Use LIBGCC_S_SO to override generic version.

[BZ #10920] Use the new generic override to specify the hppa
specific libgcc_s.so.4 version number. Remove the files which
hppa no longer has to duplicate in order to accomplish
overriding libgcc_s.so version number.

2009-11-08  Carlos O'Donell  <carlos@codesourcery.com>

	[BZ #10920]

	* sysdeps/hppa/libgcc_s.h: New file.
	* sysdeps/unix/sysv/linux/hppa/nptl/unwind-forcedunwind.c: Remove.
	* sysdeps/unix/sysv/linux/hppa/nptl/unwind-resume.c: Remove.
diff --git a/ChangeLog.hppa b/ChangeLog.hppa
index 77227b0..1bec9eb 100644
--- a/ChangeLog.hppa
+++ b/ChangeLog.hppa
@@ -1,3 +1,11 @@
+2009-11-08  Carlos O'Donell  <carlos@codesourcery.com>
+
+	[BZ #10920]
+
+	* sysdeps/hppa/libgcc_s.h: New file.
+	* sysdeps/unix/sysv/linux/hppa/nptl/unwind-forcedunwind.c: Remove.
+	* sysdeps/unix/sysv/linux/hppa/nptl/unwind-resume.c: Remove.
+
 2009-09-08  Carlos O'Donell  <carlos@codesourcery.com>
  
