/* Define builtin-in macros for the C family front ends.
- Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
+ Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
+#include "version.h"
#include "flags.h"
#include "real.h"
#include "c-common.h"
#include "except.h" /* For USING_SJLJ_EXCEPTIONS. */
#include "toplev.h"
#include "tm_p.h" /* Target prototypes. */
+#include "target.h"
#ifndef TARGET_OS_CPP_BUILTINS
# define TARGET_OS_CPP_BUILTINS()
#endif
/* Non-static as some targets don't use it. */
-void builtin_define_std PARAMS ((const char *)) ATTRIBUTE_UNUSED;
-static void builtin_define_with_value_n PARAMS ((const char *, const char *,
- size_t));
-static void builtin_define_with_int_value PARAMS ((const char *,
- HOST_WIDE_INT));
-static void builtin_define_with_hex_fp_value PARAMS ((const char *, tree,
- int, const char *,
- const char *));
-static void builtin_define_type_max PARAMS ((const char *, tree, int));
-static void builtin_define_type_precision PARAMS ((const char *, tree));
-static void builtin_define_float_constants PARAMS ((const char *,
- const char *, tree));
-static void define__GNUC__ PARAMS ((void));
+void builtin_define_std (const char *) ATTRIBUTE_UNUSED;
+static void builtin_define_with_value_n (const char *, const char *,
+ size_t);
+static void builtin_define_with_int_value (const char *, HOST_WIDE_INT);
+static void builtin_define_with_hex_fp_value (const char *, tree,
+ int, const char *,
+ const char *,
+ const char *);
+static void builtin_define_stdint_macros (void);
+static void builtin_define_type_max (const char *, tree, int);
+static void builtin_define_type_precision (const char *, tree);
+static void builtin_define_type_sizeof (const char *, tree);
+static void builtin_define_float_constants (const char *,
+ const char *,
+ const char *,
+ tree);
+static void define__GNUC__ (void);
/* Define NAME with value TYPE precision. */
static void
-builtin_define_type_precision (name, type)
- const char *name;
- tree type;
+builtin_define_type_precision (const char *name, tree type)
{
builtin_define_with_int_value (name, TYPE_PRECISION (type));
}
-/* Define the float.h constants for TYPE using NAME_PREFIX and FP_SUFFIX. */
+/* Define NAME with value TYPE size_unit. */
static void
-builtin_define_float_constants (name_prefix, fp_suffix, type)
- const char *name_prefix;
- const char *fp_suffix;
- tree type;
+builtin_define_type_sizeof (const char *name, tree type)
+{
+ builtin_define_with_int_value (name,
+ tree_low_cst (TYPE_SIZE_UNIT (type), 1));
+}
+
+/* Define the float.h constants for TYPE using NAME_PREFIX, FP_SUFFIX,
+ and FP_CAST. */
+static void
+builtin_define_float_constants (const char *name_prefix,
+ const char *fp_suffix,
+ const char *fp_cast,
+ tree type)
{
/* Used to convert radix-based values to base 10 values in several cases.
int dig, min_10_exp, max_10_exp;
int decimal_dig;
- fmt = real_format_for_mode[TYPE_MODE (type) - QFmode];
+ fmt = REAL_MODE_FORMAT (TYPE_MODE (type));
+ gcc_assert (fmt->b != 10);
/* The radix of the exponent representation. */
if (type == float_type_node)
builtin_define_with_int_value ("__FLT_RADIX__", fmt->b);
- log10_b = log10_2 * fmt->log2_b;
+ log10_b = log10_2;
/* The number of radix digits, p, in the floating-point significand. */
sprintf (name, "__%s_MANT_DIG__", name_prefix);
p radix b digits and back again without change to the q decimal digits,
p log10 b if b is a power of 10
- floor((p - 1) log10 b) otherwise
+ floor((p - 1) log10 b) otherwise
*/
dig = (fmt->p - 1) * log10_b;
sprintf (name, "__%s_DIG__", name_prefix);
/* The number of decimal digits, n, such that any floating-point number
can be rounded to n decimal digits and back again without change to
- the value.
