oss/uclibc-ng: Embedded C library @ f418f52701de02954c90341e5c9ccdd3f07ccd33

Peter S. Mazinger f418f52701 errno, h_errno: correct them for non-TLS		13 سال پیش
..
bits	f418f52701 errno, h_errno: correct them for non-TLS	12 سال پیش
sys	64572a51b0 add epoll_pwait()	12 سال پیش
.indent.pro	87108d9ffa Fix up stat so we translate from kernel stat to libc stat. Try to fix	24 سال پیش
Makefile	ba31c6c463 Remove TOPDIR	19 سال پیش
Makefile.in	19dd090a0f libc: flesh out linux scheduler functions	13 سال پیش
__rt_sigtimedwait.c	5fce95b146 no need for hidden sigtimedwait	12 سال پیش
__rt_sigwaitinfo.c	3c3f899b6d remove unneeded hidden sigwaitinfo	12 سال پیش
__socketcall.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
__syscall_fcntl.c	5ebef43369 provide internal hidden version of __fcntl_nocancel	13 سال پیش
__syscall_fcntl64.c	3d6648de14 remove __libc_fcntl[64]	16 سال پیش
__syscall_rt_sigaction.c	27fbcf79bc signal.h: move prototypes for __syscall_[rt_]sigaction to common place	12 سال پیش
__syscall_sigaction.c	27fbcf79bc signal.h: move prototypes for __syscall_[rt_]sigaction to common place	12 سال پیش
_exit.c	f757db2d31 Merge remote branch 'origin/master' into nptl_merge	15 سال پیش
access.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
acct.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
adjtimex.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
alarm.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
arch_prctl.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
bdflush.c	73d5955414 unify stub logic	13 سال پیش
brk.c	6ff6eb1350 create arch-generic brk() based on blackfin one	16 سال پیش
capget.c	73d5955414 unify stub logic	13 سال پیش
capset.c	73d5955414 unify stub logic	13 سال پیش
chdir.c	f0e0d954f2 chdir.c: simplify code	12 سال پیش
chmod.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
chown.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
chroot.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
clock_getres.c	f486c8ba61 clock_getres.c: include unistd.h unless syscall is defined	12 سال پیش
clock_gettime.c	95b2df38cb clock_{g,s}ettime.c,{create,delete}_module.c: cleanup	12 سال پیش
clock_settime.c	95b2df38cb clock_{g,s}ettime.c,{create,delete}_module.c: cleanup	12 سال پیش
close.c	147041d260 Reinstate __libc_foo's needed for linuxthreads.old.	15 سال پیش
cmsg_nxthdr.c	1533e2876b remove __FORCE_GLIBC	12 سال پیش
creat.c	74cc326ef4 Update copyright header.	15 سال پیش
creat64.c	43ef9c6b3f *: remove some __libc_XXX functions:	16 سال پیش
create_module.c	95b2df38cb clock_{g,s}ettime.c,{create,delete}_module.c: cleanup	12 سال پیش
delete_module.c	95b2df38cb clock_{g,s}ettime.c,{create,delete}_module.c: cleanup	12 سال پیش
dl-osinfo.h	b534100aaa dl-osinfo.h: include needed headers	12 سال پیش
dup.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
dup2.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
epoll.c	64572a51b0 add epoll_pwait()	12 سال پیش
eventfd.c	e118373cbb eventfd: Implement eventfd2 and fix eventfd	12 سال پیش
execve.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
faccessat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
fchdir.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
fchmod.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
fchmodat.c	577c6ee118 fchmodat: fix handling of flags	12 سال پیش
fchown.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
fchownat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
fdatasync.c	73d5955414 unify stub logic	13 سال پیش
flock.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
fork.c	b91a7f431d cleanup fork()	12 سال پیش
fpu_control.h	cf4b06dc8c fix from psm: disable unsupported features	18 سال پیش
fstat.c	ae0e6225db lstat/stat/fstat: Use 64bit version of syscall if available	12 سال پیش
fstat64.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
fstatat.c	656167d891 fstatat: fix up behavior on 32/64 bit hosts	15 سال پیش
fstatat64.c	656167d891 fstatat: fix up behavior on 32/64 bit hosts	15 سال پیش
fstatfs.c	c9209d6f90 - hide __libc_{f,}statfs. Thanks to Peter S. Mazinger for mentioning this fact.	16 سال پیش
fsync.c	57e8823548 cancellation support for a large amount of the required syscalls	15 سال پیش
ftruncate.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
ftruncate64.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
futimens.c	bd33c42e0f futimens: add missing local prototype	14 سال پیش
futimesat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
get_kernel_syms.c	73d5955414 unify stub logic	13 سال پیش
getcwd.c	e48bd60ce9 getcwd: Fix memory-leak in error path	13 سال پیش
