ca84c67cd0
Highlights of this update:
- /__local_fixups__ is now generated to be GPL dtc and libfdt compliant
- Compiling with -@ will now cause dtc to assign phandles to all labelled
nodes
- /include/ and /incbin/ now handle absolute paths correctly
- The manpage now has information about overlays, including how to apply
them and how to generate them
- Syntactic sugar for overlays is now supported, allowing an overlay DTS
like:
=
/dts-v1/;
/plugin/;
&foo {
foo,status = "okay";
};
=
to generate a fragment targetting <&foo>.
360 lines
8.2 KiB
C++
360 lines
8.2 KiB
C++
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2013 David Chisnall
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* All rights reserved.
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
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* ("CTSRD"), as part of the DARPA CRASH research programme.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/resource.h>
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#include <fcntl.h>
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#include <libgen.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include "fdt.hh"
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#include "checking.hh"
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#include "util.hh"
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using namespace dtc;
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using std::string;
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namespace {
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/**
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* The current major version of the tool.
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*/
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int version_major = 0;
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int version_major_compatible = 1;
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/**
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* The current minor version of the tool.
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*/
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int version_minor = 5;
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int version_minor_compatible = 4;
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/**
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* The current patch level of the tool.
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*/
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int version_patch = 0;
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int version_patch_compatible = 0;
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void usage(const string &argv0)
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{
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fprintf(stderr, "Usage:\n"
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"\t%s\t[-fhsv@] [-b boot_cpu_id] [-d dependency_file]"
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"[-E [no-]checker_name]\n"
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"\t\t[-H phandle_format] [-I input_format]"
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"[-O output_format]\n"
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"\t\t[-o output_file] [-R entries] [-S bytes] [-p bytes]"
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"[-V blob_version]\n"
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"\t\t-W [no-]checker_name] input_file\n", basename(argv0).c_str());
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}
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/**
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* Prints the current version of this program..
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*/
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void version(const char* progname)
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{
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fprintf(stdout, "Version: %s %d.%d.%d compatible with gpl dtc %d.%d.%d\n", progname,
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version_major, version_minor, version_patch,
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version_major_compatible, version_minor_compatible,
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version_patch_compatible);
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}
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} // Anonymous namespace
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using fdt::device_tree;
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int
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main(int argc, char **argv)
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{
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int ch;
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int outfile = fileno(stdout);
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const char *outfile_name = "-";
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const char *in_file = "-";
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FILE *depfile = 0;
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bool debug_mode = false;
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auto write_fn = &device_tree::write_binary;
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auto read_fn = &device_tree::parse_dts;
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uint32_t boot_cpu;
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bool boot_cpu_specified = false;
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bool keep_going = false;
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bool sort = false;
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clock_t c0 = clock();
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class device_tree tree;
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fdt::checking::check_manager checks;
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const char *options = "@hqI:O:o:V:d:R:S:p:b:fi:svH:W:E:DP:";
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// Don't forget to update the man page if any more options are added.
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while ((ch = getopt(argc, argv, options)) != -1)
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{
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switch (ch)
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{
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case 'h':
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usage(argv[0]);
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return EXIT_SUCCESS;
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case 'v':
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version(argv[0]);
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return EXIT_SUCCESS;
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case '@':
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tree.write_symbols = true;
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break;
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case 'I':
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{
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string arg(optarg);
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if (arg == "dtb")
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{
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read_fn = &device_tree::parse_dtb;
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}
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else if (arg == "dts")
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{
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read_fn = &device_tree::parse_dts;
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}
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else
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{
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fprintf(stderr, "Unknown input format: %s\n", optarg);
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return EXIT_FAILURE;
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}
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break;
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}
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case 'O':
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{
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string arg(optarg);
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if (arg == "dtb")
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{
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write_fn = &device_tree::write_binary;
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}
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else if (arg == "asm")
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{
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write_fn = &device_tree::write_asm;
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}
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else if (arg == "dts")
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{
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write_fn = &device_tree::write_dts;
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}
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else
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{
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fprintf(stderr, "Unknown output format: %s\n", optarg);
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return EXIT_FAILURE;
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}
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break;
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}
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case 'o':
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{
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outfile_name = optarg;
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outfile = open(optarg, O_CREAT | O_TRUNC | O_WRONLY, 0666);
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if (outfile == -1)
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{
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perror("Unable to open output file");
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return EXIT_FAILURE;
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}
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break;
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}
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case 'D':
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debug_mode = true;
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break;
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case 'V':
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if (string(optarg) != "17")
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{
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fprintf(stderr, "Unknown output format version: %s\n", optarg);
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return EXIT_FAILURE;
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}
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break;
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case 'd':
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{
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if (depfile != 0)
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{
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fclose(depfile);
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}
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if (string(optarg) == "-")
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{
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depfile = stdout;
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}
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else
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{
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depfile = fdopen(open(optarg, O_CREAT | O_TRUNC | O_WRONLY, 0666), "w");
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if (depfile == 0)
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{
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perror("Unable to open dependency file");
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return EXIT_FAILURE;
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}
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}
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break;
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}
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case 'H':
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{
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string arg(optarg);
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if (arg == "both")
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{
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tree.set_phandle_format(device_tree::BOTH);
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}
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else if (arg == "epapr")
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{
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tree.set_phandle_format(device_tree::EPAPR);
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}
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else if (arg == "linux")
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{
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tree.set_phandle_format(device_tree::LINUX);
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}
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else
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{
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fprintf(stderr, "Unknown phandle format: %s\n", optarg);
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return EXIT_FAILURE;
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}
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break;
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}
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case 'b':
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// Don't bother to check if strtoll fails, just
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// use the 0 it returns.
