gcc/java

[pf3gnuchains/gcc-fork.git] / libjava / configure.host

diff --git a/libjava/configure.host b/libjava/configure.host
index 4d4c6e3..759001f 100644 (file)
--- a/libjava/configure.host
+++ b/libjava/configure.host
@@ -28,10 +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.
-#   disable_dladdr      Set to "yes" if dladdr should not be used
-#                       (i.e it is broken).
 #   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=
@@ -43,7 +42,6 @@ enable_hash_synchronization_default=no
 sysdeps_dir=generic
 slow_pthread_self=
 can_unwind_signal=no
-disable_dladdr=
 fallback_backtrace_h=sysdep/generic/backtrace.h
 
 case "${target_optspace}:${host}" in
@@ -68,6 +66,7 @@ echo "$target"
 DIVIDESPEC=-fuse-divide-subroutine
 EXCEPTIONSPEC=-fnon-call-exceptions
 CHECKREFSPEC=
+BACKTRACESPEC=
 
 # This case statement supports per-CPU defaults.
 case "${host}" in
@@ -93,7 +92,10 @@ case "${host}" in
        ;;
   i686-*|i586-*|i486-*|i386-*)
        sysdeps_dir=i386
-       libgcj_flags="${libgcj_flags} -ffloat-store -fno-omit-frame-pointer"
+       # With -fomit-frame-pointer -maccumulate-outgoing-args (implied),
+       # the .text section of libgcj.so is 30k larger, and the .eh_frame
+       # section is 1.4M smaller.
+       libgcj_flags="${libgcj_flags} -ffloat-store -fomit-frame-pointer"
        libgcj_interpreter=yes
        libgcj_cxxflags=
        libgcj_cflags=
@@ -103,7 +105,14 @@ case "${host}" in
        ;;
   x86_64-*)
        sysdeps_dir=x86-64
-       libgcj_flags="${libgcj_flags} -ffloat-store -fno-omit-frame-pointer"
+       # 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="${libgcj_flags} -fomit-frame-pointer"
        libgcj_cxxflags=
        libgcj_cflags=
        DIVIDESPEC=-f%{m32:no-}use-divide-subroutine
@@ -158,6 +167,7 @@ case "${host}" in
        libgcj_flags="${libgcj_flags} -mieee"
        libgcj_interpreter=yes
        enable_hash_synchronization_default=yes
+       IEEESPEC=-mieee
        ;;
 esac
 
@@ -227,6 +237,10 @@ EOF
          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
@@ -234,7 +248,6 @@ EOF
        case "${host}" in
            mipsel*-linux* | mipsisa32el*-linux*)
                enable_hash_synchronization_default=yes
-               disable_dladdr=yes
            ;;
        esac
        ;;
@@ -264,9 +277,28 @@ esac
 case "${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*-*)
+       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} ${libgcj_flags}"
 libgcj_cxxflags="${libgcj_cxxflags} ${libgcj_flags}"