Remove obsolete IRIX 6.5 support

	libstdc++-v3:
	* configure.host (irix6.5*): Remove.
	* config/os/irix: Remove.
	* config/io/basic_file_stdio.cc (__basic_file<char>::showmanyc())
	[_GLIBCXX_FIONREAD_TAKES_OFF_T]: Remove.

	* doc/xml/faq.xml: Remove IRIX reference.
	* doc/xml/manual/using.xml (Finding Dynamic or Shared Libraries):
	Remove IRIX example.

	* testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
	Remove mips-sgi-irix6* handling.
	* 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.
	* testsuite/30_threads/async/49668.cc: Likewise.
	* testsuite/30_threads/async/any.cc: Likewise.
	* testsuite/30_threads/async/async.cc: Likewise.
	* testsuite/30_threads/async/launch.cc: Likewise.
	* testsuite/30_threads/async/sync.cc: Likewise.
	* testsuite/30_threads/call_once/39909.cc: Likewise.
	* testsuite/30_threads/call_once/49668.cc: Likewise.
	* testsuite/30_threads/call_once/call_once1.cc: Likewise.
	* testsuite/30_threads/condition_variable/cons/1.cc: Likewise.
	* testsuite/30_threads/condition_variable/members/1.cc: Likewise.
	* testsuite/30_threads/condition_variable/members/2.cc: Likewise.
	* testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
	Likewise.
	* testsuite/30_threads/condition_variable_any/50862.cc: Likewise.
	* testsuite/30_threads/condition_variable_any/cons/1.cc: Likewise.
	* testsuite/30_threads/condition_variable_any/members/1.cc: Likewise.
	* testsuite/30_threads/condition_variable_any/members/2.cc: Likewise.
	* testsuite/30_threads/future/cons/move.cc: Likewise.
	* testsuite/30_threads/future/members/45133.cc: Likewise.
	* testsuite/30_threads/future/members/get.cc: Likewise.
	* testsuite/30_threads/future/members/get2.cc: Likewise.
	* testsuite/30_threads/future/members/share.cc: Likewise.
	* testsuite/30_threads/future/members/valid.cc: Likewise.
	* testsuite/30_threads/future/members/wait.cc: Likewise.
	* testsuite/30_threads/future/members/wait_for.cc: Likewise.
	* testsuite/30_threads/future/members/wait_until.cc: Likewise.
	* testsuite/30_threads/lock/1.cc: Likewise.
	* testsuite/30_threads/lock/2.cc: Likewise.
	* testsuite/30_threads/lock/3.cc: Likewise.
	* testsuite/30_threads/lock/4.cc: Likewise.
	* testsuite/30_threads/lock_guard/cons/1.cc: Likewise.
	* testsuite/30_threads/mutex/cons/1.cc: Likewise.
	* testsuite/30_threads/mutex/dest/destructor_locked.cc: Likewise.
	* testsuite/30_threads/mutex/lock/1.cc: Likewise.
	* testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
	* testsuite/30_threads/mutex/native_handle/typesizes.cc: Likewise.
	* testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
	* testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
	* testsuite/30_threads/mutex/unlock/1.cc: Likewise.
	* testsuite/30_threads/packaged_task/49668.cc: Likewise.
	* testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
	* testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
	* testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
	* testsuite/30_threads/packaged_task/cons/alloc.cc: Likewise.
	* testsuite/30_threads/packaged_task/cons/move.cc: Likewise.
	* testsuite/30_threads/packaged_task/cons/move_assign.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/get_future.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/get_future2.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/invoke.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/invoke2.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/invoke3.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/invoke4.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/invoke5.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/reset.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/reset2.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/swap.cc: Likewise.
	* testsuite/30_threads/packaged_task/members/valid.cc: Likewise.
	* testsuite/30_threads/promise/cons/1.cc: Likewise.
	* testsuite/30_threads/promise/cons/alloc.cc: Likewise.
	* testsuite/30_threads/promise/cons/move.cc: Likewise.
	* testsuite/30_threads/promise/cons/move_assign.cc: Likewise.
	* testsuite/30_threads/promise/members/get_future.cc: Likewise.
	* testsuite/30_threads/promise/members/get_future2.cc: Likewise.
	* testsuite/30_threads/promise/members/set_exception.cc: Likewise.
	* testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
	* testsuite/30_threads/promise/members/set_value.cc: Likewise.
	* testsuite/30_threads/promise/members/set_value2.cc: Likewise.
	* testsuite/30_threads/promise/members/set_value3.cc: Likewise.
	* testsuite/30_threads/promise/members/swap.cc: Likewise.
	* testsuite/30_threads/recursive_mutex/cons/1.cc: Likewise.
	* testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
	Likewise.
	* testsuite/30_threads/recursive_mutex/lock/1.cc: Likewise.
	* testsuite/30_threads/recursive_mutex/native_handle/1.cc: Likewise.
	* testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
	Likewise.
	* testsuite/30_threads/recursive_mutex/try_lock/1.cc: Likewise.
