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authorRoland McGrath <roland@hack.frob.com>2014-06-26 09:31:11 -0700
committerRoland McGrath <roland@hack.frob.com>2014-06-26 09:31:11 -0700
commit52ae23b4bfa09fa1f42e3f659aaa057d1176d06b (patch)
tree7c61e56d7fbbb3c9f82994b5d3d778cc19ee48c2 /nptl
parent39507e4a6c52d67780d194dae8cfb636e2dbb87e (diff)
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Move remaining S390 code out of nptl/.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/Makefile10
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/Versions5
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/elision-conf.c82
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/elision-conf.h44
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/elision-lock.c119
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/elision-timed.c26
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/elision-trylock.c94
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/elision-unlock.c38
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/force-elision.h33
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/jmp-unwind.c39
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h390
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/pt-longjmp.c63
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_cond_lock.c22
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_lock.c22
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_timedlock.c22
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_trylock.c22
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/pthread_once.c110
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h139
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/s390-64/Versions7
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h152
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c1
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c1
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_getoverr.c1
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_gettime.c1
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c1
25 files changed, 0 insertions, 1444 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/Makefile b/nptl/sysdeps/unix/sysv/linux/s390/Makefile
deleted file mode 100644
index 269832f999..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-ifeq ($(enable-lock-elision),yes)
-libpthread-sysdep_routines += elision-lock elision-unlock elision-timed \
- elision-trylock
-
-elision-CFLAGS = -mhtm
-CFLAGS-elision-lock.c = $(elision-CFLAGS)
-CFLAGS-elision-timed.c = $(elision-CFLAGS)
-CFLAGS-elision-trylock.c = $(elision-CFLAGS)
-CFLAGS-elision-unlock.c = $(elision-CFLAGS)
-endif
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/Versions b/nptl/sysdeps/unix/sysv/linux/s390/Versions
deleted file mode 100644
index 58632f467a..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/Versions
+++ /dev/null
@@ -1,5 +0,0 @@
-libpthread {
- GLIBC_2.19 {
- longjmp; siglongjmp;
- }
-}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/elision-conf.c b/nptl/sysdeps/unix/sysv/linux/s390/elision-conf.c
deleted file mode 100644
index 69c04836ed..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/elision-conf.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/* Lock elision tunable parameters.
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <config.h>
-#include <pthreadP.h>
-#include <elision-conf.h>
-#include <unistd.h>
-#include <dl-procinfo.h>
-
-/* Reasonable initial tuning values, may be revised in the future.
- This is a conservative initial value. */
-
-struct elision_config __elision_aconf =
- {
- /* How often to not attempt to use elision if a transaction aborted
- because the lock is already acquired. Expressed in number of lock
- acquisition attempts. */
- .skip_lock_busy = 3,
- /* How often to not attempt to use elision if a transaction aborted due
- to reasons other than other threads' memory accesses. Expressed in
- number of lock acquisition attempts. */
- .skip_lock_internal_abort = 3,
- /* How often to not attempt to use elision if a lock used up all retries
- without success. Expressed in number of lock acquisition attempts. */
- .skip_lock_out_of_tbegin_retries = 3,
- /* How often we try using elision if there is chance for the transaction
- to finish execution (e.g., it wasn't aborted due to the lock being
- already acquired. */
- .try_tbegin = 3,
- /* Same as SKIP_LOCK_INTERNAL_ABORT but for trylock. */
- .skip_trylock_internal_abort = 3,
- };
-
-/* Force elision for all new locks. This is used to decide whether existing
- DEFAULT locks should be automatically upgraded to elision in
- pthread_mutex_lock(). Disabled for suid programs. Only used when elision
- is available. */
-
-int __pthread_force_elision attribute_hidden = 0;
-
-/* Initialize elison. */
-
-static void
-elision_init (int argc __attribute__ ((unused)),
- char **argv __attribute__ ((unused)),
- char **environ)
-{
- /* Set when the CPU and the kernel supports transactional execution.
- When false elision is never attempted. */
- int elision_available = (GLRO (dl_hwcap) & HWCAP_S390_TE) ? 1 : 0;
-
- __pthread_force_elision = __libc_enable_secure ? 0 : elision_available;
-}
-
-#ifdef SHARED
-# define INIT_SECTION ".init_array"
-# define MAYBE_CONST
-#else
-# define INIT_SECTION ".preinit_array"
-# define MAYBE_CONST const
-#endif
-
-void (*MAYBE_CONST __pthread_init_array []) (int, char **, char **)
- __attribute__ ((section (INIT_SECTION), aligned (sizeof (void *)))) =
-{
- &elision_init
-};
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/elision-conf.h b/nptl/sysdeps/unix/sysv/linux/s390/elision-conf.h
deleted file mode 100644
index d9e97947a0..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/elision-conf.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* Lock elision tunable parameters.
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-#ifdef ENABLE_LOCK_ELISION
-#ifndef _ELISION_CONF_H
-#define _ELISION_CONF_H 1
-
-#include <pthread.h>
-#include <time.h>
-
-/* Should make sure there is no false sharing on this. */
-
-struct elision_config
-{
- int skip_lock_busy;
- int skip_lock_internal_abort;
- int skip_lock_out_of_tbegin_retries;
- int try_tbegin;
- int skip_trylock_internal_abort;
-};
-
-extern struct elision_config __elision_aconf attribute_hidden;
-
-extern int __pthread_force_elision attribute_hidden;
-
-/* Tell the test suite to test elision for this architecture. */
-#define HAVE_ELISION 1
-
-#endif
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/elision-lock.c b/nptl/sysdeps/unix/sysv/linux/s390/elision-lock.c
deleted file mode 100644
index ba5338fbb9..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/elision-lock.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/* Elided pthread mutex lock.
