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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef RCC_MC_MCDWARFFRAMEEMITTER_H
#define RCC_MC_MCDWARFFRAMEEMITTER_H
#include "rcc/MC/MCAsmBackend.h"
#include "rcc/MC/MCCFI.h"
#include "rcc/MC/MCObjectWriter.h"
#include "rcc/Support/Error.h"
#include <cstdint>
#include <span>
#include <vector>
namespace rcc::mc {
struct MCDwarfFrameInfo final {
std::uint64_t CodeAlignment = 1;
std::int64_t DataAlignment = -8;
std::uint32_t ReturnAddressRegister = 0;
std::uint32_t InitialCFARegister = 0;
std::uint64_t InitialCFAOffset = 0;
[[nodiscard]] Expected<void> verify() const;
};
struct MCDwarfFrameInstruction final {
MCCFIInstruction Instruction;
std::uint64_t Offset = 0;
};
struct MCDwarfFrameProcedure final {
MCSymbolRef Function;
std::uint64_t AddressRange = 0;
std::vector<MCDwarfFrameInstruction> Instructions;
};
[[nodiscard]] Expected<MCObjectSection>
emitDwarfEHFrame(MCSectionRef Section, std::span<const MCDwarfFrameProcedure> Procedures,
const MCDwarfFrameInfo &Info, const MCAsmBackend &Backend);
} // namespace rcc::mc
#endif // RCC_MC_MCDWARFFRAMEEMITTER_H
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