	* testsuite/30_threads/recursive_mutex/try_lock/2.cc: Likewise.
	* testsuite/30_threads/recursive_mutex/unlock/1.cc: Likewise.
	* testsuite/30_threads/recursive_timed_mutex/cons/1.cc: Likewise.
	* testsuite/30_threads/recursive_timed_mutex/dest/destructor_locked.cc:
	Likewise.
	* testsuite/30_threads/recursive_timed_mutex/lock/1.cc: Likewise.
	* testsuite/30_threads/recursive_timed_mutex/lock/2.cc: Likewise.
	* testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
	Likewise.
	* testsuite/30_threads/recursive_timed_mutex/native_handle/typesizes.cc:
	Likewise.
	* testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc: Likewise.
	* testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc: Likewise.
	* testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
	Likewise.
	* testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
	Likewise.
	* testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
	Likewise.
	* testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
	Likewise.
	* testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
	Likewise.
	* testsuite/30_threads/recursive_timed_mutex/unlock/1.cc: Likewise.
	* testsuite/30_threads/shared_future/cons/move.cc: Likewise.
	* testsuite/30_threads/shared_future/members/45133.cc: Likewise.
	* testsuite/30_threads/shared_future/members/get.cc: Likewise.
	* testsuite/30_threads/shared_future/members/get2.cc: Likewise.
	* testsuite/30_threads/shared_future/members/valid.cc: Likewise.
	* testsuite/30_threads/shared_future/members/wait.cc: Likewise.
	* testsuite/30_threads/shared_future/members/wait_for.cc: Likewise.
	* testsuite/30_threads/shared_future/members/wait_until.cc: Likewise.
	* testsuite/30_threads/this_thread/1.cc: Likewise.
	* testsuite/30_threads/this_thread/2.cc: Likewise.
	* testsuite/30_threads/this_thread/3.cc: Likewise.
	* testsuite/30_threads/this_thread/4.cc: Likewise.
	* testsuite/30_threads/thread/cons/1.cc: Likewise.
	* testsuite/30_threads/thread/cons/2.cc: Likewise.
	* testsuite/30_threads/thread/cons/3.cc: Likewise.
	* testsuite/30_threads/thread/cons/4.cc: Likewise.
	* testsuite/30_threads/thread/cons/49668.cc: Likewise.
	* testsuite/30_threads/thread/cons/5.cc: Likewise.
	* testsuite/30_threads/thread/cons/6.cc: Likewise.
	* testsuite/30_threads/thread/cons/7.cc: Likewise.
	* testsuite/30_threads/thread/cons/8.cc: Likewise.
	* testsuite/30_threads/thread/cons/9.cc: Likewise.
	* testsuite/30_threads/thread/cons/moveable.cc: Likewise.
	* testsuite/30_threads/thread/members/1.cc: Likewise.
	* testsuite/30_threads/thread/members/2.cc: Likewise.
	* testsuite/30_threads/thread/members/3.cc: Likewise.
	* testsuite/30_threads/thread/members/4.cc: Likewise.
	* testsuite/30_threads/thread/members/5.cc: Likewise.
	* testsuite/30_threads/thread/members/hardware_concurrency.cc: Likewise.
	* testsuite/30_threads/thread/native_handle/typesizes.cc: Likewise.
	* testsuite/30_threads/thread/swap/1.cc: Likewise.
	* testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
	* testsuite/30_threads/timed_mutex/dest/destructor_locked.cc: Likewise.
	* testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
	* testsuite/30_threads/timed_mutex/native_handle/1.cc: Likewise.
	* testsuite/30_threads/timed_mutex/native_handle/typesizes.cc: Likewise.
	* testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
	* testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
	* testsuite/30_threads/timed_mutex/try_lock_for/1.cc: Likewise.
	* testsuite/30_threads/timed_mutex/try_lock_for/2.cc: Likewise.
	* testsuite/30_threads/timed_mutex/try_lock_for/3.cc: Likewise.
	* testsuite/30_threads/timed_mutex/try_lock_until/1.cc: Likewise.
	* testsuite/30_threads/timed_mutex/try_lock_until/2.cc: Likewise.
	* testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
	* testsuite/30_threads/try_lock/1.cc: Likewise.
	* testsuite/30_threads/try_lock/2.cc: Likewise.
	* testsuite/30_threads/try_lock/3.cc: Likewise.
	* testsuite/30_threads/try_lock/4.cc: Likewise.
	* testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
	* testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
	* testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
	* testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
	* testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
	* testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
	* testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
	* testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
	* testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
	* testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
	* testsuite/30_threads/unique_lock/modifiers/1.cc: Likewise.
	* testsuite/30_threads/unique_lock/modifiers/2.cc: Likewise.
	* testsuite/ext/rope/pthread7-rope.cc: Likewise.
	* testsuite/tr1/2_general_utilities/shared_ptr/thread/default_weaktoshared.cc:
	Likewise.
	* testsuite/tr1/2_general_utilities/shared_ptr/thread/mutex_weaktoshared.cc:
	Likewise.

