Makefile.booters revision 1.39
1 # $NetBSD: Makefile.booters,v 1.39 2003/01/28 16:21:58 dsl Exp $ 2 3 .include <bsd.own.mk> 4 5 STRIPFLAG= 6 BINMODE=444 7 8 LIBCRT0= # nothing 9 LIBCRTBEGIN= # nothing 10 LIBCRTEND= # nothing 11 LIBC= # nothing 12 13 # Make sure we override any optimization options specified by the 14 # user. 15 .if ${MACHINE_ARCH} == "x86_64" 16 COPTS= -Os -m32 17 CPPFLAGS+= -DBOOT_ELF64 18 .else 19 COPTS= -Os -mcpu=i386 20 .endif 21 COPTS+= -ffreestanding 22 23 I386_STAND_DIR?= $S/arch/i386/stand 24 25 .PATH: ${I386_STAND_DIR}/lib/crt/bootsect ${I386_STAND_DIR}/lib 26 # ensure the stuff we need to load all of 'biosboot' in in the first few 27 # sectors, and that anything that goes to real mode is in the first 64k. 28 # (prot_to_real will bleat if the return address is >64k) 29 BSSTART= start_bootsect.o fraglist.o bootsectmain.o biosdisk_ll.o \ 30 bios_disk.o diskbuf.o \ 31 biosdelay.o biosgetrtc.o biosmca.o biosmem.o biosmemx.o \ 32 biosreboot.o conio.o 33 34 .PATH: ${I386_STAND_DIR}/lib/crt/rom 35 ROMSTART= start_rom.o 36 GENPROMDIR= ${I386_STAND_DIR}/genprom 37 GENPROMOBJDIR!= cd ${GENPROMDIR} && ${PRINTOBJDIR} 38 GENPROM= ${GENPROMOBJDIR}/genprom 39 40 .PATH: ${I386_STAND_DIR}/lib/crt/dos 41 DOSSTART= start_dos.o doscommain.o 42 43 .PATH: ${I386_STAND_DIR}/lib/crt/pxe 44 PXESTART= start_pxe.o 45 46 CPPFLAGS += -nostdinc -I${.OBJDIR} -I$S -I${I386_STAND_DIR}/lib -I$S/lib/libsa 47 CPPFLAGS+= -D_STANDALONE 48 49 # XXX 50 .if ${MACHINE_ARCH} == "x86_64" 51 CPPFLAGS+=-m32 52 LD+=-m elf_i386 53 LIBKERN_ARCH=i386 54 KERNMISCMAKEFLAGS="LIBKERN_ARCH=i386" 55 .endif 56 57 CLEANFILES+= ${STARTFILE} vers.c ${BASE}.list 58 SRCS+= vers.c 59 60 .if !make(obj) && !make(clean) && !make(cleandir) 61 .BEGIN: machine 62 .NOPATH: machine 63 .endif 64 65 realdepend realall: machine 66 CLEANFILES+= machine 67 68 machine:: 69 -rm -f $@ 70 ln -s $S/arch/i386/include $@ 71 72 ${OBJS} ${BSSTART} ${ROMSTART} ${DOSSTART} ${PXESTART}: machine 73 74 ### find out what to use for libkern 75 KERN_AS= library 76 .include "${S}/lib/libkern/Makefile.inc" 77 LIBKERN= ${KERNLIB} 78 79 ### find out what to use for libz 80 Z_AS= library 81 .include "${S}/lib/libz/Makefile.inc" 82 LIBZ= ${ZLIB} 83 84 ### find out what to use for libsa 85 SA_AS= library 86 SAMISCMAKEFLAGS+="SA_USE_LOADFILE=yes" 87 .include "${S}/lib/libsa/Makefile.inc" 88 LIBSA= ${SALIB} 89 90 ### find out what to use for libi386 91 I386DIR= ${I386_STAND_DIR}/lib 92 .include "${I386DIR}/Makefile.inc" 93 LIBI386= ${I386LIB} 94 95 cleandir distclean: cleanlibdir 96 97 cleanlibdir: 98 rm -rf lib 99 100 .if ${OBJECT_FMT} == "ELF" 101 LDFLAGS=-M -e start # -N does not work properly. 