~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/linux/uprobes.h

Version: ~ [ linux-5.12-rc7 ] ~ [ linux-5.11.13 ] ~ [ linux-5.10.29 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.111 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.186 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.230 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.266 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.266 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.18.140 ] ~ [ linux-3.16.85 ] ~ [ linux-3.14.79 ] ~ [ linux-3.12.74 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /* SPDX-License-Identifier: GPL-2.0-or-later */
  2 #ifndef _LINUX_UPROBES_H
  3 #define _LINUX_UPROBES_H
  4 /*
  5  * User-space Probes (UProbes)
  6  *
  7  * Copyright (C) IBM Corporation, 2008-2012
  8  * Authors:
  9  *      Srikar Dronamraju
 10  *      Jim Keniston
 11  * Copyright (C) 2011-2012 Red Hat, Inc., Peter Zijlstra
 12  */
 13 
 14 #include <linux/errno.h>
 15 #include <linux/rbtree.h>
 16 #include <linux/types.h>
 17 #include <linux/wait.h>
 18 
 19 struct vm_area_struct;
 20 struct mm_struct;
 21 struct inode;
 22 struct notifier_block;
 23 struct page;
 24 
 25 #define UPROBE_HANDLER_REMOVE           1
 26 #define UPROBE_HANDLER_MASK             1
 27 
 28 #define MAX_URETPROBE_DEPTH             64
 29 
 30 enum uprobe_filter_ctx {
 31         UPROBE_FILTER_REGISTER,
 32         UPROBE_FILTER_UNREGISTER,
 33         UPROBE_FILTER_MMAP,
 34 };
 35 
 36 struct uprobe_consumer {
 37         int (*handler)(struct uprobe_consumer *self, struct pt_regs *regs);
 38         int (*ret_handler)(struct uprobe_consumer *self,
 39                                 unsigned long func,
 40                                 struct pt_regs *regs);
 41         bool (*filter)(struct uprobe_consumer *self,
 42                                 enum uprobe_filter_ctx ctx,
 43                                 struct mm_struct *mm);
 44 
 45         struct uprobe_consumer *next;
 46 };
 47 
 48 #ifdef CONFIG_UPROBES
 49 #include <asm/uprobes.h>
 50 
 51 enum uprobe_task_state {
 52         UTASK_RUNNING,
 53         UTASK_SSTEP,
 54         UTASK_SSTEP_ACK,
 55         UTASK_SSTEP_TRAPPED,
 56 };
 57 
 58 /*
 59  * uprobe_task: Metadata of a task while it singlesteps.
 60  */
 61 struct uprobe_task {
 62         enum uprobe_task_state          state;
 63 
 64         union {
 65                 struct {
 66                         struct arch_uprobe_task autask;
 67                         unsigned long           vaddr;
 68                 };
 69 
 70                 struct {
 71                         struct callback_head    dup_xol_work;
 72                         unsigned long           dup_xol_addr;
 73                 };
 74         };
 75 
 76         struct uprobe                   *active_uprobe;
 77         unsigned long                   xol_vaddr;
 78 
 79         struct return_instance          *return_instances;
 80         unsigned int                    depth;
 81 };
 82 
 83 struct return_instance {
 84         struct uprobe           *uprobe;
 85         unsigned long           func;
 86         unsigned long           stack;          /* stack pointer */
 87         unsigned long           orig_ret_vaddr; /* original return address */
 88         bool                    chained;        /* true, if instance is nested */
 89 
 90         struct return_instance  *next;          /* keep as stack */
 91 };
 92 
 93 enum rp_check {
 94         RP_CHECK_CALL,
 95         RP_CHECK_CHAIN_CALL,
 96         RP_CHECK_RET,
 97 };
 98 
 99 struct xol_area;
100 
101 struct uprobes_state {
102         struct xol_area         *xol_area;
103 };
104 
105 extern void __init uprobes_init(void);
106 extern int set_swbp(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
107 extern int set_orig_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
108 extern bool is_swbp_insn(uprobe_opcode_t *insn);
109 extern bool is_trap_insn(uprobe_opcode_t *insn);
