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/*
* 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.
*/
#pragma once
#include "SoftCPU.h"
#include "SoftMMU.h"
#include <AK/Types.h>
#include <LibELF/Loader.h>
#include <LibX86/Instruction.h>
#include <sys/types.h>
namespace UserspaceEmulator {
class Emulator {
public:
Emulator(const String& executable_path, NonnullRefPtr<ELF::Loader>);
bool load_elf();
void dump_backtrace();
int exec();
u32 virt_syscall(u32 function, u32 arg1, u32 arg2, u32 arg3);
SoftMMU& mmu() { return m_mmu; }
private:
NonnullRefPtr<ELF::Loader> m_elf;
SoftMMU m_mmu;
SoftCPU m_cpu;
void setup_stack();
u32 virt$mmap(u32);
u32 virt$gettid();
u32 virt$getpid();
u32 virt$unveil(u32);
u32 virt$pledge(u32);
uid_t virt$getuid();
gid_t virt$getgid();
u32 virt$read(int, FlatPtr, ssize_t);
u32 virt$write(int, FlatPtr, ssize_t);
u32 virt$mprotect(FlatPtr, size_t, int);
u32 virt$madvise(FlatPtr, size_t, int);
u32 virt$open(u32);
int virt$close(int);
int virt$get_process_name(FlatPtr buffer, int size);
int virt$fstat(int, FlatPtr);
u32 virt$fcntl(int fd, int, u32);
int virt$getgroups(ssize_t count, FlatPtr);
int virt$lseek(int fd, off_t offset, int whence);
void virt$exit(int);
bool m_shutdown { false };
int m_exit_status { 0 };
String m_executable_path;
};
}
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