Merge from vendor branch INTEL_ACPICA:
[dragonfly.git] / sys / boot / pc32 / boot2 / Makefile
1 # $FreeBSD: src/sys/boot/i386/boot2/Makefile,v 1.47 2003/06/26 03:51:57 peter Exp $
2 # $DragonFly: src/sys/boot/pc32/boot2/Makefile,v 1.17 2006/08/12 05:42:26 swildner Exp $
3
4 PROG=           boot2
5 NOMAN=
6 STRIP=
7 BINDIR?=        /boot
8 BINMODE=        444
9 CLEANFILES=     boot boot1 boot1.out boot1.o \
10                 boot2.ldr boot2.bin boot2.ld boot2.out boot2.o boot2.h \
11                 boot2.s sio.o
12
13 NM?=            nm
14 NXCFLAGS=
15 NXLDFLAGS=
16
17 .PATH: ${.CURDIR}/..
18
19 # A value of 0x80 enables LBA support.
20 B1FLAGS=        0x80
21
22 BOOT_COMCONSOLE_PORT?= 0x3f8
23 BOOT_COMCONSOLE_SPEED?= 9600
24 B2SIOFMT?=      0x3
25
26 .if exists(${.OBJDIR}/../btx)
27 BTX=    ${.OBJDIR}/../btx
28 .else
29 BTX=    ${.CURDIR}/../btx
30 .endif
31
32 # These origins are taken from bootasm.h.
33 #
34 REL1 = `${.OBJDIR}/bootasmdef.nx BOOT1_ORIGIN`
35 REL1D = `${.OBJDIR}/bootasmdef.nx -d BOOT1_ORIGIN`
36 ORG1 = `${.OBJDIR}/bootasmdef.nx MEM_BIOS_LADDR`
37 ORG1D = `${.OBJDIR}/bootasmdef.nx -d MEM_BIOS_LADDR`
38
39 # WARNING!  The ORG2 calculation is the origin of boot2.bin relative to 
40 # the start of the BTX *USER* address space, not the start of physical 
41 # memory.
42 #
43 ORG2=   `${.OBJDIR}/bootasmdef.nx BOOT2_VORIGIN`
44
45 # Decide Level of UFS support.  UFS1_AND_UFS2 doesn't fit.
46
47 # BOOT2_UFS?=   UFS2_ONLY
48 #BOOT2_UFS?=    UFS1_AND_UFS2
49 BOOT2_UFS?=     UFS1_ONLY
50
51 # gcc3.x
52 #       -fno-guess-branch-probability
53 #       -mno-align-long-strings
54 CFLAGS= -elf -ffreestanding -Os -fno-builtin \
55         -fomit-frame-pointer \
56         -D${BOOT2_UFS} \
57         -I${.CURDIR}/../../common \
58         -I${.CURDIR}/../btx/lib -I. \
59         -Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
60         -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
61         -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \
62         -D__BOOT2_HACK
63
64 # Unfortunately, unit-at-a-time creates issues as yet
65 # not tracked down, in boot2, so we have to turn it off.  Note that
66 # the problem has been narrowed down to the 'boot2' code.  The /boot/loader
67 # doesn't seem to have a problem.
68 #
69 CFLAGS+= -fno-unit-at-a-time
70
71 # Disable propolice on gcc that supports it
72 .if ${CCVER} == "gcc34"
73 CFLAGS+= -fno-stack-protector
74 .endif
75
76 LDFLAGS=-nostdlib -static -N --gc-sections
77
78 all: boot1 boot2 boot
79
80 boot: boot1 boot2
81         cat boot1 boot2 > boot
82
83 boot1: boot1.out
84         objcopy -S -O binary boot1.out ${.TARGET}
85
86 boot1.out: boot1.o bootasmdef.nx
87         ${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
88
89 boot1.o: boot1.S
90         ${CC} ${CFLAGS} -DFLAGS=${B1FLAGS} ${AFLAGS} \
91                 ${.IMPSRC} -o ${.TARGET} -c
92
93 boot2.o: boot2.c ${.CURDIR}/../../common/ufsread.c
94         ${CC} ${CFLAGS} -S -o boot2.s.tmp ${.IMPSRC}
95         sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
96         rm -f boot2.s.tmp
97         ${AS} ${AFLAGS} -o boot2.o boot2.s
98
99 boot2.h: boot1.out bootasmdef.nx
100         @echo "NOTE: boot2 using xread from boot1 at ${REL1}"
101         ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
102                 { x = $$1 - ORG1; \
103                 printf("#define XREADORG %#x\n", REL1 + x) }' \
104                 ORG1=${ORG1D} REL1=${REL1D} > boot2.h
105
106 boot2: boot2.ldr boot2.bin ${BTX}/btx/btx
107         btxld -v -E ${ORG2} -f bin -b ${BTX}/btx/btx -l boot2.ldr \
108                 -o boot2.ld -P 1 boot2.bin
109         @stat boot2.ld | awk '{ x = 7680 - $$8; \
110                 print x " bytes available"; if (x < 0) exit 1 }'
111         dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync 2>/dev/null
112
113 boot2.ldr:
114         dd if=/dev/zero of=${.TARGET} bs=512 count=1 2>/dev/null
115
116 boot2.bin: boot2.out
117         objcopy -S -O binary boot2.out ${.TARGET}
118
119 boot2.out: boot2.o sio.o
120         ${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} \
121                 ${BTX}/lib/crt0.o ${.ALLSRC}
122
123 boot2.o: boot2.h
124
125 sio.o: sio.S
126         ${CC} -DSIOPRT=${BOOT_COMCONSOLE_PORT} -DSIOFMT=${B2SIOFMT} \
127                 -DSIOSPD=${BOOT_COMCONSOLE_SPEED} ${AFLAGS} \
128                 ${.IMPSRC} -o ${.TARGET} -c
129
130 install:
131         ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
132                 boot ${DESTDIR}${BINDIR}/boot
133         ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
134                 boot1 ${DESTDIR}${BINDIR}/boot1
135         ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
136                 boot2 ${DESTDIR}${BINDIR}/boot2
137
138 .include <bsd.prog.mk>
139
140 .if defined(REALLY_AMD64)
141 boot2.o: machine
142
143 beforedepend ${OBJS}: machine
144
145 machine:
146         ${LN} -sf ${.CURDIR}/../../../i386/include machine
147
148 CLEANFILES+=    machine
149 .endif
150
151 CLEANFILES+=    bootasmdef.nx
152