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 #define TARGET_OS_CPP_BUILTINS() \ 24 do \ 25 { \ 26 NETBSD_OS_CPP_BUILTINS_ELF(); \ 27 if (TARGET_64BIT) \ 28 NETBSD_OS_CPP_BUILTINS_LP64(); \ 29 } \ 30 while (0) 31 32 33 /* Extra specs needed for NetBSD/x86-64 ELF. */ 34 35 #undef SUBTARGET_EXTRA_SPECS 36 #define SUBTARGET_EXTRA_SPECS \ 37 { "netbsd_cpp_spec", NETBSD_CPP_SPEC }, \ 38 { "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \ 39 { "netbsd_entry_point", NETBSD_ENTRY_POINT }, 40 41 42 /* Provide a LINK_SPEC appropriate for a NetBSD/x86-64 ELF target. */ 43 44 #undef LINK_SPEC 45 #define LINK_SPEC \ 46 "%{m32:-m elf_i386} \ 47 %{m64:-m elf_x86_64} \ 48 %(netbsd_link_spec)" 49 50 #define NETBSD_ENTRY_POINT "_start" 51 52 53 /* Provide a CPP_SPEC appropriate for NetBSD. */ 54 55 #undef CPP_SPEC 56 #define CPP_SPEC "%(netbsd_cpp_spec)" 57 58 59 /* Output assembler code to FILE to call the profiler. */ 60 61 #undef FUNCTION_PROFILER 62 #define FUNCTION_PROFILER(FILE, LABELNO) \ 63 { \ 64 if (TARGET_64BIT && flag_pic) \ 65 fprintf (FILE, "\tcall *__mcount@PLT\n"); \ 66 else if (flag_pic) \ 67 fprintf (FILE, "\tcall *__mcount@PLT\n"); \ 68 else \ 69 fprintf (FILE, "\tcall __mcount\n"); \ 70 } 71 72 /* Attempt to enable execute permissions on the stack. */ 73 #define TRANSFER_FROM_TRAMPOLINE NETBSD_ENABLE_EXECUTE_STACK 74 75 #define TARGET_VERSION fprintf (stderr, " (NetBSD/x86_64 ELF)"); 76