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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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4
libraries/libmesosphere/source/board/nintendo/nx/kern_k_device_page_table.cpp
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@@ -345,8 +345,8 @@ namespace ams::kern::board::nintendo::nx {
/* Globals. */
constinit KLightLock g_lock;
constinit u8 g_reserved_asid;
constinit KPhysicalAddress g_memory_controller_address;
constinit KPhysicalAddress g_reserved_table_phys_addr;
constinit KPhysicalAddress g_memory_controller_address{Null<KPhysicalAddress>};
constinit KPhysicalAddress g_reserved_table_phys_addr{Null<KPhysicalAddress>};
constinit KDeviceAsidManager g_asid_manager;
constinit u32 g_saved_page_tables[AsidCount];
constinit u32 g_saved_asid_registers[ams::svc::DeviceName_Count];

2
libraries/libmesosphere/source/board/nintendo/nx/kern_k_sleep_manager.cpp
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@@ -66,7 +66,7 @@ namespace ams::kern::board::nintendo::nx {
constinit u64 g_sleep_target_cores;
constinit KLightLock g_request_lock;
constinit KLightLock g_cv_lock;
constinit KLightConditionVariable g_cv;
constinit KLightConditionVariable g_cv{util::ConstantInitialize};
constinit KPhysicalAddress g_sleep_buffer_phys_addrs[cpu::NumCores];
alignas(1_KB) constinit u64 g_sleep_buffers[cpu::NumCores][1_KB / sizeof(u64)];
constinit SavedSystemRegisters g_sleep_system_registers[cpu::NumCores] = {};

2
libraries/libmesosphere/source/board/nintendo/nx/kern_k_system_control.cpp
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@@ -43,7 +43,7 @@ namespace ams::kern::board::nintendo::nx {
/* To save space (and because mt19337_t isn't secure anyway), */
/* We will use TinyMT. */
constinit bool g_initialized_random_generator;
constinit util::TinyMT g_random_generator;
constinit util::TinyMT g_random_generator{util::ConstantInitialize};
constinit KSpinLock g_random_lock;
ALWAYS_INLINE size_t GetRealMemorySizeForInit() {