4559716751
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
118 lines
3.2 KiB
Plaintext
118 lines
3.2 KiB
Plaintext
# configure.host
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# This shell script handles all host based configuration for libgcj.
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# It sets various shell variables based on the the host and the
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# configuration options. You can modify this shell script without
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# needing to rerun autoconf.
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# This shell script should be invoked as
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# . configure.host
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# If it encounters an error, it will exit with a message.
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# It uses the following shell variables:
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# host The configuration host
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# host_cpu The configuration host CPU
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# target_optspace --enable-target-optspace ("yes", "no", "")
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# It sets the following shell variables:
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# libgcj_cflags Special CFLAGS to use when building
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# libgcj_cxxflags Special CXXFLAGS to use when building
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# libgcj_javaflags Special JAVAFLAGS to use when building
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# libgcj_interpreter If the bytecode interpreter supports this platform.
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# enable_java_net_default If java.net native code should be enabled by
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# default.
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# enable_hash_synchronization_default If hash synchronization should be
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# enabled by default.
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# sysdeps_dir Directory containing system-dependent headers
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# slow_pthread_self The synchronization code should try to avoid
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# pthread_self calls by caching thread IDs in a hashtable
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libgcj_flags=
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libgcj_cflags=
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libgcj_cxxflags=
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libgcj_javaflags=
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libgcj_interpreter=
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enable_java_net_default=yes
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enable_hash_synchronization_default=no
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sysdeps_dir=generic
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slow_pthread_self=
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case "${target_optspace}:${host}" in
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yes:*)
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libgcj_flags="${libgcj_flags} -Os"
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;;
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:m32r-* | :d10v-* | :d30v-*)
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libgcj_flags="${libgcj_flags} -Os"
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;;
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no:* | :*)
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# Nothing.
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;;
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esac
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AM_RUNTESTFLAGS=
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# Set any host dependent compiler flags.
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# THIS TABLE IS SORTED. KEEP IT THAT WAY.
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echo "$target"
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DIVIDESPEC=-fuse-divide-subroutine
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EXCEPTIONSPEC=-fnon-call-exceptions
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case "${host}" in
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mips-tx39-*|mipstx39-unknown-*)
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libgcj_flags="${libgcj_flags} -G 0"
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LDFLAGS="$LDFLAGS -Tjmr3904dram.ld"
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AM_RUNTESTFLAGS="--target_board=jmr3904-sim"
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# Use "Ecos" processes since they are a no-op.
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PROCESS=Ecos
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enable_java_net_default=no
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enable_getenv_properties_default=no
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;;
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i686-*|i586-*|i486-*|i386-*)
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sysdeps_dir=i386
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libgcj_flags="${libgcj_flags} -ffloat-store"
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libgcj_interpreter=yes
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libgcj_cxxflags="-D__NO_MATH_INLINES"
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libgcj_cflags="-D__NO_MATH_INLINES"
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DIVIDESPEC=-fno-use-divide-subroutine
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enable_hash_synchronization_default=yes
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slow_pthread_self=yes
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;;
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alpha*-*)
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sysdeps_dir=alpha
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libgcj_flags="${libgcj_flags} -mieee"
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libgcj_interpreter=yes
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enable_hash_synchronization_default=yes
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;;
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powerpc*-linux*)
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sysdeps_dir=powerpc
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libgcj_interpreter=yes
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enable_hash_synchronization_default=yes
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slow_pthread_self=yes
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;;
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powerpc*-darwin*)
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sysdeps_dir=powerpc
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libgcj_interpreter=no
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;;
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sparc-*)
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;;
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ia64-*)
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sysdeps_dir=ia64
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libgcj_flags="${libgcj_flags} -funwind-tables"
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libgcj_interpreter=yes
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enable_hash_synchronization_default=yes
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;;
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xscale*-elf)
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with_libffi_default=no
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PROCESS=Ecos
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enable_java_net_default=no
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enable_getenv_properties_default=no
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enable_main_args_default=no
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;;
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esac
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libgcj_cflags="${libgcj_cflags} ${libgcj_flags}"
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libgcj_cxxflags="${libgcj_cxxflags} ${libgcj_flags}"
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libgcj_javaflags="${libgcj_javaflags} ${libgcj_flags}"
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