xref: /freebsd/share/mk/sys.mk (revision 9086e0e06819bdf7290dc15cc04985fe8e66a711) 
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)?(hf)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc(64|spe)/powerpc/:C/riscv64(sf)?/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"
53# verbose will show .MAKE.META.PREFIX for each target.
54META_MODE+=	meta verbose
55.if !defined(NO_META_MISSING)
56META_MODE+=	missing-meta=yes
57.endif
58# silent will hide command output if a .meta file is created.
59.if !defined(NO_SILENT)
60META_MODE+=	silent=yes
61.endif
62.if !exists(/dev/filemon)
63META_MODE+= nofilemon
64.endif
65# Require filemon data with bmake
66.if empty(META_MODE:Mnofilemon)
67META_MODE+= missing-filemon=yes
68.endif
69.endif
70META_MODE?= normal
71.export META_MODE
72.MAKE.MODE?= ${META_MODE}
73.if !empty(.MAKE.MODE:Mmeta)
74.if !defined(NO_META_IGNORE_HOST)
75# Ignore host file changes that will otherwise cause
76# buildworld -> installworld -> buildworld to rebuild everything.
77# Since the build is self-reliant and bootstraps everything it needs,
78# this should not be a real problem for incremental builds.
79# XXX: This relies on the existing host tools retaining ABI compatibility
80# through upgrades since they won't be rebuilt on header/library changes.
81# This is mitigated by Makefile.inc1 for known-ABI-breaking revisions.
82# Note that these are prefix matching, so /lib matches /libexec.
83.MAKE.META.IGNORE_PATHS+= \
84	${__MAKE_SHELL} \
85	/bin \
86	/lib \
87	/rescue \
88	/sbin \
89	/usr/bin \
90	/usr/lib \
91	/usr/sbin \
92	/usr/share \
93
94.else
95NO_META_IGNORE_HOST_HEADERS=	1
96.endif
97.if !defined(NO_META_IGNORE_HOST_HEADERS)
98.MAKE.META.IGNORE_PATHS+= /usr/include
99.endif
100# We do not want everything out-of-date just because
101# some unrelated shared lib updated this.
102.MAKE.META.IGNORE_PATHS+= /usr/local/etc/libmap.d
103.endif	# !empty(.MAKE.MODE:Mmeta)
104
105.if ${MK_AUTO_OBJ} == "yes"
106# This needs to be done early - before .PATH is computed
107# Don't do this for 'make showconfig' as it enables all options where meta mode
108# is not expected.
109.if !make(showconfig) && !make(print-dir)
110.sinclude <auto.obj.mk>
111.endif
112.endif
113.else # bmake
114.include <bsd.mkopt.mk>
115.endif
116
117# If the special target .POSIX appears (without prerequisites or
118# commands) before the first noncomment line in the makefile, make shall
119# process the makefile as specified by the Posix 1003.2 specification.
120# make(1) sets the special macro %POSIX in this case (to the actual
121# value "1003.2", for what it's worth).
122#
123# The rules below use this macro to distinguish between Posix-compliant
124# and default behaviour.
125#
126# This functionality is currently broken, since make(1) processes sys.mk
127# before reading any other files, and consequently has no opportunity to
128# set the %POSIX macro before we read this point.
129
130.if defined(%POSIX)
131.SUFFIXES:	.o .c .y .l .a .sh .f
132.else
133.SUFFIXES:	.out .a .ln .o .bco .llo .c .cc .cpp .cxx .C .m .F .f .e .r .y .l .S .asm .s .cl .p .h .sh
134.endif
135
136AR		?=	ar
137.if defined(%POSIX)
138ARFLAGS		?=	-rv
139.else
140ARFLAGS		?=	-crD
141.endif
142RANLIB		?=	ranlib
143.if !defined(%POSIX)
144RANLIBFLAGS	?=	-D
145.endif
146
147AS		?=	as
148AFLAGS		?=
149ACFLAGS		?=
150
151.if defined(%POSIX)
152CC		?=	c89
153CFLAGS		?=	-O
154.else
155CC		?=	cc
156.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
157CFLAGS		?=	-O -pipe
158.else
159CFLAGS		?=	-O2 -pipe
160.endif
161.if defined(NO_STRICT_ALIASING)
162CFLAGS		+=	-fno-strict-aliasing
163.endif
164.endif
165IR_CFLAGS	?=	${STATIC_CFLAGS:N-O*} ${CFLAGS:N-O*}
166PO_CFLAGS	?=	${CFLAGS}
167
168# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
169# read-only files as non-root by passing -f.
