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Diffstat (limited to '')
-rw-r--r-- | src/core/hle/kernel/code_set.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/core/hle/kernel/code_set.h b/src/core/hle/kernel/code_set.h new file mode 100644 index 000000000..834fd23d2 --- /dev/null +++ b/src/core/hle/kernel/code_set.h @@ -0,0 +1,90 @@ +// Copyright 2019 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <cstddef> +#include <memory> +#include <vector> + +#include "common/common_types.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. + std::shared_ptr<std::vector<u8>> 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 |