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- /* 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
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