xref: /openbsd/sys/arch/octeon/conf/Makefile.octeon (revision 09467b48) 
1#	$OpenBSD: Makefile.octeon,v 1.56 2019/11/07 20:42:28 guenther 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?=	ctfstrip
15AS?=	as
16CC?=	cc
17LD?=	ld ${ENDIAN}
18
19AS+=${ENDIAN}
20CC+=${ENDIAN}
21LD+=${ENDIAN}
22
23# source tree is located via $S relative to the compilation directory
24.ifndef S
25S!=	cd ../../../..; pwd
26.endif
27
28_machdir?=	$S/arch/${_mach}
29_archdir?=	$S/arch/${_arch}
30
31INCLUDES=	-nostdinc -I$S -I${.OBJDIR} -I$S/arch
32CPPFLAGS=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D__${_mach}__ -MD -MP
33CWARNFLAGS=	-Werror -Wall -Wimplicit-function-declaration \
34		-Wno-uninitialized -Wno-pointer-sign \
35		-Wframe-larger-than=2047
36
37CMACHFLAGS=	-mno-abicalls ${ABI} -msoft-float -G 0
38CMACHFLAGS+=	-ffreestanding ${NOPIE_FLAGS}
39SORTR=		sort -R
40.if ${IDENT:M-DNO_PROPOLICE}
41CMACHFLAGS+=	-fno-stack-protector
42.endif
43.if ${IDENT:M-DSMALL_KERNEL}
44SORTR=		cat
45COPTS?=		-Oz
46.endif
47.if ${COMPILER_VERSION:Mclang}
48NO_INTEGR_AS=	-no-integrated-as
49CMACHFLAGS+=	-fomit-frame-pointer
50CWARNFLAGS+=	-Wno-address-of-packed-member -Wno-constant-conversion
51.endif
52
53DEBUG?=		-g
54COPTS?=		-O2
55CFLAGS=		${DEBUG} ${CWARNFLAGS} ${CMACHFLAGS} ${COPTS} ${PIPE}
56AFLAGS=		-D_LOCORE -x assembler-with-cpp ${CWARNFLAGS} ${CMACHFLAGS}
57LINKFLAGS=	-e start -T ld.script -Ttext=${LINK_ADDRESS} --warn-common -nopie
58
59HOSTCC?=	${CC}
60HOSTED_CPPFLAGS=${CPPFLAGS:S/^-nostdinc$//}
61HOSTED_CFLAGS=	${CFLAGS}
62HOSTED_C=	${HOSTCC} ${HOSTED_CFLAGS} ${HOSTED_CPPFLAGS} -c $<
63
64NORMAL_C_NOP=	${CC} ${CFLAGS} ${CPPFLAGS} -fno-ret-protector -c $<
65NORMAL_C=	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
66NORMAL_S=	${CC} ${AFLAGS} ${CPPFLAGS} ${PROF} -c $<
67
68%OBJS
69
70%CFILES
71
72%SFILES
73
74# load lines for config "xxx" will be emitted as:
75# xxx: ${SYSTEM_DEP} swapxxx.o
76#	${SYSTEM_LD_HEAD}
77#	${SYSTEM_LD} swapxxx.o
78#	${SYSTEM_LD_TAIL}
79SYSTEM_HEAD=	locore0.o gap.o
80SYSTEM_OBJ=	${SYSTEM_HEAD} ${OBJS} param.o ioconf.o
81SYSTEM_DEP=	Makefile ${SYSTEM_OBJ} ld.script
82SYSTEM_LD_HEAD=	@rm -f $@
83SYSTEM_LD=	@echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_HEAD} vers.o $${OBJS}'; \
84		umask 007; \
85		echo ${OBJS} param.o ioconf.o vers.o | tr " " "\n" | ${SORTR} > lorder; \
86		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_HEAD} `cat lorder`
87SYSTEM_LD_TAIL=	@${SIZE} $@
88
89.if ${DEBUG} == "-g"
90STRIPFLAGS=	-S
91SYSTEM_LD_TAIL+=; umask 007; \
92		echo mv $@ $@.gdb; rm -f $@.gdb; mv $@ $@.gdb; \
93		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
94		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
95.else
96LINKFLAGS+=	-S
97.endif
98
99%LOAD
100
101# cc's -MD puts the source and output paths in the dependency file;
102# since those are temp files here we need to fix it up.  It also
103# puts the file in /tmp, so we use -MF to put it in the current
104# directory as assym.P and then generate assym.d from it with a
105# good target name
106assym.h: $S/kern/genassym.sh Makefile \
107	 ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf
108	cat ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf | \
109	    sh $S/kern/genassym.sh ${CC} ${NO_INTEGR_AS} ${CFLAGS} ${CPPFLAGS} -MF assym.P > assym.h.tmp
110	sed '1s/.*/assym.h: \\/' assym.P > assym.d
111	sort -u assym.h.tmp > assym.h
112
113param.c: $S/conf/param.c
114	rm -f param.c
115	cp $S/conf/param.c .
116
117param.o: param.c Makefile
118	${NORMAL_C}
119
120mcount.o: $S/lib/libkern/mcount.c Makefile
121	${NORMAL_C_NOP}
122
123ioconf.o: ioconf.c
124	${NORMAL_C}
125
126ld.script: ${_machdir}/conf/ld.script
127	cp ${_machdir}/conf/ld.script $@
128
129gapdummy.o:
130	echo '__asm(".section .rodata,\"a\"");' > gapdummy.c
131	${CC} -c ${CFLAGS} ${CPPFLAGS} gapdummy.c -o $@
132
133makegap.sh:
134	cp $S/conf/makegap.sh $@
135
136MAKE_GAP = LD="${LD}" sh makegap.sh 0xefefefef gapdummy.o
137
138gap.o:	Makefile makegap.sh gapdummy.o vers.o
139	${MAKE_GAP}
140
141vers.o: ${SYSTEM_DEP:Ngap.o}
142	sh $S/conf/newvers.sh
143	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
144
145clean:
146	rm -f *bsd *bsd.gdb *.[dio] [a-z]*.s assym.* \
147	    gap.link gapdummy.c ld.script lorder makegap.sh param.c
148
149cleandir: clean
150	rm -f Makefile *.h ioconf.c options machine ${_mach} vers.c
151
152depend obj:
153
154locore0.o: ${_machdir}/${_mach}/locore0.S assym.h
155context.o cp0access.o exception.o locore.o: assym.h
156lcore_access.o lcore_ddb.o lcore_float.o tlbhandler.o: assym.h
157mips64r2.o: assym.h
158
159hardlink-obsd:
160	[[ ! -f /bsd ]] || cmp -s bsd /bsd || ln -f /bsd /obsd
161
162newinstall:
163	install -F -m 700 bsd /bsd && sha256 -h /var/db/kernel.SHA256 /bsd
164
165install: update-link hardlink-obsd newinstall
166
167# pull in the dependency information
168.ifnmake clean
169. for o in ${SYSTEM_OBJ:Ngap.o} assym.h
170.  if exists(${o:R}.d)
171.   include "${o:R}.d"
172.  elif exists($o)
173    .PHONY: $o
174.  endif
175. endfor
176.endif
177
178%RULES
179