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Kernel: Rename Thread::tss to Thread::regs and add x86_64 support

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We're using software context switches so calling this struct tss is
somewhat misleading.
This commit is contained in:
Gunnar Beutner 2021-06-26 19:57:16 +02:00 • committed by Andreas Kling
parent eba33f82b8
commit f285241cb8
14 changed files with 246 additions and 204 deletions
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13
Kernel/Arch/x86/common/Processor.cpp
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@ -489,14 +489,10 @@ Vector<FlatPtr> Processor::capture_stack_trace(Thread& thread, size_t max_frames
// pushed the callee-saved registers, and the last of them happens
// to be ebp.
ProcessPagingScope paging_scope(thread.process());
auto& tss = thread.tss();
u32* stack_top;
#if ARCH(I386)
stack_top = reinterpret_cast<u32*>(tss.esp);
#else
(void)tss;
TODO();
#endif
auto& regs = thread.regs();
u32* stack_top;
stack_top = reinterpret_cast<u32*>(regs.esp);
if (is_user_range(VirtualAddress(stack_top), sizeof(FlatPtr))) {
if (!copy_from_user(&frame_ptr, &((FlatPtr*)stack_top)[0]))
frame_ptr = 0;
@ -505,8 +501,7 @@ Vector<FlatPtr> Processor::capture_stack_trace(Thread& thread, size_t max_frames
if (!safe_memcpy(&frame_ptr, &((FlatPtr*)stack_top)[0], sizeof(FlatPtr), fault_at))
frame_ptr = 0;
}
#if ARCH(I386)
eip = tss.eip;
eip = regs.eip;
#else
TODO();
#endif