* configure.host (sparc*-sun-solaris2.*): New case.
* include/dwarf2-signal.h (MAKE_THROW_FRAME, SPARC case): Make dummy.
* include/sparc-signal.h: Do not include ucontext.h.
(SIGNAL_HANDLER): Rename symbol.
(FLUSH_REGISTER_WINDOWS): Delete.
(MAKE_THROW_FRAME): Make dummy.
(INIT_SEGV): Adjust for above renaming.
(INIT_FPE): Likewise.
From-SVN: r155092
* configure.host (libgcj_sublib_ltflags): New variable.
* configure.ac (LIBGCJ_SUBLIB_LTFLAGS): AC_SUBST variable for
the above in makefiles.
* configure: Regenerate.
* Makefile.am (libgcj_la_LDFLAGS_NOUNDEF): Rename from this ...
(LIBJAVA_LDFLAGS_NOUNDEF): ... to this, initialise from
LIBGCJ_SUBLIB_LTFLAGS (only when building sublibs), and ...
(libgij_la_LDFLAGS, libgcj_tools_la_LDFLAGS, libjvm_la_LDFLAGS,
lib_gnu_awt_xlib_la_LDFLAGS, libgcj_bc_la_LDFLAGS): ... use it in
all these places to replace hard-coded -no-undefined and -bindir
flags, as well as ...
(libgcj_la_LDFLAGS): ... updating existing reference here.
* Makefile.in: Regenerate.
* include/Makefile.in: Likewise.
* testsuite/Makefile.in: Likewise.
* gcj/Makefile.in: Likewise.
From-SVN: r152347
gcc/ChangeLog
* config/i386/cygming.h (TARGET_USE_JCR_SECTION): Enable.
* config/i386/cygwin.h (LIBGCJ_SONAME): Define.
* config/i386/mingw32.h (LIBGCJ_SONAME): Likewise.
libjava/ChangeLog
* configure.host (enable_libgcj_sublibs_default): New variable,
set for Cygwin and MinGW.
* configure.ac (--enable-libgcj-sublibs): New command-line switch.
(BUILD_SUBLIBS): New AM_CONDITIONAL relating to it.
(libgcj_spec_lgcj_override): New variable, define if building sublibs.
(libgcj_spec_lgcj_bc_override): Likewise for when USE_LIBGCJ_BC.
(LIBGCJ_SPEC_LGCJ): New variable to abstract "-lgcj" from specs.
(LIBGCJ_SPEC_LGCJ_BC): Likewise for when USE_LIBGCJ_BC.
(LIBGCJ_SPEC): Use them.
* configure: Regenerate.
* Makefile.am (LOWER_PACKAGE_FILES_LO): New variable.
(ALL_PACKAGE_SOURCE_FILES_LO): Likewise.
(NONCORE_PACKAGE_SOURCE_FILES_LO): Likewise.
(CORE_PACKAGE_SOURCE_FILES_LO): Likewise.
(toolexeclib_LTLIBRARIES): Add libgcj-noncore.la if building sublibs.
(libgcj_noncore_la_LIBADD_SUBOBJECTS): New variable.
(libgcj_la_LIBADD_SUBOBJECTS): Likewise.
(libgcj_la_LDFLAGS_NOUNDEF): Likewise.
(libgij_la_LDFLAGS): Add DLL-related options.
(libgcj_la_LDFLAGS): Use libgcj_la_LDFLAGS_NOUNDEF and
libgcj_la_LIBADD_SUBOBJECTS.
(libgcj_la_DEPENDENCIES): Adjust to match.
(libgcj_noncore_la_SOURCES, libgcj_noncore_la_LDFLAGS,
libgcj_noncore_la_LIBADD, libgcj_noncore_la_DEPENDENCIES,
libgcj_noncore_la_LINK): New automake variables for sublibrary.
(libgcj_tools_la_LDFLAGS): Add DLL-related flags.
(libgcj_tools_la_LIBADD): New variable.
(libjvm_la_LDFLAGS): Add DLL-related flags.
(lib_gnu_awt_xlib_la_LDFLAGS): Likewise.
(libgcj_bc_la_LDFLAGS): Likewise.
(libgij_la_DEPENDENCIES): Add dependency on libgcj-noncore.la when
building sublibs.
