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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;