xref: /freebsd/share/mk/sys.mk (revision 0b3105a37d7adcadcb720112fed4dc4e8040be99) 
1#	from: @(#)sys.mk	8.2 (Berkeley) 3/21/94
2# $FreeBSD$
3
4unix		?=	We run FreeBSD, not UNIX.
5.FreeBSD	?=	true
6
7.if !defined(%POSIX)
8#
9# MACHINE_CPUARCH defines a collection of MACHINE_ARCH.  Machines with
10# the same MACHINE_ARCH can run each other's binaries, so it necessarily
11# has word size and endian swizzled in.  However, support files for
12# these machines often are shared amongst all combinations of size
13# and/or endian.  This is called MACHINE_CPU in NetBSD, but that's used
14# for something different in FreeBSD.
15#
16MACHINE_CPUARCH=${MACHINE_ARCH:C/mips(n32|64)?(el)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/:C/riscv64/riscv/}
17.endif
18
19
20# Some options we need now
21__DEFAULT_NO_OPTIONS= \
22	DIRDEPS_BUILD \
23	DIRDEPS_CACHE
24
25__DEFAULT_DEPENDENT_OPTIONS= \
26	AUTO_OBJ/DIRDEPS_BUILD \
27	META_MODE/DIRDEPS_BUILD \
28	STAGING/DIRDEPS_BUILD \
29	SYSROOT/DIRDEPS_BUILD
30
31__ENV_ONLY_OPTIONS:= \
32	${__DEFAULT_NO_OPTIONS} \
33	${__DEFAULT_YES_OPTIONS} \
34	${__DEFAULT_DEPENDENT_OPTIONS:H}
35
36# early include for customization
37# see local.sys.mk below
38# Not included when building in fmake compatibility mode (still needed
39# for older system support)
40.if defined(.PARSEDIR)
41.sinclude <local.sys.env.mk>
42
43.include <bsd.mkopt.mk>
44
45.if ${MK_DIRDEPS_BUILD} == "yes"
46.sinclude <meta.sys.mk>
47.elif ${MK_META_MODE} == "yes" && defined(.MAKEFLAGS) && ${.MAKEFLAGS:M-B} == ""
48.MAKE.MODE= meta verbose
49.if !exists(/dev/filemon)
50.MAKE.MODE+= nofilemon
51.endif
52.endif
53.MAKE.MODE?= normal
54
55.if ${MK_AUTO_OBJ} == "yes"
56# This needs to be done early - before .PATH is computed
57# Don't do this for 'make showconfig' as it enables all options where meta mode
58# is not expected.
59.if !make(showconfig)
60.sinclude <auto.obj.mk>
61.endif
62.endif
63.else # bmake
64.include <bsd.mkopt.mk>
65.endif
66
67# If the special target .POSIX appears (without prerequisites or
68# commands) before the first noncomment line in the makefile, make shall
69# process the makefile as specified by the Posix 1003.2 specification.
70# make(1) sets the special macro %POSIX in this case (to the actual
71# value "1003.2", for what it's worth).
72#
73# The rules below use this macro to distinguish between Posix-compliant
74# and default behaviour.
75#
76# This functionality is currently broken, since make(1) processes sys.mk
77# before reading any other files, and consequently has no opportunity to
78# set the %POSIX macro before we read this point.
79
80.if defined(%POSIX)
81.SUFFIXES:	.o .c .y .l .a .sh .f
82.else
83.SUFFIXES:	.out .a .ln .o .c .cc .cpp .cxx .C .m .F .f .e .r .y .l .S .asm .s .cl .p .h .sh
84.endif
85
86AR		?=	ar
87.if defined(%POSIX)
88ARFLAGS		?=	-rv
89.else
90ARFLAGS		?=	-crD
91.endif
92RANLIB		?=	ranlib
93.if !defined(%POSIX)
94RANLIBFLAGS	?=	-D
95.endif
96
97AS		?=	as
98AFLAGS		?=
99ACFLAGS		?=
100
101.if defined(%POSIX)
102CC		?=	c89
103CFLAGS		?=	-O
104.else
105CC		?=	cc
106.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
107CFLAGS		?=	-O -pipe
108.else
109CFLAGS		?=	-O2 -pipe
110.endif
111.if defined(NO_STRICT_ALIASING)
112CFLAGS		+=	-fno-strict-aliasing
113.endif
114.endif
115PO_CFLAGS	?=	${CFLAGS}
116
117# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
118# read-only files as non-root by passing -f.