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <pthread.h>
-#include <pthreadP.h>
-#include <lowlevellock.h>
-#include <htmintrin.h>
-#include <elision-conf.h>
-#include <stdint.h>
-
-#if !defined(LLL_LOCK) && !defined(EXTRAARG)
-/* Make sure the configuration code is always linked in for static
- libraries. */
-#include "elision-conf.c"
-#endif
-
-#ifndef EXTRAARG
-#define EXTRAARG
-#endif
-#ifndef LLL_LOCK
-#define LLL_LOCK(a,b) lll_lock(a,b), 0
-#endif
-
-#define aconf __elision_aconf
-
-/* Adaptive lock using transactions.
- By default the lock region is run as a transaction, and when it
- aborts or the lock is busy the lock adapts itself. */
-
-int
-__lll_lock_elision (int *futex, short *adapt_count, EXTRAARG int private)
-{
- if (*adapt_count > 0)
- {
- /* Lost updates are possible, but harmless. Due to races this might lead
- to *adapt_count becoming less than zero. */
- (*adapt_count)--;
- goto use_lock;
- }
-
- __asm__ volatile (".machinemode \"zarch_nohighgprs\"\n\t"
- ".machine \"all\""
- : : : "memory");
-
- int try_tbegin;
- for (try_tbegin = aconf.try_tbegin;
- try_tbegin > 0;
- try_tbegin--)
- {
- unsigned status;
- if (__builtin_expect
- ((status = __builtin_tbegin((void *)0)) == _HTM_TBEGIN_STARTED, 1))
- {
- if (*futex == 0)
- return 0;
- /* Lock was busy. Fall back to normal locking. */
- if (__builtin_expect (__builtin_tx_nesting_depth (), 1))
- {
- /* In a non-nested transaction there is no need to abort,
- which is expensive. */
- __builtin_tend ();
- if (aconf.skip_lock_busy > 0)
- *adapt_count = aconf.skip_lock_busy;
- goto use_lock;
- }
- else /* nesting depth is > 1 */
- {
- /* A nested transaction will abort eventually because it
- cannot make any progress before *futex changes back to 0.
- So we may as well abort immediately.
- This persistently aborts the outer transaction to force
- the outer mutex use the default lock instead of retrying
- with transactions until the try_tbegin of the outer mutex
- is zero.
- The adapt_count of this inner mutex is not changed,
- because using the default lock with the inner mutex
- would abort the outer transaction.
- */
- __builtin_tabort (_HTM_FIRST_USER_ABORT_CODE | 1);
- }
- }
- else
- {
- if (status != _HTM_TBEGIN_TRANSIENT)
- {
- /* A persistent abort (cc 1 or 3) indicates that a retry is
- probably futile. Use the normal locking now and for the
- next couple of calls.
- Be careful to avoid writing to the lock. */
- if (aconf.skip_lock_internal_abort > 0)
- *adapt_count = aconf.skip_lock_internal_abort;
- goto use_lock;
- }
- }
- }
-
- /* Same logic as above, but for for a number of temporary failures in a
- row. */
- if (aconf.skip_lock_out_of_tbegin_retries > 0 && aconf.try_tbegin > 0)
- *adapt_count = aconf.skip_lock_out_of_tbegin_retries;
-
- use_lock:
- return LLL_LOCK ((*futex), private);
-}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/elision-timed.c b/nptl/sysdeps/unix/sysv/linux/s390/elision-timed.c
deleted file mode 100644
index a8d8b2a348..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/elision-timed.c
+++ /dev/null
@@ -1,26 +0,0 @@
-/* Lock elision timed lock.
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <time.h>
-#include <elision-conf.h>
-#include <lowlevellock.h>
-#define __lll_lock_elision __lll_timedlock_elision
-#define EXTRAARG const struct timespec *t,
-#undef LLL_LOCK
-#define LLL_LOCK(a, b) lll_timedlock(a, t, b)
-#include "elision-lock.c"
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/elision-trylock.c b/nptl/sysdeps/unix/sysv/linux/s390/elision-trylock.c
deleted file mode 100644
index 61447d6bf4..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/elision-trylock.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/* Elided pthread mutex trylock.
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <pthread.h>
-#include <pthreadP.h>
-#include <lowlevellock.h>
-#include <htmintrin.h>
-#include <elision-conf.h>
-
-#define aconf __elision_aconf
-
-/* Try to elide a futex trylock. FUTEX is the futex variable. ADAPT_COUNT is
- the adaptation counter in the mutex. */
-
-int
-__lll_trylock_elision (int *futex, short *adapt_count)
-{
- __asm__ volatile (".machinemode \"zarch_nohighgprs\"\n\t"
- ".machine \"all\""
- : : : "memory");
-
- /* Implement POSIX semantics by forbiding nesting elided trylocks.
- Sorry. After the abort the code is re-executed
- non transactional and if the lock was already locked
- return an error. */
- if (__builtin_tx_nesting_depth () > 0)
- {
- /* Note that this abort may terminate an outermost transaction that
- was created outside glibc.
- This persistently aborts the current transactions to force
- them to use the default lock instead of retrying transactions
- until their try_tbegin is zero.
