Enable Java on Cygwin-64

Currently it is not possible to build GCC's libjava support on Cygwin-64.

This patch fixes the current build-problems on Cygwin-64 and the most
fundamental bugs on that platform.

Note you must still add --enable-threads=posix to successfully build the
java language support.


boehm-gc/ChangeLog:

2014-05-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Fix current cygwin-64 build problems.
        * include/gc_config_macros.h (GC_PTHREADS): Use __CYGWIN__ instead
        of __CYGWIN32__ here.
        * win32_threads.c (GC_push_all_stacks): Push all X86_64 registers.
        (GC_get_thread_stack_base): Get the stack base for X86_64.

libffi/ChangeLog:

2014-05-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Fix current cygwin-64 build problems.
        * src/java_raw_api.c: Remove if !defined(FFI_NO_RAW_API).
        * src/x86/ffi.c: Add if defined(__CYGWIN__).
        * src/x86/win64.S (ffi_closure_win64, ffi_call_win64): Added
        handling for FFI_TYPE_UINT64, FFI_TYPE_POINTER and FFI_TYPE_INT.
        Added SEH information.  Fixed formatting.

libgcc/ChangeLog:

2014-05-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * unwind-seh.c (_Unwind_Backtrace): Uncommented, finished
        implementation.

libjava/ChangeLog:

2014-05-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Fix current cygwin-64 build problems.
        * configure.host: Added handling for x86_64-*-cygwin/mingw.
        * boehm.cc (_Jv_GCAttachThread, _Jv_GCDetachThread): Don't compile if
        GC_WIN32_THREADS is defined.
        * java/lang/natClass.cc (_Jv_InterfaceAssignableFrom): Rename interface
        to source_interface.

libjava/classpath/ChangeLog:

2014-05-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        Fix current cygwin-64 build problems.
        * native/fdlibm/mprec.c (_REENT_CHECK_MP, _REENT_MP_FREELIST,
        _REENT_MP_P5S, __ULong, __Long): Undefine previous definitions.

From-SVN: r210386

6 files changed, 36 insertions, 7 deletions

diff --git a/libjava/ChangeLog b/libjava/ChangeLog
index 661bb7a..0bedfed 100644
--- a/libjava/ChangeLog
+++ b/libjava/ChangeLog
@@ -1,3 +1,12 @@
+2014-05-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	Fix current cygwin-64 build problems.
+	* configure.host: Added handling for x86_64-*-cygwin/mingw.	
+	* boehm.cc (_Jv_GCAttachThread, _Jv_GCDetachThread): Don't compile if
+	GC_WIN32_THREADS is defined.
+	* java/lang/natClass.cc (_Jv_InterfaceAssignableFrom): Rename interface
+	to source_interface.
+
 2014-04-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* configure.ac (THREADLIBS, THREADSPEC): Remove *-*-solaris2.9
diff --git a/libjava/boehm.cc b/libjava/boehm.cc
index 855d23c..043fd00 100644
--- a/libjava/boehm.cc
+++ b/libjava/boehm.cc
@@ -747,7 +747,8 @@ _Jv_GCAttachThread ()
   // The registration interface is only defined on posixy systems and
   // only actually works if pthread_getattr_np is defined.
   // FIXME: until gc7 it is simpler to disable this on solaris.
-#if defined(HAVE_PTHREAD_GETATTR_NP) && !defined(GC_SOLARIS_THREADS)
+#if defined(HAVE_PTHREAD_GETATTR_NP) && !defined(GC_SOLARIS_THREADS) \
+    && !defined(GC_WIN32_THREADS)
   GC_register_my_thread ();
 #endif
 }
@@ -755,7 +756,8 @@ _Jv_GCAttachThread ()
 void
 _Jv_GCDetachThread ()
 {
-#if defined(HAVE_PTHREAD_GETATTR_NP) && !defined(GC_SOLARIS_THREADS)
+#if defined(HAVE_PTHREAD_GETATTR_NP) && !defined(GC_SOLARIS_THREADS) \
+    && !defined(GC_WIN32_THREADS)
   GC_unregister_my_thread ();
 #endif
 }
diff --git a/libjava/classpath/ChangeLog b/libjava/classpath/ChangeLog
index 4d9f1a6..4389fc0 100644
--- a/libjava/classpath/ChangeLog
+++ b/libjava/classpath/ChangeLog
@@ -1,3 +1,9 @@
+2014-05-13  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	Fix current cygwin-64 build problems.
+	* native/fdlibm/mprec.c (_REENT_CHECK_MP, _REENT_MP_FREELIST,
+	_REENT_MP_P5S, __ULong, __Long): Undefine previous definitions.
+
 2013-09-20  Alan Modra  <amodra@gmail.com>
 
 	* configure: Regenerate.
diff --git a/libjava/classpath/native/fdlibm/mprec.c b/libjava/classpath/native/fdlibm/mprec.c
index 8a7cdc0..460c3010 100644
--- a/libjava/classpath/native/fdlibm/mprec.c
+++ b/libjava/classpath/native/fdlibm/mprec.c
@@ -93,12 +93,17 @@
 #define _reent _Jv_reent
 #define _Bigint _Jv_Bigint
 
+#undef  _REENT_CHECK_MP
 #define _REENT_CHECK_MP(x)
+#undef  _REENT_MP_FREELIST
 #define _REENT_MP_FREELIST(x) ((x)->_freelist)
+#undef  _REENT_MP_P5S
 #define _REENT_MP_P5S(x) ((x)->_p5s)
 
-typedef unsigned long __ULong;
-typedef long __Long;
+#undef  __ULong
+#define __ULong unsigned long
+#undef  __Long
+#define __Long long
 
 static void *
 mprec_calloc (void *ignore, size_t x1, size_t x2)
diff --git a/libjava/configure.host b/libjava/configure.host
index f2d1bb5..c6f359c 100644
--- a/libjava/configure.host
+++ b/libjava/configure.host
@@ -365,6 +365,13 @@ EOF
 esac
 
 case "${host}" in
+  x86_64-*-cygwin* | x86_64-*-mingw*)
+	# Win32 DLLs are limited to 64k exported symbols each.
+	enable_libgcj_sublibs_default=yes
+	libgcj_sublib_ltflags='$(lt_host_flags) \
+	    -Wl,-u,_ZN3org4ietf4jgss10GSSManagerC1Ev,-L..,-lgcj-noncore-dummy'
+	libgcj_sublib_core_extra_deps=libgcj-noncore-dummy.dll.a
+  ;;
   *-cygwin* | *-mingw*)
 	fallback_backtrace_h=sysdep/i386/backtrace.h  
 	# We need a frame pointer on Windows, so override BACKTRACESPEC
diff --git a/libjava/java/lang/natClass.cc b/libjava/java/lang/natClass.cc
index b5ad91f..00766d0 100644
--- a/libjava/java/lang/natClass.cc
+++ b/libjava/java/lang/natClass.cc
@@ -1870,9 +1870,9 @@ _Jv_InterfaceAssignableFrom (jclass source, jclass iface)
 {
   for (int i = 0; i < source->interface_count; i++)
     {
-      jclass interface = source->interfaces[i];
-      if (iface == interface
-          || _Jv_InterfaceAssignableFrom (interface, iface))
+      jclass source_interface = source->interfaces[i];
+      if (iface == source_interface
+          || _Jv_InterfaceAssignableFrom (source_interface, iface))
         return true;      
     }