Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 417 insertions, 0 deletions

diff --git a/gcc-4.9/libjava/configure.host b/gcc-4.9/libjava/configure.host
new file mode 100644
index 000000000..f2d1bb5ed
--- /dev/null
+++ b/gcc-4.9/libjava/configure.host
@@ -0,0 +1,417 @@
+# configure.host
+
+# This shell script handles all host based configuration for libgcj.
+# It sets various shell variables based on the the host and the
+# configuration options.  You can modify this shell script without
+# needing to rerun autoconf.
+
+# This shell script should be invoked as
+#   . configure.host
+# If it encounters an error, it will exit with a message.
+
+# It uses the following shell variables:
+#   host		The configuration host
+#   host_cpu		The configuration host CPU
+#   target_optspace	--enable-target-optspace ("yes", "no", "")
+
+# It sets the following shell variables:
+#   libgcj_cflags	Special CFLAGS to use when building
+#   libgcj_cxxflags	Special CXXFLAGS to use when building
+#   libgcj_javaflags	Special JAVAFLAGS to use when building
+#   libgcj_sublib_ltflags  Special Libtool flags to use when building sublibs
+#   libgcj_sublib_core_extra_deps  Extra dependencies to add to core sublib
+#   libgcj_interpreter  If the bytecode interpreter supports this platform.
+#   enable_java_net_default  If java.net native code should be enabled by
+#                            default.
+#   enable_hash_synchronization_default  If hash synchronization should be
+#                                        enabled by default.
+#   enable_libgcj_sublibs_default  Whether to build libgcj as a bunch of
+#                                  separate shared libraries or in one 
+#                                  monolithic one.
+#   sysdeps_dir		Directory containing system-dependent headers
+#   slow_pthread_self   The synchronization code should try to avoid 
+#			pthread_self calls by caching thread IDs in a hashtable
+#   can_unwind_signal   Set to "yes" if the EH unwinder supports throwing
+#			from a signal handler.
+#   fallback_backtrace_h  Header to use for fallback backtrace implementation
+#			  (only for targets that don't support DWARF2 unwind)
+#   descriptor_h	Header to use for looking past function descriptors
+#   use_libgcj_bc	Whether to build a "libgcj-bc" library for BC-ABI
+#			binaries to link against.
+
+libgcj_flags=
+libgcj_cflags=
+libgcj_cxxflags=
+libgcj_javaflags=
+libgcj_sublib_ltflags=
+libgcj_sublib_core_extra_deps=
+libgcj_interpreter=
+enable_java_net_default=yes
+enable_hash_synchronization_default=no
+enable_libgcj_sublibs_default=no
+sysdeps_dir=generic
+slow_pthread_self=
+can_unwind_signal=no
+fallback_backtrace_h=sysdep/generic/backtrace.h
+
+case "${target_optspace}:${host}" in
+  yes:*)
+    libgcj_flags="${libgcj_flags} -Os"
+    ;;
+  :m32r-* | :d10v-* | :d30v-*)
+    libgcj_flags="${libgcj_flags} -Os"
+    ;;
+  no:* | :*)
+    # Nothing.
+    ;;
+esac
+
+AM_RUNTESTFLAGS= 
+
+# Set any host dependent compiler flags.
+# THIS TABLE IS SORTED.  KEEP IT THAT WAY.
+
+echo "$target"
+
+DIVIDESPEC=-fuse-divide-subroutine
+EXCEPTIONSPEC=-fnon-call-exceptions
+CHECKREFSPEC=
+BACKTRACESPEC=
+ATOMICSPEC=
+
+# This case statement supports per-CPU defaults.
+case "${host}" in
+  aarch64*-linux*)
+	libgcj_interpreter=yes
+	sysdeps_dir=aarch64
+	ATOMICSPEC=-fuse-atomic-builtins
+	;;
+  arm*-elf)
+	with_libffi_default=no
+	PROCESS=Ecos
+	FILE=Posix
+	CHECKREFSPEC=-fcheck-references
+	EXCEPTIONSPEC=
+	enable_java_net_default=no
+	enable_getenv_properties_default=no
+	enable_main_args_default=no
+	sysdeps_dir=arm
+	;;
+  arm*-linux*)
+	libgcj_interpreter=yes
+	sysdeps_dir=arm
+	fallback_backtrace_h=sysdep/arm/backtrace.h
+	libgcj_cxxflags=-Wno-abi
+	ATOMICSPEC=-fuse-atomic-builtins
+	# Work around a strange libtool feature that causes libraries
+	# to be linked with libgcc_s but not libgcc.  
