xref: /freebsd/share/mk/sys.mk (revision 953111c9c536daf5304062914c0083cea5efb46b) 
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) && !defined(NO_META_IGNORE_HOST)
74# Ignore host file changes that will otherwise cause
75# buildworld -> installworld -> buildworld to rebuild everything.
76# Since the build is self-reliant and bootstraps everything it needs,
77# this should not be a real problem for incremental builds.
78# XXX: This relies on the existing host tools retaining ABI compatibility
79# through upgrades since they won't be rebuilt on header/library changes.
80# Note that these are prefix matching, so /lib matches /libexec.
81.MAKE.META.IGNORE_PATHS+= \
82	${__MAKE_SHELL} \
83	/bin \
84	/lib \
85	/rescue \
86	/sbin \
87	/usr/bin \
88	/usr/include \
89	/usr/lib \
90	/usr/sbin \
91	/usr/share \
92
93.endif
94.if !empty(.MAKE.MODE:Mmeta)
95# We do not want everything out-of-date just because
96# some unrelated shared lib updated this.
97.MAKE.META.IGNORE_PATHS+= /usr/local/etc/libmap.d
98.endif
99
100.if ${MK_AUTO_OBJ} == "yes"
101# This needs to be done early - before .PATH is computed
102# Don't do this for 'make showconfig' as it enables all options where meta mode
103# is not expected.
104.if !make(showconfig) && !make(print-dir)
105.sinclude <auto.obj.mk>
106.endif
107.endif
108.else # bmake
109.include <bsd.mkopt.mk>
110.endif
111
112# If the special target .POSIX appears (without prerequisites or
113# commands) before the first noncomment line in the makefile, make shall
114# process the makefile as specified by the Posix 1003.2 specification.
115# make(1) sets the special macro %POSIX in this case (to the actual
116# value "1003.2", for what it's worth).
117#
118# The rules below use this macro to distinguish between Posix-compliant
119# and default behaviour.
120#
121# This functionality is currently broken, since make(1) processes sys.mk
122# before reading any other files, and consequently has no opportunity to
123# set the %POSIX macro before we read this point.
124
125.if defined(%POSIX)
126.SUFFIXES:	.o .c .y .l .a .sh .f
127.else
128.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
129.endif
130
131AR		?=	ar
132.if defined(%POSIX)
133ARFLAGS		?=	-rv
134.else
135ARFLAGS		?=	-crD
136.endif
137RANLIB		?=	ranlib
138.if !defined(%POSIX)
139RANLIBFLAGS	?=	-D
140.endif
141
142AS		?=	as
143AFLAGS		?=
144ACFLAGS		?=
145
146.if defined(%POSIX)
147CC		?=	c89
148CFLAGS		?=	-O
149.else
150CC		?=	cc
151.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
152CFLAGS		?=	-O -pipe
153.else
154CFLAGS		?=	-O2 -pipe
155.endif
156.if defined(NO_STRICT_ALIASING)
157CFLAGS		+=	-fno-strict-aliasing
158.endif
159.endif
160IR_CFLAGS	?=	${STATIC_CFLAGS:N-O*} ${CFLAGS:N-O*}
161PO_CFLAGS	?=	${CFLAGS}
162
163# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
164# read-only files as non-root by passing -f.
165CP		?=	cp -f
166
167CPP		?=	cpp
168
169# C Type Format data is required for DTrace
170CTFFLAGS	?=	-L VERSION
171
172CTFCONVERT	?=	ctfconvert
173CTFMERGE	?=	ctfmerge
174
175.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
176CTFFLAGS	+=	-g
177.endif
178
179CXX		?=	c++
180CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
181IR_CXXFLAGS	?=	${STATIC_CXXFLAGS:N-O*} ${CXXFLAGS:N-O*}
182PO_CXXFLAGS	?=	${CXXFLAGS}
183
184DTRACE		?=	dtrace
185DTRACEFLAGS	?=	-C -x nolibs
186
187.if empty(.MAKEFLAGS:M-s)
188ECHO		?=	echo
189ECHODIR		?=	echo
190.else
191ECHO		?=	true
192.if ${.MAKEFLAGS:M-s} == "-s"
193ECHODIR		?=	echo
194.else
195ECHODIR		?=	true
196.endif
197.endif
198
199.if ${.MAKEFLAGS:M-N}
200# bmake -N is supposed to skip executing anything but it does not skip
201# exeucting '+' commands.  The '+' feature is used where .MAKE
202# is not safe for the entire target.  -N is intended to skip building sub-makes
203# so it executing '+' commands is not right.  Work around the bug by not
204# setting '+' when -N is used.
