gcc/config/i386/netbsd64.h

   1 /* Definitions of target machine for GNU compiler,
   2    for x86-64/ELF NetBSD systems.
   3    Copyright (C) 2002 Free Software Foundation, Inc.
   4    Contributed by Wasabi Systems, Inc.
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC 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, or (at your option)
  11 any later version.
  12
  13 GNU CC 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 GNU CC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA.  */
  22
  23
  24 /* Provide a LINK_SPEC appropriate for a NetBSD/x86-64 ELF target.
  25    This is a copy of LINK_SPEC from <netbsd-elf.h> tweaked for
  26    the x86-64 target.  */
  27
  28 #undef LINK_SPEC
  29 #define LINK_SPEC                                                       \
  30   "%{!m32:-m elf_x86_64}                                                \
  31    %{m32:-m elf_i386}                                                   \
  32    %{assert*} %{R*}                                                     \
  33    %{shared:-shared}                                                    \
  34    %{!shared:                                                           \
  35      -dc -dp                                                            \
  36      %{!nostdlib:                                                       \
  37        %{!r*:                                                           \
  38           %{!e*:-e _start}}}                                            \
  39      %{!static:                                                         \
  40        %{rdynamic:-export-dynamic}                                      \
  41        %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}       \
  42      %{static:-static}}"
  43
  44
  45 /* Names to predefine in the preprocessor for this target machine.  */
  46
  47 #define CPP_PREDEFINES                                                  \
  48   "-D__NetBSD__ -D__ELF__ -Asystem=unix -Asystem=NetBSD"
  49
  50
  51 /* Provide some extra CPP specs needed by NetBSD/x86_64.  */
  52 #define CPP_LP64_SPEC "%{!m32:-D_LP64}"
  53
  54 #define CPP_SUBTARGET_SPEC "%(cpp_lp64)"
  55
  56 #undef SUBTARGET_EXTRA_SPECS
  57 #define SUBTARGET_EXTRA_SPECS                                           \
  58   { "cpp_lp64", CPP_LP64_SPEC },                                        \
  59   { "cpp_subtarget", CPP_SUBTARGET_SPEC },
  60
  61
  62 /* Provide a CPP_SPEC appropriate for NetBSD.  Currently we deal with
  63    our subtarget specs and the GCC option `-posix'.  */
  64
  65 #undef CPP_SPEC
  66 #define CPP_SPEC "%(cpp_cpu) %(cpp_subtarget) %{posix:-D_POSIX_SOURCE}"
  67
  68
  69 /* Output assembler code to FILE to call the profiler.  */
  70
  71 #undef FUNCTION_PROFILER
  72 #define FUNCTION_PROFILER(FILE, LABELNO)                                \
  73 {                                                                       \
  74   if (TARGET_64BIT && flag_pic)                                         \
  75     fprintf (FILE, "\tcall *__mcount@PLT\n");                           \
  76   else if (flag_pic)                                                    \
  77     fprintf (FILE, "\tcall *__mcount@PLT\n");                           \
  78   else                                                                  \
  79     fprintf (FILE, "\tcall __mcount\n");                                \
  80 }
  81
  82
  83 #define TARGET_VERSION fprintf (stderr, " (NetBSD/x86_64 ELF)");