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Adhemerval Zanella e442e40de5 io: Consolidate lockf implementation
With internal fcntl64 internal (commit 06ab719d), it is possible to
consolidate lockf implementation by using the LFS fcntl interface
instead of using arch and system-specific implementations.

For Linux, the i386 implementation is used as generic implementation
by replacing the direct syscall with fcntl64 call.  The LFS symbol
alias for default LFS ABI (__OFF_T_MATCHES_OFF64_T) is used to avoid
the duplicate symbol (instead of overriding the implementation with an
empty file).

For Hurd lockf64 semantic is changed: previous generic lockf64
implementation returned EOVERFLOW if LEN input is larger than 32-bit
off_t.  However, Hurd fcntl64 implementation for F_GETLK64, F_SETLK64,
and F_SETLKW64 do accept off64_t inputs (__f_setlk accepts only off64_t
inputs).

Checked on i686-linux-gnu and x86_64-linux-gnu along with a i686-gnu
build.

	* io/Makefile (tests): Add tst-lockf.
	* io/lockf.c (lockf): Use __fcntl and only define for
	!__OFF_T_MATCHES_OFF64_T.
	* io/lockf64.c (__lockf64): Call __fcntl64 and alias to lockf for
	__OFF_T_MATCHES_OFF64_T case.
	* io/tst-lockf.c: New file.
	* sysdeps/unix/sysv/linux/i386/lockf64.c: Remove file.
	* sysdeps/unix/sysv/linux/arm/lockf64.c: Likewise.
	* sysdeps/unix/sysv/linux/m68k/lockf64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/lockf64.c: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/n32/lockf64.c: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/lockf64.c: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/lockf64.c: Likewise.
	* sysdeps/unix/sysv/linux/sh/lockf64.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/lockf64.c: Likewise.
2019-02-15 18:45:39 -02:00
argp Fix a few typos in comments 2019-01-12 13:44:51 +00:00
assert Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
benchtests Add missing bench-malloc-simple.c file. 2019-02-14 17:10:47 +00:00
bits math: Enable <bits/math-finite.h> sysdeps override 2019-02-08 21:06:51 +01:00
catgets Fix -Wempty-body warnings in glibc. 2019-02-13 13:50:13 +00:00
ChangeLog.old Add missing reference to bug 21654 2017-10-07 13:14:36 +02:00
conform Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
crypt Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
csu Update copyright dates not handled by scripts/update-copyrights. 2019-01-01 00:15:13 +00:00
ctype Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
debug libio: Use stdin consistently for input functions [BZ #24153] 2019-02-03 09:38:24 +01:00
dirent Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dlfcn Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
elf RISC-V: Fix elfutils testsuite unwind failures. 2019-02-13 14:25:00 -08:00
gmon Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
gnulib Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
grp Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
gshadow Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
hesiod Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
htl Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
hurd hurd: Fix initial sigaltstack state 2019-01-24 19:27:00 +01:00
iconv Update copyright dates not handled by scripts/update-copyrights. 2019-01-01 00:15:13 +00:00
iconvdata Adjust wording of two fall-through comments. 2019-02-13 18:37:54 +00:00
include Fix -Wempty-body warnings in glibc. 2019-02-13 13:50:13 +00:00
inet Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
intl intl: Do not return NULL on asprintf failure in gettext [BZ #24018] 2019-01-02 16:26:58 +01:00
io io: Consolidate lockf implementation 2019-02-15 18:45:39 -02:00
libio Fix -Wempty-body warnings in glibc. 2019-02-13 13:50:13 +00:00
locale Add fall-through comments. 2019-02-12 10:30:34 +00:00
localedata en_US: define date_fmt (bug 24046) 2019-01-07 14:51:13 +01:00
login Update copyright dates not handled by scripts/update-copyrights. 2019-01-01 00:15:13 +00:00
mach Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
malloc Avoid "inline" after return type in function definitions. 2019-02-06 17:16:43 +00:00
manual Linux: Add gettid system call wrapper [BZ #6399] 2019-02-08 11:27:55 +01:00
math math: Enable <bits/math-finite.h> sysdeps override 2019-02-08 21:06:51 +01:00
mathvec Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
misc Add fall-through comments. 2019-02-12 10:30:34 +00:00
nis Adjust wording of two fall-through comments. 2019-02-13 18:37:54 +00:00
nptl nptl: Fix invalid Systemtap probe in pthread_join [BZ #24211] 2019-02-15 19:09:00 +01:00
