109 lines
2.7 KiB
Makefile
109 lines
2.7 KiB
Makefile
# $FreeBSD$
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.PATH: ${.CURDIR}/../boot2
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FILES= zfsboot
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NM?= nm
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# A value of 0x80 enables LBA support.
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BOOT_BOOT1_FLAGS?= 0x80
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BOOT_COMCONSOLE_PORT?= 0x3f8
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BOOT_COMCONSOLE_SPEED?= 9600
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B2SIOFMT?= 0x3
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REL1= 0x700
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ORG1= 0x7c00
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ORG2= 0x2000
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CFLAGS= -Os -g \
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-fno-guess-branch-probability \
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-fomit-frame-pointer \
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-fno-unit-at-a-time \
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-mno-align-long-strings \
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-mrtd \
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-mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 \
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-DBOOT2 \
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-DFLAGS=${BOOT_BOOT1_FLAGS} \
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-DSIOPRT=${BOOT_COMCONSOLE_PORT} \
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-DSIOFMT=${B2SIOFMT} \
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-DSIOSPD=${BOOT_COMCONSOLE_SPEED} \
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-I${.CURDIR}/../../zfs \
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-I${.CURDIR}/../../../cddl/boot/zfs \
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-I${.CURDIR}/../btx/lib -I. \
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-I${.CURDIR}/../boot2 \
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-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
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-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
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-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \
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-Winline --param max-inline-insns-single=100
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LDFLAGS=-static -N --gc-sections
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# Pick up ../Makefile.inc early.
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.include <bsd.init.mk>
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CLEANFILES= zfsboot
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zfsboot: zfsboot1 zfsboot2
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cat zfsboot1 zfsboot2 > zfsboot
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CLEANFILES+= zfsboot1 zfsldr.out zfsldr.o
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zfsboot1: zfsldr.out
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objcopy -S -O binary zfsldr.out ${.TARGET}
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zfsldr.out: zfsldr.o
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${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} zfsldr.o
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CLEANFILES+= zfsboot2 zfsboot.ld zfsboot.ldr zfsboot.bin zfsboot.out \
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zfsboot.o zfsboot.s zfsboot.s.tmp zfsboot.h sio.o
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# We currently allow 32768 bytes for zfsboot - in practice it could be
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# any size up to 3.5Mb but keeping it fixed size simplifies zfsldr.
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#
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BOOT2SIZE= 32768
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zfsboot2: zfsboot.ld
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@set -- `ls -l zfsboot.ld`; x=$$((${BOOT2SIZE}-$$5)); \
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echo "$$x bytes available"; test $$x -ge 0
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dd if=zfsboot.ld of=${.TARGET} obs=${BOOT2SIZE} conv=osync
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zfsboot.ld: zfsboot.ldr zfsboot.bin ${BTXKERN}
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btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l zfsboot.ldr \
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-o ${.TARGET} -P 1 zfsboot.bin
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zfsboot.ldr:
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cp /dev/null ${.TARGET}
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zfsboot.bin: zfsboot.out
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objcopy -S -O binary zfsboot.out ${.TARGET}
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zfsboot.out: ${BTXCRT} zfsboot.o sio.o
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${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC} ${LIBSTAND}
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zfsboot.o: zfsboot.s
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SRCS= zfsboot.c zfsboot.h
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zfsboot.s: zfsboot.c zfsboot.h ${.CURDIR}/../../zfs/zfsimpl.c
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${CC} ${CFLAGS} -S -o zfsboot.s.tmp ${.CURDIR}/zfsboot.c
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sed -e '/align/d' -e '/nop/d' < zfsboot.s.tmp > zfsboot.s
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rm -f zfsboot.s.tmp
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zfsboot.h: zfsldr.out
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${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
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{ x = $$1 - ORG1; \
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printf("#define XREADORG %#x\n", REL1 + x) }' \
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ORG1=`printf "%d" ${ORG1}` \
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REL1=`printf "%d" ${REL1}` > ${.TARGET}
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.if ${MACHINE_ARCH} == "amd64"
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beforedepend zfsboot.s: machine
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CLEANFILES+= machine
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machine:
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ln -sf ${.CURDIR}/../../../i386/include machine
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.endif
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.include <bsd.prog.mk>
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