(libgcj_tools_la_DEPENDENCIES, libjvm_la_DEPENDENCIES,
lib_gnu_awt_xlib_la_DEPENDENCIES, jv_convert_DEPENDENCIES,
gcj_dbtool_DEPENDENCIES, gc_analyze_DEPENDENCIES, ecjx_DEPENDENCIES):
Likewise.
* Makefile.in: Regenerate.
* sysdep/i386/backtrace.h (MAIN_FUNC): New #define for main function,
set appropriately for Cygwin on that platform or to "main" elsewhere.
(fallback_backtrace): Use it to limit stack unwind.
libjava/libltdl/ChangeLog:
* ltdl.h (LT_SCOPE): Change conditional to avoid breaking
auto-export during libgcj DLL linking.
* Makefile.am (libltdl_la_LDFLAGS): Remove -bindir switch.
* Makefile.in: Regenerate.
From-SVN: r152041
2009-08-12 Andrew Haley <aph@redhat.com>
* sysdep/arm/locks.h: Use atomic builtins For Linux EABI.
* configure.ac: Add ATOMICSPEC.
* libgcj.spec.in: Likewise.
* configure.host (arm*-linux*): Add -Wno-abi to cxxflags.
(testsuite/libjava.jvmti/jvmti-interp.exp): Likewise.
(testsuite/libjava.jvmti/jvmti.exp): Likewise.
(testsuite/libjava.jni/jni.exp): Likewise.
Set ATOMICSPEC.
Set LDFLAGS to work around libtool feature.
From-SVN: r150702
2009-04-09 Jack Howarth <howarth@bromo.med.uc.edu>
* configure.host: Restore match for darwin9 or later.
* configure.ac: Likewise.
* configure: Regenerate.
From-SVN: r145861
2007-12-08 Andreas Tobler <a.tobler@schweiz.org>
* configure.host: Add bits for i?86-*-darwin9 and x86_64-*-darwin9.
* configure.ac: Add darwin-signal.h to x86_64-*-darwin9 and
i?86-*darwin9.
* configure.in: Regenerate.
* darwin.cc: Add definitions for Darwin specific functions for 64-bit.
(darwin_java_register_dyld_add_image_hook): Use this specific
functions.
* Makefile.am (gij_LDFLAGS): Add extra_gij_ldflags for Darwin9.
* Makefile.in: Regenerate.
* include/Makefile.in: Likewise.
* gcj/Makefile.in: Likewise.
* testsuite/Makefile.in: Likewise.
* testsuite/lib/libjava.exp (libjava_arguments): Add allow_stack_execute
for *-*-darwin9*.
From-SVN: r130709
* configure.host: Enable interpreter for mips64. Enable hash
synchronization for all mips*-*-linux* targets.
* sysdep/mips/locks.h (compare_and_swap, compare_and_swap_release) Use
__sync_bool_compare_and_swap instead of in-line asm.
(release_set, read_barrier, write_barrier): Use __sync_synchronize
instead of in-line asm.
From-SVN: r128438
gcc/java/
2007-09-06 Roman Zippel <zippel@linux-m68k.org>
* boehm.c: Don't use bitmap as gc_descr if pointer is misaligned.
libjava/
2007-09-06 Roman Zippel <zippel@linux-m68k.org>
* sysdep/m68k/locks.h: New file.
* configure.host: Set sysdeps_dir and libgcj_interpreter for m68k.
* configure.ac: Set SIGNAL_HANDLER for m68*-*-linux*.
* configure: Regenerate.
From-SVN: r128191
2007-09-04 Andrew Haley <aph@redhat.com>
PR java/27908
* testsuite/libjava.lang/PR27908.java
({run1,run2,run3}.isRunning): New Method.
(main): Fix race condition.
2007-08-29 Andrew Haley <aph@redhat.com>
* gnu/classpath/natVMStackWalker.cc (VMStackWalker::getCallingClass):
Make sure we're not sibcalled.
(GET_CALLING_CLASS): Define for ARM EABI.
2007-08-22 Andrew Haley <aph@redhat.com>
* configure.host (BACKTRACESPEC): Add arm*-linux*.
2007-08-22 Andrew Haley <aph@redhat.com>
* configure.ac (LIBSTDCXXSPEC): New.
* configure.host: Add arm*-linux* to pthread test.
