FreeBSD/Linux Kernel Cross Reference
sys/sys/ptrace.h
1 /*-
2 * Copyright (c) 1984, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)ptrace.h 8.2 (Berkeley) 1/4/94
34 * $FreeBSD: releng/5.2/sys/sys/ptrace.h 120937 2003-10-09 10:17:16Z robert $
35 */
36
37 #ifndef _SYS_PTRACE_H_
38 #define _SYS_PTRACE_H_
39
40 #define PT_TRACE_ME 0 /* child declares it's being traced */
41 #define PT_READ_I 1 /* read word in child's I space */
42 #define PT_READ_D 2 /* read word in child's D space */
43 /* was PT_READ_U 3 * read word in child's user structure */
44 #define PT_WRITE_I 4 /* write word in child's I space */
45 #define PT_WRITE_D 5 /* write word in child's D space */
46 /* was PT_WRITE_U 6 * write word in child's user structure */
47 #define PT_CONTINUE 7 /* continue the child */
48 #define PT_KILL 8 /* kill the child process */
49 #define PT_STEP 9 /* single step the child */
50
51 #define PT_ATTACH 10 /* trace some running process */
52 #define PT_DETACH 11 /* stop tracing a process */
53 #define PT_IO 12 /* do I/O to/from stopped process. */
54
55 #define PT_TO_SCE 20
56 #define PT_TO_SCX 21
57 #define PT_SYSCALL 22
58
59 #define PT_GETREGS 33 /* get general-purpose registers */
60 #define PT_SETREGS 34 /* set general-purpose registers */
61 #define PT_GETFPREGS 35 /* get floating-point registers */
62 #define PT_SETFPREGS 36 /* set floating-point registers */
63 #define PT_GETDBREGS 37 /* get debugging registers */
64 #define PT_SETDBREGS 38 /* set debugging registers */
65
66 #define PT_FIRSTMACH 64 /* for machine-specific requests */
67 #include <machine/ptrace.h> /* machine-specific requests, if any */
68
69 struct ptrace_io_desc {
70 int piod_op; /* I/O operation */
71 void *piod_offs; /* child offset */
72 void *piod_addr; /* parent offset */
73 size_t piod_len; /* request length */
74 };
75
76 /*
77 * Operations in piod_op.
78 */
79 #define PIOD_READ_D 1 /* Read from D space */
80 #define PIOD_WRITE_D 2 /* Write to D space */
81 #define PIOD_READ_I 3 /* Read from I space */
82 #define PIOD_WRITE_I 4 /* Write to I space */
83
84 #ifdef _KERNEL
85
86 #define PTRACESTOP_SC(p, td, flag) \
87 if ((p)->p_flag & P_TRACED && (p)->p_stops & (flag)) { \
88 PROC_LOCK(p); \
89 ptracestop((td), SIGTRAP); \
90 }
91 /*
92 * The flags below are used for ptrace(2) tracing and have no relation
93 * to procfs. They are stored in struct proc's p_stops member.
94 */
95 #define S_PT_SCE 0x000010000
96 #define S_PT_SCX 0x000020000
97
98 int ptrace_set_pc(struct thread *_td, unsigned long _addr);
99 int ptrace_single_step(struct thread *_td);
100
101 #ifdef __HAVE_PTRACE_MACHDEP
102 int cpu_ptrace(struct thread *_td, int _req, void *_addr, int _data);
103 #endif
104
105 /*
106 * These are prototypes for functions that implement some of the
107 * debugging functionality exported by procfs / linprocfs and by the
108 * ptrace(2) syscall. They used to be part of procfs, but they don't
109 * really belong there.
110 */
111 struct reg;
112 struct fpreg;
113 struct dbreg;
114 struct uio;
115 int proc_read_regs(struct thread *_td, struct reg *_reg);
116 int proc_write_regs(struct thread *_td, struct reg *_reg);
117 int proc_read_fpregs(struct thread *_td, struct fpreg *_fpreg);
118 int proc_write_fpregs(struct thread *_td, struct fpreg *_fpreg);
119 int proc_read_dbregs(struct thread *_td, struct dbreg *_dbreg);
120 int proc_write_dbregs(struct thread *_td, struct dbreg *_dbreg);
121 int proc_sstep(struct thread *_td);
122 int proc_rwmem(struct proc *_p, struct uio *_uio);
123 #else /* !_KERNEL */
124
125 #include <sys/cdefs.h>
126
127 __BEGIN_DECLS
128 int ptrace(int _request, pid_t _pid, caddr_t _addr, int _data);
129 __END_DECLS
130
131 #endif /* !_KERNEL */
132
133 #endif /* !_SYS_PTRACE_H_ */
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