Function log_illegal_instruction

freebsd/mips/mips/trap.c:1398–1444

}

static void
log_illegal_instruction(const char *msg, struct trapframe *frame)
{
	pt_entry_t *ptep;
	pd_entry_t *pdep;
	unsigned int *addr, instr[4];
	struct thread *td;
	struct proc *p;
	register_t pc;

	td = curthread;
	p = td->td_proc;

#ifdef SMP
	printf("cpuid = %d\n", PCPU_GET(cpuid));
#endif
	pc = frame->pc + (DELAYBRANCH(frame->cause) ? 4 : 0);
	log(LOG_ERR, "%s: pid %d tid %ld (%s), uid %d: pc %#jx ra %#jx\n",
	    msg, p->p_pid, (long)td->td_tid, p->p_comm,
	    p->p_ucred ? p->p_ucred->cr_uid : -1,
	    (intmax_t)pc,
	    (intmax_t)frame->ra);

	/* log registers in trap frame */
	log_frame_dump(frame);

	get_mapping_info((vm_offset_t)pc, &pdep, &ptep);

	/*
	 * Dump a few words around faulting instruction, if the addres is
	 * valid.
	 */
	addr = (unsigned int *)(intptr_t)pc;
	if ((pc & 3) == 0 && copyin(addr, instr, sizeof(instr)) == 0) {
		/* dump page table entry for faulting instruction */
		log(LOG_ERR, "Page table info for pc address %#jx: pde = %p, pte = %#jx\n",
		    (intmax_t)pc, (void *)(intptr_t)*pdep, (uintmax_t)(ptep ? *ptep : 0));

		log(LOG_ERR, "Dumping 4 words starting at pc address %p: \n",
		    addr);
		log(LOG_ERR, "%08x %08x %08x %08x\n",
		    instr[0], instr[1], instr[2], instr[3]);
	} else {
		log(LOG_ERR, "pc address %#jx is inaccessible, pde = %p, pte = %#jx\n",
		    (intmax_t)pc, (void *)(intptr_t)*pdep, (uintmax_t)(ptep ? *ptep : 0));
	}
}

static void
log_bad_page_fault(char *msg, struct trapframe *frame, int trap_type)