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2015-02-07Add ersatz _Static_assert on older C hostsPaul Eggert
* misc/sys/cdefs.h (_Static_assert): Define a substitute, if on a pre-C11 C platform that is not known to support _Static_assert.
2015-01-02Update copyright dates with scripts/update-copyrights.Joseph Myers
2014-09-16Make __extern_always_inline usable on clang++ againSiddhesh Poyarekar
The fix for BZ #17266 (884ddc5081278f488ef8cd49951f41cfdbb480ce) removed changes that had gone into cdefs.h to make __extern_always_inline usable with clang++. This patch adds back support for clang to detect if GNU inlining semantics are available, this time without breaking the gcc use case. The check put here is based on the earlier patch and assertion[1] that checking if __GNUC_STDC_INLINE__ or __GNUC_GNU_INLINE__ is defined is sufficient to determine that clang++ suports GNU inlining semantics. Tested with a simple program that builds with __extern_always_inline with the patch and fails compilation without it. #include <stdio.h> #include <sys/cdefs.h> extern void foo_alias (void) __asm ("foo"); __extern_always_inline void foo (void) { puts ("hi oh world!"); return foo_alias (); } void foo_alias (void) { puts ("hell oh world"); } int main () { foo (); } [1] https://sourceware.org/ml/libc-alpha/2012-12/msg00306.html [BZ #17266] * misc/sys/cdefs.h: Define __extern_always_inline for clang 4.2 and newer.
2014-09-16Revert to defining __extern_inline only for gcc-4.3+ (BZ #17266)Siddhesh Poyarekar
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.
2014-07-03Fix Wundef warning for __STDC_VERSION__Siddhesh Poyarekar
c4c4124473c187b5c4642611390897666c3d3970 added the _Noreturn macro for pre-C11 compilers, but it now throws a new Wundef warning during `make check` for __STDC_VERSION__ which gcc does not define by default. The following patch fixes this in line with other uses of __STDC_VERSION__ in the file.
2014-07-02misc/sys/cdefs.h: Add _Noreturn macro for pre-C11 compilersPaul Eggert
2014-07-02 Will Newton <will.newton@linaro.org> Paul Eggert <eggert@cs.ucla.edu> * misc/sys/cdefs.h (_Noreturn): New macro, for pre-C11 compilers.
2014-03-18misc/sys/xattr.h: guard against linux uapi header inclusionSerge Hallyn
If the glibc xattr.h header is included after the uapi header, compilation fails due to an enum re-using a #define from the uapi header. Protect against this by guarding the define and enum inclusions against each other. (A corresponding kernel patch has been sent here: http://lkml.org/lkml/2014/3/7/331 ) (See https://lists.debian.org/debian-glibc/2014/03/msg00029.html and https://sourceware.org/glibc/wiki/Synchronizing_Headers for more information.) Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2014-02-25misc/sys/select.h (__FD_MASK): Avoid signed integer overflow.Florian Weimer
Shifting into the sign position is currently supported as a GCC extension, but explicitly subjected to future changes. Computation in the unsigned type followed by a cast to the signed type is a GCC extension that will be available forever.
2014-02-21Complete _BSD_SOURCE / _SVID_source followup cleanup.Joseph Myers
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.
2014-02-12Combine __USE_BSD and __USE_SVID into __USE_MISC.Joseph Myers
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].
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae
2013-12-18Add error reporting (via errno) to getauxval().Brooks Moses
[BZ 15846] As discussed in the recent thread on my $EXEC_ORIGIN patch and in BZ 15846, getauxval() presently has no unambiguous way of reporting an error condition. It currently returns zero on error, but this may also be a valid result for some auxv entries. As there is no clear invalid result for all current and future auxv entries, this patch sets errno (following a suggestion in the BZ entry). This version of the patch also adds documentation and tests for the value-not-found conditions in getauxval().
