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kern: devirtualize remaining vcall for class token/dyncast

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This commit is contained in:
Michael Scire 2021-10-23 16:04:04 -07:00
parent 36e4914be8
commit 71e4313d0c
10 changed files with 38 additions and 47 deletions
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27
libraries/libmesosphere/include/mesosphere/kern_k_auto_object.hpp
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@ -22,13 +22,19 @@ namespace ams::kern {
class KProcess;
#if defined(MESOSPHERE_BUILD_FOR_DEBUGGING) || defined(MESOSPHERE_BUILD_FOR_AUDITING)
#define MESOSPHERE_AUTO_OBJECT_TYPENAME_IMPL(CLASS) #CLASS
#else
#define MESOSPHERE_AUTO_OBJECT_TYPENAME_IMPL(CLASS) ""
#endif
#define MESOSPHERE_AUTOOBJECT_TRAITS(CLASS, BASE_CLASS) \
NON_COPYABLE(CLASS); \
NON_MOVEABLE(CLASS); \
private: \
friend class ::ams::kern::KClassTokenGenerator; \
static constexpr inline auto ObjectType = ::ams::kern::KClassTokenGenerator::ObjectType::CLASS; \
static constexpr inline const char * const TypeName = #CLASS; \
static constexpr inline const char * const TypeName = MESOSPHERE_AUTO_OBJECT_TYPENAME_IMPL(CLASS); \
static constexpr inline ClassTokenType ClassToken() { return ::ams::kern::ClassToken<CLASS>; } \
public: \
using BaseClass = BASE_CLASS; \
@ -118,8 +124,6 @@ namespace ams::kern {
#if defined(MESOSPHERE_ENABLE_DEVIRTUALIZED_DYNAMIC_CAST)
ClassTokenType m_class_token;
#endif
public:
static KAutoObject *Create(KAutoObject *ptr);
public:
constexpr ALWAYS_INLINE explicit KAutoObject(util::ConstantInitializeTag) : m_next_closed_object(nullptr), m_ref_count(0)
#if defined(MESOSPHERE_ENABLE_DEVIRTUALIZED_DYNAMIC_CAST)
@ -204,6 +208,23 @@ namespace ams::kern {
public:
/* Getter, for KThread. */
ALWAYS_INLINE KAutoObject *GetNextClosedObject() { return m_next_closed_object; }
public:
template<typename Derived> requires (std::derived_from<Derived, KAutoObject>)
static ALWAYS_INLINE void Create(typename std::type_identity<Derived>::type *obj) {
/* Get auto object pointer. */
KAutoObject &auto_object = *static_cast<KAutoObject *>(obj);
/* If we should, set our class token. */
#if defined(MESOSPHERE_ENABLE_DEVIRTUALIZED_DYNAMIC_CAST)
{
constexpr auto Token = Derived::GetStaticTypeObj().GetClassToken();
auto_object.m_class_token = Token;
}
#endif
/* Initialize reference count to 1. */
auto_object.m_ref_count = 1;
}
};
class KAutoObjectWithListContainer;

4
libraries/libmesosphere/include/mesosphere/kern_k_session_request.hpp
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@ -137,7 +137,7 @@ namespace ams::kern {
static KSessionRequest *Create() {
KSessionRequest *req = KSessionRequest::Allocate();
if (AMS_LIKELY(req != nullptr)) {
KAutoObject::Create(req);
KAutoObject::Create<KSessionRequest>(req);
}
return req;
}
@ -145,7 +145,7 @@ namespace ams::kern {
static KSessionRequest *CreateFromUnusedSlabMemory() {
KSessionRequest *req = KSessionRequest::AllocateFromUnusedSlabMemory();
if (AMS_LIKELY(req != nullptr)) {
KAutoObject::Create(req);
KAutoObject::Create<KSessionRequest>(req);
}
return req;
}

4
libraries/libmesosphere/include/mesosphere/kern_slab_helpers.hpp
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@ -118,7 +118,7 @@ namespace ams::kern {
static Derived *Create() {
Derived *obj = Allocate();
if (AMS_LIKELY(obj != nullptr)) {
KAutoObject::Create(obj);
KAutoObject::Create<Derived>(obj);
}
return obj;
}
@ -130,7 +130,7 @@ namespace ams::kern {
Derived * const obj = GetPointer<Derived>(AllocateUnusedSlabMemory(sizeof(Derived), alignof(Derived)));
if (AMS_LIKELY(obj != nullptr)) {
std::construct_at(obj);
KAutoObject::Create(obj);
KAutoObject::Create<Derived>(obj);
}
return obj;
}

