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* Revert "headers: avoid bareword attributes" for clangEric Blake2017-08-251-14/+16
| | | | | | | | | | | | | | | This reverts most of commit 979d467ff6e39ee5c52cf1aac7a6c9c63058141c. We cannot avoid some bareword attributes until clang is fixed to properly support __-decorated attributes; see this bug: https://bugs.llvm.org/show_bug.cgi?id=34319 The macros in question expand to the empty string under gcc, so only compilation under clang is affected, and since clang has the bug, the obvious solution is to roll back the changes, and document the issue. Signed-off-by: Eric Blake <eblake@redhat.com>
* headers: avoid bareword attributesEric Blake2017-08-171-14/+14
| | | | | | | | | Always use the __-decorated form of an attribute name in public headers, as the bareword form is in the user's namespace, and we don't want compilation to break just because the user defines the bareword to mean something else. Signed-off-by: Eric Blake <eblake@redhat.com>
* Renumber copyright clause 4imp2017-04-041-1/+1
| | | | | | | | | Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann <jschauma@stevens.edu> Pull Request: https://github.com/freebsd/freebsd/pull/96
* don't use C99 static array indices with older GCC versionsavg2017-04-041-0/+1
| | | | | | | | | | | | | | For example, the FreeBSD GCC (4.2.1) has a spotty support for that feature. If the static keyword is used with an unnamed array parameter in a function declaration, then the compilation fails with: error: static or type qualifiers in abstract declarator The feature does work if the parameter is named. So, the restriction introduced in this commit can be removed when all affected function prototypes have the workaround. MFC after: 1 week Sponsored by: Panzura
* Addition of clang nullability qualifiers.pfg2017-04-041-0/+7
| | | | | | | | | | | | | | | For consistency with the qualifiers added in r310977, define a new qualifier _Null_unspecified which is also defined in clang 3.7+. Add two new macros: __NULLABILITY_PRAGMA_PUSH __NULLABILITY_PRAGMA_POP These are for use in headers when we want avoid noisy warnings if some pointers are left without nullability annotations. These are added with way ahead of their first use to teach the GCC ports headers of their existance before their first use.
* Remove unused __gnu_inline() attribute.pfg2017-04-041-16/+0
| | | | | | | | | | | | This was meant to be used by a future FORTIFY_SOURCE implementation. Probably for good, FORTIFY_SOURCE and this particular GCCism were never well supported by clang or other compilers. Furthermore, the technology has long since been replaced by either static checkers, sanitizers, or even just the strong stack protector that was enabled by default. Drop __gnu_inline to avoid cluttering the headers. MFC after: 5 days
* Addition of clang nullability qualifiers.pfg2017-04-041-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | Add two new qualifiers for use by the static checkers: _Nonnull The _Nonnull nullability qualifier indicates that null is not a meaningful value for a value of the _Nonnull pointer type. _Nullable The _Nullable nullability qualifier indicates that a value of the _Nullable pointer type can be null. These were introduced in Clang 3.7. For more information, see: http://clang.llvm.org/docs/AttributeReference.html#nonnull We add these now without using them so that the GCC ports have time to pick up the header change. Hinted by: Android Bionic libc [1] Also seen in: Apple's Libc-1158.20.4 [1] https://github.com/android/platform_bionic/commit/baa2a973bd776a51bb05a8590ab05d86eea7b321
* Fix C++ includability of crypto headers with static array sizesasomers2017-04-041-0/+14
| | | | | | | | | | | | | | | | | | | | | | C99 allows array function parameters to use the static keyword for their sizes. This tells the compiler that the parameter will have at least the specified size, and calling code will fail to compile if that guarantee is not met. However, this syntax is not legal in C++. This commit reverts r300824, which worked around the problem for sys/md5.h only, and introduces a new macro: min_size(). min_size(x) can be used in headers as a static array size, but will still compile in C++ mode. Reviewed by: cem, ed MFC after: 4 weeks Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D8277 fix a typo in __STDC_VERSION__ in __min_size requirements MFC after: 1 week Sponsored by: Panzura
* Stop exposing the C11 _Atomic() macro in <sys/cdefs.h>, when compiling for C++.dim2017-04-041-1/+2
