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authorUlrich Drepper <drepper@redhat.com>2003-08-31 18:10:47 +0000
committerUlrich Drepper <drepper@redhat.com>2003-08-31 18:10:47 +0000
commitcd2fbe58e617407e79b64c68cef34224803aa910 (patch)
treeb07a2d7ac749cf125426c8deb41668deeaf6d2c8 /nptl/sysdeps/sparc
parentb5bc52efe77e9f0deeb2ee141ea066ab18c927da (diff)
downloadglibc-cd2fbe58e617407e79b64c68cef34224803aa910.tar.gz
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Update.
2003-08-31  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/x86_64/bsd-_setjmp.S: Use HIDDEN_JUMPTARGET.
	* include/setjmp.h: Add libc_hidden_proto for __sigsetjmp.

	(CFLAGS-clnt_perr.c): Likewise.
Diffstat (limited to 'nptl/sysdeps/sparc')
-rw-r--r--nptl/sysdeps/sparc/Makefile3
-rw-r--r--nptl/sysdeps/sparc/sparc32/pthread_spin_lock.c40
-rw-r--r--nptl/sysdeps/sparc/sparc32/pthread_spin_trylock.c29
-rw-r--r--nptl/sysdeps/sparc/sparc32/pthreaddef.h40
-rw-r--r--nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_lock.c39
-rw-r--r--nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_trylock.c1
-rw-r--r--nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_unlock.c1
-rw-r--r--nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c39
-rw-r--r--nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c34
-rw-r--r--nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c30
-rw-r--r--nptl/sysdeps/sparc/sparc64/pthreaddef.h40
-rw-r--r--nptl/sysdeps/sparc/tcb-offsets.sym4
-rw-r--r--nptl/sysdeps/sparc/td_ta_map_lwp2thr.c44
-rw-r--r--nptl/sysdeps/sparc/tls.h119
14 files changed, 463 insertions, 0 deletions
diff --git a/nptl/sysdeps/sparc/Makefile b/nptl/sysdeps/sparc/Makefile
new file mode 100644
index 0000000000..81bddf688c
--- /dev/null
+++ b/nptl/sysdeps/sparc/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
diff --git a/nptl/sysdeps/sparc/sparc32/pthread_spin_lock.c b/nptl/sysdeps/sparc/sparc32/pthread_spin_lock.c
new file mode 100644
index 0000000000..d3c6e3049a
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc32/pthread_spin_lock.c
@@ -0,0 +1,40 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_lock (pthread_spinlock_t *lock)
+{
+  __asm __volatile
+    ("1: ldstub [%0], %%g2\n"
+     "   orcc   %%g2, 0x0, %%g0\n"
+     "   bne,a  2f\n"
+     "   ldub   [%0], %%g2\n"
+     ".subsection 2\n"
+     "2: orcc   %%g2, 0x0, %%g0\n"
+     "   bne,a  2b\n"
+     "   ldub   [%0], %%g2\n"
+     "   b,a    1b\n"
+     ".previous"
+     : /* no outputs */
+     : "r" (lock)
+     : "g2", "memory", "cc");
+  return 0;
+}
diff --git a/nptl/sysdeps/sparc/sparc32/pthread_spin_trylock.c b/nptl/sysdeps/sparc/sparc32/pthread_spin_trylock.c
new file mode 100644
index 0000000000..bcc3158fdf
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc32/pthread_spin_trylock.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include "pthreadP.h"
+
+int
+pthread_spin_trylock (pthread_spinlock_t *lock)
+{
+  int res;
+  __asm __volatile ("ldstub [%1], %0" : "=r" (res) : "r" (lock) : "memory");
+  return res == 0 ? 0 : EBUSY;
+}
diff --git a/nptl/sysdeps/sparc/sparc32/pthreaddef.h b/nptl/sysdeps/sparc/sparc32/pthreaddef.h
new file mode 100644
index 0000000000..9908df9e93
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc32/pthreaddef.h
@@ -0,0 +1,40 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* Default stack size.  */
+#define ARCH_STACK_DEFAULT_SIZE	(2 * 1024 * 1024)
+
+/* Required stack pointer alignment at beginning.  */
+#define STACK_ALIGN		16
+
+/* Minimal stack size after allocating thread descriptor and guard size.  */
+#define MINIMAL_REST_STACK	2048
+
+/* Alignment requirement for TCB.  */
+#define TCB_ALIGNMENT		16
+
+
+/* Location of current stack frame.  */
+#define CURRENT_STACK_FRAME  (stack_pointer + (2 * 64))
+register char *stack_pointer __asm__("%sp");
+
+/* XXX Until we have a better place keep the definitions here.  */
+
+/* While there is no such syscall.  */
+#define __exit_thread_inline(val) \
+  INLINE_SYSCALL (exit, 1, (val))
diff --git a/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_lock.c b/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_lock.c
new file mode 100644
index 0000000000..8880f535b1
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_lock.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_lock (pthread_spinlock_t *lock)
+{
+  __asm __volatile
