[deliverable/binutils-gdb.git] / gdb / config / rs6000 / xm-rs6000.h

/* Parameters for hosting on an RS6000, for GDB, the GNU debugger.
   Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
   Contributed by IBM 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., 675 Mass Ave, Cambridge, MA 02139, 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

#define	HAVE_TERMIO 1
#define	USG 1
#define	HAVE_SIGSETMASK	1

/* 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

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

#define SET_STACK_LIMIT_HUGE

/* 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

/* Setpgrp() takes arguments, unlike ordinary Sys V's.  */

#define	SETPGRP_ARGS 1

/* AIX doesn't have strdup, so we need to declare it for libiberty */
extern char *strdup PARAMS ((char *));

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

#define	SIGWINCH_HANDLER  aix_resizewindow
extern	void	aix_resizewindow ();

/* This doesn't seem to be declared in any header file I can find.  */
char *termdef PARAMS ((int, 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 approproatelt. */					\
									\
void 						\
aix_resizewindow ()				\
{						\
  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;			\
  }						\
}
Commit	Line	Data
5076de82 FF	1	/* Parameters for hosting on an RS6000, for GDB, the GNU debugger.
	2	Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
	3	Contributed by IBM Corporation.
	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 2 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, write to the Free Software
	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	20
	21	/* The following text is taken from config/rs6000.mh:
	22	* # The IBM version of /usr/include/rpc/rpc.h has a bug -- it says
	23	* # `extern fd_set svc_fdset;' without ever defining the type fd_set.
	24	* # Unfortunately this occurs in the vx-share code, which is not configured
	25	* # like the rest of GDB (e.g. it doesn't include "defs.h").
	26	* # We circumvent this bug by #define-ing fd_set here, but undefining it in
	27	* # the xm-rs6000.h file before ordinary modules try to use it. FIXME, IBM!
	28	* MH_CFLAGS='-Dfd_set=int'
	29	* So, here we do the undefine...which has to occur before we include
	30	* <sys/select.h> below.
	31	*/
	32	#undef fd_set
	33
	34	#include <sys/select.h>
	35
	36	/* Big end is at the low address */
	37
	38	#define HOST_BYTE_ORDER BIG_ENDIAN
	39
	40	#define HAVE_TERMIO 1
	41	#define USG 1
	42	#define HAVE_SIGSETMASK 1
	43
	44	/* AIX declares the mem functions differently than defs.h does. AIX is
	45	right, but defs.h works on more old systems. For now, override it. */
	46
	47	#define MEM_FNS_DECLARED 1
	48
	49	/* This system requires that we open a terminal with O_NOCTTY for it to
	50	not become our controlling terminal. */
	51
	52	#define USE_O_NOCTTY
	53
	54	/* Get rid of any system-imposed stack limit if possible. */
	55
	56	#define SET_STACK_LIMIT_HUGE
	57
	58	/* Brain death inherited from PC's pervades. */
	59	#undef NULL
	60	#define NULL 0
	61
	62	/* The IBM compiler requires this in order to properly compile alloca(). */
	63	#pragma alloca
	64
65	/* There is no vfork. */
66
67	#define vfork fork
68
69	/* Setpgrp() takes arguments, unlike ordinary Sys V's. */
70
71	#define SETPGRP_ARGS 1
72
5076de82 FF	73	/* AIX doesn't have strdup, so we need to declare it for libiberty */
	74	extern char strdup PARAMS ((char ));
	75
	76	/* Signal handler for SIGWINCH `window size changed'. */
	77
	78	#define SIGWINCH_HANDLER aix_resizewindow
	79	extern void aix_resizewindow ();
	80
359a097f JK	81	/* This doesn't seem to be declared in any header file I can find. */
	82	char *termdef PARAMS ((int, int));
	83
5076de82 FF	84	/* `lines_per_page' and `chars_per_line' are local to utils.c. Rectify this. */
	85
	86	#define SIGWINCH_HANDLER_BODY \
	87	\
	88	/* Respond to SIGWINCH `window size changed' signal, and reset GDB's \
	89	window settings approproatelt. */ \
	90	\
	91	void \
	92	aix_resizewindow () \
	93	{ \
	94	int fd = fileno (stdout); \
	95	if (isatty (fd)) { \
	96	int val; \
	97	\
	98	val = atoi (termdef (fd, 'l')); \
	99	if (val > 0) \
	100	lines_per_page = val; \
	101	val = atoi (termdef (fd, 'c')); \
	102	if (val > 0) \
	103	chars_per_line = val; \
	104	} \
	105	}