Remove obsolete Tru64 UNIX V5.1B support

	libstdc++-v3:
	* configure.host: Remove osf* handling.
	* config/os/osf: Remove.
	* doc/xml/manual/using.xml: Remove OSF reference.

	* testsuite/18_support/pthread_guard.cc: Remove alpha*-*-osf*
	handling.
	* testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
	Likewise.
	* testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc:
	Likewise.
	* testsuite/21_strings/basic_string/pthread18185.cc: Likewise.
	* testsuite/21_strings/basic_string/pthread4.cc: Likewise.
	* testsuite/22_locale/locale/cons/12658_thread-1.cc: Likewise.
	* testsuite/22_locale/locale/cons/12658_thread-2.cc: Likewise.
	* testsuite/23_containers/list/pthread1.cc: Likewise.
	* testsuite/23_containers/list/pthread5.cc: Likewise.
	* testsuite/23_containers/map/pthread6.cc: Likewise.
	* testsuite/23_containers/vector/debug/multithreaded_swap.cc:
	Likewise.
	* testsuite/27_io/basic_ofstream/pthread2.cc: Likewise.
	* testsuite/27_io/basic_ostringstream/pthread3.cc: Likewise.
	* testsuite/30_threads/async/42819.cc: Likewise.

	* libstdc++-v3/testsuite/30_threads/async/49668.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/async/any.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/async/async.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/async/launch.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/async/sync.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/call_once/39909.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/call_once/49668.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/call_once/call_once1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable/cons/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable/members/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable/members/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable_any/50862.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable_any/cons/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable_any/members/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/condition_variable_any/members/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/future/cons/move.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/45133.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/get.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/get2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/share.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/valid.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/wait.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/wait_for.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/future/members/wait_until.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/lock/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/lock/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/lock/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/lock_guard/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/dest/destructor_locked.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/mutex/unlock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/49668.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/alloc.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/move.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/cons/move_assign.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/get_future.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/get_future2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke3.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke4.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/invoke5.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/reset.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/reset2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/swap.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/packaged_task/members/valid.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/cons/alloc.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/cons/move.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/cons/move_assign.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/get_future.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/get_future2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_exception2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_value.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_value2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/set_value3.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/promise/members/swap.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/cons/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/lock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/native_handle/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/try_lock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/try_lock/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_mutex/unlock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/cons/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/dest/destructor_locked.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/lock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/lock/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/recursive_timed_mutex/unlock/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/cons/move.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/45133.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/get.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/get2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/valid.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/wait.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/wait_for.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/shared_future/members/wait_until.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/this_thread/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/this_thread/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/this_thread/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/this_thread/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/49668.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/5.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/6.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/7.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/8.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/9.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/cons/moveable.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/5.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/members/hardware_concurrency.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/thread/swap/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/dest/destructor_locked.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/native_handle/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/native_handle/typesizes.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_for/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_for/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_for/3.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_until/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/try_lock_until/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/try_lock/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/try_lock/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/try_lock/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/try_lock/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/modifiers/1.cc:
	Likewise.
	* libstdc++-v3/testsuite/30_threads/unique_lock/modifiers/2.cc:
	Likewise.
	* libstdc++-v3/testsuite/ext/rope/pthread7-rope.cc: Likewise.
	* libstdc++-v3/testsuite/tr1/2_general_utilities/shared_ptr/thread/default_weaktoshared.cc:
	Likewise.
	* libstdc++-v3/testsuite/tr1/2_general_utilities/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.

	libobjc:
	* configure.ac (enable_objc_gc): Remove alpha*-dec-osf* handling.
	* configure: Regenerate.

	* thr.c (_XOPEN_SOURCE): Define unconditionally.

	libjava:
	* configure.ac (alpha*-dec-osf*): Remove.
	* configure: Regenerate.
	* configure.host (alpha*-dec-osf*): Remove.

	* gnu/java/net/natPlainDatagramSocketImplPosix.cc (setOption): Use
	IPV6_MULTICAST_IF unconditionally.
	* gnu/java/net/natPlainDatagramSocketImplWin32.cc (setOption):
	Likewise.
	* gnu/java/net/natPlainSocketImplPosix.cc
	(gnu::java::net::PlainSocketImpl::accept): Use ::accept instead of
	_Jv_accept.
	* include/posix-signal.h [__alpha__ && __osf__]: Remove.
	* include/posix.h (_POSIX_PII_SOCKET): Don't define.
	(_Jv_accept): Remove.

	* java/io/File.java (File._access): Rename to access.
	Change callers.
	(File._stat): Likewise.
	* java/io/File.h: Regenerate.
	* classpath/lib/java/io/File.class: Regenerate.
	* java/io/natFilePosix.cc (java::io::File::_access): Rename to
	access.
	(java::io::File::_stat): Rename to stat.
	* java/io/natFileWin32.cc: Likewise.

	* testsuite/libjava.jni/jni.exp (gcj_jni_get_cxxflags_invocation):
	Remove alpha*-dec-osf* handling.
	* testsuite/libjava.jvmti/jvmti-interp.exp
	(gcj_jni_compile_c_to_so): Likewise.
	* testsuite/libjava.jvmti/jvmti.exp (gcj_jvmti_compile_cxx_to_o):
	Likewise.

	libitm:
	* configure.tgt (*-*-osf*): Remove.
	* configure: Regenerate.

	libgomp:
	* configure.tgt (alpha*-dec-osf*): Remove.

