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# $FreeBSD$
#
PROG= boot
# Order is very important on the SRCS line for this prog
SRCS= start.S table.c boot2.S boot.c asm.S bios.S serial.S
SRCS+= probe_keyboard.c io.c disk.c sys.c
BINMODE= 444
CFLAGS= -O2 -malign-functions=0 -malign-jumps=0 -malign-loops=0 \
-mno-486 \
-DBOOTWAIT=${BOOTWAIT} -DTIMEOUT=${TIMEOUT}
CFLAGS+= -DBOOTSEG=${BOOTSEG} -DBOOTSTACK=${BOOTSTACK}
CFLAGS+= -DDO_BAD144
CFLAGS+= ${CWARNFLAGS}
# By default, if a serial port is going to be used as console, use COM1
# (aka /dev/ttyd0).
BOOT_COMCONSOLE_PORT?=0x3F8
CFLAGS+= -DCOMCONSOLE=${BOOT_COMCONSOLE_PORT}
BOOT_COMCONSOLE_SPEED?=9600
CFLAGS+= -DCONSPEED=${BOOT_COMCONSOLE_SPEED}
# Enable code to take the default boot string from a fixed location on the
# disk. See nextboot(8) and README.386BSD for more info.
#CFLAGS+= -DNAMEBLOCK
#CFLAGS+= -DNAMEBLOCK_WRITEBACK
# Bias the conversion from the BIOS drive number to the FreeBSD unit number
# for hard disks. This may be useful for people booting in a mixed IDE/SCSI
# environment (set BOOT_HD_BIAS to the number of IDE drives).
#CFLAGS+= -DBOOT_HD_BIAS=1
#
# Details: this only applies if BOOT_HD_BIAS > 0. If the BIOS drive number
# for the boot drive is >= BOOT_HD_BIAS, then the boot drive is assumed to
# be SCSI and have unit number (BIOS_drive_number - BOOT_HD_BIAS). E.g.,
# BOOT_HD_BIAS=1 makes BIOS drive 1 correspond to 1:da(0,a) instead of
# 1:wd(1,a). If `da' is given explicitly, then the drive is assumed to be
# SCSI and have BIOS drive number (da_unit_number + BOOT_HD_BIAS). E.g.,
# BOOT_HD_BIAS=1 makes da(0,a) correspond to 1:da(0,a) instead of 0:da(0,a).
CLEANFILES+= boot.nohdr boot.strip boot1 boot2 sizetest
LDFLAGS+= -N -T 0 -nostdlib
NOSHARED= YES
NOMAN=
STRIP=
# tunable timeout parameter, waiting for keypress, calibrated in ms
BOOTWAIT?= 5000
# tunable timeout during string input, calibrated in ms
#TIMEOUT?= 30000
# Location that boot2 is loaded at
BOOTSEG= 0x1000
# Offset in BOOTSEG for the top of the stack, keep this 16 byte aligned
BOOTSTACK= 0xFFF0
boot.strip: boot
cp -p boot boot.strip
strip -aout boot.strip
size -aout boot.strip
boot.nohdr: boot.strip
dd if=boot.strip of=boot.nohdr ibs=32 skip=1 obs=1024b
ls -l boot.nohdr
boot1: boot.nohdr
dd if=boot.nohdr of=boot1 bs=512 count=1
boot2: boot.nohdr
dd if=boot.nohdr of=boot2 bs=512 skip=1
@dd if=boot2 skip=14 of=sizetest 2> /dev/null
@if [ -s sizetest ] ; then \
echo "boot2 is too big" >&2 ; \
rm boot2 ; \
exit 2 ; \
fi
all: boot1 boot2
install:
${INSTALL} ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \
boot1 boot2 ${DESTDIR}${BINDIR}/
install-boothelp:
${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m ${NOBINMODE} \
${.CURDIR}/boot.help ${DESTDIR}/
.include <bsd.kern.mk>
.include <bsd.prog.mk>
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