+	LDFLAGS="${LDFLAGS} -Wl,-lgcc"
+	;;
+  mips-tx39-*|mipstx39-unknown-*)
+	libgcj_flags="${libgcj_flags} -G 0"
+	LDFLAGS="$LDFLAGS -Tjmr3904dram.ld"
+	AM_RUNTESTFLAGS="--target_board=jmr3904-sim"	
+	# Use "Ecos" processes since they are a no-op.
+	PROCESS=Ecos
+	FILE=Posix
+ 	enable_java_net_default=no
+ 	enable_getenv_properties_default=no
+	;;
+  mips*-*)
+	libgcj_interpreter=yes
+	;;
+  i686-*|i586-*|i486-*|i386-*)
+	sysdeps_dir=i386
+	# With -fomit-frame-pointer -maccumulate-outgoing-args (implied),
+	# the .text section of libgcj.so is 30k larger, and the .eh_frame
+	# section is 1.4M smaller.
+	libgcj_flags="${libgcj_flags} -ffloat-store -fomit-frame-pointer"
+	# On Solaris we have defined 'sun' which later conflicts with 
+	# namespace usage. So to work this away we use the below undefine.
+	libgcj_flags="${libgcj_flags} -Usun"
+	libgcj_interpreter=yes
+	libgcj_cxxflags=
+	libgcj_cflags=
+	DIVIDESPEC=-fno-use-divide-subroutine
+	enable_hash_synchronization_default=yes
+	slow_pthread_self=yes
+	;;
+  x86_64-*)
+	sysdeps_dir=i386
+	# For 64-bit we always use SSE registers for arithmetic,
+	# which doesn't have the extra precision problems of the fpu.
+	# But be careful about 32-bit multilibs.
+	case " $CC " in
+	*" -m32 "*)
+		libgcj_flags="${libgcj_flags} -ffloat-store" ;;
+	esac
+	libgcj_flags="${libgcj_flags} -fomit-frame-pointer"
+	# On Solaris we have defined 'sun' which later conflicts with 
+	# namespace usage. So to work this away we use the below undefine.
+	libgcj_flags="${libgcj_flags} -Usun"
+	libgcj_cxxflags=
+	libgcj_cflags=
+	DIVIDESPEC=-fno-use-divide-subroutine
+	enable_hash_synchronization_default=yes
+	slow_pthread_self=yes
+	libgcj_interpreter=yes
+	;;
+  alpha*-*)
+	sysdeps_dir=alpha
+	libgcj_flags="${libgcj_flags} -mieee"
+	libgcj_interpreter=yes
+	enable_hash_synchronization_default=yes
+	IEEESPEC=-mieee
+	;;
+  hppa*-*)
+	sysdeps_dir=pa
+	libgcj_interpreter=yes
+	enable_hash_synchronization_default=no
+	;;
+  m68k-*)
+	sysdeps_dir=m68k
+	libgcj_interpreter=yes
+	;;
+  powerpc64*-*)
+	sysdeps_dir=powerpc
+	libgcj_interpreter=yes
+	if [ x`$CC -print-multi-os-directory` = x../lib64 ]; then
+	    libgcj_flags="${libgcj_flags} -mminimal-toc"
+	fi
+	enable_hash_synchronization_default=yes
+	slow_pthread_self=yes
+	;;
+  powerpc*-*)
+	sysdeps_dir=powerpc
+	libgcj_interpreter=yes
+	enable_hash_synchronization_default=yes
+	slow_pthread_self=yes
+	;;
+  s390*-*)
+	sysdeps_dir=s390
+	libgcj_interpreter=yes
+	DIVIDESPEC=-fno-use-divide-subroutine
+	enable_hash_synchronization_default=yes
+	;;
+  sparc*-*)
+	sysdeps_dir=sparc
+	# On Solaris we have defined 'sun' which later conflicts with 
+	# namespace usage. So to work this away we use the below undefine.
