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1 /* Definitions of target machine for GNU compiler,
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2 for Alpha NetBSD systems.
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3 Copyright (C) 1998, 2002, 2003, 2004, 2005, 2007
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4 Free Software Foundation, Inc.
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify
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9 it under the terms of the GNU General Public License as published by
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10 the Free Software Foundation; either version 3, or (at your option)
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11 any later version.
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12
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13 GCC is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU General Public License for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 #undef TARGET_DEFAULT
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23 #define TARGET_DEFAULT (MASK_FPREGS | MASK_GAS)
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24
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25 #define TARGET_OS_CPP_BUILTINS() \
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26 do { \
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27 NETBSD_OS_CPP_BUILTINS_ELF(); \
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28 } while (0)
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29
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30
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31 /* NetBSD doesn't use the LANGUAGE* built-ins. */
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32 #undef SUBTARGET_LANGUAGE_CPP_BUILTINS
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33 #define SUBTARGET_LANGUAGE_CPP_BUILTINS() /* nothing */
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34
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35
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36 /* Show that we need a GP when profiling. */
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37 #undef TARGET_PROFILING_NEEDS_GP
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38 #define TARGET_PROFILING_NEEDS_GP 1
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39
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40
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41 /* Provide a CPP_SPEC appropriate for NetBSD/alpha. We use
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42 this to pull in CPP specs that all NetBSD configurations need. */
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43
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44 #undef CPP_SPEC
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45 #define CPP_SPEC NETBSD_CPP_SPEC
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46
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47 #undef EXTRA_SPECS
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48 #define EXTRA_SPECS \
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49 { "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \
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50 { "netbsd_entry_point", NETBSD_ENTRY_POINT }, \
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51 { "netbsd_endfile_spec", NETBSD_ENDFILE_SPEC },
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52
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53
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54 /* Provide a LINK_SPEC appropriate for a NetBSD/alpha ELF target. */
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55
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56 #undef LINK_SPEC
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57 #define LINK_SPEC \
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58 "%{G*} %{relax:-relax} \
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59 %{O*:-O3} %{!O*:-O1} \
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60 %(netbsd_link_spec)"
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61
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62 #define NETBSD_ENTRY_POINT "__start"
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63
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64
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65 /* Provide an ENDFILE_SPEC appropriate for NetBSD/alpha ELF. Here we
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66 add crtend.o, which provides part of the support for getting
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67 C++ file-scope static objects deconstructed after exiting "main".
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68
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69 We also need to handle the GCC option `-ffast-math'. */
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70
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71 #undef ENDFILE_SPEC
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72 #define ENDFILE_SPEC \
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73 "%{ffast-math|funsafe-math-optimizations:crtfm%O%s} \
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74 %(netbsd_endfile_spec)"
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75
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76
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77 /* Attempt to enable execute permissions on the stack. */
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78
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79 #define ENABLE_EXECUTE_STACK NETBSD_ENABLE_EXECUTE_STACK
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80
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81
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82 #undef TARGET_VERSION
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83 #define TARGET_VERSION fprintf (stderr, " (NetBSD/alpha ELF)");
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