#
#   IP Engineering Rescue Disk
#   Copyright (C) 2017 David M. Syzdek <david@syzdek.net>.
#
#   @SYZDEK_BSD_LICENSE_START@
#
#   Redistribution and use in source and binary forms, with or without
#   modification, are permitted provided that the following conditions are
#   met:
#
#      * Redistributions of source code must retain the above copyright
#        notice, this list of conditions and the following disclaimer.
#      * Redistributions in binary form must reproduce the above copyright
#        notice, this list of conditions and the following disclaimer in the
#        documentation and/or other materials provided with the distribution.
#      * Neither the name of David M. Syzdek nor the
#        names of its contributors may be used to endorse or promote products
#        derived from this software without specific prior written permission.
#
#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
#   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
#   THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
#   PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID M. SYZDEK BE LIABLE FOR
#   ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
#   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
#   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
#   CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
#   LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
#   OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#   SUCH DAMAGE.
#
#   @SYZDEK_BSD_LICENSE_END@
#


SYSLINUX_VERSION	?= 6.04-pre1
MIRROR_SYSLINUX		?= https://www.kernel.org/pub/linux/utils/boot/syslinux/Testing/6.04/syslinux-6.04-pre1.tar.xz
CLEANFILES		+= tmp/src/syslinux-$(SYSLINUX_VERSION)
SYSLINUX_CONFIGS	= \
			  EFI/BOOT/pxelia32.cfg \
			  EFI/BOOT/pxelx64.cfg \
			  EFI/BOOT/syslia32.cfg \
			  EFI/BOOT/syslx64.cfg \
			  syslinux/isolinux.cfg \
			  syslinux/pxelinux.cfg \
			  syslinux/syslinux.cfg
SYSLINUX_INCLUDES	= \
			  var/config/isolinux.inc \
			  var/config/pxelinux.inc \
			  var/config/pxelia32.inc \
			  var/config/pxelx64.inc \
			  var/config/syslinux.inc \
			  var/config/syslia32.inc \
			  var/config/syslx64.inc
SYSLINUX_BINARIES	= \
			  EFI/BOOT/BOOTX64.EFI \
			  EFI/BOOT/BOOTX64.EFI.0 \
			  EFI/BOOT/BOOTIA32.EFI \
			  EFI/BOOT/BOOTIA32.EFI.0 \
			  EFI/BOOT/ldlinux.e32 \
			  EFI/BOOT/ldlinux.e64 \
			  ldlinux.e32 \
			  ldlinux.e64

tmp/src/syslinux-$(SYSLINUX_VERSION)/.iperd-extracted:
	./src/scripts/download.sh \
	   tmp/src/syslinux-$(SYSLINUX_VERSION).tar.xz \
	   $(MIRROR_SYSLINUX)
	cd tmp/src && tar -xf syslinux-$(SYSLINUX_VERSION).tar.xz
	touch $(@)


syslinux/iperd.dep: tmp/src/syslinux-$(SYSLINUX_VERSION)/.iperd-extracted
	rm -Rf syslinux
	rm -Rf EFI
	cd tmp/src/syslinux-$(SYSLINUX_VERSION); \
	   make -s install INSTALLROOT="$(PWD)/tmp/syslinux" \
	   || { rm -Rf tmp/src/syslinux-$(SYSLINUX_VERSION); exit 1; }
	rsync -ra "$(PWD)/tmp/syslinux/usr/share/syslinux/" syslinux
	rsync -ra "$(PWD)/tmp/syslinux/usr/bin/"            syslinux/bin
	rsync -ra "$(PWD)/tmp/syslinux/sbin/"               syslinux/sbin
	cp /usr/share/hwdata/pci.ids                        syslinux/
	cp /lib/modules/$$(uname -r)/modules.alias          syslinux/modules.als
	cp syslinux/isolinux.bin                            syslinux/isolinux.bin.mod
	@touch "$(@)"


EFI/BOOT/BOOTX64.EFI EFI/BOOT/BOOTX64.EFI.0: syslinux/iperd.dep
	@mkdir -p $$(dirname $(@))
	cp syslinux/efi64/syslinux.efi $(@)
	@touch $(@)


EFI/BOOT/BOOTIA32.EFI EFI/BOOT/BOOTIA32.EFI.0: syslinux/iperd.dep
	@mkdir -p $$(dirname $(@))
	cp syslinux/efi32/syslinux.efi $(@)
	@touch $(@)


