Move gthr to toplevel libgcc

	gcc:
	* gthr-single.h, gthr.h: Move to ../libgcc.
	* gthr-aix.h: Move to ../libgcc/config/rs6000.
	* gthr-dce.h: Move to ../libgcc/config/pa.
	* gthr-lynx.h: Move to ../libgcc/config.
	* gthr-mipssde.h: Move to ../libgcc/config/mips.
	* gthr-posix.h: Move to ../libgcc/config.
	* gthr-rtems.h: Likewise.
	* gthr-tpf.h: Move to ../libgcc/config/s390.
	* gthr-vxworks.h: Move to ../libgcc/config.
	* gthr-win32.h: Move to ../libgcc/config/i386.
	* configure.ac (gthread_flags): Remove
	(gthr-default.h): Don't create.
	(thread_file): Don't substitute.
	* configure: Regenerate.
	* Makefile.in (GCC_THREAD_FILE): Remove.
	(GTHREAD_FLAGS): Remove.
	(libgcc.mvars): Remove GTHREAD_FLAGS.
	* config/t-vxworks (EXTRA_HEADERS): Remove.

	gcc/po:
	* EXCLUDES (gthr-aix.h, gthr-dce.h, gthr-posix.c, gthr-posix.h)
	(gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h)
	(gthr-win32.h, gthr.h): Remove.

	libgcc:
	* gthr-single.h, gthr.h: New files.
	* config/gthr-lynx.h, config/gthr-posix.h.,...

gcc/ChangeLog

+2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* gthr-single.h, gthr.h: Move to ../libgcc.
+	* gthr-aix.h: Move to ../libgcc/config/rs6000.
+	* gthr-dce.h: Move to ../libgcc/config/pa.
+	* gthr-lynx.h: Move to ../libgcc/config.
+	* gthr-mipssde.h: Move to ../libgcc/config/mips.
+	* gthr-posix.h: Move to ../libgcc/config.
+	* gthr-rtems.h: Likewise.
+	* gthr-tpf.h: Move to ../libgcc/config/s390.
+	* gthr-vxworks.h: Move to ../libgcc/config.
+	* gthr-win32.h: Move to ../libgcc/config/i386.
+	* configure.ac (gthread_flags): Remove
+	(gthr-default.h): Don't create.
+	(thread_file): Don't substitute.
+	* configure: Regenerate.
+	* Makefile.in (GCC_THREAD_FILE): Remove.
+	(GTHREAD_FLAGS): Remove.
+	(libgcc.mvars): Remove GTHREAD_FLAGS.
+	* config/t-vxworks (EXTRA_HEADERS): Remove.
+
 2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 	    Paolo Bonzini  <bonzini@gnu.org>

gcc/Makefile.in

@@ -532,9 +532,7 @@ lang_opt_files=@lang_opt_files@ $(srcdir)/c-family/c.opt $(srcdir)/common.opt
 lang_specs_files=@lang_specs_files@
 lang_tree_files=@lang_tree_files@
 target_cpu_default=@target_cpu_default@
-GCC_THREAD_FILE=@thread_file@
 OBJC_BOEHM_GC=@objc_boehm_gc@
-GTHREAD_FLAGS=@gthread_flags@
 extra_modes_file=@extra_modes_file@
 extra_opt_files=@extra_opt_files@
 host_hook_obj=@out_host_hook_obj@
@@ -1808,7 +1806,6 @@ libgcc-support: libgcc.mvars stmp-int-hdrs $(TCONFIG_H) \
 libgcc.mvars: config.status Makefile specs xgcc$(exeext)
 	: > tmp-libgcc.mvars
 	echo GCC_CFLAGS = '$(GCC_CFLAGS)' >> tmp-libgcc.mvars
-	echo GTHREAD_FLAGS = '$(GTHREAD_FLAGS)' >> tmp-libgcc.mvars
 	echo INHIBIT_LIBC_CFLAGS = '$(INHIBIT_LIBC_CFLAGS)' >> tmp-libgcc.mvars
 	echo TARGET_SYSTEM_ROOT = '$(TARGET_SYSTEM_ROOT)' >> tmp-libgcc.mvars
 

gcc/config/t-vxworks

@@ -17,10 +17,6 @@
 # along with GCC; see the file COPYING3.  If not see
 # <http://www.gnu.org/licenses/>.
 
