diff options
| -rw-r--r-- | Makefile | 38 | ||||
| -rw-r--r-- | include/bits/xopen_lim.h | 149 | ||||
| -rw-r--r-- | include/features.h | 493 | ||||
| -rw-r--r-- | include/gnu-versions.h | 53 | ||||
| -rw-r--r-- | include/gnu/libc-version.h | 35 | ||||
| -rw-r--r-- | include/limits.h | 193 | ||||
| -rw-r--r-- | include/stdc-predef.h | 61 | ||||
| -rw-r--r-- | include/values.h | 69 | ||||
| -rw-r--r-- | misc/Makefile | 31 | ||||
| -rw-r--r-- | misc/bits/xopen_lim.h | 148 | ||||
| -rw-r--r-- | misc/features.h | 492 | ||||
| -rw-r--r-- | misc/gnu-versions.h | 52 | ||||
| -rw-r--r-- | misc/gnu/libc-version.h | 34 | ||||
| -rw-r--r-- | misc/limits.h | 192 | ||||
| -rw-r--r-- | misc/stdc-predef.h | 60 | ||||
| -rw-r--r-- | misc/values.h | 68 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/bits/errno.h | 1 |
17 files changed, 1072 insertions, 1097 deletions
@@ -68,17 +68,11 @@ endif # $(AUTOCONF) = no subdir_objs subdir_stubs subdir_testclean \ $(addprefix install-, no-libc.a bin lib data headers others) -headers := limits.h values.h features.h gnu-versions.h \ - bits/xopen_lim.h gnu/libc-version.h stdc-predef.h \ - bits/libc-header-start.h +headers := echo-headers: subdir_echo-headers -# The headers are in the include directory. -subdir-dirs = include -vpath %.h $(subdir-dirs) - -# What to install. +# This header is created during the install process. See below. install-others = $(inst_includedir)/gnu/stubs.h install-bin-script = @@ -522,34 +516,6 @@ $(objpfx)check-local-headers.out: scripts/check-local-headers.sh "$(includedir)" "$(objpfx)" < /dev/null > $@; \ $(evaluate-test) -ifneq "$(headers)" "" -# Special test of all the installed headers in this directory. -tests-special += $(objpfx)check-installed-headers-c.out -libof-check-installed-headers-c := testsuite -$(objpfx)check-installed-headers-c.out: \ - scripts/check-installed-headers.sh $(headers) - $(SHELL) $(..)scripts/check-installed-headers.sh c \ - "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \ - $(headers) > $@; \ - $(evaluate-test) - -ifneq "$(CXX)" "" -tests-special += $(objpfx)check-installed-headers-cxx.out -libof-check-installed-headers-cxx := testsuite -$(objpfx)check-installed-headers-cxx.out: \ - scripts/check-installed-headers.sh $(headers) - $(SHELL) $(..)scripts/check-installed-headers.sh c++ \ - "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \ - $(headers) > $@; \ - $(evaluate-test) -endif # $(CXX) - -tests-special += $(objpfx)check-wrapper-headers.out -$(objpfx)check-wrapper-headers.out: scripts/check-wrapper-headers.py $(headers) - $(PYTHON) $< --root=. --subdir=. $(headers) \ - --generated $(common-generated) > $@; $(evaluate-test) -endif # $(headers) - define summarize-tests @egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true @echo "Summary of test results$2:" diff --git a/include/bits/xopen_lim.h b/include/bits/xopen_lim.h index 957010d2c0..9c2c1ecf9b 100644 --- a/include/bits/xopen_lim.h +++ b/include/bits/xopen_lim.h @@ -1,148 +1 @@ -/* Copyright (C) 1996-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -/* - * Never include this file directly; use <limits.h> instead. - */ - -/* Additional definitions from X/Open Portability Guide, Issue 4, Version 2 - System Interfaces and Headers, 4.16 <limits.h> - - Please note only the values which are not greater than the minimum - stated in the standard document are listed. The `sysconf' functions - should be used to obtain the actual value. */ - -#ifndef _XOPEN_LIM_H -#define _XOPEN_LIM_H 1 - -/* We do not provide fixed values for - - ARG_MAX Maximum length of argument to the `exec' function - including environment data. - - ATEXIT_MAX Maximum number of functions that may be registered - with `atexit'. - - CHILD_MAX Maximum number of simultaneous processes per real - user ID. - - OPEN_MAX Maximum number of files that one process can have open - at anyone time. - - PAGESIZE - PAGE_SIZE Size of bytes of a page. - - PASS_MAX Maximum number of significant bytes in a password. - - We only provide a fixed limit for - - IOV_MAX Maximum number of `iovec' structures that one process has - available for use with `readv' or writev'. - - if this is indeed fixed by the underlying system. -*/ - - -/* Maximum number of `iovec' structures that may be used in a single call - to `readv', `writev', etc. */ -#define _XOPEN_IOV_MAX _POSIX_UIO_MAXIOV - -#include <bits/uio_lim.h> -#ifdef __IOV_MAX -# define IOV_MAX __IOV_MAX -#else -# undef IOV_MAX -#endif - -/* Maximum value of `digit' in calls to the `printf' and `scanf' - functions. We have no limit, so return a reasonable value. */ -#define NL_ARGMAX _POSIX_ARG_MAX - -/* Maximum number of bytes in a `LANG' name. We have no limit. */ -#define NL_LANGMAX _POSIX2_LINE_MAX - -/* Maximum message number. We have no limit. */ -#define NL_MSGMAX INT_MAX - -/* Maximum number of bytes in N-to-1 collation mapping. We have no - limit. */ -#if defined __USE_GNU || !defined __USE_XOPEN2K8 -# define NL_NMAX INT_MAX -#endif - -/* Maximum set number. We have no limit. */ -#define NL_SETMAX INT_MAX - -/* Maximum number of bytes in a message. We have no limit. */ -#define NL_TEXTMAX INT_MAX - -/* Default process priority. */ -#define NZERO 20 - - -/* Number of bits in a word of type `int'. */ -#ifdef INT_MAX -# if INT_MAX == 32767 -# define WORD_BIT 16 -# else -# if INT_MAX == 2147483647 -# define WORD_BIT 32 -# else -/* Safe assumption. */ -# define WORD_BIT 64 -# endif -# endif -#elif defined __INT_MAX__ -# if __INT_MAX__ == 32767 -# define WORD_BIT 16 -# else -# if __INT_MAX__ == 2147483647 -# define WORD_BIT 32 -# else -/* Safe assumption. */ -# define WORD_BIT 64 -# endif -# endif -#else -# define WORD_BIT 32 -#endif - -/* Number of bits in a word of type `long int'. */ -#ifdef LONG_MAX -# if LONG_MAX == 2147483647 -# define LONG_BIT 32 -# else -/* Safe assumption. */ -# define LONG_BIT 64 -# endif -#elif defined __LONG_MAX__ -# if __LONG_MAX__ == 2147483647 -# define LONG_BIT 32 -# else -/* Safe assumption. */ -# define LONG_BIT 64 -# endif -#else -# include <bits/wordsize.h> -# if __WORDSIZE == 64 -# define LONG_BIT 64 -# else -# define LONG_BIT 32 -# endif -#endif - -#endif /* bits/xopen_lim.h */ +#include <misc/bits/xopen_lim.h> diff --git a/include/features.h b/include/features.h index af371842bb..504a6848bc 100644 --- a/include/features.h +++ b/include/features.h @@ -1,492 +1 @@ -/* Copyright (C) 1991-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _FEATURES_H -#define _FEATURES_H 1 - -/* These are defined by the user (or the compiler) - to specify the desired environment: - - __STRICT_ANSI__ ISO Standard C. - _ISOC99_SOURCE Extensions to ISO C89 from ISO C99. - _ISOC11_SOURCE Extensions to ISO C99 from ISO C11. - _ISOC2X_SOURCE Extensions to ISO C99 from ISO C2X. - __STDC_WANT_LIB_EXT2__ - Extensions to ISO C99 from TR 27431-2:2010. - __STDC_WANT_IEC_60559_BFP_EXT__ - Extensions to ISO C11 from TS 18661-1:2014. - __STDC_WANT_IEC_60559_FUNCS_EXT__ - Extensions to ISO C11 from TS 18661-4:2015. - __STDC_WANT_IEC_60559_TYPES_EXT__ - Extensions to ISO C11 from TS 18661-3:2015. - - _POSIX_SOURCE IEEE Std 1003.1. - _POSIX_C_SOURCE If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2; - if >=199309L, add IEEE Std 1003.1b-1993; - if >=199506L, add IEEE Std 1003.1c-1995; - if >=200112L, all of IEEE 1003.1-2004 - if >=200809L, all of IEEE 1003.1-2008 - _XOPEN_SOURCE Includes POSIX and XPG things. Set to 500 if - Single Unix conformance is wanted, to 600 for the - sixth revision, to 700 for the seventh revision. - _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions. - _LARGEFILE_SOURCE Some more functions for correct standard I/O. - _LARGEFILE64_SOURCE Additional functionality from LFS for large files. - _FILE_OFFSET_BITS=N Select default filesystem interface. - _ATFILE_SOURCE Additional *at interfaces. - _GNU_SOURCE All of the above, plus GNU extensions. - _DEFAULT_SOURCE The default set of features (taking precedence over - __STRICT_ANSI__). - - _FORTIFY_SOURCE Add security hardening to many library functions. - Set to 1 or 2; 2 performs stricter checks than 1. - - _REENTRANT, _THREAD_SAFE - Obsolete; equivalent to _POSIX_C_SOURCE=199506L. - - The `-ansi' switch to the GNU C compiler, and standards conformance - options such as `-std=c99', define __STRICT_ANSI__. If none of - these are defined, or if _DEFAULT_SOURCE is defined, the default is - to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to - 200809L, as well as enabling miscellaneous functions from BSD and - SVID. If more than one of these are defined, they accumulate. For - example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together - give you ISO C, 1003.1, and 1003.2, but nothing else. - - These are defined by this file and are used by the - header files to decide what to declare or define: - - __GLIBC_USE (F) Define things from feature set F. This is defined - to 1 or 0; the subsequent macros are either defined - or undefined, and those tests should be moved to - __GLIBC_USE. - __USE_ISOC11 Define ISO C11 things. - __USE_ISOC99 Define ISO C99 things. - __USE_ISOC95 Define ISO C90 AMD1 (C95) things. - __USE_ISOCXX11 Define ISO C++11 things. - __USE_POSIX Define IEEE Std 1003.1 things. - __USE_POSIX2 Define IEEE Std 1003.2 things. - __USE_POSIX199309 Define IEEE Std 1003.1, and .1b things. - __USE_POSIX199506 Define IEEE Std 1003.1, .1b, .1c and .1i things. - __USE_XOPEN Define XPG things. - __USE_XOPEN_EXTENDED Define X/Open Unix things. - __USE_UNIX98 Define Single Unix V2 things. - __USE_XOPEN2K Define XPG6 things. - __USE_XOPEN2KXSI Define XPG6 XSI things. - __USE_XOPEN2K8 Define XPG7 things. - __USE_XOPEN2K8XSI Define XPG7 XSI things. - __USE_LARGEFILE Define correct standard I/O things. - __USE_LARGEFILE64 Define LFS things with separate names. - __USE_FILE_OFFSET64 Define 64bit interface as default. - __USE_MISC Define things from 4.3BSD or System V Unix. - __USE_ATFILE Define *at interfaces and AT_* constants for them. - __USE_GNU Define GNU extensions. - __USE_FORTIFY_LEVEL Additional security measures used, according to level. - - The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are - defined by this file unconditionally. `__GNU_LIBRARY__' is provided - only for compatibility. All new code should use the other symbols - to test for features. - - All macros listed above as possibly being defined by this file are - explicitly undefined if they are not explicitly defined. - Feature-test macros that are not defined by the user or compiler - but are implied by the other feature-test macros defined (or by the - lack of any definitions) are defined by the file. - - ISO C feature test macros depend on the definition of the macro - when an affected header is included, not when the first system - header is included, and so they are handled in - <bits/libc-header-start.h>, which does not have a multiple include - guard. Feature test macros that can be handled from the first - system header included are handled here. */ - - -/* Undefine everything, so we get a clean slate. */ -#undef __USE_ISOC11 -#undef __USE_ISOC99 -#undef __USE_ISOC95 -#undef __USE_ISOCXX11 -#undef __USE_POSIX -#undef __USE_POSIX2 -#undef __USE_POSIX199309 -#undef __USE_POSIX199506 -#undef __USE_XOPEN -#undef __USE_XOPEN_EXTENDED -#undef __USE_UNIX98 -#undef __USE_XOPEN2K -#undef __USE_XOPEN2KXSI -#undef __USE_XOPEN2K8 -#undef __USE_XOPEN2K8XSI -#undef __USE_LARGEFILE -#undef __USE_LARGEFILE64 -#undef __USE_FILE_OFFSET64 -#undef __USE_MISC -#undef __USE_ATFILE -#undef __USE_GNU -#undef __USE_FORTIFY_LEVEL -#undef __KERNEL_STRICT_NAMES -#undef __GLIBC_USE_ISOC2X -#undef __GLIBC_USE_DEPRECATED_GETS -#undef __GLIBC_USE_DEPRECATED_SCANF - -/* Suppress kernel-name space pollution unless user expressedly asks - for it. */ -#ifndef _LOOSE_KERNEL_NAMES -# define __KERNEL_STRICT_NAMES -#endif - -/* Convenience macro to test the version of gcc. - Use like this: - #if __GNUC_PREREQ (2,8) - ... code requiring gcc 2.8 or later ... - #endif - Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was - added in 2.0. */ -#if defined __GNUC__ && defined __GNUC_MINOR__ -# define __GNUC_PREREQ(maj, min) \ - ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) -#else -# define __GNUC_PREREQ(maj, min) 0 -#endif - -/* Similarly for clang. Features added to GCC after version 4.2 may - or may not also be available in clang, and clang's definitions of - __GNUC(_MINOR)__ are fixed at 4 and 2 respectively. Not all such - features can be queried via __has_extension/__has_feature. */ -#if defined __clang_major__ && defined __clang_minor__ -# define __glibc_clang_prereq(maj, min) \ - ((__clang_major__ << 16) + __clang_minor__ >= ((maj) << 16) + (min)) -#else -# define __glibc_clang_prereq(maj, min) 0 -#endif - -/* Whether to use feature set F. */ -#define __GLIBC_USE(F) __GLIBC_USE_ ## F - -/* _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for - _DEFAULT_SOURCE. If _DEFAULT_SOURCE is present we do not - issue a warning; the expectation is that the source is being - transitioned to use the new macro. */ -#if (defined _BSD_SOURCE || defined _SVID_SOURCE) \ - && !defined _DEFAULT_SOURCE -# warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" -# undef _DEFAULT_SOURCE -# define _DEFAULT_SOURCE 1 -#endif - -/* If _GNU_SOURCE was defined by the user, turn on all the other features. */ -#ifdef _GNU_SOURCE -# undef _ISOC95_SOURCE -# define _ISOC95_SOURCE 1 -# undef _ISOC99_SOURCE -# define _ISOC99_SOURCE 1 -# undef _ISOC11_SOURCE -# define _ISOC11_SOURCE 1 -# undef _ISOC2X_SOURCE -# define _ISOC2X_SOURCE 1 -# undef _POSIX_SOURCE -# define _POSIX_SOURCE 1 -# undef _POSIX_C_SOURCE -# define _POSIX_C_SOURCE 200809L -# undef _XOPEN_SOURCE -# define _XOPEN_SOURCE 700 -# undef _XOPEN_SOURCE_EXTENDED -# define _XOPEN_SOURCE_EXTENDED 1 -# undef _LARGEFILE64_SOURCE -# define _LARGEFILE64_SOURCE 1 -# undef _DEFAULT_SOURCE -# define _DEFAULT_SOURCE 1 -# undef _ATFILE_SOURCE -# define _ATFILE_SOURCE 1 -#endif - -/* If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined, - define _DEFAULT_SOURCE. */ -#if (defined _DEFAULT_SOURCE \ - || (!defined __STRICT_ANSI__ \ - && !defined _ISOC99_SOURCE && !defined _ISOC11_SOURCE \ - && !defined _ISOC2X_SOURCE \ - && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE \ - && !defined _XOPEN_SOURCE)) -# undef _DEFAULT_SOURCE -# define _DEFAULT_SOURCE 1 -#endif - -/* This is to enable the ISO C2X extension. */ -#if (defined _ISOC2X_SOURCE \ - || (defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L)) -# define __GLIBC_USE_ISOC2X 1 -#else -# define __GLIBC_USE_ISOC2X 0 -#endif - -/* This is to enable the ISO C11 extension. */ -#if (defined _ISOC11_SOURCE || defined _ISOC2X_SOURCE \ - || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 201112L)) -# define __USE_ISOC11 1 -#endif - -/* This is to enable the ISO C99 extension. */ -#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ - || defined _ISOC2X_SOURCE \ - || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)) -# define __USE_ISOC99 1 -#endif - -/* This is to enable the ISO C90 Amendment 1:1995 extension. */ -#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ - || defined _ISOC2X_SOURCE \ - || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199409L)) -# define __USE_ISOC95 1 -#endif - -#ifdef __cplusplus -/* This is to enable compatibility for ISO C++17. */ -# if __cplusplus >= 201703L -# define __USE_ISOC11 1 -# endif -/* This is to enable compatibility for ISO C++11. - Check the temporary macro for now, too. */ -# if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__ -# define __USE_ISOCXX11 1 -# define __USE_ISOC99 1 -# endif -#endif - -/* If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE - is defined, use POSIX.1-2008 (or another version depending on - _XOPEN_SOURCE). */ -#ifdef _DEFAULT_SOURCE -# if !