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kern: allocate the shadow stack

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This commit is contained in:
Alula
2026-09-17 16:27:44 +02:00
parent f40b85cd5d
commit 4e917d700f
3 changed files with 40 additions and 1 deletions
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3
libraries/libmesosphere/include/mesosphere/kern_k_memory_block.hpp
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@@ -119,6 +119,8 @@ namespace ams::kern {
KMemoryState_Insecure = ams::svc::MemoryState_Insecure | KMemoryState_FlagMapped | KMemoryState_FlagReferenceCounted | KMemoryState_FlagLinearMapped | KMemoryState_FlagCanChangeAttribute
| KMemoryState_FlagCanDeviceMap | KMemoryState_FlagCanAlignedDeviceMap | KMemoryState_FlagCanQueryPhysical
| KMemoryState_FlagCanUseNonSecureIpc | KMemoryState_FlagCanUseNonDeviceIpc,
KMemoryState_ShadowStack = ams::svc::MemoryState_ShadowStack,
};
#if 1
@@ -147,6 +149,7 @@ namespace ams::kern {
static_assert(KMemoryState_CodeOut == 0x04402015);
static_assert(KMemoryState_Coverage == 0x00002016); /* TODO: Is this correct? */
static_assert(KMemoryState_Insecure == 0x055C3817);
static_assert(KMemoryState_ShadowStack == 0x0000001A);
#endif
enum KMemoryPermission : u8 {

5
libraries/libmesosphere/include/mesosphere/kern_k_thread.hpp
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@@ -29,6 +29,7 @@ namespace ams::kern {
class KProcess;
class KConditionVariable;
class KAddressArbiter;
class KPageBuffer;
using KThreadFunction = void (*)(uintptr_t);
@@ -305,6 +306,8 @@ namespace ams::kern {
u32 *m_light_ipc_data;
KProcessAddress m_tls_address;
void *m_tls_heap_address;
KProcessAddress m_shadow_stack_address;
KPageBuffer *m_shadow_stack_page;
KLightLock m_activity_pause_lock;
SyncObjectBuffer m_sync_object_buffer;
s64 m_schedule_count;
@@ -347,7 +350,7 @@ namespace ams::kern {
: KAutoObjectWithSlabHeapAndContainer<KThread, KWorkerTask>(util::ConstantInitialize), KTimerTask(util::ConstantInitialize),
m_process_list_node{}, m_condvar_arbiter_tree_node{util::ConstantInitialize}, m_priority{-1}, m_condvar_tree{}, m_condvar_key{},
m_caller_save_fpu_registers{}, m_virtual_affinity_mask{}, m_physical_affinity_mask{}, m_thread_id{}, m_cpu_time{0}, m_address_key{Null<KProcessAddress>}, m_parent{},
m_kernel_stack_top{}, m_light_ipc_data{}, m_tls_address{Null<KProcessAddress>}, m_tls_heap_address{}, m_activity_pause_lock{}, m_sync_object_buffer{util::ConstantInitialize},
m_kernel_stack_top{}, m_light_ipc_data{}, m_tls_address{Null<KProcessAddress>}, m_tls_heap_address{}, m_shadow_stack_address{Null<KProcessAddress>}, m_shadow_stack_page{}, m_activity_pause_lock{}, m_sync_object_buffer{util::ConstantInitialize},
m_schedule_count{}, m_last_scheduled_tick{}, m_per_core_priority_queue_entry{}, m_wait_queue{}, m_held_lock_info_list{}, m_waiting_lock_info{},
m_pinned_waiter_list{}, m_debug_params{}, m_closed_object{}, m_address_key_value{}, m_suspend_request_flags{}, m_suspend_allowed_flags{}, m_synced_index{},
m_wait_result{svc::ResultNoSynchronizationObject()}, m_debug_exception_result{ResultSuccess()}, m_base_priority{}, m_base_priority_on_unpin{},