diff -r 7e7f474103fe -r 5cf9f61d76f4 hotspot/make/linux/makefiles/jsig.make
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/make/linux/makefiles/jsig.make	Wed Apr 09 14:22:48 2008 -0400
@@ -0,0 +1,53 @@
+#
+# Copyright 2005-2006 Sun Microsystems, Inc.  All Rights Reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+# CA 95054 USA or visit www.sun.com if you need additional information or
+# have any questions.
+#  
+#
+
+# Rules to build signal interposition library, used by vm.make
+
+# libjsig[_g].so: signal interposition library
+JSIG = jsig$(G_SUFFIX)
+LIBJSIG = lib$(JSIG).so
+
+JSIGSRCDIR = $(GAMMADIR)/src/os/$(Platform_os_family)/vm
+
+DEST_JSIG  = $(JDK_LIBDIR)/$(LIBJSIG)
+
+LIBJSIG_MAPFILE = $(MAKEFILES_DIR)/mapfile-vers-jsig
+
+# On Linux we really dont want a mapfile, as this library is small 
+# and preloaded using LD_PRELOAD, making functions private will 
+# cause problems with interposing. See CR: 6466665
+# LFLAGS_JSIG += $(MAPFLAG:FILENAME=$(LIBJSIG_MAPFILE))
+
+LFLAGS_JSIG += -D_GNU_SOURCE -D_REENTRANT
+
+$(LIBJSIG): $(JSIGSRCDIR)/jsig.c $(LIBJSIG_MAPFILE)
+	@echo Making signal interposition lib...
+	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) $(SHARED_FLAG) $(PICFLAG) \
+                         $(LFLAGS_JSIG) -o $@ $< -ldl
+
+install_jsig: $(LIBJSIG)
+	@echo "Copying $(LIBJSIG) to $(DEST_JSIG)"
+	$(QUIETLY) cp -f $(LIBJSIG) $(DEST_JSIG) && echo "Done"
+
+.PHONY: install_jsig