1 #ifndef _LINUX_UPROBES_H
2 #define _LINUX_UPROBES_H
4 * User-space Probes (UProbes)
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 * Copyright (C) IBM Corporation, 2008-2012
24 * Copyright (C) 2011-2012 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
27 #include <linux/errno.h>
28 #include <linux/rbtree.h>
30 struct vm_area_struct;
31 #ifdef CONFIG_ARCH_SUPPORTS_UPROBES
32 #include <asm/uprobes.h>
35 /* flags that denote/change uprobes behaviour */
37 /* Have a copy of original instruction */
38 #define UPROBE_COPY_INSN 0x1
40 /* Dont run handlers when first register/ last unregister in progress*/
41 #define UPROBE_RUN_HANDLER 0x2
43 struct uprobe_consumer {
44 int (*handler)(struct uprobe_consumer *self, struct pt_regs *regs);
46 * filter is optional; If a filter exists, handler is run
47 * if and only if filter returns true.
49 bool (*filter)(struct uprobe_consumer *self, struct task_struct *task);
51 struct uprobe_consumer *next;
55 extern int __weak set_bkpt(struct mm_struct *mm, struct arch_uprobe *auprobe, unsigned long vaddr);
56 extern int __weak set_orig_insn(struct mm_struct *mm, struct arch_uprobe *auprobe, unsigned long vaddr, bool verify);
57 extern bool __weak is_bkpt_insn(uprobe_opcode_t *insn);
58 extern int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *consumer);
59 extern void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *consumer);
60 extern int uprobe_mmap(struct vm_area_struct *vma);
61 #else /* CONFIG_UPROBES is not defined */
63 uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *consumer)
68 uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *consumer)
71 static inline int uprobe_mmap(struct vm_area_struct *vma)
75 #endif /* CONFIG_UPROBES */
76 #endif /* _LINUX_UPROBES_H */