libjava:

	Hashtable synchronization for PowerPC.
	* configure.in: Define SLOW_PTHREAD_SELF if configure.host set
	slow_pthread_self. Set up symlink for sysdeps directory.
	* configure: Rebuild.
	* configure.host: Document more shell variables. Set sysdeps_dir
	for most platforms. Set slow_pthread_self for i686. Set
	enable_hash_synchronization_default and slow_pthread_self for PowerPC.
	* posix-threads.cc (_Jv_ThreadSelf_out_of_line): Use release_set so
	that memory barrier is emitted where required.
	* prims.cc: 64-bit align static primitive class instances.
	* include/posix-threads.h (_Jv_ThreadSelf for SLOW_PTHREAD_SELF): Add
	read_barrier() to enforce ordering of reads.
	* sysdep/powerpc/locks.h: New file. Implementation of synchronization
	primitives for PowerPC.
	* sysdep/i386/locks.h: New file. Synchronization primitives for i386
	moved from natObject.cc.
	* sysdep/alpha/locks.h: Likewise.
	* sysdep/ia64/locks.h: Likewise.
	* sysdep/generic/locks.h: Likewise.
	* java/lang/natObject.cc: Move thread synchronization primitives to
	system-dependent headers.
gcc/java:
	* decl.c (java_init_decl_processing): Make sure class_type_node
	alignment is not less than 64 bits if hash synchronization isenabled.

boehm-gc:
	* include/gc_priv.h: Define ALIGN_DOUBLE on 32 bit targets if GCJ
	support is enabled, for hash synchronization.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50523 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 19 insertions, 1 deletions

diff --git a/libjava/configure.host b/libjava/configure.host
index d8eb5714e3a..a073d5114c7 100644
--- a/libjava/configure.host
+++ b/libjava/configure.host
@@ -18,6 +18,14 @@
 #   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_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.
+#   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
 
 libgcj_flags=
 libgcj_cflags=
@@ -26,6 +34,8 @@ libgcj_javaflags=
 libgcj_interpreter=
 enable_java_net_default=yes
 enable_hash_synchronization_default=no
+sysdeps_dir=generic
+slow_pthread_self=
 
 case "${target_optspace}:${host}" in
   yes:*)
@@ -60,27 +70,35 @@ case "${host}" in
  	enable_getenv_properties_default=no
 	;;
   i686-*|i586-*|i486-*|i386-*)
+	sysdeps_dir=i386
 	libgcj_flags="${libgcj_flags} -ffloat-store"
 	libgcj_interpreter=yes
 	libgcj_cxxflags="-D__NO_MATH_INLINES"
 	libgcj_cflags="-D__NO_MATH_INLINES"
 	DIVIDESPEC=-fno-use-divide-subroutine
 	enable_hash_synchronization_default=yes
+	slow_pthread_self=yes
 	;;
   alpha*-*)
+	sysdeps_dir=alpha
 	libgcj_flags="${libgcj_flags} -mieee"
 	libgcj_interpreter=yes
 	enable_hash_synchronization_default=yes
 	;;
   powerpc*-linux*)
+	sysdeps_dir=powerpc
 	libgcj_interpreter=yes
+	enable_hash_synchronization_default=yes
+	slow_pthread_self=yes
 	;;
-  powerpc-apple-*)
+  powerpc*-darwin*)
+	sysdeps_dir=powerpc
         libgcj_interpreter=no
 	;;
   sparc-*)
         ;;
   ia64-*)
+	sysdeps_dir=ia64
         libgcj_flags="${libgcj_flags} -funwind-tables"
 	libgcj_interpreter=yes
 	enable_hash_synchronization_default=yes