1 2.include <bsd.init.mk> 3 4FILES= boot boot1 boot2 5 6# A value of 0x80 enables LBA support. 7BOOT_BOOT1_FLAGS?= 0x80 8 9BOOT_COMCONSOLE_PORT?= 0x3f8 10BOOT_COMCONSOLE_SPEED?= 115200 11B2SIOFMT?= 0x3 12 13REL1= 0x700 14ORG1= 0x7c00 15ORG2= 0x2000 16 17# Decide level of UFS support. 18BOOT2_UFS?= UFS1_AND_UFS2 19#BOOT2_UFS?= UFS2_ONLY 20#BOOT2_UFS?= UFS1_ONLY 21 22CFLAGS+=-fomit-frame-pointer \ 23 -mrtd \ 24 -mregparm=3 \ 25 -D${BOOT2_UFS} \ 26 -DFLAGS=${BOOT_BOOT1_FLAGS} \ 27 -DSIOPRT=${BOOT_COMCONSOLE_PORT} \ 28 -DSIOFMT=${B2SIOFMT} \ 29 -DSIOSPD=${BOOT_COMCONSOLE_SPEED} \ 30 -I${LDRSRC} \ 31 -Wall -Waggregate-return -Wbad-function-cast -Wno-cast-align \ 32 -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \ 33 -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings 34 35CFLAGS.gcc+= -Os \ 36 -fno-asynchronous-unwind-tables \ 37 --param max-inline-insns-single=100 38 39CFLAGS.clang+= -Oz ${CLANG_OPT_SMALL} 40 41LD_FLAGS+=${LD_FLAGS_BIN} 42 43CLEANFILES+= boot 44 45boot: boot1 boot2 46 cat boot1 boot2 > boot 47 48CLEANFILES+= boot1 boot1.out boot1.o 49 50boot1: boot1.out 51 ${OBJCOPY} -S -O binary boot1.out ${.TARGET} 52 53boot1.out: boot1.o 54 ${LD} ${LD_FLAGS} -e start --defsym ORG=${ORG1} -T ${LDSCRIPT} -o ${.TARGET} boot1.o 55 56CLEANFILES+= boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \ 57 boot2.h sio.o 58 59BOOT2SIZE= 7680 60 61boot2: boot2.ld 62 @set -- `ls -l ${.ALLSRC}`; x=$$((${BOOT2SIZE}-$$5)); \ 63 echo "$$x bytes available"; test $$x -ge 0 64 ${DD} if=${.ALLSRC} of=${.TARGET} bs=${BOOT2SIZE} conv=sync 65 66boot2.ld: boot2.ldr boot2.bin ${BTXKERN} 67 btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \ 68 -o ${.TARGET} -P 1 boot2.bin 69 70boot2.ldr: 71 ${DD} if=/dev/zero of=${.TARGET} bs=512 count=1 72 73boot2.bin: boot2.out 74 ${OBJCOPY} -S -O binary boot2.out ${.TARGET} 75 76# For __ashldi3 77.PATH: ${SRCTOP}/contrib/llvm-project/compiler-rt/lib/builtins 78CFLAGS.ashldi3.c= -Wno-missing-prototypes -Wno-missing-declarations 79CLEANFILES+= ashldi3.o 80 81boot2.out: ${BTXCRT} boot2.o sio.o ashldi3.o 82 ${LD} ${LD_FLAGS} --defsym ORG=${ORG2} -T ${LDSCRIPT} -o ${.TARGET} ${.ALLSRC} 83 84SRCS= boot2.c boot2.h 85 86boot2.h: boot1.out 87 ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \ 88 { x = $$1 - ORG1; \ 89 printf("#define XREADORG %#x\n", REL1 + x) }' \ 90 ORG1=`printf "%d" ${ORG1}` \ 91 REL1=`printf "%d" ${REL1}` > ${.TARGET} 92 93.include <bsd.prog.mk> 94