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authorWaldemar Brodkorb <wbx@openadk.org>2019-11-08 03:03:43 +0100
committerWaldemar Brodkorb <wbx@openadk.org>2019-11-08 03:03:43 +0100
commitd0bc0d2bc8e5898bed6dfa6f253d164e9fc149f4 (patch)
treee6315b68a6c5100bdcec391cd965ef63d5291f82 /libpthread/nptl/sysdeps/unix/sysv/linux
parentcb9d1f53717dd67892ba943626f3d1b46f3e760b (diff)
riscv64: implement NPTL/TLS
basically from or1k port of uClibc-ng, with fixes for structures in pthreadtypes.h from 64 bit architectures. 18 testsuite failures counted.
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux')
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/bits/pthreadtypes.h8
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/Makefile9
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/Makefile.arch9
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/bits/pthreadtypes.h167
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/bits/semaphore.h33
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/createthread.c22
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/fork.c27
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/pthread_once.c92
-rw-r--r--libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/sysdep-cancel.h38
9 files changed, 398 insertions, 7 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/bits/pthreadtypes.h b/libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/bits/pthreadtypes.h
index 47293a1a8..67fcee28b 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/bits/pthreadtypes.h
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/aarch64/bits/pthreadtypes.h
@@ -36,7 +36,6 @@
exposed on purpose. */
typedef unsigned long int pthread_t;
-
union pthread_attr_t
{
char __size[__SIZEOF_PTHREAD_ATTR_T];
@@ -44,7 +43,7 @@ union pthread_attr_t
};
#ifndef __have_pthread_attr_t
typedef union pthread_attr_t pthread_attr_t;
-# define __have_pthread_attr_t1
+# define __have_pthread_attr_t 1
#endif
typedef struct __pthread_internal_list
@@ -75,9 +74,6 @@ typedef union
long int __align;
} pthread_mutex_t;
-/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER. */
-#define __PTHREAD_SPINS 0
-
typedef union
{
char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
@@ -141,8 +137,6 @@ typedef union
long int __align;
} pthread_rwlock_t;
-#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
-
typedef union
{
char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/Makefile b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/Makefile
new file mode 100644
index 000000000..2caba11b7
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/Makefile
@@ -0,0 +1,9 @@
+# Makefile for uClibc-ng NPTL
+# Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+
+top_srcdir=../../../../../../../
+top_builddir=../../../../../../../
+all: objs
+include $(top_builddir)Rules.mak
+include Makefile.arch
+include $(top_srcdir)Makerules
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/Makefile.arch
new file mode 100644
index 000000000..94aa25ffb
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/Makefile.arch
@@ -0,0 +1,9 @@
+# Makefile for uClibc-ng NPTL
+# Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+
+libpthread_linux_arch_SSRC =
+libpthread_linux_arch_CSRC = pthread_once.c
+
+libc_linux_arch_CSRC = fork.c
+
+CFLAGS += $(SSP_ALL_CFLAGS)
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/bits/pthreadtypes.h b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/bits/pthreadtypes.h
new file mode 100644
index 000000000..13d138cd3
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/bits/pthreadtypes.h
@@ -0,0 +1,167 @@
+/* Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H 1
+
+#define __SIZEOF_PTHREAD_ATTR_T 56
+#define __SIZEOF_PTHREAD_MUTEX_T 40
+#define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+#define __SIZEOF_PTHREAD_COND_T 48
+#define __SIZEOF_PTHREAD_COND_COMPAT_T 12
+#define __SIZEOF_PTHREAD_CONDATTR_T 4
+#define __SIZEOF_PTHREAD_RWLOCK_T 56
+#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+#define __SIZEOF_PTHREAD_BARRIER_T 32
+#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+
+
+/* Thread identifiers. The structure of the attribute type is not
+ exposed on purpose. */
+typedef unsigned long int pthread_t;
+
+union pthread_attr_t
+{
+ char __size[__SIZEOF_PTHREAD_ATTR_T];
+ long int __align;
+};
+#ifndef __have_pthread_attr_t
+typedef union pthread_attr_t pthread_attr_t;
+# define __have_pthread_attr_t 1
+#endif
+
+typedef struct __pthread_internal_list
+{
+ struct __pthread_internal_list *__prev;
+ struct __pthread_internal_list *__next;
+} __pthread_list_t;
+
+
+/* Data structures for mutex handling. The structure of the attribute
+ type is not exposed on purpose. */
+typedef union
+{
+ struct __pthread_mutex_s
+ {
+ int __lock;
+ unsigned int __count;
+ int __owner;
+ unsigned int __nusers;
+ /* KIND must stay at this position in the structure to maintain
+ binary compatibility with static initializers. */
+ int __kind;
+ int __spins;
+ __pthread_list_t __list;
+#define __PTHREAD_MUTEX_HAVE_PREV 1
+ } __data;
+ char __size[__SIZEOF_PTHREAD_MUTEX_T];
+ long int __align;
+} pthread_mutex_t;
+
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
+ long int __align;
+} pthread_mutexattr_t;
+
+
+/* Data structure for conditional variable handling. The structure of
+ the attribute type is not exposed on purpose. */
+typedef union
+{
+ struct
+ {
+ int __lock;
+ unsigned int __futex;
