Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/i386/cygming.h @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 /* Operating system specific defines to be used when targeting GCC for |
| 2 hosting on Windows32, using a Unix style C library and tools. | |
| 3 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, | |
|
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4 2004, 2005, 2007, 2008, 2009, 2010 |
| 0 | 5 Free Software Foundation, Inc. |
| 6 | |
| 7 This file is part of GCC. | |
| 8 | |
| 9 GCC is free software; you can redistribute it and/or modify | |
| 10 it under the terms of the GNU General Public License as published by | |
| 11 the Free Software Foundation; either version 3, or (at your option) | |
| 12 any later version. | |
| 13 | |
| 14 GCC is distributed in the hope that it will be useful, | |
| 15 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 GNU General Public License for more details. | |
| 18 | |
| 19 You should have received a copy of the GNU General Public License | |
| 20 along with GCC; see the file COPYING3. If not see | |
| 21 <http://www.gnu.org/licenses/>. */ | |
| 22 | |
| 23 #define DBX_DEBUGGING_INFO 1 | |
| 24 #define SDB_DEBUGGING_INFO 1 | |
| 25 #if TARGET_64BIT_DEFAULT || defined (HAVE_GAS_PE_SECREL32_RELOC) | |
| 26 #define DWARF2_DEBUGGING_INFO 1 | |
| 27 #endif | |
| 28 | |
| 29 #undef PREFERRED_DEBUGGING_TYPE | |
| 30 #if (DWARF2_DEBUGGING_INFO) | |
| 31 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
| 32 #else | |
| 33 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG | |
| 34 #endif | |
| 35 | |
| 36 #undef TARGET_64BIT_MS_ABI | |
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37 #define TARGET_64BIT_MS_ABI (!cfun ? ix86_abi == MS_ABI : TARGET_64BIT && cfun->machine->call_abi == MS_ABI) |
| 0 | 38 |
| 39 #undef DEFAULT_ABI | |
| 40 #define DEFAULT_ABI (TARGET_64BIT ? MS_ABI : SYSV_ABI) | |
| 41 | |
|
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42 #if ! defined (USE_MINGW64_LEADING_UNDERSCORES) |
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43 #undef USER_LABEL_PREFIX |
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44 #define USER_LABEL_PREFIX (TARGET_64BIT ? "" : "_") |
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45 #endif |
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46 |
| 0 | 47 #undef DBX_REGISTER_NUMBER |
| 48 #define DBX_REGISTER_NUMBER(n) \ | |
| 49 (TARGET_64BIT ? dbx64_register_map[n] \ | |
| 50 : (write_symbols == DWARF2_DEBUG \ | |
| 51 ? svr4_dbx_register_map[n] : dbx_register_map[n])) | |
| 52 | |
| 53 /* Map gcc register number to DWARF 2 CFA column number. For 32 bit | |
| 54 target, always use the svr4_dbx_register_map for DWARF .eh_frame | |
| 55 even if we don't use DWARF .debug_frame. */ | |
| 56 #undef DWARF_FRAME_REGNUM | |
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57 #define DWARF_FRAME_REGNUM(n) \ |
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58 (TARGET_64BIT ? dbx64_register_map[(n)] \ |
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59 : svr4_dbx_register_map[(n)]) |
| 0 | 60 |
| 61 #ifdef HAVE_GAS_PE_SECREL32_RELOC | |
