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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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32
libraries/libmesosphere/include/mesosphere/kern_k_memory_block.hpp
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@@ -349,28 +349,30 @@ namespace ams::kern {
};
}
public:
constexpr KMemoryBlock()
: m_device_disable_merge_left_count(), m_device_disable_merge_right_count(), m_address(), m_num_pages(), m_memory_state(KMemoryState_None), m_ipc_lock_count(), m_device_use_count(), m_ipc_disable_merge_count(), m_permission(), m_original_permission(), m_attribute(), m_disable_merge_attribute()
{
/* ... */
}
explicit KMemoryBlock() { /* ... */ }
constexpr KMemoryBlock(KProcessAddress addr, size_t np, KMemoryState ms, KMemoryPermission p, KMemoryAttribute attr)
: m_device_disable_merge_left_count(), m_device_disable_merge_right_count(), m_address(addr), m_num_pages(np), m_memory_state(ms), m_ipc_lock_count(0), m_device_use_count(0), m_ipc_disable_merge_count(), m_permission(p), m_original_permission(KMemoryPermission_None), m_attribute(attr), m_disable_merge_attribute()
constexpr KMemoryBlock(util::ConstantInitializeTag, KProcessAddress addr, size_t np, KMemoryState ms, KMemoryPermission p, KMemoryAttribute attr)
: util::IntrusiveRedBlackTreeBaseNode<KMemoryBlock>(util::ConstantInitialize), m_device_disable_merge_left_count(),
m_device_disable_merge_right_count(), m_address(addr), m_num_pages(np), m_memory_state(ms), m_ipc_lock_count(0),
m_device_use_count(0), m_ipc_disable_merge_count(), m_permission(p), m_original_permission(KMemoryPermission_None),
m_attribute(attr), m_disable_merge_attribute()
{
/* ... */
}
constexpr void Initialize(KProcessAddress addr, size_t np, KMemoryState ms, KMemoryPermission p, KMemoryAttribute attr) {
MESOSPHERE_ASSERT_THIS();
m_address = addr;
m_num_pages = np;
m_memory_state = ms;
m_ipc_lock_count = 0;
m_device_use_count = 0;
m_permission = p;
m_original_permission = KMemoryPermission_None;
m_attribute = attr;
m_device_disable_merge_left_count = 0;
m_device_disable_merge_right_count = 0;
m_address = addr;
m_num_pages = np;
m_memory_state = ms;
m_ipc_lock_count = 0;
m_device_use_count = 0;
m_permission = p;
m_original_permission = KMemoryPermission_None;
m_attribute = attr;
m_disable_merge_attribute = KMemoryBlockDisableMergeAttribute_None;
}
constexpr bool HasProperties(KMemoryState s, KMemoryPermission p, KMemoryAttribute a) const {