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Kernel: Remove reduntant kernel/user signal stacks.

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Due to the changes in signal handling m_kernel_stack_for_signal_handler_region
and m_signal_stack_user_region are no longer necessary, and so, have been
removed. I've also removed the similarly reduntant m_tss_to_resume_kernel.
This commit is contained in:
Drew Stratford 2019-09-06 22:50:12 +12:00 • committed by Andreas Kling
parent dfb538a413
commit e529042895
4 changed files with 1 additions and 10 deletions
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4
Kernel/Thread.h
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@ -281,7 +281,6 @@ public:
u32 kernel_stack_base() const { return m_kernel_stack_base; }
u32 kernel_stack_top() const { return m_kernel_stack_top; }
u32 kernel_stack_for_signal_handler_base() const { return m_kernel_stack_for_signal_handler_region ? m_kernel_stack_for_signal_handler_region->vaddr().get() : 0; }
void set_selector(u16 s) { m_far_ptr.selector = s; }
void set_state(State);
@ -332,7 +331,6 @@ private:
Process& m_process;
int m_tid { -1 };
TSS32 m_tss;
OwnPtr<TSS32> m_tss_to_resume_kernel;
FarPtr m_far_ptr;
u32 m_ticks { 0 };
u32 m_ticks_left { 0 };
@ -343,10 +341,8 @@ private:
u32 m_kernel_stack_top { 0 };
RefPtr<Region> m_userspace_stack_region;
RefPtr<Region> m_kernel_stack_region;
RefPtr<Region> m_kernel_stack_for_signal_handler_region;
VirtualAddress m_thread_specific_data;
SignalActionData m_signal_action_data[32];
Region* m_signal_stack_user_region { nullptr };
IntrusiveList<Blocker, &Blocker::m_blocker_list_node> m_blockers;
FPUState* m_fpu_state { nullptr };
State m_state { Invalid };