xm-sysv4.h

早期freebsd实现

/* 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 ([e-mail]).

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.  */

/* Use SVR4 style shared library support */

#define SVR4_SHARED_LIBS

/* SVR4 has termio facilities. */

#define HAVE_TERMIO

/* SVR4 has mmap facilities */

#define HAVE_MMAP

/* TIOCGETC and TIOCGLTC are picked up somewhere, but struct tchars
   and struct ltchars are not.  This makes problems for inflow.c.
   It is unknown at this time if this is a generic SVR4 problem or
   one just limited to the initial SVR4 port host machine. */

#define TIOCGETC_BROKEN
#define TIOCGLTC_BROKEN

/* SVR4 is a derivative of System V Release 3 (USG) */

#define USG

/* Get rid of any system-imposed stack limit if possible.  */

/* #define SET_STACK_LIMIT_HUGE */

/* Use setpgid(0,0) to run inferior in a separate process group */

#define NEED_POSIX_SETPGID

/* We have to include these files now, so that GDB will not make
   competing definitions in defs.h.  */
#include <limits.h>