mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 07:20:11 +00:00
de1c3ebb59
* misc/bits/syslog.h (syslog): When __va_arg_pack is defined,
implement as __extern_always_inline function.
(vsyslog): Define as __extern_always_inline function unconditionally.
* libio/bits/stdio2.h (sprintf, snprintf, printf, fprintf):
When __va_arg_pack is defined, implement as __extern_always_inline
functions.
(vsprintf, vsnprintf, vprintf, vfprintf): Define as
__extern_always_inline functions unconditionally.
* libio/bits/stdio.h (vprintf): Ifdef out the inline when
bits/stdio2.h will be included.
* wcsmbs/bits/wchar2.h (__swprintf_alias): New redirect.
(swprintf, wprintf, fwprintf): When __va_arg_pack is defined,
implement as __extern_always_inline functions.
(vswprintf, vwprintf, vfwprintf): Define as
__extern_always_inline functions unconditionally.
* debug/tst-chk1.c (do_test): Enable remaining tests for C++.
2007-09-03 Jakub Jelinek <jakub@redhat.com>
* misc/sys/cdefs.h (__extern_inline, __extern_always_inline): Only
define in C++ for GCC 4.3+, in C++ always use __gnu_inline__
attribute.
* include/features.h (__USE_EXTERN_INLINES): Define only when
__extern_inline is defined.
* stdlib/stdlib.h: Include bits/stdlib.h when __extern_always_inline
is defined instead of when not __cplusplus.
* misc/sys/syslog.h: Include bits/syslog.h when __extern_always_inline
is defined instead of when not __cplusplus.
* socket/sys/socket.h: Include bits/socket2.h when
__extern_always_inline is defined instead of when not __cplusplus.
* libio/stdio.h: Include bits/stdio2.h when __extern_always_inline
is defined instead of when not __cplusplus.
* posix/unistd.h: Include bits/unistd.h when __extern_always_inline
is defined instead of when not __cplusplus.
* string/string.h: Include bits/string3.h when __extern_always_inline
is defined instead of when not __cplusplus.
* wcsmbs/wchar.h: Include bits/wchar2.h when __extern_always_inline
is defined instead of when not __cplusplus.
(btowc, wctob): Don't guard the inlines with ifndef __cplusplus.
* io/fcntl.h: Don't include bits/fcntl2.h if __extern_always_inline
is not defined.
* misc/bits/syslog-ldbl.h: Guard *_chk stuff with
defined __extern_always_inline instead of !defined __cplusplus.
* libio/bits/stdio-ldbl.h: Likewise.
* wcsmbs/bits/wchar-ldbl.h: Likewise.
* misc/bits/syslog.h (syslog): Don't define for C++.
(vsyslog): Use __extern_always_inline function for C++ instead of
a macro.
* libio/bits/stdio.h (__STDIO_INLINE): Define to __extern_inline
whenever that macro is defined.
(vprintf): Don't provide the inline for C++.
(fread_unlocked, fwrite_unlocked): Don't define the macros for C++.
* libio/bits/stdio2.h (sprintf, snprintf, printf, fprintf): Don't
define the macros for C++.
(vsprintf, vsnprintf, vprintf, vfprintf): Define as
__extern_always_inline functions for C++.
* io/sys/stat.h (stat, lstat, fstat, fstatat, mknod, mknodat,
stat64, lstat64, fstat64, fstatat64): Don't define if not
__USE_EXTERN_INLINES.
* wcsmbs/bits/wchar2.h: Fix #error message.
(swprintf, wprintf, fwprintf): Don't define the macros for C++.
(vswprintf, vwprintf, vfwprintf): Define using
__extern_always_inline functions for C++.
* string/bits/string3.h: Don't #undef macros if __cplusplus.
(memcpy, memmove, mempcpy, memset, bcopy, bzero, strcpy, stpcpy,
strncpy, strcat, strncat): Define as __extern_always_inline
functions instead of macros for C++.
