11802d0beSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2b2531dd5SDavid A. Long /* 3b2531dd5SDavid A. Long * arch/arm/include/asm/probes.h 4b2531dd5SDavid A. Long * 5b2531dd5SDavid A. Long * Original contents copied from arch/arm/include/asm/kprobes.h 6b2531dd5SDavid A. Long * which contains the following notice... 7b2531dd5SDavid A. Long * 8b2531dd5SDavid A. Long * Copyright (C) 2006, 2007 Motorola Inc. 9b2531dd5SDavid A. Long */ 10b2531dd5SDavid A. Long 11b2531dd5SDavid A. Long #ifndef _ASM_PROBES_H 12b2531dd5SDavid A. Long #define _ASM_PROBES_H 13b2531dd5SDavid A. Long 14a0266c21SWang Nan #ifndef __ASSEMBLY__ 15a0266c21SWang Nan 16f145d664SDavid A. Long typedef u32 probes_opcode_t; 17c18377c3SDavid A. Long 18b4cd605cSDavid A. Long struct arch_probes_insn; 1947e190faSDavid A. Long typedef void (probes_insn_handler_t)(probes_opcode_t, 20b4cd605cSDavid A. Long struct arch_probes_insn *, 217579f4b3SDavid A. Long struct pt_regs *); 22f145d664SDavid A. Long typedef unsigned long (probes_check_cc)(unsigned long); 2347e190faSDavid A. Long typedef void (probes_insn_singlestep_t)(probes_opcode_t, 24b4cd605cSDavid A. Long struct arch_probes_insn *, 257579f4b3SDavid A. Long struct pt_regs *); 2647e190faSDavid A. Long typedef void (probes_insn_fn_t)(void); 27b2531dd5SDavid A. Long 28b2531dd5SDavid A. Long /* Architecture specific copy of original instruction. */ 29b4cd605cSDavid A. Long struct arch_probes_insn { 30f145d664SDavid A. Long probes_opcode_t *insn; 3147e190faSDavid A. Long probes_insn_handler_t *insn_handler; 32f145d664SDavid A. Long probes_check_cc *insn_check_cc; 3347e190faSDavid A. Long probes_insn_singlestep_t *insn_singlestep; 3447e190faSDavid A. Long probes_insn_fn_t *insn_fn; 356624cf65SWang Nan int stack_space; 3628a1899dSWang Nan unsigned long register_usage_flags; 37bfc9657dSWang Nan bool kprobe_direct_exec; 38b2531dd5SDavid A. Long }; 39b2531dd5SDavid A. Long 40a0266c21SWang Nan #endif /* __ASSEMBLY__ */ 41a0266c21SWang Nan 42a0266c21SWang Nan /* 43a0266c21SWang Nan * We assume one instruction can consume at most 64 bytes stack, which is 44a0266c21SWang Nan * 'push {r0-r15}'. Instructions consume more or unknown stack space like 45a0266c21SWang Nan * 'str r0, [sp, #-80]' and 'str r0, [sp, r1]' should be prohibit to probe. 46a0266c21SWang Nan */ 47a0266c21SWang Nan #define MAX_STACK_SIZE 64 48a0266c21SWang Nan 49b2531dd5SDavid A. Long #endif 50