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Merge changes from current as of 20200406

# $NetBSD: Makefile.efiboot,v 1.7.2.3 2020/04/08 14:09:02 martin Exp $

S=		${.CURDIR}/../../..

NOMAN=		# defined
NOPIE=		# defined
NOLIBCSANITIZER=# defined
NOSANITIZER=	# defined
NORELRO=	# defined
PROG?=		boot.efi
NEWVERSWHAT?=	"efiboot"

EFIDIR= ${S}/external/bsd/gnu-efi/dist
GNUEFIARCH?= ${MACHINE_CPU}
CPPFLAGS+= -I${EFIDIR}/inc -I${EFIDIR}/inc/${GNUEFIARCH}
CPPFLAGS+= -I${EFIDIR}/inc/protocol

LDSCRIPT?= ${EFIDIR}/gnuefi/elf_${GNUEFIARCH}_efi.lds

AFLAGS.start.S= ${${ACTIVE_CC} == "clang":?-no-integrated-as:}

.PATH: ${EFIDIR}/gnuefi
SOURCES=	crt0-efi-${GNUEFIARCH}.S reloc_${GNUEFIARCH}.c
SOURCES+=	boot.c conf.c console.c dev_net.c devopen.c exec.c panic.c prompt.c
SOURCES+=	efiboot.c efichar.c efidev.c efienv.c efigetsecs.c efifdt.c efifile.c efiblock.c efinet.c efipxe.c efiacpi.c smbios.c

.PATH: ${S}/external/bsd/libfdt/dist
CPPFLAGS+=	-I${S}/external/bsd/libfdt/dist
SOURCES+=	fdt.c fdt_addresses.c fdt_empty_tree.c fdt_overlay.c
SOURCES+=	fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c fdt_wip.c

SRCS= ${SOURCES} ${EXTRA_SOURCES}

.include <bsd.init.mk>

STRIPFLAG=	# nothing

LIBCRT0=	# nothing
LIBCRTI=	# nothing
LIBCRTBEGIN=	# nothing
LIBCRTEND=	# nothing
LIBC=		# nothing

BINDIR=/usr/mdec
BINMODE=444

.PATH:	${.CURDIR} ${.CURDIR}/..
.PATH:	${.CURDIR}/../../lib

LDFLAGS+= -nostdlib -T${LDSCRIPT} -Bsymbolic -shared
CPPFLAGS+= -I$S -I${.CURDIR} -I${.CURDIR}/../common -I$S/lib/libsa
CPPFLAGS+= -I${.OBJDIR}
CPPFLAGS+= -I${.CURDIR}/../../lib
CPPFLAGS+= -I${S}/../common/include

COPTS+=	-fpic -g -O2
COPTS+=	-fshort-wchar -fno-strict-aliasing
COPTS+=	-ffreestanding -fno-stack-protector
LDFLAGS+= --defsym=EFI_SUBSYSTEM=0xa


COPTS+= ${${ACTIVE_CC} == "gcc":? -Wno-error=unused-but-set-variable :}
CPPFLAGS+= -nostdinc -D_STANDALONE
CPPFLAGS+= -DEFIBOOT
CPPFLAGS+= -DPROGRESS_FN=efi_progress

CPPFLAGS+= -Wall -Wmissing-prototypes
CPPFLAGS+= -Wno-pointer-sign

CPPFLAGS+= -DHEAP_VARIABLE
#CPPFLAGS+= -DSUPPORT_CD9660
CPPFLAGS+= -D"devb2cdb(bno)=(bno)"
CPPFLAGS+= -DSUPPORT_DOSFS
#CPPFLAGS+= -DSUPPORT_EXT2FS
CPPFLAGS+= -DSUPPORT_BOOTP
CPPFLAGS+= -DSUPPORT_DHCP
#CPPFLAGS+= -DSUPPORT_NFS
CPPFLAGS+= -DSUPPORT_TFTP
CPPFLAGS+= -DLIBSA_ENABLE_LS_OP

#CPPFLAGS+= -DEFIBOOT_DEBUG
#CPPFLAGS+= -DARP_DEBUG
#CPPFLAGS+= -DBOOTP_DEBUG
#CPPFLAGS+= -DNET_DEBUG
#CPPFLAGS+= -DNETIF_DEBUG
#CPPFLAGS+= -DNFS_DEBUG
#CPPFLAGS+= -DRARP_DEBUG
#CPPFLAGS+= -DRPC_DEBUG

# Follow the suit of Makefile.kern.inc; needed for the lfs64 union
# accessors -- they don't actually dereference the resulting pointer,
# just use it for type-checking.
CWARNFLAGS.clang+=	-Wno-error=address-of-packed-member

SAMISCCPPFLAGS+= -DLIBSA_PRINTF_LONGLONG_SUPPORT
SAMISCCPPFLAGS+= -DLIBSA_PRINTF_WIDTH_SUPPORT
SAMISCCPPFLAGS+= -D"cdb2devb(bno)=(bno)"

### find out what to use for libsa
SA_AS= library
SAMISCMAKEFLAGS+="SA_USE_LOADFILE=yes"
SAMISCMAKEFLAGS+="SA_USE_CREAD=yes"
SAMISCMAKEFLAGS+="SA_INCLUDE_NET=yes"
SAMISCMAKEFLAGS+="SA_ENABLE_LS_OP=yes"
.include "${S}/lib/libsa/Makefile.inc"
LIBSA= ${SALIB}

### find out what to use for libkern
KERN_AS= library
LIBKERN_ARCH?= ${MACHINE_ARCH}
KERNMISCMAKEFLAGS+="LIBKERN_ARCH=${LIBKERN_ARCH}"
.include "${S}/lib/libkern/Makefile.inc"
LIBKERN= ${KERNLIB}

### find out what to use for libz
Z_AS= library
.include "${S}/lib/libz/Makefile.inc"
LIBZ= ${ZLIB}

### find out what to use for libgnuefi
GNUEFI_AS= library
LIBGNUEFI_ARCH?= ${MACHINE_ARCH}
GNUEFIMISCMAKEFLAGS+="LIBGNUEFI_ARCH=${LIBGNUEFI_ARCH}"
GNUEFIMISCCPPFLAGS+= -I${EFIDIR}/lib
.include "${S}/lib/libgnuefi/Makefile.inc"
LIBGNUEFI= ${GNUEFILIB}

cleandir distclean: .WAIT cleanlibdir

cleanlibdir:
	-rm -rf lib

LIBLIST= ${LIBGNUEFI} ${LIBSA} ${LIBZ} ${LIBKERN} ${LIBSA}

VERSIONMACHINE=evbarm
.include "${S}/conf/newvers_stand.mk"

CLEANFILES+=	${PROG}.so ${PROG}.tmp

${PROG}: ${PROG}.so
	${OBJCOPY} -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel \
	    -j .rela -j .rel.* -j .rela.* -j .rel* -j .rela* \
	    -j .reloc -O binary ${PROG}.so ${.TARGET}

.include <bsd.prog.mk>

${PROG}.so: ${OBJS} ${LIBLIST} ${LDSCRIPT} ${.CURDIR}/../Makefile.efiboot
	${LD} ${LDFLAGS} -o ${.TARGET}.tmp ${OBJS} ${LIBLIST}
	@if ${OBJDUMP} -t ${.TARGET}.tmp | grep 'UND'; then		\
	    (echo Undefined symbols; false);				\
	fi
	rm -f ${.TARGET}
	mv ${.TARGET}.tmp ${.TARGET}

KLINK_MACHINE?=	${MACHINE}
.include <bsd.klinks.mk>