Adhemerval Zanella f5c77f78ec Remove __ASSUME_FUTEX_LOCK_PI ... This patch removes __ASSUME_FUTEX_LOCK_PI usage and assumes that kernel will correctly return if it supports or not futex_atomic_cmpxchg_inatomic. Current PI mutex code already has runtime support by calling prio_inherit_missing and returns ENOTSUP if the futex operation fails at initialization (it issues a FUTEX_UNLOCK_PI futex operation). Also, current minimum supported kernel (v3.2) will return ENOSYS if futex_atomic_cmpxchg_inatomic is not supported in the system: kernel/futex.c: 2628 long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout, 2629 u32 __user *uaddr2, u32 val2, u32 val3) 2630 { 2631 int ret = -ENOSYS, cmd = op & FUTEX_CMD_MASK; [...] 2667 case FUTEX_UNLOCK_PI: 2668 if (futex_cmpxchg_enabled) 2669 ret = futex_unlock_pi(uaddr, flags); [...] 2686 return ret; 2687 } The futex_cmpxchg_enabled is initialized by calling cmpxchg_futex_value_locked, which calls futex_atomic_cmpxchg_inatomic. For ARM futex_atomic_cmpxchg_inatomic will be either defined (if both CONFIG_CPU_USE_DOMAINS and CONFIG_SMP are not defined) or use the default generic implementation that returns ENOSYS. For m68k is uses the default generic implementation. For mips futex_atomic_cmpxchg_inatomic will return ENOSYS if cpu has no 'cpu_has_llsc' support (defined by each chip supporte inside kernel). For sparc, 32-bit kernel will just use default generic implementation, while 64-bit kernel has support. Tested on ARM (v3.8 kernel) and x86_64. * nptl/pthread_mutex_init.c [__ASSUME_FUTEX_LOCK_PI] (prio_inherit_missing): Remove define. * sysdeps/unix/sysv/linux/arm/kernel-features.h (__ASSUME_FUTEX_LOCK_PI): Likewise. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_FUTEX_LOCK_PI): Likewise. * sysdeps/unix/sysv/linux/m68k/kernel-features.h (__ASSUME_FUTEX_LOCK_PI): Likewise. * sysdeps/unix/sysv/linux/mips/kernel-features.h (__ASSUME_FUTEX_LOCK_PI): Likewise. * sysdeps/unix/sysv/linux/sparc/kernel-features.h (__ASSUME_FUTEX_LOCK_PI): Likewise.		2016-06-13 08:36:34 -03:00
..
aarch64	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
alpha	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
arm	Remove __ASSUME_FUTEX_LOCK_PI	2016-06-13 08:36:34 -03:00
bits	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
generic	Consolidate pwritev/pwritev64 implementations	2016-06-06 19:12:36 -03:00
hppa	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
i386	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
ia64	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
include/sys	…
m68k	Remove __ASSUME_FUTEX_LOCK_PI	2016-06-13 08:36:34 -03:00
microblaze	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
mips	Remove __ASSUME_FUTEX_LOCK_PI	2016-06-13 08:36:34 -03:00
net	…
netash	…
netatalk	…
netax25	…
neteconet	…
netinet	…
netipx	…
netiucv	Add missing iucv related defines.	2016-04-27 09:08:29 +02:00
netpacket	…
netrom	…
netrose	…
nfs	…
nios2	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
powerpc	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
s390	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
scsi	…
sh	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
sparc	Remove __ASSUME_FUTEX_LOCK_PI	2016-06-13 08:36:34 -03:00
sys	Add Q_GETNEXTQUOTA from Linux 4.6 to sys/quota.h.	2016-05-18 13:15:11 +00:00
tile	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
wordsize-64	Consolidate pwritev/pwritev64 implementations	2016-06-06 19:12:36 -03:00
x86	…
