ladybird/DevTools/UserspaceEmulator/main.cpp
Andreas Kling 1e4c010643 LibELF: Remove ELF::Loader and move everyone to ELF::Image
This commit gets rid of ELF::Loader entirely since its very ambiguous
purpose was actually to load executables for the kernel, and that is
now handled by the kernel itself.

This patch includes some drive-by cleanup in LibDebug and CrashDaemon
enabled by the fact that we no longer need to keep the ref-counted
ELF::Loader around.
2020-12-25 02:14:56 +01:00

82 lines
3.0 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
*/
#include "Emulator.h"
#include "SoftCPU.h"
#include <AK/Format.h>
#include <AK/LexicalPath.h>
#include <AK/MappedFile.h>
#include <AK/StringBuilder.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/DirIterator.h>
#include <LibELF/Image.h>
#include <getopt.h>
#include <pthread.h>
#include <string.h>
bool g_report_to_debug = false;
int main(int argc, char** argv, char** env)
{
Vector<const char*> command;
Core::ArgsParser parser;
parser.add_option(g_report_to_debug, "Write reports to the debug log", "report-to-debug", 0);
parser.add_positional_argument(command, "Command to emulate", "command");
parser.parse(argc, argv);
auto executable_path = Core::find_executable_in_path(command[0]);
Vector<String> arguments;
for (auto arg : command) {
arguments.append(arg);
}
Vector<String> environment;
for (int i = 0; env[i]; ++i) {
environment.append(env[i]);
}
// FIXME: It might be nice to tear down the emulator properly.
auto& emulator = *new UserspaceEmulator::Emulator(executable_path, arguments, environment);
if (!emulator.load_elf())
return 1;
StringBuilder builder;
builder.append("(UE) ");
builder.append(LexicalPath(arguments[0]).basename());
if (set_process_name(builder.string_view().characters_without_null_termination(), builder.string_view().length()) < 0) {
perror("set_process_name");
return 1;
}
int rc = pthread_setname_np(pthread_self(), builder.to_string().characters());
if (rc != 0) {
reportln("pthread_setname_np: {}", strerror(rc));
return 1;
}
return emulator.exec();
}