1#	from: @(#)sys.mk	8.2 (Berkeley) 3/21/94
2# $FreeBSD: stable/11/share/mk/sys.mk 330424 2018-03-04 23:34:02Z bdrewery $
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# Disable MK_META_MODE with make -B
46.if ${MK_META_MODE} == "yes" && defined(.MAKEFLAGS) && ${.MAKEFLAGS:M-B}
47MK_META_MODE=	no
48.endif
49
50.if ${MK_DIRDEPS_BUILD} == "yes"
51.sinclude <meta.sys.mk>
52.elif ${MK_META_MODE} == "yes"
53META_MODE+=	meta
54.if empty(.MAKEFLAGS:M-s)
55# verbose will show .MAKE.META.PREFIX for each target.
56META_MODE+=	verbose
57.endif
58.if !defined(NO_META_MISSING)
59META_MODE+=	missing-meta=yes
60.endif
61# silent will hide command output if a .meta file is created.
62.if !defined(NO_SILENT)
63META_MODE+=	silent=yes
64.endif
65.if !exists(/dev/filemon) || defined(NO_FILEMON)
66META_MODE+= nofilemon
67.endif
68# Require filemon data with bmake
69.if empty(META_MODE:Mnofilemon)
70META_MODE+= missing-filemon=yes
71.endif
72.endif
73META_MODE?= normal
74.export META_MODE
75.MAKE.MODE?= ${META_MODE}
76.if !empty(.MAKE.MODE:Mmeta) && !defined(NO_META_IGNORE_HOST)
77# Ignore host file changes that will otherwise cause
78# buildworld -> installworld -> buildworld to rebuild everything.
79# Since the build is self-reliant and bootstraps everything it needs,
80# this should not be a real problem for incremental builds.
81# XXX: This relies on the existing host tools retaining ABI compatibility
82# through upgrades since they won't be rebuilt on header/library changes.
83# Note that these are prefix matching, so /lib matches /libexec.
84.MAKE.META.IGNORE_PATHS+= \
85	${__MAKE_SHELL} \
86	/bin \
87	/lib \
88	/rescue \
89	/sbin \
90	/usr/bin \
91	/usr/include \
92	/usr/lib \
93	/usr/sbin \
94	/usr/share \
95
96.endif
97.if !empty(.MAKE.MODE:Mmeta)
98# We do not want everything out-of-date just because
99# some unrelated shared lib updated this.
100.MAKE.META.IGNORE_PATHS+= /usr/local/etc/libmap.d
101.endif
102
103.if ${MK_AUTO_OBJ} == "yes"
104# This needs to be done early - before .PATH is computed
105# Don't do this for 'make showconfig' as it enables all options where meta mode
106# is not expected.
107.if !make(showconfig) && !make(print-dir)
108.sinclude <auto.obj.mk>
109.endif
110.endif
111.else # bmake
112.include <bsd.mkopt.mk>
113.endif
114
115# If the special target .POSIX appears (without prerequisites or
116# commands) before the first noncomment line in the makefile, make shall
117# process the makefile as specified by the Posix 1003.2 specification.
118# make(1) sets the special macro %POSIX in this case (to the actual
119# value "1003.2", for what it's worth).
120#
121# The rules below use this macro to distinguish between Posix-compliant
122# and default behaviour.
123#
124# This functionality is currently broken, since make(1) processes sys.mk
125# before reading any other files, and consequently has no opportunity to
126# set the %POSIX macro before we read this point.
127
128.if defined(%POSIX)
129.SUFFIXES:	.o .c .y .l .a .sh .f
130.else
131.SUFFIXES:	.out .a .ln .o .c .cc .cpp .cxx .C .m .F .f .e .r .y .l .S .asm .s .cl .p .h .sh
132.endif
133
134AR		?=	ar
135.if defined(%POSIX)
136ARFLAGS		?=	-rv
137.else
138ARFLAGS		?=	-crD
139.endif
140RANLIB		?=	ranlib
141.if !defined(%POSIX)
142RANLIBFLAGS	?=	-D
143.endif
144
145AS		?=	as
146AFLAGS		?=
147ACFLAGS		?=
148
149.if defined(%POSIX)
150CC		?=	c89
151CFLAGS		?=	-O
152.else
153CC		?=	cc
154.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
155CFLAGS		?=	-O -pipe
156.else
157CFLAGS		?=	-O2 -pipe
158.endif
159.if defined(NO_STRICT_ALIASING)
160CFLAGS		+=	-fno-strict-aliasing
161.endif
162.endif
163PO_CFLAGS	?=	${CFLAGS}
164
165# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
166# read-only files as non-root by passing -f.
