Makefile.landisk revision 1.45 
1#	$OpenBSD: Makefile.landisk,v 1.45 2012/08/22 16:58:26 pascal 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
13SIZE?=	size
14STRIP?=	strip
15
16# source tree is located via $S relative to the compilation directory
17.ifndef S
18S!=	cd ../../../..; pwd
19.endif
20
21_machdir?=	$S/arch/${_mach}
22_archdir?=	$S/arch/${_arch}
23
24INCLUDES=	-nostdinc -I. -I$S -I$S/arch
25CPPFLAGS=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D__${_mach}__ -MD -MP
26CWARNFLAGS=	-Werror -Wall -Wstrict-prototypes -Wmissing-prototypes \
27		-Wno-main -Wno-uninitialized -Wno-format \
28		-Wstack-larger-than-2047
29
30CMACHFLAGS=	-m4-nofpu
31CMACHFLAGS+=	-fno-builtin-printf -fno-builtin-snprintf \
32		-fno-builtin-vsnprintf -fno-builtin-log \
33		-fno-builtin-log2 -fno-builtin-malloc ${NOPIE_FLAGS}
34.if ${IDENT:M-DNO_PROPOLICE}
35CMACHFLAGS+=	-fno-stack-protector
36.endif
37
38COPTS?=		-O2
39CFLAGS=		${DEBUG} ${CWARNFLAGS} ${CMACHFLAGS} ${COPTS} ${PIPE}
40AFLAGS=		-D_LOCORE -x assembler-with-cpp ${CMACHFLAGS}
41LINKFLAGS=	-N -Ttext 0x8c002000 -e start --warn-common
42
43.if ${IDENT:M-DDDB_STRUCT}
44DB_STRUCTINFO=	db_structinfo.h
45.else
46DB_STRUCTINFO=
47.endif
48
49HOSTCC?=	${CC}
50HOSTED_CPPFLAGS=${CPPFLAGS:S/^-nostdinc$//}
51HOSTED_CFLAGS=	${CFLAGS}
52HOSTED_C=	${HOSTCC} ${HOSTED_CFLAGS} ${HOSTED_CPPFLAGS} -c $<
53
54NORMAL_C_NOP=	${CC} ${CFLAGS} ${CPPFLAGS} -c $<
55NORMAL_C=	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
56NORMAL_S=	${CC} ${AFLAGS} ${CPPFLAGS} -c $<
57
58%OBJS
59
60%CFILES
61
62%SFILES
63
64# load lines for config "xxx" will be emitted as:
65# xxx: ${SYSTEM_DEP} swapxxx.o
66#	${SYSTEM_LD_HEAD}
67#	${SYSTEM_LD} swapxxx.o
68#	${SYSTEM_LD_TAIL}
69SYSTEM_HEAD=	locore.o param.o ioconf.o
70SYSTEM_OBJ=	${SYSTEM_HEAD} ${OBJS}
71SYSTEM_DEP=	Makefile ${SYSTEM_OBJ}
72SYSTEM_LD_HEAD=	@rm -f $@
73SYSTEM_LD=	@echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_HEAD} vers.o $${OBJS}'; \
74		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_HEAD} vers.o ${OBJS}
75SYSTEM_LD_TAIL=	@${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
91# cc's -MD puts the source and output paths in the dependency file;
92# since those are temp files here we need to fix it up.  It also
93# puts the file in /tmp, so we use -MF to put it in the current
94# directory as assym.P and then generate assym.d from it with a
95# good target name
96assym.h: $S/kern/genassym.sh Makefile \
97	 ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf
98	cat ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf | \
99	    sh $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} -MF assym.P > assym.h.tmp
100	sed '1s/.*/assym.h: \\/' assym.P > assym.d
101	sort -u assym.h.tmp > assym.h
102
103param.c: $S/conf/param.c
104	rm -f param.c
105	cp $S/conf/param.c .
106
107param.o: param.c Makefile
108	${NORMAL_C}
109
110mcount.o: $S/lib/libkern/mcount.c Makefile
111	${NORMAL_C_NOP}
112
113ioconf.o: ioconf.c
114	${NORMAL_C}
115
116vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP}
117	sh $S/conf/newvers.sh
118	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
119
120clean::
121	rm -f eddep *bsd *bsd.gdb tags *.[dio] [a-z]*.s \
122	    [Ee]rrs linterrs assym.h ${DB_STRUCTINFO}
123
124lint:
125	@lint -hbxncez -Dvolatile= ${CPPFLAGS} -UKGDB \
126	    ${CFILES} ioconf.c param.c | \
127	    grep -v 'static function .* unused'
128
129depend:
130	@touch $@
131
132tags:
133	@echo "see $S/kern/Makefile for tags"
134
135db_structinfo.h: $S/ddb/db_structinfo.c $S/ddb/parse_structinfo.awk
136	${CC} ${CFLAGS} ${CPPFLAGS} -MT $@ -gstabs -c $S/ddb/db_structinfo.c
137	objdump -g db_structinfo.o | awk -f $S/ddb/parse_structinfo.awk > $@
138	rm -f db_structinfo.o
139
140locore.o: ${_machdir}/${_mach}/locore.S assym.h
141locore_subr.o vectors.o in_cksum.o: assym.h
142
143# The install target can be redefined by putting a
144# install-kernel-${MACHINE_NAME} target into /etc/mk.conf
145MACHINE_NAME!=  uname -n
146install: install-kernel-${MACHINE_NAME}
147.if !target(install-kernel-${MACHINE_NAME}})
148install-kernel-${MACHINE_NAME}:
149	rm -f /obsd
150	ln /bsd /obsd
151	cp bsd /nbsd
152	mv /nbsd /bsd
153.endif
154
155# pull in the dependency information
156.if !empty(DB_STRUCTINFO) && !exists(${DB_STRUCTINFO})
157 ${SYSTEM_OBJ}: ${DB_STRUCTINFO}
158.endif
159.ifnmake clean
160. for o in ${SYSTEM_OBJ} assym.h ${DB_STRUCTINFO}
161.  if exists(${o:R}.d)
162.   include "${o:R}.d"
163.  elif exists($o)
164    .PHONY: $o
165.  endif
166. endfor
167.endif
168
169%RULES
170