/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * arch/arm/probes/decode-thumb.h * * Copyright 2013 Linaro Ltd. * Written by: David A. Long */ #ifndef _ARM_KERNEL_PROBES_THUMB_H #define _ARM_KERNEL_PROBES_THUMB_H #include "decode.h" /* * True if current instruction is in an IT block. */ #define in_it_block(cpsr) ((cpsr & 0x06000c00) != 0x00000000) /* * Return the condition code to check for the currently executing instruction. * This is in ITSTATE<7:4> which is in CPSR<15:12> but is only valid if * in_it_block returns true. */ #define current_cond(cpsr) ((cpsr >> 12) & 0xf) enum probes_t32_action { PROBES_T32_EMULATE_NONE, PROBES_T32_SIMULATE_NOP, PROBES_T32_LDMSTM, PROBES_T32_LDRDSTRD, PROBES_T32_TABLE_BRANCH, PROBES_T32_TST, PROBES_T32_CMP, PROBES_T32_MOV, PROBES_T32_ADDSUB, PROBES_T32_LOGICAL, PROBES_T32_ADDWSUBW_PC, PROBES_T32_ADDWSUBW, PROBES_T32_MOVW, PROBES_T32_SAT, PROBES_T32_BITFIELD, PROBES_T32_SEV, PROBES_T32_WFE, PROBES_T32_MRS, PROBES_T32_BRANCH_COND, PROBES_T32_BRANCH, PROBES_T32_PLDI, PROBES_T32_LDR_LIT, PROBES_T32_LDRSTR, PROBES_T32_SIGN_EXTEND, PROBES_T32_MEDIA, PROBES_T32_REVERSE, PROBES_T32_MUL_ADD, PROBES_T32_MUL_ADD2, PROBES_T32_MUL_ADD_LONG, NUM_PROBES_T32_ACTIONS }; enum probes_t16_action { PROBES_T16_ADD_SP, PROBES_T16_CBZ, PROBES_T16_SIGN_EXTEND, PROBES_T16_PUSH, PROBES_T16_POP, PROBES_T16_SEV, PROBES_T16_WFE, PROBES_T16_IT, PROBES_T16_CMP, PROBES_T16_ADDSUB, PROBES_T16_LOGICAL, PROBES_T16_BLX, PROBES_T16_HIREGOPS, PROBES_T16_LDR_LIT, PROBES_T16_LDRHSTRH, PROBES_T16_LDRSTR, PROBES_T16_ADR, PROBES_T16_LDMSTM, PROBES_T16_BRANCH_COND, PROBES_T16_BRANCH, NUM_PROBES_T16_ACTIONS }; extern const union decode_item probes_decode_thumb32_table[]; extern const union decode_item probes_decode_thumb16_table[]; enum probes_insn __kprobes thumb16_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi, bool emulate, const union decode_action *actions, const struct decode_checker *checkers[]); enum probes_insn __kprobes thumb32_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi, bool emulate, const union decode_action *actions, const struct decode_checker *checkers[]); #endif