2013-05-08Only defined DEV_BSIZE if not already defined.Aurelien Jarno
2013-05-01Use __gnu_inline__ for __extern_always_inline in g++-4.2Richard Smith
Use the __gnu_inline__ attribute in _FORTIFY_SOURCE's __extern_always_inline macro whenever the compiler supports it. Previously this macro only included the __gnu_inline__ attribute in C++ mode for gcc >= 4.3. However, __gnu_inline__ semantics are always desired for the __extern_always_inline functions, and are available in g++ 4.2 (and some releases of g++ 4.1, and also in Clang, which claims to be g++ 4.2). This change stops g++-4.2 from emitting weak definitions for the fortify wrapper functions if they can't be inlined, and also improves Clang compatibility.
2013-02-18sys/cdefs.h: export __attribute_alloc_size__Mike Frysinger
Since we want to use this in installed headers, move it to the installed sys/cdefs.h. This requires a slight tweaking of the name (add trailing underscores). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-02-13Remove __ptrvalue, __bounded and __unbounded.Joseph Myers
2013-02-11Fix a typo in the mremap comment.Roland McGrath
2013-01-23Whitespace fix for __glibc_likely/__glibc_unlikely defns.Roland McGrath
2013-01-02Fix copyright notice corruption from update-copyright bug.Joseph Myers
2013-01-02Update copyright notices with scripts/update-copyrights.Joseph Myers
2012-12-28Add __glibc_likely as an alias for __builtin_expect when availableSiddhesh Poyarekar
2012-09-26Fix up definitions for older compilers.Marek Polacek
2012-08-17Split sys/param.h out into common file and sysdeps bits/param.h file.Roland McGrath
2012-07-10Fix LOG_MAKEPRI to agree with BSDAndreas Schwab
2012-06-04Wrap __builtin_expect in pthread.hSiddhesh Poyarekar
[BZ #14188] This fixes compilation of programs using pthread_cleanup_push built with non-gcc compilers and older gcc compilers.
2012-05-21 * misc/getauxval.c (__getauxval): Use unsigned long int.Richard Henderson
* misc/sys/auxv.h: Include <sys/cdefs.h>. (getauxval): Use unsigned long int.
2012-05-20Add <sys/auxv.h> and getauxval.Richard Henderson
2012-04-29Fix attributes for fortify functions.Marek Polacek
2012-02-09Replace FSF snail mail address with URLs.Paul Eggert
2012-01-07Remove pre-ISO C supportUlrich Drepper
No more __const.
2011-11-11Mark setjmp and ucontext functions as non-leafAndreas Schwab
2011-10-27Don't mark memory synchronisation functions as leafAndreas Schwab
2011-10-17Fix syntax error in __THROW macroAndreas Schwab
2011-10-16Use leaf function attribute in __THROWUlrich Drepper
2011-09-13Avoid macro clash between <sys/select.h> and <linux/posix_types.h>Andreas Schwab
2011-09-08Add range checking for FD_SET, FD_CLR, and FD_ISSETUlrich Drepper
2011-07-20Add const attr to gnu_dev_{major,minor,makedev}Marek Polacek
2009-11-06Fix preadv, pwritev and fallocate for -D_FILE_OFFSET_BITS=64.Jakub Jelinek
As reported in http://bugzilla.redhat.com/533063 , preadv/pwritev prototypes are wrong on 32-bit arches with -D_FILE_OFFSET_BITS=64 and as I've just found, fallocate is wrong too. The problem is that only off_t is remapped to the 64-bit type transparently, __off_t is not.
2009-06-14Fix warnings when using <sys/select.h>.Ulrich Drepper
gcc 4.4 is more picky. And the x86-64 version of <bits/select.h> contained a now unnecessary asm optimization. Remove it.
