gdb/config/rs6000/xm-rs6000.h

   1 /* Parameters for hosting on an RS6000, for GDB, the GNU debugger.
   2    Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1998,
   3    2000, 2001 Free Software Foundation, Inc.
   4    Contributed by IBM Corporation.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 /* The following text is taken from config/rs6000.mh:
  24  * # The IBM version of /usr/include/rpc/rpc.h has a bug -- it says
  25  * # `extern fd_set svc_fdset;' without ever defining the type fd_set.
  26  * # Unfortunately this occurs in the vx-share code, which is not configured
  27  * # like the rest of GDB (e.g. it doesn't include "defs.h").
  28  * # We circumvent this bug by #define-ing fd_set here, but undefining it in
  29  * # the xm-rs6000.h file before ordinary modules try to use it.  FIXME, IBM!
  30  * MH_CFLAGS='-Dfd_set=int'
  31  * So, here we do the undefine...which has to occur before we include
  32  * <sys/select.h> below.
  33  */
  34 #undef fd_set
  35
  36 #include <sys/select.h>
  37
  38 /* Big end is at the low address */
  39
  40 #define HOST_BYTE_ORDER BIG_ENDIAN
  41
  42 /* At least as of AIX 3.2, we have termios.  */
  43 #define HAVE_TERMIOS 1
  44 /* #define HAVE_TERMIO 1 */
  45
  46 #define USG 1
  47 #define HAVE_SIGSETMASK 1
  48
  49 #define FIVE_ARG_PTRACE
  50
  51 /* This system requires that we open a terminal with O_NOCTTY for it to
  52    not become our controlling terminal.  */
  53
  54 #define USE_O_NOCTTY
  55
  56 /* Brain death inherited from PC's pervades.  */
  57 #undef NULL
  58 #define NULL 0
  59
  60 /* The IBM compiler requires this in order to properly compile alloca().  */
  61 #pragma alloca
  62
  63 /* There is no vfork.  */
  64
  65 #define vfork   fork
  66
  67 /* Setpgrp() takes arguments, unlike ordinary Sys V's.  */
  68
  69 #define SETPGRP_ARGS 1
  70
  71 /* Signal handler for SIGWINCH `window size changed'. */
  72
  73 #define SIGWINCH_HANDLER  aix_resizewindow
  74 extern void aix_resizewindow (int);
  75
  76 /* This doesn't seem to be declared in any header file I can find.  */
  77 char *termdef (int, int);
  78
  79 /* `lines_per_page' and `chars_per_line' are local to utils.c. Rectify this. */
  80
  81 #define SIGWINCH_HANDLER_BODY   \
  82                                                                         \
  83 /* Respond to SIGWINCH `window size changed' signal, and reset GDB's    \
  84    window settings appropriately. */                                    \
  85                                                                         \
  86 void                                            \
  87 aix_resizewindow (signo)                        \
  88      int signo;                                 \
  89 {                                               \
  90   int fd = fileno (stdout);                     \
  91   if (isatty (fd)) {                            \
  92     int val;                                    \
  93                                                 \
  94     val = atoi (termdef (fd, 'l'));             \
  95     if (val > 0)                                \
  96       lines_per_page = val;                     \
  97     val = atoi (termdef (fd, 'c'));             \
  98     if (val > 0)                                \
  99       chars_per_line = val;                     \
 100   }                                             \
 101 }
 102
 103 /* setpgrp() messes up controling terminal. The other version of it
 104    requires libbsd.a. */
 105 #define setpgrp(XX,YY)          setpgid (XX, YY)