1 | /* $NetBSD: ptrace.h,v 1.49 2016/11/04 18:14:04 christos Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 1984, 1993 |
5 | * The Regents of the University of California. All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * 3. Neither the name of the University nor the names of its contributors |
16 | * may be used to endorse or promote products derived from this software |
17 | * without specific prior written permission. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
29 | * SUCH DAMAGE. |
30 | * |
31 | * @(#)ptrace.h 8.2 (Berkeley) 1/4/94 |
32 | */ |
33 | |
34 | #ifndef _SYS_PTRACE_H_ |
35 | #define _SYS_PTRACE_H_ |
36 | |
37 | #define PT_TRACE_ME 0 /* child declares it's being traced */ |
38 | #define PT_READ_I 1 /* read word in child's I space */ |
39 | #define PT_READ_D 2 /* read word in child's D space */ |
40 | #define PT_WRITE_I 4 /* write word in child's I space */ |
41 | #define PT_WRITE_D 5 /* write word in child's D space */ |
42 | #define PT_CONTINUE 7 /* continue the child */ |
43 | #define PT_KILL 8 /* kill the child process */ |
44 | #define PT_ATTACH 9 /* attach to running process */ |
45 | #define PT_DETACH 10 /* detach from running process */ |
46 | #define PT_IO 11 /* do I/O to/from the stopped process */ |
47 | #define PT_DUMPCORE 12 /* make child generate a core dump */ |
48 | #define PT_LWPINFO 13 /* get info about the LWP */ |
49 | #define PT_SYSCALL 14 /* stop on syscall entry/exit */ |
50 | #define PT_SYSCALLEMU 15 /* cancel syscall, tracer emulates it */ |
51 | #define PT_SET_EVENT_MASK 16 /* set the event mask, defined below */ |
52 | #define PT_GET_EVENT_MASK 17 /* get the event mask, defined below */ |
53 | #define PT_GET_PROCESS_STATE 18 /* get process state, defined below */ |
54 | |
55 | #define PT_FIRSTMACH 32 /* for machine-specific requests */ |
56 | #include <machine/ptrace.h> /* machine-specific requests, if any */ |
57 | |
58 | #define PT_STRINGS \ |
59 | /* 0 */ "PT_TRACE_ME", \ |
60 | /* 1 */ "PT_READ_I", \ |
61 | /* 2 */ "PT_READ_D", \ |
62 | /* 3 */ "*PT_INVALID_3*", \ |
63 | /* 4 */ "PT_WRITE_I", \ |
64 | /* 5 */ "PT_WRITE_D", \ |
65 | /* 6 */ "*PT_INVALID_6*", \ |
66 | /* 7 */ "PT_CONTINUE", \ |
67 | /* 8 */ "PT_KILL", \ |
68 | /* 9 */ "PT_ATTACH", \ |
69 | /* 10 */ "PT_DETACH", \ |
70 | /* 11 */ "PT_IO", \ |
71 | /* 12 */ "PT_DUMPCORE", \ |
72 | /* 13 */ "PT_LWPINFO", \ |
73 | /* 14 */ "PT_SYSCALL", \ |
74 | /* 15 */ "PT_SYSCALLEMU", \ |
75 | /* 16 */ "PT_SET_EVENT_MASK", \ |
76 | /* 17 */ "PT_GET_EVENT_MASK", \ |
77 | /* 18 */ "PT_GET_PROCESS_STATE", |
78 | |
79 | /* PT_{G,S}EVENT_MASK */ |
80 | typedef struct ptrace_event { |
81 | int pe_set_event; |
82 | } ptrace_event_t; |
83 | |
84 | /* PT_GET_PROCESS_STATE */ |
85 | typedef struct ptrace_state { |
86 | int pe_report_event; |
87 | pid_t pe_other_pid; |
88 | } ptrace_state_t; |
89 | |
90 | #define PTRACE_FORK 0x0001 /* Report forks */ |
91 | |
92 | /* |
93 | * Argument structure for PT_IO. |
94 | */ |
95 | struct ptrace_io_desc { |
96 | int piod_op; /* I/O operation (see below) */ |
97 | void *piod_offs; /* child offset */ |
98 | void *piod_addr; /* parent offset */ |
99 | size_t piod_len; /* request length (in)/actual count (out) */ |
100 | }; |
101 | |
102 | /* piod_op */ |
103 | #define PIOD_READ_D 1 /* read from D space */ |
104 | #define PIOD_WRITE_D 2 /* write to D spcae */ |
105 | #define PIOD_READ_I 3 /* read from I space */ |
106 | #define PIOD_WRITE_I 4 /* write to I space */ |
107 | #define PIOD_READ_AUXV 5 /* Read from aux array */ |
108 | |
109 | /* |
110 | * Argument structure for PT_LWPINFO. |
111 | */ |
112 | struct ptrace_lwpinfo { |
113 | lwpid_t pl_lwpid; /* LWP described */ |
114 | int pl_event; /* Event that stopped the LWP */ |
115 | /* Add fields at the end */ |
116 | }; |
117 | |
118 | #define PL_EVENT_NONE 0 |
119 | #define PL_EVENT_SIGNAL 1 |