| 62 /* Use section relative relocations for debugging offsets. Unlike | |
| 63 other targets that fake this by putting the section VMA at 0, PE | |
| 64 won't allow it. */ | |
| 65 #define ASM_OUTPUT_DWARF_OFFSET(FILE, SIZE, LABEL, SECTION) \ | |
| 66 do { \ | |
| 67 if (SIZE != 4 && (!TARGET_64BIT || SIZE != 8)) \ | |
| 68 abort (); \ | |
| 69 \ | |
| 70 fputs ("\t.secrel32\t", FILE); \ | |
| 71 assemble_name (FILE, LABEL); \ | |
| 72 } while (0) | |
| 73 #endif | |
| 74 | |
| 75 #define TARGET_EXECUTABLE_SUFFIX ".exe" | |
| 76 | |
| 77 #include <stdio.h> | |
| 78 | |
| 79 #define TARGET_OS_CPP_BUILTINS() \ | |
| 80 do \ | |
| 81 { \ | |
|
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82 if (!TARGET_64BIT) \ |
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83 builtin_define ("_X86_=1"); \ |
| 0 | 84 builtin_assert ("system=winnt"); \ |
| 85 builtin_define ("__stdcall=__attribute__((__stdcall__))"); \ | |
| 86 builtin_define ("__fastcall=__attribute__((__fastcall__))"); \ | |
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87 builtin_define ("__thiscall=__attribute__((__thiscall__))"); \ |
| 0 | 88 builtin_define ("__cdecl=__attribute__((__cdecl__))"); \ |
| 89 if (!flag_iso) \ | |
| 90 { \ | |
| 91 builtin_define ("_stdcall=__attribute__((__stdcall__))"); \ | |
| 92 builtin_define ("_fastcall=__attribute__((__fastcall__))"); \ | |
|
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93 builtin_define ("_thiscall=__attribute__((__thiscall__))"); \ |
| 0 | 94 builtin_define ("_cdecl=__attribute__((__cdecl__))"); \ |
| 95 } \ | |
| 96 /* Even though linkonce works with static libs, this is needed \ | |
| 97 to compare typeinfo symbols across dll boundaries. */ \ | |
| 98 builtin_define ("__GXX_MERGED_TYPEINFO_NAMES=0"); \ | |
| 99 builtin_define ("__GXX_TYPEINFO_EQUALITY_INLINE=0"); \ | |
| 100 EXTRA_OS_CPP_BUILTINS (); \ | |
| 101 } \ | |
| 102 while (0) | |
| 103 | |
| 104 /* Get tree.c to declare a target-specific specialization of | |
| 105 merge_decl_attributes. */ | |
| 106 #define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1 | |
| 107 | |
| 108 /* This macro defines names of additional specifications to put in the specs | |
| 109 that can be used in various specifications like CC1_SPEC. Its definition | |
| 110 is an initializer with a subgrouping for each command option. | |
| 111 | |
| 112 Each subgrouping contains a string constant, that defines the | |
| 113 specification name, and a string constant that used by the GCC driver | |
| 114 program. | |
| 115 | |
| 116 Do not define this macro if it does not need to do anything. */ | |
| 117 | |
| 118 #undef SUBTARGET_EXTRA_SPECS | |
| 119 #define SUBTARGET_EXTRA_SPECS \ | |
| 120 { "mingw_include_path", DEFAULT_TARGET_MACHINE } | |
| 121 | |
| 122 #undef MATH_LIBRARY | |
| 123 #define MATH_LIBRARY "" | |
| 124 | |
| 125 #define SIZE_TYPE (TARGET_64BIT ? "long long unsigned int" : "unsigned int") | |
| 126 #define PTRDIFF_TYPE (TARGET_64BIT ? "long long int" : "int") | |
| 127 | |
| 128 #define WCHAR_TYPE_SIZE 16 | |
| 129 #define WCHAR_TYPE "short unsigned int" | |
| 130 | |