	* testsuite/23_containers/vector/capacity/resize/1.cc: Remove
	dg-options for mips*-*-irix6*.

	* testsuite/27_io/ios_base/storage/1.cc: Likewise.
	* testsuite/27_io/ios_base/storage/2.cc: Likewise.
	* testsuite/27_io/ios_base/storage/3.cc: Likewise.

	* testsuite/lib/libstdc++.exp (v3-build_support): Remove IRIX 6
	workaround.

	libjava:
	* configure.ac (libgcj_cv_exidx): Remove IRIX 6 ld workaround.
	(mips-sgi-irix6*): Remove.
	(mips-sgi-irix*): Remove.
	(AC_CHECK_HEADERS): Remove bstring.h.
	* configure: Regenerate.
	* include/config.h.in: Regenerate.
	* configure.host (mips-sgi-irix6*): Remove.

	* include/posix-signal.h [__sgi__]: Remove.

	* gnu/java/net/natPlainDatagramSocketImplPosix.cc
	[HAVE_BSTRING_H]: Remove.
	* gnu/java/net/natPlainDatagramSocketImplWin32.cc: Likewise.
	* gnu/java/net/natPlainSocketImplPosix.cc: Likewise.

	libitm:
	* configure.tgt (*-*-irix6*): Remove.

	libgomp:
	* configure.tgt (mips-sgi-irix6*): Remove.

	libgfortran:
	* intrinsics/c99_functions.c [__sgi__ && !HAVE_COMPLEX_H]: Remove.

	libgcc:
	* config.host (mips-sgi-irix6.5*): Remove.
	* config/mips/irix-crti.S: Remove.
	* config/mips/irix-crtn.S: Remove.
	* config/mips/irix6-unwind.h: Remove.
	* config/mips/t-irix6: Remove.
	* config/mips/t-slibgcc-irix: Remove.

	gnattools:
	* configure.ac (mips-sgi-irix*): Remove.
	* configure: Regenerate.