* configure.ac (LIBGCJTESTSPEC): Add path to libstdc++ for ARM
EABI.
* testsuite/libjava.jni/jni.exp (gcj_jni_compile_c_to_so): Use
-fexceptions for ARM EABI.
* testsuite/lib/libjava.exp (libjava_arguments): Add libgcj-test.spec.
(libjava_invoke): Log the invocation.
2007-08-15 Andrew Haley <aph@redhat.com>
* configure.ac (extra_ldflags): Define.
* Makefile.am: Use extra_ldflags for all executables.
2007-08-14 Andrew Haley <aph@redhat.com>
* sysdep/arm/backtrace.h: Remove stubs for _Unwind_GetIPInfo,
_Unwind_GetRegionStart, and _Unwind_Backtrace.
2007-07-27 Andrew Haley <aph@redhat.com>
* gnu/classpath/natVMStackWalker.cc (GET_CALLING_CLASS): Stub for
ARM EABI.
* exception.cc (get_exception_header_from_ue): New.
(get_ttype_entry): ARM EABI version.
(PERSONALITY_FUNCTION): Add ARM EABI code.
* sysdep/arm/backtrace.h: New file.
* stacktrace.cc (_URC_NORMAL_STOP): New.
* configure.ac (extra_ldflags_libjava): Add libsupc++.la for ARM
EABI.
* configure.host (BACKTRACESPEC): Add arm/backtrace.h.
From-SVN: r128098
2007-07-13 Andrew Haley <aph@redhat.com>
* libgcj.ver: Add __gcj_personality_sj0.
* testsuite/libjava.jvmti/jvmti-interp.exp: Likewise.
* testsuite/libjava.jni/jni.exp: Use -fdollars-in-identifiers.
* testsuite/libjava.jni/cni.exp: Use -fdollars-in-identifiers.
* testsuite/libjava.jvmti/jvmti.exp (gcj_jvmti_compile_cxx_to_o): Likewise.
* gnu/classpath/natVMStackWalker.cc (getCallingClassLoader): Check
klass is non-null.
* java/lang/reflect/natField.cc (getAddr): Call
_Jv_StackTrace::GetCallingClass only if CALLER is non-null.
* java/lang/reflect/natVMProxy.cc (run_proxy): Use
_Jv_getFieldInternal to get field proxyClass.m.
(_Jv_getFieldInternal): New function.
2007-07-11 Andrew Haley <aph@redhat.com>
* configure.host (arm*-linux-gnu): New.
* sysdep/arm/locks.h: New.
From-SVN: r126622
2007-01-27 Andreas Tobler <a.tobler@schweiz.org>
PR libgcj/30513
* configure.host: Add forgottten sysdep_dir to sparc. Add a flag to
libgcj_flags to undefine 'sun' at compile time.
* sysdep/sparc/locks.h (read_barrier): New functions for 32 and 64 bit
Sparc.
(write_barrier): Likewise.
From-SVN: r121239
2006-09-21 Sandro Tolaini <tolaini@libero.it>
* configure.ac: Don't use darwin-signal.h as signal handler for
Darwin/i386.
* configure.host: Enable Darwin/i386 as a supported host, with no
signal unwinding.
From-SVN: r117127
2006-05-20 Andreas Tobler <a.tobler@schweiz.ch>
John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
* configure.ac: Add the POSIX thread libs to the HP-UX PA
configuration. Add signal specification for HP-UX PA.
* configure: Rebuilt.
* configure.host: Add defaults for the HP-UX PA architecture.
Add descriptor files for HP-UX PA 32-bit and 64-bit.
* include/hppa-signal.h: New file.
* include/posix.h: Add shared library suffix for HP-UX.
* sysdep/pa/descriptor-pa32-hpux.h: New file.
* sysdep/pa/descriptor-pa64-hpux.h: Likewise.
Co-Authored-By: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
From-SVN: r113937
* configure.host: Add -fno-omit-frame-pointer to libgcj_flags for
MinGW since EBP is used for backtracking through call frames on this
platform.
From-SVN: r112708
* configure.host (disable_dladdr): Remove variable and its
documentation.
* configure.ac: Do not test for disable_dladdr.
* configure: Regenerate.
From-SVN: r110137
PR target/23602
* toplev.c (process_options): Warn about unsupported combinations
of unwind tables and omit-frame-pointer.