EFI/BOOT/ldlinux.e32 ldlinux.e32: syslinux/iperd.dep
	@mkdir -p $$(dirname $(@))
	cp syslinux/efi32/ldlinux.e32 $(@)
	@touch $(@)


EFI/BOOT/ldlinux.e64 ldlinux.e64: syslinux/iperd.dep
	@mkdir -p $$(dirname $(@))
	cp syslinux/efi64/ldlinux.e64 $(@)
	@touch $(@)


do_syslinux_cfg = \
        mkdir -p $$(dirname $(@)); \
        rm -f "$(@)"; \
        rm -f "$${SYSLINUX_INC_FILE}"; \
	echo 'bash ./src/scripts/genfiles.sh $${SYSLINUX_INC_FILE}'; \
	bash ./src/scripts/genfiles.sh "$${SYSLINUX_INC_FILE}"; \
        echo 'do_subst $$(SYSLINDIR)/common.cfg $${SYSLINUX_INC_FILE} > $(@)'; \
        $(do_subst) \
           $(SYSLINDIR)/common.cfg \
           $${SYSLINUX_INC_FILE} \
           | sed \
              -e "s,[@]SYSLINUX_FLAVOR[@],$${SYSLINUX_FLAVOR},g" \
              -e "s,[@]SYSLINUX_PATH[@],$${SYSLINUX_PATH},g" \
           > "$(@)"; \
        touch "$(@)"


EFI/BOOT/pxelia32.cfg: Makefile.config $(SYSLINUX_INC_DEPS) $(SYSLINDIR)/common.cfg
	@SYSLINUX_INC_FILE="var/config/pxelia32.inc"; \
	   SYSLINUX_FLAVOR="pxe/UEFI IA32"; \
	   SYSLINUX_PATH="/syslinux/efi32/"; \
           $(do_syslinux_cfg);


EFI/BOOT/pxelx64.cfg: Makefile.config $(SYSLINUX_INC_DEPS) $(SYSLINDIR)/common.cfg
	@SYSLINUX_INC_FILE="var/config/pxelx64.inc"; \
	   SYSLINUX_FLAVOR="pxe/UEFI X64"; \
	   SYSLINUX_PATH="/syslinux/efi64/"; \
           $(do_syslinux_cfg);


EFI/BOOT/syslia32.cfg: Makefile.config $(SYSLINUX_INC_DEPS) $(SYSLINDIR)/common.cfg
	@SYSLINUX_INC_FILE="var/config/syslia32.inc"; \
	   SYSLINUX_FLAVOR="sys/UEFI IA32"; \
	   SYSLINUX_PATH="/syslinux/efi32/"; \
           $(do_syslinux_cfg);


EFI/BOOT/syslx64.cfg: Makefile.config $(SYSLINUX_INC_DEPS) $(SYSLINDIR)/common.cfg
	@SYSLINUX_INC_FILE="var/config/syslx64.inc"; \
	   SYSLINUX_FLAVOR="sys/UEFI X64"; \
	   SYSLINUX_PATH="/syslinux/efi64/"; \
           $(do_syslinux_cfg);


syslinux/isolinux.cfg: Makefile.config $(SYSLINUX_INC_DEPS) $(SYSLINDIR)/common.cfg
	@SYSLINUX_INC_FILE="var/config/isolinux.inc"; \
	   SYSLINUX_FLAVOR="iso/BIOS"; \
	   SYSLINUX_PATH="/syslinux/"; \
           $(do_syslinux_cfg);


syslinux/pxelinux.cfg: Makefile.config $(SYSLINUX_INC_DEPS) $(SYSLINDIR)/common.cfg
	@SYSLINUX_INC_FILE="var/config/pxelinux.inc"; \
	   SYSLINUX_FLAVOR="pxe/BIOS"; \
	   SYSLINUX_PATH="/syslinux/"; \
           $(do_syslinux_cfg);


syslinux/syslinux.cfg: Makefile.config $(SYSLINUX_INC_DEPS) $(SYSLINDIR)/common.cfg
	@SYSLINUX_INC_FILE="var/config/syslinux.inc"; \
	   SYSLINUX_FLAVOR="sys/BIOS"; \
	   SYSLINUX_PATH="/syslinux/"; \
           $(do_syslinux_cfg);


# end of makefile