| 131 /* Windows64 continues to use a 32-bit long type. */ | |
| 132 #undef LONG_TYPE_SIZE | |
| 133 #define LONG_TYPE_SIZE 32 | |
| 134 | |
| 135 /* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */ | |
| 136 #define HANDLE_PRAGMA_PACK_PUSH_POP 1 | |
| 137 | |
| 138 union tree_node; | |
| 139 #define TREE union tree_node * | |
| 140 | |
| 141 #define drectve_section() \ | |
| 142 (fprintf (asm_out_file, "\t.section .drectve\n"), \ | |
| 143 in_section = NULL) | |
| 144 | |
| 145 /* Older versions of gas don't handle 'r' as data. | |
| 146 Explicitly set data flag with 'd'. */ | |
| 147 #define READONLY_DATA_SECTION_ASM_OP "\t.section .rdata,\"dr\"" | |
| 148 | |
| 149 /* Don't allow flag_pic to propagate since gas may produce invalid code | |
| 150 otherwise. */ | |
| 151 | |
| 152 #undef SUBTARGET_OVERRIDE_OPTIONS | |
| 153 #define SUBTARGET_OVERRIDE_OPTIONS \ | |
| 154 do { \ | |
| 155 if (flag_pic) \ | |
| 156 { \ | |
| 157 warning (0, "-f%s ignored for target (all code is position independent)",\ | |
| 158 (flag_pic > 1) ? "PIC" : "pic"); \ | |
| 159 flag_pic = 0; \ | |
| 160 } \ | |
| 161 } while (0) \ | |
| 162 | |
| 163 /* Define this macro if references to a symbol must be treated | |
| 164 differently depending on something about the variable or | |
| 165 function named by the symbol (such as what section it is in). | |
| 166 | |
| 167 On i386 running Windows NT, modify the assembler name with a suffix | |
| 168 consisting of an atsign (@) followed by string of digits that represents | |
| 169 the number of bytes of arguments passed to the function, if it has the | |
| 170 attribute STDCALL. | |
| 171 | |
| 172 In addition, we must mark dll symbols specially. Definitions of | |
| 173 dllexport'd objects install some info in the .drectve section. | |
| 174 References to dllimport'd objects are fetched indirectly via | |
| 175 _imp__. If both are declared, dllexport overrides. This is also | |
| 176 needed to implement one-only vtables: they go into their own | |
| 177 section and we need to set DECL_SECTION_NAME so we do that here. | |
| 178 Note that we can be called twice on the same decl. */ | |
| 179 | |
| 180 #define SUBTARGET_ENCODE_SECTION_INFO i386_pe_encode_section_info | |
| 181 | |
| 182 /* Output a common block. */ | |
| 183 #undef ASM_OUTPUT_ALIGNED_DECL_COMMON | |
| 184 #define ASM_OUTPUT_ALIGNED_DECL_COMMON \ | |
| 185 i386_pe_asm_output_aligned_decl_common | |
| 186 | |
| 187 /* Output the label for an initialized variable. */ | |
| 188 #undef ASM_DECLARE_OBJECT_NAME | |
| 189 #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL) \ | |
| 190 do { \ | |
| 191 i386_pe_maybe_record_exported_symbol (DECL, NAME, 1); \ | |
| 192 ASM_OUTPUT_LABEL ((STREAM), (NAME)); \ | |
| 193 } while (0) | |
| 194 | |
| 195 /* Output a reference to a label. Fastcall function symbols | |
| 196 keep their '@' prefix, while other symbols are prefixed | |
| 197 with user_label_prefix. */ | |
| 198 #undef ASM_OUTPUT_LABELREF | |
| 199 #define ASM_OUTPUT_LABELREF(STREAM, NAME) \ | |
| 200 do { \ | |
| 201 if ((NAME)[0] != FASTCALL_PREFIX) \ | |
| 202 fputs (user_label_prefix, (STREAM)); \ | |