* config/i386/i386.c (override_options): Similarly. Enable
accumulate-outgoing-args if not explicitly disabled.
testsuite/
* g++.dg/eh/omit-frame-pointer.C: Remove i?86 specific options.
* g++.dg/eh/omit-frame-pointer2.C: Likewise.
libjava/
* configure.host (i?86-*): Set -fomit-frame-pointer in libgcj_flags,
but not BACKTRACESPEC.
(x86_64-*): Similarly. Don't set -ffloat-store in 64-bit mode.
From-SVN: r105009
* configure.ac (BACKTRACESPEC): Remove definition, but continue to
AC_SUBST definition from configure.host.
* configure.host: Don't use -fno-omit-frame-pointer. Set BACKTRACESPEC
to -fomit-frame-pointer on 32-bit x86 targets.
From-SVN: r100469
PR libgcj/21692
* sysdep/descriptor-n.h: New file.
* sysdep/descriptor-y.h: New file.
* sysdep/powerpc/descriptor.h: New file.
* configure.host: Set $descriptor_h appropriate for the host.
* configure.ac: Link it.
* configure: Regenerate.
* stacktrace.cc: Include sysdep/descriptor.h.
(_Jv_StackTrace::UpdateNCodeMap): Use UNWRAP_FUNCTION_DESCRIPTOR.
From-SVN: r100173
2005-03-10 Bryce McKinlay <mckinlay@redhat.com>
New Stack Trace infrastructure.
* Makefile.am (libgcj0_convenience_la_SOURCES): Add stacktrace.cc.
(gnu/gcj/runtime/StackTrace.lo): Removed.
(ordinary_java_source_files): Remove obsolete files.
(nat_source_files): Remove obsolete files. Add natVMThrowable.cc.
* configure.host (fallback_backtrace_h): Set backtrace header
for mingw and cygwin targets.
* configure.ac: Make symlink for fallback backtrace headers.
* Makefile.in, configure: Rebuilt.
* defineclass.cc (_Jv_ClassReader::read_one_code_attribute):
Read 'LineNumberTable' attribute.
(_Jv_ClassReader::read_one_class_attribute): Read 'SourceFile'
attribute.
(_Jv_ClassReader::handleCodeAttribute): Initialize method line
table fields.
* exception.cc: Remove unused include.
* interpret.cc (DIRECT_THREADED, insn_slot): Moved to java-interp.h.
(SAVE_PC): New macro. Save current PC in the interpreter frame.
(NULLCHECK, NULLARRAYCHECK): Use SAVE_PC.
(_Jv_InterpMethod::compile): Translate bytecode PC values in the line
table to direct threaded instruction values.
(_Jv_StartOfInterpreter, _Jv_EndOfInterpreter): Removed.
(_Jv_InterpMethod::run): No longer member function. All
callers updated. Remove _Unwind calls. Call SAVE_PC whenever a call
is made or where an instruction could throw.
(_Jv_InterpMethod::get_source_line): New. Look up source line numbers
in line_table.
* prims.cc (catch_segv): Construct exception after MAKE_THROW_FRAME.
(catch_fpe): Likewise.
* stacktrace.cc: New file. Stack trace code now here.
* gnu/gcj/runtime/MethodRef.java:
* gnu/gcj/runtime/NameFinder.java: Mostly reimplemented. Now simply
calls addr2line to look up PC addresses in a given binary or shared
library.
* gnu/gcj/runtime/StackTrace.java, gnu/gcj/runtime/natNameFinder.cc,
gnu/gcj/runtime/natStackTrace.cc: Removed.
* gnu/java/lang/MainThread.java (call_main): Add comment warning that
this function name is specially recognised by the stack trace code
and shouldn't be changed.
* include/java-interp.h (DIRECT_THREADED, insn_slot): Moved here.
(struct _Jv_LineTableEntry, line_table, line_table_len): New.
(_Jv_InterpMethod::run): Update declaration.
(_Jv_StackTrace_): New friend. NameFinder and StackTrace no longer
friends.
(_Jv_InterpFrame): Renamed from _Jv_MethodChain. Add PC field.
* include/java-stack.h: New file. Declarations for stack tracing.
* include/jvm.h (_Jv_Frame_info): Removed.
* java/lang/Class.h: Update friend declarations.