| | | | | | | | | | | It clashes with the one in libc++'s <atomic> header. (Previously, the _Atomic() macro was defined in <stdatomic.h>, which is only for use with C11, but for various reasons it was moved to its current location in r251804.) Discussed with: bdrewery, ed MFC after: 2 weeks
* Rename __sentinel to __null_sentinelpfg2017-04-041-2/+2
| | | | | | GCC 5 uses a conflicting __sentinel definition in include/c++/bits/stl_algo.h Reported by: matteo
* sys/cdefs.h: Define __hidden as empty on CygwinCorinna Vinschen2016-11-081-0/+5
| | | | | | | Non-default visibility attributes are unsupported on PE/COFF, so don't use in __hidden definition for Cygwin. Add comment. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
* Feature test macros overhaul: sys/features.hYaakov Selkowitz2016-03-171-126/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the complete rework of the feature tests macros for better compatibility with GNU libc, primarily based on the Linux man pages documentation: http://man7.org/linux/man-pages/man7/feature_test_macros.7.html The previous implementation was flawed in its approach that macros were often used to hide symbols if defined (e.g. !defined __STRICT_ANSI__ or !defined _POSIX_SOURCE), whereas the approach of glibc is that these macros make symbols available when defined (e.g. defined _BSD_SOURCE, or as used internally, #if __BSD_VISIBLE). As much open-source software is written with glibc in mind, this necessitated patching numerous packages just to compile. In particular, __STRICT_ANSI__ (which is defined by gcc -ansi or -std=c*) was given too much importance. This implementation limits the influence of __STRICT_ANSI__ to controlling the default when no other feature test macros are defined, and to the inclusion of <alloca.h> in <stdlib.h> as documented. These are the only places where __STRICT_ANSI__ should be tested. The following macros are now accepted: _ATFILE_SOURCE, _BSD_SOURCE, _DEFAULT_SOURCE, _ISOC99_SOURCE, _ISOC11_SOURCE, _LARGEFILE_SOURCE, _SVID_SOURCE, _XOPEN_SOURCE_EXTENDED. The existing __*_VISIBLE internal macros have been kept mostly compatible with the original BSD implementation, with some changes to the criteria which controls them. Several more macros in this style have been added where needed for concision or accuracy. Enabling C++11 or newer in the compiler also enables C99 and C11 functions. Doing so should help move away from the need to define _GNU_SOURCE in g++ for _GLIBCXX_USE_C99 support as on Linux: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51749 Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
* Synchronize with FreeBSD.Jeff Johnston2015-10-131-22/+138
| | | | | * libc/include/sys/cdefs.h: Synchronize with latest FreeBSD version.
* Add FreeBSD style changes to sys/cdefs.hJeff Johnston2015-10-131-32/+32
| | | | | * libc/include/sys/cdefs.h: Add style changes of latest FreeBSD version.
* * libc/include/sys/cdefs.h (_GNU_SOURCE): Move check so it has anJon TURNEY2015-02-251-6/+8
| | | | effect when _XOPEN_SOURCE is also defined.
* * libc/include/machine/_default_types.h: Move extern "C" afterCorinna Vinschen2013-12-031-4/+4
| | | | | | | | | | | | | | | | | | | | | | | header includes. Include <sys/features.h> for __GNUC_PREREQ__(). (__u?int.*_t): Define via GCC provided __U?INT.*_TYPE__ if available. (__intptr_t): Define. (__uintptr_t): Likewise. * libc/include/stdint.h: Include <machine/_default_types.h> instead of <_ansi.h>. (u?int.*_t): Define via __u?int.*_t provided by <machine/_default_types.h>. (u?int_fast.*_t): Define via GCC provided __U?INT_FAST.*_TYPE__ if available. (U?INT.*(MIN|MAX)): Define via GCC provided __U?INT.*(MIN|MAX)__ if available. (U?INT.*_C): Define via GCC provided __U?INT.*_C if available. * libc/include/sys/cdefs.h: Use <machine/_default_types.h> instead of <stdint.h>. * libc/sys/rtems/sys/cpuset.h: Likewise. * libc/sys/rtems/machine/_types.h: Include <stdint.h> for FreeBSD compatibility.
* 2013-11-29 Jennifer Averett <jennifer.averett@oarcorp.com>Joel Sherrill2013-11-291-1/+7
| | | | | | | | | | | | | * libc/include/pthread.h (pthread_attr_setaffinity_np): Add pthread SMP affinity attributes to methods to RTEMS for compatibility with GNU/Linux. (pthread_attr_getaffinity_np): Likewise. (pthread_setaffinity_np): Likewise. (pthread_getaffinity_np): Likewise. (pthread_getattr_np): Add for GNU/Linux compatibility. * libc/include/sys/types.h: Add cpuset to pthread_attr_t for RTEMS. * libc/include/sys/cdefs.h (_GNU_SOURCE): Defining _GNU_SOURCE turns on all _XXX_VISBLE feature flags.
* 2013-09-12 Sebastian Huber <sebastian.huber@embedded-brains.de>Jeff Johnston2013-09-121-24/+62
| | | | | | * libc/include/sys/cdefs.h: Synchronize with latest FreeBSD version. * libc/include/stdatomic.h: Likewise.
