source: trunk/src/gcc/libjava/configure.host@ 1226

# 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_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
#   can_unwind_signal   Set to "yes" if the EH unwinder supports throwing
#                       from a signal handler.

libgcj_flags=
libgcj_cflags=
libgcj_cxxflags=
libgcj_javaflags=
libgcj_interpreter=
enable_java_net_default=yes
enable_hash_synchronization_default=no
sysdeps_dir=generic
slow_pthread_self=
can_unwind_signal=no

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=

# This case statement supports per-CPU defaults.
case "${host}" in
  mips-tx39-*|mipstx39-unknown-*)
        libgcj_flags="${libgcj_flags} -G 0"
        LDFLAGS="$LDFLAGS -Tjmr3904dram.ld"
        AM_RUNTESTFLAGS="--target_board=jmr3904-sim"    
        # Use "Ecos" processes since they are a no-op.
        PROCESS=Ecos
        FILE=Posix
        enable_java_net_default=no
        enable_getenv_properties_default=no
        ;;
  i686-*|i586-*|i486-*|i386-*)
        sysdeps_dir=i386
        libgcj_flags="${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="${libgcj_flags} -mieee"
        libgcj_interpreter=yes
        enable_hash_synchronization_default=yes
        ;;
  powerpc*-*)
        sysdeps_dir=powerpc
        libgcj_interpreter=yes
        enable_hash_synchronization_default=yes
        slow_pthread_self=yes
        ;;
  sparc-*)
        ;;
  ia64-*)
        sysdeps_dir=ia64
        libgcj_flags="${libgcj_flags} -funwind-tables"
        libgcj_interpreter=yes
        enable_hash_synchronization_default=yes
        ;;
  xscale*-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
        ;;
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* | \
  sparc*-linux* | \
  ia64-*)
        can_unwind_signal=yes
        ;;
  *-*-darwin*)
        enable_hash_synchronization_default=no
        slow_pthread_self=
        ;;
  *-*-freebsd*)
        slow_pthread_self=
        ;;
  *-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=
        ;;
esac

libgcj_cflags="${libgcj_cflags} ${libgcj_flags}"
libgcj_cxxflags="${libgcj_cxxflags} ${libgcj_flags}"
libgcj_javaflags="${libgcj_javaflags} ${libgcj_flags}"