44 lines
1.2 KiB
Makefile
44 lines
1.2 KiB
Makefile
# $FreeBSD$
|
|
|
|
MAINTAINER= rnordier
|
|
|
|
PROG= boot0
|
|
NOMAN=
|
|
STRIP=
|
|
BINDIR?= /boot
|
|
BINMODE= 444
|
|
|
|
M4?= m4
|
|
|
|
# The default set of flags compiled into boot0. This enables update (writing
|
|
# the modified boot0 back to disk after running so that the selection made is
|
|
# saved), packet mode (detect and use the BIOS EDD extensions if we try to
|
|
# boot past the 1024 cylinder liimt), and booting from all valid slices.
|
|
BOOT_BOOT0_FLAGS?= 0x8f
|
|
|
|
# The number of timer ticks to wait for a keypress before assuming the default
|
|
# selection. Since there are 18.2 ticks per second, the default value of
|
|
# 0xb6 (182d) corresponds to 10 seconds.
|
|
BOOT_BOOT0_TICKS?= 0xb6
|
|
|
|
# The base address that we the boot0 code to to run it. Don't change this
|
|
# unless you are glutton for punishment.
|
|
BOOT_BOOT0_ORG?= 0x600
|
|
|
|
boot0: boot0.o
|
|
.if ${OBJFORMAT} == aout
|
|
${LD} -N -s -T ${BOOT_BOOT0_ORG} -o boot0.out boot0.o
|
|
dd if=boot0.out of=${.TARGET} ibs=32 skip=1
|
|
.else
|
|
${LD} -N -e start -Ttext ${BOOT_BOOT0_ORG} -o boot0.out boot0.o
|
|
objcopy -S -O binary boot0.out ${.TARGET}
|
|
.endif
|
|
|
|
boot0.o: boot0.s
|
|
${AS} ${AFLAGS} --defsym FLAGS=${BOOT_BOOT0_FLAGS} \
|
|
--defsym TICKS=${BOOT_BOOT0_TICKS} ${.IMPSRC} -o ${.TARGET}
|
|
|
|
CLEANFILES+= boot0.out boot0.o
|
|
|
|
.include <bsd.prog.mk>
|