119CP		?=	cp -f
120
121CPP		?=	cpp
122
123# C Type Format data is required for DTrace
124CTFFLAGS	?=	-L VERSION
125
126CTFCONVERT	?=	ctfconvert
127CTFMERGE	?=	ctfmerge
128
129.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
130CTFFLAGS	+=	-g
131.endif
132
133CXX		?=	c++
134CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
135PO_CXXFLAGS	?=	${CXXFLAGS}
136
137DTRACE		?=	dtrace
138DTRACEFLAGS	?=	-C -x nolibs
139
140.if empty(.MAKEFLAGS:M-s)
141ECHO		?=	echo
142ECHODIR		?=	echo
143.else
144ECHO		?=	true
145.if ${.MAKEFLAGS:M-s} == "-s"
146ECHODIR		?=	echo
147.else
148ECHODIR		?=	true
149.endif
150.endif
151
152.if ${.MAKEFLAGS:M-N}
153# bmake -N is supposed to skip executing anything but it does not skip
154# exeucting '+' commands.  The '+' feature is used where .MAKE
155# is not safe for the entire target.  -N is intended to skip building sub-makes
156# so it executing '+' commands is not right.  Work around the bug by not
157# setting '+' when -N is used.
158_+_		?=
159.else
160_+_		?=	+
161.endif
162
163.if defined(%POSIX)
164FC		?=	fort77
165FFLAGS		?=	-O 1
166.else
167FC		?=	f77
168FFLAGS		?=	-O
169.endif
170EFLAGS		?=
171
172INSTALL		?=	install
173
174LEX		?=	lex
175LFLAGS		?=
176
177LD		?=	ld
178LDFLAGS		?=				# LDFLAGS is for CC,
179_LDFLAGS	=	${LDFLAGS:S/-Wl,//g}	# strip -Wl, for LD
180
181LINT		?=	lint
182LINTFLAGS	?=	-cghapbx
183LINTKERNFLAGS	?=	${LINTFLAGS}
184LINTOBJFLAGS	?=	-cghapbxu -i
185LINTOBJKERNFLAGS?=	${LINTOBJFLAGS}
186LINTLIBFLAGS	?=	-cghapbxu -C ${LIB}
187
188MAKE		?=	make
189
190.if !defined(%POSIX)
191NM		?=	nm
192NMFLAGS		?=
193
194OBJC		?=	cc
195OBJCFLAGS	?=	${OBJCINCLUDES} ${CFLAGS} -Wno-import
196
197OBJCOPY		?=	objcopy
198
199OBJDUMP		?=	objdump
200
201PC		?=	pc
202PFLAGS		?=
203
204RC		?=	f77
205RFLAGS		?=
206.endif
207
208SHELL		?=	sh
209
210.if !defined(%POSIX)
211SIZE		?=	size
212.endif
213
214YACC		?=	yacc
215.if defined(%POSIX)
216YFLAGS		?=
217.else
218YFLAGS		?=	-d
219.endif
220
221.if defined(%POSIX)
222
223# Posix 1003.2 mandated rules
224#
225# Quoted directly from the Posix 1003.2 draft, only the macros
226# $@, $< and $* have been replaced by ${.TARGET}, ${.IMPSRC}, and
227# ${.PREFIX}, resp.
228
229# SINGLE SUFFIX RULES
230.c:
231	${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
232
233.f:
234	${FC} ${FFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
235
236.sh:
237	cp -f ${.IMPSRC} ${.TARGET}
238	chmod a+x ${.TARGET}
239
240# DOUBLE SUFFIX RULES
241
242.c.o:
243	${CC} ${CFLAGS} -c ${.IMPSRC}
244
245.f.o:
246	${FC} ${FFLAGS} -c ${.IMPSRC}
247
248.y.o:
249	${YACC} ${YFLAGS} ${.IMPSRC}
250	${CC} ${CFLAGS} -c y.tab.c
251	rm -f y.tab.c
252	mv y.tab.o ${.TARGET}
253
254.l.o:
255	${LEX} ${LFLAGS} ${.IMPSRC}
256	${CC} ${CFLAGS} -c lex.yy.c
257	rm -f lex.yy.c
258	mv lex.yy.o ${.TARGET}
259
260.y.c:
261	${YACC} ${YFLAGS} ${.IMPSRC}
262	mv y.tab.c ${.TARGET}
263
264.l.c:
265	${LEX} ${LFLAGS} ${.IMPSRC}
266	mv lex.yy.c ${.TARGET}
267
268.c.a:
269	${CC} ${CFLAGS} -c ${.IMPSRC}
270	${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
271	rm -f ${.PREFIX}.o
272
273.f.a:
274	${FC} ${FFLAGS} -c ${.IMPSRC}
275	${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
276	rm -f ${.PREFIX}.o
277
278.else
279
280# non-Posix rule set
281
282.sh: .NOMETA
283	cp -fp ${.IMPSRC} ${.TARGET}
284	chmod a+x ${.TARGET}
285
286.c.ln:
287	${LINT} ${LINTOBJFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} || \
288	    touch ${.TARGET}
289
290.cc.ln .C.ln .cpp.ln .cxx.ln:
291	${LINT} ${LINTOBJFLAGS} ${CXXFLAGS:M-[DIU]*} ${.IMPSRC} || \
292	    touch ${.TARGET}
293
294.c:
295	${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
296	${CTFCONVERT_CMD}
297
298.c.o:
299	${CC} ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
300	${CTFCONVERT_CMD}
301
