1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * arch/arm/probes/decode-thumb.h 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright 2013 Linaro Ltd. 6*4882a593Smuzhiyun * Written by: David A. Long 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #ifndef _ARM_KERNEL_PROBES_THUMB_H 10*4882a593Smuzhiyun #define _ARM_KERNEL_PROBES_THUMB_H 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #include "decode.h" 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* 15*4882a593Smuzhiyun * True if current instruction is in an IT block. 16*4882a593Smuzhiyun */ 17*4882a593Smuzhiyun #define in_it_block(cpsr) ((cpsr & 0x06000c00) != 0x00000000) 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun /* 20*4882a593Smuzhiyun * Return the condition code to check for the currently executing instruction. 21*4882a593Smuzhiyun * This is in ITSTATE<7:4> which is in CPSR<15:12> but is only valid if 22*4882a593Smuzhiyun * in_it_block returns true. 23*4882a593Smuzhiyun */ 24*4882a593Smuzhiyun #define current_cond(cpsr) ((cpsr >> 12) & 0xf) 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun enum probes_t32_action { 27*4882a593Smuzhiyun PROBES_T32_EMULATE_NONE, 28*4882a593Smuzhiyun PROBES_T32_SIMULATE_NOP, 29*4882a593Smuzhiyun PROBES_T32_LDMSTM, 30*4882a593Smuzhiyun PROBES_T32_LDRDSTRD, 31*4882a593Smuzhiyun PROBES_T32_TABLE_BRANCH, 32*4882a593Smuzhiyun PROBES_T32_TST, 33*4882a593Smuzhiyun PROBES_T32_CMP, 34*4882a593Smuzhiyun PROBES_T32_MOV, 35*4882a593Smuzhiyun PROBES_T32_ADDSUB, 36*4882a593Smuzhiyun PROBES_T32_LOGICAL, 37*4882a593Smuzhiyun PROBES_T32_ADDWSUBW_PC, 38*4882a593Smuzhiyun PROBES_T32_ADDWSUBW, 39*4882a593Smuzhiyun PROBES_T32_MOVW, 40*4882a593Smuzhiyun PROBES_T32_SAT, 41*4882a593Smuzhiyun PROBES_T32_BITFIELD, 42*4882a593Smuzhiyun PROBES_T32_SEV, 43*4882a593Smuzhiyun PROBES_T32_WFE, 44*4882a593Smuzhiyun PROBES_T32_MRS, 45*4882a593Smuzhiyun PROBES_T32_BRANCH_COND, 46*4882a593Smuzhiyun PROBES_T32_BRANCH, 47*4882a593Smuzhiyun PROBES_T32_PLDI, 48*4882a593Smuzhiyun PROBES_T32_LDR_LIT, 49*4882a593Smuzhiyun PROBES_T32_LDRSTR, 50*4882a593Smuzhiyun PROBES_T32_SIGN_EXTEND, 51*4882a593Smuzhiyun PROBES_T32_MEDIA, 52*4882a593Smuzhiyun PROBES_T32_REVERSE, 53*4882a593Smuzhiyun PROBES_T32_MUL_ADD, 54*4882a593Smuzhiyun PROBES_T32_MUL_ADD2, 55*4882a593Smuzhiyun PROBES_T32_MUL_ADD_LONG, 56*4882a593Smuzhiyun NUM_PROBES_T32_ACTIONS 57*4882a593Smuzhiyun }; 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun enum probes_t16_action { 60*4882a593Smuzhiyun PROBES_T16_ADD_SP, 61*4882a593Smuzhiyun PROBES_T16_CBZ, 62*4882a593Smuzhiyun PROBES_T16_SIGN_EXTEND, 63*4882a593Smuzhiyun PROBES_T16_PUSH, 64*4882a593Smuzhiyun PROBES_T16_POP, 65*4882a593Smuzhiyun PROBES_T16_SEV, 66*4882a593Smuzhiyun PROBES_T16_WFE, 67*4882a593Smuzhiyun PROBES_T16_IT, 68*4882a593Smuzhiyun PROBES_T16_CMP, 69*4882a593Smuzhiyun PROBES_T16_ADDSUB, 70*4882a593Smuzhiyun PROBES_T16_LOGICAL, 71*4882a593Smuzhiyun PROBES_T16_BLX, 72*4882a593Smuzhiyun PROBES_T16_HIREGOPS, 73*4882a593Smuzhiyun PROBES_T16_LDR_LIT, 74*4882a593Smuzhiyun PROBES_T16_LDRHSTRH, 75*4882a593Smuzhiyun PROBES_T16_LDRSTR, 76*4882a593Smuzhiyun PROBES_T16_ADR, 77*4882a593Smuzhiyun PROBES_T16_LDMSTM, 78*4882a593Smuzhiyun PROBES_T16_BRANCH_COND, 79*4882a593Smuzhiyun PROBES_T16_BRANCH, 80*4882a593Smuzhiyun NUM_PROBES_T16_ACTIONS 81*4882a593Smuzhiyun }; 82*4882a593Smuzhiyun 83*4882a593Smuzhiyun extern const union decode_item probes_decode_thumb32_table[]; 84*4882a593Smuzhiyun extern const union decode_item probes_decode_thumb16_table[]; 85*4882a593Smuzhiyun 86*4882a593Smuzhiyun enum probes_insn __kprobes 87*4882a593Smuzhiyun thumb16_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi, 88*4882a593Smuzhiyun bool emulate, const union decode_action *actions, 89*4882a593Smuzhiyun const struct decode_checker *checkers[]); 90*4882a593Smuzhiyun enum probes_insn __kprobes 91*4882a593Smuzhiyun thumb32_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi, 92*4882a593Smuzhiyun bool emulate, const union decode_action *actions, 93*4882a593Smuzhiyun const struct decode_checker *checkers[]); 94*4882a593Smuzhiyun 95*4882a593Smuzhiyun #endif 96