+ the value.
p * log10(b) if b is a power of 10
ceil(1 + p * log10(b)) otherwise
/* Since, for the supported formats, B is always a power of 2, we
construct the following numbers directly as a hexadecimal
constants. */
-
- /* The maximum representable finite floating-point number,
- (1 - b**-p) * b**emax */
- {
- int i, n;
- char *p;
-
- strcpy (buf, "0x0.");
- n = fmt->p * fmt->log2_b;
- for (i = 0, p = buf + 4; i + 3 < n; i += 4)
- *p++ = 'f';
- if (i < n)
- *p++ = "08ce"[n - i];
- sprintf (p, "p%d", fmt->emax * fmt->log2_b);
- }
+ get_max_float (fmt, buf, sizeof (buf));
+
sprintf (name, "__%s_MAX__", name_prefix);
- builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
/* The minimum normalized positive floating-point number,
b**(emin-1). */
sprintf (name, "__%s_MIN__", name_prefix);
- sprintf (buf, "0x1p%d", (fmt->emin - 1) * fmt->log2_b);
- builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix);
+ sprintf (buf, "0x1p%d", fmt->emin - 1);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
/* The difference between 1 and the least value greater than 1 that is
representable in the given floating point type, b**(1-p). */
sprintf (name, "__%s_EPSILON__", name_prefix);
- sprintf (buf, "0x1p%d", (1 - fmt->p) * fmt->log2_b);
- builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix);
+ if (fmt->pnan < fmt->p)
+ /* This is an IBM extended double format, so 1.0 + any double is
+ representable precisely. */
+ sprintf (buf, "0x1p%d", fmt->emin - fmt->p);
+ else
+ sprintf (buf, "0x1p%d", 1 - fmt->p);
+ builtin_define_with_hex_fp_value (name, type, decimal_dig, buf, fp_suffix, fp_cast);
/* For C++ std::numeric_limits<T>::denorm_min. The minimum denormalized
positive floating-point number, b**(emin-p). Zero for formats that
sprintf (name, "__%s_DENORM_MIN__", name_prefix);
if (fmt->has_denorm)
{
- sprintf (buf, "0x1p%d", (fmt->emin - fmt->p) * fmt->log2_b);
+ sprintf (buf, "0x1p%d", fmt->emin - fmt->p);
builtin_define_with_hex_fp_value (name, type, decimal_dig,
- buf, fp_suffix);
+ buf, fp_suffix, fp_cast);
}
else
{
builtin_define_with_value (name, buf, 0);
}
+ sprintf (name, "__%s_HAS_DENORM__", name_prefix);
+ builtin_define_with_value (name, fmt->has_denorm ? "1" : "0", 0);
+
/* For C++ std::numeric_limits<T>::has_infinity. */
sprintf (name, "__%s_HAS_INFINITY__", name_prefix);
- builtin_define_with_int_value (name,
+ builtin_define_with_int_value (name,
MODE_HAS_INFINITIES (TYPE_MODE (type)));
/* For C++ std::numeric_limits<T>::has_quiet_NaN. We do not have a
predicate to distinguish a target that has both quiet and
builtin_define_with_int_value (name, MODE_HAS_NANS (TYPE_MODE (type)));
}
+/* Define __DECx__ constants for TYPE using NAME_PREFIX and SUFFIX. */
+static void
+builtin_define_decimal_float_constants (const char *name_prefix,
+ const char *suffix,
+ tree type)
+{
+ const struct real_format *fmt;
+ char name[64], buf[128], *p;
+ int digits;
+
+ fmt = REAL_MODE_FORMAT (TYPE_MODE (type));
+
+ /* The number of radix digits, p, in the significand. */
+ sprintf (name, "__%s_MANT_DIG__", name_prefix);
+ builtin_define_with_int_value (name, fmt->p);
+
+ /* The minimum negative int x such that b**(x-1) is a normalized float. */
+ sprintf (name, "__%s_MIN_EXP__", name_prefix);
+ sprintf (buf, "(%d)", fmt->emin);
+ builtin_define_with_value (name, buf, 0);
+
+ /* The maximum int x such that b**(x-1) is a representable float. */
+ sprintf (name, "__%s_MAX_EXP__", name_prefix);
+ builtin_define_with_int_value (name, fmt->emax);
+