170CP		?=	cp -f
171
172CPP		?=	cpp
173
174# C Type Format data is required for DTrace
175CTFFLAGS	?=	-L VERSION
176
177CTFCONVERT	?=	ctfconvert
178CTFMERGE	?=	ctfmerge
179
180.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
181CTFFLAGS	+=	-g
182.endif
183
184CXX		?=	c++
185CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
186IR_CXXFLAGS	?=	${STATIC_CXXFLAGS:N-O*} ${CXXFLAGS:N-O*}
187PO_CXXFLAGS	?=	${CXXFLAGS}
188
189DTRACE		?=	dtrace
190DTRACEFLAGS	?=	-C -x nolibs
191
192.if empty(.MAKEFLAGS:M-s)
193ECHO		?=	echo
194ECHODIR		?=	echo
195.else
196ECHO		?=	true
197.if ${.MAKEFLAGS:M-s} == "-s"
198ECHODIR		?=	echo
199.else
200ECHODIR		?=	true
201.endif
202.endif
203
204.if ${.MAKEFLAGS:M-N}
205# bmake -N is supposed to skip executing anything but it does not skip
206# exeucting '+' commands.  The '+' feature is used where .MAKE
207# is not safe for the entire target.  -N is intended to skip building sub-makes
208# so it executing '+' commands is not right.  Work around the bug by not
209# setting '+' when -N is used.
210_+_		?=
211.else
212_+_		?=	+
213.endif
214
215.if defined(%POSIX)
216FC		?=	fort77
217FFLAGS		?=	-O 1
218.else
219FC		?=	f77
220FFLAGS		?=	-O
221.endif
222EFLAGS		?=
223
224INSTALL		?=	install
225
226LEX		?=	lex
227LFLAGS		?=
228
229# LDFLAGS is for CC, _LDFLAGS is for LD.  Generate _LDFLAGS from
230# LDFLAGS by stripping -Wl, from pass-through arguments and dropping
231# compiler driver flags (e.g. -mabi=*) that conflict with flags to LD.
232LD		?=	ld
233LDFLAGS		?=
234_LDFLAGS	=	${LDFLAGS:S/-Wl,//g:N-mabi=*}
235
236LINT		?=	lint
237LINTFLAGS	?=	-cghapbx
238LINTKERNFLAGS	?=	${LINTFLAGS}
239LINTOBJFLAGS	?=	-cghapbxu -i
240LINTOBJKERNFLAGS?=	${LINTOBJFLAGS}
241LINTLIBFLAGS	?=	-cghapbxu -C ${LIB}
242
243MAKE		?=	make
244
245.if !defined(%POSIX)
246LLVM_LINK	?=	llvm-link
247
248LORDER		?=	lorder
249
250NM		?=	nm
251NMFLAGS		?=
252
253OBJC		?=	cc
254OBJCFLAGS	?=	${OBJCINCLUDES} ${CFLAGS} -Wno-import
255
256OBJCOPY		?=	objcopy
257
258PC		?=	pc
259PFLAGS		?=
260
261RC		?=	f77
262RFLAGS		?=
263
264TSORT		?=	tsort
265TSORTFLAGS	?=	-q
266.endif
267
268SHELL		?=	sh
269
270.if !defined(%POSIX)
271SIZE		?=	size
272.endif
273
274YACC		?=	yacc
275.if defined(%POSIX)
276YFLAGS		?=
277.else
278YFLAGS		?=	-d
279.endif
280
281.if defined(%POSIX)
282
283.include "bsd.suffixes-posix.mk"
284
285.else
286
287# non-Posix rule set
288.include "bsd.suffixes.mk"
289
290# Pull in global settings.
291__MAKE_CONF?=/etc/make.conf
292.if exists(${__MAKE_CONF})
293.include "${__MAKE_CONF}"
294.endif
295
296# late include for customization
297.sinclude <local.sys.mk>
298
299.if defined(META_MODE)
300META_MODE:=	${META_MODE:O:u}
301.endif
302
303.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
304SHELL=	${__MAKE_SHELL}
305.SHELL: path=${__MAKE_SHELL}
306.endif
307
308# Tell bmake to expand -V VAR by default
309.MAKE.EXPAND_VARIABLES= yes
310
311# Tell bmake the makefile preference
312.MAKE.MAKEFILE_PREFERENCE= BSDmakefile makefile Makefile
313
314# Tell bmake to always pass job tokens, regardless of target depending on
315# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
316.MAKE.ALWAYS_PASS_JOB_QUEUE= yes
317
318# By default bmake does *not* use set -e
319# when running target scripts, this is a problem for many makefiles here.
320# So define a shell that will do what FreeBSD expects.
321.ifndef WITHOUT_SHELL_ERRCTL
322__MAKE_SHELL?=/bin/sh
323.SHELL: name=sh \
324	quiet="set -" echo="set -v" filter="set -" \
325	hasErrCtl=yes check="set -e" ignore="set +e" \
326	echoFlag=v errFlag=e \
327	path=${__MAKE_SHELL}
328.endif
329
330# Hack for ports compatibility. Historically, ports makefiles have
331# assumed they can examine MACHINE_CPU without including anything
332# because this was automatically included in sys.mk. For /usr/src,
333# this file has moved to being included from bsd.opts.mk. Until all
334# the ports files are modernized, and a reasonable transition
335# period has passed, include it while we're in a ports tree here
336# to preserve historic behavior.
337.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
338.include <bsd.cpu.mk>
339.endif
340
341.endif # ! Posix
342