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https://github.com/RGBCube/serenity
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72ca45e300
When loading dynamic objects, the emulator loads the interpreter, generates an auxiliary vector and starts executing the loader. Additionally, this commits also makes the MallocTracer and backtrace symbolication work for dynamically loaded programs.
81 lines
3 KiB
C++
81 lines
3 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND 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 ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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 OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "Emulator.h"
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#include "SoftCPU.h"
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#include <AK/Format.h>
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#include <AK/LexicalPath.h>
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#include <AK/MappedFile.h>
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#include <AK/StringBuilder.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/DirIterator.h>
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#include <LibELF/Loader.h>
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#include <getopt.h>
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#include <pthread.h>
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#include <string.h>
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bool g_report_to_debug = false;
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int main(int argc, char** argv, char** env)
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{
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Vector<const char*> command;
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Core::ArgsParser parser;
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parser.add_option(g_report_to_debug, "Write reports to the debug log", "report-to-debug", 0);
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parser.add_positional_argument(command, "Command to emulate", "command");
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parser.parse(argc, argv);
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auto executable_path = Core::find_executable_in_path(command[0]);
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Vector<String> arguments;
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for (auto arg : command) {
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arguments.append(arg);
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}
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Vector<String> environment;
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for (int i = 0; env[i]; ++i) {
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environment.append(env[i]);
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}
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// FIXME: It might be nice to tear down the emulator properly.
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auto& emulator = *new UserspaceEmulator::Emulator(executable_path, arguments, environment);
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if (!emulator.load_elf())
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return 1;
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StringBuilder builder;
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builder.append("(UE) ");
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builder.append(LexicalPath(arguments[0]).basename());
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if (set_process_name(builder.string_view().characters_without_null_termination(), builder.string_view().length()) < 0) {
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perror("set_process_name");
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return 1;
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}
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int rc = pthread_setname_np(pthread_self(), builder.to_string().characters());
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if (rc != 0) {
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reportln("pthread_setname_np: {}", strerror(rc));
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return 1;
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}
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return emulator.exec();
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}
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