+ /* Compute the minimum representable value. */
+ sprintf (name, "__%s_MIN__", name_prefix);
+ sprintf (buf, "1E%d%s", fmt->emin, suffix);
+ builtin_define_with_value (name, buf, 0);
+
+ /* Compute the maximum representable value. */
+ sprintf (name, "__%s_MAX__", name_prefix);
+ p = buf;
+ for (digits = fmt->p; digits; digits--)
+ {
+ *p++ = '9';
+ if (digits == fmt->p)
+ *p++ = '.';
+ }
+ *p = 0;
+ /* fmt->p plus 1, to account for the decimal point. */
+ sprintf (&buf[fmt->p + 1], "E%d%s", fmt->emax, suffix);
+ builtin_define_with_value (name, buf, 0);
+
+ /* Compute epsilon (the difference between 1 and least value greater
+ than 1 representable). */
+ sprintf (name, "__%s_EPSILON__", name_prefix);
+ sprintf (buf, "1E-%d%s", fmt->p - 1, suffix);
+ builtin_define_with_value (name, buf, 0);
+
+ /* Minimum denormalized postive decimal value. */
+ sprintf (name, "__%s_DEN__", name_prefix);
+ p = buf;
+ for (digits = fmt->p; digits > 1; digits--)
+ {
+ *p++ = '0';
+ if (digits == fmt->p)
+ *p++ = '.';
+ }
+ *p = 0;
+ sprintf (&buf[fmt->p], "1E%d%s", fmt->emin, suffix);
+ builtin_define_with_value (name, buf, 0);
+}
+
+/* Define fixed-point constants for TYPE using NAME_PREFIX and SUFFIX. */
+
+static void
+builtin_define_fixed_point_constants (const char *name_prefix,
+ const char *suffix,
+ tree type)
+{
+ char name[64], buf[256], *new_buf;
+ int i, mod;
+
+ sprintf (name, "__%s_FBIT__", name_prefix);
+ builtin_define_with_int_value (name, TYPE_FBIT (type));
+
+ sprintf (name, "__%s_IBIT__", name_prefix);
+ builtin_define_with_int_value (name, TYPE_IBIT (type));
+
+ /* If there is no suffix, defines are for fixed-point modes.
+ We just return. */
+ if (strcmp (suffix, "") == 0)
+ return;
+
+ if (TYPE_UNSIGNED (type))
+ {
+ sprintf (name, "__%s_MIN__", name_prefix);
+ sprintf (buf, "0.0%s", suffix);
+ builtin_define_with_value (name, buf, 0);
+ }
+ else
+ {
+ sprintf (name, "__%s_MIN__", name_prefix);
+ if (ALL_ACCUM_MODE_P (TYPE_MODE (type)))
+ sprintf (buf, "(-0X1P%d%s-0X1P%d%s)", TYPE_IBIT (type) - 1, suffix,
+ TYPE_IBIT (type) - 1, suffix);
+ else
+ sprintf (buf, "(-0.5%s-0.5%s)", suffix, suffix);
+ builtin_define_with_value (name, buf, 0);
+ }
+
+ sprintf (name, "__%s_MAX__", name_prefix);
+ sprintf (buf, "0X");
+ new_buf = buf + 2;
+ mod = (TYPE_FBIT (type) + TYPE_IBIT (type)) % 4;
+ if (mod)
+ sprintf (new_buf++, "%x", (1 << mod) - 1);
+ for (i = 0; i < (TYPE_FBIT (type) + TYPE_IBIT (type)) / 4; i++)
+ sprintf (new_buf++, "F");
+ sprintf (new_buf, "P-%d%s", TYPE_FBIT (type), suffix);
+ builtin_define_with_value (name, buf, 0);
+
+ sprintf (name, "__%s_EPSILON__", name_prefix);
+ sprintf (buf, "0x1P-%d%s", TYPE_FBIT (type), suffix);
+ builtin_define_with_value (name, buf, 0);
+}
+
/* Define __GNUC__, __GNUC_MINOR__ and __GNUC_PATCHLEVEL__. */
static void
-define__GNUC__ ()
+define__GNUC__ (void)
{
/* The format of the version string, enforced below, is
([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
const char *q, *v = version_string;
- while (*v && ! ISDIGIT (*v))
+ while (*v && !ISDIGIT (*v))
v++;
- if (!*v || (v > version_string && v[-1] != '-'))
- abort ();
+ gcc_assert (*v && (v <= version_string || v[-1] == '-'));
q = v;
while (ISDIGIT (*v))
v++;
builtin_define_with_value_n ("__GNUC__", q, v - q);
- if (c_language == clk_cplusplus)
+ if (c_dialect_cxx ())
builtin_define_with_value_n ("__GNUG__", q, v - q);
- if (*v != '.' || !ISDIGIT (v[1]))
- abort ();
+ gcc_assert (*v == '.' && ISDIGIT (v[1]));
+
q = ++v;
while (ISDIGIT (*v))
v++;
if (*v == '.')