+	libgcj_flags="${libgcj_flags} -Usun"
+	libgcj_interpreter=yes
+        ;;
+  ia64-*)
+	sysdeps_dir=ia64
+        libgcj_flags="${libgcj_flags} -funwind-tables"
+	libgcj_interpreter=yes
+	enable_hash_synchronization_default=yes
+	;;
+  sh-* | sh[34]*-*)
+	sysdeps_dir=sh
+	libgcj_flags="${libgcj_flags} -mieee"
+	libgcj_interpreter=yes
+	enable_hash_synchronization_default=yes
+	IEEESPEC=-mieee
+	;;
+esac
+
+# This case statement supports generic port properties and may refine
+# the above per-CPU defaults.  Note: If your OS implements
+# MD_FALLBACK_FRAME_STATE_FOR, then you want to set can_unwind_signal
+# here.
+case "${host}" in
+  i[34567]86*-linux* | \
+  powerpc*-linux* | \
+  alpha*-linux* | \
+  s390*-linux* | \
+  sparc*-linux* | \
+  ia64-* | \
+  x86_64*-linux* | \
+  hppa*-linux* | \
+  m68k*-linux* | \
+  sh-linux* | sh[34]*-linux*)
+  	can_unwind_signal=yes
+	libgcj_ld_symbolic='-Wl,-Bsymbolic'
+	if test x$slow_pthread_self = xyes \
+	   && test x$cross_compiling != xyes; then
+	  cat > conftest.c <<EOF
+#define _GNU_SOURCE 1
+#include <pthread.h>
+#include <stdlib.h>
+#include <sys/resource.h>
+#include <limits.h>
+
+void *
+tf (void *arg __attribute__ ((unused)))
+{
+  pthread_attr_t a;
+  size_t s;
+
+  if (pthread_getattr_np (pthread_self (), &a)
+      || pthread_attr_getstacksize (&a, &s)
+      || s > 2 * PTHREAD_STACK_MIN)
+    exit (1);
+  exit (0);
+}
+
+int
+main (int argc, char **argv)
+{
+  pthread_t p;
+  void *ret;
+  struct rlimit r;
+
+  if (argc == 2)
+    {
+      r.rlim_cur = 2 * PTHREAD_STACK_MIN;
+      r.rlim_max = 2 * PTHREAD_STACK_MIN;
+      if (setrlimit (RLIMIT_STACK, &r))
+	exit (1);
+      execl (argv[1], argv[0], NULL);
+      exit (1);
+    }
+
+  if (pthread_create (&p, NULL, tf, NULL)
+      || pthread_join (p, &ret))
+    exit (1);
+  exit (1);
+}
+EOF
+	  $CC -o conftest conftest.c -lpthread > /dev/null 2>&1 && \
+	  ./conftest ./conftest && slow_pthread_self=
+	  rm -f conftest conftest.c
+	fi
+	;;
+  i[34567]86*-kfreebsd*-gnu | x86_64*-kfreebsd*-gnu)
+        libgcj_ld_symbolic='-Wl,-Bsymbolic'
+        slow_pthread_self=
+        ;;
+  i[34567]86-*-solaris2.1[0-9]* )
+	sysdeps_dir=i386
+	DIVIDESPEC=-f%{m32:no-}%{!m32:%{!m64:no-}}%{m64:}use-divide-subroutine
+	;;
+  x86_64-*-solaris2.1[0-9]* )
+	sysdeps_dir=i386
+	DIVIDESPEC=-f%{m32:no-}use-divide-subroutine
+	;;
+  aarch64*-linux* )
+	slow_pthread_self=no
+	can_unwind_signal=no
+	CHECKREFSPEC=-fcheck-references
+	DIVIDESPEC=-fuse-divide-subroutine
+	;;
+  arm*-linux* )
+	slow_pthread_self=no
+	can_unwind_signal=no
+	CHECKREFSPEC=-fcheck-references
+	DIVIDESPEC=-fuse-divide-subroutine
+	;;
+  mips*-*-linux* )