	* config/osf/sem.h: Remove.
	* config/posix/lock.c (_XOPEN_SOURCE): Define unconditionally.

	libgfortran:
	* configure.ac: Remove Tru64 reference.
	* acinclude.m4 (LIBGFOR_GTHREAD_WEAK): Remove alpha*-dec-osf*
	handling.
	* configure: Regenerate.
	* intrinsics/c99_functions.c [__osf__]: Remove.

	libgcc:
	* config.host: Remove alpha*-dec-osf5.1* handling.
	* config/alpha/gthr-posix.c: Remove.
	* config/alpha/libgcc-osf5.ver: Remove.
	* config/alpha/osf5-unwind.h: Remove.
	* config/alpha/t-osf-pthread: Remove.
	* config/alpha/t-slibgcc-osf: Remove.
	* config/t-crtfm (crtfastmath.o): Remove -frandom-seed.
	* gthr-posix.h [!_REENTRANT && __osf__] (_REENTRANT): Don't define.
	[__osf__ && _PTHREAD_USE_MANGLED_NAMES_]: Remove.
	* mkmap-flat.awk: Remove osf_export handling.

	gnattools:
	* configure.ac: Remove alpha*-dec-osf* handling.
	* configure: Regenerate.

	gcc/testsuite:
	* g++.dg/abi/rtti3.C: Remove alpha*-dec-osf* handling.
	* g++.dg/abi/thunk4.C: Likewise.
	* g++.dg/cdce3.C: Don't skip on*-dec-osf5*.
	Adapt line numbers.
	* g++.dg/compat/struct-layout-1_generate.c: Remove alpha*-dec-osf*
	handling.
	* g++.dg/cpp0x/constexpr-rom.C: Likewise.
	* g++.dg/eh/spbp.C: Likewise.
	* g++.dg/ext/label13.C: Likewise.
	* g++.dg/guality/guality.exp: Likewise.
	* g++.dg/other/anon5.C: Likewise.
	* g++.dg/other/pragma-ep-1.C: Remove.
	* g++.dg/warn/miss-format-1.C: Remove alpha*-dec-osf* handling.
	* g++.dg/warn/pr31246.C: Likewise.
	* g++.dg/warn/weak1.C: Likewise.
	* g++.old-deja/g++.eh/badalloc1.C: Likewise.
	* g++.old-deja/g++.ext/attrib5.C: Likewise.
	* gcc.c-torture/compile/limits-declparen.c: Likewise.
	* gcc.c-torture/compile/limits-pointer.c: Likewise.
	* gcc.c-torture/execute/20001229-1.c: Remove __osf__ handling.
	* gcc.dg/attr-weakref-1.c: Remove alpha*-dec-osf* handling.
	* gcc.dg/c99-stdint-6.c: Remove alpha*-dec-osf5* handling.
	* gcc.dg/c99-tgmath-1.c: Likewise.
	* gcc.dg/c99-tgmath-2.c: Likewise.
	* gcc.dg/c99-tgmath-3.c: Likewise.
	* gcc.dg/c99-tgmath-4.c: Likewise.
	* gcc.dg/compat/struct-layout-1_generate.c: Remove alpha*-dec-osf*
	handling.
	* gcc.dg/debug/pr49032.c: Likewise.
	* gcc.dg/guality/guality.exp: Likewise.
	* gcc.dg/intmax_t-1.c: Likewise.
	* gcc.dg/pr48616.c: Likewise.
	* gcc.dg/pragma-ep-1.c: Remove.
	* gcc.dg/pragma-ep-2.c: Remove.
	* gcc.dg/pragma-ep-3.c: Remove.
	* gcc.dg/torture/pr47917.c: Remove alpha*-dec-osf5* handling.
	* gcc.dg/tree-ssa/pr42585.c: Remove alpha*-dec-osf* handling.
	* gcc.misc-tests/gcov-14.c: Likewise.
	* gfortran.dg/guality/guality.exp: Likewise.
	* lib/target-supports.exp (check_weak_available): Likewise.
	(add_options_for_tls): Likewise.
	(check_ascii_locale_available): Likewise.
	* obj-c++.dg/dwarf-2.mm: Likewise.
	* objc.dg/dwarf-1.m: Likewise.
	* objc.dg/dwarf-2.m: Likewise.

	gcc/c-family:
	* c-cppbuiltin.c (c_cpp_builtins): Remove #pragma extern_prefix
	handling.
	* c-pragma.c (handle_pragma_extern_prefix): Remove.
	(init_pragma): Don't register extern_prefix.

	gcc/po:
	* EXCLUDES (mips-tdump.c, mips-tfile.c): Remove.

	gcc:
	* config.gcc (alpha*-dec-osf5.1*): Remove.
	* config.host (alpha*-dec-osf*): Remove.
	* configure.ac (*-*-osf*): Remove.
	(alpha*-dec-osf*): Remove.
	* configure: Regenerate.

	* config/alpha/host-osf.c, config/alpha/osf5.h,
	config/alpha/osf5.opt, config/alpha/va_list.h, config/alpha/x-osf:
	Remove.

	* config/alpha/alpha.h (TARGET_LD_BUGGY_LDGP): Remove.
	* config/alpha/alpha.c (struct machine_function): Update comment.
	(alpha_start_function): Remove Tru64 UNIX as handling for
	max_frame_size.
	* config/alpha/alpha.md ("exception_receiver"): Remove
	TARGET_LD_BUGGY_LDGP.
	("*exception_receiver_2"): Likewise.
	* except.c (finish_eh_generation): Remove Tru64 reference.
	* ginclude/stdarg.h [_HIDDEN_VA_LIST]: Don't undef _VA_LIST.
	* system.h (TARGET_HANDLE_PRAGMA_EXTERN_PREFIX): Poison.
	* target.def (handle_pragma_extern_prefix): Remove.