	gcc/testsuite:
	* g++.dg/other/anon5.C: Don't skip on mips-sgi-irix*.
	* g++.dg/tree-prof/partition1.C: Likewise.
	* g++.dg/tree-prof/partition2.C: Likewise.
	* g++.old-deja/g++.other/init19.C: Remove mips-sgi-irix*
	handling.
	* gcc.c-torture/compile/labels-3.c: Remove dg-options.
	* gcc.c-torture/execute/20010724-1.c: Remove.
	* gcc.c-torture/execute/20010724-1.x: Remove.
	* gcc.c-torture/execute/20040208-2.c: Remove.
	* gcc.c-torture/execute/20040208-2.x: Remove.
	* gcc.c-torture/execute/ieee/20000320-1.c [__mips__ && __sgi__]:
	Remove.
	(main) [__mips__ && __sgi__]: Remove.
	* gcc.c-torture/execute/ieee/copysign1.c: Remove IRIX reference.
	* gcc.c-torture/execute/ieee/copysign2.c: Likewise.
	* gcc.c-torture/execute/ieee/mul-subnormal-single-1.x: Remove
	mips-sgi-irix6* handling.
	* gcc.dg/cpp/assert4.c [__mips__]: Remove __sgi__, sgi.
	* gcc.dg/torture/20090618-1.c: Don't skip on mips-sgi-irix*.
	* gcc.dg/torture/builtin-frexp-1.c: Remove mips*-*-irix6*
	handling.
	* gcc.dg/torture/builtin-logb-1.c: Likewise.
	* gcc.dg/torture/pr47917.c: Remove mips-sgi-irix6.5 handling.
	* gcc.dg/tree-ssa/ssa-store-ccp-3.c: Don't skip on mips*-*-irix*.
	* gcc.misc-tests/linkage.exp: Remove mips-sgi-irix6* handling.
	* gcc.target/mips/args-1.c [!__sgi__]: Remove.
	* gcc.target/mips/interrupt_handler-2.c: Don't skip on
	mips-sgi-irix6*.
	* gcc.target/mips/interrupt_handler-3.c: Likewise.
	* gcc.target/mips/save-restore-1.c: Don't skip on mips-sgi-irix6*.
	* gcc.target/mips/save-restore-3.c: Likewise.
	* gcc.target/mips/save-restore-4.c: Likewise.
	* gcc.target/mips/save-restore-5.c: Likewise.
	* gfortran.dg/g77/cabs.f: Don't xfail on mips-sgi-irix6*.
	* lib/prune.exp (prune_gcc_output): Remove pruning of IRIX 6 ld
	messages.
	* lib/target-libpath.exp (set_ld_library_path_env_vars): Remove
	IRIX 6 handling.
	(restore_ld_library_path_env_vars): Likewise.
	* lib/target-supports.exp (check_profiling_available): Remove
	mips*-*-irix* handling.
	(check_ascii_locale_available): Remove mips-sgi-irix* handling.
	(add_options_for_c99_runtime): Remove mips-sgi-irix6.5* handling.
	* objc.dg/stabs-1.m: Don't xfail on mips-sgi-irix6.5.

	gcc/ada:
	* gcc-interface/Makefile.in (mips-sgi-irix6*): Remove.

	* a-intnam-irix.ads, mlib-tgt-specific-irix.adb,
	s-intman-irix.adb, s-mastop-irix.adb, s-osinte-irix.adb,
	s-osinte-irix.ads, s-proinf-irix-athread.adb,
	s-proinf-irix-athread.ads, s-taprop-irix.adb, s-tasinf-irix.ads,
	system-irix-n32.ads, system-irix-n64.ads, system-irix-o32.ads:
	Remove.

	* adaint.c [__mips && __sgi]: Remove.
	(__gnat_number_of_cpus) [__mips && __sgi]: Remove.
	[IS_CROSS && !(__mips && __sgi)]: Remove.
	* adaint.h [sgi && _LFAPI]: Remove.
	* cstreams.c (__gnat_full_name) [sgi]: Remove.
	* env.c (__gnat_unsetenv) [__mips && __sgi]: Remove.
	(__gnat_clearenv) [__mips && __sgi]: Remove.
	* errno.c (_SGI_MP_SOURCE): Remove.
	* gsocket.h [sgi]: Remove.
	* init.c: Remove IRIX reference.
	[sgi]: Remove.
	* link.c [sgi]: Remove.
	* s-oscons-tmplt.c [__mips && __sgi] (IOV_MAX): Don't define.
	(main) [__mips && __sgi] (MAX_tv_sec): Don't define.
	(CLOCK_SGI_FAST, CLOCK_SGI_CYCLE): Remove.
	* sysdep.c [sgi]: Remove.
	(getc_immediate_common) [sgi]: Remove.
	(__gnat_localtime_tzoff) [sgi]: Remove.
	* terminals.c [__mips && __sgi] (IRIX): Don't define.
	[IRIX] (USE_GETPTY): Don't define.
	(allocate_pty_desc) [USE_GETPTY]: Remove.

