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- /* 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; \
- } \
- }
-