1 /* Definitions of target machine for GCC, for ELF on NetBSD/sparc 2 and NetBSD/sparc64. 3 Copyright (C) 2002-2021 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 if (TARGET_ARCH64) \ 27 { \ 28 builtin_define ("__sparc64__"); \ 29 builtin_define ("__sparc_v9__"); \ 30 builtin_define ("__sparcv9"); \ 31 } \ 32 else \ 33 builtin_define ("__sparc"); \ 34 builtin_define ("__sparc__"); \ 35 } \ 36 while (0) 37 38 /* CPP defines used by all NetBSD targets. */ 39 #undef CPP_SUBTARGET_SPEC 40 #define CPP_SUBTARGET_SPEC "%(netbsd_cpp_spec)" 41 42 /* SIZE_TYPE and PTRDIFF_TYPE are wrong from sparc/sparc.h. */ 43 #undef SIZE_TYPE 44 #define SIZE_TYPE "long unsigned int" 45 46 #undef PTRDIFF_TYPE 47 #define PTRDIFF_TYPE "long int" 48 49 /* This is the char to use for continuation (in case we need to turn 50 continuation back on). */ 51 #undef DBX_CONTIN_CHAR 52 #define DBX_CONTIN_CHAR '?' 53 54 #undef LOCAL_LABEL_PREFIX 55 #define LOCAL_LABEL_PREFIX "." 56 57 /* This is how to store into the string LABEL 58 the symbol_ref name of an internal numbered label where 59 PREFIX is the class of label and NUM is the number within the class. 60 This is suitable for output with `assemble_name'. */ 61 62 #undef ASM_GENERATE_INTERNAL_LABEL 63 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ 64 sprintf ((LABEL), "*.L%s%ld", (PREFIX), (long)(NUM)) 65 66 #undef USER_LABEL_PREFIX 67 #define USER_LABEL_PREFIX "" 68 69 #undef ASM_SPEC 70 #define ASM_SPEC "%{" FPIE_OR_FPIC_SPEC ":-K PIC} \ 71 %(asm_cpu) %(asm_arch) %(asm_relax)" 72 73 #undef STDC_0_IN_SYSTEM_HEADERS 74 75 #define HAVE_ENABLE_EXECUTE_STACK 76 77 /* Below here exists the merged NetBSD/sparc & NetBSD/sparc64 compiler 78 description, allowing one to build 32-bit or 64-bit applications 79 on either. We define the sparc & sparc64 versions of things, 80 occasionally a neutral version (should be the same as "netbsd-elf.h") 81 and then based on SPARC_BI_ARCH, DEFAULT_ARCH32_P, and TARGET_CPU_DEFAULT, 82 we choose the correct version. */ 83 84 /* We use the default NetBSD ELF STARTFILE_SPEC and ENDFILE_SPEC 85 definitions, even for the SPARC_BI_ARCH compiler, because NetBSD does 86 not have a default place to find these libraries.. */ 87 88 /* TARGET_CPU_DEFAULT is set in Makefile.in. We test for 64-bit default 89 platform here. */ 90 91 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \ 92 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc 93 /* A 64 bit v9 compiler with stack-bias, 94 in a Medium/Low code model environment. */ 95 96 #undef TARGET_DEFAULT 97 #define TARGET_DEFAULT \ 98 (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \ 99 + MASK_STACK_BIAS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128) 100 101 #undef SPARC_DEFAULT_CMODEL 102 #define SPARC_DEFAULT_CMODEL CM_MEDANY 103 104 #endif 105 106 /* CC1_SPEC for NetBSD/sparc. */ 107 #define CC1_SPEC32 \ 108 "%{m32:%{m64:%emay not use both -m32 and -m64}} \ 109 %{m64: \ 110 -mptr64 -mstack-bias -mno-v8plus -mlong-double-128 \ 111 %{!mcpu*:%{!mv8plus:-mcpu=ultrasparc}} \ 112 %{!mno-vis:%{!mcpu=v9:-mvis}} \ 113 %{p:-mcmodel=medlow} \ 114 %{pg:-mcmodel=medlow}}" 115 116 #define CC1_SPEC64 \ 117 "%{m32:%{m64:%emay not use both -m32 and -m64}} \ 118 %{m32: \ 119 -mptr32 -mno-stack-bias \ 120 %{!mlong-double-128:-mlong-double-64} \ 121 %{!mcpu*:%{!mv8plus:-mcpu=cypress}}} \ 122 %{!m32: \ 123 %{p:-mcmodel=medlow} \ 124 %{pg:-mcmodel=medlow}}" 125 126 /* Make sure we use the right output format. Pick a default and then 127 make sure -m32/-m64 switch to the right one. */ 128 129 #define LINK_ARCH32_SPEC "-m elf32_sparc" 130 131 #define LINK_ARCH64_SPEC "-m elf64_sparc" 132 133 #define LINK_ARCH_SPEC \ 134 "%{m32:%(link_arch32)} \ 135 %{m64:%(link_arch64)} \ 136 %{!m32:%{!m64:%(link_arch_default)}}" 137 138 #undef LINK_SPEC 139 #define LINK_SPEC \ 140 "%(link_arch) \ 141 %{!mno-relax:%{!r:-relax}} \ 142 %(netbsd_link_spec)" 143 144 #define NETBSD_ENTRY_POINT "__start" 145 146 #if DEFAULT_ARCH32_P 147 #define LINK_ARCH_DEFAULT_SPEC LINK_ARCH32_SPEC 148 #else 149 #define LINK_ARCH_DEFAULT_SPEC LINK_ARCH64_SPEC 150 #endif 151 152 /* What extra spec entries do we need? */ 153 #undef SUBTARGET_EXTRA_SPECS 154 #define SUBTARGET_EXTRA_SPECS \ 155 { "link_arch32", LINK_ARCH32_SPEC }, \ 156 { "link_arch64", LINK_ARCH64_SPEC }, \ 157 { "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \ 158 { "link_arch", LINK_ARCH_SPEC }, \ 159 { "netbsd_cpp_spec", NETBSD_CPP_SPEC }, \ 160 { "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \ 161 { "netbsd_entry_point", NETBSD_ENTRY_POINT }, 162 163 164 /* Build a compiler that supports -m32 and -m64? */ 165 166 #ifdef SPARC_BI_ARCH 167 168 #undef LONG_DOUBLE_TYPE_SIZE 169 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64) 170 171 #undef CC1_SPEC 172 #if DEFAULT_ARCH32_P 173 #define CC1_SPEC CC1_SPEC32 174 #else 175 #define CC1_SPEC CC1_SPEC64 176 #endif 177 178 #if DEFAULT_ARCH32_P 179 #define MULTILIB_DEFAULTS { "m32" } 180 #else 181 #define MULTILIB_DEFAULTS { "m64" } 182 #endif 183 184 #else /* SPARC_BI_ARCH */ 185 186 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \ 187 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc 188 189 #undef LONG_DOUBLE_TYPE_SIZE 190 #define LONG_DOUBLE_TYPE_SIZE 128 191 192 #undef CC1_SPEC 193 #define CC1_SPEC CC1_SPEC64 194 195 #else /* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \ 196 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */ 197 198 /* A 32-bit only compiler. NetBSD don't support 128 bit `long double' 199 for 32-bit code, unlike Solaris. */ 200 201 #undef LONG_DOUBLE_TYPE_SIZE 202 #define LONG_DOUBLE_TYPE_SIZE 64 203 204 #undef CC1_SPEC 205 #define CC1_SPEC CC1_SPEC32 206 207 #endif /* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \ 208 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */ 209 210 #endif /* SPARC_BI_ARCH */ 211 212 /* We use GNU ld so undefine this so that attribute((init_priority)) works. */ 213 #undef CTORS_SECTION_ASM_OP 214 #undef DTORS_SECTION_ASM_OP 215