1 files changed, 111 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/alpha/tls.h b/linuxthreads/sysdeps/alpha/tls.h
new file mode 100644
index 0000000000..c5cdc0a5b0
--- /dev/null
+++ b/linuxthreads/sysdeps/alpha/tls.h
@@ -0,0 +1,111 @@
+/* Definitions for thread-local data handling.  linuxthreads/Alpha version.
+   Copyright (C) 2002 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
+
+#ifndef __ASSEMBLER__
+
+# include <pt-machine.h>
+# include <stddef.h>
+
+/* Type for the dtv.  */
+typedef union dtv
+{
+  size_t counter;
+  void *pointer;
+} dtv_t;
+
+
+typedef struct
+{
+  dtv_t *dtv;
+
+  /* Reserved for the thread implementation.  In the case of LinuxThreads,
+     this is the thread descriptor.  */
+  void *tcb;
+} tcbhead_t;
+#endif
+
+
+#ifdef HAVE_TLS_SUPPORT
+
+/* 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 <linuxthreads/descr.h>
+
+/* 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_descr_struct)
+
+/* Alignment requirements for the TCB.  */
+#  define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct)
+
+/* The DTV is allocated at the TP; the TCB is placed elsewhere.  */
+#  define TLS_DTV_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 *)__builtin_thread_pointer ())->dtv = (DTV))
+
+/* Return dtv of given thread descriptor.  */
+#  define GET_DTV(descr) \
+  (((tcbhead_t *) (descr))->dtv)
+
+/* Code to initially initialize the thread pointer.  This might need
+   special attention since 'errno' is not yet available and if the
+   operation can cause a failure 'errno' must not be touched.  */
+# define TLS_INIT_TP(descr, secondcall)				\
+  ({								\
+    register tcbhead_t *__self = (void *)(descr);		\
+    __self->tcb = __self;					\
+    __builtin_set_thread_pointer(__self);			\
+  })
+
+/* Return the address of the dtv for the current thread.  */
+#  define THREAD_DTV() \
+  (((tcbhead_t *)__builtin_thread_pointer ())->dtv)
+
+/* Return the thread descriptor for the current thread.  */
+#undef THREAD_SELF
+#define THREAD_SELF \
+  ((pthread_descr)(((tcbhead_t *)__builtin_thread_pointer ())->tcb))
+
+#undef INIT_THREAD_SELF
+
+# endif	/* HAVE_TLS_SUPPORT */
+#endif /* __ASSEMBLER__ */
+
+#endif	/* tls.h */