1/* Portable <sys/ptrace.h> 2 3 Copyright (C) 2004, 2005, 2007 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 3 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, see <http://www.gnu.org/licenses/>. */ 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. 26 SunOS and GNU/Linux have slightly different symbolic names for the 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 42#ifndef PT_TRACE_ME 43# define PT_TRACE_ME 0 44#endif 45 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 97#ifndef PT_ATTACH 98# ifdef PTRACE_ATTACH 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 108 109/* Some systems, in particular DEC OSF/1, Digital Unix, Compaq Tru64 110 or whatever it's called these days, don't provide a prototype for 111 ptrace. Provide one to silence compiler warnings. */ 112 113#ifndef HAVE_DECL_PTRACE 114extern PTRACE_TYPE_RET ptrace(); 115#endif 116 117/* Some systems, at least AIX and HP-UX have a ptrace with five 118 arguments. Since we never use the fifth argument, define a ptrace 119 macro that calls the real ptrace with the last argument set to 120 zero. */ 121 122#ifdef PTRACE_TYPE_ARG5 123# define ptrace(request, pid, addr, data) ptrace (request, pid, addr, data, 0) 124#endif 125 126#endif /* gdb_ptrace.h */ 127