nptl_db Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
nscd Remove duplicate initialization of field in nscd. 2019-02-04 14:49:37 +00:00
nss nss: getent: Print IPv6 scope ID for ahosts/ahostsv6 if available 2019-02-12 14:26:20 +01:00
po Update translations 2019-01-25 22:05:42 +05:30
posix Add fall-through comments. 2019-02-12 10:30:34 +00:00
pwd Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
resolv Add fall-through comments. 2019-02-12 10:30:34 +00:00
resource Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
rt rt: Turn forwards from librt to libc into compat symbols [BZ #24194] 2019-02-08 10:43:17 +01:00
scripts Avoid readline conflicts in pexpect 2019-02-14 16:28:03 -05:00
setjmp Fix implicit-fallthrough warnings in tst-setjmp.c. 2019-02-15 13:44:17 +00:00
shadow Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
signal Disable lazy binding on tests for minimal signal handler 2019-01-18 08:56:51 -08:00
socket Fix a few typos in comments 2019-01-12 13:44:51 +00:00
soft-fp soft-fp: Properly check _FP_W_TYPE_SIZE [BZ #24066] 2019-01-07 09:04:39 -08:00
stdio-common Use C99-compliant scanf under _GNU_SOURCE with modern compilers. 2019-01-03 11:12:39 -05:00
stdlib testsuite: stdlib/isomac.c: add missing include 2019-02-03 15:17:18 +01:00
streams Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
string Only build libm with -fno-math-errno (bug 24024) 2019-01-07 14:59:07 +01:00
sunrpc Remove qualifier from function return type in tst-svc_register.c. 2019-02-15 13:45:19 +00:00
support Avoid fall-through in test-container if execlp fails. 2019-02-13 13:34:24 +00:00
sysdeps io: Consolidate lockf implementation 2019-02-15 18:45:39 -02:00
sysvipc Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
termios Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
time Fix a few whitespace arrangement inconsistencies in time/strftime_l.c 2019-02-11 12:13:55 +09:00
timezone Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
wcsmbs Fix handling of collating elements in fnmatch (bug 17396, bug 16976) 2019-02-04 15:45:02 +01:00
wctype Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
.gitattributes Assume __NR_openat is always defined 2016-03-23 23:35:08 +01:00
.gitignore
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
ChangeLog io: Consolidate lockf implementation 2019-02-15 18:45:39 -02:00
config.h.in Add C-SKY port 2018-12-21 09:48:04 +08:00
config.make.in Fix ifunc support with DT_TEXTREL segments (BZ#20480) 2018-09-25 16:27:50 -03:00
configure Require GCC 6.2 or later to build glibc. 2019-02-01 16:27:44 +00:00
configure.ac Require GCC 6.2 or later to build glibc. 2019-02-01 16:27:44 +00:00
COPYING
COPYING.LIB
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 Require GCC 6.2 or later to build glibc. 2019-02-01 16:27:44 +00:00
libc-abis libc-abis: Define ABSOLUTE ABI [BZ #19818][BZ #23307] 2018-07-05 18:06:43 +01:00
libof-iterator.mk Rename cppflags-iterator.mk to libof-iterator.mk, remove extra-modules.mk. 2017-05-09 07:06:29 -04:00
LICENSES stdio-common/tst-printf.c: Remove part under a non-free license [BZ #23363] 2018-07-03 18:29:16 +02:00
MAINTAINERS Add MAINTAINERS 2017-05-11 13:38:30 -04:00
Makeconfig Only build libm with -fno-math-errno (bug 24024) 2019-01-07 14:59:07 +01:00
Makefile testrun.sh: Exit in case of incorrect argument 2019-02-04 13:06:15 +01:00
Makefile.in New make target to only build benchmark binaries 2016-04-20 10:23:28 +05:30
Makerules Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
NEWS Linux: Add gettid system call wrapper [BZ #6399] 2019-02-08 11:27:55 +01:00
o-iterator.mk
README Add C-SKY port 2018-12-21 09:48:04 +08:00
Rules Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
shlib-versions Extend NSS test suite 2017-07-17 15:52:44 -04:00
test-skeleton.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
version.h Open master for 2.30 development 2019-01-31 22:39:14 +05:30

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
	arm-*-linux-gnueabi
	csky-*-linux-gnuabiv2
	hppa-*-linux-gnu
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	powerpc64*-*-linux-gnu	Big-endian and little-endian.
	s390-*-linux-gnu
	s390x-*-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
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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
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The GNU C Library is (almost) completely documented by the Texinfo manual
found in the `manual/' subdirectory.  The manual is still being updated
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