Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/i386/sol2.h @ 145:1830386684a0
gcc-9.2.0
| author | anatofuz |
|---|---|
| date | Thu, 13 Feb 2020 11:34:05 +0900 |
| parents | 84e7813d76e9 |
| children |
| rev | line source |
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| 0 | 1 /* Target definitions for GCC for Intel 80386 running Solaris 2 |
| 145 | 2 Copyright (C) 1993-2020 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Fred Fish (fnf@cygnus.com). |
| 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 | |
| 111 | 21 #define SUBTARGET_OPTIMIZATION_OPTIONS \ |
| 22 { OPT_LEVELS_1_PLUS, OPT_momit_leaf_frame_pointer, NULL, 1 } | |
| 23 | |
| 24 /* 32-bit Solaris/x86 only guarantees 4-byte stack alignment as required by | |
| 25 the i386 psABI, so realign it as necessary for SSE instructions. */ | |
| 26 #undef STACK_REALIGN_DEFAULT | |
| 27 #define STACK_REALIGN_DEFAULT (TARGET_64BIT ? 0 : 1) | |
| 0 | 28 |
| 145 | 29 /* Old versions of the Solaris assembler cannot handle the difference of |
| 111 | 30 labels in different sections, so force DW_EH_PE_datarel if so. */ |
| 31 #ifndef HAVE_AS_IX86_DIFF_SECT_DELTA | |
| 0 | 32 #undef ASM_PREFERRED_EH_DATA_FORMAT |
| 33 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ | |
| 34 (flag_pic ? ((GLOBAL ? DW_EH_PE_indirect : 0) \ | |
| 35 | (TARGET_64BIT ? DW_EH_PE_pcrel | DW_EH_PE_sdata4 \ | |
| 36 : DW_EH_PE_datarel)) \ | |
| 37 : DW_EH_PE_absptr) | |
| 111 | 38 #endif |
| 0 | 39 |
| 40 /* The Solaris linker will not merge a read-only .eh_frame section | |
| 41 with a read-write .eh_frame section. None of the encodings used | |
| 42 with non-PIC code require runtime relocations. In 64-bit mode, | |
| 43 since there is no backwards compatibility issue, we use a read-only | |
| 44 section for .eh_frame. In 32-bit mode, we use a writable .eh_frame | |
| 45 section in order to be compatible with G++ for Solaris x86. */ | |
| 46 #undef EH_TABLES_CAN_BE_READ_ONLY | |
| 47 #define EH_TABLES_CAN_BE_READ_ONLY (TARGET_64BIT) | |
| 48 | |
| 111 | 49 /* Follow Sun requirements for TLS code sequences and use Sun assembler TLS |
| 50 syntax. */ | |
| 51 #undef TARGET_SUN_TLS | |
| 52 #define TARGET_SUN_TLS 1 | |
| 53 | |
| 0 | 54 #undef CPP_SPEC |
| 131 | 55 #define CPP_SPEC "%(cpp_subtarget)" |
| 0 | 56 |
| 145 | 57 #undef CC1_SPEC |
| 58 #define CC1_SPEC "%(cc1_cpu) " ASAN_CC1_SPEC \ | |
| 59 " %{mx32:%e-mx32 is not supported on Solaris}" | |
| 60 | |
| 111 | 61 /* GNU as understands --32 and --64, but the native Solaris |
| 62 assembler requires -xarch=generic or -xarch=generic64 instead. */ | |
| 63 #ifdef USE_GAS | |
| 64 #define ASM_CPU32_DEFAULT_SPEC "--32" | |
| 65 #define ASM_CPU64_DEFAULT_SPEC "--64" | |
| 66 #else | |
| 67 #define ASM_CPU32_DEFAULT_SPEC "-xarch=generic" | |
| 68 #define ASM_CPU64_DEFAULT_SPEC "-xarch=generic64" | |
| 69 #endif | |
| 70 | |
| 71 /* Since Studio 12.6, as needs -xbrace_comment=no so its AVX512 syntax is | |
| 72 fully compatible with gas. */ | |
| 73 #ifdef HAVE_AS_XBRACE_COMMENT_OPTION | |
| 74 #define ASM_XBRACE_COMMENT_SPEC "-xbrace_comment=no" | |
| 75 #else | |
| 76 #define ASM_XBRACE_COMMENT_SPEC "" | |
| 77 #endif | |
| 78 | |
| 79 #undef ASM_CPU_SPEC | |
| 80 #define ASM_CPU_SPEC "%(asm_cpu_default) " ASM_XBRACE_COMMENT_SPEC | |
| 81 | |
| 82 /* Don't include ASM_PIC_SPEC. While the Solaris 10+ assembler accepts -K PIC, | |
| 83 it gives many warnings: | |
| 84 Absolute relocation is used for symbol "<symbol>" | |
| 85 GNU as doesn't recognize -K at all. */ | |
| 0 | 86 #undef ASM_SPEC |
| 111 | 87 #define ASM_SPEC ASM_SPEC_BASE |
| 0 | 88 |
| 111 | 89 #define DEFAULT_ARCH32_P !TARGET_64BIT_DEFAULT |
| 90 | |
| 91 #define ARCH64_SUBDIR "amd64" | |
| 92 | |
| 93 #ifdef USE_GLD | |
| 94 /* Since binutils 2.21, GNU ld supports new *_sol2 emulations to strictly | |
| 95 follow the Solaris 2 ABI. Prefer them if present. */ | |
