Makefile revision 276486
1# $FreeBSD: stable/10/sys/boot/i386/boot0/Makefile 276486 2014-12-31 23:25:37Z ngie $ 2 3PROG?= boot0 4STRIP= 5BINMODE=${NOBINMODE} 6MAN= 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# Flags used in the boot0.S code: 23# 0x0f all valid partitions enabled. 24# 0x80 'packet', use BIOS EDD (LBA) extensions instead of CHS 25# to read from disk. boot0.S does not check that the extensions 26# are supported, but all modern BIOSes should have them. 27# 0x40 'noupdate', disable writing boot0 back to disk so that 28# the current selection is not preserved across reboots. 29# 0x20 'setdrv', override the drive number supplied by the bios 30# with the one in the boot sector. 31 32# Default boot flags: 33BOOT_BOOT0_FLAGS?= 0x8f 34 35# The number of timer ticks to wait for a keypress before assuming the default 36# selection. Since there are 18.2 ticks per second, the default value of 37# 0xb6 (182d) corresponds to 10 seconds. 38BOOT_BOOT0_TICKS?= 0xb6 39 40# The base address that we the boot0 code to to run it. Don't change this 41# unless you are glutton for punishment. 42BOOT_BOOT0_ORG?= 0x600 43 44# Comm settings for boot0sio. 45# Bit(s) Description 46# 7-5 data rate (110,150,300,600,1200,2400,4800,9600 bps) 47# 4-3 parity (00 or 10 = none, 01 = odd, 11 = even) 48# 2 stop bits (set = 2, clear = 1) 49# 1-0 data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8) 50.if !defined(BOOT_BOOT0_COMCONSOLE_SPEED) 51BOOT_COMCONSOLE_SPEED?= 9600 52.if ${BOOT_COMCONSOLE_SPEED} == 9600 53BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3" 54.elif ${BOOT_COMCONSOLE_SPEED} == 4800 55BOOT_BOOT0_COMCONSOLE_SPEED= "6 << 5 + 3" 56.elif ${BOOT_COMCONSOLE_SPEED} == 2400 57BOOT_BOOT0_COMCONSOLE_SPEED= "5 << 5 + 3" 58.elif ${BOOT_COMCONSOLE_SPEED} == 1200 59BOOT_BOOT0_COMCONSOLE_SPEED= "4 << 5 + 3" 60.elif ${BOOT_COMCONSOLE_SPEED} == 600 61BOOT_BOOT0_COMCONSOLE_SPEED= "3 << 5 + 3" 62.elif ${BOOT_COMCONSOLE_SPEED} == 300 63BOOT_BOOT0_COMCONSOLE_SPEED= "2 << 5 + 3" 64.elif ${BOOT_COMCONSOLE_SPEED} == 150 65BOOT_BOOT0_COMCONSOLE_SPEED= "1 << 5 + 3" 66.elif ${BOOT_COMCONSOLE_SPEED} == 110 67BOOT_BOOT0_COMCONSOLE_SPEED= "0 << 5 + 3" 68.else 69BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3" 70.endif 71.endif 72 73CFLAGS+=-DFLAGS=${BOOT_BOOT0_FLAGS} \ 74 -DTICKS=${BOOT_BOOT0_TICKS} \ 75 -DCOMSPEED=${BOOT_BOOT0_COMCONSOLE_SPEED} 76 77LDFLAGS=-e start -Ttext ${BOOT_BOOT0_ORG} -Wl,-N,-S,--oformat,binary 78 79.include <bsd.prog.mk> 80 81# XXX: clang integrated-as doesn't grok .codeNN directives yet 82CFLAGS.boot0.S= ${CLANG_NO_IAS} 83CFLAGS.boot0ext.S= ${CLANG_NO_IAS} 84CFLAGS+= ${CFLAGS.${.IMPSRC:T}} 85