#

# 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

# or visit www.oracle.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

LIBJSIG = lib$(JSIG).so

JSIG_G    = $(JSIG)$(G_SUFFIX)

LIBJSIG_G = lib$(JSIG_G).so

LIBJSIG_DEBUGINFO   = lib$(JSIG).debuginfo

LIBJSIG_G_DEBUGINFO = lib$(JSIG_G).debuginfo

JSIGSRCDIR = $(GAMMADIR)/src/os/$(Platform_os_family)/vm

DEST_JSIG           = $(JDK_LIBDIR)/$(LIBJSIG)

DEST_JSIG_DEBUGINFO = $(JDK_LIBDIR)/$(LIBJSIG_DEBUGINFO)

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 $(LDFLAGS_HASH_STYLE)

# DEBUG_BINARIES overrides everything, use full -g debug information

ifeq ($(DEBUG_BINARIES), true)

  JSIG_DEBUG_CFLAGS = -g

endif

$(LIBJSIG): $(JSIGSRCDIR)/jsig.c $(LIBJSIG_MAPFILE)

	@echo Making signal interposition lib...

	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) $(SHARED_FLAG) $(PICFLAG) \

                         $(LFLAGS_JSIG) $(JSIG_DEBUG_CFLAGS) -o $@ $< -ldl

	$(QUIETLY) [ -f $(LIBJSIG_G) ] || { ln -s $@ $(LIBJSIG_G); }

	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJSIG_DEBUGINFO)

	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJSIG_DEBUGINFO) $@

  ifeq ($(STRIP_POLICY),all_strip)

	$(QUIETLY) $(STRIP) $@

  else

    ifeq ($(STRIP_POLICY),min_strip)

	$(QUIETLY) $(STRIP) -g $@

    # implied else here is no stripping at all

    endif

  endif

	[ -f $(LIBJSIG_G_DEBUGINFO) ] || { ln -s $(LIBJSIG_DEBUGINFO) $(LIBJSIG_G_DEBUGINFO); }

endif

install_jsig: $(LIBJSIG)

	@echo "Copying $(LIBJSIG) to $(DEST_JSIG)"

	$(QUIETLY) test -f $(LIBJSIG_DEBUGINFO) && \

	    cp -f $(LIBJSIG_DEBUGINFO) $(DEST_JSIG_DEBUGINFO)

	$(QUIETLY) cp -f $(LIBJSIG) $(DEST_JSIG) && echo "Done"

.PHONY: install_jsig