Makefile revision 97860 
1# $FreeBSD: head/sys/boot/i386/gptboot/Makefile 97860 2002-06-05 11:10:38Z 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
39LDFLAGS=-nostdlib -static -N
40
41all: boot1 boot2
42
43boot1: boot1.out
44	objcopy -S -O binary boot1.out ${.TARGET}
45
46boot1.out: boot1.o
47	${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
48
49boot1.o: boot1.s
50	${AS} ${AFLAGS} --defsym FLAGS=${B1FLAGS} ${.IMPSRC} -o ${.TARGET}
51
52boot2.o: boot2.c
53	${CC} ${CFLAGS} -S -o boot2.s.tmp ${.IMPSRC}
54	sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
55	rm -f boot2.s.tmp
56	${AS} ${AFLAGS} -o boot2.o boot2.s
57
58boot2.h: boot1.out
59	${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
60	 	{ x = $$1 - ORG1; printf("#define XREADORG 0x7%x\n", x) }' \
61	 	ORG1=`printf "%d" ${ORG1}` > boot2.h
62
63boot2: boot2.ldr boot2.bin ${BTX}/btx/btx
64	btxld -v -E ${ORG2} -f bin -b ${BTX}/btx/btx -l boot2.ldr \
65		-o boot2.ld -P 1 boot2.bin
66	@ls -l boot2.ld | awk '{ x = 7680 - $$5; \
67		print x " bytes available"; if (x < 0) exit 1 }'
68	dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync 2>/dev/null
69
70boot2.ldr:
71	dd if=/dev/zero of=${.TARGET} bs=512 count=1 2>/dev/null
72
73boot2.bin: boot2.out
74	objcopy -S -O binary boot2.out ${.TARGET}
75
76boot2.out: boot2.o sio.o
77	${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} \
78		${BTX}/lib/crt0.o boot2.o sio.o
79
80boot2.o: boot2.h
81
82sio.o: sio.s
83	${AS} ${AFLAGS} --defsym SIOPRT=${BOOT_COMCONSOLE_PORT} \
84		--defsym SIOFMT=${B2SIOFMT} \
85		--defsym SIOSPD=${BOOT_COMCONSOLE_SPEED} \
86		${.IMPSRC} -o ${.TARGET}
87
88install:
89	${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
90		boot1 ${DESTDIR}${BINDIR}/boot1
91	${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
92		boot2 ${DESTDIR}${BINDIR}/boot2
93
94.include <bsd.prog.mk>
95