xref: /freebsd/share/mk/sys.mk (revision ca987d4641cdcd7f27e153db17c5bf064934faf5) 
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__DEFAULT_YES_OPTIONS+= \
21	UNIFIED_OBJDIR
22
23# src.sys.obj.mk enables AUTO_OBJ by default if possible but it is otherwise
24# disabled.  Ensure src.conf.5 shows it as default on.
25.if make(showconfig)
26__DEFAULT_YES_OPTIONS+= AUTO_OBJ
27.endif
28
29# Some options we need now
30__DEFAULT_NO_OPTIONS= \
31	DIRDEPS_BUILD \
32	DIRDEPS_CACHE
33
34__DEFAULT_DEPENDENT_OPTIONS= \
35	AUTO_OBJ/DIRDEPS_BUILD \
36	META_MODE/DIRDEPS_BUILD \
37	STAGING/DIRDEPS_BUILD \
38	SYSROOT/DIRDEPS_BUILD
39
40__ENV_ONLY_OPTIONS:= \
41	${__DEFAULT_NO_OPTIONS} \
42	${__DEFAULT_YES_OPTIONS} \
43	${__DEFAULT_DEPENDENT_OPTIONS:H}
44
45# early include for customization
46# see local.sys.mk below
47# Not included when building in fmake compatibility mode (still needed
48# for older system support)
49.if defined(.PARSEDIR)
50.sinclude <local.sys.env.mk>
51
52.include <bsd.mkopt.mk>
53
54# Disable MK_META_MODE with make -B
55.if ${MK_META_MODE} == "yes" && defined(.MAKEFLAGS) && ${.MAKEFLAGS:M-B}
56MK_META_MODE=	no
57.endif
58
59.if ${MK_DIRDEPS_BUILD} == "yes"
60.sinclude <meta.sys.mk>
61.elif ${MK_META_MODE} == "yes"
62META_MODE+=	meta
63.if empty(.MAKEFLAGS:M-s)
64# verbose will show .MAKE.META.PREFIX for each target.
65META_MODE+=	verbose
66.endif
67.if !defined(NO_META_MISSING)
68META_MODE+=	missing-meta=yes
69.endif
70# silent will hide command output if a .meta file is created.
71.if !defined(NO_SILENT)
72META_MODE+=	silent=yes
73.endif
74.if !exists(/dev/filemon) || defined(NO_FILEMON)
75META_MODE+= nofilemon
76.endif
77# Require filemon data with bmake
78.if empty(META_MODE:Mnofilemon)
79META_MODE+= missing-filemon=yes
80.endif
81.endif
82META_MODE?= normal
83.export META_MODE
84.MAKE.MODE?= ${META_MODE}
85.if !empty(.MAKE.MODE:Mmeta)
86.if !defined(NO_META_IGNORE_HOST)
87# Ignore host file changes that will otherwise cause
88# buildworld -> installworld -> buildworld to rebuild everything.
89# Since the build is self-reliant and bootstraps everything it needs,
90# this should not be a real problem for incremental builds.
91# XXX: This relies on the existing host tools retaining ABI compatibility
92# through upgrades since they won't be rebuilt on header/library changes.
93# This is mitigated by Makefile.inc1 for known-ABI-breaking revisions.
94# Note that these are prefix matching, so /lib matches /libexec.
95.MAKE.META.IGNORE_PATHS+= \
96	${__MAKE_SHELL} \
97	/bin \
98	/lib \
99	/rescue \
100	/sbin \
101	/usr/bin \
102	/usr/lib \
103	/usr/sbin \
104	/usr/share \
105
106.else
107NO_META_IGNORE_HOST_HEADERS=	1
108.endif
109.if !defined(NO_META_IGNORE_HOST_HEADERS)
110.MAKE.META.IGNORE_PATHS+= /usr/include
111.endif
112# We do not want everything out-of-date just because
113# some unrelated shared lib updated this.
