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* signal: Move sys_errlist to a compat symbolAdhemerval Zanella2020-07-071-6/+0
| | | | | | | | | | | | | | | | | | | | The symbol is deprecated by strerror since its usage imposes some issues such as copy relocations. Its internal name is also changed to _sys_errlist_internal to avoid static linking usage. The compat code is also refactored by removing the over enginered errlist-compat.c generation from manual entried and extra comment token in linker script file. It disantangle the code generation from manual and simplify both Linux and Hurd compat code. The definitions from errlist.c are moved to errlist.h and a new test is added to avoid a new errno entry without an associated one in manual. Checked on x86_64-linux-gnu and i686-linux-gnu. I also run a check-abi on all affected platforms. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* improve out-of-bounds checking with GCC 10 attribute access [BZ #25219]Martin Sebor2020-05-041-2/+3
| | | | | | | | Adds the access attribute newly introduced in GCC 10 to the subset of function declarations that are already covered by _FORTIFY_SOURCE and that don't have corresponding GCC built-in equivalents. Reviewed-by: DJ Delorie <dj@redhat.com>
* Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABIPaul E. Murphy2020-04-301-4/+4
| | | | | | | | | | | | | | | Improve the commentary to aid future developers who will stumble upon this novel, yet not always perfect, mechanism to support alternative formats for long double. Likewise, rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI now that development work has settled down. The command used was git grep -l __LONG_DOUBLE_USES_FLOAT128 ':!./ChangeLog*' | \ xargs sed -i 's/__LONG_DOUBLE_USES_FLOAT128/__LDOUBLE_REDIRECTS_TO_FLOAT128_ABI/g' Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* Prepare redirections for IEEE long double on powerpc64leGabriel F. T. Gomes2020-02-171-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | All functions that have a format string, which can consume a long double argument, must have one version for each long double format supported on a platform. On powerpc64le, these functions currently have two versions (i.e.: long double with the same format as double, and long double with IBM Extended Precision format). Support for a third long double format option (i.e. long double with IEEE long double format) is being prepared and all the aforementioned functions now have a third version (not yet exported on the master branch, but the code is in). For these functions to get selected (during build time), references to them in user programs (or dependent libraries) must get redirected to the aforementioned new versions of the functions. This patch installs the header magic required to perform such redirections. Notice, however, that since the redirections only happen when __LONG_DOUBLE_USES_FLOAT128 is set to 1, and no platform (including powerpc64le) currently does it, no redirections actually happen. Redirections and the exporting of the new functions will happen at the same time (when powerpc64le adds ldbl-128ibm-compat to their Implies. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> Reviewed-by: Paul E. Murphy <murphyp@linux.vnet.ibm.com>
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-011-1/+1
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* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
* Use C99-compliant scanf under _GNU_SOURCE with modern compilers.Zack Weinberg2019-01-031-14/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only difference between noncompliant and C99-compliant scanf is that the former accepts the archaic GNU extension '%as' (also %aS and %a[...]) meaning to allocate space for the input string with malloc. This extension conflicts with C99's use of %a as a format _type_ meaning to read a floating-point number; POSIX.1-2008 standardized equivalent functionality using the modifier letter 'm' instead (%ms, %mS, %m[...]). The extension was already disabled in most conformance modes: specifically, any mode that doesn't involve _GNU_SOURCE and _does_ involve either strict conformance to C99 or loose conformance to both C99 and POSIX.1-2001 would get the C99-compliant scanf. With compilers new enough to use -std=gnu11 instead of -std=gnu89, or equivalent, that includes the default mode. With this patch, we now provide C99-compliant scanf in all configurations except when _GNU_SOURCE is defined *and* __STDC_VERSION__ or __cplusplus (whichever is relevant) indicates C89/C++98. This leaves the old scanf available under e.g. -std=c89 -D_GNU_SOURCE, but removes it from e.g. -std=gnu11 -D_GNU_SOURCE (it was already not present under -std=gnu11 without -D_GNU_SOURCE) and from -std=gnu89 without -D_GNU_SOURCE. There needs to be an internal override so we can compile the noncompliant scanf itself. This is the same problem we had when we removed 'gets' from _GNU_SOURCE and it's dealt with the same way: there's a new __GLIBC_USE symbol, DEPRECATED_SCANF, which defaults to off under the appropriate conditions for external code, but can be overridden by individual files within stdio. We also run into problems with PLT bypass for internal uses of sscanf, because libc_hidden_proto uses __REDIRECT and so does the logic in stdio.h for choosing which implementation of scanf to use; __REDIRECT isn't transitive, so include/stdio.h needs to bridge the gap with a macro. As far as I can tell, sscanf is the only function in this family that's internally called by unrelated code. Finally, there are several tests in stdio-common that use the extension. bug21.c is a regression test for a crash; it still exercises the relevant code when changed to use %ms instead of %as. scanf14.c through scanf17.c are more complicated since they are actually testing the subtleties of the extension - under what circumstances is 'a' treated as a modifier letter, etc. I changed all of them to use %ms instead of %as as well, but duplicated scanf14.c and scanf16.c as scanf14a.c and scanf16a.c. These still use %as and are compiled with -std=gnu89 to access the old extension. A bunch of diagnostic overrides and manual workarounds for the old stdio.h behavior become unnecessary. Yay! * include/features.h (__GLIBC_USE_DEPRECATED_SCANF): New __GLIBC_USE parameter. Only use deprecated scanf when __USE_GNU is defined and __STDC_VERSION__ is less than 199901L or __cplusplus is less than 201103L, whichever is relevant for the language being compiled. * libio/stdio.h, libio/bits/stdio-ldbl.h: Decide whether to redirect scanf, fscanf, sscanf, vscanf, vfscanf, and vsscanf to their __isoc99_ variants based only on __GLIBC_USE (DEPRECATED_SCANF). * wcsmbs/wchar.h: wcsmbs/bits/wchar-ldbl.h: Likewise for wscanf, fwscanf, swscanf, vwscanf, vfwscanf, and vswscanf. * libio/iovsscanf.c * libio/fwscanf.c * libio/iovswscanf.c * libio/swscanf.c * libio/vscanf.c * libio/vwscanf.c * libio/wscanf.c * stdio-common/fscanf.c * stdio-common/scanf.c * stdio-common/vfscanf.c * stdio-common/vfwscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-compat.c * sysdeps/ieee754/ldbl-opt/nldbl-fscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-fwscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-iovfscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-scanf.c * sysdeps/ieee754/ldbl-opt/nldbl-sscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-swscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vfscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vfwscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vsscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vswscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-vwscanf.c * sysdeps/ieee754/ldbl-opt/nldbl-wscanf.c: Override __GLIBC_USE_DEPRECATED_SCANF to 1. * stdio-common/sscanf.c: Likewise. Remove ldbl_hidden_def for __sscanf. * stdio-common/isoc99_sscanf.c: Add libc_hidden_def for __isoc99_sscanf. * include/stdio.h: Provide libc_hidden_proto for __isoc99_sscanf, not sscanf. [!__GLIBC_USE (DEPRECATED_SCANF)]: Define sscanf as __isoc99_scanf with a preprocessor macro. * stdio-common/bug21.c, stdio-common/scanf14.c: Use %ms instead of %as, %mS instead of %aS, %m[] instead of %a[]; remove DIAG_IGNORE_NEEDS_COMMENT for -Wformat. * stdio-common/scanf16.c: Likewise. Add __attribute__ ((format (scanf))) to xscanf, xfscanf, xsscanf. * stdio-common/scanf14a.c: New copy of scanf14.c which still uses %as, %aS, %a[]. Remove DIAG_IGNORE_NEEDS_COMMENT for -Wformat. * stdio-common/scanf16a.c: New copy of scanf16.c which still uses %as, %aS, %a[]. Add __attribute__ ((format (scanf))) to xscanf, xfscanf, xsscanf. * stdio-common/scanf15.c, stdio-common/scanf17.c: No need to override feature selection macros or provide definitions of u_char etc. * stdio-common/Makefile (tests): Add scanf14a and scanf16a. (CFLAGS-scanf15.c, CFLAGS-scanf17.c): Remove. (CFLAGS-scanf14a.c, CFLAGS-scanf16a.c): New. Compile these files with -std=gnu89.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2019-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Add renameat2 function [BZ #17662]Florian Weimer2018-07-051-0/+12
| | | | | | | The implementation falls back to renameat if renameat2 is not available in the kernel (or in the kernel headers) and the flags argument is zero. Without kernel support, a non-zero argument returns EINVAL, not ENOSYS. This mirrors what the kernel does for invalid renameat2 flags.
