gcc/config/alpha/netbsd.h

   1 /* Definitions of target machine for GNU compiler,
   2    for Alpha NetBSD systems.
   3    Copyright (C) 1998, 2002 Free Software Foundation, Inc.
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC 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, or (at your option)
  10 any later version.
  11
  12 GNU CC 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 GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 #undef TARGET_DEFAULT
  23 #define TARGET_DEFAULT (MASK_FP | MASK_FPREGS | MASK_GAS)
  24
  25 #undef CPP_PREDEFINES
  26 #define CPP_PREDEFINES                                                  \
  27   "-D__NetBSD__ -D__ELF__ -Asystem=unix -Asystem=NetBSD"
  28
  29
  30 /* Show that we need a GP when profiling.  */
  31 #undef TARGET_PROFILING_NEEDS_GP
  32 #define TARGET_PROFILING_NEEDS_GP 1
  33
  34
  35 /* Provide a CPP_SPEC appropriate for NetBSD/alpha.  In addition to
  36    the standard NetBSD specs, we also handle Alpha FP mode indications.  */
  37
  38 #undef CPP_SPEC
  39 #define CPP_SPEC                                                        \
  40   "%{mieee:-D_IEEE_FP}                                                  \
  41    %{mieee-with-inexact:-D_IEEE_FP -D_IEEE_FP_INEXACT}                  \
  42    %(cpp_cpu) %(cpp_subtarget)"
  43
  44 #undef CPP_SUBTARGET_SPEC
  45 #define CPP_SUBTARGET_SPEC                                              \
  46   "%{posix:-D_POSIX_SOURCE}"
  47
  48
  49 /* Provide a LINK_SPEC appropriate for a NetBSD/alpha ELF target.
  50    This is a copy of LINK_SPEC from <netbsd-elf.h> tweaked for
  51    the alpha target.  */
  52
  53 #undef LINK_SPEC
  54 #define LINK_SPEC                                                       \
  55   "%{G*} %{relax:-relax}                                                \
  56    %{O*:-O3} %{!O*:-O1}                                                 \
  57    %{assert*} %{R*}                                                     \
  58    %{shared:-shared}                                                    \
  59    %{!shared:                                                           \
  60      -dc -dp                                                            \
  61      %{!nostdlib:                                                       \
  62        %{!r*:                                                           \
  63          %{!e*:-e __start}}}                                            \
  64      %{!static:                                                         \
  65        %{rdynamic:-export-dynamic}                                      \
  66        %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}       \
  67      %{static:-static}}"
  68
  69
  70 /* Provide an ENDFILE_SPEC appropriate for NetBSD/alpha ELF.  Here we
  71    add crtend.o, which provides part of the support for getting
  72    C++ file-scope static objects deconstructed after exiting "main".
  73
  74    We also need to handle the GCC option `-ffast-math'.  */
  75
  76 #undef ENDFILE_SPEC
  77 #define ENDFILE_SPEC            \
  78   "%{ffast-math|funsafe-math-optimizations:crtfm%O%s} \
  79    %{!shared:crtend%O%s} %{shared:crtendS%O%s}"
  80
  81
  82 /* Make gcc agree with <machine/ansi.h> */
  83
  84 #undef WCHAR_TYPE
  85 #define WCHAR_TYPE "int"
  86
  87 #undef WCHAR_UNSIGNED
  88 #define WCHAR_UNSIGNED 0
  89
  90 #undef WCHAR_TYPE_SIZE
  91 #define WCHAR_TYPE_SIZE 32
  92
  93 #undef WINT_TYPE
  94 #define WINT_TYPE "int"
  95
  96 #undef TARGET_VERSION
  97 #define TARGET_VERSION fprintf (stderr, " (NetBSD/alpha ELF)");