	* Makefile.in (mips-tfile.o-warn): Remove.
	(ALL_HOST_BACKEND_OBJS): Remove mips-tfile.o, mips-tdump.o.
	(mips-tfile, mips-tfile.o, mips-tdump, mips-tdump.o): Remove.
	* mips-tdump.c, mips-tfile.c: Remove.

	* doc/extend.texi (Symbol-Renaming Pragmas): Remove #pragma
	extern_prefix.
	* doc/install.texi (Binaries): Remove Tru64 UNIX reference.
	(Specific, alpha*-dec-osf5.1): Note removal.
	* doc/tm.texi.in (Misc, TARGET_HANDLE_PRAGMA_EXTERN_PREFIX):
	Remove.
	* doc/tm.texi: Regenerate.
	* doc/trouble.texi (Cross-Compiler Problems): Remove.

	gcc/ada:
	* gcc-interface/Makefile.in (alpha*-dec-osf*): Remove.
	* a-intnam-tru64.ads, mlib-tgt-specific-tru64.adb,
	s-mastop-tru64.adb, s-osinte-tru64.adb, s-osinte-tru64.ads,
	s-taprop-tru64.adb, s-tasinf-tru64.ads, s-taspri-tru64.ads,
	system-tru64.ads: Remove.

	* adaint.c (__gnat_number_of_cpus) [__alpha__ && __osf__]:
	Remove.
	[IS_CROSS] [!(__alpha__ && __osf__)]: Remove.
	* env.c [__alpha__ && __osf__]: Remove.
	* gsocket.h (_OSF_SOURCE): Remove.
	(HAVE_THREAD_SAFE_GETxxxBYyyy) [__osf__]: Remove.
	* init.c [__alpha__ && __osf__]: Remove.
	* link.c [__osf__]: Remove.
	* s-oscons-tmplt.c [__alpha__ && __osf__]: Remove.
	[__osf__ && !_SS_MAXSIZE]: Remove.
	* sysdep.c [__osf__]: Remove.
	* terminals.c [__alpha__ && __osf__]: Remove.
	[OSF1]: Remove.

	* g-traceb.ads: Remove Tru64 reference.
	* g-trasym.ads: Likewise.
	* gnat_ugn.texi (Linking a Mixed C++ & Ada Program): Likewise.
	(Summary of Run-Time Configurations): Likewise.
	* memtrack.adb: Likewise.

	fixincludes:
	* inclhack.def (alpha___extern_prefix): Remove.
	(alpha___extern_prefix_standards): Remove.
	(alpha___extern_prefix_sys_stat): Remove.
	(alpha_bad_lval): Remove.
	(alpha_pthread): Remove.
	(alpha_pthread_gcc): Remove.
	(alpha_pthread_init): Remove.
	* fixincl.x: Regenerate.
	* tests/base/pthread.h [ALPHA_PTHREAD_CHECK]: Remove.
	[ALPHA_PTHREAD_GCC_CHECK]: Remove.
	[ALPHA_PTHREAD_INIT_CHECK]: Remove.
	* tests/base/standards.h: Remove.
	* tests/base/sys/stat.h [ALPHA___EXTERN_PREFIX_SYS_STAT_CHECK]:
	Remove.
	* tests/base/testing.h [ALPHA___EXTERN_PREFIX_CHECK]: Remove.
	[ALPHA_BAD_LVAL_CHECK]: Remove.

	contrib:
	* config-list.mk (LIST): Remove alpha-dec-osf5.1.

	config:
	* weakref.m4 (GCC_CHECK_ELF_STYLE_WEAKREF): Remove
	alpha*-dec-osf*.

	toplevel:
	* MAINTAINERS (OS Port Maintainers): Remove osf.
	* configure.ac (enable_libgomp): Remove *-*-osf*.
	(with_stabs): Remove alpha*-*-osf*.
	* configure: Regenerate.

From-SVN: r185240

10 files changed, 20 insertions, 756 deletions

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index a329484..0037eaa 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,16 @@
+2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* config.host: Remove alpha*-dec-osf5.1* handling.
+	* config/alpha/gthr-posix.c: Remove.
+	* config/alpha/libgcc-osf5.ver: Remove.
+	* config/alpha/osf5-unwind.h: Remove.
+	* config/alpha/t-osf-pthread: Remove.
+	* config/alpha/t-slibgcc-osf: Remove.
+	* config/t-crtfm (crtfastmath.o): Remove -frandom-seed.
+	* gthr-posix.h [!_REENTRANT && __osf__] (_REENTRANT): Don't define.
+	[__osf__ && _PTHREAD_USE_MANGLED_NAMES_]: Remove.
+	* mkmap-flat.awk: Remove osf_export handling.
+
 2012-03-12  Richard Guenther  <rguenther@suse.de>
 
 	* gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification.
diff --git a/libgcc/config.host b/libgcc/config.host
index 257622a..2fe4e34 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -266,8 +266,7 @@ case ${host} in
 esac
 