- */
- __builtin_tabort (_HTM_FIRST_USER_ABORT_CODE | 1);
- }
-
- /* Only try a transaction if it's worth it. */
- if (*adapt_count <= 0)
- {
- unsigned status;
-
- if (__builtin_expect
- ((status = __builtin_tbegin ((void *)0)) == _HTM_TBEGIN_STARTED, 1))
- {
- if (*futex == 0)
- return 0;
- /* Lock was busy. Fall back to normal locking. */
- /* Since we are in a non-nested transaction there is no need to abort,
- which is expensive. */
- __builtin_tend ();
- /* Note: Changing the adapt_count here might abort a transaction on a
- different cpu, but that could happen anyway when the futex is
- acquired, so there's no need to check the nesting depth here. */
- if (aconf.skip_lock_busy > 0)
- *adapt_count = aconf.skip_lock_busy;
- }
- else
- {
- if (status != _HTM_TBEGIN_TRANSIENT)
- {
- /* A persistent abort (cc 1 or 3) indicates that a retry is
- probably futile. Use the normal locking now and for the
- next couple of calls.
- Be careful to avoid writing to the lock. */
- if (aconf.skip_trylock_internal_abort > 0)
- *adapt_count = aconf.skip_trylock_internal_abort;
- }
- }
- /* Could do some retries here. */
- }
- else
- {
- /* Lost updates are possible, but harmless. Due to races this might lead
- to *adapt_count becoming less than zero. */
- (*adapt_count)--;
- }
-
- return lll_trylock (*futex);
-}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/elision-unlock.c b/nptl/sysdeps/unix/sysv/linux/s390/elision-unlock.c
deleted file mode 100644
index 9ceae3ee1e..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/elision-unlock.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/* Commit an elided pthread lock.
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <pthreadP.h>
-#include <lowlevellock.h>
-
-int
-__lll_unlock_elision(int *futex, int private)
-{
- /* If the lock is free, we elided the lock earlier. This does not
- necessarily mean that we are in a transaction, because the user code may
- have closed the transaction, but that is impossible to detect reliably. */
- if (*futex == 0)
- {
- __asm__ volatile (".machinemode \"zarch_nohighgprs\"\n\t"
- ".machine \"all\""
- : : : "memory");
- __builtin_tend();
- }
- else
- lll_unlock ((*futex), private);
- return 0;
-}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/force-elision.h b/nptl/sysdeps/unix/sysv/linux/s390/force-elision.h
deleted file mode 100644
index 8fd7684d9a..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/force-elision.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* Automatic enabling of elision for mutexes
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#ifdef ENABLE_LOCK_ELISION
-/* Check for elision on this lock without upgrading. */
-#define DO_ELISION(m) \
- (__pthread_force_elision \
- && (m->__data.__kind & PTHREAD_MUTEX_NO_ELISION_NP) == 0) \
-
-/* Automatically enable elision for existing user lock kinds. */
-#define FORCE_ELISION(m, s) \
- if (__pthread_force_elision \
- && (m->__data.__kind & PTHREAD_MUTEX_ELISION_FLAGS_NP) == 0) \
- { \
- mutex->__data.__kind |= PTHREAD_MUTEX_ELISION_NP; \
- s; \
- }
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/jmp-unwind.c b/nptl/sysdeps/unix/sysv/linux/s390/jmp-unwind.c
deleted file mode 100644
index f35eab5ac1..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/jmp-unwind.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/* Clean up stack frames unwound by longjmp. Linux/s390 version.
- Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <setjmp.h>
-#include <stddef.h>
-#include <pthreadP.h>
-
-extern void __pthread_cleanup_upto (__jmp_buf env, char *targetframe);
-#pragma weak __pthread_cleanup_upto
-
-
-void
-_longjmp_unwind (jmp_buf env, int val)
-{
- char local_var;
-
-#ifdef SHARED
- if (__libc_pthread_functions_init)
- PTHFCT_CALL (ptr___pthread_cleanup_upto, (env->__jmpbuf, &local_var));
-#else
- if (__pthread_cleanup_upto != NULL)
- __pthread_cleanup_upto (env->__jmpbuf, &local_var);
-#endif
-}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
deleted file mode 100644
index cabff30be9..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
+++ /dev/null
@@ -1,390 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#ifndef _LOWLEVELLOCK_H
-#define _LOWLEVELLOCK_H 1
-
-#include <time.h>
-#include <sys/param.h>
-#include <bits/pthreadtypes.h>
-#include <atomic.h>
-#include <kernel-features.h>
-
-#define SYS_futex 238
-#define FUTEX_WAIT 0
-#define FUTEX_WAKE 1
-#define FUTEX_REQUEUE 3
-#define FUTEX_CMP_REQUEUE 4
-#define FUTEX_WAKE_OP 5
-#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1)
-#define FUTEX_LOCK_PI 6
-#define FUTEX_UNLOCK_PI 7
-#define FUTEX_TRYLOCK_PI 8
-#define FUTEX_WAIT_BITSET 9
-#define FUTEX_WAKE_BITSET 10
-#define FUTEX_WAIT_REQUEUE_PI 11
-#define FUTEX_CMP_REQUEUE_PI 12
-#define FUTEX_PRIVATE_FLAG 128
-#define FUTEX_CLOCK_REALTIME 256
-
-#define FUTEX_BITSET_MATCH_ANY 0xffffffff
-
-/* Values for 'private' parameter of locking macros. Yes, the
- definition seems to be backwards. But it is not. The bit will be
- reversed before passing to the system call. */
-#define LLL_PRIVATE 0
-#define LLL_SHARED FUTEX_PRIVATE_FLAG
-
-
