1999-08-28 01:08:13 +00:00
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# $FreeBSD$
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1998-10-14 00:24:16 +00:00
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2010-08-21 15:01:59 +00:00
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.include <bsd.own.mk>
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# XXX: clang can compile the boot code just fine, but boot2 gets too big
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2010-09-21 21:41:45 +00:00
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CC:=${CC:C/^(.*\/)?clang$/gcc/1}
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2010-08-21 15:01:59 +00:00
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2004-02-06 21:58:32 +00:00
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FILES= boot boot1 boot2
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1998-10-12 21:16:26 +00:00
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2001-07-31 19:50:09 +00:00
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NM?= nm
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1999-07-20 01:19:23 +00:00
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# A value of 0x80 enables LBA support.
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2004-08-27 15:01:56 +00:00
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BOOT_BOOT1_FLAGS?= 0x80
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1999-07-20 01:19:23 +00:00
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1999-01-10 14:48:05 +00:00
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BOOT_COMCONSOLE_PORT?= 0x3f8
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BOOT_COMCONSOLE_SPEED?= 9600
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1998-10-20 20:20:48 +00:00
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B2SIOFMT?= 0x3
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2002-10-08 12:09:16 +00:00
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REL1= 0x700
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1998-10-12 21:16:26 +00:00
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ORG1= 0x7c00
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2002-10-08 18:19:02 +00:00
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ORG2= 0x2000
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1998-10-12 21:16:26 +00:00
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2004-02-06 21:58:32 +00:00
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# Decide level of UFS support.
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2002-12-17 21:10:34 +00:00
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BOOT2_UFS?= UFS1_AND_UFS2
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2004-02-06 21:58:32 +00:00
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#BOOT2_UFS?= UFS2_ONLY
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#BOOT2_UFS?= UFS1_ONLY
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2004-02-07 14:32:06 +00:00
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CFLAGS= -Os \
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2004-07-30 04:27:20 +00:00
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-fno-guess-branch-probability \
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-fomit-frame-pointer \
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-fno-unit-at-a-time \
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2002-12-21 02:03:31 +00:00
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-mno-align-long-strings \
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2002-05-10 04:05:42 +00:00
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-mrtd \
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2002-12-14 19:44:13 +00:00
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-D${BOOT2_UFS} \
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2004-08-27 15:01:56 +00:00
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-DFLAGS=${BOOT_BOOT1_FLAGS} \
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2004-02-17 07:13:04 +00:00
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-DSIOPRT=${BOOT_COMCONSOLE_PORT} \
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-DSIOFMT=${B2SIOFMT} \
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-DSIOSPD=${BOOT_COMCONSOLE_SPEED} \
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2002-06-05 11:10:38 +00:00
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-I${.CURDIR}/../../common \
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2002-05-10 00:53:45 +00:00
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-I${.CURDIR}/../btx/lib -I. \
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1998-10-12 21:16:26 +00:00
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-Wall -Waggregate-return -Wbad-function-cast -Wcast-align \
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-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
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2007-05-19 05:07:47 +00:00
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-Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \
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-Winline --param max-inline-insns-single=100
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1998-10-12 21:16:26 +00:00
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2004-02-09 14:11:58 +00:00
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LDFLAGS=-static -N --gc-sections
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1998-10-12 21:16:26 +00:00
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2004-02-06 21:58:32 +00:00
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# Pick up ../Makefile.inc early.
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.include <bsd.init.mk>
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CLEANFILES= boot
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2003-01-26 13:33:57 +00:00
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boot: boot1 boot2
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cat boot1 boot2 > boot
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1998-10-12 21:16:26 +00:00
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2004-02-06 21:58:32 +00:00
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CLEANFILES+= boot1 boot1.out boot1.o
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1998-10-12 21:16:26 +00:00
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boot1: boot1.out
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1998-10-13 18:29:18 +00:00
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objcopy -S -O binary boot1.out ${.TARGET}
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1998-10-12 21:16:26 +00:00
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boot1.out: boot1.o
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${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
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2004-02-06 21:58:32 +00:00
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CLEANFILES+= boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \
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boot2.s boot2.s.tmp boot2.h sio.o
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2002-05-11 21:39:59 +00:00
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2004-02-06 21:58:32 +00:00
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boot2: boot2.ld
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@set -- `ls -l boot2.ld`; x=$$((7680-$$5)); \
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echo "$$x bytes available"; test $$x -ge 0
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dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync
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boot2.ld: boot2.ldr boot2.bin ${BTXKERN}
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btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \
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-o ${.TARGET} -P 1 boot2.bin
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1998-10-12 21:16:26 +00:00
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boot2.ldr:
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2009-03-07 22:05:58 +00:00
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dd if=/dev/zero of=${.TARGET} bs=512 count=1
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1998-10-12 21:16:26 +00:00
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boot2.bin: boot2.out
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1998-10-13 18:29:18 +00:00
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objcopy -S -O binary boot2.out ${.TARGET}
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1998-10-12 21:16:26 +00:00
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2004-02-06 21:58:32 +00:00
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boot2.out: ${BTXCRT} boot2.o sio.o
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${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC}
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2001-07-31 19:50:09 +00:00
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2004-02-06 21:58:32 +00:00
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boot2.o: boot2.s
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1998-10-12 21:16:26 +00:00
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2004-02-07 13:38:47 +00:00
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SRCS= boot2.c boot2.h
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2004-02-06 21:58:32 +00:00
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boot2.s: boot2.c boot2.h ${.CURDIR}/../../common/ufsread.c
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${CC} ${CFLAGS} -S -o boot2.s.tmp ${.CURDIR}/boot2.c
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sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s
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rm -f boot2.s.tmp
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1998-10-14 00:24:16 +00:00
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2004-02-06 21:58:32 +00:00
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boot2.h: boot1.out
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${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
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{ x = $$1 - ORG1; \
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printf("#define XREADORG %#x\n", REL1 + x) }' \
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ORG1=`printf "%d" ${ORG1}` \
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REL1=`printf "%d" ${REL1}` > ${.TARGET}
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2003-06-26 03:51:57 +00:00
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2010-08-23 01:42:09 +00:00
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.if ${MACHINE_CPUARCH} == "amd64"
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2004-02-07 23:30:45 +00:00
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beforedepend boot2.s: machine
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2004-02-07 08:10:07 +00:00
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CLEANFILES+= machine
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2003-06-26 03:51:57 +00:00
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machine:
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ln -sf ${.CURDIR}/../../../i386/include machine
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.endif
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2004-02-06 21:58:32 +00:00
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.include <bsd.prog.mk>
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