-# Some runtime modules need these.  Can't set extra_headers in config.gcc
-# because the paths are always made absolute to the cpu config dir.
-EXTRA_HEADERS += $(srcdir)/gthr-vxworks.h gthr-default.h
-
 # Both the kernel and RTP headers provide limits.h.
 LIMITS_H_TEST = true
 

gcc/configure

@@ -621,7 +621,6 @@ tm_p_file_list
 tm_defines
 tm_include_list
 tm_file_list
-thread_file
 common_out_object_file
 common_out_file
 out_object_file
@@ -724,7 +723,6 @@ LIBINTL
 USE_NLS
 extra_opt_files
 extra_modes_file
-gthread_flags
 NATIVE_SYSTEM_HEADER_DIR
 objext
 manext
@@ -11353,19 +11351,6 @@ if test x${thread_file} = x; then
   thread_file=${target_thread_file}
 fi
-# Make gthr-default.h if we have a thread file.
-gthread_flags=
-if test $thread_file != single; then
-  echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h-t
-  if diff gthr-default.h-t gthr-default.h 2>/dev/null; then
-    rm -f gthr-default.h-t
-  else
-    mv -f gthr-default.h-t gthr-default.h
-  fi
-  gthread_flags=-DHAVE_GTHR_DEFAULT
-fi
-
-
 # --------
 # UNSORTED
 # --------
@@ -18059,7 +18044,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 18062 "configure"
+#line 18047 "configure"
 #include "confdefs.h"
 #if HAVE_DLFCN_H
@@ -18165,7 +18150,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 18168 "configure"
+#line 18153 "configure"
 #include "confdefs.h"
 #if HAVE_DLFCN_H
@@ -27005,7 +26990,6 @@ fi
-
 # Echo link setup.

gcc/configure.ac

@@ -1416,19 +1416,6 @@ if test x${thread_file} = x; then
   thread_file=${target_thread_file}
 fi
 
-# Make gthr-default.h if we have a thread file.
-gthread_flags=
-if test $thread_file != single; then
-  echo "#include \"gthr-${thread_file}.h\"" > gthr-default.h-t
-  if diff gthr-default.h-t gthr-default.h 2>/dev/null; then
-    rm -f gthr-default.h-t
-  else
-    mv -f gthr-default.h-t gthr-default.h
-  fi
-  gthread_flags=-DHAVE_GTHR_DEFAULT
-fi
-AC_SUBST(gthread_flags)
-
 # --------
 # UNSORTED
 # --------
@@ -4961,7 +4948,6 @@ AC_SUBST(out_file)
 AC_SUBST(out_object_file)
 AC_SUBST(common_out_file)
 AC_SUBST(common_out_object_file)
-AC_SUBST(thread_file)
 AC_SUBST(tm_file_list)
 AC_SUBST(tm_include_list)
 AC_SUBST(tm_defines)

gcc/po/ChangeLog

+2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* EXCLUDES (gthr-aix.h, gthr-dce.h, gthr-posix.c, gthr-posix.h)
+	(gthr-rtems.h, gthr-single.h, gthr-solaris.h, gthr-vxworks.h)
+	(gthr-win32.h, gthr.h): Remove.
+
 2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* EXCLUDES (config/vxlib.c, gbl-ctors.h, libgcc2.c, libgcc2.h)

gcc/po/EXCLUDES

@@ -24,16 +24,6 @@
 #   These files are part of libgcc, or target headers provided by gcc.
 gcov-io.h
 gcov-iov.c
-gthr-aix.h
-gthr-dce.h
-gthr-posix.c
-gthr-posix.h
-gthr-rtems.h
-gthr-single.h
-gthr-solaris.h
-gthr-vxworks.h
-gthr-win32.h
-gthr.h
 limitx.h
 limity.h
 

libgcc/ChangeLog

+2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* gthr-single.h, gthr.h: New files.
+	* config/gthr-lynx.h, config/gthr-posix.h., config/gthr-rtems.h,
+	config/gthr-vxworks.h, config/i386/gthr-win32.h,
+	config/mips/gthr-mipssde.h, config/pa/gthr-dce.h,
+	config/rs6000/gthr-aix.h, config/s390/gthr-tpf.h: New files.
+	* config/i386/gthr-win32.c: Include "gthr-win32.h".
+	* configure.ac (thread_header): New variable.
+	Set it depending on target_thread_file.
+	(gthr-default.h): Link from $thread_header.
+	* configure: Regenerate.
+	* Makefile.in (LIBGCC2_CFLAGS): Remove $(GTHREAD_FLAGS).
+
 2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* configure.ac (tm_file_): New variable.