 case ${host} in
-*-*-darwin* | *-*-freebsd* | *-*-netbsd* | *-*-openbsd* | *-*-solaris2* | \
-  alpha*-dec-osf5.1*)
+*-*-darwin* | *-*-freebsd* | *-*-netbsd* | *-*-openbsd* | *-*-solaris2*)
   enable_execute_stack=enable-execute-stack-mprotect.c
   ;;
 i[34567]86-*-mingw* | x86_64-*-mingw*)
@@ -294,16 +293,6 @@ alpha*-*-netbsd*)
 alpha*-*-openbsd*)
 	tmake_file="${tmake_file} alpha/t-alpha alpha/t-ieee"
 	;;
-alpha*-dec-osf5.1*)
-	tmake_file="${tmake_file} alpha/t-alpha alpha/t-ieee t-crtfm t-slibgcc alpha/t-slibgcc-osf"
-	case ${target_thread_file} in
-	  posix)
-	    tmake_file="${tmake_file} alpha/t-osf-pthread"
-	    ;;
-	esac
-	extra_parts="${extra_parts} crtfastmath.o"
-	md_unwind_header=alpha/osf5-unwind.h
-	;;
 alpha64-dec-*vms*)
 	tmake_file="$tmake_file alpha/t-alpha alpha/t-ieee alpha/t-vms t-slibgcc-vms"
 	extra_parts="$extra_parts vms-dwarf2.o vms-dwarf2eh.o"
diff --git a/libgcc/config/alpha/gthr-posix.c b/libgcc/config/alpha/gthr-posix.c
deleted file mode 100644
index 02681a4..0000000
--- a/libgcc/config/alpha/gthr-posix.c
+++ /dev/null
@@ -1,266 +0,0 @@
-/* POSIX threads dummy routines for systems without weak definitions.  */
-/* Compile this one with gcc.  */
-/* Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2011
-   Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 3, or (at your option) any later
-version.
-
-GCC 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 General Public License
-for more details.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
-<http://www.gnu.org/licenses/>.  */
-
-#include "tconfig.h"
-#include "tm.h"
-#include "libgcc_tm.h"
-# define __gthrw_pragma(pragma) _Pragma (#pragma)
-/* Define so we provide weak definitions of functions used by libobjc only.  */
-#define _LIBOBJC_WEAK
-#include "gthr.h"
-
-int
-pthread_once (pthread_once_t *once ATTRIBUTE_UNUSED,
-	      void (*func) (void) ATTRIBUTE_UNUSED)
-{
-  return -1;
-}
-
-int
-pthread_key_create (pthread_key_t *key ATTRIBUTE_UNUSED,
-		    void (*dtor) (void *) ATTRIBUTE_UNUSED)
-{
-  return -1;
-}
-
-int
-pthread_key_delete (pthread_key_t key ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-void *
-pthread_getspecific (pthread_key_t key ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_setspecific (pthread_key_t key ATTRIBUTE_UNUSED,
-		     const void *ptr ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_create (pthread_t *thread ATTRIBUTE_UNUSED,
-		const pthread_attr_t *attr ATTRIBUTE_UNUSED,
-		void *(*start_routine) (void *) ATTRIBUTE_UNUSED,
-		void *arg ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_join (pthread_t thread ATTRIBUTE_UNUSED,
-	      void **value_ptr ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-void
-pthread_exit (void *value_ptr ATTRIBUTE_UNUSED)
-{
-}
-
-int
-pthread_detach (pthread_t thread ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_cancel (pthread_t thread ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_mutex_lock (pthread_mutex_t *mutex ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_mutex_trylock (pthread_mutex_t *mutex ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-#ifdef _POSIX_TIMEOUTS
-#if _POSIX_TIMEOUTS >= 0
-int
-pthread_mutex_timedlock (pthread_mutex_t *mutex ATTRIBUTE_UNUSED,
-			 const struct timespec *abs_timeout ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-#endif
-#endif /* _POSIX_TIMEOUTS */
-
-int
-pthread_mutex_unlock (pthread_mutex_t *mutex ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_mutexattr_init (pthread_mutexattr_t *attr ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_mutexattr_settype (pthread_mutexattr_t *attr ATTRIBUTE_UNUSED,
-			   int type ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_mutexattr_destroy (pthread_mutexattr_t *attr ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_cond_broadcast (pthread_cond_t *cond ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_cond_destroy (pthread_cond_t *cond ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_cond_init (pthread_cond_t *cond ATTRIBUTE_UNUSED,
-		   const pthread_condattr_t *attr ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_cond_signal (pthread_cond_t *cond ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_cond_wait (pthread_cond_t *cond ATTRIBUTE_UNUSED,
-		   pthread_mutex_t *mutex ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_cond_timedwait (pthread_cond_t *cond ATTRIBUTE_UNUSED,
-			pthread_mutex_t *mutex ATTRIBUTE_UNUSED,
-			const struct timespec *abstime ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_mutex_init (pthread_mutex_t *mutex ATTRIBUTE_UNUSED,
-		    const pthread_mutexattr_t *attr ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_mutex_destroy (pthread_mutex_t *mutex ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-pthread_t
-pthread_self (void)
-{
-  return (pthread_t) 0;
-}
-
-#ifdef _POSIX_PRIORITY_SCHEDULING
-#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
-int
-sched_get_priority_max (int policy ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-sched_get_priority_min (int policy ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
-#endif /* _POSIX_PRIORITY_SCHEDULING */
-
-int
-sched_yield (void)
-{
-  return 0;
-}
-
-int
-pthread_attr_destroy (pthread_attr_t *attr ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_attr_init (pthread_attr_t *attr ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_attr_setdetachstate (pthread_attr_t *attr ATTRIBUTE_UNUSED,
-			     int detachstate ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
-int
-pthread_getschedparam (pthread_t thread ATTRIBUTE_UNUSED,
-		       int *policy ATTRIBUTE_UNUSED,
-		       struct sched_param *param ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-
-int
-pthread_setschedparam (pthread_t thread ATTRIBUTE_UNUSED,
-		       int policy ATTRIBUTE_UNUSED,
-		       const struct sched_param *param ATTRIBUTE_UNUSED)
-{
-  return 0;
-}
-#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
-
diff --git a/libgcc/config/alpha/libgcc-osf5.ver b/libgcc/config/alpha/libgcc-osf5.ver
deleted file mode 100644
index 4266928..0000000
--- a/libgcc/config/alpha/libgcc-osf5.ver
+++ /dev/null
@@ -1,58 +0,0 @@
-# Copyright (C) 2011 Free Software Foundation, Inc.
-#
-# This file is part of GCC.
-#
-# GCC is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GCC 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 General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GCC; see the file COPYING3.  If not see
-# <http://www.gnu.org/licenses/>.
-
-# Tru64 UNIX specific additions to libgcc-std.ver.
-
-GCC_4.7.0 {
-  __udiv_qrnnd
-  # Beware *not* to hide the POSIX threads related symbols provided by
-  # gthr-posix.c, as this would prevent their preemption by real symbols.
-  __pthread_cancel
-  __pthread_cond_broadcast
-  __pthread_cond_destroy
-  __pthread_cond_init
-  __pthread_cond_signal
-  __pthread_cond_timedwait
-  __pthread_cond_wait
-  __pthread_create
-  __pthread_detach
-  __pthread_exit
-  __pthread_getspecific
-  __pthread_join
-  __pthread_mutex_destroy
-  __pthread_mutex_init
-  __pthread_mutex_lock
-  __pthread_mutex_trylock
-  __pthread_mutex_unlock
-  __pthread_once
-  __pthread_self
-  __pthread_setspecific
-  pthread_attr_destroy
-  pthread_attr_init
-  pthread_attr_setdetachstate
-  pthread_getschedparam
-  pthread_key_create
-  pthread_key_delete
-  pthread_mutexattr_destroy
-  pthread_mutexattr_init
-  pthread_mutexattr_settype
-  pthread_setschedparam
-  sched_get_priority_max
-  sched_get_priority_min
-  sched_yield
-}
diff --git a/libgcc/config/alpha/osf5-unwind.h b/libgcc/config/alpha/osf5-unwind.h
deleted file mode 100644
index c649099..0000000
--- a/libgcc/config/alpha/osf5-unwind.h
+++ /dev/null
@@ -1,329 +0,0 @@
-/* DWARF2 EH unwinding support for Alpha Tru64.
-   Copyright (C) 2010 Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 3, or (at your option) any later
