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 6This file is part of GCC. 7 8GCC is free software; you can redistribute it and/or modify 9it under the terms of the GNU General Public License as published by 10the Free Software Foundation; either version 3, or (at your option) 11any later version. 12 13GCC is distributed in the hope that it will be useful, 14but WITHOUT ANY WARRANTY; without even the implied warranty of 15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16GNU General Public License for more details. 17 18You should have received a copy of the GNU General Public License 19along 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