Makefile revision 260096 
1# $FreeBSD: stable/10/sys/boot/pc98/boot2/Makefile 260096 2013-12-30 20:15:46Z dim $
2
3.include <bsd.own.mk>
4
5# XXX: clang can compile the boot code just fine, but boot2 gets too big
6CC:=		gcc
7COMPILER_TYPE:=	gcc
8
9FILES=		boot boot1 boot2
10
11NM?=		nm
12
13BOOT_COMCONSOLE_PORT?= 0x238
14BOOT_COMCONSOLE_SPEED?= 9600
15B2SIOFMT?=	0x3
16
17REL1=	0x700
18ORG1=	0
19ORG2=	0x2000
20
21# Decide level of UFS support.
22BOOT2_UFS?=	UFS1_AND_UFS2
23#BOOT2_UFS?=	UFS2_ONLY
24#BOOT2_UFS?=	UFS1_ONLY
25
26CFLAGS=	-Os \
27	-fno-guess-branch-probability \
28	-fomit-frame-pointer \
29	-fno-unit-at-a-time \
30	-mno-align-long-strings \
31	-mrtd \
32	-mregparm=3 \
33	-D${BOOT2_UFS} \
34	-DFLAGS=${BOOT_BOOT1_FLAGS} \
35	-DSIOPRT=${BOOT_COMCONSOLE_PORT} \
36	-DSIOFMT=${B2SIOFMT} \
37	-DSIOSPD=${BOOT_COMCONSOLE_SPEED} \
38	-I${.CURDIR}/../../.. \
39	-I${.CURDIR}/../../i386/boot2 \
40	-I${.CURDIR}/../../common \
41	-I${.CURDIR}/../btx/lib -I. \
42	-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
43	-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
44	-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \
45	-Winline --param max-inline-insns-single=100
46
47# Set machine type to PC98_SYSTEM_PARAMETER
48#CFLAGS+=	-DSET_MACHINE_TYPE
49
50# Initialize the bi_bios_geom using the BIOS geometry
51#CFLAGS+=	-DGET_BIOSGEOM
52
53LDFLAGS=-static -N --gc-sections
54
55# Pick up ../Makefile.inc early.
56.include <bsd.init.mk>
57
58.PATH:	${.CURDIR}/../../i386/boot2
59
60CLEANFILES=	boot
61
62boot: boot1 boot2
63	cat boot1 boot2 > boot
64
65CLEANFILES+=	boot1 boot1.out boot1.o
66
67boot1: boot1.out
68	objcopy -S -O binary boot1.out ${.TARGET}
69
70boot1.out: boot1.o
71	${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
72
73CLEANFILES+=	boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \
74		boot2.s boot2.s.tmp boot2.h sio.o
75
76boot2: boot2.ld
77	@set -- `ls -l boot2.ld`; x=$$((7680-$$5)); \
78	    echo "$$x bytes available"; test $$x -ge 0
79	dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync
80
81boot2.ld: boot2.ldr boot2.bin ${BTXKERN}
82	btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \
83	    -o ${.TARGET} -P 1 boot2.bin
84
85boot2.ldr:
86	dd if=/dev/zero of=${.TARGET} bs=276 count=1
87
88boot2.bin: boot2.out
89	objcopy -S -O binary boot2.out ${.TARGET}
90
91boot2.out: ${BTXCRT} boot2.o sio.o
92	${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC}
93
94boot2.o: boot2.s
95
96SRCS=	boot2.c boot2.h
97
98boot2.s: boot2.c boot2.h ${.CURDIR}/../../common/ufsread.c
99	${CC} ${CFLAGS} -S -o boot2.s.tmp ${.CURDIR}/boot2.c
100	sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
101	rm -f boot2.s.tmp
102
103boot2.h: boot1.out
104	${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T (read|putc)/ \
105	    { x = $$1 - ORG1; \
106	    printf("#define %sORG %#x\n", toupper($$3), REL1 + x) }' \
107	    ORG1=`printf "%d" ${ORG1}` \
108	    REL1=`printf "%d" ${REL1}` > ${.TARGET}
109
110.include <bsd.prog.mk>
111