getdents.c	329befa261 dirent.h: use __ssize_t instead of ssize_t	12 سال پیش
getdents64.c	329befa261 dirent.h: use __ssize_t instead of ssize_t	12 سال پیش
getdirname.c	93f8a2e834 convert // comments to /**/; remove empty #if/#endif pairs. no code changes	15 سال پیش
getdomainname.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
getdtablesize.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
getegid.c	83c1854b97 remove error handling from some syscalls	13 سال پیش
geteuid.c	83c1854b97 remove error handling from some syscalls	13 سال پیش
getgid.c	83c1854b97 remove error handling from some syscalls	13 سال پیش
getgroups.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
gethostname.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
getitimer.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
getpagesize.c	fee4034763 getpagesize.c, unistd.h: hide __pagesize	12 سال پیش
getpgid.c	2d276198b4 libc: Provide both getpgid and __getpgid symbols	14 سال پیش
getpgrp.c	9f096becc4 getpgrp: fix fallback handling	12 سال پیش
getpid.c	83c1854b97 remove error handling from some syscalls	13 سال پیش
getppid.c	83c1854b97 remove error handling from some syscalls	13 سال پیش
getpriority.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
getresgid.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
getresuid.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
getrlimit.c	916229f02c __xpg_strerror_r.c, {ge,se}trlimit.c: use strong_alias_untyped	12 سال پیش
getrlimit64.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
getrusage.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
getsid.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
gettimeofday.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
getuid.c	83c1854b97 remove error handling from some syscalls	13 سال پیش
hp-timing.h	9c4d060ea4 grab header file from glibc	19 سال پیش
init_module.c	73d5955414 unify stub logic	13 سال پیش
inotify.c	0f45e8a279 inotify_rm_watch: Change second argument to int	12 سال پیش
ioctl.c	57e8823548 cancellation support for a large amount of the required syscalls	15 سال پیش
ioperm.c	02c9f0d6e8 remove libc_hidden_proto(ioperm) from all headers except arm	12 سال پیش
iopl.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
jmpbuf-offsets.h	0078a92e39 add jmpbuf-offsets.h and jmpbuf-unwind.h for all archs (LT related)	12 سال پیش
kill.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
klogctl.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
lchown.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
libgcc_s.h	a68b6d339b Add missing libgcc_s.h header.	14 سال پیش
link.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
linkat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
llseek.c	7bad8cf68b llseek: support __NR_llseek syscall	12 سال پیش
longjmp.c	8f86b8a197 move *longjmp related prototypes to setjmp.h	12 سال پیش
lseek.c	147041d260 Reinstate __libc_foo's needed for linuxthreads.old.	15 سال پیش
lstat.c	ae0e6225db lstat/stat/fstat: Use 64bit version of syscall if available	12 سال پیش
lstat64.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
lutimes.c	251f2266bf lutimes.c, stubs.c: fix compiling lutimes, if __NR_utimensat is not defined	13 سال پیش
madvise.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
mincore.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
mkdir.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
mkdirat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
mkfifo.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
mkfifoat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
mknod.c	5590ebbd36 mknod: convert to INLINE_SYSCALL() to sync with glibc	15 سال پیش
mknodat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
mlock.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
mlockall.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
mmap.c	2b836fc1d5 mmap.c: provide a common mmap.c that is good for most of archs	12 سال پیش
mmap64.c	b713a0b26f mmap64: Use correct type for offset parameter	12 سال پیش
modify_ldt.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
mount.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
mprotect.c	9889c8791b enable mprotect() regardless of MMU as some systems have MPUs which allows memory protection	15 سال پیش
mremap.c	3e8067a627 deal with TODOs left over from libc_hidden_proto removal	16 سال پیش
msync.c	57e1e47345 msync: skip if syscall is missing	14 سال پیش
munlock.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
munlockall.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