| 203 fputs ((NAME), (STREAM)); \ | |
| 204 } while (0) | |
| 205 | |
| 206 | |
| 207 /* Emit code to check the stack when allocating more than 4000 | |
| 208 bytes in one go. */ | |
| 209 #define CHECK_STACK_LIMIT 4000 | |
| 210 | |
| 211 #undef STACK_BOUNDARY | |
|
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212 #define STACK_BOUNDARY (ix86_abi == MS_ABI ? 128 : BITS_PER_WORD) |
| 0 | 213 |
| 214 /* By default, target has a 80387, uses IEEE compatible arithmetic, | |
| 215 returns float values in the 387 and needs stack probes. | |
| 216 We also align doubles to 64-bits for MSVC default compatibility. */ | |
| 217 | |
| 218 #undef TARGET_SUBTARGET_DEFAULT | |
| 219 #define TARGET_SUBTARGET_DEFAULT \ | |
| 220 (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS \ | |
| 221 | MASK_STACK_PROBE | MASK_ALIGN_DOUBLE) | |
| 222 | |
| 223 #undef TARGET_SUBTARGET64_DEFAULT | |
| 224 #define TARGET_SUBTARGET64_DEFAULT \ | |
| 225 MASK_128BIT_LONG_DOUBLE | |
| 226 | |
| 227 /* This is how to output an assembler line | |
| 228 that says to advance the location counter | |
| 229 to a multiple of 2**LOG bytes. */ | |
| 230 | |
| 231 #undef ASM_OUTPUT_ALIGN | |
| 232 #define ASM_OUTPUT_ALIGN(FILE,LOG) \ | |
| 233 if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG)) | |
| 234 | |
| 235 /* Windows uses explicit import from shared libraries. */ | |
| 236 #define MULTIPLE_SYMBOL_SPACES 1 | |
| 237 | |
| 238 #define TARGET_ASM_UNIQUE_SECTION i386_pe_unique_section | |
| 239 #define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section | |
| 240 | |
| 241 #define SUPPORTS_ONE_ONLY 1 | |
| 242 | |
| 243 /* Switch into a generic section. */ | |
| 244 #define TARGET_ASM_NAMED_SECTION i386_pe_asm_named_section | |
| 245 | |
| 246 /* Select attributes for named sections. */ | |
| 247 #define TARGET_SECTION_TYPE_FLAGS i386_pe_section_type_flags | |
| 248 | |
| 249 /* Write the extra assembler code needed to declare a function | |
| 250 properly. If we are generating SDB debugging information, this | |
| 251 will happen automatically, so we only need to handle other cases. */ | |
| 252 #undef ASM_DECLARE_FUNCTION_NAME | |
| 253 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ | |
| 254 do \ | |
| 255 { \ | |
| 256 i386_pe_maybe_record_exported_symbol (DECL, NAME, 0); \ | |
| 257 if (write_symbols != SDB_DEBUG) \ | |
| 258 i386_pe_declare_function_type (FILE, NAME, TREE_PUBLIC (DECL)); \ | |
| 259 ASM_OUTPUT_LABEL (FILE, NAME); \ | |
| 260 } \ | |
| 261 while (0) | |
| 262 | |
| 263 /* Add an external function to the list of functions to be declared at | |
| 264 the end of the file. */ | |
| 265 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \ | |
| 266 do \ | |
| 267 { \ | |
| 268 if (TREE_CODE (DECL) == FUNCTION_DECL) \ | |
| 269 i386_pe_record_external_function ((DECL), (NAME)); \ | |
| 270 } \ | |
| 271 while (0) | |
| 272 | |
| 273 /* Declare the type properly for any external libcall. */ | |
| 274 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ | |
| 275 i386_pe_declare_function_type (FILE, XSTR (FUN, 0), 1) | |
| 276 | |
