1 # $FreeBSD: src/sys/boot/i386/boot2/Makefile,v 1.47 2003/06/26 03:51:57 peter Exp $
2 # $DragonFly: src/sys/boot/i386/boot2/Attic/Makefile,v 1.13 2005/05/07 21:22:32 corecode Exp $
9 CLEANFILES= boot boot1 boot1.out boot1.o \
10 boot2.ldr boot2.bin boot2.ld boot2.out boot2.o boot2.h \
19 # A value of 0x80 enables LBA support.
22 BOOT_COMCONSOLE_PORT?= 0x3f8
23 BOOT_COMCONSOLE_SPEED?= 9600
26 .if exists(${.OBJDIR}/../btx)
27 BTX= ${.OBJDIR}/../btx
29 BTX= ${.CURDIR}/../btx
32 # These origins are taken from bootasm.h.
34 REL1 = `${.OBJDIR}/bootasmdef.nx BOOT1_ORIGIN`
35 REL1D = `${.OBJDIR}/bootasmdef.nx -d BOOT1_ORIGIN`
36 ORG1 = `${.OBJDIR}/bootasmdef.nx MEM_BIOS_LADDR`
37 ORG1D = `${.OBJDIR}/bootasmdef.nx -d MEM_BIOS_LADDR`
39 # WARNING! The ORG2 calculation is the origin of boot2.bin relative to
40 # the start of the BTX *USER* address space, not the start of physical
43 ORG2= `${.OBJDIR}/bootasmdef.nx BOOT2_VORIGIN`
45 # Decide Level of UFS support. UFS1_AND_UFS2 doesn't fit.
47 # BOOT2_UFS?= UFS2_ONLY
48 #BOOT2_UFS?= UFS1_AND_UFS2
52 # -fno-guess-branch-probability
53 # -mno-align-long-strings
54 CFLAGS= -elf -ffreestanding -Os -fno-builtin \
55 -fomit-frame-pointer \
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
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.
67 # __USING_MRTD__ is used to conditionalize any assembly modules
70 .if ${CCVER} == "gcc2"
72 MRTDFLAGS=-D__USING_MRTD__
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.
82 .if ${CCVER} != "gcc2"
83 CFLAGS+= -fno-unit-at-a-time
86 # Disable propolice on gcc that support it
87 .if ${CCVER} == "gcc2" || ${CCVER} == "gcc34"
88 CFLAGS+= -fno-stack-protector
91 LDFLAGS=-nostdlib -static -N --gc-sections
96 cat boot1 boot2 > boot
99 objcopy -S -O binary boot1.out ${.TARGET}
101 boot1.out: boot1.o bootasmdef.nx
102 ${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
105 ${CC} ${CFLAGS} -DFLAGS=${B1FLAGS} ${AFLAGS} \
106 ${.IMPSRC} -o ${.TARGET} -c
108 boot2.o: boot2.c ${.CURDIR}/../../common/ufsread.c
109 ${CC} ${CFLAGS} -S -o boot2.s.tmp ${.IMPSRC}
110 sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
112 ${AS} ${AFLAGS} -o boot2.o boot2.s
114 boot2.h: boot1.out bootasmdef.nx
115 @echo "NOTE: boot2 using xread from boot1 at ${REL1}"
116 ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
118 printf("#define XREADORG %#x\n", REL1 + x) }' \
119 ORG1=${ORG1D} REL1=${REL1D} > boot2.h
121 boot2: boot2.ldr boot2.bin ${BTX}/btx/btx
122 btxld -v -E ${ORG2} -f bin -b ${BTX}/btx/btx -l boot2.ldr \
123 -o boot2.ld -P 1 boot2.bin
124 @ls -l boot2.ld | awk '{ x = 7680 - $$5; \
125 print x " bytes available"; if (x < 0) exit 1 }'
126 dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync 2>/dev/null
129 dd if=/dev/zero of=${.TARGET} bs=512 count=1 2>/dev/null
132 objcopy -S -O binary boot2.out ${.TARGET}
134 boot2.out: boot2.o sio.o
135 ${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} \
136 ${BTX}/lib/crt0.o ${.ALLSRC}
141 ${CC} -DSIOPRT=${BOOT_COMCONSOLE_PORT} -DSIOFMT=${B2SIOFMT} \
142 -DSIOSPD=${BOOT_COMCONSOLE_SPEED} ${MRTDFLAGS} \
143 ${AFLAGS} ${.IMPSRC} -o ${.TARGET} -c
146 ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
147 boot ${DESTDIR}${BINDIR}/boot
148 ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
149 boot1 ${DESTDIR}${BINDIR}/boot1
150 ${INSTALL} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
151 boot2 ${DESTDIR}${BINDIR}/boot2
153 .include <bsd.prog.mk>
155 .if defined(REALLY_AMD64)
158 beforedepend ${OBJS}: machine
161 ln -sf ${.CURDIR}/../../../i386/include machine
166 CLEANFILES+= bootasmdef.nx