/* Define __GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__ and __VERSION__.  */
static void
define__GNUC__ (cpp_reader *pfile)
{
  int major, minor, patchlevel;

  parse_basever (&major, &minor, &patchlevel);
  cpp_define_formatted (pfile, "__GNUC__=%d", major);
  cpp_define_formatted (pfile, "__GNUC_MINOR__=%d", minor);
  cpp_define_formatted (pfile, "__GNUC_PATCHLEVEL__=%d", patchlevel);
  cpp_define_formatted (pfile, "__VERSION__=\"%s\"", version_string);
}
示例#2
0
文件: cppbuiltin.c 项目: AHelper/gcc
/* Define __GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__ and __VERSION__.  */
static void
define__GNUC__ (cpp_reader *pfile)
{
  int major, minor, patchlevel;

  parse_basever (&major, &minor, &patchlevel);
  cpp_define_formatted (pfile, "__GNUC__=%d", major);
  cpp_define_formatted (pfile, "__GNUC_MINOR__=%d", minor);
  cpp_define_formatted (pfile, "__GNUC_PATCHLEVEL__=%d", patchlevel);
  cpp_define_formatted (pfile, "__VERSION__=\"%s\"", version_string);
  cpp_define_formatted (pfile, "__ATOMIC_RELAXED=%d", MEMMODEL_RELAXED);
  cpp_define_formatted (pfile, "__ATOMIC_SEQ_CST=%d", MEMMODEL_SEQ_CST);
  cpp_define_formatted (pfile, "__ATOMIC_ACQUIRE=%d", MEMMODEL_ACQUIRE);
  cpp_define_formatted (pfile, "__ATOMIC_RELEASE=%d", MEMMODEL_RELEASE);
  cpp_define_formatted (pfile, "__ATOMIC_ACQ_REL=%d", MEMMODEL_ACQ_REL);
  cpp_define_formatted (pfile, "__ATOMIC_CONSUME=%d", MEMMODEL_CONSUME);
}
示例#3
0
文件: c-cppbuiltin.c 项目: ds2dev/gcc
/* Hook that registers front end and target-specific built-ins.  */
void
c_cpp_builtins (cpp_reader *pfile)
{
  /* -undef turns off target-specific built-ins.  */
  if (flag_undef)
    return;

  define_language_independent_builtin_macros (pfile);

  if (c_dialect_cxx ())
  {
    int major;
    parse_basever (&major, NULL, NULL);
    cpp_define_formatted (pfile, "__GNUG__=%d", major);
  }

  /* For stddef.h.  They require macros defined in c-common.c.  */
  c_stddef_cpp_builtins ();

  /* Set include test macros for all C/C++ (not for just C++11 etc.)
     the builtins __has_include__ and __has_include_next__ are defined
     in libcpp.  */
  cpp_define (pfile, "__has_include(STR)=__has_include__(STR)");
  cpp_define (pfile, "__has_include_next(STR)=__has_include_next__(STR)");

  if (c_dialect_cxx ())
    {
      if (flag_weak && SUPPORTS_ONE_ONLY)
	cpp_define (pfile, "__GXX_WEAK__=1");
      else
	cpp_define (pfile, "__GXX_WEAK__=0");

      if (warn_deprecated)
	cpp_define (pfile, "__DEPRECATED");

      if (flag_rtti)
	cpp_define (pfile, "__GXX_RTTI");

      if (cxx_dialect >= cxx11)
        cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__");