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE -# define __USE_POSIX_IMPLICITLY 1 -# endif -# undef _POSIX_SOURCE -# define _POSIX_SOURCE 1 -# undef _POSIX_C_SOURCE -# define _POSIX_C_SOURCE 200809L -#endif - -#if ((!defined __STRICT_ANSI__ \ - || (defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 500)) \ - && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE) -# define _POSIX_SOURCE 1 -# if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 500 -# define _POSIX_C_SOURCE 2 -# elif defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 600 -# define _POSIX_C_SOURCE 199506L -# elif defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 700 -# define _POSIX_C_SOURCE 200112L -# else -# define _POSIX_C_SOURCE 200809L -# endif -# define __USE_POSIX_IMPLICITLY 1 -#endif - -/* Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be - defined in all multithreaded code. GNU libc has not required this - for many years. We now treat them as compatibility synonyms for - _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with - comprehensive support for multithreaded code. Using them never - lowers the selected level of POSIX conformance, only raises it. */ -#if ((!defined _POSIX_C_SOURCE || (_POSIX_C_SOURCE - 0) < 199506L) \ - && (defined _REENTRANT || defined _THREAD_SAFE)) -# define _POSIX_SOURCE 1 -# undef _POSIX_C_SOURCE -# define _POSIX_C_SOURCE 199506L -#endif - -#if (defined _POSIX_SOURCE \ - || (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 1) \ - || defined _XOPEN_SOURCE) -# define __USE_POSIX 1 -#endif - -#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 2 || defined _XOPEN_SOURCE -# define __USE_POSIX2 1 -#endif - -#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199309L -# define __USE_POSIX199309 1 -#endif - -#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199506L -# define __USE_POSIX199506 1 -#endif - -#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200112L -# define __USE_XOPEN2K 1 -# undef __USE_ISOC95 -# define __USE_ISOC95 1 -# undef __USE_ISOC99 -# define __USE_ISOC99 1 -#endif - -#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200809L -# define __USE_XOPEN2K8 1 -# undef _ATFILE_SOURCE -# define _ATFILE_SOURCE 1 -#endif - -#ifdef _XOPEN_SOURCE -# define __USE_XOPEN 1 -# if (_XOPEN_SOURCE - 0) >= 500 -# define __USE_XOPEN_EXTENDED 1 -# define __USE_UNIX98 1 -# undef _LARGEFILE_SOURCE -# define _LARGEFILE_SOURCE 1 -# if (_XOPEN_SOURCE - 0) >= 600 -# if (_XOPEN_SOURCE - 0) >= 700 -# define __USE_XOPEN2K8 1 -# define __USE_XOPEN2K8XSI 1 -# endif -# define __USE_XOPEN2K 1 -# define __USE_XOPEN2KXSI 1 -# undef __USE_ISOC95 -# define __USE_ISOC95 1 -# undef __USE_ISOC99 -# define __USE_ISOC99 1 -# endif -# else -# ifdef _XOPEN_SOURCE_EXTENDED -# define __USE_XOPEN_EXTENDED 1 -# endif -# endif -#endif - -#ifdef _LARGEFILE_SOURCE -# define __USE_LARGEFILE 1 -#endif - -#ifdef _LARGEFILE64_SOURCE -# define __USE_LARGEFILE64 1 -#endif - -#if defined _FILE_OFFSET_BITS && _FILE_OFFSET_BITS == 64 -# define __USE_FILE_OFFSET64 1 -#endif - -#if defined _DEFAULT_SOURCE -# define __USE_MISC 1 -#endif - -#ifdef _ATFILE_SOURCE -# define __USE_ATFILE 1 -#endif - -#ifdef _GNU_SOURCE -# define __USE_GNU 1 -#endif - -#if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0 -# if !defined __OPTIMIZE__ || __OPTIMIZE__ <= 0 -# warning _FORTIFY_SOURCE requires compiling with optimization (-O) -# elif !__GNUC_PREREQ (4, 1) -# warning _FORTIFY_SOURCE requires GCC 4.1 or later -# elif _FORTIFY_SOURCE > 1 -# define __USE_FORTIFY_LEVEL 2 -# else -# define __USE_FORTIFY_LEVEL 1 -# endif -#endif -#ifndef __USE_FORTIFY_LEVEL -# define __USE_FORTIFY_LEVEL 0 -#endif - -/* The function 'gets' existed in C89, but is impossible to use - safely. It has been removed from ISO C11 and ISO C++14. Note: for - compatibility with various implementations of <cstdio>, this test - must consider only the value of __cplusplus when compiling C++. */ -#if defined __cplusplus ? __cplusplus >= 201402L : defined __USE_ISOC11 -# define __GLIBC_USE_DEPRECATED_GETS 0 -#else -# define __GLIBC_USE_DEPRECATED_GETS 1 -#endif - -/* GNU formerly extended the scanf functions with modified format - specifiers %as, %aS, and %a[...] that allocate a buffer for the - input using malloc. This extension conflicts with ISO C99, which - defines %a as a standalone format specifier that reads a floating- - point number; moreover, POSIX.1-2008 provides the same feature - using the modifier letter 'm' instead (%ms, %mS, %m[...]). - - We now follow C99 unless GNU extensions are active and the compiler - is specifically in C89 or C++98 mode (strict or not). For - instance, with GCC, -std=gnu11 will have C99-compliant scanf with - or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the - old extension. */ -#if (defined __USE_GNU \ - && (defined __cplusplus \ - ? (__cplusplus < 201103L && !defined __GXX_EXPERIMENTAL_CXX0X__) \ - : (!defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L))) -# define __GLIBC_USE_DEPRECATED_SCANF 1 -#else -# define __GLIBC_USE_DEPRECATED_SCANF 0 -#endif - -/* Get definitions of __STDC_* predefined macros, if the compiler has - not preincluded this header automatically. */ -#include <stdc-predef.h> - -/* This macro indicates that the installed library is the GNU C Library. - For historic reasons the value now is 6 and this will stay from now - on. The use of this variable is deprecated. Use __GLIBC__ and - __GLIBC_MINOR__ now (see below) when you want to test for a specific - GNU C library version and use the values in <gnu/lib-names.h> to get - the sonames of the shared libraries. */ -#undef __GNU_LIBRARY__ -#define __GNU_LIBRARY__ 6 - -/* Major and minor version number of the GNU C library package. Use - these macros to test for features in specific releases. */ -#define __GLIBC__ 2 -#define __GLIBC_MINOR__ 30 - -#define __GLIBC_PREREQ(maj, min) \ - ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min)) - -/* This is here only because every header file already includes this one. */ -#ifndef __ASSEMBLER__ -# ifndef _SYS_CDEFS_H -# include <sys/cdefs.h> -# endif - -/* If we don't have __REDIRECT, prototypes will be missing if - __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */ -# if defined __USE_FILE_OFFSET64 && !defined __REDIRECT -# define __USE_LARGEFILE 1 -# define __USE_LARGEFILE64 1 -# endif - -#endif /* !ASSEMBLER */ - -/* Decide whether we can define 'extern inline' functions in headers. */ -#if __GNUC_PREREQ (2, 7) && defined __OPTIMIZE__ \ - && !defined __OPTIMIZE_SIZE__ && !defined __NO_INLINE__ \ - && defined __extern_inline -# define __USE_EXTERN_INLINES 1 -#endif - - -/* This is here only because every header file already includes this one. - Get the definitions of all the appropriate `__stub_FUNCTION' symbols. - <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub - that will always return failure (and set errno to ENOSYS). */ -#include <gnu/stubs.h> - - -#endif /* features.h */ +#include <misc/features.h> diff --git a/include/gnu-versions.h b/include/gnu-versions.h index d2f06f648a..eafc8c842d 100644 --- a/include/gnu-versions.h +++ b/include/gnu-versions.h @@ -1,52 +1 @@ -/* Header with interface version macros for library pieces copied elsewhere. - Copyright (C) 1995-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _GNU_VERSIONS_H -#define _GNU_VERSIONS_H 1 - -/* This file exists to define these few macros. Each specifies a version - number associated with the library interface of a piece of the C library - which is also distributed with other GNU packages. These pieces are - both part of the GNU C library and also distributed with other GNU - packages so those packages may use their facilities on systems lacking - the GNU C library. The source files for each piece surround all their - code with `#ifndef ELIDE_CODE' after defining it with this: - - #define OBSTACK_INTERFACE_VERSION 1 - #if !defined (_LIBC) && defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1 - #include <gnu-versions.h> - #if _GNU_OBSTACK_INTERFACE_VERSION == OBSTACK_INTERFACE_VERSION - #define ELIDE_CODE - #endif - #endif - - This allows those one to avoid compiling those files when part of a GNU - package not libc, on a system using a GNU C library that supports the - same interface. - - Please preserve the format of the comments after each macro. And - remember, if any of these versions change, the libc.so major version - number must change too (so avoid it)! */ - -#define _GNU_OBSTACK_INTERFACE_VERSION 1 /* vs malloc/obstack.c */ -#define _GNU_REGEX_INTERFACE_VERSION 1 /* vs posix/regex.c */ -#define _GNU_GLOB_INTERFACE_VERSION 2 /* vs posix/glob.c */ -#define _GNU_GETOPT_INTERFACE_VERSION 2 /* vs posix/getopt.c and - posix/getopt1.c */ - -#endif /* gnu-versions.h */ +#include <misc/gnu-versions.h> diff --git a/include/gnu/libc-version.h b/include/gnu/libc-version.h index 37d9e86dc4..745fb5bbd2 100644 --- a/include/gnu/libc-version.h +++ b/include/gnu/libc-version.h @@ -1,34 +1 @@ -/* Interface