167CP		?=	cp -f
168
169CPP		?=	cpp
170
171# C Type Format data is required for DTrace
172CTFFLAGS	?=	-L VERSION
173
174CTFCONVERT	?=	ctfconvert
175CTFMERGE	?=	ctfmerge
176
177.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
178CTFFLAGS	+=	-g
179.endif
180
181CXX		?=	c++
182CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
183PO_CXXFLAGS	?=	${CXXFLAGS}
184
185DTRACE		?=	dtrace
186DTRACEFLAGS	?=	-C -x nolibs
187
188.if empty(.MAKEFLAGS:M-s)
189ECHO		?=	echo
190ECHODIR		?=	echo
191.else
192ECHO		?=	true
193.if ${.MAKEFLAGS:M-s} == "-s"
194ECHODIR		?=	echo
195.else
196ECHODIR		?=	true
197.endif
198.endif
199
200.if ${.MAKEFLAGS:M-N}
201# bmake -N is supposed to skip executing anything but it does not skip
202# exeucting '+' commands.  The '+' feature is used where .MAKE
203# is not safe for the entire target.  -N is intended to skip building sub-makes
204# so it executing '+' commands is not right.  Work around the bug by not
205# setting '+' when -N is used.
206_+_		?=
207.else
208_+_		?=	+
209.endif
210
211.if defined(%POSIX)
212FC		?=	fort77
213FFLAGS		?=	-O 1
214.else
215FC		?=	f77
216FFLAGS		?=	-O
217.endif
218EFLAGS		?=
219
220INSTALL		?=	install
221
222LEX		?=	lex
223LFLAGS		?=
224
225LD		?=	ld
226LDFLAGS		?=				# LDFLAGS is for CC, 
227_LDFLAGS	=	${LDFLAGS:S/-Wl,//g}	# strip -Wl, for LD
228
229LINT		?=	lint
230LINTFLAGS	?=	-cghapbx
231LINTKERNFLAGS	?=	${LINTFLAGS}
232LINTOBJFLAGS	?=	-cghapbxu -i
233LINTOBJKERNFLAGS?=	${LINTOBJFLAGS}
234LINTLIBFLAGS	?=	-cghapbxu -C ${LIB}
235
236MAKE		?=	make
237
238.if !defined(%POSIX)
239NM		?=	nm
240NMFLAGS		?=
241
242OBJC		?=	cc
243OBJCFLAGS	?=	${OBJCINCLUDES} ${CFLAGS} -Wno-import
244
245OBJCOPY		?=	objcopy
246
247OBJDUMP		?=	objdump
248
249PC		?=	pc
250PFLAGS		?=
251
252RC		?=	f77
253RFLAGS		?=
254.endif
255
256SHELL		?=	sh
257
258.if !defined(%POSIX)
259SIZE		?=	size
260.endif
261
262YACC		?=	yacc
263.if defined(%POSIX)
264YFLAGS		?=
265.else
266YFLAGS		?=	-d
267.endif
268
269.if defined(%POSIX)
270
271# Posix 1003.2 mandated rules
272#
273# Quoted directly from the Posix 1003.2 draft, only the macros
274# $@, $< and $* have been replaced by ${.TARGET}, ${.IMPSRC}, and
275# ${.PREFIX}, resp.
276
277# SINGLE SUFFIX RULES
278.c:
279	${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
280
281.f:
282	${FC} ${FFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
283
284.sh:
285	cp -f ${.IMPSRC} ${.TARGET}
286	chmod a+x ${.TARGET}
287
288# DOUBLE SUFFIX RULES
289
290.c.o:
291	${CC} ${CFLAGS} -c ${.IMPSRC}
292
293.f.o:
294	${FC} ${FFLAGS} -c ${.IMPSRC}
295
296.y.o:
297	${YACC} ${YFLAGS} ${.IMPSRC}
298	${CC} ${CFLAGS} -c y.tab.c
299	rm -f y.tab.c
300	mv y.tab.o ${.TARGET}
301
302.l.o:
303	${LEX} ${LFLAGS} ${.IMPSRC}
304	${CC} ${CFLAGS} -c lex.yy.c
305	rm -f lex.yy.c
306	mv lex.yy.o ${.TARGET}
307
308.y.c:
309	${YACC} ${YFLAGS} ${.IMPSRC}
310	mv y.tab.c ${.TARGET}
311
312.l.c:
313	${LEX} ${LFLAGS} ${.IMPSRC}
314	mv lex.yy.c ${.TARGET}
315
316.c.a:
317	${CC} ${CFLAGS} -c ${.IMPSRC}
318	${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
319	rm -f ${.PREFIX}.o
320
321.f.a:
322	${FC} ${FFLAGS} -c ${.IMPSRC}
323	${AR} ${ARFLAGS} ${.TARGET} ${.PREFIX}.o
324	rm -f ${.PREFIX}.o
325
326.else
327
328# non-Posix rule set
329
330.sh:
331	cp -f ${.IMPSRC} ${.TARGET}
332	chmod a+x ${.TARGET}
333
334.c.ln:
335	${LINT} ${LINTOBJFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} || \
336	    touch ${.TARGET}
337
338.cc.ln .C.ln .cpp.ln .cxx.ln:
339	${LINT} ${LINTOBJFLAGS} ${CXXFLAGS:M-[DIU]*} ${.IMPSRC} || \
340	    touch ${.TARGET}
341
342.c:
343	${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
344	${CTFCONVERT_CMD}
345
346.c.o:
347	${CC} ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
348	${CTFCONVERT_CMD}
349
350.cc .cpp .cxx .C:
351	${CXX} ${CXXFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
