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Joseph Myers e5ac7bd679 Add C2X timespec_getres
ISO C2X adds a timespec_getres function alongside the C11
timespec_get, with functionality similar to that of POSIX clock_getres
(including allowing a NULL pointer to be passed to the function).
Implement this function for glibc, similarly to the implementation of
timespec_get.

This includes a basic test like that of timespec_get, but no
documentation in the manual, given that TIME_UTC and timespec_get
aren't documented in the manual at all.  The handling of 64-bit time
follows that in timespec_get; people maintaining patch series for
64-bit time will need to update them accordingly (to export
__timespec_getres64, redirect calls in time.h and run the test for
_TIME_BITS=64).

Tested for x86_64 and x86, and (previous version; only testcase
differs) with build-many-glibcs.py.
2021-05-17 20:55:21 +00:00
argp argp: Avoid undefined behaviour when invoking qsort(). 2021-02-04 16:44:29 -03:00
assert Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
benchtests benchtests: Use JSON for bench-rawmemchr output 2021-05-17 11:10:19 -03:00
bits sysconf: Add _SC_MINSIGSTKSZ/_SC_SIGSTKSZ [BZ #20305] 2021-02-01 11:00:52 -08:00
catgets Update copyright dates not handled by scripts/update-copyrights. 2021-01-02 12:17:34 -08:00
ChangeLog.old Prepare for glibc 2.33 release 2021-02-01 14:15:33 -03:00
conform Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
crypt Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
csu elf: Introduce __tls_pre_init_tp 2021-05-10 10:31:41 +02:00
ctype Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
debug Remove all usage of @BASH@ or ${BASH} in installed files, and hardcode /bin/bash instead 2021-05-12 07:47:11 +05:30
dirent Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dlfcn elf: Partially initialize ld.so after static dlopen (bug 20802) 2021-05-17 10:06:57 +02:00
elf elf: Move static TLS size and alignment into _rtld_global_ro 2021-05-17 10:17:41 +02:00
gmon Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
gnulib Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
grp Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
gshadow Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
hesiod Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
htl fork.h: replace with register-atfork.h 2021-03-29 21:41:09 +02:00
hurd hurd: Export _hurd_libc_proc_init 2021-04-12 00:23:36 +02:00
iconv Run $(objpfx)iconvconfig with $(run-program-prefix) [BZ #27477] 2021-05-07 04:38:44 -07:00
iconvdata gconv: Fix assertion failure in ISO-2022-JP-3 module (bug 27256) 2021-01-27 14:02:47 +01:00
include Add C2X timespec_getres 2021-05-17 20:55:21 +00:00
inet inet: Free result from getaddrinfo 2021-05-13 08:05:19 +05:30
intl Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
io Annotate additional APIs with GCC attribute access. 2021-05-06 11:01:05 -06:00
libio Enable support for GCC 11 -Wmismatched-dealloc. 2021-05-16 15:21:18 -06:00
locale write_archive_locales: Fix memory leak 2021-05-11 17:57:30 +05:30
localedata Update sv_SE to treate 'W' as a distinct character (Bug 25036) 2021-04-06 12:34:02 -04:00
login Update copyright dates not handled by scripts/update-copyrights. 2021-01-02 12:17:34 -08:00
mach Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
malloc Missing ENOMEM in realloc_check wrapper (bug 27870) 2021-05-17 21:39:23 +02:00
manual nptl: Consolidate async cancel enable/disable implementation in libc 2021-05-05 17:19:32 +02:00
math Improve the accuracy of tgamma (BZ #26983) 2021-04-07 13:23:39 +02:00
mathvec Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
misc Enable support for GCC 11 -Wmismatched-dealloc. 2021-05-16 15:21:18 -06:00
nis Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
nptl nptl: Move pthread_sigqueue into libc 2021-05-17 10:25:12 +02:00
nptl_db nptl: Move __nptl_create_event, __nptl_death_event into libc 2021-05-17 10:06:44 +02:00
nscd nss: fix nss_database_lookup2's alternate handling [BZ #27416] 2021-03-09 14:34:50 -05:00
nss Use a #pragma to suppress a bogus GCC 10 warning instead of an assert [BZ 27832]. 2021-05-10 14:30:09 -06:00
po Update translations 2021-02-01 14:15:16 -03:00
posix linux: Use sched_getaffinity for __get_nprocs (BZ #27645) 2021-05-07 13:54:09 -03:00
pwd Annotate additional APIs with GCC attribute access. 2021-05-06 11:01:05 -06:00
resolv resolv: tst-p_secstodate can be a regular test 2021-03-09 21:07:24 +01:00
resource setrlimit/getrlimit: Use __nonnull to avoid null pointer 2021-02-10 08:36:17 -03:00
rt nptl: Consolidate async cancel enable/disable implementation in libc 2021-05-05 17:19:32 +02:00
scripts scripts/versions.awk: Add strings and hashes to <first-versions.h> 2021-05-10 10:31:41 +02:00
setjmp nptl: Move __pthread_unwind_next into libc 2021-04-21 19:49:50 +02:00
shadow Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
signal nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
socket socket: Add CFLAGS-accept.c and CFLAGS-connect.c 2021-04-01 14:45:49 -03:00
soft-fp Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
stdio-common linux: Move funlockfile/_IO_funlockfile into libc 2021-05-10 23:35:44 -03:00
stdlib Enable support for GCC 11 -Wmismatched-dealloc. 2021-05-16 15:21:18 -06:00
string Reindent string/test-memmove.c 2021-04-19 17:46:05 -07:00
sunrpc linux: Normalize and return timeout on select (BZ #27651) 2021-04-12 18:38:37 -03:00
support support: Free gdb_script_name 2021-05-13 08:07:23 +05:30
sysdeps Add C2X timespec_getres 2021-05-17 20:55:21 +00:00
sysvipc Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
termios Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
time Add C2X timespec_getres 2021-05-17 20:55:21 +00:00
timezone Remove all usage of @BASH@ or ${BASH} in installed files, and hardcode /bin/bash instead 2021-05-12 07:47:11 +05:30
wcsmbs Enable support for GCC 11 -Wmismatched-dealloc. 2021-05-16 15:21:18 -06:00
wctype Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
.gitattributes Assume __NR_openat is always defined 2016-03-23 23:35:08 +01:00
.gitignore Add *.pyc to .gitignore 2015-05-18 15:26:26 +05:30
abi-tags Remove the bulk of the NaCl port. 2017-05-20 08:09:10 -04:00
aclocal.m4 LIBC_SLIBDIR_RTLDDIR: substitute arguments in single quotes 2018-01-25 17:20:28 +01:00
config.h.in Add pthread-in-libc, libpthread-routines-var, librt-routines-var 2021-05-03 08:13:32 +02:00
config.make.in Add pthread-in-libc, libpthread-routines-var, librt-routines-var 2021-05-03 08:13:32 +02:00
configure Add pthread-in-libc, libpthread-routines-var, librt-routines-var 2021-05-03 08:13:32 +02:00
configure.ac Add pthread-in-libc, libpthread-routines-var, librt-routines-var 2021-05-03 08:13:32 +02:00
COPYING Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
COPYING.LIB Update to latest versions of GPL-2.0 and LGPL-2.1 2013-09-09 12:52:48 +10:00
extra-lib.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
gen-locales.mk Improve gen-locales.mk and gen-locale.sh to make test files with @ options work 2018-02-27 17:01:57 +01:00
INSTALL tst: Extend cross-test-ssh.sh to specify if target date can be altered 2021-03-08 22:37:16 +01:00
libc-abis riscv: support GNU indirect function 2021-01-10 21:25:13 -05:00
libof-iterator.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
LICENSES Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
MAINTAINERS Add MAINTAINERS 2017-05-11 13:38:30 -04:00
Makeconfig Add pthread-in-libc, libpthread-routines-var, librt-routines-var 2021-05-03 08:13:32 +02:00
Makefile Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Makefile.help Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Makefile.in New make target to only build benchmark binaries 2016-04-20 10:23:28 +05:30
Makerules Makerules: Do not require startup files for format.lds probe object 2021-01-12 12:22:47 +01:00
NEWS Add C2X timespec_getres 2021-05-17 20:55:21 +00:00
o-iterator.mk Fri Mar 17 12:58:37 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> 1995-03-17 18:42:51 +00:00
README Documentation for the RISC-V 32-bit port 2020-08-27 08:17:44 -07:00
Rules Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
shlib-versions Remove --enable-obsolete-nsl configure flag 2020-07-08 17:25:57 +02:00
test-skeleton.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
version.h Fix version.h for glibc 2.34 development 2021-02-02 08:22:25 -03:00