2
libraries/libmesosphere/source/board/nintendo/nx/kern_k_system_control.cpp
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@ -487,7 +487,7 @@ namespace ams::kern::board::nintendo::nx {
{
/* Construct the resource limit object. */
KResourceLimit &sys_res_limit = Kernel::GetSystemResourceLimit();
KAutoObject::Create(std::addressof(sys_res_limit));
KAutoObject::Create<KResourceLimit>(std::addressof(sys_res_limit));
sys_res_limit.Initialize();
/* Set the initial limits. */

30
libraries/libmesosphere/source/kern_k_auto_object.cpp
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@ -1,30 +0,0 @@
/*
* 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/>.
*/
#include <mesosphere.hpp>
namespace ams::kern {
KAutoObject *KAutoObject::Create(KAutoObject *obj) {
obj->m_ref_count = 1;
#if defined(MESOSPHERE_ENABLE_DEVIRTUALIZED_DYNAMIC_CAST)
obj->m_class_token = obj->GetTypeObj().GetClassToken();
#endif
return obj;
}
}

2
libraries/libmesosphere/source/kern_k_event.cpp
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@ -21,7 +21,7 @@ namespace ams::kern {
MESOSPHERE_ASSERT_THIS();
/* Create our readable event. */
KAutoObject::Create(std::addressof(m_readable_event));
KAutoObject::Create<KReadableEvent>(std::addressof(m_readable_event));
/* Initialize our readable event. */
m_readable_event.Initialize(this);

4
libraries/libmesosphere/source/kern_k_light_session.cpp
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@ -27,8 +27,8 @@ namespace ams::kern {
this->Open();
/* Create our sub sessions. */
KAutoObject::Create(std::addressof(m_server));
KAutoObject::Create(std::addressof(m_client));
KAutoObject::Create<KLightServerSession>(std::addressof(m_server));
KAutoObject::Create<KLightClientSession>(std::addressof(m_client));
/* Initialize our sub sessions. */
m_server.Initialize(this);

4
libraries/libmesosphere/source/kern_k_port.cpp
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@ -22,8 +22,8 @@ namespace ams::kern {
this->Open();
/* Create and initialize our server/client pair. */
KAutoObject::Create(std::addressof(m_server));
KAutoObject::Create(std::addressof(m_client));
KAutoObject::Create<KServerPort>(std::addressof(m_server));
KAutoObject::Create<KClientPort>(std::addressof(m_client));
m_server.Initialize(this);
m_client.Initialize(this, max_sessions);

4
libraries/libmesosphere/source/kern_k_session.cpp
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@ -27,8 +27,8 @@ namespace ams::kern {
this->Open();
/* Create our sub sessions. */
KAutoObject::Create(std::addressof(m_server));
KAutoObject::Create(std::addressof(m_client));
KAutoObject::Create<KServerSession>(std::addressof(m_server));
KAutoObject::Create<KClientSession>(std::addressof(m_client));
/* Initialize our sub sessions. */
m_server.Initialize(this);

4
libraries/libmesosphere/source/kern_kernel.cpp
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@ -50,8 +50,8 @@ namespace ams::kern {
void *main_thread_stack = GetVoidPointer(KMemoryLayout::GetMainStackTopAddress(core_id));
KThread *idle_thread = std::addressof(Kernel::GetIdleThread(core_id));
void *idle_thread_stack = GetVoidPointer(KMemoryLayout::GetIdleStackTopAddress(core_id));
KAutoObject::Create(main_thread);
KAutoObject::Create(idle_thread);
KAutoObject::Create<KThread>(main_thread);
KAutoObject::Create<KThread>(idle_thread);
main_thread->Initialize(nullptr, 0, main_thread_stack, 0, KThread::MainThreadPriority, core_id, nullptr, KThread::ThreadType_Main);
idle_thread->Initialize(nullptr, 0, idle_thread_stack, 0, KThread::IdleThreadPriority, core_id, nullptr, KThread::ThreadType_Main);