205_+_		?=
206.else
207_+_		?=	+
208.endif
209
210.if defined(%POSIX)
211FC		?=	fort77
212FFLAGS		?=	-O 1
213.else
214FC		?=	f77
215FFLAGS		?=	-O
216.endif
217EFLAGS		?=
218
219INSTALL		?=	install
220
221LEX		?=	lex
222LFLAGS		?=
223
224# LDFLAGS is for CC, _LDFLAGS is for LD.  Generate _LDFLAGS from
225# LDFLAGS by stripping -Wl, from pass-through arguments and dropping
226# compiler driver flags (e.g. -mabi=*) that conflict with flags to LD.
227LD		?=	ld
228LDFLAGS		?=
229_LDFLAGS	=	${LDFLAGS:S/-Wl,//g:N-mabi=*}
230
231LINT		?=	lint
232LINTFLAGS	?=	-cghapbx
233LINTKERNFLAGS	?=	${LINTFLAGS}
234LINTOBJFLAGS	?=	-cghapbxu -i
235LINTOBJKERNFLAGS?=	${LINTOBJFLAGS}
236LINTLIBFLAGS	?=	-cghapbxu -C ${LIB}
237
238MAKE		?=	make
239
240.if !defined(%POSIX)
241LLVM_LINK	?=	llvm-link
242
243LORDER		?=	lorder
244
245NM		?=	nm
246NMFLAGS		?=
247
248OBJC		?=	cc
249OBJCFLAGS	?=	${OBJCINCLUDES} ${CFLAGS} -Wno-import
250
251OBJCOPY		?=	objcopy
252
253PC		?=	pc
254PFLAGS		?=
255
256RC		?=	f77
257RFLAGS		?=
258
259TSORT		?=	tsort
260TSORTFLAGS	?=	-q
261.endif
262
263SHELL		?=	sh
264
265.if !defined(%POSIX)
266SIZE		?=	size
267.endif
268
269YACC		?=	yacc
270.if defined(%POSIX)
271YFLAGS		?=
272.else
273YFLAGS		?=	-d
274.endif
275
276.if defined(%POSIX)
277
278.include "bsd.suffixes-posix.mk"
279
280.else
281
282# non-Posix rule set
283.include "bsd.suffixes.mk"
284
285# Pull in global settings.
286__MAKE_CONF?=/etc/make.conf
287.if exists(${__MAKE_CONF})
288.include "${__MAKE_CONF}"
289.endif
290
291# late include for customization
292.sinclude <local.sys.mk>
293
294.if defined(META_MODE)
295META_MODE:=	${META_MODE:O:u}
296.endif
297
298.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
299SHELL=	${__MAKE_SHELL}
300.SHELL: path=${__MAKE_SHELL}
301.endif
302
303# Tell bmake to expand -V VAR by default
304.MAKE.EXPAND_VARIABLES= yes
305
306# Tell bmake the makefile preference
307.MAKE.MAKEFILE_PREFERENCE= BSDmakefile makefile Makefile
308
309# Tell bmake to always pass job tokens, regardless of target depending on
310# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
311.MAKE.ALWAYS_PASS_JOB_QUEUE= yes
312
313# By default bmake does *not* use set -e
314# when running target scripts, this is a problem for many makefiles here.
315# So define a shell that will do what FreeBSD expects.
316.ifndef WITHOUT_SHELL_ERRCTL
317__MAKE_SHELL?=/bin/sh
318.SHELL: name=sh \
319	quiet="set -" echo="set -v" filter="set -" \
320	hasErrCtl=yes check="set -e" ignore="set +e" \
321	echoFlag=v errFlag=e \
322	path=${__MAKE_SHELL}
323.endif
324
325# Hack for ports compatibility. Historically, ports makefiles have
326# assumed they can examine MACHINE_CPU without including anything
327# because this was automatically included in sys.mk. For /usr/src,
328# this file has moved to being included from bsd.opts.mk. Until all
329# the ports files are modernized, and a reasonable transition
330# period has passed, include it while we're in a ports tree here
331# to preserve historic behavior.
332.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
333.include <bsd.cpu.mk>
334.endif
335
336.endif # ! Posix
337