Make getty compile with gcc40: reorder/include headers to resolve
[dragonfly.git] / sys / boot / pc32 / boot2 / Makefile
CommitLineData
5ee58eed 1# $FreeBSD: src/sys/boot/i386/boot2/Makefile,v 1.47 2003/06/26 03:51:57 peter Exp $
405bccb2 2# $DragonFly: src/sys/boot/pc32/boot2/Makefile,v 1.12 2004/09/12 18:37:15 dillon Exp $
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3
4PROG= boot2
5NOMAN=
6STRIP=
7BINDIR?= /boot
8BINMODE= 444
5ee58eed 9CLEANFILES= boot boot1 boot1.out boot1.o \
984263bc 10 boot2.ldr boot2.bin boot2.ld boot2.out boot2.o boot2.h \
5ee58eed 11 boot2.s sio.o
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12
13NM?= nm
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14NXCFLAGS=
15NXLDFLAGS=
16
17.PATH: ${.CURDIR}/..
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18
19# A value of 0x80 enables LBA support.
20B1FLAGS= 0x80
21
22BOOT_COMCONSOLE_PORT?= 0x3f8
23BOOT_COMCONSOLE_SPEED?= 9600
24B2SIOFMT?= 0x3
25
26.if exists(${.OBJDIR}/../btx)
27BTX= ${.OBJDIR}/../btx
28.else
29BTX= ${.CURDIR}/../btx
30.endif
31
cacaceec 32# These origins are taken from bootasm.h.
04144d62 33#
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34REL1 = `${.OBJDIR}/bootasmdef.nx BOOT1_ORIGIN`
35REL1D = `${.OBJDIR}/bootasmdef.nx -d BOOT1_ORIGIN`
36ORG1 = `${.OBJDIR}/bootasmdef.nx MEM_BIOS_LADDR`
37ORG1D = `${.OBJDIR}/bootasmdef.nx -d MEM_BIOS_LADDR`
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38
39# WARNING! The ORG2 calculation is the origin of boot2.bin relative to
40# the start of the BTX *USER* address space, not the start of physical
41# memory.
42#
4e06dda7 43ORG2= `${.OBJDIR}/bootasmdef.nx BOOT2_VORIGIN`
984263bc 44
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45# Decide Level of UFS support. UFS1_AND_UFS2 doesn't fit.
46
47# BOOT2_UFS?= UFS2_ONLY
48#BOOT2_UFS?= UFS1_AND_UFS2
49BOOT2_UFS?= UFS1_ONLY
50
51# gcc3.x
52# -fno-guess-branch-probability
53# -mno-align-long-strings
9ca8a416 54CFLAGS= -elf -ffreestanding -Os -fno-builtin -fno-stack-protector \
5ee58eed 55 -fomit-frame-pointer \
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56 -D${BOOT2_UFS} \
57 -I${.CURDIR}/../../common \
58 -I${.CURDIR}/../btx/lib -I. \
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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
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63# -mrtd will produce bad code (missing stack pops) when combined with
64# gcc-3.4's (default on) unit-at-a-time optimization. See the code
65# generated for 'xputc' as an example.
66#
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67# __USING_MRTD__ is used to conditionalize any assembly modules
68# (aka sio_putc())
69#
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70.if ${CCVER} == "gcc2"
71CFLAGS+= -mrtd
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72MRTDFLAGS=-D__USING_MRTD__
73.else
74MRTDFLAGS=
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75.endif
76
77# Unfortunately, unit-at-a-time creates other issues as well, as yet
78# not tracked down, in boot2, so we have to turn it off. Note that
79# the problem has been narrowed down to the 'boot2' code. The /boot/loader
80# doesn't seem to have a problem.
81#
82.if ${CCVER} != "gcc2"
83CFLAGS+= -fno-unit-at-a-time
84.endif
85
5ee58eed 86LDFLAGS=-nostdlib -static -N --gc-sections
984263bc 87
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88all: boot1 boot2 boot
89
90boot: boot1 boot2
91 cat boot1 boot2 > boot
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92
93boot1: boot1.out
94 objcopy -S -O binary boot1.out ${.TARGET}
95
cacaceec 96boot1.out: boot1.o bootasmdef.nx
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97 ${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
98
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99boot1.o: boot1.S
100 ${CC} ${CFLAGS} -DFLAGS=${B1FLAGS} ${AFLAGS} \
101 ${.IMPSRC} -o ${.TARGET} -c
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102
103boot2.o: boot2.c ${.CURDIR}/../../common/ufsread.c
104 ${CC} ${CFLAGS} -S -o boot2.s.tmp ${.IMPSRC}
105 sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
106 rm -f boot2.s.tmp
107 ${AS} ${AFLAGS} -o boot2.o boot2.s
984263bc 108
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109boot2.h: boot1.out bootasmdef.nx
110 @echo "NOTE: boot2 using xread from boot1 at ${REL1}"
984263bc 111 ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
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112 { x = $$1 - ORG1; \
113 printf("#define XREADORG %#x\n", REL1 + x) }' \
cacaceec 114 ORG1=${ORG1D} REL1=${REL1D} > boot2.h
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115
116boot2: boot2.ldr boot2.bin ${BTX}/btx/btx
117 btxld -v -E ${ORG2} -f bin -b ${BTX}/btx/btx -l boot2.ldr \
118 -o boot2.ld -P 1 boot2.bin
119 @ls -l boot2.ld | awk '{ x = 7680 - $$5; \
120 print x " bytes available"; if (x < 0) exit 1 }'
121 dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync 2>/dev/null
122
123boot2.ldr:
2d7f6790 124 dd if=/dev/zero of=${.TARGET} bs=512 count=1 2>/dev/null
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125
126boot2.bin: boot2.out
127 objcopy -S -O binary boot2.out ${.TARGET}
128
129boot2.out: boot2.o sio.o
130 ${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} \
5ee58eed 131 ${BTX}/lib/crt0.o ${.ALLSRC}
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132
133boot2.o: boot2.h
134
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135sio.o: sio.S
136 ${CC} -DSIOPRT=${BOOT_COMCONSOLE_PORT} -DSIOFMT=${B2SIOFMT} \
405bccb2 137 -DSIOSPD=${BOOT_COMCONSOLE_SPEED} ${MRTDFLAGS} \
409cbc03 138 ${AFLAGS} ${.IMPSRC} -o ${.TARGET} -c
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139
140install:
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141 ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
142 boot ${DESTDIR}${BINDIR}/boot
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143 ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
144 boot1 ${DESTDIR}${BINDIR}/boot1
145 ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
146 boot2 ${DESTDIR}${BINDIR}/boot2
147
148.include <bsd.prog.mk>
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149
150.if defined(REALLY_AMD64)
151boot2.o: machine
152
153beforedepend ${OBJS}: machine
154
155machine:
156 ln -sf ${.CURDIR}/../../../i386/include machine
157
158CLEANFILES+= machine
159.endif
160
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161CLEANFILES+= bootasmdef.nx
162