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https://github.com/Atmosphere-NX/Atmosphere-libs.git
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72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <mesosphere/kern_common.hpp>
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#include <mesosphere/kern_k_typed_address.hpp>
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namespace ams::kern {
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class KThread;
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}
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namespace ams::kern::arch::arm64 {
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class KThreadContext {
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public:
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static constexpr size_t NumCalleeSavedRegisters = (29 - 19) + 1;
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static constexpr size_t NumFpuRegisters = 32;
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private:
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union {
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u64 registers[NumCalleeSavedRegisters];
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struct {
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u64 x19;
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u64 x20;
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u64 x21;
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u64 x22;
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u64 x23;
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u64 x24;
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u64 x25;
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u64 x26;
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u64 x27;
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u64 x28;
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u64 x29;
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};
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} callee_saved;
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u64 lr;
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u64 sp;
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u64 cpacr;
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u64 fpcr;
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u64 fpsr;
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alignas(0x10) u128 fpu_registers[NumFpuRegisters];
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bool locked;
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private:
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static void RestoreFpuRegisters64(const KThreadContext &);
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static void RestoreFpuRegisters32(const KThreadContext &);
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public:
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constexpr explicit KThreadContext() : callee_saved(), lr(), sp(), cpacr(), fpcr(), fpsr(), fpu_registers(), locked() { /* ... */ }
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Result Initialize(KVirtualAddress u_pc, KVirtualAddress k_sp, KVirtualAddress u_sp, uintptr_t arg, bool is_user, bool is_64_bit, bool is_main);
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Result Finalize();
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void SetArguments(uintptr_t arg0, uintptr_t arg1);
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static void FpuContextSwitchHandler(KThread *thread);
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/* TODO: More methods (especially FPU management) */
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};
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} |