1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2#ifndef _ASM_UPROBES_H 3#define _ASM_UPROBES_H 4/* 5 * User-space Probes (UProbes) for sparc 6 * 7 * Copyright (C) 2013 Oracle, Inc. 8 * 9 * Authors: 10 * Jose E. Marchesi <jose.marchesi@oracle.com> 11 * Eric Saint Etienne <eric.saint.etienne@oracle.com> 12 */ 13 14typedef u32 uprobe_opcode_t; 15 16#define MAX_UINSN_BYTES 4 17#define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES * 2) 18 19#define UPROBE_SWBP_INSN_SIZE 4 20#define UPROBE_SWBP_INSN 0x91d02073 /* ta 0x73 */ 21#define UPROBE_STP_INSN 0x91d02074 /* ta 0x74 */ 22 23#define ANNUL_BIT (1 << 29) 24 25struct arch_uprobe { 26 union { 27 u8 insn[MAX_UINSN_BYTES]; 28 u32 ixol; 29 }; 30}; 31 32struct arch_uprobe_task { 33 u64 saved_tpc; 34 u64 saved_tnpc; 35}; 36 37struct task_struct; 38struct notifier_block; 39 40extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr); 41extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs); 42extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); 43extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); 44extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); 45extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); 46 47#endif /* _ASM_UPROBES_H */ 48