Makefile revision 218893
1# $FreeBSD: head/sys/boot/i386/boot0/Makefile 218893 2011-02-20 19:33:47Z dim $ 2 3PROG?= boot0 4STRIP= 5BINMODE=${NOBINMODE} 6NO_MAN= 7SRCS= ${PROG}.S 8 9# Additional options that you can specify with make OPTS="..." 10# (these only apply to boot0.S) 11# 12# -DVOLUME_SERIAL support volume serial number (NT, XP, Vista) 13# -DSIO do I/O using COM1: 14# -DPXE fallback to INT18/PXE with F6 15# -DCHECK_DRIVE enable checking drive number 16# -DONLY_F_KEYS accept only Fx keys in console 17# -DTEST print drive number on entry 18# 19OPTS ?= -DVOLUME_SERIAL -DPXE 20CFLAGS += ${OPTS} 21 22.if ${CC:T:Mclang} == "clang" 23# XXX: clang integrated-as doesn't grok .codeNN directives yet 24CFLAGS+= ${.IMPSRC:T:Mboot0.S:C/^.+$/-no-integrated-as/} 25CFLAGS+= ${.IMPSRC:T:Mboot0ext.S:C/^.+$/-no-integrated-as/} 26.endif 27 28# Flags used in the boot0.S code: 29# 0x0f all valid partitions enabled. 30# 0x80 'packet', use BIOS EDD (LBA) extensions instead of CHS 31# to read from disk. boot0.S does not check that the extensions 32# are supported, but all modern BIOSes should have them. 33# 0x40 'noupdate', disable writing boot0 back to disk so that 34# the current selection is not preserved across reboots. 35# 0x20 'setdrv', override the drive number supplied by the bios 36# with the one in the boot sector. 37 38# Default boot flags: 39BOOT_BOOT0_FLAGS?= 0x8f 40 41# The number of timer ticks to wait for a keypress before assuming the default 42# selection. Since there are 18.2 ticks per second, the default value of 43# 0xb6 (182d) corresponds to 10 seconds. 44BOOT_BOOT0_TICKS?= 0xb6 45 46# The base address that we the boot0 code to to run it. Don't change this 47# unless you are glutton for punishment. 48BOOT_BOOT0_ORG?= 0x600 49 50# Comm settings for boot0sio. 51# Bit(s) Description 52# 7-5 data rate (110,150,300,600,1200,2400,4800,9600 bps) 53# 4-3 parity (00 or 10 = none, 01 = odd, 11 = even) 54# 2 stop bits (set = 2, clear = 1) 55# 1-0 data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8) 56.if !defined(BOOT_BOOT0_COMCONSOLE_SPEED) 57BOOT_COMCONSOLE_SPEED?= 9600 58.if ${BOOT_COMCONSOLE_SPEED} == 9600 59BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3" 60.elif ${BOOT_COMCONSOLE_SPEED} == 4800 61BOOT_BOOT0_COMCONSOLE_SPEED= "6 << 5 + 3" 62.elif ${BOOT_COMCONSOLE_SPEED} == 2400 63BOOT_BOOT0_COMCONSOLE_SPEED= "5 << 5 + 3" 64.elif ${BOOT_COMCONSOLE_SPEED} == 1200 65BOOT_BOOT0_COMCONSOLE_SPEED= "4 << 5 + 3" 66.elif ${BOOT_COMCONSOLE_SPEED} == 600 67BOOT_BOOT0_COMCONSOLE_SPEED= "3 << 5 + 3" 68.elif ${BOOT_COMCONSOLE_SPEED} == 300 69BOOT_BOOT0_COMCONSOLE_SPEED= "2 << 5 + 3" 70.elif ${BOOT_COMCONSOLE_SPEED} == 150 71BOOT_BOOT0_COMCONSOLE_SPEED= "1 << 5 + 3" 72.elif ${BOOT_COMCONSOLE_SPEED} == 110 73BOOT_BOOT0_COMCONSOLE_SPEED= "0 << 5 + 3" 74.else 75BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3" 76.endif 77.endif 78 79CFLAGS+=-DFLAGS=${BOOT_BOOT0_FLAGS} \ 80 -DTICKS=${BOOT_BOOT0_TICKS} \ 81 -DCOMSPEED=${BOOT_BOOT0_COMCONSOLE_SPEED} 82 83LDFLAGS=-e start -Ttext ${BOOT_BOOT0_ORG} -Wl,-N,-S,--oformat,binary 84 85.include <bsd.prog.mk> 86