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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Main driver of the dexdump utility.
*
* This is a re-implementation of the original dexdump utility that was
* based on Dalvik functions in libdex into a new dexdump that is now
* based on Art functions in libart instead. The output is very similar to
* to the original for correct DEX files. Error messages may differ, however.
* Also, ODEX files are no longer supported.
*/
#include "dexdump.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <android-base/logging.h>
namespace art {
static const char* gProgName = "dexdump";
/*
* Shows usage.
*/
static void usage() {
LOG(ERROR) << "Copyright (C) 2007 The Android Open Source Project\n";
LOG(ERROR) << gProgName << ": [-a] [-c] [-d] [-e] [-f] [-h] [-i] [-j] [-l layout] [-o outfile]"
" dexfile...\n";
LOG(ERROR) << " -a : display annotations";
LOG(ERROR) << " -c : verify checksum and exit";
LOG(ERROR) << " -d : disassemble code sections";
LOG(ERROR) << " -e : display exported items only";
LOG(ERROR) << " -f : display summary information from file header";
LOG(ERROR) << " -g : display CFG for dex";
LOG(ERROR) << " -h : display file header details";
LOG(ERROR) << " -i : ignore checksum failures";
LOG(ERROR) << " -j : disable dex file verification";
LOG(ERROR) << " -l : output layout, either 'plain' or 'xml'";
LOG(ERROR) << " -o : output file name (defaults to stdout)";
}
/*
* Main driver of the dexdump utility.
*/
int dexdumpDriver(int argc, char** argv) {
// Reset options.
bool wantUsage = false;
memset(&gOptions, 0, sizeof(gOptions));
gOptions.verbose = true;
// Parse all arguments.
while (true) {
const int ic = getopt(argc, argv, "acdefghijl:o:");
if (ic < 0) {
break; // done
}
switch (ic) {
case 'a': // display annotations
gOptions.showAnnotations = true;
break;
case 'c': // verify the checksum then exit
gOptions.checksumOnly = true;
break;
case 'd': // disassemble Dalvik instructions
gOptions.disassemble = true;
break;
case 'e': // exported items only
gOptions.exportsOnly = true;
break;
case 'f': // display outer file header
gOptions.showFileHeaders = true;
break;
case 'g': // display cfg
gOptions.showCfg = true;
break;
case 'h': // display section headers, i.e. all meta-data
gOptions.showSectionHeaders = true;
break;
case 'i': // continue even if checksum is bad
gOptions.ignoreBadChecksum = true;
break;
case 'j': // disable dex file verification
gOptions.disableVerifier = true;
break;
case 'l': // layout
if (strcmp(optarg, "plain") == 0) {
gOptions.outputFormat = OUTPUT_PLAIN;
} else if (strcmp(optarg, "xml") == 0) {
gOptions.outputFormat = OUTPUT_XML;
gOptions.verbose = false;
} else {
wantUsage = true;
}
break;
case 'o': // output file
gOptions.outputFileName = optarg;
break;
default:
wantUsage = true;
break;
} // switch
} // while
// Detect early problems.
if (optind == argc) {
LOG(ERROR) << "No file specified";
wantUsage = true;
}
if (gOptions.checksumOnly && gOptions.ignoreBadChecksum) {
LOG(ERROR) << "Can't specify both -c and -i";
wantUsage = true;
}
if (wantUsage) {
usage();
return 2;
}
// Open alternative output file.
if (gOptions.outputFileName) {
gOutFile = fopen(gOptions.outputFileName, "w");
if (!gOutFile) {
PLOG(ERROR) << "Can't open " << gOptions.outputFileName;
return 1;
}
}
// Process all files supplied on command line.
int result = 0;
while (optind < argc) {
result |= processFile(argv[optind++]);
} // while
return result != 0 ? 1 : 0;
}
} // namespace art
int main(int argc, char** argv) {
// Output all logging to stderr.
android::base::SetLogger(android::base::StderrLogger);
return art::dexdumpDriver(argc, argv);
}
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