1 #ifndef _ASM_UPROBES_H 2 #define _ASM_UPROBES_H 3 /* 4 * User-space Probes (UProbes) for sparc 5 * 6 * Copyright (C) 2013 Oracle, Inc. 7 * 8 * This program is free software: you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation, either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program. If not, see <http://www.gnu.org/licenses/>. 20 * 21 * Authors: 22 * Jose E. Marchesi <jose.marchesi@oracle.com> 23 * Eric Saint Etienne <eric.saint.etienne@oracle.com> 24 */ 25 26 typedef u32 uprobe_opcode_t; 27 28 #define MAX_UINSN_BYTES 4 29 #define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES * 2) 30 31 #define UPROBE_SWBP_INSN_SIZE 4 32 #define UPROBE_SWBP_INSN 0x91d02073 /* ta 0x73 */ 33 #define UPROBE_STP_INSN 0x91d02074 /* ta 0x74 */ 34 35 #define ANNUL_BIT (1 << 29) 36 37 struct arch_uprobe { 38 union { 39 u8 insn[MAX_UINSN_BYTES]; 40 u32 ixol; 41 }; 42 }; 43 44 struct arch_uprobe_task { 45 u64 saved_tpc; 46 u64 saved_tnpc; 47 }; 48 49 struct task_struct; 50 struct notifier_block; 51 52 extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr); 53 extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs); 54 extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); 55 extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); 56 extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); 57 extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); 58 59 #endif /* _ASM_UPROBES_H */ 60
