binutils-gdb/gdb/config/xm-aix4.h

/* Parameters for hosting on an PowerPC, for GDB, the GNU debugger.
   Copyright 1995, 1998 Free Software Foundation, Inc.
   Contributed by Cygnus Corporation.

   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., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

/* The following text is taken from config/rs6000.mh:
 * # The IBM version of /usr/include/rpc/rpc.h has a bug -- it says
 * # `extern fd_set svc_fdset;' without ever defining the type fd_set.
 * # Unfortunately this occurs in the vx-share code, which is not configured
 * # like the rest of GDB (e.g. it doesn't include "defs.h").
 * # We circumvent this bug by #define-ing fd_set here, but undefining it in
 * # the xm-rs6000.h file before ordinary modules try to use it.  FIXME, IBM!
 * MH_CFLAGS='-Dfd_set=int'
 * So, here we do the undefine...which has to occur before we include
 * <sys/select.h> below.
 */
#undef fd_set

#include <sys/select.h>

/* Big end is at the low address */

#define	HOST_BYTE_ORDER	BIG_ENDIAN

/* At least as of AIX 3.2, we have termios.  */
#define	HAVE_TERMIOS 1
/* #define HAVE_TERMIO 1 */

#define	USG 1
#define	HAVE_SIGSETMASK	1

#define FIVE_ARG_PTRACE

/* AIX declares the mem functions differently than defs.h does.  AIX is
   right, but defs.h works on more old systems.  For now, override it.  */

#define MEM_FNS_DECLARED 1

/* This system requires that we open a terminal with O_NOCTTY for it to
   not become our controlling terminal.  */

#define	USE_O_NOCTTY

/* Brain death inherited from PC's pervades.  */
#undef NULL
#define NULL 0

/* The IBM compiler requires this in order to properly compile alloca().  */
#pragma alloca

/* There is no vfork.  */

#define	vfork	fork

char *termdef ();

/* Signal handler for SIGWINCH `window size changed'. */

#define	SIGWINCH_HANDLER  aix_resizewindow
extern void aix_resizewindow PARAMS ((int));

/* `lines_per_page' and `chars_per_line' are local to utils.c. Rectify this. */

#define	SIGWINCH_HANDLER_BODY	\
									\
/* Respond to SIGWINCH `window size changed' signal, and reset GDB's	\
   window settings appropriately. */					\
									\
void 						\
aix_resizewindow (signo)			\
     int signo;					\
{						\
  int fd = fileno (stdout);			\
  if (isatty (fd)) {				\
    int val;					\
						\
    val = atoi (termdef (fd, 'l'));		\
    if (val > 0)				\
      lines_per_page = val;			\
    val = atoi (termdef (fd, 'c'));		\
    if (val > 0)				\
      chars_per_line = val;			\
  }						\
}