libgcc/Makefile.in

@@ -223,8 +223,7 @@ endif
 #
 LIBGCC2_DEBUG_CFLAGS = -g
 LIBGCC2_CFLAGS = -O2 $(LIBGCC2_INCLUDES) $(GCC_CFLAGS) $(HOST_LIBGCC2_CFLAGS) \
-		 $(LIBGCC2_DEBUG_CFLAGS) $(GTHREAD_FLAGS) \
-		 -DIN_LIBGCC2 \
+		 $(LIBGCC2_DEBUG_CFLAGS) -DIN_LIBGCC2 \
 		 -fbuilding-libgcc -fno-stack-protector \
 		 $(INHIBIT_LIBC_CFLAGS)
 

gcc/gthr-lynx.h → libgcc/config/gthr-lynx.h

 /* Threads compatibility routines for libgcc2 and libobjc for
    LynxOS.  */
 /* Compile this one with gcc.  */
-/* Copyright (C) 2004, 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2008, 2009, 2011 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -52,7 +52,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #undef  GTHREAD_USE_WEAK
 #define GTHREAD_USE_WEAK 0
 
-#include "gthr-posix.h"
+#include "config/gthr-posix.h"
 
 #else
 #include "gthr-single.h"

gcc/gthr-vxworks.h → libgcc/config/gthr-vxworks.h

 /* Threads compatibility routines for libgcc2 and libobjc for VxWorks.  */
 /* Compile this one with gcc.  */
-/* Copyright (C) 1997, 1999, 2000, 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1999, 2000, 2008, 2009, 2011
+   Free Software Foundation, Inc.
    Contributed by Mike Stump <mrs@wrs.com>.
 
 This file is part of GCC.
@@ -30,7 +31,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #ifdef _LIBOBJC
 
 /* libobjc requires the optional pthreads component.  */
-#include "gthr-posix.h"
+#include "config/gthr-posix.h"
 
 #else
 #ifdef __cplusplus

libgcc/config/i386/gthr-win32.c

 /* Implementation of W32-specific threads compatibility routines for
    libgcc2.  */
 
-/* Copyright (C) 1999, 2000, 2002, 2004, 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2000, 2002, 2004, 2008, 2009, 2011
+   Free Software Foundation, Inc.
    Contributed by Mumit Khan <khan@xraylith.wisc.edu>.
    Modified and moved to separate file by Danny Smith
    <dannysmith@users.sourceforge.net>.
@@ -33,7 +34,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #endif
 #undef  __GTHREAD_I486_INLINE_LOCK_PRIMITIVES
 #define __GTHREAD_I486_INLINE_LOCK_PRIMITIVES
-#include <gthr-win32.h>
+#include "gthr-win32.h"
 
 /* Windows32 threads specific definitions. The windows32 threading model
    does not map well into pthread-inspired gcc's threading model, and so 

gcc/gthr-aix.h → libgcc/config/rs6000/gthr-aix.h

 /* Threads compatibility routines for libgcc2 and libobjc.  */
 /* Compile this one with gcc.  */
-/* Copyright (C) 2000, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2009, 2011 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -27,7 +27,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define GCC_GTHR_AIX_H
 
 #ifdef _THREAD_SAFE
-#include "gthr-posix.h"
+#include "config/gthr-posix.h"
 #else
 #include "gthr-single.h"
 #endif

