4.4BSD/usr/src/contrib/gdb-4.7.lbl/gdb/nm-sysv4.h

/* Definitions for running gdb on a host machine running any flavor of SVR4.
   Copyright 1991, 1992 Free Software Foundation, Inc.
   Written by Fred Fish at Cygnus Support (fnf@cygnus.com).

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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* SVR4 has /proc support, so use it instead of ptrace. */

#define USE_PROC_FS

/* SVR4 machines can easily do attach and detach via /proc (procfs.c)
   support */

#define ATTACH_DETACH