# 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.
+# fallback_backtrace_h Header to use for fallback backtrace implementation
+# (only for targets that don't support DWARF2 unwind)
+# descriptor_h Header to use for looking past function descriptors
+# use_libgcj_bc Whether to build a "libgcj-bc" library for BC-ABI
+# binaries to link against.
libgcj_flags=
libgcj_cflags=
sysdeps_dir=generic
slow_pthread_self=
can_unwind_signal=no
+fallback_backtrace_h=sysdep/generic/backtrace.h
case "${target_optspace}:${host}" in
yes:*)
DIVIDESPEC=-fuse-divide-subroutine
EXCEPTIONSPEC=-fnon-call-exceptions
CHECKREFSPEC=
+BACKTRACESPEC=
# This case statement supports per-CPU defaults.
case "${host}" in
enable_java_net_default=no
enable_getenv_properties_default=no
enable_main_args_default=no
+ sysdeps_dir=arm
+ ;;
+ arm*-linux*)
+ libgcj_interpreter=yes
+ sysdeps_dir=arm
;;
mips-tx39-*|mipstx39-unknown-*)
libgcj_flags="${libgcj_flags} -G 0"
enable_java_net_default=no
enable_getenv_properties_default=no
;;
+ mipsel-*|mips-*)
+ libgcj_interpreter=yes
+ ;;
i686-*|i586-*|i486-*|i386-*)
sysdeps_dir=i386
- libgcj_flags="${libgcj_flags} -ffloat-store"
+ # With -fomit-frame-pointer -maccumulate-outgoing-args (implied),
+ # the .text section of libgcj.so is 30k larger, and the .eh_frame
+ # section is 1.4M smaller.
+ libgcj_flags="${libgcj_flags} -ffloat-store -fomit-frame-pointer"
+ # On Solaris we have defined 'sun' which later conflicts with
+ # namespace usage. So to work this away we use the below undefine.
+ libgcj_flags="${libgcj_flags} -Usun"
libgcj_interpreter=yes
- libgcj_cxxflags="-D__NO_MATH_INLINES"
- libgcj_cflags="-D__NO_MATH_INLINES"
+ libgcj_cxxflags=
+ libgcj_cflags=
DIVIDESPEC=-fno-use-divide-subroutine
enable_hash_synchronization_default=yes
slow_pthread_self=yes
;;
x86_64-*)
- CHECKREFSPEC="%{m32:-fcheck-references}"
sysdeps_dir=x86-64
- libgcj_flags="${libgcj_flags} -ffloat-store -fno-omit-frame-pointer"
- libgcj_interpreter=no
- libgcj_cxxflags="-D__NO_MATH_INLINES"
- libgcj_cflags="-D__NO_MATH_INLINES"
+ # For 64-bit we always use SSE registers for arithmetic,
+ # which doesn't have the extra precision problems of the fpu.
+ # But be careful about 32-bit multilibs.
+ case " $CC " in
+ *" -m32 "*)
+ libgcj_flags="${libgcj_flags} -ffloat-store" ;;
+ esac
+ libgcj_flags="${libgcj_flags} -fomit-frame-pointer"
+ libgcj_cxxflags=
+ libgcj_cflags=
+ DIVIDESPEC=-fno-use-divide-subroutine
enable_hash_synchronization_default=yes
slow_pthread_self=yes
+ libgcj_interpreter=yes
;;
alpha*-*)
sysdeps_dir=alpha
libgcj_flags="${libgcj_flags} -mieee"
libgcj_interpreter=yes
enable_hash_synchronization_default=yes
+ IEEESPEC=-mieee
+ ;;
+ hppa*-*)
+ sysdeps_dir=pa
+ libgcj_interpreter=yes
+ enable_hash_synchronization_default=no
;;
powerpc64*-*)
- # libffi not ported.
- with_libffi_default=no
- libgcj_interpreter=no
- libgcj_flags="${libgcj_flags} -mminimal-toc"
- # this may not be correct
sysdeps_dir=powerpc
+ libgcj_interpreter=yes
+ if [ x`$CC -print-multi-os-directory` = x../lib64 ]; then
+ libgcj_flags="${libgcj_flags} -mminimal-toc"
+ fi
enable_hash_synchronization_default=yes
slow_pthread_self=yes
;;
s390*-*)
sysdeps_dir=s390
libgcj_interpreter=yes
+ DIVIDESPEC=-fno-use-divide-subroutine
enable_hash_synchronization_default=yes
;;
sparc*-*)
+ sysdeps_dir=sparc
+ # On Solaris we have defined 'sun' which later conflicts with
+ # namespace usage. So to work this away we use the below undefine.
