mirror of
https://github.com/Atmosphere-NX/Atmosphere-libs.git
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89 lines
3.4 KiB
C++
89 lines
3.4 KiB
C++
/*
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* Copyright (c) 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 <stratosphere.hpp>
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#include "os_thread_manager.hpp"
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namespace ams::os::impl {
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class DebugHorizonImpl {
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public:
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static uintptr_t GetCurrentStackPointer() {
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uintptr_t v;
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__asm__ __volatile__("mov %[v], sp" : [v]"=&r"(v) :: "memory");
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return v;
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}
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static void GetCurrentStackInfo(uintptr_t *out_stack, size_t *out_size) {
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/* Check pre-conditions. */
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AMS_ASSERT(out_stack != nullptr);
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AMS_ASSERT(out_size != nullptr);
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/* Get the current thread. */
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auto *cur_thread = os::impl::GetCurrentThread();
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auto *cur_fiber = cur_thread->current_fiber;
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/* Get the current stack pointer. */
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uintptr_t cur_sp = GetCurrentStackPointer();
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/* Determine current stack extents, TODO Fiber */
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uintptr_t stack_top = reinterpret_cast<uintptr_t>(cur_fiber == nullptr ? cur_thread->stack : /* TODO: cur_fiber->stack */ nullptr);
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size_t stack_size = reinterpret_cast<size_t>(cur_fiber == nullptr ? cur_thread->stack_size : /* TODO: cur_fiber->stack_size */ 0);
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uintptr_t stack_bottom = stack_top + stack_size;
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/* TODO: User exception handler, check if stack is out of range and use exception stack. */
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/* Check that the stack pointer is in bounds. */
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AMS_ABORT_UNLESS((stack_top <= cur_sp) && (cur_sp < stack_bottom));
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/* Set the output. */
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*out_stack = stack_top;
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*out_size = stack_size;
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}
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static void QueryMemoryInfo(os::MemoryInfo *out) {
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AMS_UNUSED(out);
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AMS_ABORT("TODO: Horizon QueryMemoryInfo");
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}
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static Tick GetIdleTickCount() {
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u64 value;
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R_ABORT_UNLESS(svc::GetInfo(std::addressof(value), svc::InfoType_IdleTickCount, svc::InvalidHandle, static_cast<u64>(-1)));
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return os::Tick(value);
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}
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static Tick GetThreadTickCount() {
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u64 value;
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R_ABORT_UNLESS(svc::GetInfo(std::addressof(value), svc::InfoType_ThreadTickCount, svc::PseudoHandle::CurrentThread, static_cast<u64>(-1)));
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return os::Tick(value);
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}
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static int GetFreeThreadCount() {
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u64 value;
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R_ABORT_UNLESS(svc::GetInfo(std::addressof(value), svc::InfoType_FreeThreadCount, svc::PseudoHandle::CurrentProcess, 0));
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AMS_ASSERT(value <= static_cast<u64>(std::numeric_limits<int>::max()));
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return static_cast<int>(value);
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}
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};
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using DebugImpl = DebugHorizonImpl;
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} |