xref: /netbsd-src/sys/arch/i386/stand/boot/Makefile.boot (revision 33881f779a77dce6440bdc44610d94de75bebefe) 
1# $NetBSD: Makefile.boot,v 1.73 2019/09/13 02:19:45 manu Exp $
2
3S=	${.CURDIR}/../../../../..
4
5NOMAN=
6NOLIBCSANITIZER=
7NOSANITIZER=
8NOPIE=
9PROG?= boot
10NEWVERSWHAT?= "BIOS Boot"
11
12AFLAGS.biosboot.S= ${${ACTIVE_CC} == "clang":?-no-integrated-as:}
13
14SOURCES?= biosboot.S boot2.c conf.c devopen.c exec.c \
15	  exec_multiboot1.c exec_multiboot2.c
16SRCS= ${SOURCES}
17
18.include <bsd.init.mk>
19
20STRIPFLAG=	# nothing
21
22LIBCRT0=	# nothing
23LIBCRTI=	# nothing
24LIBCRTBEGIN=	# nothing
25LIBCRTEND=	# nothing
26LIBC=		# nothing
27
28BINDIR=/usr/mdec
29BINMODE=444
30
31.PATH:	${.CURDIR}/.. ${.CURDIR}/../../lib
32
33LDFLAGS+= -nostdlib -Wl,-N -Wl,-e,boot_start
34CPPFLAGS+= -I ${.CURDIR}/..  -I ${.CURDIR}/../../lib -I ${S}/lib/libsa
35CPPFLAGS+= -I ${.OBJDIR}
36# Make sure we override any optimization options specified by the user
37COPTS=  -Os
38
39.if ${MACHINE_ARCH} == "x86_64"
40LDFLAGS+=  -Wl,-m,elf_i386
41AFLAGS+=   -m32
42CPUFLAGS=  -m32
43LIBKERN_ARCH=i386
44KERNMISCMAKEFLAGS="LIBKERN_ARCH=i386"
45.else
46CPUFLAGS=  -march=i386 -mtune=i386
47.endif
48
49CFLAGS+=   -mno-sse -mno-sse2 -mno-sse3
50
51COPTS+=    -ffreestanding
52CFLAGS+= -Wall -Wmissing-prototypes -Wstrict-prototypes
53CPPFLAGS+= -nostdinc -D_STANDALONE
54CPPFLAGS+= -I$S
55
56CPPFLAGS+= -DSUPPORT_PS2
57CPPFLAGS+= -DDIRECT_SERIAL
58CPPFLAGS+= -DSUPPORT_SERIAL=boot_params.bp_consdev
59
60CPPFLAGS+= -DCONSPEED=boot_params.bp_conspeed
61CPPFLAGS+= -DCONSADDR=boot_params.bp_consaddr
62CPPFLAGS+= -DCONSOLE_KEYMAP=boot_params.bp_keymap
63
64CPPFLAGS+= -DSUPPORT_CD9660
65CPPFLAGS+= -DSUPPORT_USTARFS
66CPPFLAGS+= -DSUPPORT_DOSFS
67CPPFLAGS+= -DSUPPORT_EXT2FS
68#CPPFLAGS+= -DSUPPORT_MINIXFS3
69CPPFLAGS+= -DPASS_BIOSGEOM
70CPPFLAGS+= -DPASS_MEMMAP
71#CPPFLAGS+= -DBOOTPASSWD
72CPPFLAGS+= -DEPIA_HACK
73#CPPFLAGS+= -DDEBUG_MEMSIZE
74#CPPFLAGS+= -DBOOT_MSG_COM0
75CPPFLAGS+= -DLIBSA_ENABLE_LS_OP
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=0x40000 -DHEAP_LIMIT=0x70000
81SAMISCCPPFLAGS+= -DLIBSA_PRINTF_LONGLONG_SUPPORT
82SAMISCMAKEFLAGS+= SA_USE_CREAD=yes	# Read compressed kernels
83SAMISCMAKEFLAGS+= SA_INCLUDE_NET=no	# Netboot via TFTP, NFS
84
85CPPFLAGS+=	-Wno-pointer-sign
86
87# CPPFLAGS+= -DBOOTXX_RAID1_SUPPORT
88
89I386_STAND_DIR?= $S/arch/i386/stand
90
91### find out what to use for libi386
92I386DIR= ${I386_STAND_DIR}/lib
93.include "${I386DIR}/Makefile.inc"
94LIBI386= ${I386LIB}
95
96### find out what to use for libsa
97SA_AS= library
98SAMISCMAKEFLAGS+="SA_USE_LOADFILE=yes"
99SAMISCMAKEFLAGS+="SA_ENABLE_LS_OP=yes"
100.include "${S}/lib/libsa/Makefile.inc"
101LIBSA= ${SALIB}
102
103### find out what to use for libkern
104KERN_AS= library
105.include "${S}/lib/libkern/Makefile.inc"
106LIBKERN= ${KERNLIB}
107
108### find out what to use for libz
109Z_AS= library
110.include "${S}/lib/libz/Makefile.inc"
111LIBZ= ${ZLIB}
112
113LDSCRIPT ?= $S/arch/i386/conf/stand.ldscript
114
115cleandir distclean: .WAIT cleanlibdir
116
117cleanlibdir:
118	-rm -rf lib
119
120LIBLIST= ${LIBI386} ${LIBSA} ${LIBZ} ${LIBKERN} ${LIBI386} ${LIBSA}
121# LIBLIST= ${LIBSA} ${LIBKERN} ${LIBI386} ${LIBSA} ${LIBZ} ${LIBKERN}
122
123CLEANFILES+= ${PROG}.tmp ${PROG}.map ${PROG}.sym
124
125VERSIONMACHINE=x86
126.include "${S}/conf/newvers_stand.mk"
127
128# Anything that calls 'real_to_prot' must have a %pc < 0x10000.
129# We link the program, find the callers (all in libi386), then
130# explicitly pull in the required objects before any other library code.
131${PROG}: ${OBJS} ${LIBLIST} ${LDSCRIPT} ${.CURDIR}/../Makefile.boot
132	${_MKTARGET_LINK}
133	bb="$$( ${CC} -o ${PROG}.sym ${LDFLAGS} -Wl,-Ttext,0 -Wl,-cref \
134	    ${OBJS} ${LIBLIST} | ( \
135		while read symbol file; do \
136			[ -z "$$file" ] && continue; \
137			[ "$$symbol" = real_to_prot ] && break; \
138		done; \
139		while \
140			oifs="$$IFS"; \
141			IFS='()'; \
142			set -- $$file; \
143			IFS="$$oifs"; \
144			[ -n "$$2" ] && echo "${I386DST}/$$2"; \
145			read file rest && [ -z "$$rest" ]; \
146		do :; \
147		done; \
148	) )"; \
149	${CC} -o ${PROG}.sym ${LDFLAGS} -Wl,-Ttext,0 -T ${LDSCRIPT} \
150		-Wl,-Map,${PROG}.map -Wl,-cref ${OBJS} $$bb ${LIBLIST}
151	${OBJCOPY} -O binary ${PROG}.sym ${PROG}
152
153.include <bsd.prog.mk>
154KLINK_MACHINE=	i386
155.include <bsd.klinks.mk>
156