abort/error: print backtrace, abuse templates, overhaul result/diag (macos not done yet)

libraries/libstratosphere/source/os/impl/os_debug_impl.os.horizon.hpp

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