1 /* Definitions of target machine for GNU compiler, 2 for Alpha NetBSD systems. 3 Copyright (C) 1998, 2002, 2003, 2004, 2005 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 2, 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 COPYING. If not, write to 19 the Free Software Foundation, 51 Franklin Street, Fifth Floor, 20 Boston, MA 02110-1301, USA. */ 21 22 #undef TARGET_DEFAULT 23 #define TARGET_DEFAULT (MASK_FPREGS | MASK_GAS) 24 25 #define TARGET_OS_CPP_BUILTINS() \ 26 do { \ 27 NETBSD_OS_CPP_BUILTINS_ELF(); \ 28 } while (0) 29 30 31 /* NetBSD doesn't use the LANGUAGE* built-ins. */ 32 #undef SUBTARGET_LANGUAGE_CPP_BUILTINS 33 #define SUBTARGET_LANGUAGE_CPP_BUILTINS() /* nothing */ 34 35 36 /* Show that we need a GP when profiling. */ 37 #undef TARGET_PROFILING_NEEDS_GP 38 #define TARGET_PROFILING_NEEDS_GP 1 39 40 41 /* Provide a CPP_SUBTARGET_SPEC appropriate for NetBSD/alpha. We use 42 this to pull in CPP specs that all NetBSD configurations need. */ 43 44 #undef CPP_SUBTARGET_SPEC 45 #define CPP_SUBTARGET_SPEC NETBSD_CPP_SPEC 46 47 #undef SUBTARGET_EXTRA_SPECS 48 #define SUBTARGET_EXTRA_SPECS \ 49 { "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \ 50 { "netbsd_entry_point", NETBSD_ENTRY_POINT }, \ 51 { "netbsd_endfile_spec", NETBSD_ENDFILE_SPEC }, 52 53 54 /* Provide a LINK_SPEC appropriate for a NetBSD/alpha ELF target. */ 55 56 #undef LINK_SPEC 57 #define LINK_SPEC \ 58 "%{G*} %{relax:-relax} \ 59 %{O*:-O3} %{!O*:-O1} \ 60 %(netbsd_link_spec)" 61 62 #define NETBSD_ENTRY_POINT "__start" 63 64 65 /* Provide an ENDFILE_SPEC appropriate for NetBSD/alpha ELF. Here we 66 add crtend.o, which provides part of the support for getting 67 C++ file-scope static objects deconstructed after exiting "main". 68 69 We also need to handle the GCC option `-ffast-math'. */ 70 71 #undef ENDFILE_SPEC 72 #define ENDFILE_SPEC \ 73 "%{ffast-math|funsafe-math-optimizations:crtfm%O%s} \ 74 %(netbsd_endfile_spec)" 75 76 77 /* Attempt to enable execute permissions on the stack. */ 78 79 #define ENABLE_EXECUTE_STACK NETBSD_ENABLE_EXECUTE_STACK 80 81 82 #undef TARGET_VERSION 83 #define TARGET_VERSION fprintf (stderr, " (NetBSD/alpha ELF)"); 84