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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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18
libraries/libmesosphere/source/kern_k_capabilities.cpp
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@ -19,7 +19,12 @@ namespace ams::kern {
Result KCapabilities::Initialize(const u32 *caps, s32 num_caps, KProcessPageTable *page_table) {
/* We're initializing an initial process. */
/* Most fields have already been cleared by our constructor. */
m_svc_access_flags.Reset();
m_irq_access_flags.Reset();
m_debug_capabilities = {0};
m_handle_table_size = 0;
m_intended_kernel_version = {0};
m_program_type = 0;
/* Initial processes may run on all cores. */
m_core_mask = cpu::VirtualCoreMask;
@ -38,7 +43,16 @@ namespace ams::kern {
Result KCapabilities::Initialize(svc::KUserPointer<const u32 *> user_caps, s32 num_caps, KProcessPageTable *page_table) {
/* We're initializing a user process. */
/* Most fields have already been cleared by our constructor. */
m_svc_access_flags.Reset();
m_irq_access_flags.Reset();
m_debug_capabilities = {0};
m_handle_table_size = 0;
m_intended_kernel_version = {0};
m_program_type = 0;
/* User processes must specify what cores/priorities they can use. */
m_core_mask = 0;
m_priority_mask = 0;
/* Parse the user capabilities array. */
return this->SetCapabilities(user_caps, num_caps, page_table);