X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=libjava%2Fconfigure.host;h=c27f54cc7b28155895303003ec7c30f4b6d028df;hb=775ffa8d8ecfe6a5d7ec56ec22335628a429f764;hp=2f5ea605b24d86718e3768b8ad680e2c0eccc77b;hpb=02fff0c972e317635c44138ca1735654728c5b44;p=pf3gnuchains%2Fgcc-fork.git diff --git a/libjava/configure.host b/libjava/configure.host index 2f5ea605b24..c27f54cc7b2 100644 --- a/libjava/configure.host +++ b/libjava/configure.host @@ -28,6 +28,9 @@ # 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 libgcj_flags= libgcj_cflags= @@ -39,6 +42,7 @@ enable_hash_synchronization_default=no sysdeps_dir=generic slow_pthread_self= can_unwind_signal=no +fallback_backtrace_h=sysdep/generic/backtrace.h case "${target_optspace}:${host}" in yes:*) @@ -62,6 +66,7 @@ echo "$target" DIVIDESPEC=-fuse-divide-subroutine EXCEPTIONSPEC=-fnon-call-exceptions CHECKREFSPEC= +BACKTRACESPEC= # This case statement supports per-CPU defaults. case "${host}" in @@ -87,37 +92,52 @@ case "${host}" in ;; i686-*|i586-*|i486-*|i386-*) sysdeps_dir=i386 - libgcj_flags="${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="${libgcj_flags} -ffloat-store -fomit-frame-pointer" libgcj_interpreter=yes - libgcj_cxxflags="-D__NO_MATH_INLINES" - libgcj_cflags="-D__NO_MATH_INLINES" + libgcj_cxxflags= + libgcj_cflags= DIVIDESPEC=-fno-use-divide-subroutine enable_hash_synchronization_default=yes slow_pthread_self=yes ;; x86_64-*) - CHECKREFSPEC="%{m32:-fcheck-references}" sysdeps_dir=x86-64 - libgcj_flags="${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=yes ;; 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="${libgcj_flags} -mminimal-toc" + fi enable_hash_synchronization_default=yes slow_pthread_self=yes ;; @@ -130,6 +150,7 @@ case "${host}" in s390*-*) sysdeps_dir=s390 libgcj_interpreter=yes + DIVIDESPEC=-fno-use-divide-subroutine enable_hash_synchronization_default=yes ;; sparc*-*) @@ -146,6 +167,7 @@ case "${host}" in libgcj_flags="${libgcj_flags} -mieee" libgcj_interpreter=yes enable_hash_synchronization_default=yes + IEEESPEC=-mieee ;; esac @@ -161,23 +183,135 @@ case "${host}" in sparc*-linux* | \ ia64-* | \ x86_64*-linux* | \ + hppa*-linux* | \ sh-linux* | sh[34]*-linux*) can_unwind_signal=yes + libgcj_ld_symbolic='-Wl,-Bsymbolic' + if test x$slow_pthread_self = xyes \ + && test x$cross_compiling != xyes; then + cat > conftest.c < +#include +#include +#include + +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 + $CC -o conftest conftest.c -lpthread > /dev/null 2>&1 && \ + ./conftest ./conftest && slow_pthread_self= + rm -f conftest conftest.c + fi + ;; + i[34567]86-*-solaris2.1[0-9]* ) + sysdeps_dir=x86-64 + DIVIDESPEC=-f%{m32:no-}%{!m32:%{!m64:no-}}%{m64:}use-divide-subroutine + ;; + mips*-*-linux* ) + sysdeps_dir=mips + can_unwind_signal=yes + DIVIDESPEC=-fno-use-divide-subroutine + case "${host}" in + mipsel*-linux* | mipsisa32el*-linux*) + enable_hash_synchronization_default=yes + ;; + esac ;; - *-*-darwin*) - enable_hash_synchronization_default=no + powerpc*-*-darwin*) + enable_hash_synchronization_default=yes slow_pthread_self= - can_unwind_signal=no + can_unwind_signal=yes ;; *-*-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 "${host}" in + ia64-*) + descriptor_h=sysdep/descriptor-y.h + ;; + + hppa*64*-*-hpux*) + descriptor_h=sysdep/pa/descriptor-pa64-hpux.h + ;; + + hppa*-*-hpux*) + descriptor_h=sysdep/pa/descriptor-pa32-hpux.h + ;; + + hppa*-*) + descriptor_h=sysdep/pa/descriptor.h + ;; + + rs6000-* | powerpc*-*) + descriptor_h=sysdep/powerpc/descriptor.h + ;; + + *) + descriptor_h=sysdep/descriptor-n.h + ;; esac libgcj_cflags="${libgcj_cflags} ${libgcj_flags}"