gcc/config/alpha/netbsd.h

   1 /* Definitions of target machine for GNU compiler,
   2    for Alpha NetBSD systems.
   3    Copyright (C) 1998-2018 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC 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 3, or (at your option)
  10 any later version.
  11
  12 GCC 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 GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #define TARGET_OS_CPP_BUILTINS()                \
  22     do {                                        \
  23         NETBSD_OS_CPP_BUILTINS_ELF();           \
  24     } while (0)
  25
  26
  27 /* NetBSD doesn't use the LANGUAGE* built-ins.  */
  28 #undef SUBTARGET_LANGUAGE_CPP_BUILTINS
  29 #define SUBTARGET_LANGUAGE_CPP_BUILTINS()       /* nothing */
  30
  31
  32 /* Show that we need a GP when profiling.  */
  33 #undef TARGET_PROFILING_NEEDS_GP
  34 #define TARGET_PROFILING_NEEDS_GP 1
  35
  36
  37 /* Provide a CPP_SPEC appropriate for NetBSD/alpha.  We use
  38    this to pull in CPP specs that all NetBSD configurations need.  */
  39
  40 #undef CPP_SPEC
  41 #define CPP_SPEC NETBSD_CPP_SPEC
  42
  43 #undef EXTRA_SPECS
  44 #define EXTRA_SPECS                     \
  45   { "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \
  46   { "netbsd_entry_point", NETBSD_ENTRY_POINT }, \
  47   { "netbsd_endfile_spec", NETBSD_ENDFILE_SPEC },
  48
  49
  50 /* Provide a LINK_SPEC appropriate for a NetBSD/alpha ELF target.  */
  51
  52 #undef LINK_SPEC
  53 #define LINK_SPEC \
  54   "%{G*} %{relax:-relax} \
  55    %{O*:-O3} %{!O*:-O1} \
  56    %(netbsd_link_spec)"
  57
  58 #define NETBSD_ENTRY_POINT "__start"
  59
  60
  61 /* Provide an ENDFILE_SPEC appropriate for NetBSD/alpha ELF.  Here we
  62    add crtend.o, which provides part of the support for getting
  63    C++ file-scope static objects deconstructed after exiting "main".
  64
  65    We also need to handle the GCC option `-ffast-math'.  */
  66
  67 #undef ENDFILE_SPEC
  68 #define ENDFILE_SPEC            \
  69   "%{Ofast|ffast-math|funsafe-math-optimizations:crtfm%O%s} \
  70    %(netbsd_endfile_spec)"
  71
  72 #define HAVE_ENABLE_EXECUTE_STACK