* math/bits/cmathcalls.h: Guard __extern_inline routines with
defined __extern_inline.
* sysdeps/alpha/fpu/bits/mathinline.h (__MATH_INLINE): Define
to __extern_inline whenever that macro is defined.
* sysdeps/ia64/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
* sysdeps/i386/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
* sysdeps/i386/i486/bits/string.h (__STRING_INLINE): Likewise.
* sysdeps/s390/bits/string.h (__STRING_INLINE): Likewise.
* sysdeps/s390/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
* sysdeps/powerpc/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
* sysdeps/x86_64/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
* sysdeps/sparc/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
* sysdeps/unix/sysv/linux/sys/sysmacros.h (gnu_dev_major,
gnu_dev_minor, gnu_dev_makedev): Remove __extern_inline from
prototypes. Only provide __extern_inline routines if
__USE_EXTERN_INLINES.
* debug/Makefile: Add rules to build and run tst-{,lfs}chk{4,5,6}
tests.
* debug/tst-chk1.c (do_prepare, do_test): Allow compilation as C++.
For now avoid some *printf tests in C++. Skip all testing
if __USE_FORTIFY_LEVEL is defined, but __extern_always_inline macro
is not.
* debug/tst-chk4.cc: New file.
* debug/tst-chk5.cc: New file.
* debug/tst-chk6.cc: New file.
* debug/tst-lfschk4.cc: New file.
* debug/tst-lfschk5.cc: New file.
* debug/tst-lfschk6.cc: New file.
* include/wchar.h (__vfwprintf_chk, __vswprintf_chk): Avoid
prototypes in C++.
* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
__vfprintf_chk, __fgets_unlocked_chk, __fgets_chk): Likewise.
358 lines
12 KiB
C
358 lines
12 KiB
C
/* Copyright (C) 1991,1992,1993,1995-2006,2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _FEATURES_H
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#define _FEATURES_H 1
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/* These are defined by the user (or the compiler)
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to specify the desired environment:
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__STRICT_ANSI__ ISO Standard C.
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_ISOC99_SOURCE Extensions to ISO C89 from ISO C99.
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_POSIX_SOURCE IEEE Std 1003.1.
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_POSIX_C_SOURCE If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
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if >=199309L, add IEEE Std 1003.1b-1993;
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if >=199506L, add IEEE Std 1003.1c-1995;
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if >=200112L, all of IEEE 1003.1-2004
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_XOPEN_SOURCE Includes POSIX and XPG things. Set to 500 if
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Single Unix conformance is wanted, to 600 for the
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upcoming sixth revision.
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_XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
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_LARGEFILE_SOURCE Some more functions for correct standard I/O.
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_LARGEFILE64_SOURCE Additional functionality from LFS for large files.
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_FILE_OFFSET_BITS=N Select default filesystem interface.
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_BSD_SOURCE ISO C, POSIX, and 4.3BSD things.
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_SVID_SOURCE ISO C, POSIX, and SVID things.
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_ATFILE_SOURCE Additional *at interfaces.
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_GNU_SOURCE All of the above, plus GNU extensions.
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_REENTRANT Select additionally reentrant object.
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_THREAD_SAFE Same as _REENTRANT, often used by other systems.
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_FORTIFY_SOURCE If set to numeric value > 0 additional security
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measures are defined, according to level.
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The `-ansi' switch to the GNU C compiler defines __STRICT_ANSI__.
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If none of these are defined, the default is to have _SVID_SOURCE,
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_BSD_SOURCE, and _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
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200112L. If more than one of these are defined, they accumulate.
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For example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE
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together give you ISO C, 1003.1, and 1003.2, but nothing else.
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These are defined by this file and are used by the
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header files to decide what to declare or define:
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__USE_ISOC99 Define ISO C99 things.
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__USE_ISOC95 Define ISO C90 AMD1 (C95) things.
