projects / deliverable / binutils-gdb.git / blame
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1 | /* Portable <sys/ptrace.h> |
| 2 | ||
| 0fb0cc75 | 3 | Copyright (C) 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc. |
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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 | |
| a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
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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 | |
| a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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19 | |
| 20 | #ifndef GDB_PTRACE_H | |
| 21 | #define GDB_PTRACE_H | |
| 22 | ||
| 23 | /* The <sys/ptrace.h> header was introduced with 4.4BSD, and provided | |
| 24 | the PT_* symbolic constants for the ptrace(2) request numbers. The | |
| 25 | ptrace(2) prototype was added later to the same header on BSD. | |
| 277215a6 | 26 | SunOS and GNU/Linux have slightly different symbolic names for the |
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27 | constants that start with PTRACE_*. System V still doesn't have |
| 28 | (and probably never will have) a <sys/ptrace.h> with symbolic | |
| 29 | constants; the ptrace(2) prototype can be found in <unistd.h>. | |
| 30 | Fortunately all systems use the same numerical constants for the | |
| 31 | common ptrace requests. */ | |
| 32 | ||
| 33 | #ifdef HAVE_PTRACE_H | |
| 34 | # include <ptrace.h> | |
| 35 | #elif defined(HAVE_SYS_PTRACE_H) | |
| 36 | # include <sys/ptrace.h> | |
| 37 | #endif | |
| 38 | ||
| 39 | /* No need to include <unistd.h> since it's already included by | |
| 40 | "defs.h". */ | |
| 41 | ||
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42 | #ifndef PT_TRACE_ME |
| 43 | # define PT_TRACE_ME 0 | |
| 44 | #endif | |
| 45 | ||
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46 | #ifndef PT_READ_I |
| 47 | # define PT_READ_I 1 /* Read word in child's I space. */ | |
| 48 | #endif | |
| 49 | ||
| 50 | #ifndef PT_READ_D | |
| 51 | # define PT_READ_D 2 /* Read word in child's D space. */ | |
| 52 | #endif | |
| 53 | ||
| 54 | #ifndef PT_READ_U | |
| 55 | # define PT_READ_U 3 /* Read word in child's U space. */ | |
| 56 | #endif | |
| 57 | ||
| 58 | #ifndef PT_WRITE_I | |
| 59 | # define PT_WRITE_I 4 /* Write word in child's I space. */ | |
| 60 | #endif | |
| 61 | ||
| 62 | #ifndef PT_WRITE_D | |
| 63 | # define PT_WRITE_D 5 /* Write word in child's D space. */ | |
| 64 | #endif | |
| 65 | ||
| 66 | #ifndef PT_WRITE_U | |
| 67 | # define PT_WRITE_U 6 /* Write word in child's U space. */ | |
| 68 | #endif | |
| 69 | ||
| 70 | /* HP-UX doesn't define PT_CONTINUE and PT_STEP. Instead of those two | |
| 71 | ptrace requests, it has PT_CONTIN, PT_CONTIN1, PT_SINGLE and | |
| 72 | PT_SINGLE1. PT_CONTIN1 and PT_SINGLE1 preserve pending signals, | |
| 73 | which apparently is what is wanted by the HP-UX native code. */ | |
| 74 | ||
| 75 | #ifndef PT_CONTINUE | |
| 76 | # ifdef PT_CONTIN1 | |
| 77 | # define PT_CONTINUE PT_CONTIN1 | |
| 78 | # else | |
| 79 | # define PT_CONTINUE 7 /* Continue the child. */ | |
| 80 | # endif | |
| 81 | #endif | |
| 82 | ||
| 83 | #ifndef PT_KILL | |
| 84 | # define PT_KILL 8 /* Kill the child process. */ | |
| 85 | #endif | |
| 86 | ||
| 87 | #ifndef PT_STEP | |
| 88 | # ifdef PT_SINGLE1 | |
| 89 | # define PT_STEP PT_SINGLE1 | |
| 90 | # else | |
| 91 | # define PT_STEP 9 /* Single step the child. */ | |
| 92 | # endif | |
| 93 | #endif | |
| 94 | ||
| 95 | /* Not all systems support attaching and detaching. */ | |
| 96 | ||
| 4247cafd AS |
97 | #ifndef PT_ATTACH |
| 98 | # ifdef PTRACE_ATTACH | |
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99 | # define PT_ATTACH PTRACE_ATTACH |
| 100 | # endif | |
| 101 | #endif | |
| 102 | ||
| 103 | #ifndef PT_DETACH | |
| 104 | # ifdef PTRACE_DETACH | |
| 105 | # define PT_DETACH PTRACE_DETACH | |
| 106 | # endif | |
| 107 | #endif | |
| 108 | ||
| 01dedca2 JB |
109 | /* For systems such as HP/UX that do not provide PT_SYSCALL, define it |
| 110 | here as an alias for PT_CONTINUE. This is what the PT_SYSCALL | |
| 111 | request is expected to do, in addition to stopping when entering/ | |
| 112 | exiting a system call. Chances are, if the system supports system | |
| 113 | call tracing, enabling this feature is probably done separately; | |
| 114 | and there is probably no special request that we would be required | |
| 115 | to use when resuming the execution of our program. */ | |
| 116 | #ifndef PT_SYSCALL | |
| 117 | # define PT_SYSCALL PT_CONTINUE | |
| 118 | #endif | |
| 119 | ||
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120 | /* Some systems, in particular DEC OSF/1, Digital Unix, Compaq Tru64 |
| 121 | or whatever it's called these days, don't provide a prototype for | |
| 122 | ptrace. Provide one to silence compiler warnings. */ | |
| f1bc22da | 123 | |
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124 | #ifndef HAVE_DECL_PTRACE |
| 125 | extern PTRACE_TYPE_RET ptrace(); | |
| 126 | #endif | |
| 127 | ||
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128 | /* Some systems, at least AIX and HP-UX have a ptrace with five |
| 129 | arguments. Since we never use the fifth argument, define a ptrace | |
| 130 | macro that calls the real ptrace with the last argument set to | |
| 131 | zero. */ | |
| 132 | ||
| 133 | #ifdef PTRACE_TYPE_ARG5 | |
| 134 | # define ptrace(request, pid, addr, data) ptrace (request, pid, addr, data, 0) | |
| 135 | #endif | |
| 136 | ||
| 11003ae3 | 137 | #endif /* gdb_ptrace.h */ |