1# $FreeBSD$ 2 3.include <bsd.own.mk> 4 5# XXX: clang can compile the boot code just fine, but boot2 gets too big 6CC:= gcc 7 8FILES= boot boot1 boot2 9 10NM?= nm 11 12BOOT_COMCONSOLE_PORT?= 0x238 13BOOT_COMCONSOLE_SPEED?= 9600 14B2SIOFMT?= 0x3 15 16REL1= 0x700 17ORG1= 0 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 -fno-guess-branch-probability \ 27 -fomit-frame-pointer \ 28 -fno-unit-at-a-time \ 29 -mno-align-long-strings \ 30 -mrtd \ 31 -mregparm=3 \ 32 -D${BOOT2_UFS} \ 33 -DFLAGS=${BOOT_BOOT1_FLAGS} \ 34 -DSIOPRT=${BOOT_COMCONSOLE_PORT} \ 35 -DSIOFMT=${B2SIOFMT} \ 36 -DSIOSPD=${BOOT_COMCONSOLE_SPEED} \ 37 -I${.CURDIR}/../../.. \ 38 -I${.CURDIR}/../../i386/boot2 \ 39 -I${.CURDIR}/../../common \ 40 -I${.CURDIR}/../btx/lib -I. \ 41 -Wall -Waggregate-return -Wbad-function-cast -Wcast-align \ 42 -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ 43 -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \ 44 -Winline --param max-inline-insns-single=100 45 46# Set machine type to PC98_SYSTEM_PARAMETER 47#CFLAGS+= -DSET_MACHINE_TYPE 48 49# Initialize the bi_bios_geom using the BIOS geometry 50#CFLAGS+= -DGET_BIOSGEOM 51 52LDFLAGS=-static -N --gc-sections 53 54# Pick up ../Makefile.inc early. 55.include <bsd.init.mk> 56 57.PATH: ${.CURDIR}/../../i386/boot2 58 59CLEANFILES= boot 60 61boot: boot1 boot2 62 cat boot1 boot2 > boot 63 64CLEANFILES+= boot1 boot1.out boot1.o 65 66boot1: boot1.out 67 objcopy -S -O binary boot1.out ${.TARGET} 68 69boot1.out: boot1.o 70 ${LD} ${LDFLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o 71 72CLEANFILES+= boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \ 73 boot2.s boot2.s.tmp boot2.h sio.o 74 75boot2: boot2.ld 76 @set -- `ls -l boot2.ld`; x=$$((7680-$$5)); \ 77 echo "$$x bytes available"; test $$x -ge 0 78 dd if=boot2.ld of=${.TARGET} obs=7680 conv=osync 79 80boot2.ld: boot2.ldr boot2.bin ${BTXKERN} 81 btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \ 82 -o ${.TARGET} -P 1 boot2.bin 83 84boot2.ldr: 85 dd if=/dev/zero of=${.TARGET} bs=276 count=1 86 87boot2.bin: boot2.out 88 objcopy -S -O binary boot2.out ${.TARGET} 89 90boot2.out: ${BTXCRT} boot2.o sio.o 91 ${LD} ${LDFLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC} 92 93boot2.o: boot2.s 94 95SRCS= boot2.c boot2.h 96 97boot2.s: boot2.c boot2.h ${.CURDIR}/../../common/ufsread.c 98 ${CC} ${CFLAGS} -S -o boot2.s.tmp ${.CURDIR}/boot2.c 99 sed -e '/align/d' -e '/nop/d' < boot2.s.tmp > boot2.s 100 rm -f boot2.s.tmp 101 102boot2.h: boot1.out 103 ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T (read|putc)/ \ 104 { x = $$1 - ORG1; \ 105 printf("#define %sORG %#x\n", toupper($$3), REL1 + x) }' \ 106 ORG1=`printf "%d" ${ORG1}` \ 107 REL1=`printf "%d" ${REL1}` > ${.TARGET} 108 109.include <bsd.prog.mk> 110