-#if !defined NOT_IN_libc || defined IS_IN_rtld
-/* In libc.so or ld.so all futexes are private. */
-# ifdef __ASSUME_PRIVATE_FUTEX
-# define __lll_private_flag(fl, private) \
- ((fl) | FUTEX_PRIVATE_FLAG)
-# else
-# define __lll_private_flag(fl, private) \
- ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex))
-# endif
-#else
-# ifdef __ASSUME_PRIVATE_FUTEX
-# define __lll_private_flag(fl, private) \
- (((fl) | FUTEX_PRIVATE_FLAG) ^ (private))
-# else
-# define __lll_private_flag(fl, private) \
- (__builtin_constant_p (private) \
- ? ((private) == 0 \
- ? ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) \
- : (fl)) \
- : ((fl) | (((private) ^ FUTEX_PRIVATE_FLAG) \
- & THREAD_GETMEM (THREAD_SELF, header.private_futex))))
-# endif
-#endif
-
-#define lll_futex_wait(futex, val, private) \
- lll_futex_timed_wait (futex, val, NULL, private)
-
-#define lll_futex_timed_wait(futexp, val, timespec, private) \
- ({ \
- INTERNAL_SYSCALL_DECL (__err); \
- \
- INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
- __lll_private_flag (FUTEX_WAIT, private), \
- (val), (timespec)); \
- })
-
-#define lll_futex_timed_wait_bitset(futexp, val, timespec, clockbit, private) \
- ({ \
- INTERNAL_SYSCALL_DECL (__err); \
- int __op = FUTEX_WAIT_BITSET | clockbit; \
- \
- INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
- __lll_private_flag (__op, private), \
- (val), (timespec), NULL /* Unused. */, \
- FUTEX_BITSET_MATCH_ANY); \
- })
-
-#define lll_futex_wake(futexp, nr, private) \
- ({ \
- INTERNAL_SYSCALL_DECL (__err); \
- \
- INTERNAL_SYSCALL (futex, __err, 4, (futexp), \
- __lll_private_flag (FUTEX_WAKE, private), \
- (nr), 0); \
- })
-
-#define lll_robust_dead(futexv, private) \
- do \
- { \
- int *__futexp = &(futexv); \
- \
- atomic_or (__futexp, FUTEX_OWNER_DIED); \
- lll_futex_wake (__futexp, 1, private); \
- } \
- while (0)
-
-
-/* Returns non-zero if error happened, zero if success. */
-#define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val, private) \
- ({ \
- INTERNAL_SYSCALL_DECL (__err); \
- long int __ret; \
- \
- __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
- __lll_private_flag (FUTEX_CMP_REQUEUE, private),\
- (nr_wake), (nr_move), (mutex), (val)); \
- INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
- })
-
-/* Returns non-zero if error happened, zero if success. */
-#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2, private) \
- ({ \
- INTERNAL_SYSCALL_DECL (__err); \
- long int __ret; \
- \
- __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
- __lll_private_flag (FUTEX_WAKE_OP, private), \
- (nr_wake), (nr_wake2), (futexp2), \
- FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \
- INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
- })
-
-/* Priority Inheritance support. */
-#define lll_futex_wait_requeue_pi(futexp, val, mutex, private) \
- lll_futex_timed_wait_requeue_pi (futexp, val, NULL, 0, mutex, private)
-
-#define lll_futex_timed_wait_requeue_pi(futexp, val, timespec, clockbit, \
- mutex, private) \
- ({ \
- INTERNAL_SYSCALL_DECL (__err); \
- int __op = FUTEX_WAIT_REQUEUE_PI | clockbit; \
- \
- INTERNAL_SYSCALL (futex, __err, 5, (futexp), \
- __lll_private_flag (__op, private), \
- (val), (timespec), mutex); \
- })
-
-#define lll_futex_cmp_requeue_pi(futexp, nr_wake, nr_move, mutex, val, priv) \
- ({ \
- INTERNAL_SYSCALL_DECL (__err); \
- long int __ret; \
- \
- __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \
- __lll_private_flag (FUTEX_CMP_REQUEUE_PI, priv),\
- (nr_wake), (nr_move), (mutex), (val)); \
- INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
- })
-
-#define lll_compare_and_swap(futex, oldval, newval, operation) \
- do { \
- __typeof (futex) __futex = (futex); \
- __asm __volatile (" l %1,%0\n" \
- "0: " operation "\n" \
- " cs %1,%2,%0\n" \
- " jl 0b\n" \
- "1:" \
- : "=Q" (*__futex), "=&d" (oldval), "=&d" (newval) \
- : "m" (*__futex) : "cc", "memory" ); \
- } while (0)
-
-
-static inline int
-__attribute__ ((always_inline))
-__lll_trylock (int *futex)
-{
- unsigned int old;
-
- __asm __volatile ("cs %0,%3,%1"
- : "=d" (old), "=Q" (*futex)
- : "0" (0), "d" (1), "m" (*futex) : "cc", "memory" );
- return old != 0;
-}
-#define lll_trylock(futex) __lll_trylock (&(futex))
-
-
-static inline int
-__attribute__ ((always_inline))
-__lll_cond_trylock (int *futex)
-{
- unsigned int old;
-
- __asm __volatile ("cs %0,%3,%1"
- : "=d" (old), "=Q" (*futex)
- : "0" (0), "d" (2), "m" (*futex) : "cc", "memory" );
- return old != 0;
-}
-#define lll_cond_trylock(futex) __lll_cond_trylock (&(futex))
-
-
-static inline int
-__attribute__ ((always_inline))
-__lll_robust_trylock (int *futex, int id)
-{
- unsigned int old;
-
- __asm __volatile ("cs %0,%3,%1"
- : "=d" (old), "=Q" (*futex)
- : "0" (0), "d" (id), "m" (*futex) : "cc", "memory" );
- return old != 0;
-}
-#define lll_robust_trylock(futex, id) \
- __lll_robust_trylock (&(futex), id)
-
-
-extern void __lll_lock_wait_private (int *futex) attribute_hidden;
-extern void __lll_lock_wait (int *futex, int private) attribute_hidden;
-extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden;
-
-static inline void
