Atmosphere/libraries/libmesosphere/include/mesosphere/arch/arm64/kern_k_debug.hpp

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/*
* Copyright (c) Atmosphère-NX
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*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <mesosphere/kern_common.hpp>
#include <mesosphere/kern_select_cpu.hpp>
#include <mesosphere/kern_k_debug_base.hpp>
namespace ams::kern {
class KThread;
class KProcess;
}
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namespace ams::kern::arch::arm64 {
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class KDebug final : public KAutoObjectWithSlabHeapAndContainer<KDebug, KDebugBase> {
MESOSPHERE_AUTOOBJECT_TRAITS(KDebug, KSynchronizationObject);
public:
explicit KDebug() { /* ... */ }
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static void PostDestroy(uintptr_t arg) { MESOSPHERE_UNUSED(arg); /* ... */ }
public:
virtual Result GetThreadContextImpl(ams::svc::ThreadContext *out, KThread *thread, u32 context_flags) override;
virtual Result SetThreadContextImpl(const ams::svc::ThreadContext &ctx, KThread *thread, u32 context_flags) override;
private:
Result GetFpuContext(ams::svc::ThreadContext *out, KThread *thread, u32 context_flags);
Result SetFpuContext(const ams::svc::ThreadContext &ctx, KThread *thread, u32 context_flags);
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public:
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static uintptr_t GetProgramCounter(const KThread &thread);
static void SetPreviousProgramCounter();
static void PrintRegister(KThread *thread = nullptr);
static void PrintBacktrace(KThread *thread = nullptr);
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static Result BreakIfAttached(ams::svc::BreakReason break_reason, uintptr_t address, size_t size);
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static Result SetHardwareBreakPoint(ams::svc::HardwareBreakPointRegisterName name, u64 flags, u64 value);
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static constexpr bool IsBreakInstruction(u32 insn, u32 psr) {
constexpr u32 BreakInstructionAarch64 = 0xE7FFFFFF;
constexpr u32 BreakInstructionAarch32 = 0xE7FFDEFE;
constexpr u32 BreakInstructionThumb32 = 0xB68E;
if ((psr & 0x10) == 0) {
return insn == BreakInstructionAarch64;
} else {
if ((psr & 0x20) == 0) {
return insn == BreakInstructionAarch32;
} else {
return insn == BreakInstructionThumb32;
}
}
}
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};
}