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 sparc 68c2ecf20Sopenharmony_ci * 78c2ecf20Sopenharmony_ci * Copyright (C) 2013 Oracle, Inc. 88c2ecf20Sopenharmony_ci * 98c2ecf20Sopenharmony_ci * Authors: 108c2ecf20Sopenharmony_ci * Jose E. Marchesi <jose.marchesi@oracle.com> 118c2ecf20Sopenharmony_ci * Eric Saint Etienne <eric.saint.etienne@oracle.com> 128c2ecf20Sopenharmony_ci */ 138c2ecf20Sopenharmony_ci 148c2ecf20Sopenharmony_citypedef u32 uprobe_opcode_t; 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ci#define MAX_UINSN_BYTES 4 178c2ecf20Sopenharmony_ci#define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES * 2) 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ci#define UPROBE_SWBP_INSN_SIZE 4 208c2ecf20Sopenharmony_ci#define UPROBE_SWBP_INSN 0x91d02073 /* ta 0x73 */ 218c2ecf20Sopenharmony_ci#define UPROBE_STP_INSN 0x91d02074 /* ta 0x74 */ 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ci#define ANNUL_BIT (1 << 29) 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_cistruct arch_uprobe { 268c2ecf20Sopenharmony_ci union { 278c2ecf20Sopenharmony_ci u8 insn[MAX_UINSN_BYTES]; 288c2ecf20Sopenharmony_ci u32 ixol; 298c2ecf20Sopenharmony_ci }; 308c2ecf20Sopenharmony_ci}; 318c2ecf20Sopenharmony_ci 328c2ecf20Sopenharmony_cistruct arch_uprobe_task { 338c2ecf20Sopenharmony_ci u64 saved_tpc; 348c2ecf20Sopenharmony_ci u64 saved_tnpc; 358c2ecf20Sopenharmony_ci}; 368c2ecf20Sopenharmony_ci 378c2ecf20Sopenharmony_cistruct task_struct; 388c2ecf20Sopenharmony_cistruct notifier_block; 398c2ecf20Sopenharmony_ci 408c2ecf20Sopenharmony_ciextern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr); 418c2ecf20Sopenharmony_ciextern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs); 428c2ecf20Sopenharmony_ciextern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); 438c2ecf20Sopenharmony_ciextern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); 448c2ecf20Sopenharmony_ciextern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); 458c2ecf20Sopenharmony_ciextern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); 468c2ecf20Sopenharmony_ci 478c2ecf20Sopenharmony_ci#endif /* _ASM_UPROBES_H */ 48