/* * arch/arm/include/asm/probes.h * * Original contents copied from arch/arm/include/asm/kprobes.h * which contains the following notice... * * Copyright (C) 2006, 2007 Motorola Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * 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. */ #ifndef _ASM_PROBES_H #define _ASM_PROBES_H #ifndef __ASSEMBLY__ typedef u32 probes_opcode_t; struct arch_probes_insn; typedef void (probes_insn_handler_t)(probes_opcode_t, struct arch_probes_insn *, struct pt_regs *); typedef unsigned long (probes_check_cc)(unsigned long); typedef void (probes_insn_singlestep_t)(probes_opcode_t, struct arch_probes_insn *, struct pt_regs *); typedef void (probes_insn_fn_t)(void); /* Architecture specific copy of original instruction. */ struct arch_probes_insn { probes_opcode_t *insn; probes_insn_handler_t *insn_handler; probes_check_cc *insn_check_cc; probes_insn_singlestep_t *insn_singlestep; probes_insn_fn_t *insn_fn; int stack_space; unsigned long register_usage_flags; bool kprobe_direct_exec; }; #endif /* __ASSEMBLY__ */ /* * We assume one instruction can consume at most 64 bytes stack, which is * 'push {r0-r15}'. Instructions consume more or unknown stack space like * 'str r0, [sp, #-80]' and 'str r0, [sp, r1]' should be prohibit to probe. */ #define MAX_STACK_SIZE 64 #endif