to GNU libc specific functions for version information. - Copyright (C) 1998-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _GNU_LIBC_VERSION_H -#define _GNU_LIBC_VERSION_H 1 - -#include <features.h> - -__BEGIN_DECLS - -/* Return string describing release status of currently running GNU libc. */ -extern const char *gnu_get_libc_release (void) __THROW; - -/* Return string describing version of currently running GNU libc. */ -extern const char *gnu_get_libc_version (void) __THROW; - -__END_DECLS - -#endif /* gnu/libc-version.h */ +#include <misc/gnu/libc-version.h> diff --git a/include/limits.h b/include/limits.h index 8195da78a4..9eb278c69b 100644 --- a/include/limits.h +++ b/include/limits.h @@ -1,192 +1 @@ -/* Copyright (C) 1991-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -/* - * ISO C99 Standard: 7.10/5.2.4.2.1 Sizes of integer types <limits.h> - */ - -#ifndef _LIBC_LIMITS_H_ -#define _LIBC_LIMITS_H_ 1 - -#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION -#include <bits/libc-header-start.h> - - -/* Maximum length of any multibyte character in any locale. - We define this value here since the gcc header does not define - the correct value. */ -#define MB_LEN_MAX 16 - - -/* If we are not using GNU CC we have to define all the symbols ourself. - Otherwise use gcc's definitions (see below). */ -#if !defined __GNUC__ || __GNUC__ < 2 - -/* We only protect from multiple inclusion here, because all the other - #include's protect themselves, and in GCC 2 we may #include_next through - multiple copies of this file before we get to GCC's. */ -# ifndef _LIMITS_H -# define _LIMITS_H 1 - -#include <bits/wordsize.h> - -/* We don't have #include_next. - Define ANSI <limits.h> for standard 32-bit words. */ - -/* These assume 8-bit `char's, 16-bit `short int's, - and 32-bit `int's and `long int's. */ - -/* Number of bits in a `char'. */ -# define CHAR_BIT 8 - -/* Minimum and maximum values a `signed char' can hold. */ -# define SCHAR_MIN (-128) -# define SCHAR_MAX 127 - -/* Maximum value an `unsigned char' can hold. (Minimum is 0.) */ -# define UCHAR_MAX 255 - -/* Minimum and maximum values a `char' can hold. */ -# ifdef __CHAR_UNSIGNED__ -# define CHAR_MIN 0 -# define CHAR_MAX UCHAR_MAX -# else -# define CHAR_MIN SCHAR_MIN -# define CHAR_MAX SCHAR_MAX -# endif - -/* Minimum and maximum values a `signed short int' can hold. */ -# define SHRT_MIN (-32768) -# define SHRT_MAX 32767 - -/* Maximum value an `unsigned short int' can hold. (Minimum is 0.) */ -# define USHRT_MAX 65535 - -/* Minimum and maximum values a `signed int' can hold. */ -# define INT_MIN (-INT_MAX - 1) -# define INT_MAX 2147483647 - -/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ -# define UINT_MAX 4294967295U - -/* Minimum and maximum values a `signed long int' can hold. */ -# if __WORDSIZE == 64 -# define LONG_MAX 9223372036854775807L -# else -# define LONG_MAX 2147483647L -# endif -# define LONG_MIN (-LONG_MAX - 1L) - -/* Maximum value an `unsigned long int' can hold. (Minimum is 0.) */ -# if __WORDSIZE == 64 -# define ULONG_MAX 18446744073709551615UL -# else -# define ULONG_MAX 4294967295UL -# endif - -# ifdef __USE_ISOC99 - -/* Minimum and maximum values a `signed long long int' can hold. */ -# define LLONG_MAX 9223372036854775807LL -# define LLONG_MIN (-LLONG_MAX - 1LL) - -/* Maximum value an `unsigned long long int' can hold. (Minimum is 0.) */ -# define ULLONG_MAX 18446744073709551615ULL - -# endif /* ISO C99 */ - -# endif /* limits.h */ -#endif /* GCC 2. */ - -#endif /* !_LIBC_LIMITS_H_ */ - - /* Get the compiler's limits.h, which defines almost all the ISO constants. - - We put this #include_next outside the double inclusion check because - it should be possible to include this file more than once and still get - the definitions from gcc's header. */ -#if defined __GNUC__ && !defined _GCC_LIMITS_H_ -/* `_GCC_LIMITS_H_' is what GCC's file defines. */ -# include_next <limits.h> -#endif - -/* The <limits.h> files in some gcc versions don't define LLONG_MIN, - LLONG_MAX, and ULLONG_MAX. Instead only the values gcc defined for - ages are available. */ -#if defined __USE_ISOC99 && defined __GNUC__ -# ifndef LLONG_MIN -# define LLONG_MIN (-LLONG_MAX-1) -# endif -# ifndef LLONG_MAX -# define LLONG_MAX __LONG_LONG_MAX__ -# endif -# ifndef ULLONG_MAX -# define ULLONG_MAX (LLONG_MAX * 2ULL + 1) -# endif -#endif - -/* The integer width macros are not defined by GCC's <limits.h> before - GCC 7, or if _GNU_SOURCE rather than - __STDC_WANT_IEC_60559_BFP_EXT__ is used to enable this feature. */ -#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X) -# ifndef CHAR_WIDTH -# define CHAR_WIDTH 8 -# endif -# ifndef SCHAR_WIDTH -# define SCHAR_WIDTH 8 -# endif -# ifndef UCHAR_WIDTH -# define UCHAR_WIDTH 8 -# endif -# ifndef SHRT_WIDTH -# define SHRT_WIDTH 16 -# endif -# ifndef USHRT_WIDTH -# define USHRT_WIDTH 16 -# endif -# ifndef INT_WIDTH -# define INT_WIDTH 32 -# endif -# ifndef UINT_WIDTH -# define UINT_WIDTH 32 -# endif -# ifndef LONG_WIDTH -# define LONG_WIDTH __WORDSIZE -# endif -# ifndef ULONG_WIDTH -# define ULONG_WIDTH __WORDSIZE -# endif -# ifndef LLONG_WIDTH -# define LLONG_WIDTH 64 -# endif -# ifndef ULLONG_WIDTH -# define ULLONG_WIDTH 64 -# endif -#endif /* Use IEC_60559_BFP_EXT. */ - -#ifdef __USE_POSIX -/* POSIX adds things to <limits.h>. */ -# include <bits/posix1_lim.h> -#endif - -#ifdef __USE_POSIX2 -# include <bits/posix2_lim.h> -#endif - -#ifdef __USE_XOPEN -# include <bits/xopen_lim.h> -#endif +#include <misc/limits.h> diff --git a/include/stdc-predef.h b/include/stdc-predef.h index eaf0a6aea8..0a8122ae37 100644 --- a/include/stdc-predef.h +++ b/include/stdc-predef.h @@ -1,60 +1 @@ -/* Copyright (C) 1991-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -#ifndef _STDC_PREDEF_H -#define _STDC_PREDEF_H 1 - -/* This header is separate from features.h so that the compiler can - include it implicitly at the start of every compilation. It must - not itself include <features.h> or any other header that includes - <features.h> because the implicit include comes before any feature - test macros that may be defined in a source file before it first - explicitly includes a system header. GCC knows the name of this - header in order to preinclude it. */ - -/* glibc's intent is to support the IEC 559 math functionality, real - and complex. If the GCC (4.9 and later) predefined macros - specifying compiler intent are available, use them to determine - whether the overall intent is to support these features; otherwise, - presume an older compiler has intent to support these features and - define these macros by default. */ - -#ifdef __GCC_IEC_559 -# if __GCC_IEC_559 > 0 -# define __STDC_IEC_559__ 1 -# endif -#else -# define __STDC_IEC_559__ 1 -#endif - -#ifdef __GCC_IEC_559_COMPLEX -# if __GCC_IEC_559_COMPLEX > 0 -# define __STDC_IEC_559_COMPLEX__ 1 -# endif -#else -# define __STDC_IEC_559_COMPLEX__ 1 -#endif - -/* wchar_t uses Unicode 10.0.0. Version 10.0 of the Unicode Standard is - synchronized with ISO/IEC 10646:2017, fifth edition, plus - the following additions from Amendment 1 to the fifth edition: - - 56 emoji characters - - 285 hentaigana - - 3 additional Zanabazar Square characters */ -#define __STDC_ISO_10646__ 201706L - -#endif +#include <misc/stdc-predef.h> diff --git a/include/values.h b/include/values.h index 401a3928c0..56ad18e803 100644 --- a/include/values.h +++ b/include/values.h @@ -1,68 +1 @@ -/* Old compatibility names for <limits.h> and <float.h> constants. - Copyright (C) 1995-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <https://www.gnu.org/licenses/>. */ - -/* This interface is obsolete. New programs should use - <limits.h> and/or <float.h> instead of <values.h>. */ - -#ifndef _VALUES_H -#define _VALUES_H 1 - -#include <features.h> - -#include <limits.h> - -#define _TYPEBITS(type) (sizeof (type) * CHAR_BIT) - -#define CHARBITS _TYPEBITS (char) -#define SHORTBITS _TYPEBITS (short int) -#define INTBITS _TYPEBITS (int) -#define LONGBITS _TYPEBITS (long int) -#define PTRBITS _TYPEBITS (char *) -#define DOUBLEBITS _TYPEBITS (double) -#define FLOATBITS _TYPEBITS (float) - -#define MINSHORT SHRT_MIN -#define MININT INT_MIN -#define MINLONG LONG_MIN - -#define MAXSHORT SHRT_MAX -#define MAXINT INT_MAX -#define MAXLONG LONG_MAX - -#define HIBITS MINSHORT -#define HIBITL MINLONG - - -#include <float.h> - -#define MAXDOUBLE DBL_MAX -#define MAXFLOAT FLT_MAX -#define MINDOUBLE DBL_MIN -#define MINFLOAT FLT_MIN -#define DMINEXP DBL_MIN_EXP -#define FMINEXP FLT_MIN_EXP -#define DMAXEXP DBL_MAX_EXP -#define FMAXEXP FLT_MAX_EXP - - -#ifdef __USE_MISC -/* Some systems define this name instead of CHAR_BIT or CHARBITS. */ -# define BITSPERBYTE CHAR_BIT -#endif - -#endif /* values.h */ +#include <misc/values.h> diff --git a/misc/Makefile b/misc/Makefile index e0465980c7..a25146d332 100644 --- a/misc/Makefile +++ b/misc/Makefile @@ -23,21 +23,22 @@ subdir := misc include ../Makeconfig -headers := sys/uio.h bits/uio-ext.h bits/uio_lim.h \ - sys/ioctl.h bits/ioctls.h bits/ioctl-types.h \ - sys/ptrace.h sys/file.h sys/dir.h sys/cdefs.h \ - ar.h a.out.h libgen.h stab.h bits/stab.def sgtty.h \ - ttyent.h paths.h sys/reboot.h \ - sys/mman.h sys/param.h bits/param.h \ - fstab.h mntent.h search.h err.h error.h \ - sys/queue.h sysexits.h syscall.h sys/syscall.h sys/swap.h \ - sys/select.h sys/sysinfo.h \ - regexp.h bits/select.h bits/mman.h sys/xattr.h \ - syslog.h sys/syslog.h \ - bits/syslog.h bits/syslog-ldbl.h bits/syslog-path.h bits/error.h \ - bits/select2.h bits/hwcap.h sys/auxv.h \ - sys/sysmacros.h bits/sysmacros.h bits/types/struct_iovec.h \ - bits/err-ldbl.h bits/error-ldbl.h +headers := \ + a.out.h ar.h err.h error.h features.h fstab.h gnu-versions.h \ + libgen.h limits.h mntent.h paths.h regexp.h search.h sgtty.h \ + stab.h stdc-predef.h syscall.h sysexits.h syslog.h ttyent.h \ + values.h \ + bits/err-ldbl.h bits/error-ldbl.h bits/error.h bits/hwcap.h \ + bits/ioctl-types.h bits/ioctls.h bits/libc-header-start.h \ + bits/mman.h bits/param.h bits/select.h bits/select2.h \ + bits/stab.def bits/syslog-ldbl.h bits/syslog-path.h \ + bits/syslog.h bits/sysmacros.h bits/types/struct_iovec.h \ + bits/uio-ext.h bits/uio_lim.h bits/xopen_lim.h \ + gnu/libc-version.h \ + sys/auxv.h sys/cdefs.h sys/dir.h sys/file.h sys/ioctl.h \ + sys/mman.h sys/param.h sys/ptrace.h sys/queue.h sys/reboot.h \ + sys/select.h sys/swap.h sys/syscall.h sys/sysinfo.h \ + sys/syslog.h sys/sysmacros.h sys/uio.h sys/xattr.h routines := brk sbrk sstk ioctl \ readv writev preadv preadv64 pwritev pwritev64 \ diff --git a/misc/bits/xopen_lim.h b/misc/bits/xopen_lim.h new file mode 100644 index 0000000000..957010d2c0 --- /dev/null +++ b/misc/bits/xopen_lim.h @@ -0,0 +1,148 @@ +/* Copyright (C) 1996-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +/* + * Never include this file directly; use <limits.h> instead. + */ + +/* Additional definitions from X/Open Portability Guide, Issue 4, Version 2 + System Interfaces and Headers, 4.16 <limits.h> + + Please note only the values which are not greater than the minimum + stated in the standard document are listed. The `sysconf' functions + should be used to obtain the actual value. */ + +#ifndef _XOPEN_LIM_H +#define _XOPEN_LIM_H 1 + +/* We do not provide fixed values for + + ARG_MAX Maximum length of argument to the `exec' function + including environment data. + + ATEXIT_MAX Maximum number of functions that may be registered + with `atexit'. + + CHILD_MAX Maximum number of simultaneous processes per real + user ID. + + OPEN_MAX Maximum number of files that one process can have open + at anyone time. + + PAGESIZE + PAGE_SIZE Size of bytes of a page. + + PASS_MAX Maximum number of significant bytes in a password. + + We only provide a fixed limit for + + IOV_MAX Maximum number of `iovec' structures that one process has + available for use with `readv' or writev'. + + if this is indeed fixed by the underlying system. +*/ + + +/* Maximum number of `iovec' structures that may be used in a single call + to `readv', `writev', etc. */ +#define _XOPEN_IOV_MAX _POSIX_UIO_MAXIOV + +#include <bits/uio_lim.h> +#ifdef __IOV_MAX +# define IOV_MAX __IOV_MAX +#else +# undef IOV_MAX +#endif + +/* Maximum value of `digit' in calls to the `printf' and `scanf' + functions. We have no limit, so return a reasonable value. */ +#define NL_ARGMAX _POSIX_ARG_MAX + +/* Maximum number of bytes in a `LANG' name. We have no limit. */ +#define NL_LANGMAX _POSIX2_LINE_MAX + +/* Maximum message number. We have no limit. */ +#define NL_MSGMAX INT_MAX + +/* Maximum number of bytes in N-to-1 collation mapping. We have no + limit. */ +#if defined __USE_GNU || !defined __USE_XOPEN2K8 +# define NL_NMAX INT_MAX +#endif + +/* Maximum set number. We have no limit. */ +#define NL_SETMAX INT_MAX + +/* Maximum number of bytes in a message. We have no limit. */ +#define NL_TEXTMAX INT_MAX + +/* Default process priority. */ +#define NZERO 20 + + +/* Number of bits in a word of type `int'. */ +#ifdef INT_MAX +# if INT_MAX == 32767 +# define WORD_BIT 16 +# else +# if INT_MAX == 2147483647 +# define WORD_BIT 32 +# else +/* Safe assumption. */ +# define WORD_BIT 64 +# endif +# endif +#elif defined __INT_MAX__ +# if __INT_MAX__ == 32767 +# define WORD_BIT 16 +# else +# if __INT_MAX__ == 2147483647 +# define WORD_BIT 32 +# else +/* Safe assumption. */ +# define WORD_BIT 64 +# endif +# endif +#else +# define WORD_BIT 32 +#endif + +/* Number of bits in a word of type `long int'. */ +#ifdef LONG_MAX +# if LONG_MAX == 2147483647 +# define LONG_BIT 32 +# else +/* Safe assumption. */ +# define LONG_BIT 64 +# endif +#elif defined __LONG_MAX__ +# if __LONG_MAX__ == 2147483647 +# define LONG_BIT 32 +# else +/* Safe assumption. */ +# define LONG_BIT 64 +# endif +#else +# include <bits/wordsize.h> +# if __WORDSIZE == 64 +# define LONG_BIT 64 +# else +# define LONG_BIT 32 +# endif +#endif + +#endif /* bits/xopen_lim.h */ diff --git a/misc/features.h b/misc/features.h new file mode 100644 index 0000000000..af371842bb --- /dev/null +++ b/misc/features.h @@ -0,0 +1,492 @@ +/* Copyright (C) 1991-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _FEATURES_H +#define _FEATURES_H 1 + +/* These are defined by the user (or the compiler) + to specify the desired environment: + + __STRICT_ANSI__ ISO Standard C. + _ISOC99_SOURCE Extensions to ISO C89 from ISO C99. + _ISOC11_SOURCE Extensions to ISO C99 from ISO C11. + _ISOC2X_SOURCE Extensions to ISO C99 from ISO C2X. + __STDC_WANT_LIB_EXT2__ + Extensions to ISO C99 from TR 27431-2:2010. + __STDC_WANT_IEC_60559_BFP_EXT__ + Extensions to ISO C11 from TS 18661-1:2014. + __STDC_WANT_IEC_60559_FUNCS_EXT__ + Extensions to ISO C11 from TS 18661-4:2015. + __STDC_WANT_IEC_60559_TYPES_EXT__ + Extensions to ISO C11 from TS 18661-3:2015. + + _POSIX_SOURCE IEEE Std 1003.1. + _POSIX_C_SOURCE If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2; + if >=199309L, add IEEE Std 1003.1b-1993; + if >=199506L, add IEEE Std 1003.1c-1995; + if >=200112L, all of IEEE 1003.1-2004 + if >=200809L, all of IEEE 1003.1-2008 + _XOPEN_SOURCE Includes POSIX and XPG things. Set to 500 if + Single Unix conformance is wanted, to 600 for the + sixth revision, to 700 for the seventh revision. + _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions. + _LARGEFILE_SOURCE Some more functions for correct standard I/O. + _LARGEFILE64_SOURCE Additional functionality from LFS for large files. + _FILE_OFFSET_BITS=N Select default filesystem interface. + _ATFILE_SOURCE Additional *at interfaces. + _GNU_SOURCE All of the above, plus GNU extensions. + _DEFAULT_SOURCE The default set of features (taking precedence over + __STRICT_ANSI__). + + _FORTIFY_SOURCE Add security hardening to many library functions. + Set to 1 or 2; 2 performs stricter checks than 1. + + _REENTRANT, _THREAD_SAFE + Obsolete; equivalent to _POSIX_C_SOURCE=199506L. + + The `-ansi' switch to the GNU C compiler, and standards conformance + options such as `-std=c99', define __STRICT_ANSI__. If none of + these are defined, or if _DEFAULT_SOURCE is defined, the default is + to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to + 200809L, as well as enabling miscellaneous functions from BSD and + SVID. If more than one of these are defined, they accumulate. For + example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together + give you ISO C, 1003.1, and 1003.2, but nothing else. + + These are defined by this file and are used by the + header files to decide what to declare or define: + + __GLIBC_USE (F) Define