Makefile revision 281289
1# $FreeBSD: stable/10/sys/boot/i386/boot2/Makefile 281289 2015-04-09 06:38:32Z dim $ 2 3.include <bsd.own.mk> 4 5FILES= boot boot1 boot2 6 7NM?= nm 8 9# A value of 0x80 enables LBA support. 10BOOT_BOOT1_FLAGS?= 0x80 11 12BOOT_COMCONSOLE_PORT?= 0x3f8 13BOOT_COMCONSOLE_SPEED?= 9600 14B2SIOFMT?= 0x3 15 16REL1= 0x700 17ORG1= 0x7c00 18ORG2= 0x2000 19 20# Decide level of UFS support. 21BOOT2_UFS?= UFS1_AND_UFS2 22#BOOT2_UFS?= UFS2_ONLY 23#BOOT2_UFS?= UFS1_ONLY 24 25CFLAGS= -Os \ 26 -fomit-frame-pointer \ 27 -mrtd \ 28 -mregparm=3 \ 29 -DUSE_XREAD \ 30 -D${BOOT2_UFS} \ 31 -DFLAGS=${BOOT_BOOT1_FLAGS} \ 32 -DSIOPRT=${BOOT_COMCONSOLE_PORT} \ 33 -DSIOFMT=${B2SIOFMT} \ 34 -DSIOSPD=${BOOT_COMCONSOLE_SPEED} \ 35 -I${.CURDIR}/../../common \ 36 -I${.CURDIR}/../btx/lib -I. \ 37 -Wall -Waggregate-return -Wbad-function-cast -Wcast-align \ 38 -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ 39 -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \ 40 -Winline \ 41 ${CLANG_OPT_SMALL} 42 43CFLAGS.gcc+= -fno-guess-branch-probability \ 44 -fno-unit-at-a-time \ 45 --param max-inline-insns-single=100 46.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} <= 40201 47CFLAGS.gcc+= -mno-align-long-strings 48.endif 49 50LD_FLAGS=-static -N --gc-sections 51 52# Pick up ../Makefile.inc early. 53.include <bsd.init.mk> 54 55CLEANFILES= boot 56 57boot: boot1 boot2 58 cat boot1 boot2 > boot 59 60CLEANFILES+= boot1 boot1.out boot1.o 61 62boot1: boot1.out 63 ${OBJCOPY} -S -O binary boot1.out ${.TARGET} 64 65boot1.out: boot1.o 66 ${LD} ${LD_FLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o 67 68CLEANFILES+= boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \ 69 boot2.s boot2.s.tmp boot2.h sio.o 70 71boot2: boot2.ld 72 @set -- `ls -l boot2.ld`; x=$$((7680-$$5)); \ 73 echo "$$x bytes available"; test $$x -ge 0 74 dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync 75 76boot2.ld: boot2.ldr boot2.bin ${BTXKERN} 77 btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \ 78 -o ${.TARGET} -P 1 boot2.bin 79 80boot2.ldr: 81 dd if=/dev/zero of=${.TARGET} bs=512 count=1 82 83boot2.bin: boot2.out 84 ${OBJCOPY} -S -O binary boot2.out ${.TARGET} 85 86boot2.out: ${BTXCRT} boot2.o sio.o 87 ${LD} ${LD_FLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC} 88 89boot2.o: boot2.s 90 ${CC} ${ACFLAGS} -c boot2.s 91 92SRCS= boot2.c boot2.h 93 94boot2.s: boot2.c boot2.h ${.CURDIR}/../../common/ufsread.c 95 ${CC} ${CFLAGS} -S -o boot2.s.tmp ${.CURDIR}/boot2.c 96 sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s 97 rm -f boot2.s.tmp 98 99boot2.h: boot1.out 100 ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \ 101 { x = $$1 - ORG1; \ 102 printf("#define XREADORG %#x\n", REL1 + x) }' \ 103 ORG1=`printf "%d" ${ORG1}` \ 104 REL1=`printf "%d" ${REL1}` > ${.TARGET} 105 106.if ${MACHINE_CPUARCH} == "amd64" 107beforedepend boot2.s: machine 108CLEANFILES+= machine 109machine: 110 ln -sf ${.CURDIR}/../../../i386/include machine 111.endif 112 113.include <bsd.prog.mk> 114 115# XXX: clang integrated-as doesn't grok .codeNN directives yet 116CFLAGS.boot1.S= ${CLANG_NO_IAS} 117CFLAGS+= ${CFLAGS.${.IMPSRC:T}} 118