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__USE_POSIX Define IEEE Std 1003.1 things.
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__USE_POSIX2 Define IEEE Std 1003.2 things.
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__USE_POSIX199309 Define IEEE Std 1003.1, and .1b things.
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__USE_POSIX199506 Define IEEE Std 1003.1, .1b, .1c and .1i things.
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__USE_XOPEN Define XPG things.
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__USE_XOPEN_EXTENDED Define X/Open Unix things.
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__USE_UNIX98 Define Single Unix V2 things.
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__USE_XOPEN2K Define XPG6 things.
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__USE_LARGEFILE Define correct standard I/O things.
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__USE_LARGEFILE64 Define LFS things with separate names.
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__USE_FILE_OFFSET64 Define 64bit interface as default.
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__USE_BSD Define 4.3BSD things.
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__USE_SVID Define SVID things.
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__USE_MISC Define things common to BSD and System V Unix.
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__USE_ATFILE Define *at interfaces and AT_* constants for them.
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__USE_GNU Define GNU extensions.
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__USE_REENTRANT Define reentrant/thread-safe *_r functions.
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__USE_FORTIFY_LEVEL Additional security measures used, according to level.
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__FAVOR_BSD Favor 4.3BSD things in cases of conflict.
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The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
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defined by this file unconditionally. `__GNU_LIBRARY__' is provided
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only for compatibility. All new code should use the other symbols
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to test for features.
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All macros listed above as possibly being defined by this file are
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explicitly undefined if they are not explicitly defined.
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Feature-test macros that are not defined by the user or compiler
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but are implied by the other feature-test macros defined (or by the
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lack of any definitions) are defined by the file. */
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/* Undefine everything, so we get a clean slate. */
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#undef __USE_ISOC99
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#undef __USE_ISOC95
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#undef __USE_POSIX
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#undef __USE_POSIX2
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#undef __USE_POSIX199309
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#undef __USE_POSIX199506
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#undef __USE_XOPEN
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#undef __USE_XOPEN_EXTENDED
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#undef __USE_UNIX98
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#undef __USE_XOPEN2K
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#undef __USE_LARGEFILE
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#undef __USE_LARGEFILE64
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#undef __USE_FILE_OFFSET64
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#undef __USE_BSD
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#undef __USE_SVID
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#undef __USE_MISC
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#undef __USE_ATFILE
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#undef __USE_GNU
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#undef __USE_REENTRANT
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#undef __USE_FORTIFY_LEVEL
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#undef __FAVOR_BSD
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#undef __KERNEL_STRICT_NAMES
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/* Suppress kernel-name space pollution unless user expressedly asks
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for it. */
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#ifndef _LOOSE_KERNEL_NAMES
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# define __KERNEL_STRICT_NAMES
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#endif
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/* Always use ISO C things. */
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#define __USE_ANSI 1
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/* Convenience macros to test the versions of glibc and gcc.
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Use them like this:
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#if __GNUC_PREREQ (2,8)
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... code requiring gcc 2.8 or later ...