* Don't install libio.h or _G_config.h.Zack Weinberg2018-02-071-44/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We shipped 2.27 with libio.h and _G_config.h still installed but issuing warnings when used. Let's stop installing them early in 2.28 so that we have plenty of time to think of another plan if there are problems. The public stdio.h had a genuine dependency on libio.h for the complete definitions of FILE and cookie_io_functions_t, and a genuine dependency on _G_config.h for the complete definitions of fpos_t and fpos64_t; these are moved to single-type headers. bits/types/struct_FILE.h also provides a handful of accessor and bitflags macros so that code is not duplicated between bits/stdio.h and libio.h. All the other _IO_ and _G_ names used by the public stdio.h can be replaced with either public names or __-names. In order to minimize the risk of breaking our own compatibility code, bits/types/struct_FILE.h preserves the _IO_USE_OLD_IO_FILE mechanism exactly as it was in libio.h, but you have to define _LIBC to use it, or it'll error out. Similarly, _IO_lock_t_defined is preserved exactly, but will error out if used without defining _LIBC. Internally, include/stdio.h continues to include libio.h, and libio.h scrupulously provides every _IO_* and _G_* name that it always did, perhaps now defined in terms of the public names. This is how this patch avoids touching dozens of files throughout glibc and becoming entangled with the _IO_MTSAFE_IO mess. The remaining patches in this series eliminate most of the _G_ names. Tested on x86_64-linux; in addition to the test suite, I installed the library in a sysroot and verified that a simple program that uses stdio.h could be compiled against the installed library, and I also verified that installed stripped libraries are unchanged. * libio/bits/types/__fpos_t.h, libio/bits/types/__fpos64_t.h: New single-type headers split from _G_config.h. * libio/bits/types/cookie_io_functions_t.h * libio/bits/types/struct_FILE.h New single-type headers split from libio.h. * libio/Makefile: Install the above new headers. Don't install libio.h, _G_config.h, bits/libio.h, bits/_G_config.h, or bits/libio-ldbl.h. * libio/_G_config.h, libio/libio.h: Delete file. * libio/bits/libio.h: Remove improper-inclusion guard. Include stdio.h and don't repeat anything that it does. Define _IO_fpos_t as __fpos_t, _IO_fpos64_t as __fpos64_t, _IO_BUFSIZ as BUFSIZ, _IO_va_list as __gnuc_va_list, __io_read_fn as cookie_read_function_t, __io_write_fn as cookie_write_function_t, __io_seek_fn as cookie_seek_function_t, __io_close_fn as cookie_close_function_t, and _IO_cookie_io_functions_t as cookie_io_functions_t. Define _STDIO_USES_IOSTREAM, __HAVE_COLUMN, and _IO_file_flags here, in the "compatibility defines" section. Remove an #if 0 block. Use the "body" macros from bits/types/struct_FILE.h to define _IO_getc_unlocked, _IO_putc_unlocked, _IO_feof_unlocked, and _IO_ferror_unlocked. Move prototypes of __uflow and __overflow... * libio/stdio.h: ...here. Don't include bits/libio.h. Don't define _STDIO_USES_IOSTREAM. Get __gnuc_va_list directly from stdarg.h. Include bits/types/__fpos_t.h, bits/types/__fpos64_t.h, bits/types/struct_FILE.h, and, when __USE_GNU, bits/types/cookie_io_functions_t.h. Use __gnuc_va_list, not _G_va_list; __fpos_t, not _G_fpos_t; __fpos64_t, not _G_fpos64_t; FILE, not struct _IO_FILE; cookie_io_functions_t, not _IO_cookie_io_functions_t; __ssize_t, not _IO_ssize_t. Unconditionally define BUFSIZ as 8192 and EOF as (-1). * libio/bits/stdio.h: Add multiple-include guard. Use the "body" macros from bits/types/struct_FILE.h instead of _IO_* macros from libio.h; use __gnuc_va_list instead of va_list and __ssize_t instead of _IO_ssize_t. * libio/bits/stdio2.h: Similarly. * libio/iolibio.h: Add multiple-include guard. Include bits/libio.h after stdio.h. * libio/libioP.h: Add multiple-include guard. Include stdio.h and bits/libio.h before iolibio.h. * include/bits/types/__fpos_t.h, include/bits/types/__fpos64_t.h * include/bits/types/cookie_io_functions_t.h * include/bits/types/struct_FILE.h: New wrappers. * bits/_G_config.h, sysdeps/unix/sysv/linux/_G_config.h: Get definitions of _G_fpos_t and _G_fpos64_t from bits/types/__fpos_t.h and bits/types/__fpos64_t.h respectively. Remove improper-inclusion guards. * conform/data/stdio.h-data: Update expectations of va_list. * scripts/check-installed-headers.sh: Remove special case for libio.h and _G_config.h.