| 96 #ifdef HAVE_LD_SOL2_EMULATION | |
| 97 #define ARCH32_EMULATION "elf_i386_sol2" | |
| 98 #define ARCH64_EMULATION "elf_x86_64_sol2" | |
| 99 #else | |
| 100 #define ARCH32_EMULATION "elf_i386" | |
| 101 #define ARCH64_EMULATION "elf_x86_64" | |
| 102 #endif | |
| 103 #endif | |
| 104 | |
| 105 #define ENDFILE_ARCH_SPEC \ | |
| 106 "%{mpc32:crtprec32.o%s} \ | |
| 107 %{mpc64:crtprec64.o%s} \ | |
| 108 %{mpc80:crtprec80.o%s}" | |
| 109 | |
| 110 #define SUBTARGET_CPU_EXTRA_SPECS \ | |
| 111 { "cpp_subtarget", CPP_SUBTARGET_SPEC }, \ | |
| 112 { "asm_cpu", ASM_CPU_SPEC }, \ | |
| 113 { "asm_cpu_default", ASM_CPU_DEFAULT_SPEC }, \ | |
| 114 | |
| 115 /* Register the Solaris-specific #pragma directives. */ | |
| 116 #define REGISTER_SUBTARGET_PRAGMAS() solaris_register_pragmas () | |
| 0 | 117 |
| 118 #undef LOCAL_LABEL_PREFIX | |
| 119 #define LOCAL_LABEL_PREFIX "." | |
| 120 | |
| 121 /* The 32-bit Solaris assembler does not support .quad. Do not use it. */ | |
|
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122 #ifndef HAVE_AS_IX86_QUAD |
| 0 | 123 #undef ASM_QUAD |
| 124 #endif | |
| 125 | |
| 111 | 126 /* The native Solaris assembler can't calculate the difference between |
| 127 symbols in different sections, which causes problems for -fPIC jump | |
| 128 tables in .rodata. */ | |
| 129 #ifndef HAVE_AS_IX86_DIFF_SECT_DELTA | |
| 130 #undef JUMP_TABLES_IN_TEXT_SECTION | |
| 131 #define JUMP_TABLES_IN_TEXT_SECTION 1 | |
| 132 | |
| 133 /* The native Solaris assembler cannot handle the SYMBOL-. syntax, but | |
| 134 requires SYMBOL@rel/@rel64 instead. */ | |
| 135 #define ASM_OUTPUT_DWARF_PCREL(FILE, SIZE, LABEL) \ | |
| 136 do { \ | |
| 137 fputs (integer_asm_op (SIZE, FALSE), FILE); \ | |
| 138 assemble_name (FILE, LABEL); \ | |
| 139 fputs (SIZE == 8 ? "@rel64" : "@rel", FILE); \ | |
| 140 } while (0) | |
| 141 #endif | |
| 142 | |
| 0 | 143 /* The Solaris assembler wants a .local for non-exported aliases. */ |
| 144 #define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \ | |
| 145 do { \ | |
| 111 | 146 tree id = DECL_ASSEMBLER_NAME (DECL); \ |
| 147 ultimate_transparent_alias_target (&id); \ | |
| 148 const char *declname = IDENTIFIER_POINTER (id); \ | |
| 0 | 149 ASM_OUTPUT_DEF ((FILE), declname, \ |
| 150 IDENTIFIER_POINTER (TARGET)); \ | |
| 151 if (! TREE_PUBLIC (DECL)) \ | |
| 152 { \ | |
| 153 fprintf ((FILE), "%s", LOCAL_ASM_OP); \ | |
| 154 assemble_name ((FILE), declname); \ | |
| 155 fprintf ((FILE), "\n"); \ | |
| 156 } \ | |
| 157 } while (0) | |
| 158 | |
| 111 | 159 #ifndef USE_GAS |
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160 /* The Sun assembler uses .tcomm for TLS common sections. */ |
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161 #define TLS_COMMON_ASM_OP ".tcomm" |
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162 |
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163 /* Similar to the Sun assembler on SPARC, the native assembler requires |
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164 TLS objects to be declared as @tls_obj (not @tls_object). Unlike SPARC, |
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165 gas doesn't understand this variant. */ |
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166 #undef ASM_DECLARE_OBJECT_NAME |
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167 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ |
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168 do \ |
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169 { \ |
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170 HOST_WIDE_INT size; \ |
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171 \ |
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172 if (targetm.have_tls && DECL_THREAD_LOCAL_P (DECL)) \ |
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173 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "tls_obj"); \ |