114.MAKE.META.IGNORE_PATHS+= /usr/local/etc/libmap.d
115.endif	# !empty(.MAKE.MODE:Mmeta)
116
117.if ${MK_AUTO_OBJ} == "yes"
118# This needs to be done early - before .PATH is computed
119# Don't do this for 'make showconfig' as it enables all options where meta mode
120# is not expected.
121.if !make(showconfig) && !make(print-dir) && empty(.MAKEFLAGS:M-[nN])
122.sinclude <auto.obj.mk>
123.endif
124.endif	# ${MK_AUTO_OBJ} == "yes"
125.else # bmake
126.include <bsd.mkopt.mk>
127.endif
128
129# If the special target .POSIX appears (without prerequisites or
130# commands) before the first noncomment line in the makefile, make shall
131# process the makefile as specified by the Posix 1003.2 specification.
132# make(1) sets the special macro %POSIX in this case (to the actual
133# value "1003.2", for what it's worth).
134#
135# The rules below use this macro to distinguish between Posix-compliant
136# and default behaviour.
137#
138# This functionality is currently broken, since make(1) processes sys.mk
139# before reading any other files, and consequently has no opportunity to
140# set the %POSIX macro before we read this point.
141
142.if defined(%POSIX)
143.SUFFIXES:	.o .c .y .l .a .sh .f
144.else
145.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
146.endif
147
148AR		?=	ar
149.if defined(%POSIX)
150ARFLAGS		?=	-rv
151.else
152ARFLAGS		?=	-crD
153.endif
154RANLIB		?=	ranlib
155.if !defined(%POSIX)
156RANLIBFLAGS	?=	-D
157.endif
158
159AS		?=	as
160AFLAGS		?=
161ACFLAGS		?=
162
163.if defined(%POSIX)
164CC		?=	c89
165CFLAGS		?=	-O
166.else
167CC		?=	cc
168.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
169CFLAGS		?=	-O -pipe
170.else
171CFLAGS		?=	-O2 -pipe
172.endif
173.if defined(NO_STRICT_ALIASING)
174CFLAGS		+=	-fno-strict-aliasing
175.endif
176.endif
177IR_CFLAGS	?=	${STATIC_CFLAGS:N-O*} ${CFLAGS:N-O*}
178PO_CFLAGS	?=	${CFLAGS}
179
180# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
181# read-only files as non-root by passing -f.
182CP		?=	cp -f
183
184CPP		?=	cpp
185
186# C Type Format data is required for DTrace
187CTFFLAGS	?=	-L VERSION
188
189CTFCONVERT	?=	ctfconvert
190CTFMERGE	?=	ctfmerge
191
192.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
193CTFFLAGS	+=	-g
194.endif
195
196CXX		?=	c++
197CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
198IR_CXXFLAGS	?=	${STATIC_CXXFLAGS:N-O*} ${CXXFLAGS:N-O*}
199PO_CXXFLAGS	?=	${CXXFLAGS}
200
201DTRACE		?=	dtrace
202DTRACEFLAGS	?=	-C -x nolibs
203
204.if empty(.MAKEFLAGS:M-s)
205ECHO		?=	echo
206ECHODIR		?=	echo
207.else
208ECHO		?=	true
209.if ${.MAKEFLAGS:M-s} == "-s"
210ECHODIR		?=	echo
211.else
212ECHODIR		?=	true
213.endif
214.endif
215
216.if ${.MAKEFLAGS:M-N}
217# bmake -N is supposed to skip executing anything but it does not skip
218# exeucting '+' commands.  The '+' feature is used where .MAKE
219# is not safe for the entire target.  -N is intended to skip building sub-makes
220# so it executing '+' commands is not right.  Work around the bug by not
221# setting '+' when -N is used.