* Remove getc and putc macros from the public stdio.h.Zack Weinberg2018-02-051-8/+0
| | | | | | | | | | | | | | | | | | | | | | | The getc and putc macros in the public stdio.h expand to call _IO_getc and _IO_putc respectively. As _IO_getc, fgetc, and getc are all aliases for the same function, and _IO_putc, fputc, and putc are also all aliases for the same function, the macros are pointless. The C standard does not require getc and putc to be macros, so let's just not have macros. All four symbols are exported from libc.so at the same, ancient symbol version, so there should be no risks for binary compatibility. Similarly, the getchar and putchar inlines in bits/stdio.h forward to getc and putc instead of their _IO_ aliases. As a change from longstanding historical practice, this does seem like it might break _something_, so there is a note in NEWS, which is also a convenient place to advise people that if they thought getc and putc had reduced per-character overhead they should consider using getc_unlocked and putc_unlocked instead. (These are also not macros, but when optimizing, they are inlines.) * libio/stdio.h: Don't define getc or putc as macros. * libio/bits/stdio.h (getchar, putchar): Use getc and putc, not _IO_getc and _IO_putc.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2018-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Deprecate external use of libio.h and _G_config.h.Zack Weinberg2017-12-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libio.h was originally the header for a set of supported GNU extensions, but they have not been maintained as such in many years, they are now standing in the way of improvements to stdio, and we don't think there are any remaining external users. _G_config.h was never intended for public use, but predates the bits convention. Move both of these headers into the bits directory and provide stubs at top level which issue deprecation warnings. The contents of (bits/)libio.h and (bits/)_G_config.h are still exposed to external software via stdio.h; changing that requires more complex surgery than I have time to attempt right now. * libio/libio.h, libio/_G_config.h: New stub headers which issue a deprecation warning and then include <bits/libio.h>, <bits/_G_config.h> respectively. * libio/libio.h: Rename the original version of this file to libio/bits/libio.h. Error out if not included by stdio.h or the stub libio.h. * include/libio.h: Move to include/bits. Forward to libio/bits/libio.h. * sysdeps/generic/_G_config.h: Move to top-level bits/. Error out if not included by bits/libio.h or the stub _G_config.h. * sysdeps/unix/sysv/linux/_G_config.h: Move to sysdeps/unix/sysv/linux/bits. Error out if not included by bits/libio.h or the stub _G_config.h. * libio/stdio.h: Include bits/libio.h, not libio.h. * libio/Makefile: Install bits/libio.h and bits/_G_config.h as well as libio.h and _G_config.h. * csu/init.c, libio/fmemopen.c, libio/iolibio.h, libio/oldfmemopen.c * libio/strfile.h, stdio-common/vfscanf.c * sysdeps/pthread/flockfile.c, sysdeps/pthread/funlockfile.c Include stdio.h, not _G_config.h nor libio.h. * libio/iofgetpos.c: Also rename fgetpos64 out of the way. * libio/iofsetpos.c: Also rename fsetpos64 out of the way. * scripts/check-installed-headers.sh: Skip libio.h and _G_config.h.
* Remove __need macros from stdio.h and wchar.h.Zack Weinberg2017-06-081-38/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | wint_t is a little finicky because it might be defined by stddef.h, which belongs to the compiler. In addition to the _types_, a bunch of other declarations shared between wctype.h and wchar.h are factored out to their own header. * libio/bits/types/FILE.h, libio/bits/types/__FILE.h * wcsmbs/bits/types/mbstate_t.h, wcsmbs/bits/types/__mbstate_t.h * wcsmbs/bits/types/wint_t.h: New single-type definition files. * wctype/bits/wctype-wchar.h: New file holding declarations shared between wctype.h and wchar.h. * libio/Makefile, wcsmbs/Makefile, wctype/Makefile: Install them. * include/bits/types/FILE.h, include/bits/types/__FILE.h * include/bits/types/mbstate_t.h, include/bits/types/__mbstate_t.h * include/bits/types/wint_t.h, include/bits/wcsmbs-wchar.h: New wrappers. * include/stdio.h, include/wchar.h, include/wctype.h: No need to handle __need macros. * grp/grp.h, gshadow/gshadow.h, hurd/hurd.h, iconv/gconv.h * libio/stdio.h, mach/mach.h, misc/mntent.h, pwd/pwd.h * shadow/shadow.h, stdio-common/printf.h, wcsmbs/uchar.h * wcsmbs/wchar.h, wctype/wctype.h * sysdeps/generic/_G_config.h, sysdeps/unix/sysv/linux/_G_config.h Use the new files instead of __need macros.
* getopt: eliminate __need_getopt by splitting up getopt.h.Zack Weinberg2017-04-071-6/+4
| | | | | | | | | | | | | | | | | | | | | | __need_getopt is misnamed; what it really means is "we want only the getopt features specified in POSIX, not the GNU extensions". Because this code is shared with gnulib, it winds up being cleanest to split getopt.h into *four* headers. getopt_core.h and getopt_ext.h will be shared with gnulib, getopt_posix.h will be just for glibc, and each project will have its own copy of getopt.h. * posix/bits/getopt_core.h, posix/bits/getopt_ext.h: New files, intended to be shared with gnulib. * posix/bits/getopt_posix.h: New file, not intended to be shared with gnulib. * posix/getopt.h: Now just includes features.h, bits/getopt_core.h, and bits/getopt_ext.h. Will no longer be shared with gnulib. * include/bits/getopt_core.h, include/bits/getopt_ext.h * include/bits/getopt_posix.h: New wrappers. * posix/Makefile: Install new headers. * posix/unistd.h, libio/stdio.h: Include bits/getopt_posix.h instead of getopt.h.