      /* Binary literals have been allowed in g++ before C++11
	 and were standardized for C++14.  */
      if (!pedantic || cxx_dialect > cxx11)
	cpp_define (pfile, "__cpp_binary_literals=201304");
      if (cxx_dialect >= cxx11)
	{
	  /* Set feature test macros for C++11  */
	  cpp_define (pfile, "__cpp_unicode_characters=200704");
	  cpp_define (pfile, "__cpp_raw_strings=200710");
	  cpp_define (pfile, "__cpp_unicode_literals=200710");
	  cpp_define (pfile, "__cpp_user_defined_literals=200809");
	  cpp_define (pfile, "__cpp_lambdas=200907");
	  cpp_define (pfile, "__cpp_constexpr=200704");
	  cpp_define (pfile, "__cpp_static_assert=200410");
	  cpp_define (pfile, "__cpp_decltype=200707");
	  cpp_define (pfile, "__cpp_attributes=200809");
	  cpp_define (pfile, "__cpp_rvalue_reference=200610");
	  cpp_define (pfile, "__cpp_variadic_templates=200704");
	  cpp_define (pfile, "__cpp_alias_templates=200704");
	}
      if (cxx_dialect > cxx11)
	{
	  /* Set feature test macros for C++14  */
	  cpp_define (pfile, "__cpp_return_type_deduction=201304");
	  cpp_define (pfile, "__cpp_init_captures=201304");
	  cpp_define (pfile, "__cpp_generic_lambdas=201304");
	  //cpp_undef (pfile, "__cpp_constexpr");
	  //cpp_define (pfile, "__cpp_constexpr=201304");
	  cpp_define (pfile, "__cpp_decltype_auto=201304");
	  //cpp_define (pfile, "__cpp_aggregate_nsdmi=201304");
	  //cpp_define (pfile, "__cpp_variable_templates=201304");
	  cpp_define (pfile, "__cpp_digit_separators=201309");
	  cpp_define (pfile, "__cpp_attribute_deprecated=201309");
	  //cpp_define (pfile, "__cpp_sized_deallocation=201309");
	  /* We'll have to see where runtime arrays wind up.
	     Let's put it in C++14 for now.  */
	  cpp_define (pfile, "__cpp_runtime_arrays=201304");
	}
    }
  /* Note that we define this for C as well, so that we know if
     __attribute__((cleanup)) will interface with EH.  */
  if (flag_exceptions)
    cpp_define (pfile, "__EXCEPTIONS");

  /* Represents the C++ ABI version, always defined so it can be used while
     preprocessing C and assembler.  */
  if (flag_abi_version == 0)
    /* Use a very large value so that:

	 #if __GXX_ABI_VERSION >= <value for version X>

       will work whether the user explicitly says "-fabi-version=x" or
       "-fabi-version=0".  Do not use INT_MAX because that will be
       different from system to system.  */
    builtin_define_with_int_value ("__GXX_ABI_VERSION", 999999);
  else if (flag_abi_version == 1)
    /* Due to a historical accident, this version had the value
       "102".  */
    builtin_define_with_int_value ("__GXX_ABI_VERSION", 102);
  else
    /* Newer versions have values 1002, 1003, ....  */
    builtin_define_with_int_value ("__GXX_ABI_VERSION",
				   1000 + flag_abi_version);

  /* libgcc needs to know this.  */
  if (targetm_common.except_unwind_info (&global_options) == UI_SJLJ)
    cpp_define (pfile, "__USING_SJLJ_EXCEPTIONS__");

  /* limits.h and stdint.h need to know these.  */
  builtin_define_type_max ("__SCHAR_MAX__", signed_char_type_node);
  builtin_define_type_max ("__SHRT_MAX__", short_integer_type_node);
  builtin_define_type_max ("__INT_MAX__", integer_type_node);
  builtin_define_type_max ("__LONG_MAX__", long_integer_type_node);
  builtin_define_type_max ("__LONG_LONG_MAX__", long_long_integer_type_node);
  builtin_define_type_minmax ("__WCHAR_MIN__", "__WCHAR_MAX__",
			      underlying_wchar_type_node);
  builtin_define_type_minmax ("__WINT_MIN__", "__WINT_MAX__", wint_type_node);
  builtin_define_type_max ("__PTRDIFF_MAX__", ptrdiff_type_node);
  builtin_define_type_max ("__SIZE_MAX__", size_type_node);

  /* stdint.h and the testsuite need to know these.  */
  builtin_define_stdint_macros ();

  /* Provide information for library headers to determine whether to
     define macros such as __STDC_IEC_559__ and
     __STDC_IEC_559_COMPLEX__.  */
  builtin_define_with_int_value ("__GCC_IEC_559", cpp_iec_559_value ());
  builtin_define_with_int_value ("__GCC_IEC_559_COMPLEX",
				 cpp_iec_559_complex_value ());

  /* float.h needs to know this.  */
  builtin_define_with_int_value ("__FLT_EVAL_METHOD__",
				 TARGET_FLT_EVAL_METHOD);

  /* And decfloat.h needs this.  */
  builtin_define_with_int_value ("__DEC_EVAL_METHOD__",
                                 TARGET_DEC_EVAL_METHOD);

  builtin_define_float_constants ("FLT", "F", "%s", "F", float_type_node);
  /* Cast the double precision constants.  This is needed when single
     precision constants are specified or when pragma FLOAT_CONST_DECIMAL64
     is used.  The correct result is computed by the compiler when using
     macros that include a cast.  We use a different cast for C++ to avoid
     problems with -Wold-style-cast.  */
  builtin_define_float_constants ("DBL", "L",
				  (c_dialect_cxx ()
				   ? "double(%s)"
				   : "((double)%s)"),
				  "", double_type_node);
  builtin_define_float_constants ("LDBL", "L", "%s", "L",
				  long_double_type_node);