* java/lang/VMClassLoader.java (getSystemClassLoader): Simplify
exception message.
* java/lang/VMThrowable.java (fillInStackTrace): Now native.
(getStackTrace): Now native.
(data): New RawDataManaged field.
* java/lang/natClass.cc: Update includes.
(forName): Use _Jv_StackTrace::GetCallingClass for
calling-classloader check.
(getClassLoader): Likewise.
* java/lang/natRuntime.cc: Update includes.
(_load): Use _Jv_StackTrace::GetFirstNonSystemClassLoader.
* java/lang/natVMSecurityManager.cc: Update includes.
(getClassContext): Use _Jv_StackTrace::GetClassContext.
* java/lang/natVMThrowable.cc: New file. Native methods for
VMThrowable.
* java/lang/reflect/natArray.cc: Update includes.
(newInstance): Use _Jv_StackTrace::GetCallingClass to implement
accessibility check.
* java/lang/reflect/natConstructor.cc: Update includes.
(newInstance): Use _Jv_StackTrace::GetCallingClass to implement
accessibility check.
* java/lang/reflect/natField.cc: Update includes.
(getAddr): Use _Jv_StackTrace::GetCallingClass to implement
accessibility check.
* java/lang/reflect/natMethod.cc: Update includes.
(invoke): Use _Jv_StackTrace::GetCallingClass to implement
accessibility check.
* java/util/natResourceBundle.cc: Update includes.
(getCallingClassLoader): Use _Jv_StackTrace::GetCallingClass.
* java/util/logging/natLogger.cc: Update includes. Use
_Jv_StackTrace::GetCallerInfo to get call-site info.
* sysdep/generic/backtrace.h: Fallback backtrace code. Stub
implementation.
* sysdep/i386/backtrace.h: New. Fallback backtrace code. i386
implementation.
From-SVN: r96253
* src/mips/o32.S (ffi_call_O32, ffi_closure_O32): Use jalr instead
of jal. Use an absolute encoding for the frame information.
* configure.host: Enable the interpreter for mips*-*-linux*.
From-SVN: r91116
gcc/ChangeLog:
* config/s390/s390.md ("udivsi3"): Ensure trap is generated
for division by zero.
("umodsi3"): Likewise.
libjava/ChangeLog:
* configure.host (DIVIDESPEC) [s390*-*-*]: Set to
-fno-use-divide-subroutine.
* include/s390-signal.h: Include <ucontext.h> and <limits.h>.
(HANDLE_FPE): Define.
(SIGNAL_HANDLER): Change third argument to ucontext_t *.
(struct old_s390_kernel_sigaction): Likewise for k_sa_handler.
(HANDLE_DIVIDE_OVERFLOW): Define.
From-SVN: r84683
2004-07-07 Andreas Tobler <a.tobler@schweiz.ch>
* configure.host: Enable hash synchronization on Darwin.
* sysdep/powerpc/locks.h (compare_and_swap): Use '\n' instead of
';', since this is a comment on Darwin.
(compare_and_swap_release): Likewise.
From-SVN: r84214
2004-06-28 Geoffrey Keating <geoffk@apple.com>
Andreas Tobler <a.tobler@schweiz.ch>
PR 15813
* dwarf2out.c (reg_save): Output DW_CFA_same_value when a
register is saved in itself.
(initial_return_save): If the return address is a register,
it's already there, don't bother to mention it in the CFI.
(struct queued_reg_save): Add field saved_reg.
(struct reg_saved_in_data): New.
(regs_saved_in_regs): New.
(num_regs_saved_in_regs): New.
(queue_reg_save): Add extra parameter to specify register saved
in register. Remove duplicate entries from queue. Add comment
for function.
(flush_queued_reg_saves): Handle registers saved in registers.
Update regs_saved_in_regs. Add comment for function.
(clobbers_queued_reg_save): Add comment for function. Allow
for regs_saved_in_regs.
(reg_saved_in): New.
(dwarf2out_frame_debug_expr): Handle saving registers in other
registers.
(dwarf2out_frame_debug): Reset regs_saved_in_regs.
* unwind-dw2.c (execute_cfa_program): Correct handling of
DW_CFA_same_value. Add FIXME comment about incorrect implementation
of DW_CFA_restore_extended.