-version.
-
-GCC 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 General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING3.  If not see
-<http://www.gnu.org/licenses/>.  */
-
-/* This file implements the MD_FALLBACK_FRAME_STATE_FOR macro, triggered when
-   the GCC table based unwinding process hits a frame for which no unwind info
-   has been registered. This typically occurs when raising an exception from a
-   signal handler, because the handler is actually called from the OS kernel.
-
-   The basic idea is to detect that we are indeed trying to unwind past a
-   signal handler and to fill out the GCC internal unwinding structures for
-   the OS kernel frame as if it had been directly called from the interrupted
-   context.
-
-   This is all assuming that the code to set the handler asked the kernel to
-   pass a pointer to such context information.  */
-
-/* --------------------------------------------------------------------------
-   -- Basic principles of operation:
-   --------------------------------------------------------------------------
-
-   1/ We first need a way to detect if we are trying to unwind past a signal
-      handler.
-
-   The typical method that is used on most platforms is to look at the code
-   around the return address we have and check if it matches the OS code
-   calling a handler.  To determine what this code is expected to be, get a
-   breakpoint into a real signal handler and look at the code around the
-   return address.  Depending on the library versions the pattern of the
-   signal handler is different; this is the reason why we check against more
-   than one pattern.
-
-   On this target, the return address is right after the call and every
-   instruction is 4 bytes long.  For the simple case of a null dereference in
-   a single-threaded app, it went like:
-
-   # Check that we indeed have something we expect: the instruction right
-   # before the return address is within a __sigtramp function and is a call.
-
-   [... run gdb and break at the signal handler entry ...]
-
-   (gdb) x /i $ra-4
-   <__sigtramp+160>: jsr     ra,(a3),0x3ff800d0ed4 <_fpdata+36468>
-
-   # Look at the code around that return address, and eventually observe a
-   # significantly large chunk of *constant* code right before the call:
-
-   (gdb) x /10i  $ra-44
-   <__sigtramp+120>: lda     gp,-27988(gp)
-   <__sigtramp+124>: ldq     at,-18968(gp)
-   <__sigtramp+128>: lda     t0,-1
-   <__sigtramp+132>: stq     t0,0(at)
-   <__sigtramp+136>: ldq     at,-18960(gp)
-   <__sigtramp+140>: ldl     t1,8(at)
-   <__sigtramp+144>: ldq     at,-18960(gp)
-   <__sigtramp+148>: stl     t1,12(at)
-   <__sigtramp+152>: ldq     at,-18960(gp)
-   <__sigtramp+156>: stl     t0,8(at)
-
-   # The hexadecimal equivalent that we will have to match is:
-
-   (gdb) x /10x  $ra-44
-   <__sigtramp+120>: 0x23bd92ac    0xa79db5e8    0x203fffff   0xb43c0000
-   <__sigtramp+136>: 0xa79db5f0    0xa05c0008    0xa79db5f0   0xb05c000c
-   <__sigtramp+152>: 0xa79db5f0    0xb03c0008
-
-   The problem observed on this target with this approach is that although
-   we found a constant set of instruction patterns there were some
-   gp-related offsets that made the machine code to differ from one
-   installation to another.  This problem could have been overcome by masking
-   these offsets, but we found that it would be simpler and more efficient to
-   check whether the return address was part of a signal handler, by comparing
-   it against some expected code offset from __sigtramp.
-
-   # Check that we indeed have something we expect: the instruction
-   # right before the return address is within a __sigtramp
-   # function and is a call. We also need to obtain the offset
-   # between the return address and the start address of __sigtramp.
-
-   [... run gdb and break at the signal handler entry ...]
-
-   (gdb) x /2i $ra-4
-   <__sigtramp+160>: jsr     ra,(a3),0x3ff800d0ed4 <_fpdata+36468>
-   <__sigtramp+164>: ldah    gp,16381(ra)
-
-   (gdb) p (long)$ra - (long)&__sigtramp
-   $2 = 164
-
-   --------------------------------------------------------------------------
-
-   2/ Once we know we are going through a signal handler, we need a way to
-      retrieve information about the interrupted run-time context.
-
-   On this platform, the third handler's argument is a pointer to a structure
-   describing this context (struct sigcontext *). We unfortunately have no
-   direct way to transfer this value here, so a couple of tricks are required
-   to compute it.
-
-   As documented at least in some header files (e.g. sys/machine/context.h),
-   the structure the handler gets a pointer to is located on the stack.  As of
-   today, while writing this macro, we have unfortunately not been able to
-   find a detailed description of the full stack layout at handler entry time,
-   so we'll have to resort to empirism :)
-
-   When unwinding here, we have the handler's CFA at hand, as part of the
-   current unwinding context which is one of our arguments.  We presume that
-   for each call to a signal handler by the same kernel routine, the context's
-   structure location on the stack is always at the same offset from the
-   handler's CFA, and we compute that offset from bare observation:
-
-   For the simple case of a bare null dereference in a single-threaded app,
-   computing the offset was done using GNAT like this:
-
-   # Break on the first handler's instruction, before the prologue to have the
-   # CFA in $sp, and get there:
-
-   (gdb) b *&__gnat_error_handler
-   Breakpoint 1 at 0x120016090: file init.c, line 378.
-
-   (gdb) r
-   Program received signal SIGSEGV, Segmentation fault.
-
-   (gdb) c
-   Breakpoint 1, __gnat_error_handler (sig=..., sip=..., context=...)
-
-   # The displayed argument value are meaningless because we stopped before
-   # their final "homing". We know they are passed through $a0, $a1 and $a2
-   # from the ABI, though, so ...
-
-   # Observe that $sp and the context pointer are in the same (stack) area,
-   # and compute the offset:
-
-   (gdb) p /x $sp
-   $2 = 0x11fffbc80
-
-   (gdb) p /x $a2
-   $3 = 0x11fffbcf8
-
-   (gdb) p /x (long)$a2 - (long)$sp
-   $4 = 0x78
-
-   --------------------------------------------------------------------------
-
-   3/ Once we know we are unwinding through a signal handler and have the
-      address of the structure describing the interrupted context at hand, we
-      have to fill the internal frame-state/unwind-context structures properly
-      to allow the unwinding process to proceed.
-
-   Roughly, we are provided with an *unwinding* CONTEXT, describing the state
-   of some point P in the call chain we are unwinding through.  The macro we
-   implement has to fill a "frame state" structure FS that describe the P's
-   caller state, by way of *rules* to compute its CFA, return address, and
-   **saved** registers *locations*. 
-
-   For the case we are going to deal with, the caller is some kernel code
-   calling a signal handler, and:
-
-   o The saved registers are all in the interrupted run-time context,
-
-   o The CFA is the stack pointer value when the kernel code is entered, that
-     is, the stack pointer value at the interruption point, also part of the
-     interrupted run-time context.
-
-   o We want the return address to appear as the address of the active
-     instruction at the interruption point, so that the unwinder proceeds as
-     if the interruption had been a regular call.  This address is also part
-     of the interrupted run-time context.
-
-   --
-
-   Also, note that there is an important difference between the return address
-   we need to claim for the kernel frame and the value of the return address
-   register at the interruption point.
