ia64: relocate out of ports/ subdir

1 files changed, 185 insertions, 0 deletions

diff --git a/sysdeps/ia64/nptl/tls.h b/sysdeps/ia64/nptl/tls.h
new file mode 100644
index 0000000000..279d107d39
--- /dev/null
+++ b/sysdeps/ia64/nptl/tls.h
@@ -0,0 +1,185 @@
+/* Definition for thread-local data handling.  nptl/IA-64 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/>.  */
+
+#ifndef _TLS_H
+#define _TLS_H	1
+
+#include <dl-sysdep.h>
+#ifndef __ASSEMBLER__
+# include <stdbool.h>
+# include <stddef.h>
+# include <stdint.h>
+# include <stdlib.h>
+# include <list.h>
+
+
+/* Type for the dtv.  */
+typedef union dtv
+{
+  size_t counter;
+  struct
+  {
+    void *val;
+    bool is_static;
+  } pointer;
+} dtv_t;
+
+
+typedef struct
+{
+  dtv_t *dtv;
+  void *__private;
+} tcbhead_t;
+
+register struct pthread *__thread_self __asm__("r13");
+
+# define TLS_MULTIPLE_THREADS_IN_TCB 1
+
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
+#endif
+
+
+/* Alignment requirement for the stack.  */
+#define STACK_ALIGN	16
+
+#ifndef __ASSEMBLER__
+/* Get system call information.  */
+# include <sysdep.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 (tcbhead_t)
+
+/* This is the size we need before TCB.
+   If there is not any room for uintptr_t stack_guard and
+   uintptr_t pointer_guard in struct pthread's final padding,
+   we need to put struct pthread 16 byte slower.  */
+# define TLS_PRE_TCB_SIZE \
+  (sizeof (struct pthread)						\
+   + (PTHREAD_STRUCT_END_PADDING < 2 * sizeof (uintptr_t)		\
+      ? ((2 * sizeof (uintptr_t) + __alignof__ (struct pthread) - 1)	\
+	 & ~(__alignof__ (struct pthread) - 1))				\
+      : 0))
+
+/* Alignment requirements for the TCB.  */
+# define TLS_TCB_ALIGN __alignof__ (struct pthread)
+
+/* The DTV is allocated at the TP; the TCB is placed elsewhere.  */
+# define TLS_DTV_AT_TP	1
+
+/* Get the thread descriptor definition.  */
+# include <nptl/descr.h>
+
+/* 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)
+
+#define THREAD_SELF_SYSINFO	(((tcbhead_t *) __thread_self)->__private)
+#define THREAD_SYSINFO(pd) \
+  (((tcbhead_t *) ((char *) (pd) + TLS_PRE_TCB_SIZE))->__private)
+
+#if defined NEED_DL_SYSINFO
+# define INIT_SYSINFO   THREAD_SELF_SYSINFO = (void *) GLRO(dl_sysinfo)
+#else
+# define INIT_SYSINFO   NULL
+#endif
+
+/* 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(thrdescr, secondcall) \
+  (__thread_self = (thrdescr), INIT_SYSINFO, 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 \
+  ((struct pthread *) ((char *) __thread_self - TLS_PRE_TCB_SIZE))
+
+/* Magic for libthread_db to know how to do THREAD_SELF.  */
+# define DB_THREAD_SELF REGISTER (64, 64, 13 * 8, -TLS_PRE_TCB_SIZE)
+
+/* 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)
+
+/* Set the stack guard field in TCB head.  */
+#define THREAD_SET_STACK_GUARD(value) \
+  (((uintptr_t *) __thread_self)[-1] = (value))
+#define THREAD_COPY_STACK_GUARD(descr) \
+  (((uintptr_t *) ((char *) (descr) + TLS_PRE_TCB_SIZE))[-1] \
+   = ((uintptr_t *) __thread_self)[-1])
+
+/* Set the pointer guard field in TCB head.  */
+#define THREAD_GET_POINTER_GUARD() \
+  (((uintptr_t *) __thread_self)[-2])
+#define THREAD_SET_POINTER_GUARD(value) \
+  (((uintptr_t *) __thread_self)[-2] = (value))
+#define THREAD_COPY_POINTER_GUARD(descr) \
+  (((uintptr_t *) ((char *) (descr) + TLS_PRE_TCB_SIZE))[-2] \
+   = THREAD_GET_POINTER_GUARD ())
+
+/* Get and set the global scope generation counter in struct pthread.  */
+#define THREAD_GSCOPE_FLAG_UNUSED 0
+#define THREAD_GSCOPE_FLAG_USED   1
+#define THREAD_GSCOPE_FLAG_WAIT   2
+#define THREAD_GSCOPE_RESET_FLAG() \
+  do									     \
+    { int __res								     \
+	= atomic_exchange_rel (&THREAD_SELF->header.gscope_flag,	     \
+			       THREAD_GSCOPE_FLAG_UNUSED);		     \
+      if (__res == THREAD_GSCOPE_FLAG_WAIT)				     \
+	lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE);   \
+    }									     \
+  while (0)
+#define THREAD_GSCOPE_SET_FLAG() \
+  do									     \
+    {									     \
+      THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED;	     \
+      atomic_write_barrier ();						     \
+    }									     \
+  while (0)
+#define THREAD_GSCOPE_WAIT() \
+  GL(dl_wait_lookup_done) ()
+
+#endif /* __ASSEMBLER__ */
+
+#endif	/* tls.h */