* Remove C++ namespace handling from glibc headers.Joseph Myers2017-03-161-45/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glibc headers include some code (not particularly consistent or systematic) to put various declarations in C++ namespaces std and __c99, if _GLIBCPP_USE_NAMESPACES is defined. As noted in <https://gcc.gnu.org/ml/libstdc++/2017-03/msg00025.html>, this macro was removed from libstdc++ in 2000. I don't expect compilation with such old versions of libstdc++ to work with current glibc headers anyway (whereas old *binaries* are expected to stay working with current glibc); this patch (which should be a no-op with any libstdc++ version postdating that removal) removes all this code from the glibc headers. The begin-end-check.pl test, whose comments say it is about checking these namespace macro calls, is also removed. The code in that test would have covered __BEGIN_DECLS / __END_DECLS as well, but if those weren't properly matched it would show up with the check-installed-headers-cxx tests, so I don't think there is an actual use for keeping begin-end-check.pl with the namespace code removed. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * misc/sys/cdefs.h (__BEGIN_NAMESPACE_STD): Remove macro. (__END_NAMESPACE_STD): Likewise. (__USING_NAMESPACE_STD): Likewise. (__BEGIN_NAMESPACE_C99): Likewise. (__END_NAMESPACE_C99): Likewise. (__USING_NAMESPACE_C99): Likewise. * math/math.h (_Mdouble_BEGIN_NAMESPACE): Do not define and undefine macro. (_Mdouble_END_NAMESPACE): Likewise. * ctype/ctype.h: Do not handle C++ namespaces. * libio/bits/stdio-ldbl.h: Likewise. * libio/stdio.h: Likewise. * locale/locale.h: Likewise. * math/bits/mathcalls.h: Likewise. * setjmp/setjmp.h: Likewise. * signal/signal.h: Likewise. * stdlib/bits/stdlib-float.h: Likewise. * stdlib/bits/stdlib-ldbl.h: Likewise. * stdlib/stdlib.h: Likewise. * string/string.h: Likewise. * sysdeps/x86/fpu/bits/mathinline.h: Likewise. * time/bits/types/clock_t.h: Likewise. * time/bits/types/struct_tm.h: Likewise. * time/bits/types/time_t.h: Likewise. * time/time.h: Likewise. * wcsmbs/bits/wchar-ldbl.h: Likewise. * wcsmbs/uchar.h: Likewise. * wcsmbs/wchar.h: Likewise. [_GLIBCPP_USE_NAMESPACES] (wint_t): Remove conditional definition. * wctype/wctype.h: Do not handle C++ namespaces. * scripts/begin-end-check.pl: Remove. * Makefile (installed-headers): Likewise. (tests-special): Do not add $(objpfx)begin-end-check.out. ($(objpfx)begin-end-check.out): Remove.
* Clean up conditionals for declaration of gets.Zack Weinberg2017-02-251-8/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gets has the dubious honor of being the only C89 library feature that has been completely removed from the current C and C++ standards. glibc follows suit by not declaring it in _GNU_SOURCE mode either, but it remains present in older compatibility modes. Internally, two test cases need to see stdio.h make the declaration, but all our internal code is of course compiled under _GNU_SOURCE. This is currently kludged by duplicating the gets declaration, fortify wrapper and all, in include/stdio.h. Also, the conditional in the public headers for deciding when to declare gets is complicated and repeated in two places. This patch adds a new macro to features.h that encapsulates the complicated rule for when to declare gets. stdio.h and bits/stdio2.h then simply test __GLIBC_USE (DEPRECATED_GETS), and instead of having a duplicate gets declaration in include/stdio.h, debug/tst-chk1.c and stdio-common/tst-gets.c can force gets to be declared. * include/features.h (__GLIBC_USE_DEPRECATED_GETS): New macro. * libio/stdio.h, libio/bits/stdio2.h: Condition gets on __GLIBC_USE (DEPRECATED_GETS). Update comments to indicate gets was removed from C++ in C++14. * include/stdio.h: Remove redundant declaration of gets. * debug/tst-chk1.c, stdio-common/tst-gets.c: Force gets to be declared, since we are testing it. * stdio-common/Makefile (tst-gets.c): Compile with -Wno-deprecated-declarations. * debug/Makefile (tst-chk1.c, tst-chk2.c, tst-chk3.c, tst-chk4.cc) (tst-chk5.cc, tst-chk6.cc, tst-lfschk1.c, tst-lfschk2.c) (tst-lfschk3.c, tst-lfschk4.cc, tst-lfschk5.cc, tst-lfschk6.cc): Compile with -Wno-deprecated-declarations.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2017-01-011-1/+1
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* Support __STDC_WANT_LIB_EXT2__ feature test macro.Joseph Myers2016-08-021-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements support for the __STDC_WANT_LIB_EXT2__ feature test macro from ISO/IEC TR 24731-2:2010, thereby implementing one possible approach for supporting ISO C feature test macros. Recall that, as described in <https://sourceware.org/ml/libc-alpha/2016-05/msg00486.html>, these macros work based on the definition when affected headers are included, so cannot be handled once when the first system header is included because that might not be one of the headers the particular macro in question affects. <https://sourceware.org/ml/libc-alpha/2016-05/msg00680.html> expresses views on possible approaches for implementation and <https://sourceware.org/ml/libc-alpha/2016-06/msg00039.html> follows up on that. This patch arranges things so that the relevant condition is __GLIBC_USE (LIB_EXT2), following one of the suggestions given. Headers using these macros include <bits/libc-header-start.h>, which in turn includes <features.h>. Headers must define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION before including <bits/libc-header-start.h>, to discourage inclusion outside glibc as requested. __USE_GNU conditions on affected functions are changed to __GLIBC_USE (LIB_EXT2), while it's added as an additional alternative on the conditions for functions already enabled for some POSIX versions. It would be possible to convert existing __USE_* conditionals to __GLIBC_USE (with the relevant __GLIBC_USE_* being defined in <features.h> where __USE_* are presently defined), and so make them typo-proof (given -Wundef -Werror in glibc builds) because __GLIBC_USE is used with #if not #ifdef / #if defined. No attempt is made to enforce the rule about diagnosing different definitions of __STDC_WANT_LIB_EXT2__ when affected headers are included; such a diagnostic is incompatible with multiple-include guards on the affected headers, unless compiler extensions are added to support it. As previously noted, glibc does not implement all features from TR 24731-2:2010: the functions aswprintf vaswprintf getwdelim getwline are not in glibc, although they would be appropriate to add if someone wished to do so. But I think it makes sense to support the feature test macro if *any* of the controlled features are present in glibc. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * bits/libc-header-start.h: New file. * Makefile (headers): Add bits/libc-header-start.h. * include/features.h (__STDC_WANT_LIB_EXT2__): Document. (__GLIBC_USE): New macro. * libio/stdio.h: Define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION and include <bits/libc-header-start.h> instead of including <features.h>. (fmemopen): Declare also if [__GLIBC_USE (LIB_EXT2)]. (open_memstream): Likewise. (vasprintf): Declare if [__GLIBC_USE (LIB_EXT2)], not [__USE_GNU]. (__asprintf): Likewise. (asprintf): Likewise. (__getdelim): Declare also if [__GLIBC_USE (LIB_EXT2)]. (getdelim): Likewise. (getline): Likewise. * string/string.h: Define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION and include <bits/libc-header-start.h> instead of including <features.h>. (strdup): Declare also if [__GLIBC_USE (LIB_EXT2)] (strndup): Likewise. * wcsmbs/wchar.h: Define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION and include <bits/libc-header-start.h> instead of including <features.h>. (open_wmemstream): Declare also if [__GLIBC_USE (LIB_EXT2)]. * manual/creature.texi (__STDC_WANT_LIB_EXT2__): Document macro.
