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a61be311da
remove the definition of idt & idt_reg in 'idt.h', which is included by 2 files and causes multiple definition. Definite the variable idt & idt_reg here to solve the problem.
22 lines
569 B
C
22 lines
569 B
C
#include "idt.h"
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#include "../kernel/util.h"
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#define IDT_ENTRIES 256
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idt_gate_t idt[IDT_ENTRIES];
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idt_register_t idt_reg;
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void set_idt_gate(int n, u32 handler) {
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idt[n].low_offset = low_16(handler);
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idt[n].sel = KERNEL_CS;
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idt[n].always0 = 0;
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idt[n].flags = 0x8E;
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idt[n].high_offset = high_16(handler);
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}
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void set_idt() {
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idt_reg.base = (u32) &idt;
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idt_reg.limit = IDT_ENTRIES * sizeof(idt_gate_t) - 1;
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/* Don't make the mistake of loading &idt -- always load &idt_reg */
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__asm__ __volatile__("lidtl (%0)" : : "r" (&idt_reg));
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}
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