Makefile revision 125932 
1# $FreeBSD: head/sys/boot/i386/gptboot/Makefile 125932 2004-02-17 07:13:04Z ru $
2
3FILES=		boot boot1 boot2
4
5NM?=		nm
6
7# A value of 0x80 enables LBA support.
8B1FLAGS=	0x80
9
10BOOT_COMCONSOLE_PORT?= 0x3f8
11BOOT_COMCONSOLE_SPEED?= 9600
12B2SIOFMT?=	0x3
13
14REL1=	0x700
15ORG1=	0x7c00
16ORG2=	0x2000
17
18# Decide level of UFS support.
19BOOT2_UFS?=	UFS1_AND_UFS2
20#BOOT2_UFS?=	UFS2_ONLY
21#BOOT2_UFS?=	UFS1_ONLY
22
23CFLAGS=	-Os \
24	-fno-guess-branch-probability -fomit-frame-pointer\
25	-mno-align-long-strings \
26	-mrtd \
27	-D${BOOT2_UFS} \
28	-DFLAGS=${B1FLAGS} \
29	-DSIOPRT=${BOOT_COMCONSOLE_PORT} \
30	-DSIOFMT=${B2SIOFMT} \
31	-DSIOSPD=${BOOT_COMCONSOLE_SPEED} \
32	-I${.CURDIR}/../../common \
33	-I${.CURDIR}/../btx/lib -I. \
34	-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
35	-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
36	-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings
37
38LDFLAGS=-static -N --gc-sections
39
40# Pick up ../Makefile.inc early.
41.include <bsd.init.mk>
42
43CLEANFILES=	boot
44
45boot: boot1 boot2
46	cat boot1 boot2 > boot
47
48CLEANFILES+=	boot1 boot1.out boot1.o
49
50boot1: boot1.out
51	objcopy -S -O binary boot1.out ${.TARGET}
52
53boot1.out: boot1.o
54	${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
55
56CLEANFILES+=	boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \
57		boot2.s boot2.s.tmp boot2.h sio.o
58
59boot2: boot2.ld
60	@set -- `ls -l boot2.ld`; x=$$((7680-$$5)); \
61	    echo "$$x bytes available"; test $$x -ge 0
62	dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync
63
64boot2.ld: boot2.ldr boot2.bin ${BTXKERN}
65	btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \
66	    -o ${.TARGET} -P 1 boot2.bin
67
68boot2.ldr:
69	dd if=/dev/zero of=${.TARGET} bs=276 count=1
70
71boot2.bin: boot2.out
72	objcopy -S -O binary boot2.out ${.TARGET}
73
74boot2.out: ${BTXCRT} boot2.o sio.o
75	${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC}
76
77boot2.o: boot2.s
78
79SRCS=	boot2.c boot2.h
80
81boot2.s: boot2.c boot2.h ${.CURDIR}/../../common/ufsread.c
82	${CC} ${CFLAGS} -S -o boot2.s.tmp ${.CURDIR}/boot2.c
83	sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
84	rm -f boot2.s.tmp
85
86boot2.h: boot1.out
87	${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
88	    { x = $$1 - ORG1; \
89	    printf("#define XREADORG %#x\n", REL1 + x) }' \
90	    ORG1=`printf "%d" ${ORG1}` \
91	    REL1=`printf "%d" ${REL1}` > ${.TARGET}
92
93.if ${MACHINE_ARCH} == "amd64"
94beforedepend boot2.s: machine
95CLEANFILES+=	machine
96machine:
97	ln -sf ${.CURDIR}/../../../i386/include machine
98.endif
99
100.include <bsd.prog.mk>
101