xref: /freebsd/share/mk/sys.mk (revision 094fc1ed0f2627525c7b0342efcbad5be7a8546a) 
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, the source 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#
16__TO_CPUARCH=C/mips(n32|64)?(el)?(hf)?/mips/:C/arm(v[67])?(eb)?/arm/:C/powerpc(64|spe)/powerpc/:C/riscv64(sf)?/riscv/
17MACHINE_CPUARCH=${MACHINE_ARCH:${__TO_CPUARCH}}
18.endif
19
20
21# Some options we need now
22__DEFAULT_NO_OPTIONS= \
23	DIRDEPS_BUILD \
24	DIRDEPS_CACHE
25
26__DEFAULT_DEPENDENT_OPTIONS= \
27	AUTO_OBJ/DIRDEPS_BUILD \
28	META_MODE/DIRDEPS_BUILD \
29	STAGING/DIRDEPS_BUILD \
30	SYSROOT/DIRDEPS_BUILD
31
32__ENV_ONLY_OPTIONS:= \
33	${__DEFAULT_NO_OPTIONS} \
34	${__DEFAULT_YES_OPTIONS} \
35	${__DEFAULT_DEPENDENT_OPTIONS:H}
36
37# early include for customization
38# see local.sys.mk below
39# Not included when building in fmake compatibility mode (still needed
40# for older system support)
41.if defined(.PARSEDIR)
42.sinclude <local.sys.env.mk>
43
44.include <bsd.mkopt.mk>
45
46# Disable MK_META_MODE with make -B
47.if ${MK_META_MODE} == "yes" && defined(.MAKEFLAGS) && ${.MAKEFLAGS:M-B}
48MK_META_MODE=	no
49.endif
50
51.if ${MK_DIRDEPS_BUILD} == "yes"
52.sinclude <meta.sys.mk>
53.elif ${MK_META_MODE} == "yes"
54# verbose will show .MAKE.META.PREFIX for each target.
55META_MODE+=	meta verbose
56.if !defined(NO_META_MISSING)
57META_MODE+=	missing-meta=yes
58.endif
59# silent will hide command output if a .meta file is created.
60.if !defined(NO_SILENT)
61META_MODE+=	silent=yes
62.endif
63.if !exists(/dev/filemon) || defined(NO_FILEMON)
64META_MODE+= nofilemon
65.endif
66# Require filemon data with bmake
67.if empty(META_MODE:Mnofilemon)
68META_MODE+= missing-filemon=yes
69.endif
70.endif
71META_MODE?= normal
72.export META_MODE
73.MAKE.MODE?= ${META_MODE}
74.if !empty(.MAKE.MODE:Mmeta)
75.if !defined(NO_META_IGNORE_HOST)
76# Ignore host file changes that will otherwise cause
77# buildworld -> installworld -> buildworld to rebuild everything.
78# Since the build is self-reliant and bootstraps everything it needs,
79# this should not be a real problem for incremental builds.
80# XXX: This relies on the existing host tools retaining ABI compatibility
81# through upgrades since they won't be rebuilt on header/library changes.
82# This is mitigated by Makefile.inc1 for known-ABI-breaking revisions.
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/lib \
92	/usr/sbin \
93	/usr/share \
94
95.else
96NO_META_IGNORE_HOST_HEADERS=	1
97.endif
98.if !defined(NO_META_IGNORE_HOST_HEADERS)
99.MAKE.META.IGNORE_PATHS+= /usr/include
100.endif
101# We do not want everything out-of-date just because
102# some unrelated shared lib updated this.
103.MAKE.META.IGNORE_PATHS+= /usr/local/etc/libmap.d
104.endif	# !empty(.MAKE.MODE:Mmeta)
105
106.if ${MK_AUTO_OBJ} == "yes"
107# This needs to be done early - before .PATH is computed
108# Don't do this for 'make showconfig' as it enables all options where meta mode
109# is not expected.
110.if !make(showconfig) && !make(print-dir)
111.sinclude <auto.obj.mk>
112.endif
113.endif
114.else # bmake
115.include <bsd.mkopt.mk>
116.endif
117
118# If the special target .POSIX appears (without prerequisites or
119# commands) before the first noncomment line in the makefile, make shall
120# process the makefile as specified by the Posix 1003.2 specification.
121# make(1) sets the special macro %POSIX in this case (to the actual
122# value "1003.2", for what it's worth).
123#
124# The rules below use this macro to distinguish between Posix-compliant
125# and default behaviour.
126#
127# This functionality is currently broken, since make(1) processes sys.mk
128# before reading any other files, and consequently has no opportunity to
129# set the %POSIX macro before we read this point.
130
131.if defined(%POSIX)
132.SUFFIXES:	.o .c .y .l .a .sh .f
133.else
134.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
135.endif
136
137AR		?=	ar
138.if defined(%POSIX)
139ARFLAGS		?=	-rv
140.else
141ARFLAGS		?=	-crD
142.endif
143RANLIB		?=	ranlib
144.if !defined(%POSIX)
145RANLIBFLAGS	?=	-D
146.endif
147
148AS		?=	as
149AFLAGS		?=
150ACFLAGS		?=
151
152.if defined(%POSIX)
153CC		?=	c89
154CFLAGS		?=	-O
155.else
156CC		?=	cc
157.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
158CFLAGS		?=	-O -pipe
159.else
160CFLAGS		?=	-O2 -pipe
161.endif
162.if defined(NO_STRICT_ALIASING)
163CFLAGS		+=	-fno-strict-aliasing
164.endif
165.endif
166IR_CFLAGS	?=	${STATIC_CFLAGS:N-O*} ${CFLAGS:N-O*}
167PO_CFLAGS	?=	${CFLAGS}
168
169# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
170# read-only files as non-root by passing -f.
