1 /* Definitions for GCC. Part of the machine description for CRIS. 2 Copyright (C) 2001-2018 Free Software Foundation, Inc. 3 Contributed by Axis Communications. Written by Hans-Peter Nilsson. 4 5 This file is part of GCC. 6 7 GCC 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 3, or (at your option) 10 any later version. 11 12 GCC 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 GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 22 /* After the first "Node:" comment comes all preprocessor directives and 23 attached declarations described in the info files, the "Using and 24 Porting GCC" manual (uapgcc), in the same order as found in the "Target 25 macros" section in the gcc-2.9x CVS edition of 2000-03-17. FIXME: Not 26 really, but needs an update anyway. 27 28 There is no generic copy-of-uapgcc comment, you'll have to see uapgcc 29 for that. If applicable, there is a CRIS-specific comment. The order 30 of macro definitions follow the order in the manual. Every section in 31 the manual (node in the info pages) has an introductory `Node: 32 <subchapter>' comment. If no macros are defined for a section, only 33 the section-comment is present. */ 34 35 /* This file defines the macros for cris-axis-linux-gnu that are not 36 covered by cris.h, elfos.h and (config/)linux.h. */ 37 38 /* Make sure we have a valid TARGET_CPU_DEFAULT, so we can assume it 39 and take shortcuts below. */ 40 #ifndef TARGET_CPU_DEFAULT 41 #error "TARGET_CPU_DEFAULT not defined" 42 #elif (TARGET_CPU_DEFAULT+0) != 10 && (TARGET_CPU_DEFAULT+0) != 32 43 #error "TARGET_CPU_DEFAULT must be 10 or 32, or this file be updated" 44 #endif 45 46 /* Node: Instruction Output */ 47 48 #undef USER_LABEL_PREFIX 49 #define USER_LABEL_PREFIX "" 50 51 /* Node: Driver */ 52 /* These macros are CRIS-specific, but used in target driver macros. */ 53 54 #undef CRIS_CPP_SUBTARGET_SPEC 55 #if TARGET_CPU_DEFAULT == 32 56 # define CRIS_CPP_SUBTARGET_SPEC \ 57 "%{pthread:-D_REENTRANT}\ 58 %{!march=*:%{!mcpu=*:-D__arch_v32 -D__CRIS_arch_version=32}}" 59 #else 60 # define CRIS_CPP_SUBTARGET_SPEC \ 61 "%{pthread:-D_REENTRANT}\ 62 %{!march=*:%{!mcpu=*:-D__arch_v10 -D__CRIS_arch_version=10}}" 63 #endif 64 65 #undef CRIS_CC1_SUBTARGET_SPEC 66 #if TARGET_CPU_DEFAULT == 32 67 # define CRIS_CC1_SUBTARGET_SPEC \ 68 "%{!march=*:%{!mcpu=*:-march=v32}}" 69 #define CRIS_SUBTARGET_DEFAULT_ARCH MASK_AVOID_GOTPLT 70 #else 71 # define CRIS_CC1_SUBTARGET_SPEC \ 72 "%{!march=*:%{!mcpu=*:-march=v10}}" 73 #define CRIS_SUBTARGET_DEFAULT_ARCH 0 74 #endif 75 76 #undef CRIS_ASM_SUBTARGET_SPEC 77 #if TARGET_CPU_DEFAULT == 32 78 # define CRIS_ASM_SUBTARGET_SPEC \ 79 "--em=criself \ 80 %{!march=*:%{!mcpu=*:--march=v32}} \ 81 %{!fleading-underscore:--no-underscore}\ 82 %{" FPIE_OR_FPIC_SPEC ": --pic}" 83 #else 84 # define CRIS_ASM_SUBTARGET_SPEC \ 85 "--em=criself \ 86 %{!march=*:%{!mcpu=*:--march=v10}} \ 87 %{!fleading-underscore:--no-underscore}\ 88 %{" FPIE_OR_FPIC_SPEC ": --pic}" 89 #endif 90 91 /* Previously controlled by target_flags. */ 92 #undef TARGET_LINUX 93 #define TARGET_LINUX 1 94 95 #undef CRIS_SUBTARGET_DEFAULT 96 #define CRIS_SUBTARGET_DEFAULT \ 97 (MASK_SVINTO \ 98 + MASK_ETRAX4_ADD \ 99 + MASK_ALIGN_BY_32 \ 100 + CRIS_SUBTARGET_DEFAULT_ARCH) 101 102 #undef CRIS_DEFAULT_CPU_VERSION 103 #define CRIS_DEFAULT_CPU_VERSION CRIS_CPU_NG 104 105 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1" 106 107 #undef CRIS_LINK_SUBTARGET_SPEC 108 #define CRIS_LINK_SUBTARGET_SPEC \ 109 "-mcrislinux\ 110 %{shared} %{static}\ 111 %{symbolic:-Bdynamic} %{static:-Bstatic}\ 112 %{!shared:%{!static:\ 113 %{rdynamic:-export-dynamic}\ 114 -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}\ 115 %{!r:%{O2|O3: --gc-sections}}" 116 117 118 /* Node: Run-time Target */ 119 120 /* For the cris-*-linux* subtarget. */ 121 #undef TARGET_OS_CPP_BUILTINS 122 #define TARGET_OS_CPP_BUILTINS() \ 123 do \ 124 { \ 125 GNU_USER_TARGET_OS_CPP_BUILTINS(); \ 126 if (flag_leading_underscore <= 0) \ 127 builtin_define ("__NO_UNDERSCORES__"); \ 128 } \ 129 while (0) 130 131 /* Node: Type Layout */ 132 133 #undef SIZE_TYPE 134 #define SIZE_TYPE "unsigned int" 135 136 #undef PTRDIFF_TYPE 137 #define PTRDIFF_TYPE "int" 138 139 /* Node: Sections */ 140 141 /* GNU/Linux has crti and crtn and does not need the 142 CRT_CALL_STATIC_FUNCTION trick in cris.h. */ 143 #undef CRT_CALL_STATIC_FUNCTION 144 145 /* 146 * Local variables: 147 * eval: (c-set-style "gnu") 148 * indent-tabs-mode: t 149 * End: 150 */ 151