Makefile revision 212062 
1# $FreeBSD: head/sys/boot/pc98/boot2/Makefile 212062 2010-08-31 17:38:20Z dim $
2
3.include <bsd.own.mk>
4
5# XXX: clang can compile the boot code just fine, but boot2 gets too big
6.if ${CC:T:Mclang} == "clang"
7CC=gcc
8.endif
9
10FILES=		boot boot1 boot2
11
12NM?=		nm
13
14BOOT_COMCONSOLE_PORT?= 0x238
15BOOT_COMCONSOLE_SPEED?= 9600
16B2SIOFMT?=	0x3
17
18REL1=	0x700
19ORG1=	0
20ORG2=	0x2000
21
22# Decide level of UFS support.
23BOOT2_UFS?=	UFS1_AND_UFS2
24#BOOT2_UFS?=	UFS2_ONLY
25#BOOT2_UFS?=	UFS1_ONLY
26
27CFLAGS=	-Os \
28	-fno-guess-branch-probability \
29	-fomit-frame-pointer \
30	-fno-unit-at-a-time \
31	-mno-align-long-strings \
32	-mrtd \
33	-mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 \
34	-D${BOOT2_UFS} \
35	-DFLAGS=${BOOT_BOOT1_FLAGS} \
36	-DSIOPRT=${BOOT_COMCONSOLE_PORT} \
37	-DSIOFMT=${B2SIOFMT} \
38	-DSIOSPD=${BOOT_COMCONSOLE_SPEED} \
39	-I${.CURDIR}/../../.. \
40	-I${.CURDIR}/../../i386/boot2 \
41	-I${.CURDIR}/../../common \
42	-I${.CURDIR}/../btx/lib -I. \
43	-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
44	-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
45	-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \
46	-Winline --param max-inline-insns-single=100
47
48# Set machine type to PC98_SYSTEM_PARAMETER
49#CFLAGS+=	-DSET_MACHINE_TYPE
50
51# Initialize the bi_bios_geom using the BIOS geometry
52#CFLAGS+=	-DGET_BIOSGEOM
53
54LDFLAGS=-static -N --gc-sections
55
56# Pick up ../Makefile.inc early.
57.include <bsd.init.mk>
58
59.PATH:	${.CURDIR}/../../i386/boot2
60
61CLEANFILES=	boot
62
63boot: boot1 boot2
64	cat boot1 boot2 > boot
65
66CLEANFILES+=	boot1 boot1.out boot1.o
67
68boot1: boot1.out
69	objcopy -S -O binary boot1.out ${.TARGET}
70
71boot1.out: boot1.o
72	${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
73
74CLEANFILES+=	boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \
75		boot2.s boot2.s.tmp boot2.h sio.o
76
77boot2: boot2.ld
78	@set -- `ls -l boot2.ld`; x=$$((7680-$$5)); \
79	    echo "$$x bytes available"; test $$x -ge 0
80	dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync
81
82boot2.ld: boot2.ldr boot2.bin ${BTXKERN}
83	btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \
84	    -o ${.TARGET} -P 1 boot2.bin
85
86boot2.ldr:
87	dd if=/dev/zero of=${.TARGET} bs=276 count=1
88
89boot2.bin: boot2.out
90	objcopy -S -O binary boot2.out ${.TARGET}
91
92boot2.out: ${BTXCRT} boot2.o sio.o
93	${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC}
94
95boot2.o: boot2.s
96
97SRCS=	boot2.c boot2.h
98
99boot2.s: boot2.c boot2.h ${.CURDIR}/../../common/ufsread.c
100	${CC} ${CFLAGS} -S -o boot2.s.tmp ${.CURDIR}/boot2.c
101	sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
102	rm -f boot2.s.tmp
103
104boot2.h: boot1.out
105	${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T (read|putc)/ \
106	    { x = $$1 - ORG1; \
107	    printf("#define %sORG %#x\n", toupper($$3), REL1 + x) }' \
108	    ORG1=`printf "%d" ${ORG1}` \
109	    REL1=`printf "%d" ${REL1}` > ${.TARGET}
110
111.include <bsd.prog.mk>
112