b4cb3fe0e3
We want to keep our root file system open to preserve bcache segment between file accesses, thus reducing physical disk IO. Reviewed by: imp, allanjude, kevans (previous version) Differential Revision: https://reviews.freebsd.org/D30848 MFC after: 1 month
95 lines
2.4 KiB
Makefile
95 lines
2.4 KiB
Makefile
# $FreeBSD$
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.include <bsd.init.mk>
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.PATH: ${BOOTSRC}/i386/boot2 ${BOOTSRC}/i386/common ${BOOTSRC}/common
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FILES= zfsboot
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MAN= zfsboot.8
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BOOT_COMCONSOLE_PORT?= 0x3f8
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BOOT_COMCONSOLE_SPEED?= 9600
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B2SIOFMT?= 0x3
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REL1= 0x700
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ORG1= 0x7c00
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ORG2= 0x2000
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CFLAGS+=-DBOOTPROG=\"zfsboot\" \
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-O1 \
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-DBOOT2 \
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-DLOADER_GPT_SUPPORT \
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-DLOADER_MBR_SUPPORT \
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-DLOADER_ZFS_SUPPORT \
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-DLOADER_UFS_SUPPORT \
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-DSIOPRT=${BOOT_COMCONSOLE_PORT} \
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-DSIOFMT=${B2SIOFMT} \
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-DSIOSPD=${BOOT_COMCONSOLE_SPEED} \
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-I${LDRSRC} \
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-I${BOOTSRC}/i386/common \
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-I${BOOTSRC}/i386/libi386 \
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-I${ZFSSRC} \
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-I${SYSDIR}/crypto/skein \
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-I${SYSDIR}/cddl/boot/zfs \
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-I${SYSDIR}/contrib/openzfs/include \
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-I${SYSDIR}/contrib/openzfs/include/os/freebsd/spl \
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-I${SYSDIR}/contrib/openzfs/include/os/freebsd/zfs \
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-I${SYSDIR}/cddl/contrib/opensolaris/common/lz4 \
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-I${BOOTSRC}/i386/boot2 \
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-Wall -Waggregate-return -Wbad-function-cast -Wno-cast-align \
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-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
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-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings
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CFLAGS.part.c+= -DHAVE_MEMCPY -I${SRCTOP}/sys/contrib/zlib
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CFLAGS.gcc+= --param max-inline-insns-single=100
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LD_FLAGS+=${LD_FLAGS_BIN}
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CLEANFILES+= zfsboot
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zfsboot: zfsboot1 zfsboot2
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cat zfsboot1 zfsboot2 > zfsboot
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CLEANFILES+= zfsboot1 zfsldr.out zfsldr.o
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zfsboot1: zfsldr.out
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${OBJCOPY} -S -O binary zfsldr.out ${.TARGET}
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zfsldr.out: zfsldr.o
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${LD} ${LD_FLAGS} -e start --defsym ORG=${ORG1} -T ${LDSCRIPT} -o ${.TARGET} zfsldr.o
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OBJS= zfsboot.o sio.o cons.o bcache.o devopen.o disk.o part.o zfs_cmd.o misc.o
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CLEANFILES+= zfsboot2 zfsboot.ld zfsboot.ldr zfsboot.bin zfsboot.out \
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${OBJS}
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# We currently allow 256k 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= 262144
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# i386 standalone support library
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LIBI386= ${BOOTOBJ}/i386/libi386/libi386.a
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zfsboot2: zfsboot.ld
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@set -- `ls -l ${.ALLSRC}`; x=$$((${BOOT2SIZE}-$$5)); \
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echo "$$x bytes available"; test $$x -ge 0
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${DD} if=${.ALLSRC} of=${.TARGET} bs=${BOOT2SIZE} conv=sync
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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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:> ${.TARGET}
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zfsboot.bin: zfsboot.out
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${OBJCOPY} -S -O binary zfsboot.out ${.TARGET}
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zfsboot.out: ${BTXCRT} ${OBJS}
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${LD} ${LD_FLAGS} --defsym ORG=${ORG2} -T ${LDSCRIPT} -o ${.TARGET} ${.ALLSRC} ${LIBI386} ${LIBSA32}
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SRCS= zfsboot.c
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.include <bsd.prog.mk>
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