# $NetBSD: Makefile.bootxx,v 1.53 2023/06/03 08:52:56 lukem Exp $

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

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

NOPIE=
NOMAN=
NOLIBCSANITIZER=
NOSANITIZER=
PROG?= bootxx_${FS}
BINDIR= /usr/mdec
BINMODE= 0444

PRIMARY_LOAD_ADDRESS=0x1000
SECONDARY_LOAD_ADDRESS=0x10000

# We ought (need?) to fit into track 0 of a 1.2M floppy.
# This restricts us to 15 sectors (including pbr and label)
BOOTXX_SECTORS?=15
BOOTXX_MAXSIZE?= $$(( ${BOOTXX_SECTORS} * 512 ))

SRCS= pbr.S label.S bootxx.S boot1.c

.include <bsd.init.mk>

STRIPFLAG=	# nothing

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

BINDIR=/usr/mdec
BINMODE=444

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

LDFLAGS+= -nostdlib -Wl,-N -Wl,-e,start
CPPFLAGS+= -DBOOTXX
# CPPFLAGS+= -D__daddr_t=int32_t
CPPFLAGS+= -I ${.CURDIR}/../../lib -I ${.OBJDIR}
CPPFLAGS+= -DBOOTXX_SECTORS=${BOOTXX_SECTORS}
CPPFLAGS+= -DPRIMARY_LOAD_ADDRESS=${PRIMARY_LOAD_ADDRESS}
CPPFLAGS+= -DSECONDARY_LOAD_ADDRESS=${SECONDARY_LOAD_ADDRESS}
CPPFLAGS+= -DXXfs_open=${FS}_open
CPPFLAGS+= -DXXfs_close=${FS}_close
CPPFLAGS+= -DXXfs_read=${FS}_read
CPPFLAGS+= -DXXfs_stat=${FS}_stat
CPPFLAGS+= -DFS=${FS}
# CPPFLAGS+= -DBOOT_MSG_COM0

# Make sure we override any optimization options specified by the user
.include "${.PARSEDIR}/../Makefile.inc"
COPTS=	${OPT_SIZE.${ACTIVE_CC}}
DBG=

CPPFLAGS+= -DNO_LBA_CHECK

.if ${MACHINE_ARCH} == "x86_64"
LDFLAGS+=  -Wl,-m,elf_i386
AFLAGS+=   -m32
CPUFLAGS=  -m32
LIBKERN_ARCH=i386
KERNMISCMAKEFLAGS="LIBKERN_ARCH=i386"
.else
CPPFLAGS+= -DEPIA_HACK
CPUFLAGS=  -march=i386 -mtune=i386
.endif

CFLAGS+= -Wall -Wmissing-prototypes -Wstrict-prototypes
CPPFLAGS+= -nostdinc -D_STANDALONE
CPPFLAGS+= -I$S

CPPFLAGS+= -DLIBSA_SINGLE_FILESYSTEM=xxfs \
		-DLIBSA_NO_TWIDDLE \
		-DLIBSA_NO_FD_CHECKING \
		-DLIBSA_NO_RAW_ACCESS \
		-DLIBSA_NO_FS_WRITE \
		-DLIBSA_NO_FS_SEEK \
		-DLIBSA_SINGLE_DEVICE=blkdev \
		-DLIBKERN_OPTIMISE_SPACE \
		-D"blkdevioctl(x,y,z)=EINVAL" \
		-D"blkdevclose(f)=0" \
		-D"devopen(f,n,fl)=(*(fl)=(void *)n,0)" \
		-DLIBSA_NO_DISKLABEL_MSGS

# -DLIBSA_FS_SINGLECOMPONENT 

# CPPFLAGS+= -DBOOTXX_RAID1_SUPPORT

I386_STAND_DIR?= $S/arch/i386/stand

### find out what to use for libi386
I386DIR= ${I386_STAND_DIR}/lib
.include "${I386DIR}/Makefile.inc"
LIBI386= ${I386LIB}

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

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

LDSCRIPT ?= $S/arch/i386/conf/stand.ldscript

cleandir distclean: .WAIT cleanlibdir

cleanlibdir:
	-rm -rf lib

LIBLIST= ${LIBI386} ${LIBSA} ${LIBKERN} ${LIBI386} ${LIBSA}

CLEANFILES+= ${PROG}.sym ${PROG}.map

${PROG}: ${OBJS} ${LIBLIST} ${LDSCRIPT}
	${_MKTARGET_LINK}
	${CC} -o ${PROG}.sym ${LDFLAGS} -Wl,-Ttext,${PRIMARY_LOAD_ADDRESS} \
		-T ${LDSCRIPT} -Wl,-Map,${PROG}.map -Wl,-cref ${OBJS} ${LIBLIST}
	${OBJCOPY} -O binary ${PROG}.sym ${PROG}
	@ sz=$$(${TOOL_STAT} -f '%z' ${PROG}); \
	if [ "$$sz" -gt "${BOOTXX_MAXSIZE}" ]; then \
		echo "### ${PROG} size $$sz is larger than ${BOOTXX_MAXSIZE}" >&2; \
		rm ${PROG}; \
		! :; \
	else \
		: pad to sector boundary; \
		pad=$$(( 512 - ( $$sz & 511 ) )); \
		[ $$pad = 512 ] || \
		    dd if=/dev/zero bs=1 count=$$pad >>${PROG} 2>/dev/null; \
		echo "${PROG} size $$sz, $$((${BOOTXX_MAXSIZE} - $$sz)) free"; \
	fi

CWARNFLAGS.gcc+=	${CC_WNO_ADDRESS_OF_PACKED_MEMBER}

.include <bsd.prog.mk>
KLINK_MACHINE=	i386
.include <bsd.klinks.mk>