+ __extension__ unsigned long long int __total_seq;
+ __extension__ unsigned long long int __wakeup_seq;
+ __extension__ unsigned long long int __woken_seq;
+ void *__mutex;
+ unsigned int __nwaiters;
+ unsigned int __broadcast_seq;
+ } __data;
+ char __size[__SIZEOF_PTHREAD_COND_T];
+ __extension__ long long int __align;
+} pthread_cond_t;
+
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_CONDATTR_T];
+ long int __align;
+} pthread_condattr_t;
+
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K
+/* Data structure for read-write lock variable handling. The
+ structure of the attribute type is not exposed on purpose. */
+typedef union
+{
+ struct
+ {
+ int __lock;
+ unsigned int __nr_readers;
+ unsigned int __readers_wakeup;
+ unsigned int __writer_wakeup;
+ unsigned int __nr_readers_queued;
+ unsigned int __nr_writers_queued;
+ int __writer;
+ int __shared;
+ unsigned long int __pad1;
+ unsigned long int __pad2;
+ unsigned int __flags;
+ } __data;
+ char __size[__SIZEOF_PTHREAD_RWLOCK_T];
+ long int __align;
+} pthread_rwlock_t;
+
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
+ long int __align;
+} pthread_rwlockattr_t;
+#endif
+
+
+#ifdef __USE_XOPEN2K
+/* POSIX spinlock data type. */
+typedef volatile int pthread_spinlock_t;
+
+
+/* POSIX barriers data type. The structure of the type is
+ deliberately not exposed. */
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_BARRIER_T];
+ long int __align;
+} pthread_barrier_t;
+
+typedef union
+{
+ char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
+ int __align;
+} pthread_barrierattr_t;
+#endif
+
+#endif /* bits/pthreadtypes.h */
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/bits/semaphore.h b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/bits/semaphore.h
new file mode 100644
index 000000000..796a4383b
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/bits/semaphore.h
@@ -0,0 +1,33 @@
+/* Copyright (C) 2002, 2005, 2007 Free Software Foundation, Inc.
+
+ 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 _SEMAPHORE_H
+# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
+#endif
+
+
+#define __SIZEOF_SEM_T (4 * __SIZEOF_POINTER__)
+
+
+/* Value returned if `sem_open' failed. */
+#define SEM_FAILED ((sem_t *) 0)
+
+
+typedef union
+{
+ char __size[__SIZEOF_SEM_T];
+ long int __align;
+} sem_t;
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/createthread.c b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/createthread.c
new file mode 100644
index 000000000..10bb1bbfe
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/createthread.c
@@ -0,0 +1,22 @@
+/* Copyright (C) 2012 Free Software Foundation, Inc.
+
+ 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; see the file COPYING.LIB. If
+ not, see <http://www.gnu.org/licenses/>.  */
+
+/* Value passed to 'clone' for initialization of the thread register. */
+#define TLS_VALUE ((void *) (pd) \
+ + TLS_PRE_TCB_SIZE + TLS_INIT_TCB_SIZE)
+
+/* Get the real implementation. */
+#include <sysdeps/pthread/createthread.c>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/fork.c b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/fork.c
new file mode 100644
index 000000000..e55d05d41
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/fork.c
@@ -0,0 +1,27 @@
+/* Copyright (C) 2005 Free Software Foundation, Inc.
+ Contributed by Phil Blundell <pb@nexus.co.uk>, 2005
+
+ 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 <sched.h>
+#include <signal.h>
+#include <sysdep.h>
+#include <tls.h>
+
+#define ARCH_FORK() \
+ INLINE_SYSCALL (clone, 5, \
+ CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \
+ NULL, &THREAD_SELF->tid, NULL)
+
+#include "../fork.c"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/pthread_once.c b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/pthread_once.c
new file mode 100644
index 000000000..ce68ce68c
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/pthread_once.c
@@ -0,0 +1,92 @@
+/* Copyright (C) 2003-2013 Free Software Foundation, Inc.
+ 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 "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, val, newval;
+
+ val = *once_control;
+ do
+ {
+ /* Check if the initialized has already been done. */
+ if ((val & 2) != 0)
+ return 0;
+
+ oldval = val;
+ newval = (oldval & 3) | __fork_generation | 1;
+ val = atomic_compare_and_exchange_val_acq (once_control, newval,
+ oldval);
+ }
+ while (__builtin_expect (val != oldval, 0));
+
+ /* 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. */
+ atomic_increment (once_control);
+
+ /* Wake up all other threads. */
+ lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE);
+ break;
+ }
+
+ return 0;
+}
+weak_alias (__pthread_once, pthread_once)
+strong_alias (__pthread_once, __pthread_once_internal)
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/sysdep-cancel.h
new file mode 100644
index 000000000..f7e70514a
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/riscv64/sysdep-cancel.h
@@ -0,0 +1,38 @@
+/* Copyright (C) 2014 Free Software Foundation, Inc.
+
+ 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 <pthreadP.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
+
+# define SINGLE_THREAD_P \
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ header.multiple_threads) == 0, 1)
+
+#else
+
+# define SINGLE_THREAD_P 1
+# define NO_CANCELLATION 1
+
+#endif
+
+#define RTLD_SINGLE_THREAD_P \
+ __builtin_expect (THREAD_GETMEM (THREAD_SELF, \
+ header.multiple_threads) == 0, 1)