1.include <bsd.init.mk> 2 3FILES= boot boot1 boot2 4 5# A value of 0x80 enables LBA support. 6BOOT_BOOT1_FLAGS?= 0x80 7 8BOOT_COMCONSOLE_PORT?= 0x3f8 9BOOT_COMCONSOLE_SPEED?= 115200 10B2SIOFMT?= 0x3 11 12REL1= 0x700 13ORG1= 0x7c00 14ORG2= 0x2000 15 16# Decide level of UFS support. 17BOOT2_UFS?= UFS1_AND_UFS2 18#BOOT2_UFS?= UFS2_ONLY 19#BOOT2_UFS?= UFS1_ONLY 20 21CFLAGS+=-fomit-frame-pointer \ 22 -mrtd \ 23 -mregparm=3 \ 24 -D${BOOT2_UFS} \ 25 -DFLAGS=${BOOT_BOOT1_FLAGS} \ 26 -DSIOPRT=${BOOT_COMCONSOLE_PORT} \ 27 -DSIOFMT=${B2SIOFMT} \ 28 -DSIOSPD=${BOOT_COMCONSOLE_SPEED} \ 29 -I${LDRSRC} \ 30 -Wall -Waggregate-return -Wbad-function-cast -Wno-cast-align \ 31 -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ 32 -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings 33 34CFLAGS.gcc+= -Os \ 35 -fno-asynchronous-unwind-tables \ 36 --param max-inline-insns-single=100 37 38CFLAGS.clang+= -Oz ${CLANG_OPT_SMALL} 39 40LD_FLAGS+=${LD_FLAGS_BIN} 41 42CLEANFILES+= boot 43 44boot: boot1 boot2 45 cat boot1 boot2 > boot 46 47CLEANFILES+= boot1 boot1.out boot1.o 48 49boot1: boot1.out 50 ${OBJCOPY} -S -O binary boot1.out ${.TARGET} 51 52boot1.out: boot1.o 53 ${LD} ${LD_FLAGS} -e start --defsym ORG=${ORG1} -T ${LDSCRIPT} -o ${.TARGET} boot1.o 54 55CLEANFILES+= boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \ 56 boot2.h sio.o 57 58BOOT2SIZE= 7680 59 60boot2: boot2.ld 61 @set -- `ls -l ${.ALLSRC}`; x=$$((${BOOT2SIZE}-$$5)); \ 62 echo "$$x bytes available"; test $$x -ge 0 63 ${DD} if=${.ALLSRC} of=${.TARGET} bs=${BOOT2SIZE} conv=sync 64 65boot2.ld: boot2.ldr boot2.bin ${BTXKERN} 66 btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \ 67 -o ${.TARGET} -P 1 boot2.bin 68 69boot2.ldr: 70 ${DD} if=/dev/zero of=${.TARGET} bs=512 count=1 71 72boot2.bin: boot2.out 73 ${OBJCOPY} -S -O binary boot2.out ${.TARGET} 74 75# For __ashldi3 76.PATH: ${SRCTOP}/contrib/llvm-project/compiler-rt/lib/builtins 77CFLAGS.ashldi3.c= -Wno-missing-prototypes -Wno-missing-declarations 78CLEANFILES+= ashldi3.o 79 80boot2.out: ${BTXCRT} boot2.o sio.o ashldi3.o 81 ${LD} ${LD_FLAGS} --defsym ORG=${ORG2} -T ${LDSCRIPT} -o ${.TARGET} ${.ALLSRC} 82 83SRCS= boot2.c boot2.h 84 85boot2.h: boot1.out 86 ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \ 87 { x = $$1 - ORG1; \ 88 printf("#define XREADORG %#x\n", REL1 + x) }' \ 89 ORG1=`printf "%d" ${ORG1}` \ 90 REL1=`printf "%d" ${REL1}` > ${.TARGET} 91 92.include <bsd.prog.mk> 93