ac_bool test_interrupts(void) {
ac_bool error = AC_FALSE;
descriptor_ptr idtr;
get_idt(&idtr);
error |= AC_TEST(idtr.limit != 0);
error |= AC_TEST(idtr.iig != 0);
// Test we can set an interrupt handler and invoke it
set_intr_handler(79, intr_79);
print_idt_intr_gate("idt[79]:", get_idt_intr_gate(79));
idt_intr_gate *g = get_idt_intr_gate(79);
error |= AC_TEST(GET_IDT_INTR_GATE_OFFSET(*g) == (ac_uptr)intr_79);
intr_79_counter = 0;
ac_printf("invoke intr(79)\n");
intr(79);
ac_printf("done intr(79)\n");
error |= AC_TEST(intr_79_counter == 1);
return error;
}
AC_ATTR_INTR_HDLR
static void expt_general_protection(IntrFrame *frame, ac_uint error_code) {
__asm__ volatile(""::: "rax", "rbx", "rcx", "rdx", "rsi", "rdi", // "rbp", rbp is already saved
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15");
print_full_expt_stack_frame("#GP13", frame);
expt_general_protection_counter += 1;
ac_printf(" expt_general_protection_counter: %d\n", expt_general_protection_counter);
IdtPtr idtp;
get_idt(&idtp);
ac_printf(" idt.limit=%d\n", idtp.limit);
ac_printf(" idt.iig=%p\n", idtp.iig);
reset_x86();
}