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-rw-r--r--gcc/cppbuiltin.c207
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diff --git a/gcc/cppbuiltin.c b/gcc/cppbuiltin.c
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--- a/gcc/cppbuiltin.c
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-/* Define builtin-in macros for all front ends that perform preprocessing
- Copyright (C) 2010-2022 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 3, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-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 "memmodel.h"
-#include "target.h"
-#include "tree.h"
-#include "version.h"
-#include "flags.h"
-#include "cpplib.h"
-#include "cppbuiltin.h"
-
-
-/* Parse a BASEVER version string of the format "major.minor.patchlevel"
- or "major.minor" to extract its components. */
-void
-parse_basever (int *major, int *minor, int *patchlevel)
-{
- static int s_major = -1, s_minor, s_patchlevel;
-
- if (s_major == -1)
- if (sscanf (BASEVER, "%d.%d.%d", &s_major, &s_minor, &s_patchlevel) != 3)
- {
- sscanf (BASEVER, "%d.%d", &s_major, &s_minor);
- s_patchlevel = 0;
- }
-
- if (major)
- *major = s_major;
-
- if (minor)
- *minor = s_minor;
-
- if (patchlevel)
- *patchlevel = s_patchlevel;
-}
-
-
-/* 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);
-}
-
-
-/* Define various built-in CPP macros that depend on language-independent
- compilation flags. */
-static void
-define_builtin_macros_for_compilation_flags (cpp_reader *pfile)
-{
- if (flag_pic)
- {
- cpp_define_formatted (pfile, "__pic__=%d", flag_pic);
- cpp_define_formatted (pfile, "__PIC__=%d", flag_pic);
- }
- if (flag_pie)
- {
- cpp_define_formatted (pfile, "__pie__=%d", flag_pie);
- cpp_define_formatted (pfile, "__PIE__=%d", flag_pie);
- }
-
- if (flag_sanitize & SANITIZE_ADDRESS)
- cpp_define (pfile, "__SANITIZE_ADDRESS__");
-
- if (flag_sanitize & SANITIZE_HWADDRESS)
- cpp_define (pfile, "__SANITIZE_HWADDRESS__");
-
- if (flag_sanitize & SANITIZE_THREAD)
- cpp_define (pfile, "__SANITIZE_THREAD__");
-
- if (optimize_size)
- cpp_define (pfile, "__OPTIMIZE_SIZE__");
- if (optimize)
- cpp_define (pfile, "__OPTIMIZE__");
-
- if (fast_math_flags_set_p (&global_options))
- cpp_define (pfile, "__FAST_MATH__");
- if (flag_signaling_nans)
- cpp_define (pfile, "__SUPPORT_SNAN__");
- if (!flag_errno_math)
- cpp_define (pfile, "__NO_MATH_ERRNO__");
- if (flag_reciprocal_math)
- cpp_define (pfile, "__RECIPROCAL_MATH__");
- if (!flag_signed_zeros)
- cpp_define (pfile, "__NO_SIGNED_ZEROS__");
- if (!flag_trapping_math)
- cpp_define (pfile, "__NO_TRAPPING_MATH__");
- if (flag_associative_math)
- cpp_define (pfile, "__ASSOCIATIVE_MATH__");
- if (flag_rounding_math)
- cpp_define (pfile, "__ROUNDING_MATH__");
-
- cpp_define_formatted (pfile, "__FINITE_MATH_ONLY__=%d",
- flag_finite_math_only);
-}
-
-
-/* Define built-in macros for LP64 targets. */
-static void
-define_builtin_macros_for_lp64 (cpp_reader *pfile)
-{
- if (TYPE_PRECISION (long_integer_type_node) == 64
- && POINTER_SIZE == 64
- && TYPE_PRECISION (integer_type_node) == 32)
- {
- cpp_define (pfile, "_LP64");
- cpp_define (pfile, "__LP64__");
- }
-}
-
-
-/* Define macros for size of basic C types. */
-static void
-define_builtin_macros_for_type_sizes (cpp_reader *pfile)
-{
-#define define_type_sizeof(NAME, TYPE) \
- cpp_define_formatted (pfile, NAME"=" HOST_WIDE_INT_PRINT_DEC, \
- tree_to_uhwi (TYPE_SIZE_UNIT (TYPE)))
-
- define_type_sizeof ("__SIZEOF_INT__", integer_type_node);
- define_type_sizeof ("__SIZEOF_LONG__", long_integer_type_node);
- define_type_sizeof ("__SIZEOF_LONG_LONG__", long_long_integer_type_node);
- define_type_sizeof ("__SIZEOF_SHORT__", short_integer_type_node);
- define_type_sizeof ("__SIZEOF_FLOAT__", float_type_node);
- define_type_sizeof ("__SIZEOF_DOUBLE__", double_type_node);
- define_type_sizeof ("__SIZEOF_LONG_DOUBLE__", long_double_type_node);
- define_type_sizeof ("__SIZEOF_SIZE_T__", size_type_node);
-
-#undef define_type_sizeof
-
- cpp_define_formatted (pfile, "__CHAR_BIT__=%u",
- TYPE_PRECISION (char_type_node));
- cpp_define_formatted (pfile, "__BIGGEST_ALIGNMENT__=%d",
- BIGGEST_ALIGNMENT / BITS_PER_UNIT);
-
- /* Define constants useful for implementing endian.h. */
- cpp_define (pfile, "__ORDER_LITTLE_ENDIAN__=1234");
- cpp_define (pfile, "__ORDER_BIG_ENDIAN__=4321");
- cpp_define (pfile, "__ORDER_PDP_ENDIAN__=3412");
-
- if (WORDS_BIG_ENDIAN == BYTES_BIG_ENDIAN)
- cpp_define_formatted (pfile, "__BYTE_ORDER__=%s",
- (WORDS_BIG_ENDIAN
- ? "__ORDER_BIG_ENDIAN__"
- : "__ORDER_LITTLE_ENDIAN__"));
- else
- {
- /* Assert that we're only dealing with the PDP11 case. */
- gcc_assert (!BYTES_BIG_ENDIAN);
- gcc_assert (WORDS_BIG_ENDIAN);
-
- cpp_define (pfile, "__BYTE_ORDER__=__ORDER_PDP_ENDIAN__");
- }
-
- cpp_define_formatted (pfile, "__FLOAT_WORD_ORDER__=%s",
- (targetm.float_words_big_endian ()
- ? "__ORDER_BIG_ENDIAN__"
- : "__ORDER_LITTLE_ENDIAN__"));
-
- /* 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. */
- cpp_define_formatted (pfile, "__SIZEOF_POINTER__=%d",
- 1 << ceil_log2 ((POINTER_SIZE + BITS_PER_UNIT - 1) / BITS_PER_UNIT));
-}
-
-
-/* Define macros builtins common to all language performing CPP
- preprocessing. */
-void
-define_language_independent_builtin_macros (cpp_reader *pfile)
-{
- define__GNUC__ (pfile);
- define_builtin_macros_for_compilation_flags (pfile);
- define_builtin_macros_for_lp64 (pfile);
- define_builtin_macros_for_type_sizes (pfile);
-}
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