{
- if (!ISDIGIT (v[1]))
- abort ();
+ gcc_assert (ISDIGIT (v[1]));
q = ++v;
while (ISDIGIT (*v))
v++;
else
builtin_define_with_value_n ("__GNUC_PATCHLEVEL__", "0", 1);
- if (*v && *v != ' ' && *v != '-')
- abort ();
+ gcc_assert (!*v || *v == ' ' || *v == '-');
+}
+
+/* Define macros used by <stdint.h>. Currently only defines limits
+ for intmax_t, used by the testsuite. */
+static void
+builtin_define_stdint_macros (void)
+{
+ int intmax_long;
+ if (intmax_type_node == long_long_integer_type_node)
+ intmax_long = 2;
+ else if (intmax_type_node == long_integer_type_node)
+ intmax_long = 1;
+ else if (intmax_type_node == integer_type_node)
+ intmax_long = 0;
+ else
+ gcc_unreachable ();
+ builtin_define_type_max ("__INTMAX_MAX__", intmax_type_node, intmax_long);
}
/* Hook that registers front end and target-specific built-ins. */
void
-c_cpp_builtins (pfile)
- cpp_reader *pfile;
+c_cpp_builtins (cpp_reader *pfile)
{
/* -undef turns off target-specific built-ins. */
if (flag_undef)
/* For stddef.h. They require macros defined in c-common.c. */
c_stddef_cpp_builtins ();
- if (c_language == clk_cplusplus)
+ if (c_dialect_cxx ())
{
- if (SUPPORTS_ONE_ONLY)
+ if (flag_weak && SUPPORTS_ONE_ONLY)
cpp_define (pfile, "__GXX_WEAK__=1");
else
cpp_define (pfile, "__GXX_WEAK__=0");
- if (flag_exceptions)
- cpp_define (pfile, "__EXCEPTIONS");
if (warn_deprecated)
cpp_define (pfile, "__DEPRECATED");
+ if (flag_rtti)
+ cpp_define (pfile, "__GXX_RTTI");
+ if (cxx_dialect == cxx0x)
+ cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__");
}
+ /* 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
+ /* Represents the C++ ABI version, always defined so it can be used while
preprocessing C and assembler. */
- cpp_define (pfile, "__GXX_ABI_VERSION=102");
+ 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 (USING_SJLJ_EXCEPTIONS)
builtin_define_type_precision ("__CHAR_BIT__", char_type_node);
+ /* stdint.h (eventually) and the testsuite need to know these. */
+ builtin_define_stdint_macros ();
+
/* float.h needs to know these. */
builtin_define_with_int_value ("__FLT_EVAL_METHOD__",
TARGET_FLT_EVAL_METHOD);
- builtin_define_float_constants ("FLT", "F", float_type_node);
- builtin_define_float_constants ("DBL", "", double_type_node);
- builtin_define_float_constants ("LDBL", "L", long_double_type_node);
+ /* And decfloat.h needs this. */
+ builtin_define_with_int_value ("__DEC_EVAL_METHOD__",
+ TARGET_DEC_EVAL_METHOD);
+
+ builtin_define_float_constants ("FLT", "F", "%s", float_type_node);
+ /* Cast the double precision constants when single precision constants are
+ specified. The correct result is computed by the compiler when using
+ macros that include a cast. This has the side-effect of making the value
+ unusable in const expressions. */
+ if (flag_single_precision_constant)
+ builtin_define_float_constants ("DBL", "L", "((double)%s)", double_type_node);
+ else
+ builtin_define_float_constants ("DBL", "", "%s", double_type_node);
+ builtin_define_float_constants ("LDBL", "L", "%s", 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 use in assembly language. */
builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
/* Misc. */
builtin_define_with_value ("__VERSION__", version_string, 1);
+ if (flag_gnu89_inline)
+ cpp_define (pfile, "__GNUC_GNU_INLINE__");
+ else
+ cpp_define (pfile, "__GNUC_STDC_INLINE__");
+
/* Definitions for LP64 model. */
