1# $FreeBSD: head/sys/boot/i386/boot2/Makefile 125537 2004-02-06 21:58:32Z 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
23AFLAGS+=--defsym FLAGS=${B1FLAGS} \
24 --defsym SIOPRT=${BOOT_COMCONSOLE_PORT} \
25 --defsym SIOFMT=${B2SIOFMT} \
26 --defsym SIOSPD=${BOOT_COMCONSOLE_SPEED}
27
28CFLAGS= -elf -ffreestanding -Os -fno-builtin \
29 -fno-guess-branch-probability -fomit-frame-pointer\
30 -mno-align-long-strings \
31 -mrtd \
32 -D${BOOT2_UFS} \
33 -I${.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 --gc-sections
40
41# Pick up ../Makefile.inc early.
42.include <bsd.init.mk>
43
44CLEANFILES= boot
45
46boot: boot1 boot2
47 cat boot1 boot2 > boot
48
49CLEANFILES+= boot1 boot1.out boot1.o
50
51boot1: boot1.out
52 objcopy -S -O binary boot1.out ${.TARGET}
53
54boot1.out: boot1.o
55 ${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
56
57boot1.o: boot1.s
58 ${CPP} ${CFLAGS} ${.CURDIR}/boot1.s | \
59 ${AS} ${AFLAGS} -o ${.TARGET}
60
61CLEANFILES+= boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \
62 boot2.s boot2.s.tmp boot2.h sio.o
63
64boot2: boot2.ld
65 @set -- `ls -l boot2.ld`; x=$$((7680-$$5)); \
66 echo "$$x bytes available"; test $$x -ge 0
67 dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync
68
69boot2.ld: boot2.ldr boot2.bin ${BTXKERN}
70 btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \
71 -o ${.TARGET} -P 1 boot2.bin
72
73boot2.ldr:
74 dd if=/dev/zero of=${.TARGET} bs=276 count=1
75
76boot2.bin: boot2.out
77 objcopy -S -O binary boot2.out ${.TARGET}
78
79boot2.out: ${BTXCRT} boot2.o sio.o
80 ${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC}
81
82boot2.o: boot2.s
83
84boot2.s: boot2.c boot2.h ${.CURDIR}/../../common/ufsread.c
85 ${CC} ${CFLAGS} -S -o boot2.s.tmp ${.CURDIR}/boot2.c
86 sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
87 rm -f boot2.s.tmp
88
89boot2.h: boot1.out
90 ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
91 { x = $$1 - ORG1; \
92 printf("#define XREADORG %#x\n", REL1 + x) }' \
93 ORG1=`printf "%d" ${ORG1}` \
94 REL1=`printf "%d" ${REL1}` > ${.TARGET}
95
96.if defined(REALLY_AMD64)
97boot2.s: machine
98
99machine:
100 ln -sf ${.CURDIR}/../../../i386/include machine
101
102CLEANFILES+= machine
103.endif
104
105.include <bsd.prog.mk>
2
3FILES= boot boot1 boot2
4
5NM?= nm
6
7# A value of 0x80 enables LBA support.
8B1FLAGS= 0x80
9
10BOOT_COMCONSOLE_PORT?= 0x3f8
11BOOT_COMCONSOLE_SPEED?= 9600
12B2SIOFMT?= 0x3
13
14REL1= 0x700
15ORG1= 0x7c00
16ORG2= 0x2000
17
18# Decide level of UFS support.
19BOOT2_UFS?= UFS1_AND_UFS2
20#BOOT2_UFS?= UFS2_ONLY
21#BOOT2_UFS?= UFS1_ONLY
22
23AFLAGS+=--defsym FLAGS=${B1FLAGS} \
24 --defsym SIOPRT=${BOOT_COMCONSOLE_PORT} \
25 --defsym SIOFMT=${B2SIOFMT} \
26 --defsym SIOSPD=${BOOT_COMCONSOLE_SPEED}
27
28CFLAGS= -elf -ffreestanding -Os -fno-builtin \
29 -fno-guess-branch-probability -fomit-frame-pointer\
30 -mno-align-long-strings \
31 -mrtd \
32 -D${BOOT2_UFS} \
33 -I${.CURDIR}/../../common \
34 -I${.CURDIR}/../btx/lib -I. \
35 -Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
36 -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
37 -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings
38
39LDFLAGS=-nostdlib -static -N --gc-sections
40
41# Pick up ../Makefile.inc early.
42.include <bsd.init.mk>
43
44CLEANFILES= boot
45
46boot: boot1 boot2
47 cat boot1 boot2 > boot
48
49CLEANFILES+= boot1 boot1.out boot1.o
50
51boot1: boot1.out
52 objcopy -S -O binary boot1.out ${.TARGET}
53
54boot1.out: boot1.o
55 ${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
56
57boot1.o: boot1.s
58 ${CPP} ${CFLAGS} ${.CURDIR}/boot1.s | \
59 ${AS} ${AFLAGS} -o ${.TARGET}
60
61CLEANFILES+= boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \
62 boot2.s boot2.s.tmp boot2.h sio.o
63
64boot2: boot2.ld
65 @set -- `ls -l boot2.ld`; x=$$((7680-$$5)); \
66 echo "$$x bytes available"; test $$x -ge 0
67 dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync
68
69boot2.ld: boot2.ldr boot2.bin ${BTXKERN}
70 btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \
71 -o ${.TARGET} -P 1 boot2.bin
72
73boot2.ldr:
74 dd if=/dev/zero of=${.TARGET} bs=276 count=1
75
76boot2.bin: boot2.out
77 objcopy -S -O binary boot2.out ${.TARGET}
78
79boot2.out: ${BTXCRT} boot2.o sio.o
80 ${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC}
81
82boot2.o: boot2.s
83
84boot2.s: boot2.c boot2.h ${.CURDIR}/../../common/ufsread.c
85 ${CC} ${CFLAGS} -S -o boot2.s.tmp ${.CURDIR}/boot2.c
86 sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
87 rm -f boot2.s.tmp
88
89boot2.h: boot1.out
90 ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
91 { x = $$1 - ORG1; \
92 printf("#define XREADORG %#x\n", REL1 + x) }' \
93 ORG1=`printf "%d" ${ORG1}` \
94 REL1=`printf "%d" ${REL1}` > ${.TARGET}
95
96.if defined(REALLY_AMD64)
97boot2.s: machine
98
99machine:
100 ln -sf ${.CURDIR}/../../../i386/include machine
101
102CLEANFILES+= machine
103.endif
104
105.include <bsd.prog.mk>