freebsd-dev/usr.bin/dtc/dtc.cc

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