Makefile revision 211725
1# $FreeBSD: head/sys/boot/i386/boot2/Makefile 211677 2010-08-23 01:42:09Z imp $ 2 3.include <bsd.own.mk> 4 5# XXX: clang can compile the boot code just fine, but boot2 gets too big 6CC:=${CC:C/^cc|^clang/gcc/} 7 8FILES= boot boot1 boot2 9 10NM?= nm 11 12# A value of 0x80 enables LBA support. 13BOOT_BOOT1_FLAGS?= 0x80 14 15BOOT_COMCONSOLE_PORT?= 0x3f8 16BOOT_COMCONSOLE_SPEED?= 9600 17B2SIOFMT?= 0x3 18 19REL1= 0x700 20ORG1= 0x7c00 21ORG2= 0x2000 22 23# Decide level of UFS support. 24BOOT2_UFS?= UFS1_AND_UFS2 25#BOOT2_UFS?= UFS2_ONLY 26#BOOT2_UFS?= UFS1_ONLY 27 28CFLAGS= -Os \ 29 -fno-guess-branch-probability \ 30 -fomit-frame-pointer \ 31 -fno-unit-at-a-time \ 32 -mno-align-long-strings \ 33 -mrtd \ 34 -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 \ 35 -D${BOOT2_UFS} \ 36 -DFLAGS=${BOOT_BOOT1_FLAGS} \ 37 -DSIOPRT=${BOOT_COMCONSOLE_PORT} \ 38 -DSIOFMT=${B2SIOFMT} \ 39 -DSIOSPD=${BOOT_COMCONSOLE_SPEED} \ 40 -I${.CURDIR}/../../common \ 41 -I${.CURDIR}/../btx/lib -I. \ 42 -Wall -Waggregate-return -Wbad-function-cast -Wcast-align \ 43 -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ 44 -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \ 45 -Winline --param max-inline-insns-single=100 46 47LDFLAGS=-static -N --gc-sections 48 49# Pick up ../Makefile.inc early. 50.include <bsd.init.mk> 51 52CLEANFILES= boot 53 54boot: boot1 boot2 55 cat boot1 boot2 > boot 56 57CLEANFILES+= boot1 boot1.out boot1.o 58 59boot1: boot1.out 60 objcopy -S -O binary boot1.out ${.TARGET} 61 62boot1.out: boot1.o 63 ${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o 64 65CLEANFILES+= boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \ 66 boot2.s boot2.s.tmp boot2.h sio.o 67 68boot2: boot2.ld 69 @set -- `ls -l boot2.ld`; x=$$((7680-$$5)); \ 70 echo "$$x bytes available"; test $$x -ge 0 71 dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync 72 73boot2.ld: boot2.ldr boot2.bin ${BTXKERN} 74 btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \ 75 -o ${.TARGET} -P 1 boot2.bin 76 77boot2.ldr: 78 dd if=/dev/zero of=${.TARGET} bs=512 count=1 79 80boot2.bin: boot2.out 81 objcopy -S -O binary boot2.out ${.TARGET} 82 83boot2.out: ${BTXCRT} boot2.o sio.o 84 ${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC} 85 86boot2.o: boot2.s 87 88SRCS= boot2.c boot2.h 89 90boot2.s: boot2.c boot2.h ${.CURDIR}/../../common/ufsread.c 91 ${CC} ${CFLAGS} -S -o boot2.s.tmp ${.CURDIR}/boot2.c 92 sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s 93 rm -f boot2.s.tmp 94 95boot2.h: boot1.out 96 ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \ 97 { x = $$1 - ORG1; \ 98 printf("#define XREADORG %#x\n", REL1 + x) }' \ 99 ORG1=`printf "%d" ${ORG1}` \ 100 REL1=`printf "%d" ${REL1}` > ${.TARGET} 101 102.if ${MACHINE_CPUARCH} == "amd64" 103beforedepend boot2.s: machine 104CLEANFILES+= machine 105machine: 106 ln -sf ${.CURDIR}/../../../i386/include machine 107.endif 108 109.include <bsd.prog.mk> 110