| 277 /* This says out to put a global symbol in the BSS section. */ | |
| 278 #undef ASM_OUTPUT_ALIGNED_BSS | |
| 279 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 280 asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN)) | |
| 281 | |
| 282 /* Output function declarations at the end of the file. */ | |
| 283 #undef TARGET_ASM_FILE_END | |
| 284 #define TARGET_ASM_FILE_END i386_pe_file_end | |
| 285 | |
| 286 #undef ASM_COMMENT_START | |
| 287 #define ASM_COMMENT_START " #" | |
| 288 | |
| 289 #ifndef DWARF2_UNWIND_INFO | |
| 290 /* If configured with --disable-sjlj-exceptions, use DWARF2, else | |
| 291 default to SJLJ. */ | |
| 292 #if (defined (CONFIG_SJLJ_EXCEPTIONS) && !CONFIG_SJLJ_EXCEPTIONS) | |
| 293 /* The logic of this #if must be kept synchronised with the logic | |
| 294 for selecting the tmake_eh_file fragment in config.gcc. */ | |
| 295 #define DWARF2_UNWIND_INFO 1 | |
|
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296 /* If multilib is selected break build as sjlj is required. */ |
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297 #if defined (TARGET_BI_ARCH) |
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298 #error For 64-bit windows and 32-bit based multilib version of gcc just SJLJ exceptions are supported. |
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299 #endif |
| 0 | 300 #else |
| 301 #define DWARF2_UNWIND_INFO 0 | |
| 302 #endif | |
| 303 #endif | |
| 304 | |
| 305 /* Don't assume anything about the header files. */ | |
| 306 #define NO_IMPLICIT_EXTERN_C | |
| 307 | |
| 308 #undef PROFILE_HOOK | |
| 309 #define PROFILE_HOOK(LABEL) \ | |
| 310 if (MAIN_NAME_P (DECL_NAME (current_function_decl))) \ | |
| 311 { \ | |
| 312 emit_call_insn (gen_rtx_CALL (VOIDmode, \ | |
| 313 gen_rtx_MEM (FUNCTION_MODE, \ | |
| 314 gen_rtx_SYMBOL_REF (Pmode, "_monstartup")), \ | |
| 315 const0_rtx)); \ | |
| 316 } | |
| 317 | |
| 318 /* Java Native Interface (JNI) methods on Win32 are invoked using the | |
| 319 stdcall calling convention. */ | |
| 320 #undef MODIFY_JNI_METHOD_CALL | |
| 321 #define MODIFY_JNI_METHOD_CALL(MDECL) \ | |
| 322 build_type_attribute_variant ((MDECL), \ | |
| 323 build_tree_list (get_identifier ("stdcall"), \ | |
| 324 NULL)) | |
| 325 | |
| 326 /* For Win32 ABI compatibility */ | |
| 327 #undef DEFAULT_PCC_STRUCT_RETURN | |
| 328 #define DEFAULT_PCC_STRUCT_RETURN 0 | |
| 329 | |
| 330 /* MSVC returns aggregate types of up to 8 bytes via registers. | |
| 331 See i386.c:ix86_return_in_memory. */ | |
| 332 #undef MS_AGGREGATE_RETURN | |
| 333 #define MS_AGGREGATE_RETURN 1 | |
| 334 | |
| 335 /* Biggest alignment supported by the object file format of this | |
| 336 machine. Use this macro to limit the alignment which can be | |
| 337 specified using the `__attribute__ ((aligned (N)))' construct. If | |
| 338 not defined, the default value is `BIGGEST_ALIGNMENT'. */ | |
| 339 /* IMAGE_SCN_ALIGN_8192BYTES is the largest section alignment flag | |
| 340 specified in the PECOFF60 spec. Native MS compiler also limits | |
| 341 user-specified alignment to 8192 bytes. */ | |
| 342 #undef MAX_OFILE_ALIGNMENT | |
| 343 #define MAX_OFILE_ALIGNMENT (8192 * 8) | |