libgcc/configure

@@ -2273,7 +2273,7 @@ case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 
 
 
-  # FIXME: Do we need something for CFLAGS below?
+
 
 case "${host}" in
     # PIC is the default on some targets or must not be used.
@@ -2288,24 +2288,23 @@ case "${host}" in
     hppa*64*-*-hpux*)
 	# PIC is the default for 64-bit PA HP-UX.
 	;;
-    i3456786-*-cygwin* | i3456786-*-mingw* | x86_64-*-mingw*)
+    i[34567]86-*-cygwin* | i[34567]86-*-mingw* | x86_64-*-mingw*)
 	;;
-    i3456786-*-interix3*)
+    i[34567]86-*-interix3*)
 	# Interix 3.x gcc -fpic/-fPIC options generate broken code.
 	# Instead, we relocate shared libraries at runtime.
 	;;
-    i3456786-*-nto-qnx*)
+    i[34567]86-*-nto-qnx*)
 	# QNX uses GNU C++, but need to define -shared option too, otherwise
 	# it will coredump.
 	PICFLAG='-fPIC -shared'
 	;;
-    i3456786-pc-msdosdjgpp*)
+    i[34567]86-pc-msdosdjgpp*)
 	# DJGPP does not support shared libraries at all.
 	;;
     ia64*-*-hpux*)
 	# On IA64 HP-UX, PIC is the default but the pic flag
 	# sets the default TLS model and affects inlining.
-	# FIXME: Still in gcc 4.7?
 	PICFLAG=-fPIC
 	;;
     mips-sgi-irix6*)
@@ -2317,7 +2316,7 @@ case "${host}" in
 
     # Some targets support both -fPIC and -fpic, but prefer the latter.
     # FIXME: Why?
-    i3456786-*-* | x86_64-*-*)
+    i[34567]86-*-* | x86_64-*-*)
 	PICFLAG=-fpic
 	;;
     m68k-*-*)
@@ -2327,7 +2326,7 @@ case "${host}" in
 	PICFLAG=-fpic
 	;;
     # FIXME: Override -fPIC default in libgcc only?
-    sh-*-linux* | sh2346lbe*-*-linux*)
+    sh-*-linux* | sh[2346lbe]*-*-linux*)
 	PICFLAG=-fpic
 	;;
     # FIXME: Simplify to sh*-*-netbsd*?
@@ -2335,22 +2334,22 @@ case "${host}" in
       sh64-*-netbsd* | sh64l*-*-netbsd*)
 	PICFLAG=-fpic
 	;;
-    sparc*-*-*)
-	# FIXME: This could be done everywhere -fpic and -fPIC differ.
-	case "${CFLAGS}" in
-	    *-fpic*)
-		PICFLAG=-fpic
-		;;
-	    *)
-		PICFLAG=-fPIC
-		;;
-	esac ;;
     # Default to -fPIC unless specified otherwise.
     *)
 	PICFLAG=-fPIC
 	;;
 esac
 
+# If the user explicitly uses -fpic/-fPIC, keep that.
+case "${CFLAGS}" in
+    *-fpic*)
+	PICFLAG=-fpic
+	;;
+    *-fPIC*)
+	PICFLAG=-fPIC
+	;;
+esac
+
 
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for --enable-version-specific-runtime-libs" >&5
@@ -4797,6 +4796,20 @@ tm_file="${tm_file_}"
 
 
 
+# Map from thread model to thread header.
+case $target_thread_file in
+    aix)	thread_header=config/rs6000/gthr-aix.h ;;
+    dce)	thread_header=config/pa/gthr-dce.h ;;
+    lynx)	thread_header=config/gthr-lynx.h ;;
+    mipssde)	thread_header=config/mips/gthr-mipssde.h ;;
+    posix)	thread_header=config/gthr-posix.h ;;
+    rtems)	thread_header=config/gthr-rtems.h ;;
+    single)	thread_header=gthr-single.h ;;
+    tpf)	thread_header=config/s390/gthr-tpf.h ;;
+    vxworks)	thread_header=config/gthr-vxworks.h ;;
+    win32)	thread_header=config/i386/gthr-win32.h ;;
+esac
+
 # Substitute configuration variables
 
 
@@ -4809,6 +4822,8 @@ ac_config_links="$ac_config_links md-unwind-support.h:config/$md_unwind_header"
 
 ac_config_links="$ac_config_links sfp-machine.h:config/$sfp_machine_header"
 
+ac_config_links="$ac_config_links gthr-default.h:$thread_header"
+
 
 # We need multilib support.
 ac_config_files="$ac_config_files Makefile"
@@ -5538,6 +5553,7 @@ do
     "unwind.h") CONFIG_LINKS="$CONFIG_LINKS unwind.h:$unwind_header" ;;
     "md-unwind-support.h") CONFIG_LINKS="$CONFIG_LINKS md-unwind-support.h:config/$md_unwind_header" ;;
     "sfp-machine.h") CONFIG_LINKS="$CONFIG_LINKS sfp-machine.h:config/$sfp_machine_header" ;;
+    "gthr-default.h") CONFIG_LINKS="$CONFIG_LINKS gthr-default.h:$thread_header" ;;
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
     "default") CONFIG_COMMANDS="$CONFIG_COMMANDS default" ;;