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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef RCC_MC_MCOBJECTWRITER_H
#define RCC_MC_MCOBJECTWRITER_H
#include "rcc/MC/MCSection.h"
#include "rcc/MC/MCSymbol.h"
#include "rcc/Support/Error.h"
#include <cstddef>
#include <cstdint>
#include <optional>
#include <vector>
namespace rcc::mc {
enum class MCObjectSymbolBinding : std::uint8_t {
Local,
Global,
Weak,
};
enum class MCObjectSymbolType : std::uint8_t {
None,
Function,
Object,
TLSObject,
Section,
};
enum class MCObjectSymbolVisibility : std::uint8_t {
Default,
Hidden,
Protected,
};
struct MCObjectRelocation final {
std::uint64_t Offset = 0;
std::uint32_t Type = 0;
MCSymbolRef Symbol;
std::int64_t Addend = 0;
};
struct MCObjectSection final {
MCSectionRef Section;
std::vector<std::uint8_t> Contents;
std::uint64_t AddressSize = 0;
std::uint64_t Alignment = 1;
std::vector<MCObjectRelocation> Relocations;
};
struct MCObjectSymbol final {
MCSymbolRef Symbol;
MCObjectSymbolBinding Binding = MCObjectSymbolBinding::Local;
MCObjectSymbolType Type = MCObjectSymbolType::None;
MCObjectSymbolVisibility Visibility = MCObjectSymbolVisibility::Default;
std::optional<std::size_t> SectionIndex;
std::uint64_t Value = 0;
std::uint64_t Size = 0;
std::uint64_t CommonAlignment = 0;
};
struct MCAssembledObject final {
std::vector<MCObjectSection> Sections;
std::vector<MCObjectSymbol> Symbols;
std::uint32_t Flags = 0;
};
class MCObjectWriter {
public:
virtual ~MCObjectWriter() = default;
[[nodiscard]] virtual Expected<std::vector<std::uint8_t>>
writeObject(const MCAssembledObject &Object) const = 0;
};
} // namespace rcc::mc
#endif // RCC_MC_MCOBJECTWRITER_H
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