-
-   The latter might be required to be able to unwind past the interrupted
-   routine, for instance if it is interrupted before saving the incoming
-   register value in its own frame, which may typically happen during stack
-   probes for stack-checking purposes.
-
-   It is then essential that the rules stated to locate the kernel frame
-   return address don't clobber the rules describing where is saved the return
-   address register at the interruption point, so some scratch register state
-   entry should be used for the former. We have DWARF_ALT_FRAME_RETURN_COLUMN
-   at hand exactly for that purpose.
-
-   --------------------------------------------------------------------------
-
-   4/ Depending on the context (single-threaded or multi-threaded app, ...),
-   the code calling the handler and the handler-cfa to interrupted-context
-   offset might change, so we use a simple generic data structure to track
-   the possible variants.  */
-
-/* This is the structure to wrap information about each possible sighandler
-   caller we may have to identify.  */
-
-typedef struct {
-  /* Expected return address when being called from a sighandler.  */
-  void *ra_value;
-
-  /* Offset to get to the sigcontext structure from the handler's CFA
-     when the pattern matches.  */
-  int cfa_to_context_offset;
-
-} sighandler_call_t;
-
-/* Helper macro for MD_FALLBACK_FRAME_STATE_FOR below.
-
-   Look at RA to see if it matches within a sighandler caller.
-   Set SIGCTX to the corresponding sigcontext structure (computed from
-   CFA) if it does, or to 0 otherwise.  */
-
-#define COMPUTE_SIGCONTEXT_FOR(RA,CFA,SIGCTX)				    \
-do {									    \
-  /* Define and register the applicable patterns.  */			    \
-  extern void __sigtramp (void);					    \
-									    \
-  sighandler_call_t sighandler_calls [] = {				    \
-    {__sigtramp + 164, 0x78}						    \
-  };									    \
-									    \
-  int n_patterns_to_match						    \
-    = sizeof (sighandler_calls) / sizeof (sighandler_call_t);		    \
-									    \
-  int pn;  /* pattern number  */					    \
-									    \
-  int match = 0;  /* Did last pattern match ?  */			    \
-									    \
-  /* Try to match each pattern in turn.  */				    \
-  for (pn = 0; !match && pn < n_patterns_to_match; pn ++)		    \
-    match = ((RA) == sighandler_calls[pn].ra_value);			    \
-									    \
-  (SIGCTX) = (struct sigcontext *)					    \
-    (match ? ((CFA) + sighandler_calls[pn - 1].cfa_to_context_offset) : 0); \
-} while (0);
-
-#include <sys/context_t.h>
-
-#define REG_SP  30  /* hard reg for stack pointer */
-#define REG_RA  26  /* hard reg for return address */
-
-#define MD_FALLBACK_FRAME_STATE_FOR alpha_fallback_frame_state
-
-static _Unwind_Reason_Code
-alpha_fallback_frame_state (struct _Unwind_Context *context,
-			    _Unwind_FrameState *fs)
-{
-  /* Return address and CFA of the frame we're attempting to unwind through,
-     possibly a signal handler.  */
-  void *ctx_ra  = (void *)context->ra;
-  void *ctx_cfa = (void *)context->cfa;
-
-  /* CFA of the intermediate abstract kernel frame between the interrupted
-     code and the signal handler, if we're indeed unwinding through a signal
-     handler.  */
-  void *k_cfa;
-
-  /* Pointer to the sigcontext structure pushed by the kernel when we're
-     unwinding through a signal handler.  */
-  struct sigcontext *sigctx;
-  int i;
-
-  COMPUTE_SIGCONTEXT_FOR (ctx_ra, ctx_cfa, sigctx);
-
-  if (sigctx == 0)
-    return _URC_END_OF_STACK;
-
-  /* The kernel frame's CFA is exactly the stack pointer value at the
-     interruption point.  */
-  k_cfa = (void *) sigctx->sc_regs [REG_SP];
-
-  /* State the rules to compute the CFA we have the value of: use the
-     previous CFA and offset by the difference between the two.  See
-     uw_update_context_1 for the supporting details.  */
-  fs->regs.cfa_how = CFA_REG_OFFSET;
-  fs->regs.cfa_reg = __builtin_dwarf_sp_column ();
-  fs->regs.cfa_offset = k_cfa - ctx_cfa;
-
-  /* Fill the internal frame_state structure with information stating
-     where each register of interest in the saved context can be found
-     from the CFA.  */
-
-  /* The general registers are in sigctx->sc_regs.  Leave out r31, which
-     is read-as-zero. It makes no sense restoring it, and we are going to
-     use the state entry for the kernel return address rule below.
-
-     This loop must cover at least all the callee-saved registers, and
-     we just don't bother specializing the set here.  */
-  for (i = 0; i <= 30; i ++)
-    {
-      fs->regs.reg[i].how = REG_SAVED_OFFSET;
-      fs->regs.reg[i].loc.offset
-	= (void *) &sigctx->sc_regs[i] - (void *) k_cfa;
-    }
-
-  /* Ditto for the floating point registers in sigctx->sc_fpregs.  */
-  for (i = 0; i <= 31; i ++)
-    {
-      fs->regs.reg[32+i].how = REG_SAVED_OFFSET;
-      fs->regs.reg[32+i].loc.offset
-	= (void *) &sigctx->sc_fpregs[i] - (void *) k_cfa;
-    }
-
-  /* State the rules to find the kernel's code "return address", which
-     is the address of the active instruction when the signal was caught,
-     in sigctx->sc_pc. Use DWARF_ALT_FRAME_RETURN_COLUMN since the return
-     address register is a general register and should be left alone.  */
-  fs->retaddr_column = DWARF_ALT_FRAME_RETURN_COLUMN;
-  fs->regs.reg[DWARF_ALT_FRAME_RETURN_COLUMN].how = REG_SAVED_OFFSET;
-  fs->regs.reg[DWARF_ALT_FRAME_RETURN_COLUMN].loc.offset
-    = (void *) &sigctx->sc_pc - (void *) k_cfa;
-  fs->signal_frame = 1;
-
-  return _URC_NO_REASON;
-}
diff --git a/libgcc/config/alpha/t-osf-pthread b/libgcc/config/alpha/t-osf-pthread
deleted file mode 100644
index 9a175db..0000000
--- a/libgcc/config/alpha/t-osf-pthread
+++ /dev/null
@@ -1,5 +0,0 @@
-# Compile libgcc2 with POSIX threads supports
-HOST_LIBGCC2_CFLAGS += -pthread
-
-# Provide dummy POSIX threads functions
-LIB2ADD += $(srcdir)/config/alpha/gthr-posix.c
diff --git a/libgcc/config/alpha/t-slibgcc-osf b/libgcc/config/alpha/t-slibgcc-osf
deleted file mode 100644
index 66e5cf1..0000000
--- a/libgcc/config/alpha/t-slibgcc-osf
+++ /dev/null
@@ -1,29 +0,0 @@
-# Copyright (C) 2000, 2001, 2003, 2004, 2005, 2011
-# Free Software Foundation, Inc.
-#
-# This file is part of GCC.
-#
-# GCC is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GCC is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GCC; see the file COPYING3.  If not see
-# <http://www.gnu.org/licenses/>.
-
-# Build a shared libgcc library with the Tru64 UNIX linker.
-
-SHLIB_LDFLAGS = -Wl,-msym -Wl,-set_version,gcc.1 -Wl,-soname,$(SHLIB_SONAME) \
-	-Wl,-hidden -Wl,-input,$(SHLIB_MAP)
-
-SHLIB_MKMAP = $(srcdir)/mkmap-flat.awk
-SHLIB_MKMAP_OPTS = -v osf_export=1
-# Needed so mkmap-flat.awk can parse the nm output.
-SHLIB_NM_FLAGS = -Bg
-SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/alpha/libgcc-osf5.ver
diff --git a/libgcc/config/t-crtfm b/libgcc/config/t-crtfm
index 1d3b8ec..61e6269 100644
--- a/libgcc/config/t-crtfm
+++ b/libgcc/config/t-crtfm
@@ -1,5 +1,2 @@
-# -frandom-seed is necessary to avoid bootstrap comparison failures due to
-# changing mangled names of the constructor on Tru64 Unix, but harmless
-# otherwise.
 crtfastmath.o: $(srcdir)/config/$(cpu_type)/crtfastmath.c
-	$(gcc_compile) -frandom-seed=gcc-crtfastmath -c $<
+	$(gcc_compile) -c $<
diff --git a/libgcc/gthr-posix.h b/libgcc/gthr-posix.h
index 6c9af1a..67d79ff 100644
--- a/libgcc/gthr-posix.h
+++ b/libgcc/gthr-posix.h
@@ -1,7 +1,7 @@
 /* Threads compatibility routines for libgcc2 and libobjc.  */
 /* Compile this one with gcc.  */
 /* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
-   2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+   2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -33,11 +33,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define __GTHREADS 1
 #define __GTHREADS_CXX0X 1
 
