| | 1 | /* Portable <sys/ptrace.h> |
| | 2 | |
| | 3 | Copyright (C) 2004, 2005, 2007, 2008, 2009, 2010, 2011 |
| | 4 | Free Software Foundation, Inc. |
| | 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 |
| | 10 | the Free Software Foundation; either version 3 of the License, or |
| | 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 |
| | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| | 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. |
| | 27 | SunOS and GNU/Linux have slightly different symbolic names for the |
| | 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 | |
| | 43 | #ifndef PT_TRACE_ME |
| | 44 | # define PT_TRACE_ME 0 |
| | 45 | #endif |
| | 46 | |
| | 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 | |
| | 98 | #ifndef PT_ATTACH |
| | 99 | # ifdef PTRACE_ATTACH |
| | 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 | |
| | 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 |
| | 118 | # ifdef PTRACE_SYSCALL |
| | 119 | # define PT_SYSCALL PTRACE_SYSCALL |
| | 120 | #else |
| | 121 | # define PT_SYSCALL PT_CONTINUE |
| | 122 | # endif |
| | 123 | #endif |
| | 124 | |
| | 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. */ |
| | 128 | |
| | 129 | #ifndef HAVE_DECL_PTRACE |
| | 130 | extern PTRACE_TYPE_RET ptrace(); |
| | 131 | #endif |
| | 132 | |
| | 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 | |
| | 142 | #endif /* gdb_ptrace.h */ |
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