PT_R1
cfi_st ra, PT_R1, \docfi
cfi_ld ra, PT_R1, \docfi
OFFSET(PT_R1, pt_regs, regs[1]);
DEFINE(PT_R1, offsetof(struct pt_regs, r1));
cfi_ld $1, PT_R1, \docfi
cfi_st $1, PT_R1, \docfi
OFFSET(PT_R1, pt_regs, regs[1]);
2 : stw r1, PT_R1(sp)
ldw r1, PT_R1(sp) /* Restore registers */
OFFSET(PT_R1, pt_regs, r1);
CHECK_REG(PT_R1, gpr[1]);
read_user_stack_32(&uregs[PT_R1], &sp))
read_user_stack_64(&uregs[PT_R1], &sp))