1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2012 Rabin Vincent <rabin at rab.in> 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef _ASM_UPROBES_H 7*4882a593Smuzhiyun #define _ASM_UPROBES_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <asm/probes.h> 10*4882a593Smuzhiyun #include <asm/opcodes.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun typedef u32 uprobe_opcode_t; 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #define MAX_UINSN_BYTES 4 15*4882a593Smuzhiyun #define UPROBE_XOL_SLOT_BYTES 64 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun #define UPROBE_SWBP_ARM_INSN 0xe7f001f9 18*4882a593Smuzhiyun #define UPROBE_SS_ARM_INSN 0xe7f001fa 19*4882a593Smuzhiyun #define UPROBE_SWBP_INSN __opcode_to_mem_arm(UPROBE_SWBP_ARM_INSN) 20*4882a593Smuzhiyun #define UPROBE_SWBP_INSN_SIZE 4 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun struct arch_uprobe_task { 23*4882a593Smuzhiyun u32 backup; 24*4882a593Smuzhiyun unsigned long saved_trap_no; 25*4882a593Smuzhiyun }; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun struct arch_uprobe { 28*4882a593Smuzhiyun u8 insn[MAX_UINSN_BYTES]; 29*4882a593Smuzhiyun unsigned long ixol[2]; 30*4882a593Smuzhiyun uprobe_opcode_t bpinsn; 31*4882a593Smuzhiyun bool simulate; 32*4882a593Smuzhiyun u32 pcreg; 33*4882a593Smuzhiyun void (*prehandler)(struct arch_uprobe *auprobe, 34*4882a593Smuzhiyun struct arch_uprobe_task *autask, 35*4882a593Smuzhiyun struct pt_regs *regs); 36*4882a593Smuzhiyun void (*posthandler)(struct arch_uprobe *auprobe, 37*4882a593Smuzhiyun struct arch_uprobe_task *autask, 38*4882a593Smuzhiyun struct pt_regs *regs); 39*4882a593Smuzhiyun struct arch_probes_insn asi; 40*4882a593Smuzhiyun }; 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun #endif 43