1 /* Definitions of target machine for GCC, 2 for i386/ELF NetBSD systems. 3 Copyright (C) 2001-2015 Free Software Foundation, Inc. 4 Contributed by matthew green <mrg@eterna.com.au> 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/i386 ELF target. */ 31 32 #undef LINK_SPEC 33 #define LINK_SPEC NETBSD_LINK_SPEC_ELF 34 35 #define NETBSD_ENTRY_POINT "__start" 36 37 38 /* Provide a CPP_SPEC appropriate for NetBSD. */ 39 40 #undef CPP_SPEC 41 #define CPP_SPEC "%(netbsd_cpp_spec)" 42 43 44 /* Make gcc agree with <machine/ansi.h> */ 45 46 #undef SIZE_TYPE 47 #define SIZE_TYPE "unsigned int" 48 49 #undef PTRDIFF_TYPE 50 #define PTRDIFF_TYPE "int" 51 52 #undef ASM_APP_ON 53 #define ASM_APP_ON "#APP\n" 54 55 #undef ASM_APP_OFF 56 #define ASM_APP_OFF "#NO_APP\n" 57 58 #undef ASM_COMMENT_START 59 #define ASM_COMMENT_START "#" 60 61 #undef DBX_REGISTER_NUMBER 62 #define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n] 63 64 65 /* Output assembler code to FILE to call the profiler. */ 66 67 #undef NO_PROFILE_COUNTERS 68 #define NO_PROFILE_COUNTERS 1 69 70 #undef FUNCTION_PROFILER 71 #define FUNCTION_PROFILER(FILE, LABELNO) \ 72 { \ 73 if (flag_pic) \ 74 fprintf (FILE, "\tcall __mcount@PLT\n"); \ 75 else \ 76 fprintf (FILE, "\tcall __mcount\n"); \ 77 } 78 79 80 #undef HAS_INIT_SECTION 81 82 /* This is how we tell the assembler that two symbols have the same value. */ 83 84 #define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \ 85 do { assemble_name(FILE, NAME1); \ 86 fputs(" = ", FILE); \ 87 assemble_name(FILE, NAME2); \ 88 fputc('\n', FILE); } while (0) 89 90 /* A C statement to output to the stdio stream FILE an assembler 91 command to advance the location counter to a multiple of 1<<LOG 92 bytes if it is within MAX_SKIP bytes. 93 94 This is used to align code labels according to Intel recommendations. */ 95 96 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN 97 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP) \ 98 if ((LOG) != 0) { \ 99 if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ 100 else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ 101 } 102 #endif 103 104 /* We always use gas here, so we don't worry about ECOFF assembler 105 problems. */ 106 #undef TARGET_GAS 107 #define TARGET_GAS 1 108 109 /* Default to pcc-struct-return, because this is the ELF abi and 110 we don't care about compatibility with older gcc versions. */ 111 #define DEFAULT_PCC_STRUCT_RETURN 1 112 113 #define IX86_MAYBE_NO_LIBGCC_TFMODE 114 115 /* Preserve i386 psABI */ 116 #undef PREFERRED_STACK_BOUNDARY_DEFAULT 117 #define PREFERRED_STACK_BOUNDARY_DEFAULT MIN_STACK_BOUNDARY 118