* config/rs6000/rs6000.c (rs6000_emit_prologue): Let
dwarf2out_frame_debug_expr see instructions that save registers
in other registers or save those other registers in memory.
* unwind-dw2.c (DWARF_FRAME_REGISTERS): Move to unwind-dw2.h.
(_Unwind_FrameState): Likewise.
* unwind-dw2.h: New.
* Makefile.in (LIB2ADDEHDEP): Add unwind-dw2.h.
* config/rs6000/darwin-fallback.c: New file.
* config/rs6000/darwin.h (MD_FALLBACK_FRAME_STATE_FOR): Define.
* config/rs6000/t-darwin (LIB2FUNCS_EXTRA): Add darwin-fallback.o.
Index: gcc/testsuite/ChangeLog
2004-06-26 Geoffrey Keating <geoffk@apple.com>
Andreas Tobler <a.tobler@schweiz.ch>
* gcc.dg/cleanup-10.c: Run on all Linux platforms and powerpc-darwin.
Use SA_RESETHAND rather than SA_ONESHOT. Trap SIGBUS as well
as SIGSEGV.
* gcc.dg/cleanup-11.c: Likewise.
* gcc.dg/cleanup-8.c: Likewise.
* gcc.dg/cleanup-9.c: Likewise.
* gcc.dg/cleanup-5.c: Run on all platforms.
Index: libjava/ChangeLog
2004-06-26 Geoffrey Keating <geoffk@apple.com>
Andreas Tobler <a.tobler@schweiz.ch>
* configure.host (powerpc-*-darwin*): New case, define
can_unwind_signal.
* configure.in (*-*-darwin*): New case, point to darwin-signal.h.
* configure: Regenerate.
* include/darwin-signal.h: New.
Co-Authored-By: Andreas Tobler <a.tobler@schweiz.ch>
From-SVN: r83953
* config/rs6000/linux64.h (MD_FALLBACK_FRAME_STATE_FOR)
[!__powerpc64__]: Corrected to handle kernels with changed ucontext.
* include/powerpc-signal.h: Add #ifndef __powerpc64__ around the
header. For __powerpc64__ provide the default-signal.h definitions
for now.
* include/x86_64-signal.h [!__x86_64__]: Include java-signal-aux.h
instead of the dummy definitions.
* configure.host (x86_64-*): Remove CHECKREFSPEC, add DIVIDESPEC.
(powerpc64*-*): Remove with_libffi_default.
Only add -mminimal-toc for 64-bit compilations.
* configure.in: Use powerpc-signal.h on powerpc64 as well.
(x86_64-*-linux*): Set SIGNAL_HANDLER_AUX.
Link SIGNAL_HANDLER_AUX to include/java-signal-aux.h.
* configure: Rebuilt.
From-SVN: r76437
2003-10-22 David Daney <ddaney@avtrex.com)
* include/mips-signal.h: New file.
* sysdep/dwarf2-backtrace.cc: New file.
* sysdep/mips: New directory.
* sysdep/mips/locks.h: New file.
* Makefile.am(extra_cc_files): New, to allow extra c++ files to be
added to libgcj.
(extra_cc_source_files): Ditto.
* configure.host(disable_dladdr): New shell variable passed to
configure.
(mips*-*-linux*): sysdeps_dir=mips,
can_unwind_signal=yes, disable_dladdr=yes, use -mxgot.
(mipsel*-linux* | mipsisa32el*-linux*): Enable hash synchronization.
* configure.in:(mips*-*-linux*): Use sysdep/dwarf2-backtrace.cc to
generate backtrace, and include/mips-signal.h as SIGNAL_HANDLER
(HAVE_DLADDR): Make it depend on setting of disable_dladdr.
(EXTRA_CC_FILES): New, to support conditional addition of
sysdep/dwarf2-backtrace.cc.
* configure: Regenerated.
* Makefile.in: Regenerated.
* gcj/Makefile.in: Regenerated.
* include/config.h.in: Regenerated.
* include/Makefile.in: Regenerated.
* testsuite/Makefile.in: Regenerated.
From-SVN: r72808
2003-07-26 Ranjit Mathew <rmathew@hotmail.com>
* configure.host: Use -fcheck-references and
-fuse-divide-subroutine for MinGW until we fix
win32_exception_handler( ) in win32.cc w.r.t. Win32
Structured Exception Handling (SEH).
From-SVN: r69843