* Fix stdio.h namespace for pre-threads POSIX (bug 20014).Joseph Myers2016-04-281-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | stdio.h declares flockfile, ftrylockfile, funlockfile, getc_unlocked, getchar_unlocked, putc_unlocked and putchar_unlocked if __USE_POSIX, with comments "These are defined in POSIX.1:1996.". But __USE_POSIX is actually POSIX.1:1990, and these functions should not be declared for 1990 / 1992 / 1993 POSIX, XPG3 or XPG4. This patch fixes stdio.h to use __USE_POSIX199506 instead for those conditionals, as that is the correct conditional for the version of POSIX that introduced threads, and with threads those functions. Tested for x86_64 and x86 (testsuite, and that installed shared libraries are unchanged by the patch). [BZ #20014] * libio/stdio.h (getc_unlocked): Declare if [__USE_POSIX199506], not [__USE_POSIX]. (getchar_unlocked): Likewise. (putc_unlocked): Likewise. (putchar_unlocked): Likewise. (flockfile): Likewise. (ftrylockfile): Likewise. (funlockfile): Likewise. * conform/Makefile (test-xfail-XPG3/stdio.h/conform): Remove variable. (test-xfail-XPG4/stdio.h/conform): Likewise.
* Also define off_t in stdio.h for UNIX98.Joseph Myers2016-04-281-1/+1
| | | | | | | | | | | | | | | | | | Similar to my previous fix for XOPEN2K <https://sourceware.org/ml/libc-alpha/2016-04/msg00631.html>, now that bugs in the conformtest expectations for stdio.h for UNIX98 have been corrected, that case too fails because fseeko and ftello are now correctly expected, but off_t is not defined. As in that fix, it seems appropriate to define off_t in stdio.h for this standard as well, and this patch does so. Tested for x86_64 and x86 (testsuite, and that installed shared libraries are unchanged by the patch). * libio/stdio.h (off_t): Also define if [__USE_UNIX98]. [__USE_LARGEFILE64] (off64_t): Likewise. * conform/Makefile (test-xfail-UNIX98/stdio.h/conform): Remove variable.
* Define off_t in stdio.h for XOPEN2K.Joseph Myers2016-04-261-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | The header conformance test for stdio.h for XOPEN2K fails because the header does not define the off_t type, used in the expected declarations for fseeko and ftello. The absence of this type is not actually strictly a bug (hence no bug report being filed in Bugzilla), since POSIX didn't require the type to be declared in this header until the 2008 edition. However, the glibc convention in such cases - where the type falls under the general *_t POSIX reservation, and so it's OK to define it for all POSIX versions - is to make the headers self-contained in this regard even for the older POSIX versions not requiring the type to be defined despite including other declarations depending on the type. Thus, this patch adjusts the condition in the header and removes the XFAIL (rather than adapting the expectation to work when the functions are declared using __off_t without off_t being defined). Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * libio/stdio.h (off_t): Define if [__USE_XOPEN2K], not [__USE_XOPEN2K8]. [__USE_LARGEFILE64] (off64_t): Likewise. * conform/Makefile (test-xfail-XOPEN2K/stdio.h/conform): Remove variable.
* Fix stdio.h cuserid namespace (bug 19989).Joseph Myers2016-04-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | stdio.h declares cuserid if __USE_XOPEN. But this was removed in the 2001 edition of POSIX. The #endif comment "Use X/Open, but not issue 6." reflects the correct logic, but does not correspond to the #ifdef. The use of a correct libc-hacker. The online archives for libc-hacker in August 2000 are broken, but the messages can be found in the qmail archives in /sourceware1/qmail/lists-sourceware/libc-hacker/archive/26 if you have shell access to sourceware. The issue showed up in August 2000 because of a warning about a non-prototype definition in sysdeps/posix/cuserid.c when there was no previous prototype declaration. Since we've now eliminated non-prototype function definitions, that issue does not apply. The other points from that discussion were about whether it should be included in _GNU_SOURCE; whether _GNU_SOURCE should include "everything"; whether deprecated interfaces such as this should be excluded from it; and whether, even given exclusion of deprecated interfaces, it should apply for deprecations in a version of POSIX that at that time had not been released. This patch follows the more conservative approach to a fix of keeping the interface in _GNU_SOURCE. That matches how L_cuserid is handled. I think there is a strong case for eliminating this interface from _GNU_SOURCE (but this may not automatically be the case for every interface removed in newer POSIX versions), but then L_cuserid should also be removed from _GNU_SOURCE (in stdio-common/stdio_lim.h.in) at the same time. Tested for x86_64 and x86 (testsuite, and that installed shared libraries are unchanged by the patch). [BZ #19989] * libio/stdio.h (cuserid): Do not declare if [__USE_XOPEN2K && !__USE_GNU]. * conform/Makefile (test-xfail-XOPEN2K8/stdio.h/conform): Remove variable.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2016-01-041-1/+1
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* Update copyright dates with scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
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* Revert to defining __extern_inline only for gcc-4.3+ (BZ #17266)Siddhesh Poyarekar2014-09-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The check for only __GNUC_STDC_INLINE__ and __GNUC_GNU_INLINE__ may not be sufficient since those flags were added during initial support for C99 inlining semantics. There is also a problem with always defining __extern_inline and __extern_always_inline, since it enables inline wrapper functions even when GNU inlining semantics are not guaranteed. This, along with the possibility of such wrappers using redirection (btowc for example) could result in compiler generating an infinitely recusrive call to the function. In fact it was such a recursion that led to this code being written the way it was; see: https://bugzilla.redhat.com/show_bug.cgi?id=186410 The initial change was to fix bugs 14530 and 13741, but they can be resolved by checking if __fortify_function and/or __extern_always_inline are defined, as it has been done in this patch. In addition, I have audited uses of __extern_always_inline to make sure that none of the uses result in compilation errors. There is however a regression in this patch for llvm, since it reverts the llvm expectation that __GNUC_STDC_INLINE__ or __GNUC_GNU_INLINE__ definition imply proper extern inline semantics. 2014-09-16 Siddhesh Poyarekar <siddhesh@redhat.com> Jakub Jelinek <jakub@redhat.com> [BZ #17266] * libio/stdio.h: Check definition of __fortify_function instead of __extern_always_inline to include bits/stdio2.h. * math/bits/math-finite.h [__USE_XOPEN || __USE_ISOC99]: Also check if __extern_always_inline is defined. [__USE_MISC || __USE_XOPEN]: Likewise. [__USE_ISOC99] Likewise. * misc/sys/cdefs.h (__fortify_function): Define only if __extern_always_inline is defined. [!__cplusplus || __GNUC_PREREQ (4,3)]: Revert to defining __extern_always_inline and __extern_inline only for g++-4.3 and newer or a compatible gcc.