* * libc/include/cdefs.h (__has_extension): New define.Corinna Vinschen2013-06-071-0/+13
| | | | | | | (__has_feature): Likewise. (__has_include): Likewise. (__has_builtin): Likewise. * libc/include/stdatomic.h: New.
* * libc/include/sys/cdefs.h (_Static_assert): Accommodate gcc >= 4.6.Corinna Vinschen2013-05-221-1/+3
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* * libc/include/sys/cdefs.h: Align with latest FreeBSD file header.Corinna Vinschen2013-04-221-48/+531
| | | | * libc/include/sys/features.h (__GNUC_PREREQ__): Define.
* * libc/sys/rtems/sys/queue.h: Delete file.Corinna Vinschen2013-04-161-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * libc/include/sys/cdefs.h (__containerof): New define. (__DEQUALIFY): Likewise. * libc/include/sys/queue.h (TRACEBUF_INITIALIZER): Likewise. (TRACEBUF): Likewise. (LIST_FOREACH_SAFE): Likewise. (LIST_PREV): Likewise. (LIST_SWAP): Likewise. (QMD_LIST_CHECK_HEAD): Likewise. (QMD_LIST_CHECK_NEXT): Likewise. (QMD_LIST_CHECK_PREV): Likewise. (QMD_SAVELINK): Likewise. (QMD_TAILQ_CHECK_HEAD): Likewise. (QMD_TAILQ_CHECK_NEXT): Likewise. (QMD_TAILQ_CHECK_PREV): Likewise. (QMD_TAILQ_CHECK_TAIL): Likewise. (QMD_TRACE_ELEM): Likewise. (QMD_TRACE_HEAD): Likewise. (SLIST_FOREACH_PREVPTR): Likewise. (SLIST_FOREACH_SAFE): Likewise. (SLIST_REMOVE_AFTER): Likewise. (SLIST_SWAP): Likewise. (STAILQ_FOREACH_SAFE): Likewise. (STAILQ_REMOVE_AFTER): Likewise. (STAILQ_SWAP): Likewise. (TAILQ_FOREACH_REVERSE_SAFE): Likewise. (TAILQ_FOREACH_SAFE): Likewise. (TAILQ_SWAP): Likewise. (TRASHIT): Likewise. (SLIST_REMOVE): Use SLIST_REMOVE_AFTER(). (STAILQ_LAST): Use __containerof(). (STAILQ_REMOVE): Use STAILQ_REMOVE_AFTER().
* * libc/include/sys/cdefs.h (__CONCAT1): Define.Corinna Vinschen2011-03-031-0/+21
| | | | | | | | | (__CONCAT): Define. (__STRING): Define. (__XSTRING): Define. (__ASMNAME): Define. * libc/include/string.h (strerror_r): Use __ASMNAME to take target specific label prefixes into account.
* * Makefile.am (LIB_OBJECTLISTS): AddThomas Fitzsimmons2002-06-201-0/+123
libc/search/objectlist.awk.in. * libc/Makefile.am (SUBDIRS): Add search. (SUBLIBS): Add search/libsearch.la. * libc/configure.in (AC_OUTPUT): Add search/Makefile. * libc/search: New directory. * libc/search/Makefile.am: New file. * libc/search/extern.h: New file. * libc/search/hash.c: New file. * libc/search/hash.h: New file. * libc/search/hash_bigkey.c: New file. * libc/search/hash_buf.c: New file. * libc/search/hash_func.c: New file. * libc/search/hash_log2.c: New file. * libc/search/hash_page.c: New file. * libc/search/hcreate.3: New file. * libc/search/hcreate.c: New file. * libc/search/hcreate.c~: New file. * libc/search/hcreate_r.c: New file. * libc/search/ndbm.c: New file. * libc/search/page.h: New file. * libc/search/tdelete.c: New file. * libc/search/tdestroy.c: New file. * libc/search/tfind.c: New file. * libc/search/tsearch.3: New file. * libc/search/tsearch.c: New file. * libc/search/twalk.c: New file. * libc/include/db.h: New file. * libc/include/ndbm.h: New file. * libc/include/search.h: New file. * libc/include/sys/queue.h: New file. * libc/include/sys/cdefs.h: New file. * libc/include/sys/param.h [__IEEE_LITTLE_ENDIAN,__IEEE_BIG_ENDIAN]: Set BYTE_ORDER to LITTLE_ENDIAN or BIG_ENDIAN. * libc/include/sys/errno.h (EFTYPE): New macro. * libc/search/bsearch.c: Move from libc/stdlib. * libc/search/qsort.c: Likewise. * libc/stdlib/Makefile.am (LIB_SOURCES): Remove bsearch.c and qsort.c. (CHEWOUT_FILES): Remove bsearch.def and qsort.def. * libc/stdlib/stdlib.tex: Remove references to bsearch and qsort.
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