 	sysdeps/unix/sysv/linux/hppa/
diff --git a/sysdeps/hppa/libgcc_s.h b/sysdeps/hppa/libgcc_s.h
new file mode 100644
index 0000000..8dd1d72
--- /dev/null
+++ b/sysdeps/hppa/libgcc_s.h
@@ -0,0 +1,2 @@
+/* Name of libgcc_s library provided by gcc.  */
+#define LIBGCC_S_SO "libgcc_s.so.4"
diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/unwind-forcedunwind.c b/sysdeps/unix/sysv/linux/hppa/nptl/unwind-forcedunwind.c
deleted file mode 100644
index e0eef90..0000000
--- a/sysdeps/unix/sysv/linux/hppa/nptl/unwind-forcedunwind.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/* Copyright (C) 2003, 2005, 2006, 2009 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>.
-
-   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,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#include <dlfcn.h>
-#include <stdio.h>
-#include <unwind.h>
-#include <pthreadP.h>
-#include <sysdep.h>
-
-static void *libgcc_s_handle;
-static void (*libgcc_s_resume) (struct _Unwind_Exception *exc);
-static _Unwind_Reason_Code (*libgcc_s_personality)
-  (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *,
-   struct _Unwind_Context *);
-static _Unwind_Reason_Code (*libgcc_s_forcedunwind)
-  (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
-static _Unwind_Word (*libgcc_s_getcfa) (struct _Unwind_Context *);
-
-#define LIBGCC_S_SO "libgcc_s.so.4"
-
-void
-__attribute_noinline__
-pthread_cancel_init (void)
-{
-  void *resume;
-  void *personality;
-  void *forcedunwind;
-  void *getcfa;
-  void *handle;
-
-  if (__builtin_expect (libgcc_s_handle != NULL, 1))
-    {
-      /* Force gcc to reload all values.  */
-      asm volatile ("" ::: "memory");
-      return;
-    }
-
-  handle = __libc_dlopen (LIBGCC_S_SO);
-
-  if (handle == NULL
-      || (resume = __libc_dlsym (handle, "_Unwind_Resume")) == NULL
-      || (personality = __libc_dlsym (handle, "__gcc_personality_v0")) == NULL
-      || (forcedunwind = __libc_dlsym (handle, "_Unwind_ForcedUnwind"))
-	 == NULL
-      || (getcfa = __libc_dlsym (handle, "_Unwind_GetCFA")) == NULL
-#ifdef ARCH_CANCEL_INIT
-      || ARCH_CANCEL_INIT (handle)
-#endif
-      )
-    __libc_fatal (LIBGCC_S_SO " must be installed for pthread_cancel to work\n");
-
-  PTR_MANGLE (resume);
-  libgcc_s_resume = resume;
-  PTR_MANGLE (personality);
-  libgcc_s_personality = personality;
-  PTR_MANGLE (forcedunwind);
-  libgcc_s_forcedunwind = forcedunwind;
-  PTR_MANGLE (getcfa);
-  libgcc_s_getcfa = getcfa;
-  /* Make sure libgcc_s_handle is written last.  Otherwise,
-     pthread_cancel_init might return early even when the pointer the
-     caller is interested in is not initialized yet.  */
-  atomic_write_barrier ();
-  libgcc_s_handle = handle;
-}
-
-void
-__libc_freeres_fn_section
-__unwind_freeres (void)
-{
-  void *handle = libgcc_s_handle;
-  if (handle != NULL)
-    {
-      libgcc_s_handle = NULL;
-      __libc_dlclose (handle);
-    }
-}
-
-void
-_Unwind_Resume (struct _Unwind_Exception *exc)
-{
-  if (__builtin_expect (libgcc_s_handle == NULL, 0))
-    pthread_cancel_init ();
-
-  void (*resume) (struct _Unwind_Exception *exc) = libgcc_s_resume;
-  PTR_DEMANGLE (resume);
-  resume (exc);
-}
-
-_Unwind_Reason_Code
-__gcc_personality_v0 (int version, _Unwind_Action actions,
-		      _Unwind_Exception_Class exception_class,
-                      struct _Unwind_Exception *ue_header,
-                      struct _Unwind_Context *context)
-{
-  if (__builtin_expect (libgcc_s_handle == NULL, 0))
-    pthread_cancel_init ();
-
-  _Unwind_Reason_Code (*personality)
-    (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *,
-     struct _Unwind_Context *) = libgcc_s_personality;
-  PTR_DEMANGLE (personality);
-  return personality (version, actions, exception_class, ue_header, context);
-}
-
-_Unwind_Reason_Code
-_Unwind_ForcedUnwind (struct _Unwind_Exception *exc, _Unwind_Stop_Fn stop,
-		      void *stop_argument)
-{
-  if (__builtin_expect (libgcc_s_handle == NULL, 0))
-    pthread_cancel_init ();
-
-  _Unwind_Reason_Code (*forcedunwind)
-    (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *)
-    = libgcc_s_forcedunwind;
-  PTR_DEMANGLE (forcedunwind);
-  return forcedunwind (exc, stop, stop_argument);
-}
-
-_Unwind_Word
-_Unwind_GetCFA (struct _Unwind_Context *context)
-{
-  if (__builtin_expect (libgcc_s_handle == NULL, 0))
-    pthread_cancel_init ();
-
-  _Unwind_Word (*getcfa) (struct _Unwind_Context *) = libgcc_s_getcfa;
-  PTR_DEMANGLE (getcfa);
-  return getcfa (context);
-}
diff --git a/sysdeps/unix/sysv/linux/hppa/nptl/unwind-resume.c b/sysdeps/unix/sysv/linux/hppa/nptl/unwind-resume.c
deleted file mode 100644
index a31ba1a..0000000
--- a/sysdeps/unix/sysv/linux/hppa/nptl/unwind-resume.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/* Copyright (C) 2003, 2009 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>.
-
-   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,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#include <dlfcn.h>
-#include <stdio.h>
-#include <unwind.h>
-
-#define LIBGCC_S_SO "libgcc_s.so.4"
-
-static void (*libgcc_s_resume) (struct _Unwind_Exception *exc);
-static _Unwind_Reason_Code (*libgcc_s_personality)
-  (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *,
-   struct _Unwind_Context *);
-
-static void
-init (void)
-{
-  void *resume, *personality;
-  void *handle;
-
-  handle = __libc_dlopen (LIBGCC_S_SO);
-
-  if (handle == NULL
-      || (resume = __libc_dlsym (handle, "_Unwind_Resume")) == NULL
-      || (personality = __libc_dlsym (handle, "__gcc_personality_v0")) == NULL)
-    __libc_fatal (LIBGCC_S_SO " must be installed for pthread_cancel to work\n");
-
-  libgcc_s_resume = resume;
-  libgcc_s_personality = personality;
-}
-
-void
-_Unwind_Resume (struct _Unwind_Exception *exc)
-{
-  if (__builtin_expect (libgcc_s_resume == NULL, 0))
-    init ();
-  libgcc_s_resume (exc);
-}
-
-_Unwind_Reason_Code
-__gcc_personality_v0 (int version, _Unwind_Action actions,
-		      _Unwind_Exception_Class exception_class,
-                      struct _Unwind_Exception *ue_header,
-                      struct _Unwind_Context *context)
-{
-  if (__builtin_expect (libgcc_s_personality == NULL, 0))
-    init ();
-  return libgcc_s_personality (version, actions, exception_class,
-			       ue_header, context);
-}