-__attribute__ ((always_inline))
-__lll_lock (int *futex, int private)
-{
- if (__glibc_unlikely (atomic_compare_and_exchange_bool_acq (futex, 1, 0)))
- {
- if (__builtin_constant_p (private) && private == LLL_PRIVATE)
- __lll_lock_wait_private (futex);
- else
- __lll_lock_wait (futex, private);
- }
-}
-#define lll_lock(futex, private) __lll_lock (&(futex), private)
-
-static inline int
-__attribute__ ((always_inline))
-__lll_robust_lock (int *futex, int id, int private)
-{
- int result = 0;
- if (__builtin_expect (atomic_compare_and_exchange_bool_acq (futex, id, 0),
- 0))
- result = __lll_robust_lock_wait (futex, private);
- return result;
-}
-#define lll_robust_lock(futex, id, private) \
- __lll_robust_lock (&(futex), id, private)
-
-static inline void
-__attribute__ ((always_inline))
-__lll_cond_lock (int *futex, int private)
-{
- if (__glibc_unlikely (atomic_compare_and_exchange_bool_acq (futex, 2, 0)))
- __lll_lock_wait (futex, private);
-}
-#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private)
-
-#define lll_robust_cond_lock(futex, id, private) \
- __lll_robust_lock (&(futex), (id) | FUTEX_WAITERS, private)
-
-extern int __lll_timedlock_wait
- (int *futex, const struct timespec *, int private) attribute_hidden;
-extern int __lll_robust_timedlock_wait
- (int *futex, const struct timespec *, int private) attribute_hidden;
-
-static inline int
-__attribute__ ((always_inline))
-__lll_timedlock (int *futex, const struct timespec *abstime, int private)
-{
- int result = 0;
- if (__glibc_unlikely (atomic_compare_and_exchange_bool_acq (futex, 1, 0)))
- result = __lll_timedlock_wait (futex, abstime, private);
- return result;
-}
-#define lll_timedlock(futex, abstime, private) \
- __lll_timedlock (&(futex), abstime, private)
-
-#ifdef ENABLE_LOCK_ELISION
-extern int __lll_timedlock_elision
- (int *futex, short *adapt_count, const struct timespec *timeout, int private)
- attribute_hidden;
-
-# define lll_timedlock_elision(futex, adapt_count, timeout, private) \
- __lll_timedlock_elision(&(futex), &(adapt_count), timeout, private)
-#endif
-
-static inline int
-__attribute__ ((always_inline))
-__lll_robust_timedlock (int *futex, const struct timespec *abstime,
- int id, int private)
-{
- int result = 0;
- if (__builtin_expect (atomic_compare_and_exchange_bool_acq (futex, id, 0),
- 0))
- result = __lll_robust_timedlock_wait (futex, abstime, private);
- return result;
-}
-#define lll_robust_timedlock(futex, abstime, id, private) \
- __lll_robust_timedlock (&(futex), abstime, id, private)
-
-
-#define __lll_unlock(futex, private) \
- (void) \
- ({ int __oldval; \
- int __newval = 0; \
- int *__futexp = (futex); \
- \
- lll_compare_and_swap (__futexp, __oldval, __newval, "slr %2,%2"); \
- if (__glibc_unlikely (__oldval > 1)) \
- lll_futex_wake (__futexp, 1, private); \
- })
-#define lll_unlock(futex, private) __lll_unlock(&(futex), private)
-
-
-#define __lll_robust_unlock(futex, private) \
- (void) \
- ({ int __oldval; \
- int __newval = 0; \
- int *__futexp = (futex); \
- \
- lll_compare_and_swap (__futexp, __oldval, __newval, "slr %2,%2"); \
- if (__glibc_unlikely (__oldval & FUTEX_WAITERS)) \
- lll_futex_wake (__futexp, 1, private); \
- })
-#define lll_robust_unlock(futex, private) \
- __lll_robust_unlock(&(futex), private)
-
-#define lll_islocked(futex) \
- (futex != 0)
-
-
-/* Initializers for lock. */
-#define LLL_LOCK_INITIALIZER (0)
-#define LLL_LOCK_INITIALIZER_LOCKED (1)
-
-/* The kernel notifies a process which uses CLONE_CHILD_CLEARTID via futex
- wakeup when the clone terminates. The memory location contains the
- thread ID while the clone is running and is reset to zero
- afterwards. */
-#define __lll_wait_tid(ptid) \
- do \
- { \
- int __tid; \
- \
- while ((__tid = *ptid) != 0) \
- lll_futex_wait (ptid, __tid, LLL_SHARED); \
- } \
- while (0)
-#define lll_wait_tid(tid) __lll_wait_tid(&(tid))
-
-extern int __lll_timedwait_tid (int *, const struct timespec *)
- attribute_hidden;
-
-#define lll_timedwait_tid(tid, abstime) \
- ({ \
- int __res = 0; \
- if ((tid) != 0) \
- __res = __lll_timedwait_tid (&(tid), (abstime)); \
- __res; \
- })
-
-#ifdef ENABLE_LOCK_ELISION
-extern int __lll_lock_elision (int *futex, short *adapt_count, int private)
- attribute_hidden;
-
-extern int __lll_unlock_elision(int *futex, int private)
- attribute_hidden;
-
-extern int __lll_trylock_elision(int *futex, short *adapt_count)
- attribute_hidden;
-
-# define lll_lock_elision(futex, adapt_count, private) \
- __lll_lock_elision (&(futex), &(adapt_count), private)
-# define lll_unlock_elision(futex, private) \
- __lll_unlock_elision (&(futex), private)
-# define lll_trylock_elision(futex, adapt_count) \
- __lll_trylock_elision(&(futex), &(adapt_count))
-#endif
-
-#endif /* lowlevellock.h */
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/pt-longjmp.c b/nptl/sysdeps/unix/sysv/linux/s390/pt-longjmp.c
deleted file mode 100644
index 801432cccb..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/pt-longjmp.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/* Copyright (C) 2013 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>.
