| /* Portable <sys/ptrace.h> |
| |
| Copyright (C) 2004-2005, 2007-2012 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef GDB_PTRACE_H |
| #define GDB_PTRACE_H |
| |
| /* The <sys/ptrace.h> header was introduced with 4.4BSD, and provided |
| the PT_* symbolic constants for the ptrace(2) request numbers. The |
| ptrace(2) prototype was added later to the same header on BSD. |
| SunOS and GNU/Linux have slightly different symbolic names for the |
| constants that start with PTRACE_*. System V still doesn't have |
| (and probably never will have) a <sys/ptrace.h> with symbolic |
| constants; the ptrace(2) prototype can be found in <unistd.h>. |
| Fortunately all systems use the same numerical constants for the |
| common ptrace requests. */ |
| |
| #ifdef HAVE_PTRACE_H |
| # include <ptrace.h> |
| #elif defined(HAVE_SYS_PTRACE_H) |
| # include <sys/ptrace.h> |
| #endif |
| |
| /* No need to include <unistd.h> since it's already included by |
| "defs.h". */ |
| |
| #ifndef PT_TRACE_ME |
| # define PT_TRACE_ME 0 |
| #endif |
| |
| #ifndef PT_READ_I |
| # define PT_READ_I 1 /* Read word in child's I space. */ |
| #endif |
| |
| #ifndef PT_READ_D |
| # define PT_READ_D 2 /* Read word in child's D space. */ |
| #endif |
| |
| #ifndef PT_READ_U |
| # define PT_READ_U 3 /* Read word in child's U space. */ |
| #endif |
| |
| #ifndef PT_WRITE_I |
| # define PT_WRITE_I 4 /* Write word in child's I space. */ |
| #endif |
| |
| #ifndef PT_WRITE_D |
| # define PT_WRITE_D 5 /* Write word in child's D space. */ |
| #endif |
| |
| #ifndef PT_WRITE_U |
| # define PT_WRITE_U 6 /* Write word in child's U space. */ |
| #endif |
| |
| /* HP-UX doesn't define PT_CONTINUE and PT_STEP. Instead of those two |
| ptrace requests, it has PT_CONTIN, PT_CONTIN1, PT_SINGLE and |
| PT_SINGLE1. PT_CONTIN1 and PT_SINGLE1 preserve pending signals, |
| which apparently is what is wanted by the HP-UX native code. */ |
| |
| #ifndef PT_CONTINUE |
| # ifdef PT_CONTIN1 |
| # define PT_CONTINUE PT_CONTIN1 |
| # else |
| # define PT_CONTINUE 7 /* Continue the child. */ |
| # endif |
| #endif |
| |
| #ifndef PT_KILL |
| # define PT_KILL 8 /* Kill the child process. */ |
| #endif |
| |
| #ifndef PT_STEP |
| # ifdef PT_SINGLE1 |
| # define PT_STEP PT_SINGLE1 |
| # else |
| # define PT_STEP 9 /* Single step the child. */ |
| # endif |
| #endif |
| |
| /* Not all systems support attaching and detaching. */ |
| |
| #ifndef PT_ATTACH |
| # ifdef PTRACE_ATTACH |
| # define PT_ATTACH PTRACE_ATTACH |
| # endif |
| #endif |
| |
| #ifndef PT_DETACH |
| # ifdef PTRACE_DETACH |
| # define PT_DETACH PTRACE_DETACH |
| # endif |
| #endif |
| |
| /* For systems such as HP/UX that do not provide PT_SYSCALL, define it |
| here as an alias for PT_CONTINUE. This is what the PT_SYSCALL |
| request is expected to do, in addition to stopping when entering/ |
| exiting a system call. Chances are, if the system supports system |
| call tracing, enabling this feature is probably done separately; |
| and there is probably no special request that we would be required |
| to use when resuming the execution of our program. */ |
| #ifndef PT_SYSCALL |
| # ifdef PTRACE_SYSCALL |
| # define PT_SYSCALL PTRACE_SYSCALL |
| #else |
| # define PT_SYSCALL PT_CONTINUE |
| # endif |
| #endif |
| |
| /* Some systems, in particular DEC OSF/1, Digital Unix, Compaq Tru64 |
| or whatever it's called these days, don't provide a prototype for |
| ptrace. Provide one to silence compiler warnings. */ |
| |
| #ifndef HAVE_DECL_PTRACE |
| extern PTRACE_TYPE_RET ptrace(); |
| #endif |
| |
| /* Some systems, at least AIX and HP-UX have a ptrace with five |
| arguments. Since we never use the fifth argument, define a ptrace |
| macro that calls the real ptrace with the last argument set to |
| zero. */ |
| |
| #ifdef PTRACE_TYPE_ARG5 |
| # define ptrace(request, pid, addr, data) ptrace (request, pid, addr, data, 0) |
| #endif |
| |
| #endif /* gdb_ptrace.h */ |