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.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@152041 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 9 insertions, 2 deletions

diff --git a/libjava/sysdep/i386/backtrace.h b/libjava/sysdep/i386/backtrace.h
index 63b32746137..ee793b22a0f 100644
--- a/libjava/sysdep/i386/backtrace.h
+++ b/libjava/sysdep/i386/backtrace.h
@@ -13,7 +13,14 @@ details.  */
 
 #include <java-stack.h>
 
-extern int main (int, char **);
+#ifdef __CYGWIN__
+/* To allow this to link as a DLL.  */
+#define MAIN_FUNC dll_crt0__FP11per_process
+extern "C" int MAIN_FUNC () __declspec(dllimport);
+#else /* !__CYGWIN__ */
+#define MAIN_FUNC main
+extern int MAIN_FUNC (int, char **);
+#endif /* ?__CYGWIN__ */
 
 /* The context used to keep track of our position while unwinding through
    the call stack.  */
@@ -104,7 +111,7 @@ fallback_backtrace (_Unwind_Trace_Fn trace_fn, _Jv_UnwindState *state)
                             const char **, bool))_Jv_RunMain;
       if (ctx.meth_addr == (_Jv_uintptr_t)jv_runmain
           || ctx.meth_addr == (_Jv_uintptr_t)_Jv_ThreadStart
-          || (ctx.meth_addr - (_Jv_uintptr_t)main) < 16)
+          || (ctx.meth_addr - (_Jv_uintptr_t)MAIN_FUNC) < 16)
         break;
     }