xref: /netbsd-src/sys/arch/i386/stand/boot/Makefile.boot (revision e77448e07be3174235c13f58032a0d6d0ab7638d) 
1# $NetBSD: Makefile.boot,v 1.32 2008/04/05 18:21:34 tsutsui Exp $
2
3S=	${.CURDIR}/../../../../../
4
5NOMAN=
6BINDIR= /usr/mdec
7BINMODE= 0444
8PROG?= boot
9NEWVERSWHAT?= "BIOS Boot"
10VERSIONFILE?= ${.CURDIR}/../version
11
12SOURCES?= biosboot.S boot2.c conf.c devopen.c exec.c
13SRCS= ${SOURCES}
14.if !make(depend)
15SRCS+= vers.c
16.endif
17
18.include <bsd.own.mk>
19
20STRIPFLAG=	# nothing
21
22LIBCRT0=	# nothing
23LIBCRTBEGIN=	# nothing
24LIBCRTEND=	# nothing
25LIBC=		# nothing
26
27BINDIR=/usr/mdec
28BINMODE=444
29
30.PATH:	${.CURDIR}/.. ${.CURDIR}/../../lib
31
32LDFLAGS+= -nostdlib -Wl,-N -Wl,-e,boot_start
33# CPPFLAGS+= -D__daddr_t=int32_t
34CPPFLAGS+= -I ${.CURDIR}/..  -I ${.CURDIR}/../../lib -I ${S}/lib/libsa
35CPPFLAGS+= -I ${.OBJDIR}
36#CPPFLAGS+= -DDEBUG_MEMSIZE
37
38# Make sure we override any optimization options specified by the user
39COPTS=  -Os
40
41.if ${MACHINE} == "amd64"
42LDFLAGS+=  -Wl,-m,elf_i386
43AFLAGS+=   -m32
44CPUFLAGS=  -m32
45LIBKERN_ARCH=i386
46KERNMISCMAKEFLAGS="LIBKERN_ARCH=i386"
47.else
48.if ${HAVE_GCC} == 3
49CPUFLAGS=  -mcpu=i386
50.else
51CPUFLAGS=  -march=i386 -mtune=i386
52.endif
53.endif
54
55COPTS+=    -ffreestanding
56CFLAGS+= -Wall -Wmissing-prototypes -Wstrict-prototypes
57CPPFLAGS+= -nostdinc -D_STANDALONE
58CPPFLAGS+= -I$S
59
60CPPFLAGS+= -DSUPPORT_PS2
61CPPFLAGS+= -DDIRECT_SERIAL
62CPPFLAGS+= -DSUPPORT_SERIAL=boot_params.bp_consdev
63
64CPPFLAGS+= -DCONSPEED=boot_params.bp_conspeed
65CPPFLAGS+= -DCONSADDR=boot_params.bp_consaddr
66CPPFLAGS+= -DCONSOLE_KEYMAP=boot_params.bp_keymap
67
68CPPFLAGS+= -DSUPPORT_CD9660
69CPPFLAGS+= -DSUPPORT_USTARFS
70CPPFLAGS+= -DSUPPORT_DOSFS
71#CPPFLAGS+= -DSUPPORT_EXT2FS
72CPPFLAGS+= -DPASS_BIOSGEOM
73CPPFLAGS+= -DPASS_MEMMAP
74#CPPFLAGS+= -DBOOTPASSWD
75CPPFLAGS+= -DEPIA_HACK
76
77# The biosboot code is linked to 'virtual' address of zero and is
78# loaded at physical address 0x10000.
79# XXX The heap values should be determined from _end.
80SAMISCCPPFLAGS+= -DHEAP_START=0x20000 -DHEAP_LIMIT=0x50000
81SAMISCMAKEFLAGS+= SA_USE_CREAD=yes	# Read compressed kernels
82SAMISCMAKEFLAGS+= SA_INCLUDE_NET=no	# Netboot via TFTP, NFS
83
84.if ${HAVE_GCC} == 4
85CPPFLAGS+=	-Wno-pointer-sign
86.endif
87
88# CPPFLAGS+= -DBOOTXX_RAID1_SUPPORT
89
90I386_STAND_DIR?= $S/arch/i386/stand
91
92CLEANFILES+= machine x86
93
94.if !make(obj) && !make(clean) && !make(cleandir)
95.BEGIN:
96	-rm -f machine && ln -s $S/arch/i386/include machine
97	-rm -f x86 && ln -s $S/arch/x86/include x86
98.ifdef LIBOBJ
99	-rm -f lib && ln -s ${LIBOBJ}/lib lib
100	mkdir -p ${LIBOBJ}/lib
101.endif
102.endif
103
104### find out what to use for libi386
105I386DIR= ${I386_STAND_DIR}/lib
106.include "${I386DIR}/Makefile.inc"
107LIBI386= ${I386LIB}
108
109### find out what to use for libsa
110SA_AS= library
111SAMISCMAKEFLAGS+="SA_USE_LOADFILE=yes"
112.include "${S}/lib/libsa/Makefile.inc"
113LIBSA= ${SALIB}
114
115### find out what to use for libkern
116KERN_AS= library
117.include "${S}/lib/libkern/Makefile.inc"
118LIBKERN= ${KERNLIB}
119
120### find out what to use for libz
121Z_AS= library
122.include "${S}/lib/libz/Makefile.inc"
123LIBZ= ${ZLIB}
124
125
126cleandir distclean: cleanlibdir
127
128cleanlibdir:
129	-rm -rf lib
130
131LIBLIST= ${LIBI386} ${LIBSA} ${LIBZ} ${LIBKERN} ${LIBI386} ${LIBSA}
132# LIBLIST= ${LIBSA} ${LIBKERN} ${LIBI386} ${LIBSA} ${LIBZ} ${LIBKERN}
133
134CLEANFILES+= ${PROG}.tmp ${PROG}.map vers.c
135
136vers.c: ${VERSIONFILE} ${SOURCES} ${LIBLIST} ${.CURDIR}/../Makefile.boot
137	${HOST_SH} ${S}conf/newvers_stand.sh ${VERSIONFILE} x86 ${NEWVERSWHAT}
138
139# Anything that calls 'real_to_prot' must have a %pc < 0x10000.
140# We link the program, find the callers (all in libi386), then
141# explicitely pull in the required objects before any other library code.
142${PROG}: ${OBJS} ${LIBLIST} ${.CURDIR}/../Makefile.boot
143	${_MKTARGET_LINK}
144	bb="$$( ${CC} -o ${PROG}.tmp ${LDFLAGS} -Wl,-Ttext,0 -Wl,-cref \
145	    ${OBJS} ${LIBLIST} | ( \
146		while read symbol file; do \
147			[ -z "$$file" ] && continue; \
148			[ "$$symbol" = real_to_prot ] && break; \
149		done; \
150		while \
151			oifs="$$IFS"; \
152			IFS='()'; \
153			set -- $$file; \
154			IFS="$$oifs"; \
155			[ -n "$$2" ] && echo "${I386DST}/$$2"; \
156			read file rest && [ -z "$$rest" ]; \
157		do :; \
158		done; \
159	) )"; \
160	${CC} -o ${PROG}.tmp ${LDFLAGS} -Wl,-Ttext,0 \
161		-Wl,-Map,${PROG}.map -Wl,-cref ${OBJS} $$bb ${LIBLIST}
162	${OBJCOPY} -O binary ${PROG}.tmp ${PROG}
163	rm -f ${PROG}.tmp
164
165.include <bsd.prog.mk>
166