171CP		?=	cp -f
172
173CPP		?=	cpp
174
175# C Type Format data is required for DTrace
176CTFFLAGS	?=	-L VERSION
177
178CTFCONVERT	?=	ctfconvert
179CTFMERGE	?=	ctfmerge
180
181.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
182CTFFLAGS	+=	-g
183.endif
184
185CXX		?=	c++
186CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
187IR_CXXFLAGS	?=	${STATIC_CXXFLAGS:N-O*} ${CXXFLAGS:N-O*}
188PO_CXXFLAGS	?=	${CXXFLAGS}
189
190DTRACE		?=	dtrace
191DTRACEFLAGS	?=	-C -x nolibs
192
193.if empty(.MAKEFLAGS:M-s)
194ECHO		?=	echo
195ECHODIR		?=	echo
196.else
197ECHO		?=	true
198.if ${.MAKEFLAGS:M-s} == "-s"
199ECHODIR		?=	echo
200.else
201ECHODIR		?=	true
202.endif
203.endif
204
205.if ${.MAKEFLAGS:M-N}
206# bmake -N is supposed to skip executing anything but it does not skip
207# exeucting '+' commands.  The '+' feature is used where .MAKE
208# is not safe for the entire target.  -N is intended to skip building sub-makes
209# so it executing '+' commands is not right.  Work around the bug by not
210# setting '+' when -N is used.
211_+_		?=
212.else
213_+_		?=	+
214.endif
215
216.if defined(%POSIX)
217FC		?=	fort77
218FFLAGS		?=	-O 1
219.else
220FC		?=	f77
221FFLAGS		?=	-O
222.endif
223EFLAGS		?=
224
225INSTALL		?=	install
226
227LEX		?=	lex
228LFLAGS		?=
229
230# LDFLAGS is for CC, _LDFLAGS is for LD.  Generate _LDFLAGS from
231# LDFLAGS by stripping -Wl, from pass-through arguments and dropping
232# compiler driver flags (e.g. -mabi=*) that conflict with flags to LD.
233LD		?=	ld
234LDFLAGS		?=
235_LDFLAGS	=	${LDFLAGS:S/-Wl,//g:N-mabi=*}
236
237LINT		?=	lint
238LINTFLAGS	?=	-cghapbx
239LINTKERNFLAGS	?=	${LINTFLAGS}
240LINTOBJFLAGS	?=	-cghapbxu -i
241LINTOBJKERNFLAGS?=	${LINTOBJFLAGS}
242LINTLIBFLAGS	?=	-cghapbxu -C ${LIB}
243
244MAKE		?=	make
245
246.if !defined(%POSIX)
247LLVM_LINK	?=	llvm-link
248
249LORDER		?=	lorder
250
251NM		?=	nm
252NMFLAGS		?=
253
254OBJC		?=	cc
255OBJCFLAGS	?=	${OBJCINCLUDES} ${CFLAGS} -Wno-import
256
257OBJCOPY		?=	objcopy
258
259PC		?=	pc
260PFLAGS		?=
261
262RC		?=	f77
263RFLAGS		?=
264
265TSORT		?=	tsort
266TSORTFLAGS	?=	-q
267.endif
268
269SHELL		?=	sh
270
271.if !defined(%POSIX)
272SIZE		?=	size
273.endif
274
275YACC		?=	yacc
276.if defined(%POSIX)
277YFLAGS		?=
278.else
279YFLAGS		?=	-d
280.endif
281
282.if defined(%POSIX)
283
284.include "bsd.suffixes-posix.mk"
285
286.else
287
288# non-Posix rule set
289.include "bsd.suffixes.mk"
290
291# Pull in global settings.
292__MAKE_CONF?=/etc/make.conf
293.if exists(${__MAKE_CONF})
294.include "${__MAKE_CONF}"
295.endif
296
297# late include for customization
298.sinclude <local.sys.mk>
299
300.if defined(META_MODE)
301META_MODE:=	${META_MODE:O:u}
302.endif
303
304.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
305SHELL=	${__MAKE_SHELL}
306.SHELL: path=${__MAKE_SHELL}
307.endif
308
309# Tell bmake to expand -V VAR by default
310.MAKE.EXPAND_VARIABLES= yes
311
312# Tell bmake the makefile preference
313.MAKE.MAKEFILE_PREFERENCE= BSDmakefile makefile Makefile
314
315# Tell bmake to always pass job tokens, regardless of target depending on
316# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
317.MAKE.ALWAYS_PASS_JOB_QUEUE= yes
318
319# By default bmake does *not* use set -e
320# when running target scripts, this is a problem for many makefiles here.
321# So define a shell that will do what FreeBSD expects.
322.ifndef WITHOUT_SHELL_ERRCTL
323__MAKE_SHELL?=/bin/sh
324.SHELL: name=sh \
325	quiet="set -" echo="set -v" filter="set -" \
326	hasErrCtl=yes check="set -e" ignore="set +e" \
327	echoFlag=v errFlag=e \
328	path=${__MAKE_SHELL}
329.endif
330
331# Hack for ports compatibility. Historically, ports makefiles have
332# assumed they can examine MACHINE_CPU without including anything
333# because this was automatically included in sys.mk. For /usr/src,
334# this file has moved to being included from bsd.opts.mk. Until all
335# the ports files are modernized, and a reasonable transition
336# period has passed, include it while we're in a ports tree here
337# to preserve historic behavior.
338.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
339.include <bsd.cpu.mk>
340.endif
341
342.endif # ! Posix
343