-
- This is a copy of pthread/pt-longjmp.c made for extending the
- jmpbuf structure on System z. */
-
-#include <setjmp.h>
-#include <stdlib.h>
-#include <bits/wordsize.h>
-#include "pthreadP.h"
-#include <shlib-compat.h>
-#if defined SHARED && SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_19)
-
-/* The __v1 version prototypes are declared in v1-setjmp.h which
- cannot be included together with setjmp.h. So we put the
- prototypes here manually. */
-extern void __v1__libc_siglongjmp (sigjmp_buf env, int val)
- __attribute__ ((noreturn));
-extern void __v1__libc_longjmp (sigjmp_buf env, int val)
- __attribute__ ((noreturn));
-
-void __v1_siglongjmp (sigjmp_buf env, int val)
-{
- __v1__libc_siglongjmp (env, val);
-}
-
-void __v1_longjmp (jmp_buf env, int val)
-{
- __v1__libc_longjmp (env, val);
-}
-
-compat_symbol (libpthread, __v1_longjmp, longjmp, GLIBC_2_0);
-compat_symbol (libpthread, __v1_siglongjmp, siglongjmp, GLIBC_2_0);
-#endif /* defined SHARED && SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_19)) */
-
-void
-__v2_longjmp (jmp_buf env, int val)
-{
- __libc_longjmp (env, val);
-}
-
-void
-__v2_siglongjmp (jmp_buf env, int val)
-{
- __libc_siglongjmp (env, val);
-}
-
-versioned_symbol (libpthread, __v2_longjmp, longjmp, GLIBC_2_19);
-versioned_symbol (libpthread, __v2_siglongjmp, siglongjmp, GLIBC_2_19);
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_cond_lock.c b/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_cond_lock.c
deleted file mode 100644
index 6fc0f969ef..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_cond_lock.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-/* The cond lock is not actually elided yet, but we still need to handle
- already elided locks. */
-#include <elision-conf.h>
-
-#include <nptl/sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c>
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_lock.c b/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_lock.c
deleted file mode 100644
index 6fd6a9866f..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_lock.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Elided version of pthread_mutex_lock.
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <elision-conf.h>
-#include <force-elision.h>
-
-#include <nptl/pthread_mutex_lock.c>
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_timedlock.c b/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_timedlock.c
deleted file mode 100644
index d0e6537ecc..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_timedlock.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Elided version of pthread_mutex_timedlock.
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <elision-conf.h>
-#include <force-elision.h>
-
-#include <nptl/pthread_mutex_timedlock.c>
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_trylock.c b/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_trylock.c
deleted file mode 100644
index ea8a8fff93..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_trylock.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Elided version of pthread_mutex_trylock.
- Copyright (C) 2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <elision-conf.h>
-#include <force-elision.h>
-
-#include <nptl/pthread_mutex_trylock.c>
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/pthread_once.c b/nptl/sysdeps/unix/sysv/linux/s390/pthread_once.c
deleted file mode 100644
index ce02206c17..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/pthread_once.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include "pthreadP.h"
-#include <lowlevellock.h>
-
-
-unsigned long int __fork_generation attribute_hidden;
-
-
-static void
-clear_once_control (void *arg)
-{
- pthread_once_t *once_control = (pthread_once_t *) arg;
-
- *once_control = 0;
- lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE);
-}
-
-
-int
-__pthread_once (once_control, init_routine)
- pthread_once_t *once_control;
- void (*init_routine) (void);
-{
- while (1)
- {
- int oldval;
- int newval;
-
- /* Pseudo code:
- oldval = *once_control;
- if ((oldval & 2) == 0)
- {
- newval = (oldval & 3) | __fork_generation | 1;
- *once_control = newval;
- }
- Do this atomically. */
- __asm __volatile (" l %1,%0\n"
- "0: lhi %2,2\n"
- " tml %1,2\n"
- " jnz 1f\n"
- " nr %2,%1\n"
- " ahi %2,1\n"
- " o %2,%3\n"
- " cs %1,%2,%0\n"
- " jl 0b\n"
- "1:"
- : "=Q" (*once_control), "=&d" (oldval), "=&d" (newval)
- : "m" (__fork_generation), "m" (*once_control)
- : "cc" );
- /* Check if the initialized has already been done. */
- if ((oldval & 2) != 0)
- break;
- /* Check if another thread already runs the initializer. */
- if ((oldval & 1) != 0)
- {
- /* Check whether the initializer execution was interrupted
- by a fork. */
- if (((oldval ^ newval) & -4) == 0)
- {
- /* Same generation, some other thread was faster. Wait. */
- lll_futex_wait (once_control, newval, LLL_PRIVATE);
- continue;
- }
- }
-
- /* This thread is the first here. Do the initialization.