+    ("1: ldstub  [%0], %%g2\n"
+     "   brnz,pn %%g2, 2f\n"
+     "    membar #StoreLoad | #StoreStore\n"
+     ".subsection 2\n"
+     "2: ldub    [%0], %%g2\n"
+     "   brnz,pt %%g2, 2b\n"
+     "    membar #LoadLoad\n"
+     "   b,a,pt  %%xcc, 1b\n"
+     ".previous"
+     : /* no outputs */
+     : "r" (lock)
+     : "g2", "memory");
+  return 0;
+}
diff --git a/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_trylock.c b/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_trylock.c
new file mode 100644
index 0000000000..3b20a21808
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_trylock.c
@@ -0,0 +1 @@
+#include <sparc64/pthread_spin_trylock.c>
diff --git a/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_unlock.c b/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_unlock.c
new file mode 100644
index 0000000000..482cbe3d77
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_unlock.c
@@ -0,0 +1 @@
+#include <sparc64/pthread_spin_unlock.c>
diff --git a/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c b/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c
new file mode 100644
index 0000000000..77171d9b9a
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_lock (pthread_spinlock_t *lock)
+{
+  __asm __volatile
+    ("1: ldstub  [%0], %%g5\n"
+     "   brnz,pn %%g5, 2f\n"
+     "    membar #StoreLoad | #StoreStore\n"
+     ".subsection 2\n"
+     "2: ldub    [%0], %%g5\n"
+     "   brnz,pt %%g5, 2b\n"
+     "    membar #LoadLoad\n"
+     "   b,a,pt  %%xcc, 1b\n"
+     ".previous"
+     : /* no outputs */
+     : "r" (lock)
+     : "g5", "memory");
+  return 0;
+}
diff --git a/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c b/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c
new file mode 100644
index 0000000000..2bda809dac
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include "pthreadP.h"
+
+int
+pthread_spin_trylock (pthread_spinlock_t *lock)
+{
+  int res;
+  __asm __volatile
+    ("ldstub [%1], %0\n"
+     "membar #StoreLoad | #StoreStore"
+     : "=r" (res)
+     : "r" (lock)
+     : "memory");
+  return res == 0 ? 0 : EBUSY;
+}
diff --git a/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c b/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c
new file mode 100644
index 0000000000..7037675a23
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c
@@ -0,0 +1,30 @@
+/* pthread_spin_unlock -- unlock a spin lock.  Generic version.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Paul Mackerras <paulus@au.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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "pthreadP.h"
+#include <atomic.h>
+
+int
+pthread_spin_unlock (pthread_spinlock_t *lock)
+{
+  __asm __volatile ("membar #StoreStore | #LoadStore");
+  *lock = 0;
+  return 0;
+}
diff --git a/nptl/sysdeps/sparc/sparc64/pthreaddef.h b/nptl/sysdeps/sparc/sparc64/pthreaddef.h
new file mode 100644
index 0000000000..ec76512113
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc64/pthreaddef.h
@@ -0,0 +1,40 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* Default stack size.  */
+#define ARCH_STACK_DEFAULT_SIZE	(4 * 1024 * 1024)
+
+/* Required stack pointer alignment at beginning.  */
+#define STACK_ALIGN		16
+
+/* Minimal stack size after allocating thread descriptor and guard size.  */
+#define MINIMAL_REST_STACK	4096
+
+/* Alignment requirement for TCB.  */
+#define TCB_ALIGNMENT		16
+
+
+/* Location of current stack frame.  */
+#define CURRENT_STACK_FRAME  (stack_pointer + (2 * 128))
+register char *stack_pointer __asm__("%sp");
+
+/* XXX Until we have a better place keep the definitions here.  */
+
+/* While there is no such syscall.  */
+#define __exit_thread_inline(val) \
+  INLINE_SYSCALL (exit, 1, (val))
diff --git a/nptl/sysdeps/sparc/tcb-offsets.sym b/nptl/sysdeps/sparc/tcb-offsets.sym
new file mode 100644
index 0000000000..aee6be2570
--- /dev/null
+++ b/nptl/sysdeps/sparc/tcb-offsets.sym
@@ -0,0 +1,4 @@
+#include <sysdep.h>
+#include <tls.h>
+
+MULTIPLE_THREADS_OFFSET		offsetof (tcbhead_t, multiple_threads)
diff --git a/nptl/sysdeps/sparc/td_ta_map_lwp2thr.c b/nptl/sysdeps/sparc/td_ta_map_lwp2thr.c
new file mode 100644
index 0000000000..f120b96e73
--- /dev/null
+++ b/nptl/sysdeps/sparc/td_ta_map_lwp2thr.c
@@ -0,0 +1,44 @@
+/* Which thread is running on an LWP?  SPARC version.