	* g-traceb.ads: Remove IRIX reference.
	* g-trasym.ads: Likewise.
	* memtrack.adb: Likewise.
	* s-interr-sigaction.adb: Likewise.

	* gnat_rm.texi (Implementation Advice): Remove SGI info.
	(Implementation Defined Characteristics): Likewise.
	* gnat_ugn.texi (Summary of Run-Time Configurations, mips-irix):
	Remove.
	(Irix-Specific Considerations): Remove.

	gcc/cp:
	* Make-lang.in (doc/g++.1): Remove IRIX 6.5 reference.

	gcc:
	* config.gcc (enable_obsolete): Remove mips-sgi-irix6.5.
	(mips-sgi-irix6.5*): Remove.
	* config.host (mips-sgi-irix*): Remove.
	* configure.ac (enable_fixed_point): Remove mips*-sgi-irix*.
	(set_have_as_tls): Remove *-*-irix6*.
	(gcc_cv_ld_static_dynamic): Remove mips-sgi-irix6*.
	* configure: Regenerate.

	* config/mips/iris6.h: Remove.
	* config/mips/iris6.opt: Remove.
	* config/mips/t-irix6: Remove.

	* config/mips/mips.h (TARGET_GPWORD): Remove IRIX 6 N64 handling.
	(TARGET_IRIX6): Remove.
	(TARGET_CPU_CPP_BUILTINS): Remove IRIX 6 handling.
	Don't define LANGUAGE_C, _LANGUAGE_C for Objective-C.
	* config/mips/mips.c (mips_build_builtin_va_list): Remove IRIX 6
	handling.
	(mips_file_start): Likewise.
	* config/mips/mips-protos.h (irix_asm_output_align): Remove.

	* config/mips/driver-native.c [__sgi__]: Remove.
	(host_detect_local_cpu) [__sgi__]: Remove.

	* config/mips/gnu-user.h: Remove iris5.h reference.

	* config/mips/mips-modes.def: Remove IRIX 6 reference.
	* config/mips/gnu-user64.h (MIPS_TFMODE_FORMAT): Remove.
	* config/mips/mips.c (mips_option_override) [MIPS_TFMODE_FORMAT]:
	Remove.

	* gcc.c (main): Move asm_debug initialization ...
	(asm_debug): ... here.

	* ginclude/stddef.h (__STDDEF_H__): Don't define.

	* defaults.h (LINK_ELIMINATE_DUPLICATE_LDIRECTORIES): Remove.
	* system.h (LINK_ELIMINATE_DUPLICATE_LDIRECTORIES): Poison.
	* collect2.c [LINK_ELIMINATE_DUPLICATE_LDIRECTORIES]: Remove.
	(main) [LINK_ELIMINATE_DUPLICATE_LDIRECTORIES]: Remove.
	[LINK_ELIMINATE_DUPLICATE_LDIRECTORIES] (is_in_args): Remove.
	* doc/tm.texi.in (Driver, LINK_ELIMINATE_DUPLICATE_LDIRECTORIES):
	Remove.
	* doc/tm.texi: Regenerate.

	* doc/invoke.texi (Debugging Options, -gdwarf-<version>): Remove
	IRIX 6 reference.
	(MIPS Options, -march): Remove IRIX reference.
	* doc/install.texi (Binaries, SGI IRIX): Remove.
	(Specific, mips-sgi-irix6): Document IRIX 6.5 removal, remove rest
	of section.
	* doc/trouble.texi (Interoperation): Remove -lgl_s handling.

	fixincludes:
	* inclhack.def (broken_cabs): Remove IRIX and SunOS 4 support.
	(irix___restrict): Remove.
	(irix___generic1): Remove.
	(irix___generic2): Remove.
	(irix_asm_apostrophe): Remove.
	(irix_complex): Remove.
	(irix_pthread_init): Remove.
	(irix_socklen_t): Remove.
	(irix_stdint_c99_mode): Remove.
	(irix_stdint_c99_types): Remove.
	(irix_stdint_c99_macros): Remove.
	(irix_stdio_va_list): Remove IRIX 6.5 support.
	(irix_wcsftime): Remove.
	(stdio_va_list): Remove IRIX 6.5 support.
	(svr4_profil): Remove IRIX bypass.
	* fixincl.x: Regenerate.