110 extern unsigned long uprobe_get_swbp_addr(struct pt_regs *regs);
111 extern unsigned long uprobe_get_trap_addr(struct pt_regs *regs);
112 extern int uprobe_write_opcode(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long vaddr, uprobe_opcode_t);
113 extern int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc);
114 extern int uprobe_register_refctr(struct inode *inode, loff_t offset, loff_t ref_ctr_offset, struct uprobe_consumer *uc);
115 extern int uprobe_apply(struct inode *inode, loff_t offset, struct uprobe_consumer *uc, bool);
116 extern void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *uc);
117 extern int uprobe_mmap(struct vm_area_struct *vma);
118 extern void uprobe_munmap(struct vm_area_struct *vma, unsigned long start, unsigned long end);
119 extern void uprobe_start_dup_mmap(void);
120 extern void uprobe_end_dup_mmap(void);
121 extern void uprobe_dup_mmap(struct mm_struct *oldmm, struct mm_struct *newmm);
122 extern void uprobe_free_utask(struct task_struct *t);
123 extern void uprobe_copy_process(struct task_struct *t, unsigned long flags);
124 extern int uprobe_post_sstep_notifier(struct pt_regs *regs);
125 extern int uprobe_pre_sstep_notifier(struct pt_regs *regs);
126 extern void uprobe_notify_resume(struct pt_regs *regs);
127 extern bool uprobe_deny_signal(void);
128 extern bool arch_uprobe_skip_sstep(struct arch_uprobe *aup, struct pt_regs *regs);
129 extern void uprobe_clear_state(struct mm_struct *mm);
130 extern int  arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr);
131 extern int  arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs);
132 extern int  arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
133 extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
134 extern int  arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data);
135 extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs);
136 extern unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs);
137 extern bool arch_uretprobe_is_alive(struct return_instance *ret, enum rp_check ctx, struct pt_regs *regs);
138 extern bool arch_uprobe_ignore(struct arch_uprobe *aup, struct pt_regs *regs);
139 extern void arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr,
140                                          void *src, unsigned long len);
141 #else /* !CONFIG_UPROBES */
142 struct uprobes_state {
143 };
144 
145 static inline void uprobes_init(void)
146 {
147 }
148 
149 #define uprobe_get_trap_addr(regs)      instruction_pointer(regs)
150 
151 static inline int
152 uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc)
153 {
154         return -ENOSYS;
155 }
156 static inline int uprobe_register_refctr(struct inode *inode, loff_t offset, loff_t ref_ctr_offset, struct uprobe_consumer *uc)
157 {
158         return -ENOSYS;
159 }
160 static inline int
161 uprobe_apply(struct inode *inode, loff_t offset, struct uprobe_consumer *uc, bool add)
162 {
163         return -ENOSYS;
164 }
165 static inline void
166 uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *uc)
167 {
168 }
169 static inline int uprobe_mmap(struct vm_area_struct *vma)
170 {
171         return 0;
172 }
173 static inline void
174 uprobe_munmap(struct vm_area_struct *vma, unsigned long start, unsigned long end)
175 {
176 }
177 static inline void uprobe_start_dup_mmap(void)
178 {
179 }
180 static inline void uprobe_end_dup_mmap(void)
181 {
182 }
183 static inline void
184 uprobe_dup_mmap(struct mm_struct *oldmm, struct mm_struct *newmm)
185 {
186 }
187 static inline void uprobe_notify_resume(struct pt_regs *regs)
188 {
189 }
190 static inline bool uprobe_deny_signal(void)
191 {
192         return false;
193 }
194 static inline void uprobe_free_utask(struct task_struct *t)
195 {
196 }
197 static inline void uprobe_copy_process(struct task_struct *t, unsigned long flags)
198 {
199 }
200 static inline void uprobe_clear_state(struct mm_struct *mm)
201 {
202 }
203 #endif /* !CONFIG_UPROBES */
204 #endif  /* _LINUX_UPROBES_H */
205 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp