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

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This commit is contained in:
SciresM
2021-10-23 15:25:20 -07:00
committed by GitHub
parent 20716cb3de
commit 36e4914be8
77 changed files with 489 additions and 339 deletions
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91
libraries/libmesosphere/include/mesosphere/kern_k_page_table_base.hpp
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@@ -144,45 +144,60 @@ namespace ams::kern {
PageLinkedList *GetPageList() { return std::addressof(m_ll); }
};
private:
KProcessAddress m_address_space_start{};
KProcessAddress m_address_space_end{};
KProcessAddress m_heap_region_start{};
KProcessAddress m_heap_region_end{};
KProcessAddress m_current_heap_end{};
KProcessAddress m_alias_region_start{};
KProcessAddress m_alias_region_end{};
KProcessAddress m_stack_region_start{};
KProcessAddress m_stack_region_end{};
KProcessAddress m_kernel_map_region_start{};
KProcessAddress m_kernel_map_region_end{};
KProcessAddress m_alias_code_region_start{};
KProcessAddress m_alias_code_region_end{};
KProcessAddress m_code_region_start{};
KProcessAddress m_code_region_end{};
size_t m_max_heap_size{};
size_t m_mapped_physical_memory_size{};
size_t m_mapped_unsafe_physical_memory{};
size_t m_mapped_ipc_server_memory{};
mutable KLightLock m_general_lock{};
mutable KLightLock m_map_physical_memory_lock{};
KLightLock m_device_map_lock{};
KPageTableImpl m_impl{};
KMemoryBlockManager m_memory_block_manager{};
u32 m_allocate_option{};
u32 m_address_space_width{};
bool m_is_kernel{};
bool m_enable_aslr{};
bool m_enable_device_address_space_merge{};
KMemoryBlockSlabManager *m_memory_block_slab_manager{};
KBlockInfoManager *m_block_info_manager{};
KResourceLimit *m_resource_limit{};
const KMemoryRegion *m_cached_physical_linear_region{};
const KMemoryRegion *m_cached_physical_heap_region{};
MemoryFillValue m_heap_fill_value{};
MemoryFillValue m_ipc_fill_value{};
MemoryFillValue m_stack_fill_value{};
KProcessAddress m_address_space_start;
KProcessAddress m_address_space_end;
KProcessAddress m_heap_region_start;
KProcessAddress m_heap_region_end;
KProcessAddress m_current_heap_end;
KProcessAddress m_alias_region_start;
KProcessAddress m_alias_region_end;
KProcessAddress m_stack_region_start;
KProcessAddress m_stack_region_end;
KProcessAddress m_kernel_map_region_start;
KProcessAddress m_kernel_map_region_end;
KProcessAddress m_alias_code_region_start;
KProcessAddress m_alias_code_region_end;
KProcessAddress m_code_region_start;
KProcessAddress m_code_region_end;
size_t m_max_heap_size;
size_t m_mapped_physical_memory_size;
size_t m_mapped_unsafe_physical_memory;
size_t m_mapped_ipc_server_memory;
mutable KLightLock m_general_lock;
mutable KLightLock m_map_physical_memory_lock;
KLightLock m_device_map_lock;
KPageTableImpl m_impl;
KMemoryBlockManager m_memory_block_manager;
u32 m_allocate_option;
u32 m_address_space_width;
bool m_is_kernel;
bool m_enable_aslr;
bool m_enable_device_address_space_merge;
KMemoryBlockSlabManager *m_memory_block_slab_manager;
KBlockInfoManager *m_block_info_manager;
KResourceLimit *m_resource_limit;
const KMemoryRegion *m_cached_physical_linear_region;
const KMemoryRegion *m_cached_physical_heap_region;
MemoryFillValue m_heap_fill_value;
MemoryFillValue m_ipc_fill_value;
MemoryFillValue m_stack_fill_value;
public:
constexpr KPageTableBase() { /* ... */ }
constexpr explicit KPageTableBase(util::ConstantInitializeTag)
: m_address_space_start(Null<KProcessAddress>), m_address_space_end(Null<KProcessAddress>), m_heap_region_start(Null<KProcessAddress>),
m_heap_region_end(Null<KProcessAddress>), m_current_heap_end(Null<KProcessAddress>), m_alias_region_start(Null<KProcessAddress>),
m_alias_region_end(Null<KProcessAddress>), m_stack_region_start(Null<KProcessAddress>), m_stack_region_end(Null<KProcessAddress>),
m_kernel_map_region_start(Null<KProcessAddress>), m_kernel_map_region_end(Null<KProcessAddress>), m_alias_code_region_start(Null<KProcessAddress>),
m_alias_code_region_end(Null<KProcessAddress>), m_code_region_start(Null<KProcessAddress>), m_code_region_end(Null<KProcessAddress>),
m_max_heap_size(), m_mapped_physical_memory_size(), m_mapped_unsafe_physical_memory(), m_mapped_ipc_server_memory(), m_general_lock(),
m_map_physical_memory_lock(), m_device_map_lock(), m_impl(util::ConstantInitialize), m_memory_block_manager(util::ConstantInitialize),
m_allocate_option(), m_address_space_width(), m_is_kernel(), m_enable_aslr(), m_enable_device_address_space_merge(),
m_memory_block_slab_manager(), m_block_info_manager(), m_resource_limit(), m_cached_physical_linear_region(), m_cached_physical_heap_region(),
m_heap_fill_value(), m_ipc_fill_value(), m_stack_fill_value()
{
/* ... */
}
explicit KPageTableBase() { /* ... */ }
NOINLINE Result InitializeForKernel(bool is_64_bit, void *table, KVirtualAddress start, KVirtualAddress end);
NOINLINE Result InitializeForProcess(ams::svc::CreateProcessFlag as_type, bool enable_aslr, bool enable_device_address_space_merge, bool from_back, KMemoryManager::Pool pool, void *table, KProcessAddress start, KProcessAddress end, KProcessAddress code_address, size_t code_size, KMemoryBlockSlabManager *mem_block_slab_manager, KBlockInfoManager *block_info_manager, KResourceLimit *resource_limit);