if (TYPE_PRECISION (long_integer_type_node) == 64
&& POINTER_SIZE == 64
cpp_define (pfile, "_LP64");
cpp_define (pfile, "__LP64__");
}
-
+
/* Other target-independent built-ins determined by command-line
options. */
if (optimize_size)
cpp_define (pfile, "__FINITE_MATH_ONLY__=1");
else
cpp_define (pfile, "__FINITE_MATH_ONLY__=0");
+ if (flag_pic)
+ {
+ builtin_define_with_int_value ("__pic__", flag_pic);
+ builtin_define_with_int_value ("__PIC__", flag_pic);
+ }
+ if (flag_pie)
+ {
+ builtin_define_with_int_value ("__pie__", flag_pie);
+ builtin_define_with_int_value ("__PIE__", flag_pie);
+ }
if (flag_iso)
cpp_define (pfile, "__STRICT_ANSI__");
if (!flag_signed_char)
cpp_define (pfile, "__CHAR_UNSIGNED__");
- if (c_language == clk_cplusplus && TREE_UNSIGNED (wchar_type_node))
+ 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
+
/* Make the choice of ObjC runtime visible to source code. */
- if (flag_objc && flag_next_runtime)
+ if (c_dialect_objc () && flag_next_runtime)
cpp_define (pfile, "__NEXT_RUNTIME__");
+ /* Show the availability of some target pragmas. */
+ if (flag_mudflap || targetm.handle_pragma_redefine_extname)
+ cpp_define (pfile, "__PRAGMA_REDEFINE_EXTNAME");
+
+ if (targetm.handle_pragma_extern_prefix)
+ cpp_define (pfile, "__PRAGMA_EXTERN_PREFIX");
+
+ /* 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 == 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=200505");
+
+ if (lang_fortran)
+ cpp_define (pfile, "__GFORTRAN__=1");
+
+ builtin_define_type_sizeof ("__SIZEOF_INT__", integer_type_node);
+ builtin_define_type_sizeof ("__SIZEOF_LONG__", long_integer_type_node);
+ builtin_define_type_sizeof ("__SIZEOF_LONG_LONG__",
+ long_long_integer_type_node);
+ builtin_define_type_sizeof ("__SIZEOF_SHORT__", short_integer_type_node);
+ builtin_define_type_sizeof ("__SIZEOF_FLOAT__", float_type_node);
+ builtin_define_type_sizeof ("__SIZEOF_DOUBLE__", double_type_node);
+ builtin_define_type_sizeof ("__SIZEOF_LONG_DOUBLE__", long_double_type_node);
+ builtin_define_type_sizeof ("__SIZEOF_SIZE_T__", size_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);
+ /* ptr_type_node can't be used here since ptr_mode is only set when
+ toplev calls backend_init which is not done with -E switch. */
+ builtin_define_with_int_value ("__SIZEOF_POINTER__",
+ POINTER_SIZE / BITS_PER_UNIT);
+
/* 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)
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__");
}
/* Pass an object-like macro. If it doesn't lie in the user's
"unix". Passing "_mips" defines "__mips", "__mips__" and possibly
"_mips". */
void
-builtin_define_std (macro)
- const char *macro;
+builtin_define_std (const char *macro)
{
size_t len = strlen (macro);
- char *buff = alloca (len + 5);
+ char *buff = (char *) alloca (len + 5);
char *p = buff + 2;
char *q = p + len;
parameter says whether or not to turn the value into a string
constant. */
void
-builtin_define_with_value (macro, expansion, is_str)
- const char *macro;
- const char *expansion;
- int is_str;
+builtin_define_with_value (const char *macro, const char *expansion, int is_str)
{
char *buf;
size_t mlen = strlen (macro);
if (is_str)
extra += 2; /* space for two quote marks */
- buf = alloca (mlen + elen + extra);
+ buf = (char *) alloca (mlen + elen + extra);
if (is_str)
sprintf (buf, "%s=\"%s\"", macro, expansion);
else
/* Pass an object-like macro and a value to define it to. The third
