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https://github.com/RGBCube/serenity
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UserspaceEmulator: Move SimpleRegion to its own files
This commit is contained in:
parent
4d3787ae33
commit
3d42b85969
4 changed files with 133 additions and 56 deletions
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@ -1,7 +1,8 @@
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set(SOURCES
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Emulator.cpp
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SimpleRegion.cpp
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SoftCPU.cpp
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SoftMMU.cpp
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Emulator.cpp
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main.cpp
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)
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@ -25,6 +25,7 @@
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*/
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#include "Emulator.h"
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#include "SimpleRegion.h"
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#include "SoftCPU.h"
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#include <AK/LexicalPath.h>
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#include <AK/LogStream.h>
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@ -43,61 +44,6 @@ namespace UserspaceEmulator {
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static constexpr u32 stack_location = 0x10000000;
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static constexpr size_t stack_size = 64 * KB;
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class SimpleRegion final : public SoftMMU::Region {
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public:
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SimpleRegion(u32 base, u32 size)
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: Region(base, size)
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{
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m_data = (u8*)calloc(1, size);
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}
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~SimpleRegion()
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{
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free(m_data);
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}
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virtual u8 read8(u32 offset) override
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{
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ASSERT(offset < size());
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return *reinterpret_cast<const u8*>(m_data + offset);
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}
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virtual u16 read16(u32 offset) override
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{
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ASSERT(offset + 1 < size());
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return *reinterpret_cast<const u16*>(m_data + offset);
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}
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virtual u32 read32(u32 offset) override
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{
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ASSERT(offset + 3 < size());
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return *reinterpret_cast<const u32*>(m_data + offset);
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}
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virtual void write8(u32 offset, u8 value) override
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{
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ASSERT(offset < size());
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*reinterpret_cast<u8*>(m_data + offset) = value;
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}
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virtual void write16(u32 offset, u16 value) override
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{
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ASSERT(offset + 1 < size());
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*reinterpret_cast<u16*>(m_data + offset) = value;
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}
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virtual void write32(u32 offset, u32 value) override
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{
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ASSERT(offset + 3 < size());
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*reinterpret_cast<u32*>(m_data + offset) = value;
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}
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u8* data() { return m_data; }
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private:
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u8* m_data { nullptr };
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};
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Emulator::Emulator(const String& executable_path, NonnullRefPtr<ELF::Loader> elf)
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: m_elf(move(elf))
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, m_cpu(*this)
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78
DevTools/UserspaceEmulator/SimpleRegion.cpp
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78
DevTools/UserspaceEmulator/SimpleRegion.cpp
Normal file
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@ -0,0 +1,78 @@
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/*
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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 "SimpleRegion.h"
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namespace UserspaceEmulator {
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SimpleRegion::SimpleRegion(u32 base, u32 size)
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: Region(base, size)
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{
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m_data = (u8*)calloc(1, size);
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}
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SimpleRegion::~SimpleRegion()
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{
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free(m_data);
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}
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u8 SimpleRegion::read8(FlatPtr offset)
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{
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ASSERT(offset < size());
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return *reinterpret_cast<const u8*>(m_data + offset);
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}
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u16 SimpleRegion::read16(u32 offset)
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{
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ASSERT(offset + 1 < size());
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return *reinterpret_cast<const u16*>(m_data + offset);
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}
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u32 SimpleRegion::read32(u32 offset)
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{
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ASSERT(offset + 3 < size());
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return *reinterpret_cast<const u32*>(m_data + offset);
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}
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void SimpleRegion::write8(u32 offset, u8 value)
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{
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ASSERT(offset < size());
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*reinterpret_cast<u8*>(m_data + offset) = value;
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}
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void SimpleRegion::write16(u32 offset, u16 value)
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{
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ASSERT(offset + 1 < size());
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*reinterpret_cast<u16*>(m_data + offset) = value;
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}
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void SimpleRegion::write32(u32 offset, u32 value)
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{
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ASSERT(offset + 3 < size());
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*reinterpret_cast<u32*>(m_data + offset) = value;
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}
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}
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52
DevTools/UserspaceEmulator/SimpleRegion.h
Normal file
52
DevTools/UserspaceEmulator/SimpleRegion.h
Normal file
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@ -0,0 +1,52 @@
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/*
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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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#pragma once
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#include "SoftMMU.h"
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namespace UserspaceEmulator {
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class SimpleRegion final : public SoftMMU::Region {
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public:
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SimpleRegion(u32 base, u32 size);
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virtual ~SimpleRegion() override;
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virtual u8 read8(u32 offset) override;
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virtual u16 read16(u32 offset) override;
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virtual u32 read32(u32 offset) override;
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virtual void write8(u32 offset, u8 value) override;
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virtual void write16(u32 offset, u16 value) override;
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virtual void write32(u32 offset, u32 value) override;
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u8* data() { return m_data; }
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private:
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u8* m_data { nullptr };
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};
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}
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