+   Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "thread_dbP.h"
+#include <tls.h>
+
+
+td_err_e
+td_ta_map_lwp2thr (const td_thragent_t *ta, lwpid_t lwpid, td_thrhandle_t *th)
+{
+  LOG ("td_ta_map_lwp2thr");
+
+  /* Test whether the TA parameter is ok.  */
+  if (! ta_ok (ta))
+    return TD_BADTA;
+
+  prgregset_t regs;
+  if (ps_lgetregs (ta->ph, lwpid, regs) != PS_OK)
+    return TD_ERR;
+
+  /* SPARC thread register is %g7.  */
+  th->th_unique = (void *) regs[7];
+
+  /* Found it.  Now complete the `td_thrhandle_t' object.  */
+  th->th_ta_p = (td_thragent_t *) ta;
+
+  return TD_OK;
+}
diff --git a/nptl/sysdeps/sparc/tls.h b/nptl/sysdeps/sparc/tls.h
new file mode 100644
index 0000000000..87255941c1
--- /dev/null
+++ b/nptl/sysdeps/sparc/tls.h
@@ -0,0 +1,119 @@
+/* Definitions for thread-local data handling.  NPTL/sparc version.
+   Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _TLS_H
+#define _TLS_H
+
+#include <dl-sysdep.h>
+#ifndef __ASSEMBLER__
+# include <stddef.h>
+# include <stdint.h>
+# include <stdlib.h>
+# include <list.h>
+
+/* Type for the dtv.  */
+typedef union dtv
+{
+  size_t counter;
+  void *pointer;
+} dtv_t;
+
+typedef struct
+{
+  void *tcb;		/* Pointer to the TCB.  Not necessary the
+			   thread descriptor used by libpthread.  */
+  dtv_t *dtv;
+  void *self;
+  int multiple_threads;
+} tcbhead_t;
+
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
+#endif /* __ASSEMBLER__ */
+
+/* We require TLS support in the tools.  */
+#ifndef HAVE_TLS_SUPPORT
+# error "TLS support is required."
+#endif
+
+/* Signal that TLS support is available.  */
+#define USE_TLS	1
+
+#ifndef __ASSEMBLER__
+/* Get system call information.  */
+# include <sysdep.h>
+
+/* Get the thread descriptor definition.  */
+# include <nptl/descr.h>
+
+register struct pthread *__thread_self __asm__("%g7");
+
+/* This is the size of the initial TCB.  */
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB.  */
+# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
+
+/* This is the size of the TCB.  */
+# define TLS_TCB_SIZE sizeof (struct pthread)
+
+/* Alignment requirements for the TCB.  */
+# define TLS_TCB_ALIGN __alignof__ (struct pthread)
+
+/* The TCB can have any size and the memory following the address the
+   thread pointer points to is unspecified.  Allocate the TCB there.  */
+# define TLS_TCB_AT_TP	1
+
+/* Install the dtv pointer.  The pointer passed is to the element with
+   index -1 which contain the length.  */
+# define INSTALL_DTV(descr, dtvp) \
+  ((tcbhead_t *) (descr))->dtv = (dtvp) + 1
+
+/* Install new dtv for current thread.  */
+# define INSTALL_NEW_DTV(DTV) \
+  (((tcbhead_t *) __thread_self)->dtv = (DTV))
+
+/* Return dtv of given thread descriptor.  */
+# define GET_DTV(descr) \
+  (((tcbhead_t *) (descr))->dtv)
+
+/* Code to initially initialize the thread pointer.  */
+# define TLS_INIT_TP(descr, secondcall) \
+  (__thread_self = (__typeof (__thread_self)) (descr), NULL)
+
+/* Return the address of the dtv for the current thread.  */
+# define THREAD_DTV() \
+  (((tcbhead_t *) __thread_self)->dtv)
+
+/* Return the thread descriptor for the current thread.  */
+#define THREAD_SELF  __thread_self
+
+/* Access to data in the thread descriptor is easy.  */
+#define THREAD_GETMEM(descr, member) \
+  descr->member
+#define THREAD_GETMEM_NC(descr, member, idx) \
+  descr->member[idx]
+#define THREAD_SETMEM(descr, member, value) \
+  descr->member = (value)
+#define THREAD_SETMEM_NC(descr, member, idx, value) \
+  descr->member[idx] = (value)
+
+#endif /* !ASSEMBLER */
+
+#endif	/* tls.h */