From 4559716751fbd3424466237af54537ed96a428c3 Mon Sep 17 00:00:00 2001 From: Bryce McKinlay Date: Sun, 10 Mar 2002 03:53:16 +0000 Subject: Hashtable synchronization for PowerPC. 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. From-SVN: r50523 --- libjava/configure.host | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) (limited to 'libjava/configure.host') diff --git a/libjava/configure.host b/libjava/configure.host index d8eb571..a073d51 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 -- cgit v1.1