* Complete _BSD_SOURCE / _SVID_source followup cleanup.Joseph Myers2014-02-211-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch completes the headers cleanup consequent on removal of _BSD_SOURCE and _SVID_SOURCE (apart from any subsequent deprecations): * #endif conditionals that referred to BSD or SVID are updated. * Redundant __USE_* tests in cases involving __USE_MISC are removed. This includes cases such as __USE_MISC || __USE_ISOC99, where __USE_MISC is redundant (because __USE_MISC is only ever defined in the default / _DEFAULT_SOURCE / _GNU_SOURCE case, when __USE_ISOC99 is also defined; the same applies to the non-XSI-extended POSIX versions), and cases involving __USE_GNU, where __USE_GNU is redundant (because if __USE_GNU is defined, so are the other __USE_* macros). There may well be other cases of __USE_FOO || __USE_BAR tests that could be simplified because one macro implies the other; this patch only addresses cases involving __USE_MISC. Tested x86_64. * bits/fcntl.h [__USE_MISC]: Remove redundant conditionals. * bits/sigaction.h [__USE_MISC]: Likewise. * bits/waitstatus.h: Update #endif comments. * ctype/ctype.h: Likewise. * dirent/dirent.h: Likewise. [__USE_MISC]: Remove redundant conditionals. * grp/grp.h: Update #endif comments. [__USE_GNU]: Remove redundant conditionals. [__USE_MISC]: Likewise. * inet/netinet/in.h [__USE_GNU]: Likewise. * io/sys/stat.h [__USE_MISC]: Likewise. * libio/bits/stdio-ldbl.h [__USE_MISC]: Likewise. * libio/bits/stdio.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * libio/bits/stdio2.h [__USE_MISC]: Likewise. * libio/stdio.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * math/bits/math-finite.h [__USE_MISC]: Likewise. * math/bits/mathcalls.h [__USE_MISC]: Likewise. * math/math.h: Update #else and #endif comments. [__USE_MISC]: Remove redundant conditionals. * misc/sys/uio.h: Update #endif comments. * posix/bits/unistd.h [__USE_MISC]: Remove redundant conditionals. * posix/glob.h [__USE_MISC]: Likewise. * posix/sys/types.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * posix/sys/wait.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * posix/unistd.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * pwd/pwd.h [__USE_GNU]: Likewise. [__USE_MISC]: Likewise. * resolv/netdb.h [__USE_GNU]: Likewise. * signal/signal.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * stdlib/stdlib.h: Update #else and #endif comments. [__USE_MISC]: Remove redundant conditionals. [__USE_GNU]: Likewise. * string/bits/string2.h [__USE_MISC]: Likewise. * string/string.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h [__USE_MISC]: Likewise. * sysdeps/mach/hurd/bits/fcntl.h [__USE_MISC]: Likewise. * sysdeps/mach/hurd/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * sysdeps/unix/sysv/linux/bits/in.h [__USE_GNU]: Likewise. * sysdeps/unix/sysv/linux/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/bits/socket.h [__USE_GNU]: Likewise. * sysdeps/unix/sysv/linux/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/m68k/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/mips/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/s390/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/s390/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/x86/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/x86/bits/string.h: Update #endif comments. * sysdeps/x86/fpu/bits/mathinline.h [__USE_MISC]: Remove redundant conditionals. * time/sys/time.h: Update #endif comments. * time/time.h: Likewise. [__USE_MISC]: Remove redundant conditionals.
* Clean up trivially redundant __USE_MISC conditionals.Joseph Myers2014-02-131-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleans up cases of __USE_MISC that are trivially redundant after the recent substitution of __USE_MISC for __USE_BSD and __USE_SVID: either in constructs such as "defined __USE_MISC || defined __USE_MISC", or else (in the bits/mman.h case) a conditional on __USE_MISC nested inside another __USE_MISC conditional. (The cleanups remaining after this patch are still quite large, but it seems a reasonable piece to separate out.) Tested x86_64. * bits/mman.h [__USE_MISC]: Remove redundant conditionals. * ctype/ctype.h [__USE_MISC]: Likewise. * dirent/dirent.h [__USE_MISC]: Likewise. * grp/grp.h [__USE_MISC]: Likewise. * io/fcntl.h [__USE_MISC]: Likewise. * io/sys/stat.h [__USE_MISC]: Likewise. * libio/stdio.h [__USE_MISC]: Likewise. * posix/unistd.h [__USE_MISC]: Likewise. * pwd/pwd.h [__USE_MISC]: Likewise. * stdlib.h [__USE_MISC]: Likewise. * string/bits/string2.h [__USE_MISC]: Likewise. * string/string.h [__USE_MISC]: Likewise. * time/time.h [__USE_MISC]: Likewise.
* Combine __USE_BSD and __USE_SVID into __USE_MISC.Joseph Myers2014-02-121-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleans up following the obsoletion of _BSD_SOURCE and _SVID_SOURCE by combining __USE_BSD and __USE_SVID into __USE_MISC. The only non-mechanical part of this patch is the changes to features.h; everything else is simple substitution of __USE_MISC for the old macros. Thus, this patch leaves obviously redundant conditionals such as "defined __USE_MISC || defined __USE_MISC", and does not update #endif comments where they referred to BSD or SVID in words instead of the literal macro name. This is intended to facilitate patch review by separating the less mechanical changes from these purely mechanical changes into a separate patch. (I do intend to integrate all the changes from <https://sourceware.org/ml/libc-alpha/2013-12/msg00226.html>, which I believe includes all the trailing comment updates, in subsequent patches.) Tested x86_64. * include/features.h (__USE_BSD): Remove macro definitions. (__USE_SVID): Likewise. (_BSD_SOURCE): Likewise. (_SVID_SOURCE): Likewise. [!defined _BSD_SOURCE && !defined _SVID_SOURCE]: Remove condition from definition of _DEFAULT_SOURCE. [_BSD_SOURCE || _SVID_SOURCE]: Change condition to [_DEFAULT_SOURCE]. * bits/fcntl.h [__USE_BSD]: Change condition to [__USE_MISC]. * bits/mman.h [__USE_BSD]: Likewise. * bits/termios.h [__USE_BSD]: Likewise. * bits/waitstatus.h [__USE_BSD]: Likewise. * ctype/ctype.h [__USE_SVID]: Likewise. * dirent/dirent.h [__USE_BSD]: Likewise. * grp/grp.h [__USE_SVID]: Likewise. [__USE_BSD]: Likewise. * inet/netinet/igmp.h [__USE_BSD]: Likewise. * io/fcntl.h [__USE_BSD]: Likewise. * io/ftw.h [__USE_BSD]: Likewise. * io/sys/stat.h [__USE_BSD]: Likewise. * libio/bits/stdio-ldbl.h [__USE_BSD]: Likewise. * libio/bits/stdio2.h [__USE_BSD]: Likewise. * libio/stdio.h [__USE_SVID]: Likewise. [__USE_BSD]: Likewise. * math/math.h [__USE_SVID]: Likewise. [__USE_BSD]: Likewise. * misc/bits/syslog-ldbl.h [__USE_BSD]: Likewise. * misc/bits/syslog.h [__USE_BSD]: Likewise. * misc/search.h [__USE_SVID]: Likewise. * misc/sys/mman.h [__USE_BSD]: Likewise. * misc/sys/syslog.h [__USE_BSD]: Likewise. * misc/sys/uio.h [__USE_BSD]: Likewise. * posix/bits/unistd.h [__USE_BSD]: Likewise. * posix/glob.h [__USE_BSD]: Likewise. * posix/regex.h [__USE_BSD]: Likewise. * posix/sys/types.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * posix/sys/utsname.h [__USE_SVID]: Likewise. * posix/sys/wait.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * posix/unistd.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * pwd/pwd.h [__USE_SVID]: Likewise. * resolv/netdb.h [__USE_BSD]: Likewise. * setjmp/setjmp.h [__USE_BSD]: Likewise. * signal/signal.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * socket/sys/socket.h [__USE_BSD]: Likewise. * stdlib/fmtmsg.h [__USE_SVID]: Likewise. * stdlib/stdlib.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * string/bits/string2.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * string/bits/string3.h [__USE_BSD]: Likewise. * string/endian.h [__USE_BSD]: Likewise. * string/string.h [__USE_SVID]: Likewise. [__USE_BSD]: Likewise. * string/strings.h [__USE_BSD]: Likewise. * sysdeps/generic/netinet/ip.h [__USE_BSD]: Likewise. * sysdeps/gnu/netinet/ip_icmp.h [__USE_BSD]: Likewise. * sysdeps/mach/hurd/bits/fcntl.h [__USE_BSD]: Likewise. * sysdeps/mach/hurd/bits/stat.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/mman.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/bits/sys_errlist.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/netinet/if_ether.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/netinet/if_fddi.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/netinet/if_tr.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/x86/bits/string.h [__USE_BSD]: Likewise. * sysvipc/sys/ipc.h [__USE_SVID]: Likewise. * termios/termios.h [__USE_BSD]: Likewise. * time/sys/time.h [__USE_BSD]: Likewise. * time/time.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_BSD]: Change condition to [__USE_MISC].
* Update copyright notices with scripts/update-copyrightsAllan McRae2014-01-011-1/+1
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* Update copyright notices with scripts/update-copyrights.Joseph Myers2013-01-021-1/+1
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* Remove __wur from fwrite, fwrite_unlockedJim Meyering2012-04-111-3/+3
| | | | | | | | [BZ #11959] * libio/stdio.h (fwrite, fwrite_unlocked): Remove __wur. It is not necessarily an error to ignore fwrite's return value. One can reliably use ferror to test for errors after the fact.
* Always declare gets for C++ up to C++11 without checking __USE_GNU.Joseph Myers2012-03-091-1/+1
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* BZ#13775: Fix vdprintf/dprintf ldbl-compat decl feature test conditional.Roland McGrath2012-02-271-6/+1
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* Replace FSF snail mail address with URLs.Paul Eggert2012-02-091-3/+2
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* Remove pre-ISO C supportUlrich Drepper2012-01-071-69/+69
| | | | No more __const.
* Do not declare gets in _GNU_SOURCE mode at allUlrich Drepper2012-01-071-1/+1
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* Fix C11 header changes for C++.Joseph Myers2012-01-061-2/+5
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* Better gets prototype and fallout from removalUlrich Drepper2012-01-011-1/+1
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* Remove gets declarationUlrich Drepper2012-01-011-0/+6
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* Mark a few more functions with __THROWNL.Ulrich Drepper2011-10-291-9/+9
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* Define SEEK_DATA and SEEK_HOLEUlrich Drepper2011-07-231-2/+6
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* Fix typos in comments.Ulrich Drepper2011-04-011-7/+7
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* Fix a couple of __REDIRECT () __THROW occurrencesJakub Jelinek2010-06-141-8/+8
| | | | This patch fixes some cases which fail to parse with C++.
* Fix standalone stdio.h inclusion.Ulrich Drepper2010-01-101-2/+22
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* * libio/stdio.h: dprintf, fmemopen, getdelim, getline,Ulrich Drepper2009-02-261-2/+6
| | | | open_memstream, and vdprintf are in POSIX 2008.
* * libio/stdio.h (vscanf): Fix -std=c99 redirect. Jakub Jelinek2008-05-241-1/+1
| | | | | | | | | | | | | | | | | | * stdio-common/Makefile (tests): Add scanf16 and scanf17. (CFLAGS-scanf17.c): New. * stdio-common/scanf14.c (main): Add fscanf and scanf tests. * stdio-common/scanf15.c (main): Likewise. * stdio-common/scanf16.c: New test. * stdio-common/scanf17.c: New test. 2008-05-24 Jakub Jelinek <jakub@redhat.com> * libio/stdio.h (vscanf): Fix -std=c99 redirect. * stdio-common/Makefile (tests): Add scanf16 and scanf17. (CFLAGS-scanf17.c): New. * stdio-common/scanf14.c (main): Add fscanf and scanf tests. * stdio-common/scanf15.c (main): Likewise. * stdio-common/scanf16.c: New test. * stdio-common/scanf17.c: New test.