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174 else \ |
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175 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ |
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176 \ |
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177 size_directive_output = 0; \ |
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178 if (!flag_inhibit_size_directive \ |
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179 && (DECL) && DECL_SIZE (DECL)) \ |
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180 { \ |
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181 size_directive_output = 1; \ |
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182 size = int_size_in_bytes (TREE_TYPE (DECL)); \ |
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183 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \ |
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184 } \ |
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185 \ |
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186 ASM_OUTPUT_LABEL (FILE, NAME); \ |
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187 } \ |
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188 while (0) |
| 111 | 189 #endif /* !USE_GAS */ |
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190 |
| 111 | 191 /* As in sparc/sol2.h, override the default from i386/x86-64.h to work |
| 192 around Sun as TLS bug. */ | |
| 193 #undef ASM_OUTPUT_ALIGNED_DECL_COMMON | |
| 194 #define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 195 do \ | |
| 196 { \ | |
| 197 if (TARGET_SUN_TLS \ | |
| 198 && in_section \ | |
| 199 && ((in_section->common.flags & SECTION_TLS) == SECTION_TLS)) \ | |
| 200 switch_to_section (bss_section); \ | |
| 201 x86_elf_aligned_decl_common (FILE, DECL, NAME, SIZE, ALIGN); \ | |
| 202 } \ | |
| 203 while (0) | |
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204 |
| 0 | 205 /* Output a simple call for .init/.fini. */ |
| 206 #define ASM_OUTPUT_CALL(FILE, FN) \ | |
| 207 do \ | |
| 208 { \ | |
| 209 fprintf (FILE, "\tcall\t"); \ | |
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210 ix86_print_operand (FILE, XEXP (DECL_RTL (FN), 0), 'P'); \ |
| 0 | 211 fprintf (FILE, "\n"); \ |
| 212 } \ | |
| 213 while (0) | |
| 214 | |
| 111 | 215 #undef TARGET_ASM_NAMED_SECTION |
| 216 #define TARGET_ASM_NAMED_SECTION i386_solaris_elf_named_section | |
| 217 | |
| 218 /* Sun as requires "h" flag for large sections, GNU as can do without, but | |
| 219 accepts "l". */ | |
| 220 #ifdef USE_GAS | |
| 221 #define MACH_DEP_SECTION_ASM_FLAG 'l' | |
| 222 #else | |
| 223 #define MACH_DEP_SECTION_ASM_FLAG 'h' | |
| 224 #endif | |
| 225 | |
| 226 #ifndef USE_GAS | |
| 227 /* Emit COMDAT group signature symbols for Sun as. */ | |
| 228 #undef TARGET_ASM_FILE_END | |
| 229 #define TARGET_ASM_FILE_END solaris_file_end | |
| 230 #endif | |
| 231 | |
| 232 /* Unlike GNU ld, Sun ld doesn't coalesce .ctors.N/.dtors.N sections, so | |
| 233 inhibit their creation. Also cf. sparc/sysv4.h. */ | |
| 234 #ifndef USE_GLD | |
| 235 #define CTORS_SECTION_ASM_OP "\t.section\t.ctors, \"aw\"" | |
| 236 #define DTORS_SECTION_ASM_OP "\t.section\t.dtors, \"aw\"" | |
| 237 #endif | |
| 238 | |
| 239 #ifndef USE_GAS | |
| 240 #define LARGECOMM_SECTION_ASM_OP "\t.lbcomm\t" | |
| 241 #endif | |
| 242 | |
| 145 | 243 /* -fsanitize=address is currently only supported for 32-bit. */ |
| 244 #define ASAN_REJECT_SPEC \ | |
| 245 DEF_ARCH64_SPEC("%e-fsanitize=address is not supported in this configuration") | |
| 111 | 246 |
| 247 #undef NO_PROFILE_COUNTERS | |
| 248 | |
| 249 #undef MCOUNT_NAME | |
| 250 #define MCOUNT_NAME "_mcount" | |
| 251 | |
| 0 | 252 /* We do not need NT_VERSION notes. */ |
| 253 #undef X86_FILE_START_VERSION_DIRECTIVE | |
| 254 #define X86_FILE_START_VERSION_DIRECTIVE false |