xref: /freebsd/share/mk/sys.mk (revision 5850a75952012c7bcc3a501b796a5ea92ae05fbd) 
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
95
96.if ${MK_AUTO_OBJ} == "yes"
97# This needs to be done early - before .PATH is computed
98# Don't do this for 'make showconfig' as it enables all options where meta mode
99# is not expected.
100.if !make(showconfig) && !make(print-dir)
101.sinclude <auto.obj.mk>
102.endif
103.endif
104.else # bmake
105.include <bsd.mkopt.mk>
106.endif
107
108# If the special target .POSIX appears (without prerequisites or
109# commands) before the first noncomment line in the makefile, make shall
110# process the makefile as specified by the Posix 1003.2 specification.
111# make(1) sets the special macro %POSIX in this case (to the actual
112# value "1003.2", for what it's worth).
113#
114# The rules below use this macro to distinguish between Posix-compliant
115# and default behaviour.
116#
117# This functionality is currently broken, since make(1) processes sys.mk
118# before reading any other files, and consequently has no opportunity to
119# set the %POSIX macro before we read this point.
120
121.if defined(%POSIX)
122.SUFFIXES:	.o .c .y .l .a .sh .f
123.else
124.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
125.endif
126
127AR		?=	ar
128.if defined(%POSIX)
129ARFLAGS		?=	-rv
130.else
131ARFLAGS		?=	-crD
132.endif
133RANLIB		?=	ranlib
134.if !defined(%POSIX)
135RANLIBFLAGS	?=	-D
136.endif
137
138AS		?=	as
139AFLAGS		?=
140ACFLAGS		?=
141
142.if defined(%POSIX)
143CC		?=	c89
144CFLAGS		?=	-O
145.else
146CC		?=	cc
147.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
148CFLAGS		?=	-O -pipe
149.else
150CFLAGS		?=	-O2 -pipe
151.endif
152.if defined(NO_STRICT_ALIASING)
153CFLAGS		+=	-fno-strict-aliasing
154.endif
155.endif
156IR_CFLAGS	?=	${STATIC_CFLAGS:N-O*} ${CFLAGS:N-O*}
157PO_CFLAGS	?=	${CFLAGS}
158
159# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
160# read-only files as non-root by passing -f.
161CP		?=	cp -f
162
163CPP		?=	cpp
164
165# C Type Format data is required for DTrace
166CTFFLAGS	?=	-L VERSION
167
168CTFCONVERT	?=	ctfconvert
169CTFMERGE	?=	ctfmerge
170
171.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
172CTFFLAGS	+=	-g
173.endif
174
175CXX		?=	c++
176CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
177IR_CXXFLAGS	?=	${STATIC_CXXFLAGS:N-O*} ${CXXFLAGS:N-O*}
178PO_CXXFLAGS	?=	${CXXFLAGS}
179
180DTRACE		?=	dtrace
181DTRACEFLAGS	?=	-C -x nolibs
182
183.if empty(.MAKEFLAGS:M-s)
184ECHO		?=	echo
185ECHODIR		?=	echo
186.else
187ECHO		?=	true
188.if ${.MAKEFLAGS:M-s} == "-s"
189ECHODIR		?=	echo
190.else
191ECHODIR		?=	true
192.endif
193.endif
194
195.if ${.MAKEFLAGS:M-N}
196# bmake -N is supposed to skip executing anything but it does not skip
197# exeucting '+' commands.  The '+' feature is used where .MAKE
198# is not safe for the entire target.  -N is intended to skip building sub-makes
199# so it executing '+' commands is not right.  Work around the bug by not
200# setting '+' when -N is used.