parameter is the length of the expansion. */
static void
-builtin_define_with_value_n (macro, expansion, elen)
- const char *macro;
- const char *expansion;
- size_t elen;
+builtin_define_with_value_n (const char *macro, const char *expansion, size_t elen)
{
char *buf;
size_t mlen = strlen (macro);
-
+
/* Space for an = and a NUL. */
- buf = alloca (mlen + elen + 2);
+ buf = (char *) alloca (mlen + elen + 2);
memcpy (buf, macro, mlen);
buf[mlen] = '=';
memcpy (buf + mlen + 1, expansion, elen);
/* Pass an object-like macro and an integer value to define it to. */
static void
-builtin_define_with_int_value (macro, value)
- const char *macro;
- HOST_WIDE_INT value;
+builtin_define_with_int_value (const char *macro, HOST_WIDE_INT value)
{
char *buf;
size_t mlen = strlen (macro);
size_t vlen = 18;
size_t extra = 2; /* space for = and NUL. */
- buf = alloca (mlen + vlen + extra);
+ buf = (char *) alloca (mlen + vlen + extra);
memcpy (buf, macro, mlen);
buf[mlen] = '=';
sprintf (buf + mlen + 1, HOST_WIDE_INT_PRINT_DEC, value);
/* Pass an object-like macro a hexadecimal floating-point value. */
static void
-builtin_define_with_hex_fp_value (macro, type, digits, hex_str, fp_suffix)
- const char *macro;
- tree type ATTRIBUTE_UNUSED;
- int digits;
- const char *hex_str;
- const char *fp_suffix;
+builtin_define_with_hex_fp_value (const char *macro,
+ tree type ATTRIBUTE_UNUSED, int digits,
+ const char *hex_str,
+ const char *fp_suffix,
+ const char *fp_cast)
{
REAL_VALUE_TYPE real;
- char dec_str[64], buf[256];
+ char dec_str[64], buf1[256], buf2[256];
/* Hex values are really cool and convenient, except that they're
not supported in strict ISO C90 mode. First, the "p-" sequence
pedwarn from the preprocessor, which has no context, so we can't
suppress the warning with __extension__.
- So instead what we do is construct the number in hex (because
+ So instead what we do is construct the number in hex (because
it's easy to get the exact correct value), parse it as a real,
then print it back out as decimal. */
real_from_string (&real, hex_str);
real_to_decimal (dec_str, &real, sizeof (dec_str), digits, 0);
- sprintf (buf, "%s=%s%s", macro, dec_str, fp_suffix);
- cpp_define (parse_in, buf);
+ /* Assemble the macro in the following fashion
+ macro = fp_cast [dec_str fp_suffix] */
+ sprintf (buf1, "%s%s", dec_str, fp_suffix);
+ sprintf (buf2, fp_cast, buf1);
+ sprintf (buf1, "%s=%s", macro, buf2);
+
+ cpp_define (parse_in, buf1);
}
/* Define MAX for TYPE based on the precision of the type. IS_LONG is
unsigned types, since wchar_t might be unsigned. */
static void
-builtin_define_type_max (macro, type, is_long)
- const char *macro;
- tree type;
- int is_long;
+builtin_define_type_max (const char *macro, tree type, int is_long)
{
static const char *const values[]
= { "127", "255",
case 32: idx = 4; break;
case 64: idx = 6; break;
case 128: idx = 8; break;
- default: abort ();
+ default: gcc_unreachable ();
}
- value = values[idx + TREE_UNSIGNED (type)];
- suffix = suffixes[is_long * 2 + TREE_UNSIGNED (type)];
+ value = values[idx + TYPE_UNSIGNED (type)];
+ suffix = suffixes[is_long * 2 + TYPE_UNSIGNED (type)];
- buf = alloca (strlen (macro) + 1 + strlen (value) + strlen (suffix) + 1);
+ buf = (char *) alloca (strlen (macro) + 1 + strlen (value)
+ + strlen (suffix) + 1);
sprintf (buf, "%s=%s%s", macro, value, suffix);
cpp_define (parse_in, buf);
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