This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.

The GNU C Library is the standard system C library for all GNU systems,
and is an important part of what makes up a GNU system.  It provides the
system API for all programs written in C and C-compatible languages such
as C++ and Objective C; the runtime facilities of other programming
languages use the C library to access the underlying operating system.

In GNU/Linux systems, the C library works with the Linux kernel to
implement the operating system behavior seen by user applications.
In GNU/Hurd systems, it works with a microkernel and Hurd servers.

The GNU C Library implements much of the POSIX.1 functionality in the
GNU/Hurd system, using configurations i[4567]86-*-gnu.

When working with Linux kernels, this version of the GNU C Library
requires Linux kernel version 3.2 or later.

Also note that the shared version of the libgcc_s library must be
installed for the pthread library to work correctly.

The GNU C Library supports these configurations for using Linux kernels:

	aarch64*-*-linux-gnu
	alpha*-*-linux-gnu
	arc*-*-linux-gnu
	arm-*-linux-gnueabi
	csky-*-linux-gnuabiv2
	hppa-*-linux-gnu
	i[4567]86-*-linux-gnu
	x86_64-*-linux-gnu	Can build either x86_64 or x32
	ia64-*-linux-gnu
	m68k-*-linux-gnu
	microblaze*-*-linux-gnu
	mips-*-linux-gnu
	mips64-*-linux-gnu
	powerpc-*-linux-gnu	Hardware or software floating point, BE only.
	powerpc64*-*-linux-gnu	Big-endian and little-endian.
	s390-*-linux-gnu
	s390x-*-linux-gnu
	riscv32-*-linux-gnu
	riscv64-*-linux-gnu
	sh[34]-*-linux-gnu
	sparc*-*-linux-gnu
	sparc64*-*-linux-gnu

If you are interested in doing a port, please contact the glibc
maintainers; see https://www.gnu.org/software/libc/ for more
information.

See the file INSTALL to find out how to configure, build, and install
the GNU C Library.  You might also consider reading the WWW pages for
the C library at https://www.gnu.org/software/libc/.

The GNU C Library is (almost) completely documented by the Texinfo manual
found in the `manual/' subdirectory.  The manual is still being updated
and contains some known errors and omissions; we regret that we do not
have the resources to work on the manual as much as we would like.  For
corrections to the manual, please file a bug in the `manual' component,
following the bug-reporting instructions below.  Please be sure to check
the manual in the current development sources to see if your problem has
already been corrected.

Please see https://www.gnu.org/software/libc/bugs.html for bug reporting
information.  We are now using the Bugzilla system to track all bug reports.
This web page gives detailed information on how to report bugs properly.

The GNU C Library is free software.  See the file COPYING.LIB for copying
conditions, and LICENSES for notices about a few contributions that require
these additional notices to be distributed.  License copyright years may be
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