| 344 | |
| 345 /* BIGGEST_FIELD_ALIGNMENT macro is used directly by libobjc, There, we | |
| 346 align internal doubles in structures on dword boundaries. Otherwise, | |
| 347 support vector modes using ADJUST_FIELD_ALIGN, defined in i386.h. */ | |
| 348 #ifdef IN_TARGET_LIBS | |
| 349 #undef BIGGEST_FIELD_ALIGNMENT | |
| 350 #define BIGGEST_FIELD_ALIGNMENT 64 | |
| 351 #endif | |
| 352 | |
| 353 /* A bit-field declared as `int' forces `int' alignment for the struct. */ | |
| 354 #undef PCC_BITFIELD_TYPE_MATTERS | |
| 355 #define PCC_BITFIELD_TYPE_MATTERS 1 | |
| 356 #define GROUP_BITFIELDS_BY_ALIGN TYPE_NATIVE(rec) | |
| 357 | |
| 358 /* Enable alias attribute support. */ | |
| 359 #ifndef SET_ASM_OP | |
| 360 #define SET_ASM_OP "\t.set\t" | |
| 361 #endif | |
| 362 | |
| 363 /* This implements the `alias' attribute, keeping any stdcall or | |
| 364 fastcall decoration. */ | |
| 365 #undef ASM_OUTPUT_DEF_FROM_DECLS | |
| 366 #define ASM_OUTPUT_DEF_FROM_DECLS(STREAM, DECL, TARGET) \ | |
| 367 do \ | |
| 368 { \ | |
| 369 const char *alias \ | |
| 370 = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \ | |
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371 i386_pe_maybe_record_exported_symbol (DECL, alias, 0); \ |
| 0 | 372 if (TREE_CODE (DECL) == FUNCTION_DECL) \ |
| 373 i386_pe_declare_function_type (STREAM, alias, \ | |
| 374 TREE_PUBLIC (DECL)); \ | |
| 375 ASM_OUTPUT_DEF (STREAM, alias, IDENTIFIER_POINTER (TARGET)); \ | |
| 376 } while (0) | |
| 377 | |
| 378 /* GNU as supports weak symbols on PECOFF. */ | |
| 379 #ifdef HAVE_GAS_WEAK | |
| 380 #define ASM_WEAKEN_LABEL(FILE, NAME) \ | |
| 381 do \ | |
| 382 { \ | |
| 383 fputs ("\t.weak\t", (FILE)); \ | |
| 384 assemble_name ((FILE), (NAME)); \ | |
| 385 fputc ('\n', (FILE)); \ | |
| 386 } \ | |
| 387 while (0) | |
| 388 #endif /* HAVE_GAS_WEAK */ | |
| 389 | |
| 390 /* FIXME: SUPPORTS_WEAK && TARGET_HAVE_NAMED_SECTIONS is true, | |
| 391 but for .jcr section to work we also need crtbegin and crtend | |
| 392 objects. */ | |
|
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393 #define TARGET_USE_JCR_SECTION 1 |
| 0 | 394 |
| 395 /* Decide whether it is safe to use a local alias for a virtual function | |
| 396 when constructing thunks. */ | |
| 397 #undef TARGET_USE_LOCAL_THUNK_ALIAS_P | |
| 398 #define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) (!DECL_ONE_ONLY (DECL)) | |
| 399 | |
| 400 #define SUBTARGET_ATTRIBUTE_TABLE \ | |
| 401 { "selectany", 0, 0, true, false, false, ix86_handle_selectany_attribute } | |
| 402 /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ | |
| 403 | |
| 404 /* mcount() does not need a counter variable. */ | |
| 405 #undef NO_PROFILE_COUNTERS | |
| 406 #define NO_PROFILE_COUNTERS 1 | |
| 407 | |
| 408 #define TARGET_VALID_DLLIMPORT_ATTRIBUTE_P i386_pe_valid_dllimport_attribute_p | |
| 409 #define TARGET_CXX_ADJUST_CLASS_AT_DEFINITION i386_pe_adjust_class_at_definition | |
| 410 #define TARGET_MANGLE_DECL_ASSEMBLER_NAME i386_pe_mangle_decl_assembler_name | |
| 411 | |
| 412 #undef TREE | |
| 413 | |
| 414 #ifndef BUFSIZ | |
| 415 # undef FILE | |
| 416 #endif |