18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 28c2ecf20Sopenharmony_ci#ifndef _ASM_UPROBES_H 38c2ecf20Sopenharmony_ci#define _ASM_UPROBES_H 48c2ecf20Sopenharmony_ci/* 58c2ecf20Sopenharmony_ci * User-space Probes (UProbes) for x86 68c2ecf20Sopenharmony_ci * 78c2ecf20Sopenharmony_ci * Copyright (C) IBM Corporation, 2008-2011 88c2ecf20Sopenharmony_ci * Authors: 98c2ecf20Sopenharmony_ci * Srikar Dronamraju 108c2ecf20Sopenharmony_ci * Jim Keniston 118c2ecf20Sopenharmony_ci */ 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ci#include <linux/notifier.h> 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_citypedef u8 uprobe_opcode_t; 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci#define MAX_UINSN_BYTES 16 188c2ecf20Sopenharmony_ci#define UPROBE_XOL_SLOT_BYTES 128 /* to keep it cache aligned */ 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci#define UPROBE_SWBP_INSN 0xcc 218c2ecf20Sopenharmony_ci#define UPROBE_SWBP_INSN_SIZE 1 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_cistruct uprobe_xol_ops; 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_cistruct arch_uprobe { 268c2ecf20Sopenharmony_ci union { 278c2ecf20Sopenharmony_ci u8 insn[MAX_UINSN_BYTES]; 288c2ecf20Sopenharmony_ci u8 ixol[MAX_UINSN_BYTES]; 298c2ecf20Sopenharmony_ci }; 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci const struct uprobe_xol_ops *ops; 328c2ecf20Sopenharmony_ci 338c2ecf20Sopenharmony_ci union { 348c2ecf20Sopenharmony_ci struct { 358c2ecf20Sopenharmony_ci s32 offs; 368c2ecf20Sopenharmony_ci u8 ilen; 378c2ecf20Sopenharmony_ci u8 opc1; 388c2ecf20Sopenharmony_ci } branch; 398c2ecf20Sopenharmony_ci struct { 408c2ecf20Sopenharmony_ci u8 fixups; 418c2ecf20Sopenharmony_ci u8 ilen; 428c2ecf20Sopenharmony_ci } defparam; 438c2ecf20Sopenharmony_ci struct { 448c2ecf20Sopenharmony_ci u8 reg_offset; /* to the start of pt_regs */ 458c2ecf20Sopenharmony_ci u8 ilen; 468c2ecf20Sopenharmony_ci } push; 478c2ecf20Sopenharmony_ci }; 488c2ecf20Sopenharmony_ci}; 498c2ecf20Sopenharmony_ci 508c2ecf20Sopenharmony_cistruct arch_uprobe_task { 518c2ecf20Sopenharmony_ci#ifdef CONFIG_X86_64 528c2ecf20Sopenharmony_ci unsigned long saved_scratch_register; 538c2ecf20Sopenharmony_ci#endif 548c2ecf20Sopenharmony_ci unsigned int saved_trap_nr; 558c2ecf20Sopenharmony_ci unsigned int saved_tf; 568c2ecf20Sopenharmony_ci}; 578c2ecf20Sopenharmony_ci 588c2ecf20Sopenharmony_ci#endif /* _ASM_UPROBES_H */ 59