon Glass --- tools/fit_info.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 tools/fit_info.c (limited to 'tools/fit_info.c') diff --git a/tools/fit_info.c b/tools/fit_info.c new file mode 100644 index 0000000000..50f3c8edf1 --- /dev/null +++ b/tools/fit_info.c @@ -0,0 +1,96 @@ +/* + * (C) Copyright 2014 + * DENX Software Engineering + * Heiko Schocher + * + * 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 + * 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 +#include + +void usage(char *cmdname) +{ + fprintf(stderr, "Usage: %s -f fit file -n node -p property\n" + " -f ==> set fit file which is used'\n" + " -n ==> set node name'\n" + " -p ==> set property name'\n", + 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[50]; + int c; + + strcpy(cmdname, *argv); + 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; + } + + ffd = mmap_fdt(cmdname, fdtfile, &fit_blob, &fsbuf, 0); + + if (ffd < 0) { + printf("Could not open %s\n", 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\n", propertyname); + exit(EXIT_FAILURE); + } + + printf("NAME: %s\n", fit_get_name(fit_blob, nodeoffset, NULL)); + printf("LEN: %d\n", len); + printf("OFF: %d\n", (int)(nodep - fit_blob)); + (void) munmap((void *)fit_blob, fsbuf.st_size); + + close(ffd); + exit(EXIT_SUCCESS); +} -- cgit v1.2.1