gdb/config/rs6000/xm-rs6000.h

   1 /* Parameters for hosting on an RS6000, for GDB, the GNU debugger.
   2    Copyright 1986-87, 1989, 1991-96, 1998 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., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 /* The following text is taken from config/rs6000.mh:
  23  * # The IBM version of /usr/include/rpc/rpc.h has a bug -- it says
  24  * # `extern fd_set svc_fdset;' without ever defining the type fd_set.
  25  * # Unfortunately this occurs in the vx-share code, which is not configured
  26  * # like the rest of GDB (e.g. it doesn't include "defs.h").
  27  * # We circumvent this bug by #define-ing fd_set here, but undefining it in
  28  * # the xm-rs6000.h file before ordinary modules try to use it.  FIXME, IBM!
  29  * MH_CFLAGS='-Dfd_set=int'
  30  * So, here we do the undefine...which has to occur before we include
  31  * <sys/select.h> below.
  32  */
  33 #undef fd_set
  34
  35 #include <sys/select.h>
  36
  37 /* Big end is at the low address */
  38
  39 #define HOST_BYTE_ORDER BIG_ENDIAN
  40
  41 /* At least as of AIX 3.2, we have termios.  */
  42 #define HAVE_TERMIOS 1
  43 /* #define HAVE_TERMIO 1 */
  44
  45 #define USG 1
  46 #define HAVE_SIGSETMASK 1
  47
  48 #define FIVE_ARG_PTRACE
  49
  50 /* This system requires that we open a terminal with O_NOCTTY for it to
  51    not become our controlling terminal.  */
  52
  53 #define USE_O_NOCTTY
  54
  55 /* Brain death inherited from PC's pervades.  */
  56 #undef NULL
  57 #define NULL 0
  58
  59 /* The IBM compiler requires this in order to properly compile alloca().  */
  60 #pragma alloca
  61
  62 /* There is no vfork.  */
  63
  64 #define vfork   fork
  65
  66 /* Setpgrp() takes arguments, unlike ordinary Sys V's.  */
  67
  68 #define SETPGRP_ARGS 1
  69
  70 /* AIX doesn't have strdup, so we need to declare it for libiberty */
  71 extern char *strdup PARAMS ((char *));
  72
  73 /* Signal handler for SIGWINCH `window size changed'. */
  74
  75 #define SIGWINCH_HANDLER  aix_resizewindow
  76 extern void aix_resizewindow PARAMS ((int));
  77
  78 /* This doesn't seem to be declared in any header file I can find.  */
  79 char *termdef PARAMS ((int, int));
  80
  81 /* `lines_per_page' and `chars_per_line' are local to utils.c. Rectify this. */
  82
  83 #define SIGWINCH_HANDLER_BODY   \
  84                                                                         \
  85 /* Respond to SIGWINCH `window size changed' signal, and reset GDB's    \
  86    window settings appropriately. */                                    \
  87                                                                         \
  88 void                                            \
  89 aix_resizewindow (signo)                        \
  90      int signo;                                 \
  91 {                                               \
  92   int fd = fileno (stdout);                     \
  93   if (isatty (fd)) {                            \
  94     int val;                                    \
  95                                                 \
  96     val = atoi (termdef (fd, 'l'));             \
  97     if (val > 0)                                \
  98       lines_per_page = val;                     \
  99     val = atoi (termdef (fd, 'c'));             \
 100     if (val > 0)                                \
 101       chars_per_line = val;                     \
 102   }                                             \
 103 }
 104
 105 /* setpgrp() messes up controling terminal. The other version of it
 106    requires libbsd.a. */
 107 #define setpgrp(XX,YY)          setpgid (XX, YY)