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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

#

# This code is free software; you can redistribute it and/or modify it

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# published by the Free Software Foundation.

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# 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

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#

# 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

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

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); }

install_jsig: $(LIBJSIG)

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

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

.PHONY: install_jsig