1# $FreeBSD$
2
3.PATH:		${.CURDIR}/../boot2 ${.CURDIR}/../common ${.CURDIR}/../../common
4
5FILES=		zfsboot
6
7NM?=		nm
8
9BOOT_COMCONSOLE_PORT?= 0x3f8
10BOOT_COMCONSOLE_SPEED?= 9600
11B2SIOFMT?=	0x3
12
13REL1=	0x700
14ORG1=	0x7c00
15ORG2=	0x2000
16
17CFLAGS=	-DBOOTPROG=\"zfsboot\" \
18	-O1 \
19	-DBOOT2 \
20	-DSIOPRT=${BOOT_COMCONSOLE_PORT} \
21	-DSIOFMT=${B2SIOFMT} \
22	-DSIOSPD=${BOOT_COMCONSOLE_SPEED} \
23	-I${.CURDIR}/../../common \
24	-I${.CURDIR}/../common \
25	-I${.CURDIR}/../../zfs \
26	-I${.CURDIR}/../../../cddl/boot/zfs \
27	-I${.CURDIR}/../btx/lib -I. \
28	-I${.CURDIR}/../boot2 \
29	-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
30	-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
31	-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \
32	-Winline
33
34CFLAGS.gcc+=	--param max-inline-insns-single=100
35
36LD_FLAGS=-static -N --gc-sections
37
38LIBSTAND=	${.OBJDIR}/../../libstand32/libstand.a
39
40# Pick up ../Makefile.inc early.
41.include <bsd.init.mk>
42
43CLEANFILES=	zfsboot
44
45zfsboot: zfsboot1 zfsboot2
46	cat zfsboot1 zfsboot2 > zfsboot
47
48CLEANFILES+=	zfsboot1 zfsldr.out zfsldr.o
49
50zfsboot1: zfsldr.out
51	objcopy -S -O binary zfsldr.out ${.TARGET}
52
53zfsldr.out: zfsldr.o
54	${LD} ${LD_FLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} zfsldr.o
55
56CLEANFILES+=	zfsboot2 zfsboot.ld zfsboot.ldr zfsboot.bin zfsboot.out \
57		zfsboot.o zfsboot.s zfsboot.s.tmp sio.o cons.o drv.o util.o
58
59# We currently allow 65536 bytes for zfsboot - in practice it could be
60# any size up to 3.5Mb but keeping it fixed size simplifies zfsldr.
61# 
62BOOT2SIZE=	65536
63
64zfsboot2: zfsboot.ld
65	@set -- `ls -l zfsboot.ld`; x=$$((${BOOT2SIZE}-$$5)); \
66	    echo "$$x bytes available"; test $$x -ge 0
67	dd if=zfsboot.ld of=${.TARGET} obs=${BOOT2SIZE} conv=osync
68
69zfsboot.ld: zfsboot.ldr zfsboot.bin ${BTXKERN}
70	btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l zfsboot.ldr \
71	    -o ${.TARGET} -P 1 zfsboot.bin
72
73zfsboot.ldr:
74	cp /dev/null ${.TARGET}
75
76zfsboot.bin: zfsboot.out
77	objcopy -S -O binary zfsboot.out ${.TARGET}
78
79zfsboot.out: ${BTXCRT} zfsboot.o sio.o drv.o cons.o util.o
80	${LD} ${LD_FLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC} ${LIBSTAND}
81
82SRCS=	zfsboot.c
83
84.if ${MACHINE_CPUARCH} == "amd64"
85beforedepend zfsboot.o: machine
86CLEANFILES+=	machine
87machine:
88	ln -sf ${.CURDIR}/../../../i386/include machine
89.endif
90
91.include <bsd.prog.mk>
92
93# XXX: clang integrated-as doesn't grok .codeNN directives yet
94CFLAGS.zfsldr.S=	${CLANG_NO_IAS}
95CFLAGS+=		${CFLAGS.${.IMPSRC:T}}
96