Java example source code file (jsig.make)

This example Java source code file (jsig.make) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

dest_jsig, general, gnu, jdk_libdir, lflags_jsig, libjsig, libjsig_debuginfo, libjsig_diz, libjsig_mapfile, license, objcopy, public, quietly, this

The jsig.make Java example source code

#
# Copyright (c) 2005, 2012, Oracle and/or its affiliates. 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 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.so: signal interposition library
JSIG      = jsig
LIBJSIG   = lib$(JSIG).so

LIBJSIG_DEBUGINFO   = lib$(JSIG).debuginfo
LIBJSIG_DIZ         = lib$(JSIG).diz

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

DEST_JSIG           = $(JDK_LIBDIR)/$(LIBJSIG)
DEST_JSIG_DEBUGINFO = $(JDK_LIBDIR)/$(LIBJSIG_DEBUGINFO)
DEST_JSIG_DIZ       = $(JDK_LIBDIR)/$(LIBJSIG_DIZ)

LIBJSIG_MAPFILE = $(MAKEFILES_DIR)/mapfile-vers-jsig

LFLAGS_JSIG += $(MAPFLAG:FILENAME=$(LIBJSIG_MAPFILE))

ifdef USE_GCC
LFLAGS_JSIG += -D_REENTRANT
else
LFLAGS_JSIG += -mt -xnolib
endif

$(LIBJSIG): $(ADD_GNU_DEBUGLINK) $(FIX_EMPTY_SEC_HDR_FLAGS) $(JSIGSRCDIR)/jsig.c $(LIBJSIG_MAPFILE)
	@echo Making signal interposition lib...
	$(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) $(SHARED_FLAG) $(PICFLAG) \
                         $(LFLAGS_JSIG) -o $@ $(JSIGSRCDIR)/jsig.c -ldl
ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
# gobjcopy crashes on "empty" section headers with the SHF_ALLOC flag set.
# Clear the SHF_ALLOC flag (if set) from empty section headers.
# An empty section header has sh_addr == 0 and sh_size == 0.
# This problem has only been seen on Solaris X64, but we call this tool
# on all Solaris builds just in case.
	$(QUIETLY) $(FIX_EMPTY_SEC_HDR_FLAGS) $@
	$(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJSIG_DEBUGINFO)
# $(OBJCOPY) --add-gnu-debuglink=... corrupts SUNW_* sections.
# Use $(ADD_GNU_DEBUGLINK) until a fixed $(OBJCOPY) is available.
#	$(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJSIG_DEBUGINFO) $@
	$(QUIETLY) $(ADD_GNU_DEBUGLINK) $(LIBJSIG_DEBUGINFO) $@
  ifeq ($(STRIP_POLICY),all_strip)
	$(QUIETLY) $(STRIP) $@
  else
    ifeq ($(STRIP_POLICY),min_strip)
	$(QUIETLY) $(STRIP) -x $@
    # implied else here is no stripping at all
    endif
  endif
  ifeq ($(ZIP_DEBUGINFO_FILES),1)
	$(ZIPEXE) -q -y $(LIBJSIG_DIZ) $(LIBJSIG_DEBUGINFO)
	$(RM) $(LIBJSIG_DEBUGINFO)
  endif
endif

install_jsig: $(LIBJSIG)
	@echo "Copying $(LIBJSIG) to $(DEST_JSIG)"
	$(QUIETLY) test -f $(LIBJSIG_DEBUGINFO) && \
	    cp -f $(LIBJSIG_DEBUGINFO) $(DEST_JSIG_DEBUGINFO)
	$(QUIETLY) test -f $(LIBJSIG_DIZ) && \
	    cp -f $(LIBJSIG_DIZ) $(DEST_JSIG_DIZ)
	$(QUIETLY) cp -f $(LIBJSIG) $(DEST_JSIG) && echo "Done"

.PHONY: install_jsig