Index: head/sys/mips/mips/support.S =================================================================== --- head/sys/mips/mips/support.S +++ head/sys/mips/mips/support.S @@ -105,38 +105,6 @@ .text /* - * See if access to addr with a len type instruction causes a machine check. - * len is length of access (1=byte, 2=short, 4=int) - * - * badaddr(addr, len) - * char *addr; - * int len; - */ -LEAF(badaddr) - PTR_LA v0, baderr - GET_CPU_PCPU(v1) - PTR_L v1, PC_CURPCB(v1) - bne a1, 1, 2f - PTR_S v0, U_PCB_ONFAULT(v1) - b 5f - lbu v0, (a0) -2: - bne a1, 2, 4f - nop - b 5f - lhu v0, (a0) -4: - lw v0, (a0) -5: - PTR_S zero, U_PCB_ONFAULT(v1) - j ra - move v0, zero # made it w/o errors -baderr: - j ra - li v0, 1 # trap sends us here -END(badaddr) - -/* * int copystr(void *kfaddr, void *kdaddr, size_t maxlen, size_t *lencopied) * Copy a NIL-terminated string, at most maxlen characters long. Return the * number of characters copied (including the NIL) in *lencopied. If the