201_+_		?=
202.else
203_+_		?=	+
204.endif
205
206.if defined(%POSIX)
207FC		?=	fort77
208FFLAGS		?=	-O 1
209.else
210FC		?=	f77
211FFLAGS		?=	-O
212.endif
213EFLAGS		?=
214
215INSTALL		?=	install
216
217LEX		?=	lex
218LFLAGS		?=
219
220# LDFLAGS is for CC, _LDFLAGS is for LD.  Generate _LDFLAGS from
221# LDFLAGS by stripping -Wl, from pass-through arguments and dropping
222# compiler driver flags (e.g. -mabi=*) that conflict with flags to LD.
223LD		?=	ld
224LDFLAGS		?=
225_LDFLAGS	=	${LDFLAGS:S/-Wl,//g:N-mabi=*}
226
227LINT		?=	lint
228LINTFLAGS	?=	-cghapbx
229LINTKERNFLAGS	?=	${LINTFLAGS}
230LINTOBJFLAGS	?=	-cghapbxu -i
231LINTOBJKERNFLAGS?=	${LINTOBJFLAGS}
232LINTLIBFLAGS	?=	-cghapbxu -C ${LIB}
233
234MAKE		?=	make
235
236.if !defined(%POSIX)
237LLVM_LINK	?=	llvm-link
238
239LORDER		?=	lorder
240
241NM		?=	nm
242NMFLAGS		?=
243
244OBJC		?=	cc
245OBJCFLAGS	?=	${OBJCINCLUDES} ${CFLAGS} -Wno-import
246
247OBJCOPY		?=	objcopy
248
249PC		?=	pc
250PFLAGS		?=
251
252RC		?=	f77
253RFLAGS		?=
254
255TSORT		?=	tsort
256TSORTFLAGS	?=	-q
257.endif
258
259SHELL		?=	sh
260
261.if !defined(%POSIX)
262SIZE		?=	size
263.endif
264
265YACC		?=	yacc
266.if defined(%POSIX)
267YFLAGS		?=
268.else
269YFLAGS		?=	-d
270.endif
271
272.if defined(%POSIX)
273
274.include "bsd.suffixes-posix.mk"
275
276.else
277
278# non-Posix rule set
279.include "bsd.suffixes.mk"
280
281# Pull in global settings.
282__MAKE_CONF?=/etc/make.conf
283.if exists(${__MAKE_CONF})
284.include "${__MAKE_CONF}"
285.endif
286
287# late include for customization
288.sinclude <local.sys.mk>
289
290.if defined(META_MODE)
291META_MODE:=	${META_MODE:O:u}
292.endif
293
294.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
295SHELL=	${__MAKE_SHELL}
296.SHELL: path=${__MAKE_SHELL}
297.endif
298
299# Tell bmake to expand -V VAR by default
300.MAKE.EXPAND_VARIABLES= yes
301
302# Tell bmake the makefile preference
303.MAKE.MAKEFILE_PREFERENCE= BSDmakefile makefile Makefile
304
305# Tell bmake to always pass job tokens, regardless of target depending on
306# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
307.MAKE.ALWAYS_PASS_JOB_QUEUE= yes
308
309# By default bmake does *not* use set -e
310# when running target scripts, this is a problem for many makefiles here.
311# So define a shell that will do what FreeBSD expects.
312.ifndef WITHOUT_SHELL_ERRCTL
313__MAKE_SHELL?=/bin/sh
314.SHELL: name=sh \
315	quiet="set -" echo="set -v" filter="set -" \
316	hasErrCtl=yes check="set -e" ignore="set +e" \
317	echoFlag=v errFlag=e \
318	path=${__MAKE_SHELL}
319.endif
320
321# Hack for ports compatibility. Historically, ports makefiles have
322# assumed they can examine MACHINE_CPU without including anything
323# because this was automatically included in sys.mk. For /usr/src,
324# this file has moved to being included from bsd.opts.mk. Until all
325# the ports files are modernized, and a reasonable transition
326# period has passed, include it while we're in a ports tree here
327# to preserve historic behavior.
328.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
329.include <bsd.cpu.mk>
330.endif
331
332.endif # ! Posix
333