Makefile revision 185562
1# $FreeBSD: head/sys/boot/i386/boot0/Makefile 185562 2008-12-02 14:57:48Z luigi $ 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# -DSIO do I/O using COM1: 13# -DPXE fallback to INT18/PXE with F6 14# -DCHECK_DRIVE enable checking drive number 15# -DONLY_F_KEYS accept only Fx keys in console 16# -DTEST print drive number on entry 17# 18CFLAGS += ${OPTS} 19 20# Flags used in the boot0.S code: 21# 0x0f all valid partitions enabled. 22# 0x80 'packet', use BIOS EDD (LBA) extensions instead of CHS 23# to read from disk. boot0.S does not check that the extensions 24# are supported, but all modern BIOSes should have them. 25# 0x40 'noupdate', disable writing boot0 back to disk so that 26# the current selection is not preserved across reboots. 27# 0x20 'setdrv', override the drive number supplied by the bios 28# with the one in the boot sector. 29 30# Default boot flags: 31BOOT_BOOT0_FLAGS?= 0xcf 32 33# The number of timer ticks to wait for a keypress before assuming the default 34# selection. Since there are 18.2 ticks per second, the default value of 35# 0xb6 (182d) corresponds to 10 seconds. 36BOOT_BOOT0_TICKS?= 0xb6 37 38# The base address that we the boot0 code to to run it. Don't change this 39# unless you are glutton for punishment. 40BOOT_BOOT0_ORG?= 0x600 41 42# Comm settings for boot0sio. 43# Bit(s) Description 44# 7-5 data rate (110,150,300,600,1200,2400,4800,9600 bps) 45# 4-3 parity (00 or 10 = none, 01 = odd, 11 = even) 46# 2 stop bits (set = 2, clear = 1) 47# 1-0 data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8) 48.if !defined(BOOT_BOOT0_COMCONSOLE_SPEED) 49BOOT_COMCONSOLE_SPEED?= 9600 50.if ${BOOT_COMCONSOLE_SPEED} == 9600 51BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3" 52.elif ${BOOT_COMCONSOLE_SPEED} == 4800 53BOOT_BOOT0_COMCONSOLE_SPEED= "6 << 5 + 3" 54.elif ${BOOT_COMCONSOLE_SPEED} == 2400 55BOOT_BOOT0_COMCONSOLE_SPEED= "5 << 5 + 3" 56.elif ${BOOT_COMCONSOLE_SPEED} == 1200 57BOOT_BOOT0_COMCONSOLE_SPEED= "4 << 5 + 3" 58.elif ${BOOT_COMCONSOLE_SPEED} == 600 59BOOT_BOOT0_COMCONSOLE_SPEED= "3 << 5 + 3" 60.elif ${BOOT_COMCONSOLE_SPEED} == 300 61BOOT_BOOT0_COMCONSOLE_SPEED= "2 << 5 + 3" 62.elif ${BOOT_COMCONSOLE_SPEED} == 150 63BOOT_BOOT0_COMCONSOLE_SPEED= "1 << 5 + 3" 64.elif ${BOOT_COMCONSOLE_SPEED} == 110 65BOOT_BOOT0_COMCONSOLE_SPEED= "0 << 5 + 3" 66.else 67BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3" 68.endif 69.endif 70 71CFLAGS+=-DFLAGS=${BOOT_BOOT0_FLAGS} \ 72 -DTICKS=${BOOT_BOOT0_TICKS} \ 73 -DCOMSPEED=${BOOT_BOOT0_COMCONSOLE_SPEED} 74 75LDFLAGS=-N -e start -Ttext ${BOOT_BOOT0_ORG} -Wl,-S,--oformat,binary 76 77.include <bsd.prog.mk> 78