* (vscanf): Fix definition for loser compilers.Ulrich Drepper2008-01-081-2/+2
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* * include/stdio.h (__isoc99_fscanf, __isoc99_scanf,Ulrich Drepper2007-09-181-0/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __isoc99_sscanf, __isoc99_vscanf): New prototypes. (__isoc99_vsscanf, __isoc99_vfscanf): New prototypes, add libc_hidden_proto. * include/wchar.h (__isoc99_fwscanf, __isoc99_wscanf, __isoc99_swscanf, __isoc99_vwscanf): New prototypes. (__isoc99_vswscanf, __isoc99_vfwscanf): New prototypes, add libc_hidden_proto. * libio/stdio.h (fscanf, scanf, sscanf, vfscanf, vscanf, vsscanf): Redirect to __isoc99_* if strict ISO C99 or POSIX conformance requested. * wcsmbs/wchar.h (fwscanf, wscanf, swscanf, vfwscanf, vwscanf, vswscanf): Redirect to __isoc99_* if strict ISO C99 or POSIX conformance requested. * libio/bits/stdio-ldbl.h (fscanf, scanf, sscanf, vfscanf, vscanf, vsscanf): Redirect to __nldbl___isoc99_* if strict ISO C99 or POSIX conformance requested. * wcsmbs/bits/wchar-ldbl.h (fwscanf, wscanf, swscanf, vfwscanf, vwscanf, vswscanf): Redirect to __nldbl___isoc99_* if strict ISO C99 or POSIX conformance requested. * stdio-common/Versions (libc): Export __isoc99_scanf@@GLIBC_2.7, __isoc99_vscanf@@GLIBC_2.7, __isoc99_fscanf@@GLIBC_2.7, __isoc99_vfscanf@@GLIBC_2.7, __isoc99_sscanf@@GLIBC_2.7 and __isoc99_vsscanf@@GLIBC_2.7. * stdio-common/Makefile (routines): Add isoc99_scanf, isoc99_vscanf, isoc99_fscanf, isoc99_vfscanf, isoc99_sscanf and isoc99_vsscanf. (tests): Add scanf14. (CFLAGS-vfprintf.c, CFLAGS-fprintf.c, CFLAGS-printf.c, CFLAGS-vfwprintf.c, CFLAGS-vfscanf.c, CFLAGS-vfwscanf.c, CFLAGS-fscanf.c, CFLAGS-scanf.c, CFLAGS-isoc99_vfscanf.c, CFLAGS-isoc99_vscanf.c, CFLAGS-isoc99_fscanf.c, CFLAGS-isoc99_scanf.c): Add $(exceptions). (CFLAGS-scanf15.c): Add various -I paths to prevent the compiler from using internal headers. * wcsmbs/Versions (libc): Export __isoc99_wscanf@@GLIBC_2.7, __isoc99_vwscanf@@GLIBC_2.7, __isoc99_fwscanf@@GLIBC_2.7, __isoc99_vfwscanf@@GLIBC_2.7, __isoc99_swscanf@@GLIBC_2.7 and __isoc99_vswscanf@@GLIBC_2.7. * wcsmbs/Makefile (routines): Add isoc99_wscanf, isoc99_vwscanf, isoc99_fwscanf, isoc99_vfwscanf, isoc99_swscanf and isoc99_vswscanf. (CFLAGS-isoc99_wscanf.c, CFLAGS-isoc99_fwscanf.c, CFLAGS-isoc99_vwscanf.c, CFLAGS-isoc99_vfwscanf.c): Add $(exceptions). (CPPFLAGS): Add -D_IO_MTSAFE_IO if needed. * stdio-common/isoc99_scanf.c: New file. * stdio-common/isoc99_vsscanf.c: New file. * stdio-common/isoc99_vscanf.c: New file. * stdio-common/isoc99_vfscanf.c: New file. * stdio-common/isoc99_fscanf.c: New file. * stdio-common/isoc99_sscanf.c: New file. * wcsmbs/isoc99_fwscanf.c: New file. * wcsmbs/isoc99_vswscanf.c: New file. * wcsmbs/isoc99_swscanf.c: New file. * wcsmbs/isoc99_wscanf.c: New file. * wcsmbs/isoc99_vwscanf.c: New file. * wcsmbs/isoc99_vfwscanf.c: New file. * libio/libio.h (_IO_FLAGS2_SCANF_STD): Define. * libio/libioP.h (_IO_acquire_lock_clear_flags2_fct): Also clear _IO_FLAGS2_SCANF_STD bit from _flags2. * stdio-common/vfscanf.c (_IO_vfscanf_internal): Don't handle %as, %aS and %a[ if _IO_FLAGS2_SCANF_STD is set in _flags2. * stdio-common/scanf14.c: New test. * stdio-common/scanf15.c: New test. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add isoc99_scanf, isoc99_fscanf, isoc99_sscanf, isoc99_vscanf, isoc99_vfscanf, isoc99_vsscanf, isoc99_wscanf, isoc99_fwscanf, isoc99_swscanf, isoc99_vwscanf, isoc99_vfwscanf and isoc99_vswscanf. * sysdeps/ieee754/ldbl-opt/Versions (libc): Export __nldbl___isoc99_scanf@@GLIBC_2.7, __nldbl___isoc99_fscanf@@GLIBC_2.7, __nldbl___isoc99_sscanf@@GLIBC_2.7, __nldbl___isoc99_vscanf@@GLIBC_2.7, __nldbl___isoc99_vfscanf@@GLIBC_2.7, __nldbl___isoc99_vsscanf@@GLIBC_2.7, __nldbl___isoc99_wscanf@@GLIBC_2.7, __nldbl___isoc99_fwscanf@@GLIBC_2.7, __nldbl___isoc99_swscanf@@GLIBC_2.7, __nldbl___isoc99_vwscanf@@GLIBC_2.7, __nldbl___isoc99_vfwscanf@@GLIBC_2.7 and __nldbl___isoc99_vswscanf@@GLIBC_2.7. * sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__isoc99_scanf, __isoc99_fscanf, __isoc99_sscanf, __isoc99_vscanf, __isoc99_vfscanf, __isoc99_vsscanf, __isoc99_wscanf, __isoc99_fwscanf, __isoc99_swscanf, __isoc99_vwscanf, __isoc99_vfwscanf, __isoc99_vswscanf): Add NLDBL_DECL. * sysdeps/ieee754/ldbl-opt/nldbl-compat.c (__nldbl___isoc99_scanf, __nldbl___isoc99_fscanf, __nldbl___isoc99_sscanf, __nldbl___isoc99_vscanf, __nldbl___isoc99_vfscanf, __nldbl___isoc99_vsscanf, __nldbl___isoc99_wscanf, __nldbl___isoc99_fwscanf, __nldbl___isoc99_swscanf, __nldbl___isoc99_vwscanf, __nldbl___isoc99_vfwscanf, __nldbl___isoc99_vswscanf): New functions. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vfscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_swscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vwscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_wscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_scanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_sscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vsscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_fwscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vfwscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vswscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_vscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isoc99_fscanf.c: New file. * stdio-common/Makefile (tests): Add scanf13. (scanf13-ENV): New. * stdio-common/vfscanf.c (_IO_vfscanf_internal): Handle m modifier followed by l. (STRING_ARG): Add width argument. (_IO_vfscanf_internal) <case L_('c')>: Handle %mc. <case L_('C')>: Handle %mlc and %mC. <case L_('s'), case L_('S'), case L_('[')>: Adjust STRING_ARG arguments. * stdio-common/scanf13.c: New test. * libio/libioP.h (_IO_acquire_lock_clear_flags2_fct): Clear the _IO_FLAGS2_FORTIFY bit from _flags2 rather than _flags. type and __THROW marker of splice, vmsplice, and tee.
* * misc/sys/cdefs.h (__va_arg_pack): Define for GCC 4.3+.Ulrich Drepper2007-09-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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.
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