1/* Portable <sys/ptrace.h>
2
3   Copyright 2004 Free Software Foundation, Inc.
4
5   This file is part of GDB.
6
7   This program is free software; you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 2 of the License, or
10   (at your option) any later version.
11
12   This program is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with this program; if not, write to the Free Software
19   Foundation, Inc., 59 Temple Place - Suite 330,
20   Boston, MA 02111-1307, USA.  */
21
22#ifndef GDB_PTRACE_H
23#define GDB_PTRACE_H
24
25/* The <sys/ptrace.h> header was introduced with 4.4BSD, and provided
26   the PT_* symbolic constants for the ptrace(2) request numbers.  The
27   ptrace(2) prototype was added later to the same header on BSD.
28   SunOS and GNU/Linux have slightly different symbolic names for the
29   constants that start with PTRACE_*.  System V still doesn't have
30   (and probably never will have) a <sys/ptrace.h> with symbolic
31   constants; the ptrace(2) prototype can be found in <unistd.h>.
32   Fortunately all systems use the same numerical constants for the
33   common ptrace requests.  */
34
35#ifdef HAVE_PTRACE_H
36# include <ptrace.h>
37#elif defined(HAVE_SYS_PTRACE_H)
38# include <sys/ptrace.h>
39#endif
40
41/* No need to include <unistd.h> since it's already included by
42   "defs.h".  */
43
44#ifndef PT_READ_I
45# define PT_READ_I	1	/* Read word in child's I space.  */
46#endif
47
48#ifndef PT_READ_D
49# define PT_READ_D	2	/* Read word in child's D space.  */
50#endif
51
52#ifndef PT_READ_U
53# define PT_READ_U	3	/* Read word in child's U space.  */
54#endif
55
56#ifndef PT_WRITE_I
57# define PT_WRITE_I	4	/* Write word in child's I space.  */
58#endif
59
60#ifndef PT_WRITE_D
61# define PT_WRITE_D	5	/* Write word in child's D space.  */
62#endif
63
64#ifndef PT_WRITE_U
65# define PT_WRITE_U	6	/* Write word in child's U space.  */
66#endif
67
68/* HP-UX doesn't define PT_CONTINUE and PT_STEP.  Instead of those two
69   ptrace requests, it has PT_CONTIN, PT_CONTIN1, PT_SINGLE and
70   PT_SINGLE1.  PT_CONTIN1 and PT_SINGLE1 preserve pending signals,
71   which apparently is what is wanted by the HP-UX native code.  */
72
73#ifndef PT_CONTINUE
74# ifdef PT_CONTIN1
75#  define PT_CONTINUE	PT_CONTIN1
76# else
77#  define PT_CONTINUE	7	/* Continue the child.  */
78# endif
79#endif
80
81#ifndef PT_KILL
82# define PT_KILL	8	/* Kill the child process.  */
83#endif
84
85#ifndef PT_STEP
86# ifdef PT_SINGLE1
87#  define PT_STEP	PT_SINGLE1
88# else
89#  define PT_STEP	9	/* Single step the child.   */
90# endif
91#endif
92
93/* Not all systems support attaching and detaching.   */
94
95#ifndef PT_ATTCH
96# ifdef PTRACE_DETACH
97#  define PT_ATTACH PTRACE_ATTACH
98# endif
99#endif
100
101#ifndef PT_DETACH
102# ifdef PTRACE_DETACH
103#  define PT_DETACH PTRACE_DETACH
104# endif
105#endif
106
107/* Some systems, in particular DEC OSF/1, Digital Unix, Compaq Tru64
108   or whatever it's called these days, don't provide a prototype for
109   ptrace.  Provide one to silence compiler warnings.  */
110#ifndef HAVE_DECL_PTRACE
111extern PTRACE_TYPE_RET ptrace();
112#endif
113
114#endif /* gdb_ptrace.h */
115