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1 | /* Portable <sys/ptrace.h> |
2 | ||
7b6bb8da | 3 | Copyright (C) 2004, 2005, 2007, 2008, 2009, 2010, 2011 |
4c38e0a4 | 4 | Free Software Foundation, Inc. |
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5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
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11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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20 | |
21 | #ifndef GDB_PTRACE_H | |
22 | #define GDB_PTRACE_H | |
23 | ||
24 | /* The <sys/ptrace.h> header was introduced with 4.4BSD, and provided | |
25 | the PT_* symbolic constants for the ptrace(2) request numbers. The | |
26 | ptrace(2) prototype was added later to the same header on BSD. | |
277215a6 | 27 | SunOS and GNU/Linux have slightly different symbolic names for the |
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28 | constants that start with PTRACE_*. System V still doesn't have |
29 | (and probably never will have) a <sys/ptrace.h> with symbolic | |
30 | constants; the ptrace(2) prototype can be found in <unistd.h>. | |
31 | Fortunately all systems use the same numerical constants for the | |
32 | common ptrace requests. */ | |
33 | ||
34 | #ifdef HAVE_PTRACE_H | |
35 | # include <ptrace.h> | |
36 | #elif defined(HAVE_SYS_PTRACE_H) | |
37 | # include <sys/ptrace.h> | |
38 | #endif | |
39 | ||
40 | /* No need to include <unistd.h> since it's already included by | |
41 | "defs.h". */ | |
42 | ||
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43 | #ifndef PT_TRACE_ME |
44 | # define PT_TRACE_ME 0 | |
45 | #endif | |
46 | ||
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47 | #ifndef PT_READ_I |
48 | # define PT_READ_I 1 /* Read word in child's I space. */ | |
49 | #endif | |
50 | ||
51 | #ifndef PT_READ_D | |
52 | # define PT_READ_D 2 /* Read word in child's D space. */ | |
53 | #endif | |
54 | ||
55 | #ifndef PT_READ_U | |
56 | # define PT_READ_U 3 /* Read word in child's U space. */ | |
57 | #endif | |
58 | ||
59 | #ifndef PT_WRITE_I | |
60 | # define PT_WRITE_I 4 /* Write word in child's I space. */ | |
61 | #endif | |
62 | ||
63 | #ifndef PT_WRITE_D | |
64 | # define PT_WRITE_D 5 /* Write word in child's D space. */ | |
65 | #endif | |
66 | ||
67 | #ifndef PT_WRITE_U | |
68 | # define PT_WRITE_U 6 /* Write word in child's U space. */ | |
69 | #endif | |
70 | ||
71 | /* HP-UX doesn't define PT_CONTINUE and PT_STEP. Instead of those two | |
72 | ptrace requests, it has PT_CONTIN, PT_CONTIN1, PT_SINGLE and | |
73 | PT_SINGLE1. PT_CONTIN1 and PT_SINGLE1 preserve pending signals, | |
74 | which apparently is what is wanted by the HP-UX native code. */ | |
75 | ||
76 | #ifndef PT_CONTINUE | |
77 | # ifdef PT_CONTIN1 | |
78 | # define PT_CONTINUE PT_CONTIN1 | |
79 | # else | |
80 | # define PT_CONTINUE 7 /* Continue the child. */ | |
81 | # endif | |
82 | #endif | |
83 | ||
84 | #ifndef PT_KILL | |
85 | # define PT_KILL 8 /* Kill the child process. */ | |
86 | #endif | |
87 | ||
88 | #ifndef PT_STEP | |
89 | # ifdef PT_SINGLE1 | |
90 | # define PT_STEP PT_SINGLE1 | |
91 | # else | |
92 | # define PT_STEP 9 /* Single step the child. */ | |
93 | # endif | |
94 | #endif | |
95 | ||
96 | /* Not all systems support attaching and detaching. */ | |
97 | ||
4247cafd AS |
98 | #ifndef PT_ATTACH |
99 | # ifdef PTRACE_ATTACH | |
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100 | # define PT_ATTACH PTRACE_ATTACH |
101 | # endif | |
102 | #endif | |
103 | ||
104 | #ifndef PT_DETACH | |
105 | # ifdef PTRACE_DETACH | |
106 | # define PT_DETACH PTRACE_DETACH | |
107 | # endif | |
108 | #endif | |
109 | ||
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110 | /* For systems such as HP/UX that do not provide PT_SYSCALL, define it |
111 | here as an alias for PT_CONTINUE. This is what the PT_SYSCALL | |
112 | request is expected to do, in addition to stopping when entering/ | |
113 | exiting a system call. Chances are, if the system supports system | |
114 | call tracing, enabling this feature is probably done separately; | |
115 | and there is probably no special request that we would be required | |
116 | to use when resuming the execution of our program. */ | |
117 | #ifndef PT_SYSCALL | |
09de9781 DM |
118 | # ifdef PTRACE_SYSCALL |
119 | # define PT_SYSCALL PTRACE_SYSCALL | |
120 | #else | |
121 | # define PT_SYSCALL PT_CONTINUE | |
122 | # endif | |
01dedca2 JB |
123 | #endif |
124 | ||
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125 | /* Some systems, in particular DEC OSF/1, Digital Unix, Compaq Tru64 |
126 | or whatever it's called these days, don't provide a prototype for | |
127 | ptrace. Provide one to silence compiler warnings. */ | |
f1bc22da | 128 | |
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129 | #ifndef HAVE_DECL_PTRACE |
130 | extern PTRACE_TYPE_RET ptrace(); | |
131 | #endif | |
132 | ||
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133 | /* Some systems, at least AIX and HP-UX have a ptrace with five |
134 | arguments. Since we never use the fifth argument, define a ptrace | |
135 | macro that calls the real ptrace with the last argument set to | |
136 | zero. */ | |
137 | ||
138 | #ifdef PTRACE_TYPE_ARG5 | |
139 | # define ptrace(request, pid, addr, data) ptrace (request, pid, addr, data, 0) | |
140 | #endif | |
141 | ||
11003ae3 | 142 | #endif /* gdb_ptrace.h */ |