+  	sysdeps_dir=mips
+  	can_unwind_signal=yes
+	DIVIDESPEC=-fno-use-divide-subroutine
+	enable_hash_synchronization_default=yes
+	;;
+  powerpc*-*-darwin*)
+	enable_hash_synchronization_default=yes
+	slow_pthread_self=
+	can_unwind_signal=yes
+	;;
+  i?86-*-darwin*)
+	enable_hash_synchronization_default=yes
+	slow_pthread_self=
+	can_unwind_signal=no
+	;;
+  i?86-*-darwin[912]*)
+	can_unwind_signal=yes
+	DIVIDESPEC=-f%{m32:no-}%{!m32:%{!m64:no-}}%{m64:}use-divide-subroutine
+        ;;
+  x86_64-*-darwin[912]*)
+	enable_hash_synchronization_default=yes
+	slow_pthread_self=
+	can_unwind_signal=yes
+	DIVIDESPEC=-fuse-divide-subroutine
+	CHECKREFSPEC=-fcheck-references
+	;;
+  i?86-*-solaris2* | x86_64-*-solaris2.1[0-9]*)
+	can_unwind_signal=yes
+	;;
+  *-*-freebsd*)
+	slow_pthread_self=
+	;;
+  *-mingw*)
+        libgcj_flags="${libgcj_flags} -fno-omit-frame-pointer"
+  	# FIXME: win32_exception_handler( ) in win32.cc does not do the
+	# right stuff yet w.r.t. SEH. Live with the following for now.
+	can_unwind_signal=no
+	CHECKREFSPEC=-fcheck-references
+	DIVIDESPEC=-fuse-divide-subroutine
+	;;
+  *-cygwin*)
+  	# The cygwin linker doesn't do 8-byte alignment by default, so
+	# disable hash synchronization for now.
+	enable_hash_synchronization_default=no
+	slow_pthread_self=
+	;;
+  hppa*-hp-hpux11.*)
+	slow_pthread_self=no
+	can_unwind_signal=yes
+	DIVIDESPEC=-fuse-divide-subroutine
+	;;
+  sparc*-sun-solaris2.*)
+	slow_pthread_self=
+	can_unwind_signal=yes
+	;;
+esac
+
+case "${host}" in
+  *-cygwin* | *-mingw*)
+	fallback_backtrace_h=sysdep/i386/backtrace.h  
+	# We need a frame pointer on Windows, so override BACKTRACESPEC
+  	BACKTRACESPEC=
+	# Win32 DLLs are limited to 64k exported symbols each.
+	enable_libgcj_sublibs_default=yes
+	libgcj_sublib_ltflags='$(lt_host_flags) \
+	    -Wl,-u,__ZN3org4ietf4jgss10GSSManagerC1Ev,-L..,-lgcj-noncore-dummy'
+	libgcj_sublib_core_extra_deps=libgcj-noncore-dummy.dll.a
+  ;;
+esac
+
+case "${host}" in
+  ia64-*)
+	descriptor_h=sysdep/descriptor-y.h
+	;;
+
+  hppa*64*-*-hpux*)
+	descriptor_h=sysdep/pa/descriptor-pa64-hpux.h
+	;;
+
+  hppa*-*-hpux*)
+	descriptor_h=sysdep/pa/descriptor-pa32-hpux.h
+	;;
+
+  hppa*-*)
+	descriptor_h=sysdep/pa/descriptor.h
+	;;
+
+  rs6000-* | powerpc*-*)
+	descriptor_h=sysdep/powerpc/descriptor.h
+	;;
+
+  *)
+	descriptor_h=sysdep/descriptor-n.h
+	;;
+esac
+
+case "${host}" in
+  *linux*|*-kfreebsd*-gnu|*-gnu*)
+    use_libgcj_bc=yes
+  ;;
+  *)
+    use_libgcj_bc=no
+  ;;
+esac    
+
+libgcj_cflags="${libgcj_cflags} ${libgcj_flags}"
+libgcj_cxxflags="${libgcj_cxxflags} ${libgcj_flags}"
+libgcj_javaflags="${libgcj_javaflags} ${libgcj_flags}"