In the string/string.h and string/strings.h headers, we have a couple
of macros that "tell the caller that we provide correct C++
prototypes" according to the comment; they are used to determine
whether to wrap some prototypes in "extern "C++"" (and provide
multiple overloads of them, and some other magic) when __cplusplus is
defined.
The macros are set to check for sufficiently-recent GCC versions (4.4
and later), but this is not the right check for non-GCC compilers. In
particular, these macros should also be set when using Clang -- if
they are not set, then Clang will be unable to correctly diagnose a
number of subtle bugs that will be errors in GCC compilations.
As per discussion on earlier versions of this patch, rather than
restrict the fix to Clang per se, we assume that all C++ compilers that
claim to fully support C++98 are using a standard-conforming C++
standard library, which seems pretty reasonable. Clang has been
providing an appropriate value of __cplusplus since May 2012.
Not using the result of the GNU strerror_r() is always a mistake.
Moreover this would generate warning if XSI version was expected but GNU
version was used instead (because some random used header defined
_GNU_SOURCE which was Python.h in this case).
* wcsmbs/wchar.h: mbsnrtowcs, open_wmemstream, wcpcpy, wcpncpy,
wcscasecmp, wcsdup, wcsncasecmp, wcsnlen, wcsnrtombs,
wcscasecmp_l, wcsncasecmp_l, wcscoll_l, and wcsxfrm_l.
* sysdeps/mach/hurd/bits/posix_opt.h: Reset value of macros from
200112L to 200809L.
* sysdeps/unix/sysv/linux/bits/posix_opt.h: Likewise.
* posix/getconf.c (vars): Add _SC_THREAD_ROBUST_PRIO_INHERIT and
_SC_THREAD_ROBUST_PRIO_PROTECT entries.
* bits/confname.h: Add _SC_THREAD_ROBUST_PRIO_INHERIT and
_SC_THREAD_ROBUST_PRIO_PROTECT.
* posix/unistd.h: fexecve is in POSIX 2008.
* time/time.h: strftime_l is in POSIX 2008.
* io/sys/stat.h: futimens is in POSIX 2008.
* string/strings.h: strcasecmp_l and strncasecmp_l are in POSIX 2008.
* string/string.h: stpcpy, stpncpy, strndup, strnlen, strsignal,
strcoll_l, strerror_l, and strxfrm_l are in POSIX 2008.
* stdlib/stdlib.h: mkdtemp is in POSIX 2008.
* 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.
returning.
(PTR_DEMANGLE): Real definition now that it's not the same as
PRT_MANGLE anymore.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* string/strerror_l.c: New file.
* string/Makefile (routines): Add strerror_l.
* string/string.h: Declare strerror_l.
* string/Versions: Export strerror_l for GLIBC_2.6.
* nscd/connections.c (nscd_run): Don't define MAXKEYLEN here.
2004-03-22 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/sparc/sparc32/getpagesize.c
(__getpagesize): Avoid warning about writing into read-only memory.
* string/Makefile (routines): Add xpg-strerror.
* string/string.h (strerror_r): If __USE_XOPEN2K but not __USE_GNU,
redirect strerror_r to __xpg_strerror_r.
* string/Versions (libc): Add __xpg_strerror_r@@GLIBC_2.3.4.
* sysdeps/generic/xpg-strerror.c: New file.
* sysdeps/mach/xpg-strerror.c: New file.
More cancellation handling fixups.
* sysdeps/unix/sysv/linux/not-cancel.h: Add waitpid_not_cancel.
* sysdeps/generic/not-cancel.h: Likewise.
* catgets/open_catalog.c: Use not-cancelable syscalls.
* time/Makefile (CFLAGS-getdate.c): Add -fexceptions.
* sysdeps/unix/sysv/linux/llseek.c: Must not be cancelable.
* sysdeps/unix/syscalls.list: Don't mark lseek as cancelable.
* dlfcn/dlfcn.h: Mark dlopen with __THROW again.
* io/fcntl.h: Don't mark posix_fallocate with __THROW.
* libio/fileops.c: Use not-cancelable syscalls for fclose.
* libio/iopopen.c: Use no-cancelable syscalls.
* libio/stdio.h: Mark popen and pclose with __THROW again.
* misc/Makefile (CFLAGS-syslog.c): Add -fexceptions.
* misc/syslog.c: Fix locking and cancellation cleanup handling.
* posix/unistd.h: Mark ttyname and ttyname_r again with __THROW.
* stdio-common/Makefile (CFLAGS-tmpfile.c, CFLAGS-tmpfile64.c,
CFLAGS-tempname.c): Add -fexceptions.
* stdlib/Makefile (CFLAGS-mkstemp.c): Add -fexceptions.
* string/string.h: Mark strerror and strerror_r with _THROW again.
* sysdeps/generic/unwind.inc: New file. Copied from gcc.
* sysdeps/generic/unwind-dw2.c: Update from gcc version. Remove
#ifs since we now need all the code compiled.
* sysdeps/posix/spawni.c: Use close_not_cancel instead of close.
* sysdeps/unix/closedir.c: Use not-cancelable syscalls.
* sysdeps/unix/opendir.c: Likewise.
2001-10-31 Ulrich Drepper <drepper@redhat.com>
* iconvdata/Makefile: Add support for IBM1132, IBM1133, and IBM1162
modules.
* iconvdata/TESTS: Likewise.
