xref: /freebsd/share/mk/sys.mk (revision d01498defbe804f66435b44f22da9278acddf082) 
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)?/mips/:C/arm(v6)?(eb|hf)?/arm/:C/powerpc64/powerpc/:C/riscv64/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 .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
156PO_CFLAGS	?=	${CFLAGS}
157
158# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
159# read-only files as non-root by passing -f.
160CP		?=	cp -f
161
162CPP		?=	cpp
163
164# C Type Format data is required for DTrace
165CTFFLAGS	?=	-L VERSION
166
167CTFCONVERT	?=	ctfconvert
168CTFMERGE	?=	ctfmerge
169
170.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
171CTFFLAGS	+=	-g
172.endif
173
174CXX		?=	c++
175CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
176PO_CXXFLAGS	?=	${CXXFLAGS}
177
178DTRACE		?=	dtrace
179DTRACEFLAGS	?=	-C -x nolibs
180
181.if empty(.MAKEFLAGS:M-s)
182ECHO		?=	echo
183ECHODIR		?=	echo
184.else
185ECHO		?=	true
186.if ${.MAKEFLAGS:M-s} == "-s"
187ECHODIR		?=	echo
188.else
189ECHODIR		?=	true
190.endif
191.endif
192
193.if ${.MAKEFLAGS:M-N}
194# bmake -N is supposed to skip executing anything but it does not skip
195# exeucting '+' commands.  The '+' feature is used where .MAKE
196# is not safe for the entire target.  -N is intended to skip building sub-makes
197# so it executing '+' commands is not right.  Work around the bug by not
198# setting '+' when -N is used.
199_+_		?=
200.else
201_+_		?=	+
202.endif
203
204.if defined(%POSIX)
205FC		?=	fort77
206FFLAGS		?=	-O 1
207.else
208FC		?=	f77
209FFLAGS		?=	-O
210.endif
211EFLAGS		?=
212
213INSTALL		?=	install
214
215LEX		?=	lex
216LFLAGS		?=
217
218LD		?=	ld
219LDFLAGS		?=				# LDFLAGS is for CC,
220_LDFLAGS	=	${LDFLAGS:S/-Wl,//g}	# strip -Wl, for LD
221
222LINT		?=	lint
223LINTFLAGS	?=	-cghapbx
224LINTKERNFLAGS	?=	${LINTFLAGS}
225LINTOBJFLAGS	?=	-cghapbxu -i
226LINTOBJKERNFLAGS?=	${LINTOBJFLAGS}
227LINTLIBFLAGS	?=	-cghapbxu -C ${LIB}
228
229MAKE		?=	make
230
231.if !defined(%POSIX)
232NM		?=	nm
233NMFLAGS		?=
234
235OBJC		?=	cc
236OBJCFLAGS	?=	${OBJCINCLUDES} ${CFLAGS} -Wno-import
237
238OBJCOPY		?=	objcopy
239
240PC		?=	pc
241PFLAGS		?=
242
243RC		?=	f77
244RFLAGS		?=
245.endif
246
247SHELL		?=	sh
248
249.if !defined(%POSIX)
250SIZE		?=	size
251.endif
252
253YACC		?=	yacc
254.if defined(%POSIX)
255YFLAGS		?=
256.else
257YFLAGS		?=	-d
258.endif
259
260.if defined(%POSIX)
261
262.include "bsd.suffixes-posix.mk"
263
264.else
265
266# non-Posix rule set
267.include "bsd.suffixes.mk"
268
269# Pull in global settings.
270__MAKE_CONF?=/etc/make.conf
271.if exists(${__MAKE_CONF})
272.include "${__MAKE_CONF}"
273.endif
274
275# late include for customization
276.sinclude <local.sys.mk>
277
278.if defined(META_MODE)
279META_MODE:=	${META_MODE:O:u}
280.endif
281
282.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
283SHELL=	${__MAKE_SHELL}
284.SHELL: path=${__MAKE_SHELL}
285.endif
286
287# Tell bmake to expand -V VAR by default
288.MAKE.EXPAND_VARIABLES= yes
289
290# Tell bmake the makefile preference
291.MAKE.MAKEFILE_PREFERENCE= BSDmakefile makefile Makefile
292
293# Tell bmake to always pass job tokens, regardless of target depending on
294# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
295.MAKE.ALWAYS_PASS_JOB_QUEUE= yes
296
297# By default bmake does *not* use set -e
298# when running target scripts, this is a problem for many makefiles here.
299# So define a shell that will do what FreeBSD expects.
300.ifndef WITHOUT_SHELL_ERRCTL
301__MAKE_SHELL?=/bin/sh
302.SHELL: name=sh \
303	quiet="set -" echo="set -v" filter="set -" \
304	hasErrCtl=yes check="set -e" ignore="set +e" \
305	echoFlag=v errFlag=e \
306	path=${__MAKE_SHELL}
307.endif
308
309# Hack for ports compatibility. Historically, ports makefiles have
310# assumed they can examine MACHINE_CPU without including anything
311# because this was automatically included in sys.mk. For /usr/src,
312# this file has moved to being included from bsd.opts.mk. Until all
313# the ports files are modernized, and a reasonable transition
314# period has passed, include it while we're in a ports tree here
315# to preserve historic behavior.
316.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
317.include <bsd.cpu.mk>
318.endif
319
320.endif # ! Posix
321