	* tests/base/complex.h [IRIX_COMPLEX_CHECK]: Remove.
	* tests/base/internal/math_core.h: Remove.
	* tests/base/internal/sgimacros.h: Remove.
	* tests/base/internal/wchar_core.h: Remove.
	* tests/base/math.h [BROKEN_CABS_CHECK]: Remove IRIX and SunOS 4
	support.
	* tests/base/pthread.h [IRIX_PTHREAD_INIT_CHECK]: Remove.
	* tests/base/stdint-irix65.h: Remove.
	* tests/base/stdint.h [IRIX_STDINT_C99_MODE_CHECK]: Remove.
	* tests/base/sys/asm.h: Remove.
	* tests/base/sys/socket.h [IRIX_SOCKLEN_T_CHECK]: Remove.

	contrib:
	* config-list.mk (LIST): Remove mips-sgi-irix6.5.

	toplevel:
	* MAINTAINERS (OS Port Maintainers): Remove irix.
	* configure.ac (enable_libgomp): Remove *-*-irix6*.
	(unsupported_languages): Remove mips-sgi-irix6.*.
	(noconfigdirs): Don't add ${libgcj} for mips*-*-irix6*.
	(with_stabs): Remove.
	* configure: Regenerate.

From-SVN: r185390

1 files changed, 2 insertions, 169 deletions

diff --git a/gcc/ada/init.c b/gcc/ada/init.c
index 87124b6..4db5789 100644
--- a/gcc/ada/init.c
+++ b/gcc/ada/init.c
@@ -70,7 +70,8 @@ extern "C" {
 extern void __gnat_raise_program_error (const char *, int);
 
 /* Addresses of exception data blocks for predefined exceptions.  Tasking_Error
-   is not used in this unit, and the abort signal is only used on IRIX.  */
+   is not used in this unit, and the abort signal is only used on IRIX.
+   ??? Revisit this part since IRIX is no longer supported.  */
 extern struct Exception_Data constraint_error;
 extern struct Exception_Data numeric_error;
 extern struct Exception_Data program_error;
@@ -603,174 +604,6 @@ __gnat_install_handler (void)
   __gnat_handler_installed = 1;
 }
 