- Register a cleanup handler so that in case the thread gets
- interrupted the initialization can be restarted. */
- pthread_cleanup_push (clear_once_control, once_control);
-
- init_routine ();
-
- pthread_cleanup_pop (0);
-
-
- /* Add one to *once_control. */
- __asm __volatile (" l %1,%0\n"
- "0: lr %2,%1\n"
- " ahi %2,1\n"
- " cs %1,%2,%0\n"
- " jl 0b\n"
- : "=Q" (*once_control), "=&d" (oldval), "=&d" (newval)
- : "m" (*once_control) : "cc" );
-
- /* Wake up all other threads. */
- lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE);
- break;
- }
-
- return 0;
-}
-weak_alias (__pthread_once, pthread_once)
-hidden_def (__pthread_once)
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h
deleted file mode 100644
index 0eeefca5cb..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-#include <tls.h>
-#ifndef __ASSEMBLER__
-# include <nptl/pthreadP.h>
-#endif
-
-#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
-
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args) \
- .text; \
-L(pseudo_cancel): \
- cfi_startproc; \
- STM_##args \
- stm %r12,%r15,48(%r15); \
- cfi_offset (%r15, -36); \
- cfi_offset (%r14, -40); \
- cfi_offset (%r13, -44); \
- cfi_offset (%r12, -48); \
- lr %r14,%r15; \
- ahi %r15,-96; \
- cfi_adjust_cfa_offset (96); \
- st %r14,0(%r15); \
- basr %r13,0; \
-0: l %r1,1f-0b(%r13); \
- bas %r14,0(%r1,%r13); \
- lr %r0,%r2; \
- LM_##args \
- .if SYS_ify (syscall_name) < 256; \
- svc SYS_ify (syscall_name); \
- .else; \
- lhi %r1,SYS_ify (syscall_name); \
- svc 0; \
- .endif; \
- LR7_##args \
- l %r1,2f-0b(%r13); \
- lr %r12,%r2; \
- lr %r2,%r0; \
- bas %r14,0(%r1,%r13); \
- lr %r2,%r12; \
- lm %r12,%r15,48+96(%r15); \
- cfi_endproc; \
- j L(pseudo_check); \
-1: .long CENABLE-0b; \
-2: .long CDISABLE-0b; \
-ENTRY(name) \
- SINGLE_THREAD_P(%r1) \
- jne L(pseudo_cancel); \
-.type __##syscall_name##_nocancel,@function; \
-.globl __##syscall_name##_nocancel; \
-__##syscall_name##_nocancel: \
- DO_CALL(syscall_name, args); \
-L(pseudo_check): \
- lhi %r4,-4095; \
- clr %r2,%r4; \
- jnl SYSCALL_ERROR_LABEL; \
-.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \
-L(pseudo_end):
-
-# ifdef IS_IN_libpthread
-# define CENABLE __pthread_enable_asynccancel
-# define CDISABLE __pthread_disable_asynccancel
-# elif !defined NOT_IN_libc
-# define CENABLE __libc_enable_asynccancel
-# define CDISABLE __libc_disable_asynccancel
-# elif defined IS_IN_librt
-# define CENABLE __librt_enable_asynccancel
-# define CDISABLE __librt_disable_asynccancel
-# else
-# error Unsupported library
-# endif
-
-#define STM_0 /* Nothing */
-#define STM_1 st %r2,8(%r15);
-#define STM_2 stm %r2,%r3,8(%r15);
-#define STM_3 stm %r2,%r4,8(%r15);
-#define STM_4 stm %r2,%r5,8(%r15);
-#define STM_5 stm %r2,%r5,8(%r15);
-#define STM_6 stm %r2,%r7,8(%r15);
-
-#define LM_0 /* Nothing */
-#define LM_1 l %r2,8+96(%r15);
-#define LM_2 lm %r2,%r3,8+96(%r15);
-#define LM_3 lm %r2,%r4,8+96(%r15);
-#define LM_4 lm %r2,%r5,8+96(%r15);
-#define LM_5 lm %r2,%r5,8+96(%r15);
-#define LM_6 lm %r2,%r5,8+96(%r15); \
- cfi_offset (%r7, -68); \
- l %r7,96+96(%r15);
-
-#define LR7_0 /* Nothing */
-#define LR7_1 /* Nothing */
-#define LR7_2 /* Nothing */
-#define LR7_3 /* Nothing */
-#define LR7_4 /* Nothing */
-#define LR7_5 /* Nothing */
-#define LR7_6 l %r7,28+96(%r15); \
- cfi_restore (%r7);
-
-# ifndef __ASSEMBLER__
-# define SINGLE_THREAD_P \
- __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
- header.multiple_threads) == 0, 1)
-# else
-# define SINGLE_THREAD_P(reg) \
- ear reg,%a0; \
- icm reg,15,MULTIPLE_THREADS_OFFSET(reg);
-# endif
-
-#elif !defined __ASSEMBLER__
-
-# define SINGLE_THREAD_P (1)
-# define NO_CANCELLATION 1
-
-#endif
-
-#ifndef __ASSEMBLER__
-# define RTLD_SINGLE_THREAD_P \
- __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
- header.multiple_threads) == 0, 1)
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/Versions b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/Versions
deleted file mode 100644
index 3b111ddb51..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/Versions
+++ /dev/null
@@ -1,7 +0,0 @@
-librt {
- GLIBC_2.3.3 {
- # Changed timer_t.