  /* For decfloat.h.  */
  builtin_define_decimal_float_constants ("DEC32", "DF", dfloat32_type_node);
  builtin_define_decimal_float_constants ("DEC64", "DD", dfloat64_type_node);
  builtin_define_decimal_float_constants ("DEC128", "DL", dfloat128_type_node);

  /* For fixed-point fibt, ibit, max, min, and epsilon.  */
  if (targetm.fixed_point_supported_p ())
    {
      builtin_define_fixed_point_constants ("SFRACT", "HR",
					    short_fract_type_node);
      builtin_define_fixed_point_constants ("USFRACT", "UHR",
					    unsigned_short_fract_type_node);
      builtin_define_fixed_point_constants ("FRACT", "R",
					    fract_type_node);
      builtin_define_fixed_point_constants ("UFRACT", "UR",
					    unsigned_fract_type_node);
      builtin_define_fixed_point_constants ("LFRACT", "LR",
					    long_fract_type_node);
      builtin_define_fixed_point_constants ("ULFRACT", "ULR",
					    unsigned_long_fract_type_node);
      builtin_define_fixed_point_constants ("LLFRACT", "LLR",
					    long_long_fract_type_node);
      builtin_define_fixed_point_constants ("ULLFRACT", "ULLR",
					    unsigned_long_long_fract_type_node);
      builtin_define_fixed_point_constants ("SACCUM", "HK",
					    short_accum_type_node);
      builtin_define_fixed_point_constants ("USACCUM", "UHK",
					    unsigned_short_accum_type_node);
      builtin_define_fixed_point_constants ("ACCUM", "K",
					    accum_type_node);
      builtin_define_fixed_point_constants ("UACCUM", "UK",
					    unsigned_accum_type_node);
      builtin_define_fixed_point_constants ("LACCUM", "LK",
					    long_accum_type_node);
      builtin_define_fixed_point_constants ("ULACCUM", "ULK",
					    unsigned_long_accum_type_node);
      builtin_define_fixed_point_constants ("LLACCUM", "LLK",
					    long_long_accum_type_node);
      builtin_define_fixed_point_constants ("ULLACCUM", "ULLK",
					    unsigned_long_long_accum_type_node);

      builtin_define_fixed_point_constants ("QQ", "", qq_type_node);
      builtin_define_fixed_point_constants ("HQ", "", hq_type_node);
      builtin_define_fixed_point_constants ("SQ", "", sq_type_node);
      builtin_define_fixed_point_constants ("DQ", "", dq_type_node);
      builtin_define_fixed_point_constants ("TQ", "", tq_type_node);
      builtin_define_fixed_point_constants ("UQQ", "", uqq_type_node);
      builtin_define_fixed_point_constants ("UHQ", "", uhq_type_node);
      builtin_define_fixed_point_constants ("USQ", "", usq_type_node);
      builtin_define_fixed_point_constants ("UDQ", "", udq_type_node);
      builtin_define_fixed_point_constants ("UTQ", "", utq_type_node);
      builtin_define_fixed_point_constants ("HA", "", ha_type_node);
      builtin_define_fixed_point_constants ("SA", "", sa_type_node);
      builtin_define_fixed_point_constants ("DA", "", da_type_node);
      builtin_define_fixed_point_constants ("TA", "", ta_type_node);
      builtin_define_fixed_point_constants ("UHA", "", uha_type_node);
      builtin_define_fixed_point_constants ("USA", "", usa_type_node);
      builtin_define_fixed_point_constants ("UDA", "", uda_type_node);
      builtin_define_fixed_point_constants ("UTA", "", uta_type_node);
    }

  /* For libgcc-internal use only.  */
  if (flag_building_libgcc)
    /* For libgcc enable-execute-stack.c.  */
    builtin_define_with_int_value ("__LIBGCC_TRAMPOLINE_SIZE__",
				   TRAMPOLINE_SIZE);

  /* For use in assembly language.  */
  builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
  builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);

