Makefile revision 104632 
1# $FreeBSD: head/sys/boot/i386/gptboot/Makefile 104632 2002-10-07 20:56:09Z phk $
2
3PROG=		boot2
4NOMAN=
5STRIP=
6BINDIR?=	/boot
7BINMODE=	444
8CLEANFILES+=	boot1 boot1.out boot1.o \
9		boot2.ldr boot2.bin boot2.ld boot2.out boot2.o boot2.h \
10		boot2.s sio.o
11
12NM?=		nm
13
14# A value of 0x80 enables LBA support.
15B1FLAGS=	0x80
16
17BOOT_COMCONSOLE_PORT?= 0x3f8
18BOOT_COMCONSOLE_SPEED?= 9600
19B2SIOFMT?=	0x3
20
21.if exists(${.OBJDIR}/../btx)
22BTX=	${.OBJDIR}/../btx
23.else
24BTX=	${.CURDIR}/../btx
25.endif
26
27ORG1=	0x7c00
28ORG2=	0x1000
29
30CFLAGS=	-elf -ffreestanding -Os -fno-builtin \
31	-fno-guess-branch-probability \
32	-mrtd \
33	-I${.CURDIR}/../../common \
34	-I${.CURDIR}/../btx/lib -I. \
35	-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
36	-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
37	-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings
38
39CFLAGS+= -DUFS1_ONLY 
40
41LDFLAGS=-nostdlib -static -N
42
43all: boot1 boot2
44
45boot1: boot1.out
46	objcopy -S -O binary boot1.out ${.TARGET}
47
48boot1.out: boot1.o
49	${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
50
51boot1.o: boot1.s
52	${CPP} ${CFLAGS} ${.IMPSRC} | \
53	    ${AS} ${AFLAGS} --defsym FLAGS=${B1FLAGS} -o ${.TARGET}
54
55boot2.o: boot2.c ${.CURDIR}/../../common/ufsread.c
56	${CC} ${CFLAGS} -S -o boot2.s.tmp ${.IMPSRC}
57	sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
58	rm -f boot2.s.tmp
59	${AS} ${AFLAGS} -o boot2.o boot2.s
60
61boot2.h: boot1.out
62	${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
63	 	{ x = $$1 - ORG1; printf("#define XREADORG 0x7%x\n", x) }' \
64	 	ORG1=`printf "%d" ${ORG1}` > boot2.h
65
66boot2: boot2.ldr boot2.bin ${BTX}/btx/btx
67	btxld -v -E ${ORG2} -f bin -b ${BTX}/btx/btx -l boot2.ldr \
68		-o boot2.ld -P 1 boot2.bin
69	@ls -l boot2.ld | awk '{ x = 7680 - $$5; \
70		print x " bytes available"; if (x < 0) exit 1 }'
71	dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync 2>/dev/null
72
73boot2.ldr:
74	dd if=/dev/zero of=${.TARGET} bs=512 count=1 2>/dev/null
75
76boot2.bin: boot2.out
77	objcopy -S -O binary boot2.out ${.TARGET}
78
79boot2.out: boot2.o sio.o
80	${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} \
81		${BTX}/lib/crt0.o boot2.o sio.o
82
83boot2.o: boot2.h
84
85sio.o: sio.s
86	${AS} ${AFLAGS} --defsym SIOPRT=${BOOT_COMCONSOLE_PORT} \
87		--defsym SIOFMT=${B2SIOFMT} \
88		--defsym SIOSPD=${BOOT_COMCONSOLE_SPEED} \
89		${.IMPSRC} -o ${.TARGET}
90
91install:
92	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
93		boot1 ${DESTDIR}${BINDIR}/boot1
94	${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
95		boot2 ${DESTDIR}${BINDIR}/boot2
96
97.include <bsd.prog.mk>
98