- timer_create; timer_delete; timer_getoverrun; timer_gettime;
- timer_settime;
- }
-}
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h
deleted file mode 100644
index b3560c8e4e..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h
+++ /dev/null
@@ -1,152 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <sysdep.h>
-#include <tls.h>
-#ifndef __ASSEMBLER__
-# include <nptl/pthreadP.h>
-#endif
-
-#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
-
-# undef PSEUDO
-# define PSEUDO(name, syscall_name, args) \
- .text; \
-L(pseudo_cancel): \
- cfi_startproc; \
- STM_##args \
- stmg %r13,%r15,104(%r15); \
- cfi_offset (%r15,-40); \
- cfi_offset (%r14,-48); \
- cfi_offset (%r13,-56); \
- lgr %r14,%r15; \
- aghi %r15,-160; \
- cfi_adjust_cfa_offset (160); \
- stg %r14,0(%r15); \
- brasl %r14,CENABLE; \
- lgr %r0,%r2; \
- LM_##args \
- .if SYS_ify (syscall_name) < 256; \
- svc SYS_ify (syscall_name); \
- .else; \
- lghi %r1,SYS_ify (syscall_name); \
- svc 0; \
- .endif; \
- LR7_##args \
- lgr %r13,%r2; \
- lgr %r2,%r0; \
- brasl %r14,CDISABLE; \
- lgr %r2,%r13; \
- lmg %r13,%r15,104+160(%r15); \
- cfi_endproc; \
- j L(pseudo_check); \
-ENTRY(name) \
- SINGLE_THREAD_P \
- jne L(pseudo_cancel); \
-.type __##syscall_name##_nocancel,@function; \
-.globl __##syscall_name##_nocancel; \
-__##syscall_name##_nocancel: \
- DO_CALL(syscall_name, args); \
-L(pseudo_check): \
- lghi %r4,-4095; \
- clgr %r2,%r4; \
- jgnl SYSCALL_ERROR_LABEL; \
-.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \
-L(pseudo_end):
-
-# ifdef IS_IN_libpthread
-# define CENABLE __pthread_enable_asynccancel
-# define CDISABLE __pthread_disable_asynccancel
-# define __local_multiple_threads __pthread_multiple_threads
-# elif !defined NOT_IN_libc
-# define CENABLE __libc_enable_asynccancel
-# define CDISABLE __libc_disable_asynccancel
-# define __local_multiple_threads __libc_multiple_threads
-# elif defined IS_IN_librt
-# define CENABLE __librt_enable_asynccancel
-# define CDISABLE __librt_disable_asynccancel
-# else
-# error Unsupported library
-# endif
-
-#define STM_0 /* Nothing */
-#define STM_1 stg %r2,16(%r15);
-#define STM_2 stmg %r2,%r3,16(%r15);
-#define STM_3 stmg %r2,%r4,16(%r15);
-#define STM_4 stmg %r2,%r5,16(%r15);
-#define STM_5 stmg %r2,%r5,16(%r15);
-#define STM_6 stmg %r2,%r7,16(%r15);
-
-#define LM_0 /* Nothing */
-#define LM_1 lg %r2,16+160(%r15);
-#define LM_2 lmg %r2,%r3,16+160(%r15);
-#define LM_3 lmg %r2,%r4,16+160(%r15);
-#define LM_4 lmg %r2,%r5,16+160(%r15);
-#define LM_5 lmg %r2,%r5,16+160(%r15);
-#define LM_6 lmg %r2,%r5,16+160(%r15); \
- cfi_offset (%r7, -104); \
- lg %r7,160+160(%r15);
-
-#define LR7_0 /* Nothing */
-#define LR7_1 /* Nothing */
-#define LR7_2 /* Nothing */
-#define LR7_3 /* Nothing */
-#define LR7_4 /* Nothing */
-#define LR7_5 /* Nothing */
-#define LR7_6 lg %r7,56+160(%r15); \
- cfi_restore (%r7);
-
-# if defined IS_IN_libpthread || !defined NOT_IN_libc
-# ifndef __ASSEMBLER__
-extern int __local_multiple_threads attribute_hidden;
-# define SINGLE_THREAD_P \
- __builtin_expect (__local_multiple_threads == 0, 1)
-# else
-# define SINGLE_THREAD_P \
- larl %r1,__local_multiple_threads; \
- icm %r0,15,0(%r1);
-# endif
-
-# else
-
-# ifndef __ASSEMBLER__
-# define SINGLE_THREAD_P \
- __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
- header.multiple_threads) == 0, 1)
-# else
-# define SINGLE_THREAD_P \
- ear %r1,%a0; \
- sllg %r1,%r1,32; \
- ear %r1,%a1; \
- icm %r1,15,MULTIPLE_THREADS_OFFSET(%r1);
-# endif
-
-# endif
-
-#elif !defined __ASSEMBLER__
-
-# define SINGLE_THREAD_P (1)
-# define NO_CANCELLATION 1
-
-#endif
-
-#ifndef __ASSEMBLER__
-# define RTLD_SINGLE_THREAD_P \
- __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
- header.multiple_threads) == 0, 1)
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c
deleted file mode 100644
index d307135003..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_create.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_create.c>
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c
deleted file mode 100644
index 2dd94f5c7a..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_delete.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_delete.c>
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_getoverr.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_getoverr.c
deleted file mode 100644
index 22eaff5cda..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_getoverr.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_getoverr.c>
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_gettime.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_gettime.c
deleted file mode 100644
index cea524bae5..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_gettime.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_gettime.c>
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c b/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c
deleted file mode 100644
index fa231149d5..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/s390/s390-64/timer_settime.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/x86_64/timer_settime.c>