From fb4b3c127f7c390358d7f4cadd2f58de116fec48 Mon Sep 17 00:00:00 2001 From: Liam Date: Mon, 30 May 2022 19:35:01 -0400 Subject: core/debugger: Implement new GDB stub debugger --- src/core/debugger/gdbstub_arch.h | 67 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 src/core/debugger/gdbstub_arch.h (limited to 'src/core/debugger/gdbstub_arch.h') diff --git a/src/core/debugger/gdbstub_arch.h b/src/core/debugger/gdbstub_arch.h new file mode 100644 index 000000000..e943848e5 --- /dev/null +++ b/src/core/debugger/gdbstub_arch.h @@ -0,0 +1,67 @@ +// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#pragma once + +#include + +#include "common/common_types.h" + +namespace Kernel { +class KThread; +} + +namespace Core { + +class GDBStubArch { +public: + virtual std::string GetTargetXML() const = 0; + virtual std::string RegRead(const Kernel::KThread* thread, size_t id) const = 0; + virtual void RegWrite(Kernel::KThread* thread, size_t id, std::string_view value) const = 0; + virtual std::string ReadRegisters(const Kernel::KThread* thread) const = 0; + virtual void WriteRegisters(Kernel::KThread* thread, std::string_view register_data) const = 0; + virtual std::string ThreadStatus(const Kernel::KThread* thread, u8 signal) const = 0; + virtual u32 BreakpointInstruction() const = 0; +}; + +class GDBStubA64 final : public GDBStubArch { +public: + std::string GetTargetXML() const override; + std::string RegRead(const Kernel::KThread* thread, size_t id) const override; + void RegWrite(Kernel::KThread* thread, size_t id, std::string_view value) const override; + std::string ReadRegisters(const Kernel::KThread* thread) const override; + void WriteRegisters(Kernel::KThread* thread, std::string_view register_data) const override; + std::string ThreadStatus(const Kernel::KThread* thread, u8 signal) const override; + u32 BreakpointInstruction() const override; + +private: + static constexpr u32 LR_REGISTER = 30; + static constexpr u32 SP_REGISTER = 31; + static constexpr u32 PC_REGISTER = 32; + static constexpr u32 PSTATE_REGISTER = 33; + static constexpr u32 Q0_REGISTER = 34; + static constexpr u32 FPCR_REGISTER = 66; + static constexpr u32 FPSR_REGISTER = 67; +}; + +class GDBStubA32 final : public GDBStubArch { +public: + std::string GetTargetXML() const override; + std::string RegRead(const Kernel::KThread* thread, size_t id) const override; + void RegWrite(Kernel::KThread* thread, size_t id, std::string_view value) const override; + std::string ReadRegisters(const Kernel::KThread* thread) const override; + void WriteRegisters(Kernel::KThread* thread, std::string_view register_data) const override; + std::string ThreadStatus(const Kernel::KThread* thread, u8 signal) const override; + u32 BreakpointInstruction() const override; + +private: + static constexpr u32 SP_REGISTER = 13; + static constexpr u32 LR_REGISTER = 14; + static constexpr u32 PC_REGISTER = 15; + static constexpr u32 CPSR_REGISTER = 25; + static constexpr u32 D0_REGISTER = 32; + static constexpr u32 Q0_REGISTER = 64; + static constexpr u32 FPSCR_REGISTER = 80; +}; + +} // namespace Core -- cgit v1.2.3