+ libgcj_flags="${libgcj_flags} -Usun"
libgcj_interpreter=yes
;;
ia64-*)
libgcj_flags="${libgcj_flags} -mieee"
libgcj_interpreter=yes
enable_hash_synchronization_default=yes
+ IEEESPEC=-mieee
;;
esac
sparc*-linux* | \
ia64-* | \
x86_64*-linux* | \
+ hppa*-linux* | \
sh-linux* | sh[34]*-linux*)
can_unwind_signal=yes
+ libgcj_ld_symbolic='-Wl,-Bsymbolic'
+ if test x$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
+ $CC -o conftest conftest.c -lpthread > /dev/null 2>&1 && \
+ ./conftest ./conftest && slow_pthread_self=
+ rm -f conftest conftest.c
+ fi
;;
- *-*-darwin*)
- enable_hash_synchronization_default=no
+ i[34567]86*-kfreebsd*-gnu | x86_64*-kfreebsd*-gnu)
+ libgcj_ld_symbolic='-Wl,-Bsymbolic'
+ slow_pthread_self=
+ ;;
+ i[34567]86-*-solaris2.1[0-9]* )
+ sysdeps_dir=x86-64
+ DIVIDESPEC=-f%{m32:no-}%{!m32:%{!m64:no-}}%{m64:}use-divide-subroutine
+ ;;
+ mips-sgi-irix6* )
+ sysdeps_dir=mips
+ # disable interpreter, no closure support for N32 and N64 ABIs
+ libgcj_interpreter=no
+ ;;
+ mips*-*-linux* )
+ sysdeps_dir=mips
+ can_unwind_signal=yes
+ DIVIDESPEC=-fno-use-divide-subroutine
+ case "${host}" in
+ mipsel*-linux* | mipsisa32el*-linux*)
+ enable_hash_synchronization_default=yes
+ ;;
+ esac
+ ;;
+ powerpc*-*-darwin*)
+ enable_hash_synchronization_default=yes
+ slow_pthread_self=
+ can_unwind_signal=yes
+ ;;
+ i?86-*-darwin*)
+ enable_hash_synchronization_default=yes
slow_pthread_self=
can_unwind_signal=no
;;
*-*-freebsd*)
slow_pthread_self=
;;
+ *-mingw*)
+ libgcj_flags="${libgcj_flags} -fno-omit-frame-pointer"
+ # FIXME: win32_exception_handler( ) in win32.cc does not do the
+ # right stuff yet w.r.t. SEH. Live with the following for now.
+ can_unwind_signal=no
+ CHECKREFSPEC=-fcheck-references
+ DIVIDESPEC=-fuse-divide-subroutine
+ ;;
*-cygwin*)
# The cygwin linker doesn't do 8-byte alignment by default, so
# disable hash synchronization for now.
enable_hash_synchronization_default=no
slow_pthread_self=
;;
+ hppa*-hp-hpux11.*)
+ slow_pthread_self=no
+ can_unwind_signal=yes
+ DIVIDESPEC=-fuse-divide-subroutine
+ ;;
+esac
+
+case "${host}" in
+ *-cygwin* | *-mingw*)
+ fallback_backtrace_h=sysdep/i386/backtrace.h
+ # We need a frame pointer on Windows, so override BACKTRACESPEC
+ BACKTRACESPEC=
+ ;;
+esac
+
+case "${host}" in
+ ia64-*)
+ descriptor_h=sysdep/descriptor-y.h
+ ;;
+
+ hppa*64*-*-hpux*)
+ descriptor_h=sysdep/pa/descriptor-pa64-hpux.h
+ ;;
+
+ hppa*-*-hpux*)
+ descriptor_h=sysdep/pa/descriptor-pa32-hpux.h
+ ;;
+
+ hppa*-*)
+ descriptor_h=sysdep/pa/descriptor.h
+ ;;
+
+ rs6000-* | powerpc*-*)
+ descriptor_h=sysdep/powerpc/descriptor.h
+ ;;
+
+ *)
+ descriptor_h=sysdep/descriptor-n.h
+ ;;
esac
+case "${host}" in
+ *linux*|*-kfreebsd*-gnu|gnu*)
+ use_libgcj_bc=yes
+ ;;
+ *)
+ use_libgcj_bc=no
+ ;;
+esac
+
libgcj_cflags="${libgcj_cflags} ${libgcj_flags}"
libgcj_cxxflags="${libgcj_cxxflags} ${libgcj_flags}"
libgcj_javaflags="${libgcj_javaflags} ${libgcj_flags}"
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