-/****************/
-/* IRIX Section */
-/****************/
-
-#elif defined (sgi)
-
-#include <signal.h>
-#include <siginfo.h>
-
-#ifndef NULL
-#define NULL 0
-#endif
-
-#define SIGADAABORT 48
-#define SIGNAL_STACK_SIZE 4096
-#define SIGNAL_STACK_ALIGNMENT 64
-
-#define Check_Abort_Status     \
-                      system__soft_links__check_abort_status
-extern int (*Check_Abort_Status) (void);
-
-extern struct Exception_Data _abort_signal;
-
-/* We are not setting the SA_SIGINFO bit in the sigaction flags when
-   connecting that handler, with the effects described in the sigaction
-   man page:
-
-          SA_SIGINFO   If set and the signal is caught, sig is passed as the
-                       first argument to the signal-catching function.  If the
-                       second argument is not equal to NULL, it points to a
-                       siginfo_t structure containing the reason why the
-                       signal was generated [see siginfo(5)]; the third
-                       argument points to a ucontext_t structure containing
-                       the receiving process's context when the signal was
-                       delivered [see ucontext(5)].  If cleared and the signal
-                       is caught, the first argument is also the signal number
-                       but the second argument is the signal code identifying
-                       the cause of the signal. The third argument points to a
-                       sigcontext_t structure containing the receiving
-                       process's context when the signal was delivered. This
-                       is the default behavior (see signal(5) for more
-                       details).  Additionally, when SA_SIGINFO is set for a
-                       signal, multiple occurrences of that signal will be
-                       queued for delivery in FIFO order (see sigqueue(3) for
-                       a more detailed explanation of this concept), if those
-                       occurrences of that signal were generated using
-                       sigqueue(3).  */
-
-static void
-__gnat_error_handler (int sig, siginfo_t *reason, void *uc ATTRIBUTE_UNUSED)
-{
-  /* This handler is installed with SA_SIGINFO cleared, but there's no
-     prototype for the resulting alternative three-argument form, so we
-     have to hack around this by casting reason to the int actually
-     passed.  */
-  int code = (int) reason;
-  struct Exception_Data *exception;
-  const char *msg;
-
-  switch (sig)
-    {
-    case SIGSEGV:
-      if (code == EFAULT)
-	{
-	  exception = &program_error;
-	  msg = "SIGSEGV: (Invalid virtual address)";
-	}
-      else if (code == ENXIO)
-	{
-	  exception = &program_error;
-	  msg = "SIGSEGV: (Read beyond mapped object)";
-	}
-      else if (code == ENOSPC)
-	{
-	  exception = &program_error; /* ??? storage_error ??? */
-	  msg = "SIGSEGV: (Autogrow for file failed)";
-	}
-      else if (code == EACCES || code == EEXIST)
-	{
-	  /* ??? We handle stack overflows here, some of which do trigger
-	         SIGSEGV + EEXIST on Irix 6.5 although EEXIST is not part of
-	         the documented valid codes for SEGV in the signal(5) man
-	         page.  */
-
-	  /* ??? Re-add smarts to further verify that we launched
-		 the stack into a guard page, not an attempt to
-		 write to .text or something.  */
-	  exception = &storage_error;
-	  msg = "SIGSEGV: stack overflow or erroneous memory access";
-	}
-      else
-	{
-	  /* Just in case the OS guys did it to us again.  Sometimes
-	     they fail to document all of the valid codes that are
-	     passed to signal handlers, just in case someone depends
-	     on knowing all the codes.  */
-	  exception = &program_error;
-	  msg = "SIGSEGV: (Undocumented reason)";
-	}
-      break;
-
-    case SIGBUS:
-      /* Map all bus errors to Program_Error.  */
-      exception = &program_error;
-      msg = "SIGBUS";
-      break;
-
-    case SIGFPE:
-      /* Map all fpe errors to Constraint_Error.  */
-      exception = &constraint_error;
-      msg = "SIGFPE";
-      break;
-
-    case SIGADAABORT:
-      if ((*Check_Abort_Status) ())
-	{
-	  exception = &_abort_signal;
-	  msg = "";
-	}
-      else
-	return;
-
-      break;
-
-    default:
-      /* Everything else is a Program_Error.  */
-      exception = &program_error;
-      msg = "unhandled signal";
-    }
-
-  Raise_From_Signal_Handler (exception, msg);
-}
-
-void
-__gnat_install_handler (void)
-{
-  struct sigaction act;
-
-  /* Setup signal handler to map synchronous signals to appropriate
-     exceptions.  Make sure that the handler isn't interrupted by another
-     signal that might cause a scheduling event!
-
-     The handler is installed with SA_SIGINFO cleared, but there's no
-     C++ prototype for the three-argument form, so fake it by using
-     sa_sigaction and casting the arguments instead.  */
-
-  act.sa_sigaction = __gnat_error_handler;
-  act.sa_flags = SA_NODEFER + SA_RESTART;
-  sigfillset (&act.sa_mask);
-  sigemptyset (&act.sa_mask);
-
-  /* Do not install handlers if interrupt state is "System".  */
-  if (__gnat_get_interrupt_state (SIGABRT) != 's')
-    sigaction (SIGABRT, &act, NULL);
-  if (__gnat_get_interrupt_state (SIGFPE) != 's')
-    sigaction (SIGFPE,  &act, NULL);
-  if (__gnat_get_interrupt_state (SIGILL) != 's')
-    sigaction (SIGILL,  &act, NULL);
-  if (__gnat_get_interrupt_state (SIGSEGV) != 's')
-    sigaction (SIGSEGV, &act, NULL);
-  if (__gnat_get_interrupt_state (SIGBUS) != 's')
-    sigaction (SIGBUS,  &act, NULL);
-  if (__gnat_get_interrupt_state (SIGADAABORT) != 's')
-    sigaction (SIGADAABORT,  &act, NULL);
-
-  __gnat_handler_installed = 1;
-}
-
 /*******************/
 /* LynxOS Section */
 /*******************/