things from feature set F. This is defined + to 1 or 0; the subsequent macros are either defined + or undefined, and those tests should be moved to + __GLIBC_USE. + __USE_ISOC11 Define ISO C11 things. + __USE_ISOC99 Define ISO C99 things. + __USE_ISOC95 Define ISO C90 AMD1 (C95) things. + __USE_ISOCXX11 Define ISO C++11 things. + __USE_POSIX Define IEEE Std 1003.1 things. + __USE_POSIX2 Define IEEE Std 1003.2 things. + __USE_POSIX199309 Define IEEE Std 1003.1, and .1b things. + __USE_POSIX199506 Define IEEE Std 1003.1, .1b, .1c and .1i things. + __USE_XOPEN Define XPG things. + __USE_XOPEN_EXTENDED Define X/Open Unix things. + __USE_UNIX98 Define Single Unix V2 things. + __USE_XOPEN2K Define XPG6 things. + __USE_XOPEN2KXSI Define XPG6 XSI things. + __USE_XOPEN2K8 Define XPG7 things. + __USE_XOPEN2K8XSI Define XPG7 XSI things. + __USE_LARGEFILE Define correct standard I/O things. + __USE_LARGEFILE64 Define LFS things with separate names. + __USE_FILE_OFFSET64 Define 64bit interface as default. + __USE_MISC Define things from 4.3BSD or System V Unix. + __USE_ATFILE Define *at interfaces and AT_* constants for them. + __USE_GNU Define GNU extensions. + __USE_FORTIFY_LEVEL Additional security measures used, according to level. + + The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are + defined by this file unconditionally. `__GNU_LIBRARY__' is provided + only for compatibility. All new code should use the other symbols + to test for features. + + All macros listed above as possibly being defined by this file are + explicitly undefined if they are not explicitly defined. + Feature-test macros that are not defined by the user or compiler + but are implied by the other feature-test macros defined (or by the + lack of any definitions) are defined by the file. + + ISO C feature test macros depend on the definition of the macro + when an affected header is included, not when the first system + header is included, and so they are handled in + <bits/libc-header-start.h>, which does not have a multiple include + guard. Feature test macros that can be handled from the first + system header included are handled here. */ + + +/* Undefine everything, so we get a clean slate. */ +#undef __USE_ISOC11 +#undef __USE_ISOC99 +#undef __USE_ISOC95 +#undef __USE_ISOCXX11 +#undef __USE_POSIX +#undef __USE_POSIX2 +#undef __USE_POSIX199309 +#undef __USE_POSIX199506 +#undef __USE_XOPEN +#undef __USE_XOPEN_EXTENDED +#undef __USE_UNIX98 +#undef __USE_XOPEN2K +#undef __USE_XOPEN2KXSI +#undef __USE_XOPEN2K8 +#undef __USE_XOPEN2K8XSI +#undef __USE_LARGEFILE +#undef __USE_LARGEFILE64 +#undef __USE_FILE_OFFSET64 +#undef __USE_MISC +#undef __USE_ATFILE +#undef __USE_GNU +#undef __USE_FORTIFY_LEVEL +#undef __KERNEL_STRICT_NAMES +#undef __GLIBC_USE_ISOC2X +#undef __GLIBC_USE_DEPRECATED_GETS +#undef __GLIBC_USE_DEPRECATED_SCANF + +/* Suppress kernel-name space pollution unless user expressedly asks + for it. */ +#ifndef _LOOSE_KERNEL_NAMES +# define __KERNEL_STRICT_NAMES +#endif + +/* Convenience macro to test the version of gcc. + Use like this: + #if __GNUC_PREREQ (2,8) + ... code requiring gcc 2.8 or later ... + #endif + Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was + added in 2.0. */ +#if defined __GNUC__ && defined __GNUC_MINOR__ +# define __GNUC_PREREQ(maj, min) \ + ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) +#else +# define __GNUC_PREREQ(maj, min) 0 +#endif + +/* Similarly for clang. Features added to GCC after version 4.2 may + or may not also be available in clang, and clang's definitions of + __GNUC(_MINOR)__ are fixed at 4 and 2 respectively. Not all such + features can be queried via __has_extension/__has_feature. */ +#if defined __clang_major__ && defined __clang_minor__ +# define __glibc_clang_prereq(maj, min) \ + ((__clang_major__ << 16) + __clang_minor__ >= ((maj) << 16) + (min)) +#else +# define __glibc_clang_prereq(maj, min) 0 +#endif + +/* Whether to use feature set F. */ +#define __GLIBC_USE(F) __GLIBC_USE_ ## F + +/* _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for + _DEFAULT_SOURCE. If _DEFAULT_SOURCE is present we do not + issue a warning; the expectation is that the source is being + transitioned to use the new macro. */ +#if (defined _BSD_SOURCE || defined _SVID_SOURCE) \ + && !defined _DEFAULT_SOURCE +# warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" +# undef _DEFAULT_SOURCE +# define _DEFAULT_SOURCE 1 +#endif + +/* If _GNU_SOURCE was defined by the user, turn on all the other features. */ +#ifdef _GNU_SOURCE +# undef _ISOC95_SOURCE +# define _ISOC95_SOURCE 1 +# undef _ISOC99_SOURCE +# define _ISOC99_SOURCE 1 +# undef _ISOC11_SOURCE +# define _ISOC11_SOURCE 1 +# undef _ISOC2X_SOURCE +# define _ISOC2X_SOURCE 1 +# undef _POSIX_SOURCE +# define _POSIX_SOURCE 1 +# undef _POSIX_C_SOURCE +# define _POSIX_C_SOURCE 200809L +# undef _XOPEN_SOURCE +# define _XOPEN_SOURCE 700 +# undef _XOPEN_SOURCE_EXTENDED +# define _XOPEN_SOURCE_EXTENDED 1 +# undef _LARGEFILE64_SOURCE +# define _LARGEFILE64_SOURCE 1 +# undef _DEFAULT_SOURCE +# define _DEFAULT_SOURCE 1 +# undef _ATFILE_SOURCE +# define _ATFILE_SOURCE 1 +#endif + +/* If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined, + define _DEFAULT_SOURCE. */ +#if (defined _DEFAULT_SOURCE \ + || (!defined __STRICT_ANSI__ \ + && !defined _ISOC99_SOURCE && !defined _ISOC11_SOURCE \ + && !defined _ISOC2X_SOURCE \ + && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE \ + && !defined _XOPEN_SOURCE)) +# undef _DEFAULT_SOURCE +# define _DEFAULT_SOURCE 1 +#endif + +/* This is to enable the ISO C2X extension. */ +#if (defined _ISOC2X_SOURCE \ + || (defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L)) +# define __GLIBC_USE_ISOC2X 1 +#else +# define __GLIBC_USE_ISOC2X 0 +#endif + +/* This is to enable the ISO C11 extension. */ +#if (defined _ISOC11_SOURCE || defined _ISOC2X_SOURCE \ + || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 201112L)) +# define __USE_ISOC11 1 +#endif + +/* This is to enable the ISO C99 extension. */ +#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ + || defined _ISOC2X_SOURCE \ + || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)) +# define __USE_ISOC99 1 +#endif + +/* This is to enable the ISO C90 Amendment 1:1995 extension. */ +#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \ + || defined _ISOC2X_SOURCE \ + || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199409L)) +# define __USE_ISOC95 1 +#endif + +#ifdef __cplusplus +/* This is to enable compatibility for ISO C++17. */ +# if __cplusplus >= 201703L +# define __USE_ISOC11 1 +# endif +/* This is to enable compatibility for ISO C++11. + Check the temporary macro for now, too. */ +# if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__ +# define __USE_ISOCXX11 1 +# define __USE_ISOC99 1 +# endif +#endif + +/* If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE + is defined, use POSIX.1-2008 (or another version depending on + _XOPEN_SOURCE). */ +#ifdef _DEFAULT_SOURCE +# if !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE +# define __USE_POSIX_IMPLICITLY 1 +# endif +# undef _POSIX_SOURCE +# define _POSIX_SOURCE 1 +# undef _POSIX_C_SOURCE +# define _POSIX_C_SOURCE 200809L +#endif + +#if ((!defined __STRICT_ANSI__ \ + || (defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 500)) \ + && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE) +# define _POSIX_SOURCE 1 +# if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 500 +# define _POSIX_C_SOURCE 2 +# elif defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 600 +# define _POSIX_C_SOURCE 199506L +# elif defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 700 +# define _POSIX_C_SOURCE 200112L +# else +# define _POSIX_C_SOURCE 200809L +# endif +# define __USE_POSIX_IMPLICITLY 1 +#endif + +/* Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be + defined in all multithreaded code. GNU libc has not required this + for many years. We now treat them as compatibility synonyms for + _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with + comprehensive support for multithreaded code. Using them never + lowers the selected level of POSIX conformance, only raises it. */ +#if ((!defined _POSIX_C_SOURCE || (_POSIX_C_SOURCE - 0) < 199506L) \ + && (defined _REENTRANT || defined _THREAD_SAFE)) +# define _POSIX_SOURCE 1 +# undef _POSIX_C_SOURCE +# define _POSIX_C_SOURCE 199506L +#endif + +#if (defined _POSIX_SOURCE \ + || (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 1) \ + || defined _XOPEN_SOURCE) +# define __USE_POSIX 1 +#endif + +#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 2 || defined _XOPEN_SOURCE +# define __USE_POSIX2 1 +#endif + +#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199309L +# define __USE_POSIX199309 1 +#endif + +#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199506L +# define __USE_POSIX199506 1 +#endif + +#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200112L +# define __USE_XOPEN2K 1 +# undef __USE_ISOC95 +# define __USE_ISOC95 1 +# undef __USE_ISOC99 +# define __USE_ISOC99 1 +#endif + +#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200809L +# define __USE_XOPEN2K8 1 +# undef _ATFILE_SOURCE +# define _ATFILE_SOURCE 1 +#endif + +#ifdef _XOPEN_SOURCE +# define __USE_XOPEN 1 +# if (_XOPEN_SOURCE - 0) >= 500 +# define __USE_XOPEN_EXTENDED 1 +# define __USE_UNIX98 1 +# undef _LARGEFILE_SOURCE +# define _LARGEFILE_SOURCE 1 +# if (_XOPEN_SOURCE - 0) >= 600 +# if (_XOPEN_SOURCE - 0) >= 700 +# define __USE_XOPEN2K8 1 +# define __USE_XOPEN2K8XSI 1 +# endif +# define __USE_XOPEN2K 1 +# define __USE_XOPEN2KXSI 1 +# undef __USE_ISOC95 +# define __USE_ISOC95 1 +# undef __USE_ISOC99 +# define __USE_ISOC99 1 +# endif +# else +# ifdef _XOPEN_SOURCE_EXTENDED +# define __USE_XOPEN_EXTENDED 1 +# endif +# endif +#endif + +#ifdef _LARGEFILE_SOURCE +# define __USE_LARGEFILE 1 +#endif + +#ifdef _LARGEFILE64_SOURCE +# define __USE_LARGEFILE64 1 +#endif + +#if defined _FILE_OFFSET_BITS && _FILE_OFFSET_BITS == 64 +# define __USE_FILE_OFFSET64 1 +#endif + +#if defined _DEFAULT_SOURCE +# define __USE_MISC 1 +#endif + +#ifdef _ATFILE_SOURCE +# define __USE_ATFILE 1 +#endif + +#ifdef _GNU_SOURCE +# define __USE_GNU 1 +#endif + +#if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0 +# if !defined __OPTIMIZE__ || __OPTIMIZE__ <= 0 +# warning _FORTIFY_SOURCE requires compiling with optimization (-O) +# elif !__GNUC_PREREQ (4, 1) +# warning _FORTIFY_SOURCE requires GCC 4.1 or later +# elif _FORTIFY_SOURCE > 1 +# define __USE_FORTIFY_LEVEL 2 +# else +# define __USE_FORTIFY_LEVEL 1 +# endif +#endif +#ifndef __USE_FORTIFY_LEVEL +# define __USE_FORTIFY_LEVEL 0 +#endif + +/* The function 'gets' existed in C89, but is impossible to use + safely. It has been removed from ISO C11 and ISO C++14. Note: for + compatibility with various implementations of <cstdio>, this test + must consider only the value of __cplusplus when compiling C++. */ +#if defined __cplusplus ? __cplusplus >= 201402L : defined __USE_ISOC11 +# define __GLIBC_USE_DEPRECATED_GETS 0 +#else +# define __GLIBC_USE_DEPRECATED_GETS 1 +#endif + +/* GNU formerly extended the scanf functions with modified format + specifiers %as, %aS, and %a[...] that allocate a buffer for the + input using malloc. This extension conflicts with ISO C99, which + defines %a as a standalone format specifier that reads a floating- + point number; moreover, POSIX.1-2008 provides the same feature + using the modifier letter 'm' instead (%ms, %mS, %m[...]). + + We now follow C99 unless GNU extensions are active and the compiler + is specifically in C89 or C++98 mode (strict or not). For + instance, with GCC, -std=gnu11 will have C99-compliant scanf with + or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the + old extension. */ +#if (defined __USE_GNU \ + && (defined __cplusplus \ + ? (__cplusplus < 201103L && !defined __GXX_EXPERIMENTAL_CXX0X__) \ + : (!defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L))) +# define __GLIBC_USE_DEPRECATED_SCANF 1 +#else +# define __GLIBC_USE_DEPRECATED_SCANF 0 +#endif + +/* Get definitions of __STDC_* predefined macros, if the compiler has + not preincluded this header automatically. */ +#include <stdc-predef.h> + +/* This macro indicates that the installed library is the GNU C Library. + For historic reasons the value now is 6 and this will stay from now + on. The use of this variable is deprecated. Use __GLIBC__ and + __GLIBC_MINOR__ now (see below) when you want to test for a specific + GNU C library version and use the values in <gnu/lib-names.h> to get + the sonames of the shared libraries. */ +#undef __GNU_LIBRARY__ +#define __GNU_LIBRARY__ 6 + +/* Major and minor version number of the GNU C library package. Use + these macros to test for features in specific releases. */ +#define __GLIBC__ 2 +#define __GLIBC_MINOR__ 30 + +#define __GLIBC_PREREQ(maj, min) \ + ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min)) + +/* This is here only because every header file already includes this one. */ +#ifndef __ASSEMBLER__ +# ifndef _SYS_CDEFS_H +# include <sys/cdefs.h> +# endif + +/* If we don't have __REDIRECT, prototypes will be missing if + __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */ +# if defined __USE_FILE_OFFSET64 && !defined __REDIRECT +# define __USE_LARGEFILE 1 +# define __USE_LARGEFILE64 1 +# endif + +#endif /* !ASSEMBLER */ + +/* Decide whether we can define 'extern inline' functions in headers. */ +#if __GNUC_PREREQ (2, 7) && defined __OPTIMIZE__ \ + && !defined __OPTIMIZE_SIZE__ && !defined __NO_INLINE__ \ + && defined __extern_inline +# define __USE_EXTERN_INLINES 1 +#endif + + +/* This is here only because every header file already includes this one. + Get the definitions of all the appropriate `__stub_FUNCTION' symbols. + <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub + that will always return failure (and set errno to ENOSYS). */ +#include <gnu/stubs.h> + + +#endif /* features.h */ diff --git a/misc/gnu-versions.h b/misc/gnu-versions.h new file mode 100644 index 0000000000..d2f06f648a --- /dev/null +++ b/misc/gnu-versions.h @@ -0,0 +1,52 @@ +/* Header with interface version macros for library pieces copied elsewhere. + Copyright (C) 1995-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _GNU_VERSIONS_H +#define _GNU_VERSIONS_H 1 + +/* This file exists to define these few macros. Each specifies a version + number associated with the library interface of a piece of the C library + which is also distributed with other GNU packages. These pieces are + both part of the GNU C library and also distributed with other GNU + packages so those packages may use their facilities on systems lacking + the GNU C library. The source files for each piece surround all their + code with `#ifndef ELIDE_CODE' after defining it with this: + + #define OBSTACK_INTERFACE_VERSION 1 + #if !defined (_LIBC) && defined (__GNU_LIBRARY__) && __GNU_LIBRARY__ > 1 + #include <gnu-versions.h> + #if _GNU_OBSTACK_INTERFACE_VERSION == OBSTACK_INTERFACE_VERSION + #define ELIDE_CODE + #endif + #endif + + This allows those one to avoid compiling those files when part of a GNU + package not libc, on a system using a GNU C library that supports the + same interface. + + Please preserve the format of the comments after each macro. And + remember, if any of these versions change, the libc.so major version + number must change too (so avoid it)! */ + +#define _GNU_OBSTACK_INTERFACE_VERSION 1 /* vs malloc/obstack.c */ +#define _GNU_REGEX_INTERFACE_VERSION 1 /* vs posix/regex.c */ +#define _GNU_GLOB_INTERFACE_VERSION 2 /* vs posix/glob.c */ +#define _GNU_GETOPT_INTERFACE_VERSION 2 /* vs posix/getopt.c and + posix/getopt1.c */ + +#endif /* gnu-versions.h */ diff --git a/misc/gnu/libc-version.h b/misc/gnu/libc-version.h new file mode 100644 index 0000000000..37d9e86dc4 --- /dev/null +++ b/misc/gnu/libc-version.h @@ -0,0 +1,34 @@ +/* Interface to GNU libc specific functions for version information. + Copyright (C) 1998-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _GNU_LIBC_VERSION_H +#define _GNU_LIBC_VERSION_H 1 + +#include <features.h> + +__BEGIN_DECLS + +/* Return string describing release status of currently running GNU libc. */ +extern const char *gnu_get_libc_release (void) __THROW; + +/* Return string describing version of currently running GNU libc. */ +extern const char *gnu_get_libc_version (void) __THROW; + +__END_DECLS + +#endif /* gnu/libc-version.h */ diff --git a/misc/limits.h b/misc/limits.h new file mode 100644 index 0000000000..8195da78a4 --- /dev/null +++ b/misc/limits.h @@ -0,0 +1,192 @@ +/* Copyright (C) 1991-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +/* + * ISO C99 Standard: 7.10/5.2.4.2.1 Sizes of integer types <limits.h> + */ + +#ifndef _LIBC_LIMITS_H_ +#define _LIBC_LIMITS_H_ 1 + +#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION +#include <bits/libc-header-start.h> + + +/* Maximum length of any multibyte character in any locale. + We define this value here since the gcc header does not define + the correct value. */ +#define MB_LEN_MAX 16 + + +/* If we are not using GNU CC we have to define all the symbols ourself. + Otherwise use gcc's definitions (see below). */ +#if !defined __GNUC__ || __GNUC__ < 2 + +/* We only protect from multiple inclusion here, because all the other + #include's protect themselves, and in GCC 2 we may #include_next through + multiple copies of this file before we get to GCC's. */ +# ifndef _LIMITS_H +# define _LIMITS_H 1 + +#include <bits/wordsize.h> + +/* We don't have #include_next. + Define ANSI <limits.h> for standard 32-bit words. */ + +/* These assume 8-bit `char's, 16-bit `short int's, + and 32-bit `int's and `long int's. */ + +/* Number of bits in a `char'. */ +# define CHAR_BIT 8 + +/* Minimum and maximum values a `signed char' can hold. */ +# define SCHAR_MIN (-128) +# define SCHAR_MAX 127 + +/* Maximum value an `unsigned char' can hold. (Minimum is 0.) */ +# define UCHAR_MAX 255 + +/* Minimum and maximum values a `char' can hold. */ +# ifdef __CHAR_UNSIGNED__ +# define CHAR_MIN 0 +# define CHAR_MAX UCHAR_MAX +# else +# define CHAR_MIN SCHAR_MIN +# define CHAR_MAX SCHAR_MAX +# endif + +/* Minimum and maximum values a `signed short int' can hold. */ +# define SHRT_MIN (-32768) +# define SHRT_MAX 32767 + +/* Maximum value an `unsigned short int' can hold. (Minimum is 0.) */ +# define USHRT_MAX 65535 + +/* Minimum and maximum values a `signed int' can hold. */ +# define INT_MIN (-INT_MAX - 1) +# define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +# define UINT_MAX 4294967295U + +/* Minimum and maximum values a `signed long int' can hold. */ +# if __WORDSIZE == 64 +# define LONG_MAX 9223372036854775807L +# else +# define LONG_MAX 2147483647L +# endif +# define LONG_MIN (-LONG_MAX - 1L) + +/* Maximum value an `unsigned long int' can hold. (Minimum is 0.) */ +# if __WORDSIZE == 64 +# define ULONG_MAX 18446744073709551615UL +# else +# define ULONG_MAX 4294967295UL +# endif + +# ifdef __USE_ISOC99 + +/* Minimum and maximum values a `signed long long int' can hold. */ +# define LLONG_MAX 9223372036854775807LL +# define LLONG_MIN (-LLONG_MAX - 1LL) + +/* Maximum value an `unsigned long long int' can hold. (Minimum is 0.) */ +# define ULLONG_MAX 18446744073709551615ULL + +# endif /* ISO C99 */ + +# endif /* limits.h */ +#endif /* GCC 2. */ + +#endif /* !_LIBC_LIMITS_H_ */ + + /* Get the compiler's limits.h, which defines almost all the ISO constants. + + We put this #include_next outside the double inclusion check because + it should be possible to include this file more than once and still get + the definitions from gcc's header. */ +#if defined __GNUC__ && !defined _GCC_LIMITS_H_ +/* `_GCC_LIMITS_H_' is what GCC's file defines. */ +# include_next <limits.h> +#endif + +/* The <limits.h> files in some gcc versions don't define LLONG_MIN, + LLONG_MAX, and ULLONG_MAX. Instead only the values gcc defined for + ages are available. */ +#if defined __USE_ISOC99 && defined __GNUC__ +# ifndef LLONG_MIN +# define LLONG_MIN (-LLONG_MAX-1) +# endif +# ifndef LLONG_MAX +# define LLONG_MAX __LONG_LONG_MAX__ +# endif +# ifndef ULLONG_MAX +# define ULLONG_MAX (LLONG_MAX * 2ULL + 1) +# endif +#endif + +/* The integer width macros are not defined by GCC's <limits.h> before + GCC 7, or if _GNU_SOURCE rather than + __STDC_WANT_IEC_60559_BFP_EXT__ is used to enable this feature. */ +#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X) +# ifndef CHAR_WIDTH +# define CHAR_WIDTH 8 +# endif +# ifndef SCHAR_WIDTH +# define SCHAR_WIDTH 8 +# endif +# ifndef UCHAR_WIDTH +# define UCHAR_WIDTH 8 +# endif +# ifndef SHRT_WIDTH +# define SHRT_WIDTH 16 +# endif +# ifndef USHRT_WIDTH +# define USHRT_WIDTH 16 +# endif +# ifndef INT_WIDTH +# define INT_WIDTH 32 +# endif +# ifndef UINT_WIDTH +# define UINT_WIDTH 32 +# endif +# ifndef LONG_WIDTH +# define LONG_WIDTH __WORDSIZE +# endif +# ifndef ULONG_WIDTH +# define ULONG_WIDTH __WORDSIZE +# endif +# ifndef LLONG_WIDTH +# define LLONG_WIDTH 64 +# endif +# ifndef ULLONG_WIDTH +# define ULLONG_WIDTH 64 +# endif +#endif /* Use IEC_60559_BFP_EXT. */ + +#ifdef __USE_POSIX +/* POSIX adds things to <limits.h>. */ +# include <bits/posix1_lim.h> +#endif + +#ifdef __USE_POSIX2 +# include <bits/posix2_lim.h> +#endif + +#ifdef __USE_XOPEN +# include <bits/xopen_lim.h> +#endif diff --git a/misc/stdc-predef.h b/misc/stdc-predef.h new file mode 100644 index 0000000000..eaf0a6aea8 --- /dev/null +++ b/misc/stdc-predef.h @@ -0,0 +1,60 @@ +/* Copyright (C) 1991-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _STDC_PREDEF_H +#define _STDC_PREDEF_H 1 + +/* This header is separate from features.h so that the compiler can + include it implicitly at the start of every compilation. It must + not itself include <features.h> or any other header that includes + <features.h> because the implicit include comes before any feature + test macros that may be defined in a source file before it first + explicitly includes a system header. GCC knows the name of this + header in order to preinclude it. */ + +/* glibc's intent is to support the IEC 559 math functionality, real + and complex. If the GCC (4.9 and later) predefined macros + specifying compiler intent are available, use them to determine + whether the overall intent is to support these features; otherwise, + presume an older compiler has intent to support these features and + define these macros by default. */ + +#ifdef __GCC_IEC_559 +# if __GCC_IEC_559 > 0 +# define __STDC_IEC_559__ 1 +# endif +#else +# define __STDC_IEC_559__ 1 +#endif + +#ifdef __GCC_IEC_559_COMPLEX +# if __GCC_IEC_559_COMPLEX > 0 +# define __STDC_IEC_559_COMPLEX__ 1 +# endif +#else +# define __STDC_IEC_559_COMPLEX__ 1 +#endif + +/* wchar_t uses Unicode 10.0.0. Version 10.0 of the Unicode Standard is + synchronized with ISO/IEC 10646:2017, fifth edition, plus + the following additions from Amendment 1 to the fifth edition: + - 56 emoji characters + - 285 hentaigana + - 3 additional Zanabazar Square characters */ +#define __STDC_ISO_10646__ 201706L + +#endif diff --git a/misc/values.h b/misc/values.h new file mode 100644 index 0000000000..401a3928c0 --- /dev/null +++ b/misc/values.h @@ -0,0 +1,68 @@ +/* Old compatibility names for <limits.h> and <float.h> constants. + Copyright (C) 1995-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +/* This interface is obsolete. New programs should use + <limits.h> and/or <float.h> instead of <values.h>. */ + +#ifndef _VALUES_H +#define _VALUES_H 1 + +#include <features.h> + +#include <limits.h> + +#define _TYPEBITS(type) (sizeof (type) * CHAR_BIT) + +#define CHARBITS _TYPEBITS (char) +#define SHORTBITS _TYPEBITS (short int) +#define INTBITS _TYPEBITS (int) +#define LONGBITS _TYPEBITS (long int) +#define PTRBITS _TYPEBITS (char *) +#define DOUBLEBITS _TYPEBITS (double) +#define FLOATBITS _TYPEBITS (float) + +#define MINSHORT SHRT_MIN +#define MININT INT_MIN +#define MINLONG LONG_MIN + +#define MAXSHORT SHRT_MAX +#define MAXINT INT_MAX +#define MAXLONG LONG_MAX + +#define HIBITS MINSHORT +#define HIBITL MINLONG + + +#include <float.h> + +#define MAXDOUBLE DBL_MAX +#define MAXFLOAT FLT_MAX +#define MINDOUBLE DBL_MIN +#define MINFLOAT FLT_MIN +#define DMINEXP DBL_MIN_EXP +#define FMINEXP FLT_MIN_EXP +#define DMAXEXP DBL_MAX_EXP +#define FMAXEXP FLT_MAX_EXP + + +#ifdef __USE_MISC +/* Some systems define this name instead of CHAR_BIT or CHARBITS. */ +# define BITSPERBYTE CHAR_BIT +#endif + +#endif /* values.h */ diff --git a/sysdeps/mach/hurd/bits/errno.h b/sysdeps/mach/hurd/bits/errno.h index 8f2fbfd80f..8e8d1cc468 100644 --- a/sysdeps/mach/hurd/bits/errno.h +++ b/sysdeps/mach/hurd/bits/errno.h @@ -1,6 +1,7 @@ /* This file generated by errnos.awk from errno.texi stdc-predef.h + ../misc/stdc-predef.h libc-symbols.h mach/message.h mach/kern_return.h |