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kern: avoid constexpr init for many objects (avoids unnecessary memory clear) (#1668)

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SciresM 2021-10-23 15:25:20 -07:00 • committed by GitHub
parent 20716cb3de
commit 36e4914be8
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77 changed files with 489 additions and 339 deletions
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19
libraries/libmesosphere/include/mesosphere/kern_k_capabilities.hpp
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@ -171,14 +171,14 @@ namespace ams::kern {
CapabilityFlag<CapabilityType::HandleTable> |
CapabilityFlag<CapabilityType::DebugFlags>;
private:
svc::SvcAccessFlagSet m_svc_access_flags{};
InterruptFlagSet m_irq_access_flags{};
u64 m_core_mask{};
u64 m_priority_mask{};
util::BitPack32 m_debug_capabilities{0};
s32 m_handle_table_size{};
util::BitPack32 m_intended_kernel_version{0};
u32 m_program_type{};
svc::SvcAccessFlagSet m_svc_access_flags;
InterruptFlagSet m_irq_access_flags;
u64 m_core_mask;
u64 m_priority_mask;
util::BitPack32 m_debug_capabilities;
s32 m_handle_table_size;
util::BitPack32 m_intended_kernel_version;
u32 m_program_type;
private:
constexpr bool SetSvcAllowed(u32 id) {
if (AMS_LIKELY(id < m_svc_access_flags.GetCount())) {
@ -213,7 +213,8 @@ namespace ams::kern {
Result SetCapabilities(const u32 *caps, s32 num_caps, KProcessPageTable *page_table);
Result SetCapabilities(svc::KUserPointer<const u32 *> user_caps, s32 num_caps, KProcessPageTable *page_table);
public:
constexpr KCapabilities() = default;
constexpr explicit KCapabilities(util::ConstantInitializeTag) : m_svc_access_flags{}, m_irq_access_flags{}, m_core_mask{}, m_priority_mask{}, m_debug_capabilities{0}, m_handle_table_size{}, m_intended_kernel_version{}, m_program_type{} { /* ... */ }
KCapabilities() { /* ... */ }
Result Initialize(const u32 *caps, s32 num_caps, KProcessPageTable *page_table);
Result Initialize(svc::KUserPointer<const u32 *> user_caps, s32 num_caps, KProcessPageTable *page_table);