x86_64	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
Implies	…
Makefile	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
Versions	…
_G_config.h	…
_exit.c	…
a.out.h	…
accept.c	…
accept4.c	…
adjtime.c	…
aio_misc.h	…
aio_sigqueue.c	…
arch-fork.h	…
bind.c	…
check_native.c	network: recvmsg and sendmsg standard compliance (BZ#16919)	2016-05-25 17:39:01 -03:00
check_pf.c	network: recvmsg and sendmsg standard compliance (BZ#16919)	2016-05-25 17:39:01 -03:00
clock.c	…
clock_getcpuclockid.c	…
clock_getres.c	…
clock_gettime.c	…
clock_nanosleep.c	…
clock_settime.c	…
cmsg_nxthdr.c	…
configure	Remove linux/fanotify.h configure test.	2016-02-24 18:44:10 +00:00
configure.ac	Remove linux/fanotify.h configure test.	2016-02-24 18:44:10 +00:00
connect.c	…
createthread.c	…
default-sched.h	…
device-nrs.h	…
dl-brk.c	…
dl-execstack.c	…
dl-fxstatat64.c	…
dl-getcwd.c	…
dl-librecon.h	…
dl-openat64.c	Assume __NR_openat is always defined	2016-03-23 23:35:08 +01:00
dl-opendir.c	…
dl-origin.c	…
dl-osinfo.h	…
dl-sbrk.c	…
dl-sysdep.c	…
dl-sysdep.h	…
dl-vdso.c	…
dl-vdso.h	…
dl-writev.h	…
epoll_pwait.c	…
errqueue.h	…
eventfd_read.c	…
eventfd_write.c	…
exit-thread.h	…
faccessat.c	…
fallocate.c	…
fallocate64.c	…
fatal-prepare.h	…
fchmodat.c	…
fcntl.c	…
fd_to_filename.h	…
fexecve.c	…
fips-private.h	…
fpathconf.c	…
fstatfs64.c	…
fstatvfs.c	…
fstatvfs64.c	…
ftime.c	…
ftruncate64.c	…
futex-internal.h	…
futimens.c	Assume __NR_utimensat is always defined	2016-03-23 23:35:08 +01:00
futimes.c	…
futimesat.c	…
fxstat.c	…
fxstat64.c	…
fxstatat.c	…
fxstatat64.c	…
gai_sigqueue.c	…
getclktck.c	…
getcwd.c	…
getdents.c	Remove __ASSUME_GETDENTS64_SYSCALL.	2016-03-22 00:32:20 +00:00
getdents64.c	…
getdirentries.c	…
getdirentries64.c	…
getdtsz.c	…
gethostid.c	…
getipv4sourcefilter.c	…
getloadavg.c	…
getlogin.c	…
getlogin_r.c	…
getpagesize.c	…
getpeername.c	…
getpid.c	…
getpriority.c	…
getpt.c	…
getrlimit64.c	…
getsockname.c	…
getsockopt.c	…
getsourcefilter.c	…
getsysstats.c	…
gettimeofday.c	…
grantpt.c	…
if_index.c	…
ifaddrs.c	network: recvmsg and sendmsg standard compliance (BZ#16919)	2016-05-25 17:39:01 -03:00
ifreq.c	…
internal_statvfs.c	…
internal_statvfs64.c	…
ipc_priv.h	…
kernel-features.h	Remove __ASSUME_FUTEX_LOCK_PI	2016-06-13 08:36:34 -03:00
kernel-posix-cpu-timers.h	…
kernel-posix-timers.h	…
kernel_sigaction.h	…
kernel_stat.h	…
kernel_termios.h	…
ldd-rewrite.sed	…
lddlibc4.c	…
ldsodefs.h	Fix build with HAVE_AUX_VECTOR	2016-04-11 10:27:25 +02:00
libc_fatal.c	…
linux_fsinfo.h	…
listen.c	…
llseek.c	…
local-setxid.h	…
lowlevellock-futex.h	…
lseek64.c	…
lutimes.c	Assume __NR_utimensat is always defined	2016-03-23 23:35:08 +01:00
lxstat.c	…
lxstat64.c	…
makedev.c	…
malloc-sysdep.h	…
mmap64.c	…
mq_close.c	…
mq_getattr.c	…
mq_notify.c	…
mq_open.c	…
mq_receive.c	…
mq_send.c	…
mq_unlink.c	…
msgctl.c	…
msgget.c	…
msgrcv.c	…
msgsnd.c	…
netlink_assert_response.c	…
netlinkaccess.h	…
nice.c	…
not-cancel.h	…
nptl-signals.h	posix: New Linux posix_spawn{p} implementation	2016-03-07 11:53:47 +07:00
nscd_setup_thread.c	…
ntp_gettime.c	…
ntp_gettimex.c	…
open64.c	…
openat.c	…
openat64.c	…
opendir.c	…
opensock.c	…
pathconf.c	…
pathconf.h	…
paths.h	…
personality.c	…
posix_fadvise.c	…
posix_fadvise64.c	…
posix_fallocate.c	…
posix_fallocate64.c	…
posix_madvise.c	…
ppoll.c	Remove __ASSUME_PPOLL.	2016-03-15 21:11:07 +00:00
pread.c	Consolidate pread/pread64 implementations	2016-04-11 10:08:01 -03:00
pread64.c	Consolidate pread/pread64 implementations	2016-04-11 10:08:01 -03:00
