Makefile revision 125517 
1# $FreeBSD: head/sys/boot/i386/boot0/Makefile 125517 2004-02-06 12:58:32Z ru $
2
3PROG?=		boot0
4NOMAN=
5STRIP=
6BINMODE=	444
7
8M4?=	m4
9
10# The default set of flags compiled into boot0.  This enables update (writing
11# the modified boot0 back to disk after running so that the selection made is
12# saved), packet mode (detect and use the BIOS EDD extensions if we try to
13# boot past the 1024 cylinder liimt), and booting from all valid slices.
14BOOT_BOOT0_FLAGS?=	0xf
15
16# The number of timer ticks to wait for a keypress before assuming the default
17# selection.  Since there are 18.2 ticks per second, the default value of
18# 0xb6 (182d) corresponds to 10 seconds.
19BOOT_BOOT0_TICKS?=	0xb6
20
21# The base address that we the boot0 code to to run it.  Don't change this
22# unless you are glutton for punishment.
23BOOT_BOOT0_ORG?=	0x600
24
25# Comm settings for boot0sio.  0xE3 => 9600 8-N-1
26# XXX: We should create a build-tool or something to convert BOOT_CONSOLE_SPEED
27# and BOOT_COMCONSOLE_PORT into the correct values to define on the build
28# command line
29BOOT_BOOT0_COMCONSOLE_SPEED?=	0xE3
30
31${PROG}: ${PROG}.o
32	${LD} -N -e start -Ttext ${BOOT_BOOT0_ORG} -o ${PROG}.out ${PROG}.o
33	objcopy -S -O binary ${PROG}.out ${.TARGET}
34
35${PROG}.o: ${PROG}.s
36	${AS} ${AFLAGS} --defsym FLAGS=${BOOT_BOOT0_FLAGS} \
37		--defsym TICKS=${BOOT_BOOT0_TICKS} \
38		--defsym COMSPEED=${BOOT_BOOT0_COMCONSOLE_SPEED} \
39		${.IMPSRC} -o ${.TARGET}
40
41CLEANFILES+= ${PROG}.out ${PROG}.o
42
43.include <bsd.prog.mk>
44