1 /* Definitions of target machine for GCC, 2 for x86-64/ELF NetBSD systems. 3 Copyright (C) 2002-2020 Free Software Foundation, Inc. 4 Contributed by Wasabi Systems, Inc. 5 6 This file is part of GCC. 7 8 GCC 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 3, or (at your option) 11 any later version. 12 13 GCC 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 GCC; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. */ 21 22 #define TARGET_OS_CPP_BUILTINS() \ 23 do \ 24 { \ 25 NETBSD_OS_CPP_BUILTINS_ELF(); \ 26 } \ 27 while (0) 28 29 30 /* Provide a LINK_SPEC appropriate for a NetBSD/x86-64 ELF target. */ 31 32 #undef LINK_SPEC 33 #define LINK_SPEC \ 34 "%{m32:-m elf_i386} \ 35 %{m64:-m elf_x86_64} \ 36 %(netbsd_link_spec)" 37 38 #define NETBSD_ENTRY_POINT "_start" 39 40 41 /* Provide a CPP_SPEC appropriate for NetBSD. */ 42 43 #undef CPP_SPEC 44 #define CPP_SPEC "%(netbsd_cpp_spec)" 45 46 47 /* Provide C11_SPEC/CC1PLUS_SPEC appropriate for NetBSD/x86-64. */ 48 #define NETBSD_CC1_CPU_SPEC " %(cc1_cpu) " 49 50 #undef CC1_SPEC 51 #define CC1_SPEC NETBSD_CC1_AND_CC1PLUS_SPEC NETBSD_CC1_CPU_SPEC 52 53 #undef CC1PLUS_SPEC 54 #define CC1PLUS_SPEC NETBSD_CC1_AND_CC1PLUS_SPEC NETBSD_CC1_CPU_SPEC 55 56 57 /* Output assembler code to FILE to call the profiler. */ 58 59 #undef FUNCTION_PROFILER 60 #define FUNCTION_PROFILER(FILE, LABELNO) \ 61 { \ 62 if (TARGET_64BIT && flag_pic) \ 63 fprintf (FILE, "\tcall __mcount@PLT\n"); \ 64 else if (flag_pic) \ 65 fprintf (FILE, "\tcall __mcount@PLT\n"); \ 66 else \ 67 fprintf (FILE, "\tcall __mcount\n"); \ 68 } 69 70 /* Preserve i386 psABI */ 71 #undef PREFERRED_STACK_BOUNDARY_DEFAULT 72 #define PREFERRED_STACK_BOUNDARY_DEFAULT \ 73 ((TARGET_64BIT || TARGET_SSE) ? 128 : 32) 74 75 #define HAVE_ENABLE_EXECUTE_STACK 76 77 /* NetBSD/x86 on 32-bit places the ASAN shadow map at 0x40000000. */ 78 #undef X86_32_ASAN_BIT_OFFSET 79 #define X86_32_ASAN_BIT_OFFSET 30 80