# 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. # disable_dladdr Set to "yes" if dladdr should not be used # (i.e it is broken). 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 disable_dladdr= 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 arm*-elf | strongarm*-elf | 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 ;; 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="${libgcj_flags} -ffloat-store -fno-omit-frame-pointer" libgcj_interpreter=yes libgcj_cxxflags= libgcj_cflags= DIVIDESPEC=-fno-use-divide-subroutine enable_hash_synchronization_default=yes slow_pthread_self=yes ;; x86_64-*) sysdeps_dir=x86-64 libgcj_flags="${libgcj_flags} -ffloat-store -fno-omit-frame-pointer" libgcj_cxxflags= libgcj_cflags= DIVIDESPEC=-f%{m32:no-}use-divide-subroutine enable_hash_synchronization_default=yes slow_pthread_self=yes libgcj_interpreter=yes ;; alpha*-*) sysdeps_dir=alpha libgcj_flags="${libgcj_flags} -mieee" libgcj_interpreter=yes enable_hash_synchronization_default=yes IEEESPEC=-mieee ;; hppa-*) sysdeps_dir=pa libgcj_interpreter=yes enable_hash_synchronization_default=yes ;; powerpc64*-*) sysdeps_dir=powerpc libgcj_interpreter=yes if [ x`$CC -print-multi-os-directory` = x../lib64 ]; then libgcj_flags="${libgcj_flags} -mminimal-toc" fi enable_hash_synchronization_default=yes slow_pthread_self=yes ;; powerpc*-*) sysdeps_dir=powerpc libgcj_interpreter=yes enable_hash_synchronization_default=yes slow_pthread_self=yes ;; s390*-*) sysdeps_dir=s390 libgcj_interpreter=yes DIVIDESPEC=-fno-use-divide-subroutine enable_hash_synchronization_default=yes ;; sparc*-*) libgcj_interpreter=yes ;; ia64-*) sysdeps_dir=ia64 libgcj_flags="${libgcj_flags} -funwind-tables" libgcj_interpreter=yes enable_hash_synchronization_default=yes ;; sh-* | sh[34]*-*) sysdeps_dir=sh libgcj_flags="${libgcj_flags} -mieee" libgcj_interpreter=yes enable_hash_synchronization_default=yes ;; esac # This case statement supports generic port properties and may refine # the above per-CPU defaults. Note: If your OS implements # MD_FALLBACK_FRAME_STATE_FOR, then you want to set can_unwind_signal # here. case "${host}" in i[34567]86*-linux* | \ powerpc*-linux* | \ alpha*-linux* | \ s390*-linux* | \ sparc*-linux* | \ ia64-* | \ x86_64*-linux* | \ hppa*-linux* | \ sh-linux* | sh[34]*-linux*) can_unwind_signal=yes libgcj_ld_symbolic='-Wl,-Bsymbolic' if test x$slow_pthread_self = xyes \ && test x$cross_compiling != xyes; then cat > conftest.c <<EOF #define _GNU_SOURCE 1 #include <pthread.h> #include <stdlib.h> #include <sys/resource.h> #include <limits.h> void * tf (void *arg __attribute__ ((unused))) { pthread_attr_t a; size_t s; if (pthread_getattr_np (pthread_self (), &a) || pthread_attr_getstacksize (&a, &s) || s > 2 * PTHREAD_STACK_MIN) exit (1); exit (0); } int main (int argc, char **argv) { pthread_t p; void *ret; struct rlimit r; if (argc == 2) { r.rlim_cur = 2 * PTHREAD_STACK_MIN; r.rlim_max = 2 * PTHREAD_STACK_MIN; if (setrlimit (RLIMIT_STACK, &r)) exit (1); execl (argv[1], argv[0], NULL); exit (1); } if (pthread_create (&p, NULL, tf, NULL) || pthread_join (p, &ret)) exit (1); exit (1); } EOF $CC -o conftest conftest.c -lpthread > /dev/null 2>&1 && \ ./conftest ./conftest && slow_pthread_self= rm -f conftest conftest.c fi ;; mips*-*-linux* ) sysdeps_dir=mips can_unwind_signal=yes libgcj_flags="${libgcj_flags} -mxgot" DIVIDESPEC=-fno-use-divide-subroutine case "${host}" in mipsel*-linux* | mipsisa32el*-linux*) enable_hash_synchronization_default=yes disable_dladdr=yes ;; esac ;; powerpc*-*-darwin*) enable_hash_synchronization_default=yes slow_pthread_self= can_unwind_signal=yes ;; *-*-freebsd*) slow_pthread_self= ;; *-mingw*) # FIXME: win32_exception_handler( ) in win32.cc does not do the # right stuff yet w.r.t. SEH. Live with the following for now. can_unwind_signal=no CHECKREFSPEC=-fcheck-references DIVIDESPEC=-fuse-divide-subroutine ;; *-cygwin*) # The cygwin linker doesn't do 8-byte alignment by default, so # disable hash synchronization for now. enable_hash_synchronization_default=no slow_pthread_self= ;; esac libgcj_cflags="${libgcj_cflags} ${libgcj_flags}" libgcj_cxxflags="${libgcj_cxxflags} ${libgcj_flags}" libgcj_javaflags="${libgcj_javaflags} ${libgcj_flags}"