-/* Some implementations of <pthread.h> require this to be defined.  */
-#if !defined(_REENTRANT) && defined(__osf__)
-#define _REENTRANT 1
-#endif
-
 #include <pthread.h>
 
 #if ((defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)) \
@@ -105,39 +100,6 @@ typedef struct timespec __gthread_time_t;
 /* Typically, __gthrw_foo is a weak reference to symbol foo.  */
 #define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name)
 
-/* On Tru64, /usr/include/pthread.h uses #pragma extern_prefix "__" to
-   map a subset of the POSIX pthread API to mangled versions of their
-   names.  */
-#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_)
-#define __gthrw3(name) __gthrw2(__gthrw_ ## name, __ ## name, name)
-__gthrw3(pthread_once)
-__gthrw3(pthread_getspecific)
-__gthrw3(pthread_setspecific)
-
-__gthrw3(pthread_create)
-__gthrw3(pthread_join)
-__gthrw3(pthread_detach)
-__gthrw3(pthread_equal)
-__gthrw3(pthread_self)
-__gthrw3(pthread_cancel)
-__gthrw3(sched_yield)
-
-__gthrw3(pthread_mutex_lock)
-__gthrw3(pthread_mutex_trylock)
-#if _GTHREAD_USE_MUTEX_TIMEDLOCK
-__gthrw3(pthread_mutex_timedlock)
-#endif
-__gthrw3(pthread_mutex_unlock)
-__gthrw3(pthread_mutex_init)
-__gthrw3(pthread_mutex_destroy)
-
-__gthrw3(pthread_cond_init)
-__gthrw3(pthread_cond_broadcast)
-__gthrw3(pthread_cond_signal)
-__gthrw3(pthread_cond_wait)
-__gthrw3(pthread_cond_timedwait)
-__gthrw3(pthread_cond_destroy)
-#else
 __gthrw(pthread_once)
 __gthrw(pthread_getspecific)
 __gthrw(pthread_setspecific)
@@ -167,7 +129,6 @@ __gthrw(pthread_cond_signal)
 __gthrw(pthread_cond_wait)
 __gthrw(pthread_cond_timedwait)
 __gthrw(pthread_cond_destroy)
-#endif
 