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#endif
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Note - they won't work for gcc1 or glibc1, since the _MINOR macros
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were not defined then. */
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#if defined __GNUC__ && defined __GNUC_MINOR__
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# define __GNUC_PREREQ(maj, min) \
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((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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#else
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# define __GNUC_PREREQ(maj, min) 0
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#endif
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/* If _BSD_SOURCE was defined by the user, favor BSD over POSIX. */
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#if defined _BSD_SOURCE && \
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!(defined _POSIX_SOURCE || defined _POSIX_C_SOURCE || \
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defined _XOPEN_SOURCE || defined _XOPEN_SOURCE_EXTENDED || \
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defined _GNU_SOURCE || defined _SVID_SOURCE)
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# define __FAVOR_BSD 1
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#endif
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/* If _GNU_SOURCE was defined by the user, turn on all the other features. */
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#ifdef _GNU_SOURCE
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# undef _ISOC99_SOURCE
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# define _ISOC99_SOURCE 1
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# undef _POSIX_SOURCE
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# define _POSIX_SOURCE 1
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# undef _POSIX_C_SOURCE
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# define _POSIX_C_SOURCE 200112L
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# undef _XOPEN_SOURCE
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# define _XOPEN_SOURCE 600
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# undef _XOPEN_SOURCE_EXTENDED
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# define _XOPEN_SOURCE_EXTENDED 1
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# undef _LARGEFILE64_SOURCE
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# define _LARGEFILE64_SOURCE 1
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# undef _BSD_SOURCE
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# define _BSD_SOURCE 1
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# undef _SVID_SOURCE
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# define _SVID_SOURCE 1
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# undef _ATFILE_SOURCE
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# define _ATFILE_SOURCE 1
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#endif
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/* If nothing (other than _GNU_SOURCE) is defined,
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define _BSD_SOURCE and _SVID_SOURCE. */
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#if (!defined __STRICT_ANSI__ && !defined _ISOC99_SOURCE && \
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!defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE && \
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!defined _XOPEN_SOURCE && !defined _XOPEN_SOURCE_EXTENDED && \
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!defined _BSD_SOURCE && !defined _SVID_SOURCE)
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# define _BSD_SOURCE 1
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# define _SVID_SOURCE 1
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#endif
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/* This is to enable the ISO C99 extension. Also recognize the old macro
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which was used prior to the standard acceptance. This macro will
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eventually go away and the features enabled by default once the ISO C99
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standard is widely adopted. */
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#if (defined _ISOC99_SOURCE || defined _ISOC9X_SOURCE \
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|| (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L))
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# define __USE_ISOC99 1
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#endif
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/* This is to enable the ISO C90 Amendment 1:1995 extension. */
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#if (defined _ISOC99_SOURCE || defined _ISOC9X_SOURCE \
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|| (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199409L))
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# define __USE_ISOC95 1
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#endif
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/* If none of the ANSI/POSIX macros are defined, use POSIX.1 and POSIX.2
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(and IEEE Std 1003.1b-1993 unless _XOPEN_SOURCE is defined). */
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#if ((!defined __STRICT_ANSI__ || (_XOPEN_SOURCE - 0) >= 500) && \
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!defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE)
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# define _POSIX_SOURCE 1
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# if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 500
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# define _POSIX_C_SOURCE 2
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# elif defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 600
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# define _POSIX_C_SOURCE 199506L
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# else
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# define _POSIX_C_SOURCE 200112L
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# endif
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#endif
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#if defined _POSIX_SOURCE || _POSIX_C_SOURCE >= 1 || defined _XOPEN_SOURCE
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# define __USE_POSIX 1
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#endif
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#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 2 || defined _XOPEN_SOURCE
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# define __USE_POSIX2 1
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#endif
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#if (_POSIX_C_SOURCE - 0) >= 199309L
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# define __USE_POSIX199309 1
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#endif
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#if (_POSIX_C_SOURCE - 0) >= 199506L
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# define __USE_POSIX199506 1
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#endif
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#if (_POSIX_C_SOURCE - 0) >= 200112L
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# define __USE_XOPEN2K 1
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#endif
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#ifdef _XOPEN_SOURCE
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# define __USE_XOPEN 1
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# if (_XOPEN_SOURCE - 0) >= 500
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# define __USE_XOPEN_EXTENDED 1
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# define __USE_UNIX98 1
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# undef _LARGEFILE_SOURCE
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# define _LARGEFILE_SOURCE 1
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# if (_XOPEN_SOURCE - 0) >= 600