2009-04-23* sysdeps/unix/sysv/linux/preadv.c: The kernel API changed. Adjust.Ulrich Drepper
* sysdeps/unix/sysv/linux/pwritev.c: Likewise. 2009-04-23 Jakub Jelinek <jakub@redhat.com> * sysdeps/posix/pwritev.c (PWRITEV): Fix up comment. Copy data from vector to temporary buffer and call PWRITEV after it instead of vice versa. * sysdeps/posix/preadv.c: Fix up comment. * misc/preadv.c: Likewise. * misc/preadv64.c: Likewise. * misc/pwritev.c: Likewise. * misc/pwritev64.c: Likewise. * misc/sys/uio.h (preadv, pwritev, preadv64, pwritev64): Likewise. 2009-04-23 Ulrich Drepper <drepper@redhat.com>
2009-04-03* misc/Makefile (routines): Add preadv, preadv64, pwritev, pwritev64.Ulrich Drepper
* misc/Versions: Export preadv, preadv64, pwritev, pwritev64 for GLIBC_2.10. * misc/sys/uio.h: Declare preadv, preadv64, pwritev, pwritev64. * sysdeps/unix/sysv/linux/kernel-features.h: Add entries for preadv and pwritev. * misc/preadv.c: New file. * misc/preadv64.c: New file. * misc/pwritev.c: New file. * misc/pwritev64.c: New file. * sysdeps/posx/preadv.c: New file. * sysdeps/posx/preadv64.c: New file. * sysdeps/posx/pwritev.c: New file. * sysdeps/posx/pwritev64.c: New file. * sysdeps/unix/sysv/linux/preadv.c: New file. * sysdeps/unix/sysv/linux/preadv64.c: New file. * sysdeps/unix/sysv/linux/pwritev.c: New file. * sysdeps/unix/sysv/linux/pwritev64.c: New file. * sysdeps/unix/sysv/linux/wordsize-64/preadv64.c: New file. * sysdeps/unix/sysv/linux/wordsize-64/pwritev64.c: New file.
2009-03-02* misc/sys/cdefs.h (__extern_always_inline): Add __artificial__ Jakub Jelinek
attribute also for non-C99 inline semantics variant. 2009-03-02 Richard Guenther <rguenther@suse.de> * misc/sys/cdefs.h (__extern_always_inline): Add __artificial__ attribute also for non-C99 inline semantics variant.
2008-03-05[BZ #5779]Ulrich Drepper
* misc/sys/queue.h: Add STAILQ_CONCAT and TAILQ_CONCAT definitions. Patch by Roy Marples <roy@marples.name>.
2007-10-03* misc/sys/cdefs.h (__REDIRECT_LDBL, __REDIRECT_NTH_LDBL): New macros.Ulrich Drepper
* wcsmbs/bits/wchar2.h (__swprintf_alias, __vswprintf_alias): Use __REDIRECT_NTH_LDBL macro rather than __REDIRECT_NTH.
2007-10-032007-10-03 Jakub JelinekUlrich Drepper
* misc/sys/cdefs.h (__extern_always_inline): For GCC 4.3+ add __artificial__ attribute.
2007-09-26* misc/sys/cdefs.h (__warndecl, __errordecl): For GCC 4.3+ defineUlrich Drepper
with __warning__/__error__ attributes. (__warnattr): Define. * stdlib/bits/stdlib.h (__realpath_chk_warn, __ptsname_r_chk_warn, __mbstowcs_chk_warn, __wcstombs_chk_warn): New aliases with __warnattr. (realpath, ptsname_r, mbstowcs, wcstombs): Call __*_chk_warn instead of __*_chk if compile time detectable overflow is found. * libio/bits/stdio2.h (__fgets_chk_warn, __fread_chk_warn, __fgets_unlocked_chk_warn, __fread_unlocked_chk_warn): New aliases with __warnattr. (fgets, fread, fgets_unlocked, fread_unlocked): Call __*_chk_warn instead of __*_chk if compile time detectable overflow is found. (__gets_alias): Rename to... (__gets_warn): ... this. Add __warnattr. (gets): Call __gets_warn instead of __gets_alias. * socket/bits/socket2.h (__recv_chk_warn, __recvfrom_chk_warn): New aliases with __warnattr. (recv, recvfrom): Call __*_chk_warn instead of __*_chk if compile time detectable overflow is found. * posix/bits/unistd.h (__read_chk_warn, __pread_chk_warn, __pread64_chk_warn, __readlink_chk_warn, __readlinkat_chk_warn, __getcwd_chk_warn, __confstr_chk_warn, __getgroups_chk_warn, __ttyname_r_chk_warn, __getlogin_r_chk_warn, __gethostname_chk_warn, __getdomainname_chk_warn): New aliases with __warnattr. (read, pread, pread64, readlink, readlinkat, getcwd, confstr, getgroups, ttyname_r, getlogin_r, gethostname, getdomainname): Call __*_chk_warn instead of __*_chk if compile time detectable overflow is found. (__getgroups_chk): Rename argument to __listlen from listlen. (__getwd_alias): Rename to... (__getwd_warn): ... this. Add __warnattr. (getwd): Call __getwd_warn instead of __getwd_alias. * wcsmbs/bits/wchar2.h (__wmemcpy_chk_warn, __wmemmove_chk_warn, __wmempcpy_chk_warn, __wmemset_chk_warn, __wcsncpy_chk_warn, __wcpncpy_chk_warn, __fgetws_chk_warn, __fgetws_unlocked_chk_warn, __mbsrtowcs_chk_warn, __wcsrtombs_chk_warn, __mbsnrtowcs_chk_warn, __wcsnrtombs_chk_warn): New aliases with __warnattr. (wmemcpy, wmemmove, wmempcpy, wmemset, mbsrtowcs, wcsrtombs, mbsnrtowcs, wcsnrtombs): Call __*_chk_warn instead of __*_chk if compile time detectable overflow is found. (wcsncpy, wcpncpy): Likewise. For constant __n fix check whether to use __*_chk or not. (fgetws, fgetws_unlocked): Divide __bos by sizeof (wchar_t), both in comparisons which function should be called and in __*_chk* arguments. Call __*_chk_warn instead of __*_chk if compile time detectable overflow is found. (swprintf, vswprintf): Divide __bos by sizeof (wchar_t) in __*_chk argument. * debug/tst-chk1.c (do_test): Add a few more tests.
2007-09-16Undo second occurrence of RH GCC hack.Jakub Jelinek
2007-09-15* stdio-common/vfscanf.c (_IO_vfwscanf): Add support for 'm'Ulrich Drepper
modifier. Patch by Jakub Jelinek.
2007-09-15* rt/Versions (librt): Export __mq_open_2@@GLIBC_2.7.Ulrich Drepper
* rt/Makefile (headers): Add bits/mqueue2.h. * rt/mqueue.h: Include bits/mqueue2.h if -D_FORTIFY_SOURCE=2, optimizing with GCC and __va_arg_pack_len is defined. * rt/bits/mqueue2.h: New file. * rt/mq_open.c (__mq_open): Renamed from mq_open. (mq_open): New strong_alias. (__mq_open_2): New function. * sysdeps/unix/sysv/linux/mq_open.c (__mq_open): Renamed from mq_open. (mq_open): New strong_alias. (__mq_open_2): New function. * debug/Versions (libc): Export __fortify_fail@@GLIBC_PRIVATE. * Versions.def (librt): Add GLIBC_2.7 version. * debug/fortify_fail.c (__fortify_fail): Add libc_hidden_def. * include/stdio.h (__fortify_fail): Add libc_hidden_proto. * misc/sys/cdefs.h (__errordecl, __va_arg_pack_len): Define. * io/fcntl.h: Include bits/fcntl2.h when __va_arg_pack_len is defined rather than when not C++. * io/bits/fcntl2.h (__open_alias, __open64_alias, __openat_alias, __openat64_alias): New redirects. (__open_too_many_args, __open_missing_mode, __open64_too_many_args, __open64_missing_mode, __openat_too_many_args, __openat_missing_mode, __openat64_too_many_args, __openat64_missing_mode): New __errordecls. (open, open64, openat, openat64): Rewrite as __extern_always_inline functions instead of function-like macros.
2007-09-15* misc/sys/cdefs.h (__va_arg_pack): Define for GCC 4.3+.Ulrich Drepper
* 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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