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boot_cpu = (uint32_t)strtoll(optarg, 0, 10);
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boot_cpu_specified = true;
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break;
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case 'f':
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keep_going = true;
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break;
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case 'W':
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case 'E':
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{
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string arg(optarg);
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if ((arg.size() > 3) && (strncmp(optarg, "no-", 3) == 0))
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{
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arg = string(optarg+3);
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if (!checks.disable_checker(arg))
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{
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fprintf(stderr, "Checker %s either does not exist or is already disabled\n", optarg+3);
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}
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break;
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}
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if (!checks.enable_checker(arg))
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{
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fprintf(stderr, "Checker %s either does not exist or is already enabled\n", optarg);
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}
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break;
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}
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case 's':
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{
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sort = true;
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break;
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}
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case 'i':
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{
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tree.add_include_path(optarg);
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break;
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}
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// Should quiet warnings, but for now is silently ignored.
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case 'q':
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break;
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case 'R':
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tree.set_empty_reserve_map_entries(strtoll(optarg, 0, 10));
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break;
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case 'S':
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tree.set_blob_minimum_size(strtoll(optarg, 0, 10));
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break;
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case 'p':
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tree.set_blob_padding(strtoll(optarg, 0, 10));
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break;
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case 'P':
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if (!tree.parse_define(optarg))
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{
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fprintf(stderr, "Invalid predefine value %s\n",
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optarg);
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}
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break;
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default:
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fprintf(stderr, "Unknown option %c\n", ch);
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return EXIT_FAILURE;
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}
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}
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if (optind < argc)
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{
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in_file = argv[optind];
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}
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if (depfile != 0)
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{
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fputs(outfile_name, depfile);
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fputs(": ", depfile);
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fputs(in_file, depfile);
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}
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clock_t c1 = clock();
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(tree.*read_fn)(in_file, depfile);
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// Override the boot CPU found in the header, if we're loading from dtb
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if (boot_cpu_specified)
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{
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tree.set_boot_cpu(boot_cpu);
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}
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if (sort)
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{
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tree.sort();
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}
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if (depfile != 0)
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{
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putc('\n', depfile);
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fclose(depfile);
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}
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if (!(tree.is_valid() || keep_going))
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{
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fprintf(stderr, "Failed to parse tree.\n");
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return EXIT_FAILURE;
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}
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clock_t c2 = clock();
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if (!(checks.run_checks(&tree, true) || keep_going))
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{
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return EXIT_FAILURE;
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}
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clock_t c3 = clock();
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(tree.*write_fn)(outfile);
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close(outfile);
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clock_t c4 = clock();
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if (debug_mode)
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{
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struct rusage r;
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getrusage(RUSAGE_SELF, &r);
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fprintf(stderr, "Peak memory usage: %ld bytes\n", r.ru_maxrss);
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fprintf(stderr, "Setup and option parsing took %f seconds\n",
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((double)(c1-c0))/CLOCKS_PER_SEC);
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fprintf(stderr, "Parsing took %f seconds\n",
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((double)(c2-c1))/CLOCKS_PER_SEC);
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fprintf(stderr, "Checking took %f seconds\n",
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((double)(c3-c2))/CLOCKS_PER_SEC);
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fprintf(stderr, "Generating output took %f seconds\n",
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((double)(c4-c3))/CLOCKS_PER_SEC);
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fprintf(stderr, "Total time: %f seconds\n",
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((double)(c4-c0))/CLOCKS_PER_SEC);
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// This is not needed, but keeps valgrind quiet.
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fclose(stdin);
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}
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return EXIT_SUCCESS;
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}
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