  /* Misc.  */
  if (flag_gnu89_inline)
    cpp_define (pfile, "__GNUC_GNU_INLINE__");
  else
    cpp_define (pfile, "__GNUC_STDC_INLINE__");

  if (flag_no_inline)
    cpp_define (pfile, "__NO_INLINE__");

  if (flag_iso)
    cpp_define (pfile, "__STRICT_ANSI__");

  if (!flag_signed_char)
    cpp_define (pfile, "__CHAR_UNSIGNED__");

  if (c_dialect_cxx () && TYPE_UNSIGNED (wchar_type_node))
    cpp_define (pfile, "__WCHAR_UNSIGNED__");

  /* Tell source code if the compiler makes sync_compare_and_swap
     builtins available.  */
#ifdef HAVE_sync_compare_and_swapqi
  if (HAVE_sync_compare_and_swapqi)
    cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
#endif

#ifdef HAVE_sync_compare_and_swaphi
  if (HAVE_sync_compare_and_swaphi)
    cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
#endif

#ifdef HAVE_sync_compare_and_swapsi
  if (HAVE_sync_compare_and_swapsi)
    cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
#endif

#ifdef HAVE_sync_compare_and_swapdi
  if (HAVE_sync_compare_and_swapdi)
    cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
#endif

#ifdef HAVE_sync_compare_and_swapti
  if (HAVE_sync_compare_and_swapti)
    cpp_define (pfile, "__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16");
#endif

  cpp_atomic_builtins (pfile);
    
#ifdef DWARF2_UNWIND_INFO
  if (dwarf2out_do_cfi_asm ())
    cpp_define (pfile, "__GCC_HAVE_DWARF2_CFI_ASM");
#endif

  /* Make the choice of ObjC runtime visible to source code.  */
  if (c_dialect_objc () && flag_next_runtime)
    cpp_define (pfile, "__NEXT_RUNTIME__");

  /* Show the availability of some target pragmas.  */
  cpp_define (pfile, "__PRAGMA_REDEFINE_EXTNAME");

  /* Make the choice of the stack protector runtime visible to source code.
     The macro names and values here were chosen for compatibility with an
     earlier implementation, i.e. ProPolice.  */
  if (flag_stack_protect == 3)
    cpp_define (pfile, "__SSP_STRONG__=3");
  if (flag_stack_protect == 2)
    cpp_define (pfile, "__SSP_ALL__=2");
  else if (flag_stack_protect == 1)
    cpp_define (pfile, "__SSP__=1");

  if (flag_openmp)
    cpp_define (pfile, "_OPENMP=201307");

  if (int128_integer_type_node != NULL_TREE)
    builtin_define_type_sizeof ("__SIZEOF_INT128__",
			        int128_integer_type_node);
  builtin_define_type_sizeof ("__SIZEOF_WCHAR_T__", wchar_type_node);
  builtin_define_type_sizeof ("__SIZEOF_WINT_T__", wint_type_node);
  builtin_define_type_sizeof ("__SIZEOF_PTRDIFF_T__",
			      unsigned_ptrdiff_type_node);

  /* A straightforward target hook doesn't work, because of problems
     linking that hook's body when part of non-C front ends.  */
# define preprocessing_asm_p() (cpp_get_options (pfile)->lang == CLK_ASM)
# define preprocessing_trad_p() (cpp_get_options (pfile)->traditional)
# define builtin_define(TXT) cpp_define (pfile, TXT)
# define builtin_assert(TXT) cpp_assert (pfile, TXT)
  TARGET_CPU_CPP_BUILTINS ();
  TARGET_OS_CPP_BUILTINS ();
  TARGET_OBJFMT_CPP_BUILTINS ();

  /* Support the __declspec keyword by turning them into attributes.
     Note that the current way we do this may result in a collision
     with predefined attributes later on.  This can be solved by using
     one attribute, say __declspec__, and passing args to it.  The
     problem with that approach is that args are not accumulated: each
     new appearance would clobber any existing args.  */
  if (TARGET_DECLSPEC)
    builtin_define ("__declspec(x)=__attribute__((x))");

  /* If decimal floating point is supported, tell the user if the
     alternate format (BID) is used instead of the standard (DPD)
     format.  */
  if (ENABLE_DECIMAL_FLOAT && ENABLE_DECIMAL_BID_FORMAT)
    cpp_define (pfile, "__DECIMAL_BID_FORMAT__");
  if (c_dialect_cxx () && flag_sized_delete)
    cpp_define (pfile, "__GXX_DELETE_WITH_SIZE__");
}