* iconvdata/gconv-modules: Likewise.
* iconvdata/ibm1132.c: New file.
* iconvdata/ibm1132.h: New file.
* iconvdata/ibm1133.c: New file.
* iconvdata/ibm1133.h: New file.
* iconvdata/ibm1162.c: New file.
* iconvdata/ibm1162.h: New file.
* iconvdata/testdata/IBM1132: New file.
* iconvdata/testdata/IBM1132..UTF8: New file.
* iconvdata/testdata/IBM1133: New file.
* iconvdata/testdata/IBM1133..UTF8: New file.
* iconvdata/testdata/IBM1162: New file.
* iconvdata/testdata/IBM1162..UTF8: New file.
Patches by Masahide Washizawa <WASHI@jp.ibm.com>.
* string/string.h: Fix typo in comment.
* wcsmbs/wchar.h: Likewise.
2001-10-30 Joseph S. Myers <jsm28@cam.ac.uk>
* manual/getopt.texi (getopt_long, getopt_long_only): Include
const in type of longopts parameter.
* sysdeps/ieee754/dbl-64/mpa.h: Add prototypes for internal functions.
* manual/stdio.texi (Integer Conversions): Corrections to sample printf
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
2001-05-05 Jakub Jelinek <jakub@redhat.com>
* include/features.h (__USE_EXTERN_INLINES): Don't define if
__NO_INLINE__ is defined.
* ctype/ctype.h (tolower, toupper): Change the guard condition to
__USE_EXTERN_INLINES check only.
* stdlib/stdlib.h (strtod, ...): Likewise.
* wcsmbs/wchar.h (mbrlen): Likewise.
* string/string.h: Only include bits/string.h and bits/string2.h
if __NO_INLINE__ is not defined.
2001-02-06 Andreas Jaeger <aj@suse.de>
* include/pthread.h: New file.
* wctype/wctype.h: Move internal interfaces from here to...
* include/wctype.h: ...here.
* wcsmbs/wchar.h: Move __wcslen from here to...
* include/wchar.h: ...here.
* posix/sys/wait.h: Move __wait from here to...
* include/sys/wait.h: ...here.
* string/string.h: Move __ffs and __strerror_r from here to...
* include/string.h: ...here.
* stdlib/stdlib.h: Move __on_exit from here to...
* include/stdlib.h: ...here.
* libio/stdio.h: Move __vsnprintf from here to...
* include/stdio.h: ...here.
2000-05-11 Jan Hubicka <jh@suse.cz>
* misc/sys/cdefs.h: Add support for pure attribute.
* include/string.h: Add __attribute_pure__ to various functions.
* string/string.h: Likewise.
2000-02-24 Ulrich Drepper <drepper@redhat.com>
* conform/conformtest.pl (@headers): Add string.h and strings.h.
* conform/data/string.h-data: New file.
* conform/data/strings.h-data: New file.
* string/string.h [__USE_XOPEN]: Don't declare functions from
<strings.h> here as well.
* misc/sys/cdefs.h: Define __attribute_malloc__ according to
available gcc version.
* string/string.h: Mark strdup, __strdup, and strndup with
__attribute_malloc__.
* stdlib/stdlib.h: Make malloc, calloc, realloc, and valloc with
__attribute_malloc__.
* malloc/malloc.h: Make malloc, calloc, realloc, valloc, pvallc,
__morecore, and __default_morecore with __attribute_malloc__.
Provide default definition for __attribute_malloc__.
* libio/stdio.h: Make tempnam with __attribute_malloc__.
1999-10-04 Ulrich Drepper <drepper@cygnus.com>
* include/string.h: Add __memrchr declaration.
* string/string.h: Moce __memrchr declaration to include/string.h.
1999-10-03 Ulrich Drepper <drepper@cygnus.com>
* string/Makefile (routines): Add memrchr.
* sysdeps/generic/memrchr.c: Don't undef memchr, undef memrchr.
Correct order of tests for matching bytes.
* string/tester.c: Add tests for memrchr.
* sysdeps/i386/i486/bits/string.h (__memrchr): Correct implementation.
Start from the last character and take decrement not increment
into account for correction in return line. Add memrchr alias.
* sysdeps/i386/bits/string.h: Likewise.
1998-07-23 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/glob.c: Fix two problems with GLOB_DOOFFS.
Reported by bwelling@anomaly.munge.com [PR libc/720].
* sysdeps/libm-ieee754/k_standard.c: Return NAN for libm not in
SVID more for gamma(x) with x interger <= 0.
Reported by Stephen L Moshier <moshier@mediaone.net>.
* math/libm-test.c (gamma_test): Add test for gamma(-1) and gamma(0).
Correct test for SVID version of gamma.
* sysdeps/libm-ieee754/w_gamma.c: Use correct matherr call in SVID
emulation mode.
* sysdeps/libm-ieee754/w_gammaf.c: Likewise.
* sysdeps/libm-ieee754/w_gammal.c: Likewise.
* string/string.h: Don't use string function optimization for C++
as long as we use macros.
1998-04-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* iconvdata/Makefile ($(objpfx)iconv-test.out): Use this as target
instead of do-iconv-test.
($(objpfx)gconv-modules): Define rule only if objpfx is not
empty.
1998-04-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* string/string.h: Fix feature test.
1998-04-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* iconvdata/iso646.c (BODY): Don't use character constants that
depend on signedness of char.