120 | |
121 | #ifdef _KERNEL |
122 | |
123 | #if defined(PT_GETREGS) || defined(PT_SETREGS) |
124 | struct reg; |
125 | #ifndef process_reg32 |
126 | #define process_reg32 struct reg |
127 | #endif |
128 | #ifndef process_reg64 |
129 | #define process_reg64 struct reg |
130 | #endif |
131 | #endif |
132 | #if defined(PT_GETFPREGS) || defined(PT_SETFPREGS) |
133 | struct fpreg; |
134 | #ifndef process_fpreg32 |
135 | #define process_fpreg32 struct fpreg |
136 | #endif |
137 | #ifndef process_fpreg64 |
138 | #define process_fpreg64 struct fpreg |
139 | #endif |
140 | #endif |
141 | |
142 | struct ptrace_methods { |
143 | int (*ptm_copyinpiod)(struct ptrace_io_desc *, const void *); |
144 | void (*ptm_copyoutpiod)(const struct ptrace_io_desc *, void *); |
145 | int (*ptm_doregs)(struct lwp *, struct lwp *, struct uio *); |
146 | int (*ptm_dofpregs)(struct lwp *, struct lwp *, struct uio *); |
147 | }; |
148 | |
149 | int ptrace_init(void); |
150 | int ptrace_fini(void); |
151 | void ptrace_hooks(void); |
152 | |
153 | int process_doregs(struct lwp *, struct lwp *, struct uio *); |
154 | int process_validregs(struct lwp *); |
155 | |
156 | int process_dofpregs(struct lwp *, struct lwp *, struct uio *); |
157 | int process_validfpregs(struct lwp *); |
158 | |
159 | int process_domem(struct lwp *, struct lwp *, struct uio *); |
160 | |
161 | void process_stoptrace(void); |
162 | |
163 | void proc_reparent(struct proc *, struct proc *); |
164 | void proc_changeparent(struct proc *, struct proc *); |
165 | |
166 | |
167 | int do_ptrace(struct ptrace_methods *, struct lwp *, int, pid_t, void *, |
168 | int, register_t *); |
169 | |
170 | /* |
171 | * 64bit architectures that support 32bit emulation (amd64 and sparc64) |
172 | * will #define process_read_regs32 to netbsd32_process_read_regs (etc). |
173 | * In all other cases these #defines drop the size suffix. |
174 | */ |
175 | #ifdef PT_GETFPREGS |
176 | int process_read_fpregs(struct lwp *, struct fpreg *, size_t *); |
177 | #ifndef process_read_fpregs32 |
178 | #define process_read_fpregs32 process_read_fpregs |
179 | #endif |
180 | #ifndef process_read_fpregs64 |
181 | #define process_read_fpregs64 process_read_fpregs |
182 | #endif |
183 | #endif |
184 | #ifdef PT_GETREGS |
185 | int process_read_regs(struct lwp *, struct reg *); |
186 | #ifndef process_read_regs32 |
187 | #define process_read_regs32 process_read_regs |
188 | #endif |
189 | #ifndef process_read_regs64 |
190 | #define process_read_regs64 process_read_regs |
191 | #endif |
192 | #endif |
193 | int process_set_pc(struct lwp *, void *); |
194 | int process_sstep(struct lwp *, int); |
195 | #ifdef PT_SETFPREGS |
196 | int process_write_fpregs(struct lwp *, const struct fpreg *, size_t); |
197 | #ifndef process_write_fpregs32 |
198 | #define process_write_fpregs32 process_write_fpregs |
199 | #endif |
200 | #ifndef process_write_fpregs64 |
201 | #define process_write_fpregs64 process_write_fpregs |
202 | #endif |
203 | #endif |
204 | #ifdef PT_SETREGS |
205 | int process_write_regs(struct lwp *, const struct reg *); |
206 | #ifndef process_write_regs32 |
207 | #define process_write_regs32 process_write_regs |
208 | #endif |
209 | #ifndef process_write_regs64 |
210 | #define process_write_regs64 process_write_regs |
211 | #endif |
212 | #endif |
213 | |
214 | #ifdef __HAVE_PROCFS_MACHDEP |
215 | int ptrace_machdep_dorequest(struct lwp *, struct lwp *, int, |
216 | void *, int); |
217 | #endif |
218 | |
219 | #ifndef FIX_SSTEP |
220 | #define FIX_SSTEP(p) |
221 | #endif |
222 | |
223 | #else /* !_KERNEL */ |
224 | |
225 | #include <sys/cdefs.h> |
226 | |
227 | __BEGIN_DECLS |
228 | int ptrace(int _request, pid_t _pid, void *_addr, int _data); |
229 | __END_DECLS |
230 | |
231 | #endif /* !_KERNEL */ |
232 | |
233 | #endif /* !_SYS_PTRACE_H_ */ |
234 | |