munmap.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
nanosleep.c	fcde46eae5 nanosleep.c: remove duplicated libc_hidden_proto	13 سال پیش
nice.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
noophooks.c	5d39c1ed76 do not include libc-internal.h	12 سال پیش
not-cancel.h	94f3c30dc2 Assorted fixed to get nptl compiling on ARM	14 سال پیش
ntp_gettime.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
open.c	e190a24231 Define creat in an independent file	15 سال پیش
open64.c	57e8823548 cancellation support for a large amount of the required syscalls	15 سال پیش
openat.c	fc0cc43885 add hidden aliases for openat funcs	15 سال پیش
openat64.c	fc0cc43885 add hidden aliases for openat funcs	15 سال پیش
pause.c	162cfaea20 *: inline constant __sig{add,del}set and __sigismember	14 سال پیش
personality.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
pipe.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
pipe2.c	d3ddb92ea0 add pipe2()	13 سال پیش
pivot_root.c	73d5955414 unify stub logic	13 سال پیش
poll.c	ba3aaf137c poll.c: fix incorrect merge	14 سال پیش
posix_fadvise.c	899a273126 stubs: unified from future	12 سال پیش
posix_fadvise64.c	899a273126 stubs: unified from future	12 سال پیش
ppoll.c	4b88e6e858 libc: Fix cancellation handling in some C functions	14 سال پیش
prctl.c	df1580676a prctl: silence shadow warnings	14 سال پیش
pread_write.c	80c9bfc466 pread/pwrite: drop fallback funcs	12 سال پیش
pselect.c	57e8823548 cancellation support for a large amount of the required syscalls	15 سال پیش
ptrace.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
query_module.c	73d5955414 unify stub logic	13 سال پیش
quotactl.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
read.c	147041d260 Reinstate __libc_foo's needed for linuxthreads.old.	15 سال پیش
readahead.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
readlink.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
readlinkat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
readv.c	57e8823548 cancellation support for a large amount of the required syscalls	15 سال پیش
reboot.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
remap_file_pages.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
rename.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
renameat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
rmdir.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
sbrk.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
sched_cpucount.c	19dd090a0f libc: flesh out linux scheduler functions	13 سال پیش
sched_get_priority_max.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
sched_get_priority_min.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
sched_getaffinity.c	73d5955414 unify stub logic	13 سال پیش
sched_getcpu.c	19dd090a0f libc: flesh out linux scheduler functions	13 سال پیش
sched_getparam.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
sched_getscheduler.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
sched_rr_get_interval.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
sched_setaffinity.c	73d5955414 unify stub logic	13 سال پیش
sched_setparam.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
sched_setscheduler.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
sched_yield.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
select.c	13433395f2 silence some warnings about missing prototypes	14 سال پیش
sendfile.c	f5773054ef fix breakage in x86_64 defconfig	15 سال پیش
sendfile64.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
setdomainname.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
setegid.c	2f88f917c2 setegid: use setresgid conditionally	13 سال پیش
seteuid.c	7aa9c2486c remove a few more empty #if/#endif pairs	15 سال پیش
setfsgid.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
setfsuid.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
setgid.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
setgroups.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
sethostname.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
setitimer.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setpgid.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setpgrp.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setpriority.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setregid.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setresgid.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setresuid.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setreuid.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setrlimit.c	916229f02c __xpg_strerror_r.c, {ge,se}trlimit.c: use strong_alias_untyped	12 سال پیش