302.cc .cpp .cxx .C:
303	${CXX} ${CXXFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
304
305.cc.o .cpp.o .cxx.o .C.o:
306	${CXX} ${CXXFLAGS} -c ${.IMPSRC} -o ${.TARGET}
307
308.m.o:
309	${OBJC} ${OBJCFLAGS} -c ${.IMPSRC} -o ${.TARGET}
310	${CTFCONVERT_CMD}
311
312.p.o:
313	${PC} ${PFLAGS} -c ${.IMPSRC} -o ${.TARGET}
314	${CTFCONVERT_CMD}
315
316.e .r .F .f:
317	${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} \
318	    -o ${.TARGET}
319
320.e.o .r.o .F.o .f.o:
321	${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} -c ${.IMPSRC} -o ${.TARGET}
322
323.S.o:
324	${CC:N${CCACHE_BIN}} ${CFLAGS} ${ACFLAGS} -c ${.IMPSRC} -o ${.TARGET}
325	${CTFCONVERT_CMD}
326
327.asm.o:
328	${CC:N${CCACHE_BIN}} -x assembler-with-cpp ${CFLAGS} ${ACFLAGS} -c ${.IMPSRC} \
329	    -o ${.TARGET}
330	${CTFCONVERT_CMD}
331
332.s.o:
333	${AS} ${AFLAGS} -o ${.TARGET} ${.IMPSRC}
334	${CTFCONVERT_CMD}
335
336# XXX not -j safe
337.y.o:
338	${YACC} ${YFLAGS} ${.IMPSRC}
339	${CC} ${CFLAGS} -c y.tab.c -o ${.TARGET}
340	rm -f y.tab.c
341	${CTFCONVERT_CMD}
342
343.l.o:
344	${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
345	${CC} ${CFLAGS} -c ${.PREFIX}.tmp.c -o ${.TARGET}
346	rm -f ${.PREFIX}.tmp.c
347	${CTFCONVERT_CMD}
348
349# XXX not -j safe
350.y.c:
351	${YACC} ${YFLAGS} ${.IMPSRC}
352	mv y.tab.c ${.TARGET}
353
354.l.c:
355	${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.TARGET}
356
357.s.out .c.out .o.out:
358	${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
359	${CTFCONVERT_CMD}
360
361.f.out .F.out .r.out .e.out:
362	${FC} ${EFLAGS} ${RFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} \
363	    ${LDLIBS} -o ${.TARGET}
364	rm -f ${.PREFIX}.o
365	${CTFCONVERT_CMD}
366
367# XXX not -j safe
368.y.out:
369	${YACC} ${YFLAGS} ${.IMPSRC}
370	${CC} ${CFLAGS} ${LDFLAGS} y.tab.c ${LDLIBS} -ly -o ${.TARGET}
371	rm -f y.tab.c
372	${CTFCONVERT_CMD}
373
374.l.out:
375	${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
376	${CC} ${CFLAGS} ${LDFLAGS} ${.PREFIX}.tmp.c ${LDLIBS} -ll -o ${.TARGET}
377	rm -f ${.PREFIX}.tmp.c
378	${CTFCONVERT_CMD}
379
380# Pull in global settings.
381__MAKE_CONF?=/etc/make.conf
382.if exists(${__MAKE_CONF})
383.include "${__MAKE_CONF}"
384.endif
385
386# late include for customization
387.sinclude <local.sys.mk>
388
389.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
390SHELL=	${__MAKE_SHELL}
391.SHELL: path=${__MAKE_SHELL}
392.endif
393
394# Tell bmake to expand -V VAR by default
395.MAKE.EXPAND_VARIABLES= yes
396
397# Tell bmake the makefile preference
398.MAKE.MAKEFILE_PREFERENCE= BSDmakefile makefile Makefile
399
400# Tell bmake to always pass job tokens, regardless of target depending on
401# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
402.MAKE.ALWAYS_PASS_JOB_QUEUE= yes
403
404# By default bmake does *not* use set -e
405# when running target scripts, this is a problem for many makefiles here.
406# So define a shell that will do what FreeBSD expects.
407.ifndef WITHOUT_SHELL_ERRCTL
408__MAKE_SHELL?=/bin/sh
409.SHELL: name=sh \
410	quiet="set -" echo="set -v" filter="set -" \
411	hasErrCtl=yes check="set -e" ignore="set +e" \
412	echoFlag=v errFlag=e \
413	path=${__MAKE_SHELL}
414.endif
415
416# Hack for ports compatibility. Historically, ports makefiles have
417# assumed they can examine MACHINE_CPU without including anything
418# because this was automatically included in sys.mk. For /usr/src,
419# this file has moved to being included from bsd.opts.mk. Until all
420# the ports files are modernized, and a reasonable transition
421# period has passed, include it while we're in a ports tree here
422# to preserve historic behavior.
423.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
424.include <bsd.cpu.mk>
425.endif
426
427.endif # ! Posix
428