libstdc++-v3/config/os/hpux/os_defines.h

   1 // Specific definitions for HPUX  -*- C++ -*-
   2
   3 // Copyright (C) 2000, 2002 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 #ifndef _GLIBCXX_OS_DEFINES
  31 #define _GLIBCXX_OS_DEFINES 1
  32
  33 // System-specific #define, typedefs, corrections, etc, go here.  This
  34 // file will come before all others.
  35
  36 #define __off_t off_t
  37 #define __off64_t off64_t
  38 #define __ssize_t ssize_t
  39
  40 // Use macro form of ctype functions to ensure __SB_masks is defined.
  41 #define _SB_CTYPE_MACROS 1
  42
  43 /* HP-UX, for reasons unknown choose to use a different name for
  44    the string to [unsigned] long long conversion routines.
  45
  46    Furthermore, instead of having the prototypes in stdlib.h like
  47    everyone else, they put them into a non-standard header
  48    <inttypes.h>.  Ugh.
  49
  50    <inttypes.h> defines a variety of things, some of which we
  51    probably do not want.  So we don't want to include it here.
  52
  53    Luckily we can just declare strtoll and strtoull with the
  54    __asm extension which effectively renames calls at the
  55    source level without namespace pollution.
  56
  57    Also note that the compiler defines _INCLUDE_LONGLONG for C++
  58    unconditionally, which makes intmax_t and uintmax_t long long
  59    types.
  60
  61    We also force _GLIBCXX_USE_LONG_LONG here so that we don't have
  62    to bastardize configure to deal with this sillyness.  */
  63 namespace std
  64 {
  65 #ifndef __LP64__
  66   __extension__ extern "C" long long strtoll (const char *, char **, int)
  67     __asm  ("__strtoll");
  68   __extension__ extern "C" unsigned long long strtoull (const char *, char **, int)
  69     __asm  ("__strtoull");
  70 #else
  71   __extension__ extern "C" long long strtoll (const char *, char **, int)
  72     __asm  ("strtol");
  73   __extension__ extern "C" unsigned long long strtoull (const char *, char **, int)
  74     __asm  ("strtoul");
  75 #endif
  76 }
  77
  78 #define _GLIBCXX_USE_LONG_LONG 1
  79
  80 // HPUX on IA64 requires vtable to be 64 bit aligned even at 32 bit
  81 // mode.  We need to pad the vtable structure to achieve this.
  82 #if !defined(_LP64) && defined (__ia64__)
  83 #define _GLIBCXX_VTABLE_PADDING 8
  84 typedef long int __padding_type;
  85 #endif
  86
  87 // GCC on IA64 HP-UX uses the HP-UX system unwind library,
  88 // it does not have the _Unwind_Resume_or_Rethrow entry point
  89 // because that is not part of the standard IA64 Unwind ABI.
  90 #if defined (__ia64__)
  91 #define _LIBUNWIND_STD_ABI 1
  92 #endif
  93
  94 /* We need explicit instantiation of the atomicity lock on HPPA if
  95    there is no weak support.  */
  96 #if !defined(_GLIBCXX_SUPPORTS_WEAK) && defined (__hppa__)
  97 #define _GLIBCXX_INST_ATOMICITY_LOCK 1
  98 #endif
  99
 100 /* Don't use pragma weak in gthread headers.  */
 101 #ifdef __hppa__
 102 #define _GLIBCXX_GTHREAD_USE_WEAK 0
 103 #endif
 104 #endif