Makefile.landisk revision 1.38 
1#	$OpenBSD: Makefile.landisk,v 1.38 2010/12/02 04:35:02 deraadt Exp $
2
3# For instructions on building kernels consult the config(8) and options(4)
4# manual pages.
5#
6# N.B.: NO DEPENDENCIES ON FOLLOWING FLAGS ARE VISIBLE TO MAKEFILE
7#	IF YOU CHANGE THE DEFINITION OF ANY OF THESE RECOMPILE EVERYTHING
8# DEBUG is set to -g by config if debugging is requested (config -g).
9# PROF is set to -pg by config if profiling is requested (config -p).
10
11.include <bsd.own.mk>
12
13MKDEP?=	mkdep
14SIZE?=	size
15STRIP?=	strip
16
17# source tree is located via $S relative to the compilation directory
18.ifndef S
19S!=	cd ../../../..; pwd
20.endif
21
22_machdir?=	$S/arch/${_mach}
23_archdir?=	$S/arch/${_arch}
24
25INCLUDES=	-nostdinc -I. -I$S -I$S/arch
26CPPFLAGS=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D__${_mach}__
27CWARNFLAGS=	-Werror -Wall -Wstrict-prototypes -Wmissing-prototypes \
28		-Wno-main -Wno-uninitialized -Wno-format \
29		-Wstack-larger-than-2047
30
31CMACHFLAGS=	-m4-nofpu
32CMACHFLAGS+=	-fno-builtin-printf -fno-builtin-snprintf \
33		-fno-builtin-vsnprintf -fno-builtin-log \
34		-fno-builtin-log2 -fno-builtin-malloc 
35.if ${IDENT:M-DNO_PROPOLICE}
36CMACHFLAGS+=	-fno-stack-protector
37.endif
38
39COPTS?=		-O2
40CFLAGS=		${DEBUG} ${CWARNFLAGS} ${CMACHFLAGS} ${COPTS} ${PIPE}
41AFLAGS=		-D_LOCORE -x assembler-with-cpp ${CMACHFLAGS}
42LINKFLAGS=	-N -Ttext 0x8c002000 -e start --warn-common
43
44.if ${IDENT:M-DDDB_STRUCT}
45DB_STRUCTINFO=	db_structinfo.h
46.else
47DB_STRUCTINFO=
48.endif
49
50HOSTCC?=	${CC}
51HOSTED_CPPFLAGS=${CPPFLAGS:S/^-nostdinc$//}
52HOSTED_CFLAGS=	${CFLAGS}
53HOSTED_C=	${HOSTCC} ${HOSTED_CFLAGS} ${HOSTED_CPPFLAGS} -c $<
54
55NORMAL_C_NOP=	${CC} ${CFLAGS} ${CPPFLAGS} -c $<
56NORMAL_C=	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
57NORMAL_S=	${CC} ${AFLAGS} ${CPPFLAGS} -c $<
58
59%OBJS
60
61%CFILES
62
63%SFILES
64
65# load lines for config "xxx" will be emitted as:
66# xxx: ${SYSTEM_DEP} swapxxx.o
67#	${SYSTEM_LD_HEAD}
68#	${SYSTEM_LD} swapxxx.o
69#	${SYSTEM_LD_TAIL}
70SYSTEM_OBJ=	locore.o param.o ioconf.o vers.o ${OBJS}
71SYSTEM_DEP=	Makefile ${SYSTEM_OBJ}
72SYSTEM_LD_HEAD=	@rm -f $@
73SYSTEM_LD=	@echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}'; \
74		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ}
75SYSTEM_LD_TAIL=	@${SIZE} $@; chmod 755 $@
76
77DEBUG?=
78.if ${DEBUG} == "-g"
79LINKFLAGS+=	-X
80STRIPFLAGS=	-g -x
81SYSTEM_LD_TAIL+=; \
82		echo mv $@ $@.gdb; rm -f $@.gdb; mv $@ $@.gdb; \
83		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
84		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
85.else
86LINKFLAGS+=	-S -x
87.endif
88
89%LOAD
90
91assym.h: $S/kern/genassym.sh Makefile \
92	 ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf
93	cat ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf | \
94	    sh $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} | \
95	    sort -u > assym.h.tmp && \
96	    mv -f assym.h.tmp assym.h
97
98param.c: $S/conf/param.c
99	rm -f param.c
100	cp $S/conf/param.c .
101
102param.o: param.c Makefile
103	${NORMAL_C}
104
105mcount.o: $S/lib/libkern/mcount.c Makefile
106	${NORMAL_C_NOP}
107
108ioconf.o: ioconf.c
109	${NORMAL_C}
110
111vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP}
112	sh $S/conf/newvers.sh
113	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
114
115clean::
116	rm -f eddep *bsd *bsd.gdb tags *.[io] [a-z]*.s \
117	    [Ee]rrs linterrs assym.h ${DB_STRUCTINFO}
118
119lint:
120	@lint -hbxncez -Dvolatile= ${CPPFLAGS} -UKGDB \
121	    ${CFILES} ioconf.c param.c | \
122	    grep -v 'static function .* unused'
123
124tags:
125	@echo "see $S/kern/Makefile for tags"
126
127AFILES=	${_machdir}/${_mach}/locore.S
128depend:: .depend
129.depend: ${AFILES} param.c ioconf.c ${CFILES} ${SFILES} assym.h ${DB_STRUCTINFO}
130	${MKDEP} ${AFLAGS} ${CPPFLAGS} ${AFILES}
131	${MKDEP} -a ${CFLAGS} ${CPPFLAGS} param.c ioconf.c ${CFILES}
132.if !empty(SFILES)
133	${MKDEP} -a ${AFLAGS} ${CPPFLAGS} ${SFILES}
134.endif
135	cat ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf | \
136	    sh $S/kern/genassym.sh ${MKDEP} -f assym.dep ${CFLAGS} ${CPPFLAGS}
137	@sed -e 's/.*\.o: /assym.h: /' -e 's/\/tmp\/genassym_c.[^ ]*//' \
138	    < assym.dep >> .depend
139	@rm -f assym.dep
140
141db_structinfo.h: $S/ddb/db_structinfo.c $S/ddb/parse_structinfo.awk
142	${CC} ${CFLAGS} ${CPPFLAGS} -gstabs -c $S/ddb/db_structinfo.c
143	objdump -g db_structinfo.o | awk -f $S/ddb/parse_structinfo.awk > $@
144	rm -f db_structinfo.o
145
146locore.o: ${_machdir}/${_mach}/locore.S assym.h
147locore_subr.o vectors.o in_cksum.o: assym.h
148
149# The install target can be redefined by putting a
150# install-kernel-${MACHINE_NAME} target into /etc/mk.conf
151MACHINE_NAME!=  uname -n
152install: install-kernel-${MACHINE_NAME}
153.if !target(install-kernel-${MACHINE_NAME}})
154install-kernel-${MACHINE_NAME}:
155	rm -f /obsd
156	ln /bsd /obsd
157	cp bsd /nbsd
158	mv /nbsd /bsd
159.endif
160
161%RULES
162