222_+_		?=
223.else
224_+_		?=	+
225.endif
226
227.if defined(%POSIX)
228FC		?=	fort77
229FFLAGS		?=	-O 1
230.else
231FC		?=	f77
232FFLAGS		?=	-O
233.endif
234EFLAGS		?=
235
236INSTALL		?=	install
237
238LEX		?=	lex
239LFLAGS		?=
240
241# LDFLAGS is for CC, _LDFLAGS is for LD.  Generate _LDFLAGS from
242# LDFLAGS by stripping -Wl, from pass-through arguments and dropping
243# compiler driver flags (e.g. -mabi=*) that conflict with flags to LD.
244LD		?=	ld
245LDFLAGS		?=
246_LDFLAGS	=	${LDFLAGS:S/-Wl,//g:N-mabi=*:N-fuse-ld=*}
247
248LINT		?=	lint
249LINTFLAGS	?=	-cghapbx
250LINTKERNFLAGS	?=	${LINTFLAGS}
251LINTOBJFLAGS	?=	-cghapbxu -i
252LINTOBJKERNFLAGS?=	${LINTOBJFLAGS}
253LINTLIBFLAGS	?=	-cghapbxu -C ${LIB}
254
255MAKE		?=	make
256
257.if !defined(%POSIX)
258LLVM_LINK	?=	llvm-link
259
260LORDER		?=	lorder
261
262NM		?=	nm
263NMFLAGS		?=
264
265OBJC		?=	cc
266OBJCFLAGS	?=	${OBJCINCLUDES} ${CFLAGS} -Wno-import
267
268OBJCOPY		?=	objcopy
269
270PC		?=	pc
271PFLAGS		?=
272
273RC		?=	f77
274RFLAGS		?=
275
276TSORT		?=	tsort
277TSORTFLAGS	?=	-q
278.endif
279
280SHELL		?=	sh
281
282.if !defined(%POSIX)
283SIZE		?=	size
284.endif
285
286YACC		?=	yacc
287.if defined(%POSIX)
288YFLAGS		?=
289.else
290YFLAGS		?=	-d
291.endif
292
293.if defined(%POSIX)
294
295.include "bsd.suffixes-posix.mk"
296
297.else
298
299# non-Posix rule set
300.include "bsd.suffixes.mk"
301
302# Pull in global settings.
303__MAKE_CONF?=/etc/make.conf
304.if exists(${__MAKE_CONF})
305.include "${__MAKE_CONF}"
306.endif
307
308# late include for customization
309.sinclude <local.sys.mk>
310
311.if defined(META_MODE)
312META_MODE:=	${META_MODE:O:u}
313.endif
314
315.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
316SHELL=	${__MAKE_SHELL}
317.SHELL: path=${__MAKE_SHELL}
318.endif
319
320# Tell bmake to expand -V VAR by default
321.MAKE.EXPAND_VARIABLES= yes
322
323# Tell bmake the makefile preference
324.MAKE.MAKEFILE_PREFERENCE= BSDmakefile makefile Makefile
325
326# Tell bmake to always pass job tokens, regardless of target depending on
327# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
328.MAKE.ALWAYS_PASS_JOB_QUEUE= yes
329
330# By default bmake does *not* use set -e
331# when running target scripts, this is a problem for many makefiles here.
332# So define a shell that will do what FreeBSD expects.
333.ifndef WITHOUT_SHELL_ERRCTL
334__MAKE_SHELL?=/bin/sh
335.SHELL: name=sh \
336	quiet="set -" echo="set -v" filter="set -" \
337	hasErrCtl=yes check="set -e" ignore="set +e" \
338	echoFlag=v errFlag=e \
339	path=${__MAKE_SHELL}
340.endif
341
342# Hack for ports compatibility. Historically, ports makefiles have
343# assumed they can examine MACHINE_CPU without including anything
344# because this was automatically included in sys.mk. For /usr/src,
345# this file has moved to being included from bsd.opts.mk. Until all
346# the ports files are modernized, and a reasonable transition
347# period has passed, include it while we're in a ports tree here
348# to preserve historic behavior.
349.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
350.include <bsd.cpu.mk>
351.endif
352
353.endif # ! Posix
354