352
353.cc.o .cpp.o .cxx.o .C.o:
354	${CXX} ${CXXFLAGS} -c ${.IMPSRC} -o ${.TARGET}
355
356.m.o:
357	${OBJC} ${OBJCFLAGS} -c ${.IMPSRC} -o ${.TARGET}
358	${CTFCONVERT_CMD}
359
360.p.o:
361	${PC} ${PFLAGS} -c ${.IMPSRC} -o ${.TARGET}
362	${CTFCONVERT_CMD}
363
364.e .r .F .f:
365	${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} \
366	    -o ${.TARGET}
367
368.e.o .r.o .F.o .f.o:
369	${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} -c ${.IMPSRC} -o ${.TARGET}
370
371.S.o:
372	${CC:N${CCACHE_BIN}} ${CFLAGS} ${ACFLAGS} -c ${.IMPSRC} -o ${.TARGET}
373	${CTFCONVERT_CMD}
374
375.asm.o:
376	${CC:N${CCACHE_BIN}} -x assembler-with-cpp ${CFLAGS} ${ACFLAGS} -c ${.IMPSRC} \
377	    -o ${.TARGET}
378	${CTFCONVERT_CMD}
379
380.s.o:
381	${AS} ${AFLAGS} -o ${.TARGET} ${.IMPSRC}
382	${CTFCONVERT_CMD}
383
384# XXX not -j safe
385.y.o:
386	${YACC} ${YFLAGS} ${.IMPSRC}
387	${CC} ${CFLAGS} -c y.tab.c -o ${.TARGET}
388	rm -f y.tab.c
389	${CTFCONVERT_CMD}
390
391.l.o:
392	${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
393	${CC} ${CFLAGS} -c ${.PREFIX}.tmp.c -o ${.TARGET}
394	rm -f ${.PREFIX}.tmp.c
395	${CTFCONVERT_CMD}
396
397# XXX not -j safe
398.y.c:
399	${YACC} ${YFLAGS} ${.IMPSRC}
400	mv y.tab.c ${.TARGET}
401
402.l.c:
403	${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.TARGET}
404
405.s.out .c.out .o.out:
406	${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
407	${CTFCONVERT_CMD}
408
409.f.out .F.out .r.out .e.out:
410	${FC} ${EFLAGS} ${RFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} \
411	    ${LDLIBS} -o ${.TARGET}
412	rm -f ${.PREFIX}.o
413	${CTFCONVERT_CMD}
414
415# XXX not -j safe
416.y.out:
417	${YACC} ${YFLAGS} ${.IMPSRC}
418	${CC} ${CFLAGS} ${LDFLAGS} y.tab.c ${LDLIBS} -ly -o ${.TARGET}
419	rm -f y.tab.c
420	${CTFCONVERT_CMD}
421
422.l.out:
423	${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
424	${CC} ${CFLAGS} ${LDFLAGS} ${.PREFIX}.tmp.c ${LDLIBS} -ll -o ${.TARGET}
425	rm -f ${.PREFIX}.tmp.c
426	${CTFCONVERT_CMD}
427
428# Pull in global settings.
429__MAKE_CONF?=/etc/make.conf
430.if exists(${__MAKE_CONF})
431.include "${__MAKE_CONF}"
432.endif
433
434# late include for customization
435.sinclude <local.sys.mk>
436
437.if defined(META_MODE)
438META_MODE:=	${META_MODE:O:u}
439.endif
440
441.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
442SHELL=	${__MAKE_SHELL}
443.SHELL: path=${__MAKE_SHELL}
444.endif
445
446# Tell bmake to expand -V VAR by default
447.MAKE.EXPAND_VARIABLES= yes
448
449# Tell bmake the makefile preference
450MAKEFILE_PREFERENCE?= BSDmakefile makefile Makefile
451.MAKE.MAKEFILE_PREFERENCE= ${MAKEFILE_PREFERENCE}
452
453# Tell bmake to always pass job tokens, regardless of target depending on
454# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
455.MAKE.ALWAYS_PASS_JOB_QUEUE= yes
456
457# By default bmake does *not* use set -e
458# when running target scripts, this is a problem for many makefiles here.
459# So define a shell that will do what FreeBSD expects.
460.ifndef WITHOUT_SHELL_ERRCTL
461__MAKE_SHELL?=/bin/sh
462.SHELL: name=sh \
463	quiet="set -" echo="set -v" filter="set -" \
464	hasErrCtl=yes check="set -e" ignore="set +e" \
465	echoFlag=v errFlag=e \
466	path=${__MAKE_SHELL}
467.endif
468
469# Hack for ports compatibility. Historically, ports makefiles have
470# assumed they can examine MACHINE_CPU without including anything
471# because this was automatically included in sys.mk. For /usr/src,
472# this file has moved to being included from bsd.opts.mk. Until all
473# the ports files are modernized, and a reasonable transition
474# period has passed, include it while we're in a ports tree here
475# to preserve historic behavior.
476.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
477.include <bsd.cpu.mk>
478.endif
479
480.endif # ! Posix
481