| /* |
| * This file is part of ltrace. |
| * Copyright (C) 2013 Petr Machata, Red Hat Inc. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of the |
| * License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| * 02110-1301 USA |
| */ |
| |
| #define SUBMASK(x) ((1L << ((x) + 1)) - 1) |
| #define BIT(obj,st) (((obj) >> (st)) & 1) |
| #define BITS(obj,st,fn) (((obj) >> (st)) & SUBMASK((fn) - (st))) |
| #define SBITS(obj,st,fn) \ |
| ((long) (BITS(obj,st,fn) | ((long) BIT(obj,fn) * ~ SUBMASK(fn - st)))) |
| |
| enum arm_register { |
| ARM_REG_R7 = 7, |
| ARM_REG_IP = 12, |
| ARM_REG_SP = 13, |
| ARM_REG_LR = 14, |
| ARM_REG_PC = 15, |
| ARM_REG_CPSR = 16, |
| }; |
| |
| /* Write value of register REG to *LP. Return 0 on success or a |
| * negative value on failure. */ |
| int arm_get_register(struct process *proc, enum arm_register reg, uint32_t *lp); |
| |
| /* Same as above, but if REG==ARM_REG_PC, it returns the value +8. */ |
| int arm_get_register_offpc(struct process *proc, enum arm_register reg, |
| uint32_t *lp); |
| |
| /* Same as arm_get_register, but shift is performed depending on |
| * instruction INST. */ |
| int arm_get_shifted_register(struct process *proc, uint32_t inst, int carry, |
| arch_addr_t pc, uint32_t *lp); |