 __gthrw(pthread_key_create)
 __gthrw(pthread_key_delete)
@@ -178,11 +139,7 @@ __gthrw(pthread_mutexattr_destroy)
 
 #if defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)
 /* Objective-C.  */
-#if defined(__osf__) && defined(_PTHREAD_USE_MANGLED_NAMES_)
-__gthrw3(pthread_exit)
-#else
 __gthrw(pthread_exit)
-#endif /* __osf__ && _PTHREAD_USE_MANGLED_NAMES_ */
 #ifdef _POSIX_PRIORITY_SCHEDULING
 #ifdef _POSIX_THREAD_PRIORITY_SCHEDULING
 __gthrw(sched_get_priority_max)
diff --git a/libgcc/mkmap-flat.awk b/libgcc/mkmap-flat.awk
index ec5e1fd..234de22 100644
--- a/libgcc/mkmap-flat.awk
+++ b/libgcc/mkmap-flat.awk
@@ -1,5 +1,6 @@
 # Generate a flat list of symbols to export.
-#	Copyright (C) 2007, 2008, 2009, 2011  Free Software Foundation, Inc.
+#	Copyright (C) 2007, 2008, 2009, 2011, 2012
+#	Free Software Foundation, Inc.
 #	Contributed by Richard Henderson <rth@cygnus.com>
 #
 # This file is part of GCC.
@@ -20,8 +21,6 @@
 
 # Options:
 #   "-v leading_underscore=1" : Symbols in map need leading underscore.
-#   "-v osf_export=1"	      : Create -input file for Tru64 UNIX linker
-#				instead of map file.
 #   "-v pe_dll=1"             : Create .DEF file for Windows PECOFF
 #                               DLL link instead of map file.
 
@@ -100,10 +99,6 @@ END {
   }
 
   for (sym in export)
-    if (def[sym] || (pe_dll && def["_" sym])) {
-      if (!osf_export)
-	print sym;
-      else
-	print "-exported_symbol " sym;
-    }
+    if (def[sym] || (pe_dll && def["_" sym]))
+      print sym;
 }