libjava/configure.host

   1 # configure.host
   2
   3 # This shell script handles all host based configuration for libgcj.
   4 # It sets various shell variables based on the the host and the
   5 # configuration options.  You can modify this shell script without
   6 # needing to rerun autoconf.
   7
   8 # This shell script should be invoked as
   9 #   . configure.host
  10 # If it encounters an error, it will exit with a message.
  11
  12 # It uses the following shell variables:
  13 #   host                The configuration host
  14 #   host_cpu            The configuration host CPU
  15 #   target_optspace     --enable-target-optspace ("yes", "no", "")
  16
  17 # It sets the following shell variables:
  18 #   libgcj_cflags       Special CFLAGS to use when building
  19 #   libgcj_cxxflags     Special CXXFLAGS to use when building
  20 #   libgcj_javaflags    Special JAVAFLAGS to use when building
  21 #   libgcj_interpreter  If the bytecode interpreter supports this platform.
  22 #   enable_java_net_default  If java.net native code should be enabled by
  23 #                            default.
  24 #   enable_hash_synchronization_default  If hash synchronization should be
  25 #                                        enabled by default.
  26 #   sysdeps_dir         Directory containing system-dependent headers
  27 #   slow_pthread_self   The synchronization code should try to avoid
  28 #                       pthread_self calls by caching thread IDs in a hashtable
  29 #   can_unwind_signal   Set to "yes" if the EH unwinder supports throwing
  30 #                       from a signal handler.
  31
  32 libgcj_flags=
  33 libgcj_cflags=
  34 libgcj_cxxflags=
  35 libgcj_javaflags=
  36 libgcj_interpreter=
  37 enable_java_net_default=yes
  38 enable_hash_synchronization_default=no
  39 sysdeps_dir=generic
  40 slow_pthread_self=
  41 can_unwind_signal=no
  42
  43 case "${target_optspace}:${host}" in
  44   yes:*)
  45     libgcj_flags="${libgcj_flags} -Os"
  46     ;;
  47   :m32r-* | :d10v-* | :d30v-*)
  48     libgcj_flags="${libgcj_flags} -Os"
  49     ;;
  50   no:* | :*)
  51     # Nothing.
  52     ;;
  53 esac
  54
  55 AM_RUNTESTFLAGS=
  56
  57 # Set any host dependent compiler flags.
  58 # THIS TABLE IS SORTED.  KEEP IT THAT WAY.
  59
  60 echo "$target"
  61
  62 DIVIDESPEC=-fuse-divide-subroutine
  63 EXCEPTIONSPEC=-fnon-call-exceptions
  64 CHECKREFSPEC=
  65
  66 # This case statement supports per-CPU defaults.
  67 case "${host}" in
  68   mips-tx39-*|mipstx39-unknown-*)
  69         libgcj_flags="${libgcj_flags} -G 0"
  70         LDFLAGS="$LDFLAGS -Tjmr3904dram.ld"
  71         AM_RUNTESTFLAGS="--target_board=jmr3904-sim"
  72         # Use "Ecos" processes since they are a no-op.
  73         PROCESS=Ecos
  74         FILE=Posix
  75         enable_java_net_default=no
  76         enable_getenv_properties_default=no
  77         ;;
  78   i686-*|i586-*|i486-*|i386-*)
  79         sysdeps_dir=i386
  80         libgcj_flags="${libgcj_flags} -ffloat-store"
  81         libgcj_interpreter=yes
  82         libgcj_cxxflags="-D__NO_MATH_INLINES"
  83         libgcj_cflags="-D__NO_MATH_INLINES"
  84         DIVIDESPEC=-fno-use-divide-subroutine
  85         enable_hash_synchronization_default=yes
  86         slow_pthread_self=yes
  87         ;;
  88   x86_64-*)
  89         sysdeps_dir=x86-64
  90         libgcj_flags="${libgcj_flags} -ffloat-store"
  91         libgcj_interpreter=no
  92         libgcj_cxxflags="-D__NO_MATH_INLINES"
  93         libgcj_cflags="-D__NO_MATH_INLINES"
  94         DIVIDESPEC=-fno-use-divide-subroutine
  95         enable_hash_synchronization_default=yes
  96         slow_pthread_self=yes
  97         ;;
  98   alpha*-*)
  99         sysdeps_dir=alpha
 100         libgcj_flags="${libgcj_flags} -mieee"
 101         libgcj_interpreter=yes
 102         enable_hash_synchronization_default=yes
 103         ;;
 104   powerpc*-*)
 105         sysdeps_dir=powerpc
 106         libgcj_interpreter=yes
 107         enable_hash_synchronization_default=yes
 108         slow_pthread_self=yes
 109         ;;
 110   sparc-*)
 111         ;;
 112   ia64-*)
 113         sysdeps_dir=ia64
 114         libgcj_flags="${libgcj_flags} -funwind-tables"
 115         libgcj_interpreter=yes
 116         enable_hash_synchronization_default=yes
 117         ;;
 118   xscale*-elf)
 119         with_libffi_default=no
 120         PROCESS=Ecos
 121         FILE=Posix
 122         CHECKREFSPEC=-fcheck-references
 123         EXCEPTIONSPEC=
 124         enable_java_net_default=no
 125         enable_getenv_properties_default=no
 126         enable_main_args_default=no
 127         ;;
 128 esac
 129
 130 # This case statement supports generic port properties and may refine
 131 # the above per-CPU defaults.  Note: If your OS implements
 132 # MD_FALLBACK_FRAME_STATE_FOR, then you want to set can_unwind_signal
 133 # here.
 134 case "${host}" in
 135   i[34567]86*-linux* | \
 136   powerpc*-linux* | \
 137   alpha*-linux* | \
 138   s390*-linux* | \
 139   sparc*-linux* | \
 140   ia64-* | \
 141   x86_64*-linux*)
 142         can_unwind_signal=yes
 143         ;;
 144   *-*-darwin*)
 145         enable_hash_synchronization_default=no
 146         slow_pthread_self=
 147         ;;
 148   *-*-freebsd*)
 149         slow_pthread_self=
 150         ;;
 151   *-cygwin*)
 152         # The cygwin linker doesn't do 8-byte alignment by default, so
 153         # disable hash synchronization for now.
 154         enable_hash_synchronization_default=no
 155         slow_pthread_self=
 156         ;;
 157 esac
 158
 159 libgcj_cflags="${libgcj_cflags} ${libgcj_flags}"
 160 libgcj_cxxflags="${libgcj_cxxflags} ${libgcj_flags}"
 161 libgcj_javaflags="${libgcj_javaflags} ${libgcj_flags}"