1 /* Configuration for an OpenBSD x86-64 target. 2 3 Copyright (C) 2003 Free Software Foundation, Inc. 4 5 This file is part of GNU CC. 6 7 GNU CC 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 GNU CC 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 GNU CC; see the file COPYING. If not, write to 19 the Free Software Foundation, 59 Temple Place - Suite 330, 20 Boston, MA 02111-1307, USA. */ 21 22 #undef TARGET_VERSION 23 #define TARGET_VERSION fprintf (stderr, " (OpenBSD/x86-64 ELF)") 24 25 /* This gets defined in tm.h->linux.h->svr4.h, and keeps us from using 26 libraries compiled with the native cc, so undef it. */ 27 #undef NO_DOLLAR_IN_LABEL 28 29 /* Override the default comment-starter of "/". */ 30 #undef ASM_COMMENT_START 31 #define ASM_COMMENT_START "#" 32 33 /* Run-time target specifications */ 34 35 #define TARGET_OS_CPP_BUILTINS() \ 36 do \ 37 { \ 38 OPENBSD_OS_CPP_BUILTINS_ELF(); \ 39 if (TARGET_64BIT) \ 40 OPENBSD_OS_CPP_BUILTINS_LP64(); \ 41 } \ 42 while (0) 43 44 /* As an elf system, we need crtbegin/crtend stuff. */ 45 #undef STARTFILE_SPEC 46 #define STARTFILE_SPEC "\ 47 %{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \ 48 crtbegin%O%s} %{shared:crtbeginS%O%s}" 49 #undef ENDFILE_SPEC 50 #define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}" 51 52 /* Layout of source language data types. */ 53 54 /* This must agree with <machine/_types.h> */ 55 #undef SIZE_TYPE 56 #define SIZE_TYPE "long unsigned int" 57 58 #undef PTRDIFF_TYPE 59 #define PTRDIFF_TYPE "long int" 60 61 #undef INTMAX_TYPE 62 #define INTMAX_TYPE "long long int" 63 64 #undef UINTMAX_TYPE 65 #define UINTMAX_TYPE "long long unsigned int" 66 67 #undef WCHAR_TYPE 68 #define WCHAR_TYPE "int" 69 70 #undef WCHAR_TYPE_SIZE 71 #define WCHAR_TYPE_SIZE 32 72 73 /* Assembler format: overall framework. */ 74 75 #undef ASM_APP_ON 76 #define ASM_APP_ON "#APP\n" 77 78 #undef ASM_APP_OFF 79 #define ASM_APP_OFF "#NO_APP\n" 80 81 #undef SET_ASM_OP 82 #define SET_ASM_OP "\t.set\t" 83 84 /* The following macros were originally stolen from i386v4.h. 85 These have to be defined to get PIC code correct. */ 86 87 /* Assembler format: dispatch tables. */ 88 89 /* Assembler format: sections. */ 90 91 /* Stack & calling: aggregate returns. */ 92 93 /* Don't default to pcc-struct-return, because gcc is the only compiler, and 94 we want to retain compatibility with older gcc versions. */ 95 #define DEFAULT_PCC_STRUCT_RETURN 0 96 97 /* Assembler format: alignment output. */ 98 99 /* Stack & calling: profiling. */ 100 101 /* OpenBSD's profiler recovers all information from the stack pointer. 102 The icky part is not here, but in machine/profile.h. */ 103 #undef FUNCTION_PROFILER 104 #define FUNCTION_PROFILER(FILE, LABELNO) \ 105 fputs (flag_pic ? "\tcall __mcount@PLT\n": "\tcall __mcount\n", FILE); 106 107 /* Assembler format: exception region output. */ 108 109 /* Assembler format: alignment output. */ 110 111 /* Note that we pick up ASM_OUTPUT_MAX_SKIP_ALIGN from i386/gas.h */ 112 113 /* Note that we pick up ASM_OUTPUT_MI_THUNK from unix.h. */ 114 115 #undef LINK_SPEC 116 #define LINK_SPEC \ 117 "%{!shared:%{!nostdlib:%{!r*:%{!e*:-e __start}}}} \ 118 %{shared:-shared} %{R*} \ 119 %{static:-Bstatic} \ 120 %{!static:-Bdynamic} \ 121 %{assert*} \ 122 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so}" 123 124 #define OBSD_HAS_CORRECT_SPECS 125 126 #undef JUMP_TABLES_IN_TEXT_SECTION 127 #define JUMP_TABLES_IN_TEXT_SECTION (flag_pic) 128