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# define __USE_XOPEN2K 1
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# undef __USE_ISOC99
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# define __USE_ISOC99 1
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# endif
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# else
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# ifdef _XOPEN_SOURCE_EXTENDED
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# define __USE_XOPEN_EXTENDED 1
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# endif
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# endif
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#endif
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#ifdef _LARGEFILE_SOURCE
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# define __USE_LARGEFILE 1
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#endif
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#ifdef _LARGEFILE64_SOURCE
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# define __USE_LARGEFILE64 1
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#endif
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#if defined _FILE_OFFSET_BITS && _FILE_OFFSET_BITS == 64
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# define __USE_FILE_OFFSET64 1
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#endif
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#if defined _BSD_SOURCE || defined _SVID_SOURCE
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# define __USE_MISC 1
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#endif
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#ifdef _BSD_SOURCE
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# define __USE_BSD 1
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#endif
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#ifdef _SVID_SOURCE
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# define __USE_SVID 1
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#endif
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#ifdef _ATFILE_SOURCE
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# define __USE_ATFILE 1
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#endif
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#ifdef _GNU_SOURCE
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# define __USE_GNU 1
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#endif
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#if defined _REENTRANT || defined _THREAD_SAFE
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# define __USE_REENTRANT 1
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#endif
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#if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0 \
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&& __GNUC_PREREQ (4, 1) && defined __OPTIMIZE__ && __OPTIMIZE__ > 0
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# if _FORTIFY_SOURCE > 1
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# define __USE_FORTIFY_LEVEL 2
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# else
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# define __USE_FORTIFY_LEVEL 1
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# endif
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#else
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# define __USE_FORTIFY_LEVEL 0
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#endif
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/* We do support the IEC 559 math functionality, real and complex. */
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#define __STDC_IEC_559__ 1
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#define __STDC_IEC_559_COMPLEX__ 1
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/* wchar_t uses ISO 10646-1 (2nd ed., published 2000-09-15) / Unicode 3.1. */
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#define __STDC_ISO_10646__ 200009L
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/* This macro indicates that the installed library is the GNU C Library.
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For historic reasons the value now is 6 and this will stay from now
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on. The use of this variable is deprecated. Use __GLIBC__ and
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__GLIBC_MINOR__ now (see below) when you want to test for a specific
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GNU C library version and use the values in <gnu/lib-names.h> to get
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the sonames of the shared libraries. */
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#undef __GNU_LIBRARY__
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#define __GNU_LIBRARY__ 6
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/* Major and minor version number of the GNU C library package. Use
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these macros to test for features in specific releases. */
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#define __GLIBC__ 2
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#define __GLIBC_MINOR__ 6
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#define __GLIBC_PREREQ(maj, min) \
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((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min))
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/* Decide whether a compiler supports the long long datatypes. */
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#if defined __GNUC__ \
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|| (defined __PGI && defined __i386__ ) \
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|| (defined __INTEL_COMPILER && (defined __i386__ || defined __ia64__)) \
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|| (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)
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# define __GLIBC_HAVE_LONG_LONG 1
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#endif
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/* This is here only because every header file already includes this one. */
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#ifndef __ASSEMBLER__
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# ifndef _SYS_CDEFS_H
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# include <sys/cdefs.h>
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# endif
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/* If we don't have __REDIRECT, prototypes will be missing if
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__USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */
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# if defined __USE_FILE_OFFSET64 && !defined __REDIRECT
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# define __USE_LARGEFILE 1
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# define __USE_LARGEFILE64 1
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# endif
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#endif /* !ASSEMBLER */
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/* Decide whether we can define 'extern inline' functions in headers. */
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#if __GNUC_PREREQ (2, 7) && defined __OPTIMIZE__ \
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&& !defined __OPTIMIZE_SIZE__ && !defined __NO_INLINE__ \
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&& defined __extern_inline
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# define __USE_EXTERN_INLINES 1
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#endif
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/* This is here only because every header file already includes this one.
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Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
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<gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
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that will always return failure (and set errno to ENOSYS). */
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#include <gnu/stubs.h>
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#endif /* features.h */
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