preadv.c	Consolidate preadv/preadv64 implementation	2016-06-06 19:12:36 -03:00
preadv64.c	Consolidate preadv/preadv64 implementation	2016-06-06 19:12:36 -03:00
prlimit.c	…
prof-freq.c	…
profil.c	…
pselect.c	…
pt-raise.c	…
pthread-pids.h	…
pthread_getaffinity.c	…
pthread_getcpuclockid.c	…
pthread_getname.c	…
pthread_kill.c	…
pthread_setaffinity.c	…
pthread_setname.c	…
pthread_sigmask.c	…
pthread_sigqueue.c	…
ptrace.c	…
ptsname.c	…
pwrite.c	Consolidate pwrite/pwrite64 implementations	2016-04-11 10:08:01 -03:00
pwrite64.c	Consolidate pwrite/pwrite64 implementations	2016-04-11 10:08:01 -03:00
pwritev.c	Consolidate pwritev/pwritev64 implementations	2016-06-06 19:12:36 -03:00
pwritev64.c	Consolidate pwritev/pwritev64 implementations	2016-06-06 19:12:36 -03:00
raise.c	…
readahead.c	…
readdir64.c	…
readdir64_r.c	…
readonly-area.c	…
reboot.c	…
recv.c	…
recvfrom.c	…
recvmmsg.c	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
recvmsg.c	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
remove.c	…
sa_len.c	…
safe-fatal.h	…
sched_getaffinity.c	…
sched_getcpu.c	…
sched_setaffinity.c	…
segfault.c	…
semctl.c	…
semget.c	…
semop.c	…
semtimedop.c	…
send.c	…
sendmmsg.c	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
sendmsg.c	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
sendto.c	…
setegid.c	…
seteuid.c	…
setgid.c	…
setgroups.c	…
sethostid.c	…
setipv4sourcefilter.c	…
setregid.c	…
setresgid.c	…
setresuid.c	…
setreuid.c	…
setrlimit64.c	…
setsockopt.c	…
setsourcefilter.c	…
setuid.c	…
shlib-versions	…
shm-directory.c	…
shmat.c	…
shmctl.c	…
shmdt.c	…
shmget.c	…
shutdown.c	…
sigaction.c	…
siglist.h	…
signal.c	…
signalfd.c	Remove __ASSUME_SIGNALFD4.	2016-03-21 16:30:05 +00:00
sigpending.c	…
sigprocmask.c	…
sigqueue.c	…
sigreturn.c	…
sigset-cvt-mask.h	…
sigstack.c	…
sigsuspend.c	…
sigtimedwait.c	…
sigwait.c	…
sigwaitinfo.c	…
sizes.h	…
socket.c	…
socketcall.h	…
socketpair.c	…
spawni.c	posix: Call _exit in failure case for posix_spawn{p} (BZ#20178)	2016-05-30 10:56:01 -03:00
speed.c	…
statfs64.c	…
statvfs.c	…
statvfs64.c	…
sync_file_range.c	…
syscalls.list	Remove __ASSUME_EVENTFD2, move eventfd to syscalls.list.	2016-03-17 19:07:39 +00:00
sysconf.c	…
sysctl.c	…
sysctl.mk	…
sysdep-vdso.h	…
sysdep.h	Fix pread consolidation on ports that require argument alignment	2016-04-14 16:49:40 -03:00
syslog.c	…
system.c	…
tcdrain.c	…
tcflow.c	…
tcflush.c	…
tcgetattr.c	…
tcgetpgrp.c	…
tcsendbrk.c	…
tcsetattr.c	…
tcsetpgrp.c	…
termio.h	…
time.c	…
timer_create.c	…
timer_delete.c	…
timer_getoverr.c	…
timer_gettime.c	…
timer_routines.c	…
timer_settime.c	…
times.c	…
timespec_get.c	…
truncate64.c	…
tst-affinity-pid.c	…
tst-affinity.c	…
tst-align-clone.c	…
tst-clone.c	…
tst-clone2.c	Fix clone (CLONE_VM) pid/tid reset (BZ#19957)	2016-04-29 18:19:30 -03:00
tst-fanotify.c	Remove linux/fanotify.h configure test.	2016-02-24 18:44:10 +00:00
tst-getpid1.c	…
tst-personality.c	…
tst-setgetname.c	…
tst-skeleton-affinity.c	…
tst-skeleton-thread-affinity.c	…
tst-thread-affinity-pthread.c	…
tst-thread-affinity-pthread2.c	…
tst-thread-affinity-sched.c	…
ttyname.c	…
ttyname_r.c	…
ualarm.c	…
umount.S	…
umount2.S	…
unlockpt.c	…
updwtmp.c	…
ustat.c	…
utimensat.c	Assume __NR_utimensat is always defined	2016-03-23 23:35:08 +01:00
utimes.c	…
utmp_file.c	…
vfork.c	…
wait.c	Remove union wait [BZ #19613]	2016-04-14 08:54:57 +02:00
wait3.c	…
waitid.c	…
waitpid.c	…
xmknod.c	…
xmknodat.c	…
xstat.c	…
xstat64.c	…
xstatconv.c	…
xstatconv.h	…