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bf8286d15f
- More sensible stack tracer, in C++ (no symbols yet) - Was forgetting to add null frame to new kernel stacks - __kernel_assert was using an old vector - A GP fault will only print its associated table entry
34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
#pragma once
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/// \file gdt.h
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/// Definitions relating to system descriptor tables: GDT, IDT, TSS
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#include <stdint.h>
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/// Set up the GDT and TSS, and switch segment registers to point
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/// to them.
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void gdt_init();
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/// Set an entry in the IDT
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/// \arg i Index in the IDT (vector of the interrupt this handles)
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/// \arg addr Address of the handler
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/// \arg selector GDT selector to set when invoking this handler
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/// \arg flags Descriptor flags to set
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void idt_set_entry(uint8_t i, uint64_t addr, uint16_t selector, uint8_t flags);
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/// Set the stack pointer for a given ring in the TSS
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/// \arg ring Ring to set for (0-2)
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/// \arg rsp Stack pointer to set
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void tss_set_stack(int ring, uintptr_t rsp);
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/// Get the stack pointer for a given ring in the TSS
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/// \arg ring Ring to get (0-2)
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/// \returns Stack pointers for that ring
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uintptr_t tss_get_stack(int ring);
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/// Dump information about the current GDT to the screen
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/// \arg index Which entry to print, or -1 for all entries
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void gdt_dump(int index = -1);
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/// Dump information about the current IDT to the screen
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/// \arg index Which entry to print, or -1 for all entries
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void idt_dump(int index = -1);
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