102 .else 103 LDFLAGS=-N -M -e _start 104 .endif 105 106 LIBLIST=${LIBI386} ${LIBSA} ${LIBZ} ${LIBSA} ${LIBKERN} ${LIBI386} ${LIBSA} 107 108 vers.c: ${VERSIONFILE} ${SOURCES} 109 sh ${S}conf/newvers_stand.sh ${.ALLSRC} 'i386' ${NEWVERSWHAT} 110 111 CLEANFILES+= ${BASE}.sym 112 ${BASE}.sym: ${STARTFILE} ${OBJS} ${LIBSA} ${LIBZ} ${LIBKERN} ${LIBI386} 113 @# A default link has a 4k gap between the rodata and data. 114 @# We don't need it here - and are short of space! 115 @# The -N option might work - but it puts the code at offset 116 @# 0x80 in the file. 117 @# Get linker to tell us its link script and remove the line. 118 @rm -f ${BASE}.ldscript 119 @ ${LD} --verbose >${BASE}.ldscript 120 @ printf '%b' "1,/^===/d\nd\nd\n/ALIGN(0x1000)/\nd\n/^===/\nd\nwq\n" \ 121 | ed -s ${BASE}.ldscript >/dev/null 122 ${LD} -o ${BASE}.sym ${LDFLAGS} -Ttext ${RELOC} -T ${BASE}.ldscript \ 123 ${STARTFILE} ${OBJS} ${LIBLIST} >${BASE}.list 124 @# The code, bss, data and stack are restricted to one 64k segment. 125 @# Check there is a 'moderate' amount (4k) of stack space. 126 @# 2k isn't enough, 3.5k might be (but harder to test for). 127 @# If the stack is too small hair starts being pulled out. 128 @ grep '^[ 0x]*[a-e].*PROVIDE (end, .)$$' ${BASE}.list >/dev/null || { \ 129 echo "*** Less that 4k stack space in biosboot" >&2; \ 130 rm -f ${BASE}.sym; \ 131 false; } 132 133 CLEANFILES+= ${BASE}.rom 134 ${BASE}.rom: ${STARTFILE} ${OBJS} ${LIBSA} ${LIBZ} ${LIBKERN} ${LIBI386} 135 ${LD} -o ${BASE}.sym ${LDFLAGS} -Ttext ${RELOC} ${STARTFILE} ${OBJS} \ 136 ${LIBLIST} >${BASE}.list 137 ${OBJCOPY} -O binary ${BASE}.sym ${BASE}.bin 138 ${GENPROM} ${ROM_SIZE} < ${BASE}.bin > ${BASE}.rom || \ 139 rm -f ${BASE}.rom 140 rm -f ${BASE}.bin 141 142 CLEANFILES+= ${BASE}.com 143 ${BASE}.com: ${STARTFILE} ${OBJS} ${LIBSA} ${LIBZ} ${LIBKERN} ${LIBI386} 144 ${LD} -o ${BASE}.sym ${LDFLAGS} -Ttext ${RELOC} ${STARTFILE} ${OBJS} \ 145 ${LIBLIST} >${BASE}.list 146 ${OBJCOPY} -O binary ${BASE}.sym ${BASE}.com 147 148 CLEANFILES+= ${BASE}.bin 149 ${BASE}.bin: ${STARTFILE} ${OBJS} ${LIBSA} ${LIBZ} ${LIBKERN} ${LIBI386} 150 ${LD} -o ${BASE}.sym ${LDFLAGS} -Ttext ${RELOC} ${STARTFILE} ${OBJS} \ 151 ${LIBLIST} > ${BASE}.list 152 ${OBJCOPY} -O binary ${BASE}.sym ${BASE}.bin 153 154 .include <bsd.prog.mk> 155
Indexes created Sat Oct 18 08:10:09 GMT 2025