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kern: write thread handle to tls +0x110 on creation

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This commit is contained in:
Alula
2026-03-17 10:59:11 +01:00
parent 9cc82c6f80
commit 0ee6277be9
4 changed files with 10 additions and 2 deletions
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3
libraries/libmesosphere/source/kern_k_process.cpp
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@@ -976,6 +976,9 @@ namespace ams::kern {
/* Set the thread arguments. */
main_thread->GetContext().SetArguments(0, thread_handle);
/* Pass the thread handle to the thread local region. */
static_cast<ams::svc::ThreadLocalRegion *>(main_thread->GetThreadLocalRegionHeapAddress())->thread_handle = thread_handle;
/* Update our state. */
this->ChangeState((state == State_Created) ? State_Running : State_RunningAttached);
ON_RESULT_FAILURE_2 { this->ChangeState(state); };

3
libraries/libmesosphere/source/svc/kern_svc_thread.cpp
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@@ -66,6 +66,9 @@ namespace ams::kern::svc {
/* Add the thread to the handle table. */
R_TRY(process.GetHandleTable().Add(out, thread));
/* Pass the thread handle to the thread local region. */
static_cast<ams::svc::ThreadLocalRegion *>(thread->GetThreadLocalRegionHeapAddress())->thread_handle = *out;
R_SUCCEED();
}

3
libraries/libvapours/include/vapours/svc/arch/arm/svc_thread_local_region.hpp
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@@ -27,8 +27,9 @@ namespace ams::svc::arch::arm {
volatile u16 interrupt_flag;
volatile u8 cache_maintenance_flag;
volatile s64 thread_cpu_time;
volatile ams::svc::Handle thread_handle;
/* TODO: Should we bother adding the Nintendo aarch32 thread local context here? */
uintptr_t TODO[(0x200 - 0x110) / sizeof(uintptr_t)];
uintptr_t TODO[(0x200 - 0x114) / sizeof(uintptr_t)];
};
ALWAYS_INLINE ThreadLocalRegion *GetThreadLocalRegion() {

3
libraries/libvapours/include/vapours/svc/arch/arm64/svc_thread_local_region.hpp
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@@ -27,8 +27,9 @@ namespace ams::svc::arch::arm64 {
volatile u16 interrupt_flag;
volatile u8 cache_maintenance_flag;
volatile s64 thread_cpu_time;
volatile ams::svc::Handle thread_handle;
/* TODO: How should we handle libnx vs Nintendo user thread local space? */
uintptr_t TODO[(0x200 - 0x110) / sizeof(uintptr_t)];
uintptr_t TODO[(0x200 - 0x114) / sizeof(uintptr_t)];
};
static_assert(__builtin_offsetof(ThreadLocalRegion, disable_count) == 0x100);
static_assert(__builtin_offsetof(ThreadLocalRegion, interrupt_flag) == 0x102);