sys/boot/i386/boot2/Makefile

   1 # $FreeBSD$
   2
   3 .include <bsd.init.mk>
   4
   5 FILES=          boot boot1 boot2
   6
   7 NM?=            nm
   8
   9 # A value of 0x80 enables LBA support.
  10 BOOT_BOOT1_FLAGS?=      0x80
  11
  12 BOOT_COMCONSOLE_PORT?= 0x3f8
  13 BOOT_COMCONSOLE_SPEED?= 9600
  14 B2SIOFMT?=      0x3
  15
  16 REL1=   0x700
  17 ORG1=   0x7c00
  18 ORG2=   0x2000
  19
  20 # Decide level of UFS support.
  21 BOOT2_UFS?=     UFS1_AND_UFS2
  22 #BOOT2_UFS?=    UFS2_ONLY
  23 #BOOT2_UFS?=    UFS1_ONLY
  24
  25 CFLAGS+=-fomit-frame-pointer \
  26         -mrtd \
  27         -mregparm=3 \
  28         -D${BOOT2_UFS} \
  29         -DFLAGS=${BOOT_BOOT1_FLAGS} \
  30         -DSIOPRT=${BOOT_COMCONSOLE_PORT} \
  31         -DSIOFMT=${B2SIOFMT} \
  32         -DSIOSPD=${BOOT_COMCONSOLE_SPEED} \
  33         -I${LDRSRC} \
  34         -I${BTXLIB} \
  35         -Wall -Waggregate-return -Wbad-function-cast -Wno-cast-align \
  36         -Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
  37         -Wpointer-arith -Wshadow -Wstrict-prototypes -Wwrite-strings \
  38         -Winline
  39
  40 CFLAGS.gcc+=    -Os \
  41                 -fno-asynchronous-unwind-tables \
  42                 --param max-inline-insns-single=100
  43 .if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} <= 40201
  44 CFLAGS.gcc+=   -mno-align-long-strings
  45 .endif
  46
  47 CFLAGS.clang+=  -Oz ${CLANG_OPT_SMALL}
  48
  49 LD_FLAGS+=${LD_FLAGS_BIN}
  50
  51 CLEANFILES+=    boot
  52
  53 boot: boot1 boot2
  54         cat boot1 boot2 > boot
  55
  56 CLEANFILES+=    boot1 boot1.out boot1.o
  57
  58 boot1: boot1.out
  59         ${OBJCOPY} -S -O binary boot1.out ${.TARGET}
  60
  61 boot1.out: boot1.o
  62         ${LD} ${LD_FLAGS} -e start -Ttext ${ORG1} -o ${.TARGET} boot1.o
  63
  64 CLEANFILES+=    boot2 boot2.ld boot2.ldr boot2.bin boot2.out boot2.o \
  65                 boot2.h sio.o
  66
  67 BOOT2SIZE=      7680
  68
  69 boot2: boot2.ld
  70         @set -- `ls -l ${.ALLSRC}`; x=$$((${BOOT2SIZE}-$$5)); \
  71             echo "$$x bytes available"; test $$x -ge 0
  72         ${DD} if=${.ALLSRC} of=${.TARGET} obs=${BOOT2SIZE} conv=osync
  73
  74 boot2.ld: boot2.ldr boot2.bin ${BTXKERN}
  75         btxld -v -E ${ORG2} -f bin -b ${BTXKERN} -l boot2.ldr \
  76             -o ${.TARGET} -P 1 boot2.bin
  77
  78 boot2.ldr:
  79         ${DD} if=/dev/zero of=${.TARGET} bs=512 count=1
  80
  81 boot2.bin: boot2.out
  82         ${OBJCOPY} -S -O binary boot2.out ${.TARGET}
  83
  84 boot2.out: ${BTXCRT} boot2.o sio.o
  85         ${LD} ${LD_FLAGS} -Ttext ${ORG2} -o ${.TARGET} ${.ALLSRC}
  86
  87 SRCS=   boot2.c boot2.h
  88
  89 boot2.h: boot1.out
  90         ${NM} -t d ${.ALLSRC} | awk '/([0-9])+ T xread/ \
  91             { x = $$1 - ORG1; \
  92             printf("#define XREADORG %#x\n", REL1 + x) }' \
  93             ORG1=`printf "%d" ${ORG1}` \
  94             REL1=`printf "%d" ${REL1}` > ${.TARGET}
  95
  96 .include <bsd.prog.mk>
  97
  98 # XXX: clang integrated-as doesn't grok .codeNN directives yet
  99 CFLAGS.boot1.S=         ${CLANG_NO_IAS}