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// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <cstddef>
#include "common/common_types.h"
#include "core/hle/kernel/physical_memory.h"
namespace Kernel {
/**
* Represents executable data that may be loaded into a kernel process.
*
* A code set consists of three basic segments:
* - A code (AKA text) segment,
* - A read-only data segment (rodata)
* - A data segment
*
* The code segment is the portion of the object file that contains
* executable instructions.
*
* The read-only data segment in the portion of the object file that
* contains (as one would expect) read-only data, such as fixed constant
* values and data structures.
*
* The data segment is similar to the read-only data segment -- it contains
* variables and data structures that have predefined values, however,
* entities within this segment can be modified.
*/
struct CodeSet final {
/// A single segment within a code set.
struct Segment final {
/// The byte offset that this segment is located at.
std::size_t offset = 0;
/// The address to map this segment to.
VAddr addr = 0;
/// The size of this segment in bytes.
u32 size = 0;
};
explicit CodeSet();
~CodeSet();
CodeSet(const CodeSet&) = delete;
CodeSet& operator=(const CodeSet&) = delete;
CodeSet(CodeSet&&) = default;
CodeSet& operator=(CodeSet&&) = default;
Segment& CodeSegment() {
return segments[0];
}
const Segment& CodeSegment() const {
return segments[0];
}
Segment& RODataSegment() {
return segments[1];
}
const Segment& RODataSegment() const {
return segments[1];
}
Segment& DataSegment() {
return segments[2];
}
const Segment& DataSegment() const {
return segments[2];
}
/// The overall data that backs this code set.
Kernel::PhysicalMemory memory;
/// The segments that comprise this code set.
std::array<Segment, 3> segments;
/// The entry point address for this code set.
VAddr entrypoint = 0;
};
} // namespace Kernel
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