setrlimit64.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setsid.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
settimeofday.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
setuid.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
sigaltstack.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
signalfd.c	73d5955414 unify stub logic	13 سال پیش
sigpending.c	fc44a577aa - trim superfluous ';'. No objcode changes	16 سال پیش
sigprocmask.c	57e8823548 cancellation support for a large amount of the required syscalls	15 سال پیش
sigqueue.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
sigsuspend.c	1dd9275091 remove trailing ';' from _syscallX()	13 سال پیش
splice.c	73d5955414 unify stub logic	13 سال پیش
ssp-local.c	0dd1ccafa7 libc-internal.h: use a consistent prototype for __stack_chk_fail	12 سال پیش
ssp.c	0dd1ccafa7 libc-internal.h: use a consistent prototype for __stack_chk_fail	12 سال پیش
stat.c	ae0e6225db lstat/stat/fstat: Use 64bit version of syscall if available	12 سال پیش
stat64.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
statfs.c	0f85b228aa nptl: Fix libpthread build when UCLIBC_LINUX_SPECIFIC is disabled	14 سال پیش
stime.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
stubs.c	e118373cbb eventfd: Implement eventfd2 and fix eventfd	12 سال پیش
swapoff.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
swapon.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
symlink.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
symlinkat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
sync.c	6c70a940b4 drop missing {INLINE,INTERNAL}_SYSCALL fallback logic	15 سال پیش
sync_file_range.c	73d5955414 unify stub logic	13 سال پیش
syscall.c	c06402cccc syscall(): create a common version based on INLINE_SYSCALL_NCS()	15 سال پیش
syscalls.h	eb813ecafa bits/kernel_stat.h is for internal uClibc use only, fix a few other	18 سال پیش
sysctl.c	8a2d6677c3 silence warning about implicit decl of sysctl	14 سال پیش
sysdep.h	be88a80858 nptl:arm: add a wrapper for .cfi_sections pseudo-ops	13 سال پیش
sysfs.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
sysinfo.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
tee.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
time.c	779c35b7c4 time,times: stop interpreting negative return values ar errors	14 سال پیش
timerfd.c	cdeb75380c add timerfd syscall and header	15 سال پیش
times.c	779c35b7c4 time,times: stop interpreting negative return values ar errors	14 سال پیش
truncate.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
truncate64.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
ulimit.c	1b6c5c4f32 libc: do not rely upon ulimit kernel syscall.	13 سال پیش
umask.c	83c1854b97 remove error handling from some syscalls	13 سال پیش
umount.c	73d5955414 unify stub logic	13 سال پیش
umount2.c	73d5955414 unify stub logic	13 سال پیش
uname.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
unlink.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
unlinkat.c	fd72e30425 first pass at implementing *at funcs	15 سال پیش
unshare.c	19dd090a0f libc: flesh out linux scheduler functions	13 سال پیش
unwind.h	71d63ed756 unwind.h: Move to libc/sysdeps from nptl sysdeps	13 سال پیش
uselib.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
ustat.c	7f5cc205a7 mknod: widen the parameters to match kernel	15 سال پیش
utime.c	8f1ba5cd4f utime.c,utimes.c: include headers only when needed	12 سال پیش
utimensat.c	ef85033ac8 futimens: add function	15 سال پیش
utimes.c	8f1ba5cd4f utime.c,utimes.c: include headers only when needed	12 سال پیش
vfork.c	711ad9f92c create real common vfork() function	15 سال پیش
vhangup.c	ae549acff0 - remove superfluous ';'. No objcode changes.	16 سال پیش
vmsplice.c	73d5955414 unify stub logic	13 سال پیش
wait.c	13433395f2 silence some warnings about missing prototypes	14 سال پیش
wait3.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
wait4.c	21730caa66 trim Experimentally off and uncommented hidden	15 سال پیش
waitid.c	4b88e6e858 libc: Fix cancellation handling in some C functions	14 سال پیش
waitpid.c	57e8823548 cancellation support for a large amount of the required syscalls	15 سال پیش
write.c	147041d260 Reinstate __libc_foo's needed for linuxthreads.old.	15 سال پیش
writev.c	57e8823548 cancellation support for a large amount of the required syscalls	15 سال پیش
xattr.c	73d5955414 unify stub logic	13 سال پیش
xstatconv.c	656167d891 fstatat: fix up behavior on 32/64 bit hosts	15 سال پیش
xstatconv.h	656167d891 fstatat: fix up behavior on 32/64 bit hosts	15 سال پیش