xref: /freebsd/share/mk/sys.mk (revision bee3d4bf8ed55260d8cfc6d168ffa1afb49ef6a8)

#	from: @(#)sys.mk	8.2 (Berkeley) 3/21/94
# $FreeBSD$

unix		?=	We run FreeBSD, not UNIX.
.FreeBSD	?=	true

.if !defined(%POSIX)
#
# MACHINE_CPUARCH defines a collection of MACHINE_ARCH.  Machines with
# the same MACHINE_ARCH can run each other's binaries, so it necessarily
# has word size and endian swizzled in.  However, the source files for
# these machines often are shared amongst all combinations of size
# and/or endian.  This is called MACHINE_CPU in NetBSD, but that's used
# for something different in FreeBSD.
#
__TO_CPUARCH=C/arm(v[67])?/arm/:C/powerpc(64|64le|spe)/powerpc/:C/riscv64/riscv/
MACHINE_CPUARCH=${MACHINE_ARCH:${__TO_CPUARCH}}
.endif

__DEFAULT_YES_OPTIONS+= \
	UNIFIED_OBJDIR

# src.sys.obj.mk enables AUTO_OBJ by default if possible but it is otherwise
# disabled.  Ensure src.conf.5 shows it as default on.
.if make(showconfig)
__DEFAULT_YES_OPTIONS+= AUTO_OBJ
.endif

# Some options we need now
__DEFAULT_NO_OPTIONS= \
	DIRDEPS_BUILD \
	DIRDEPS_CACHE

__DEFAULT_DEPENDENT_OPTIONS= \
	AUTO_OBJ/DIRDEPS_BUILD \
	META_ERROR_TARGET/DIRDEPS_BUILD \
	META_MODE/DIRDEPS_BUILD \
	STAGING/DIRDEPS_BUILD \
	SYSROOT/DIRDEPS_BUILD

__ENV_ONLY_OPTIONS:= \
	${__DEFAULT_NO_OPTIONS} \
	${__DEFAULT_YES_OPTIONS} \
	${__DEFAULT_DEPENDENT_OPTIONS:H}

# early include for customization
# see local.sys.mk below
# Not included when building in fmake compatibility mode (still needed
# for older system support)
.if defined(.PARSEDIR)
.sinclude <local.sys.env.mk>

.include <bsd.mkopt.mk>

# Disable MK_META_MODE with make -B
.if ${MK_META_MODE} == "yes" && defined(.MAKEFLAGS) && ${.MAKEFLAGS:M-B}
MK_META_MODE=	no
.endif

.if ${MK_DIRDEPS_BUILD} == "yes"
.-include <sys.dirdeps.mk>
.endif
.if ${MK_META_MODE} == "yes"
.if !exists(/dev/filemon) || defined(NO_FILEMON)
META_MODE+= nofilemon
.endif
.-include <meta.sys.mk>
.endif
META_MODE?= normal
.export META_MODE
.MAKE.MODE?= ${META_MODE}
.if !empty(.MAKE.MODE:Mmeta)
.if !defined(NO_META_IGNORE_HOST)
# Ignore host file changes that will otherwise cause
# buildworld -> installworld -> buildworld to rebuild everything.
# Since the build is self-reliant and bootstraps everything it needs,
# this should not be a real problem for incremental builds.
# XXX: This relies on the existing host tools retaining ABI compatibility
# through upgrades since they won't be rebuilt on header/library changes.
# This is mitigated by Makefile.inc1 for known-ABI-breaking revisions.
# Note that these are prefix matching, so /lib matches /libexec.
.MAKE.META.IGNORE_PATHS+= \
	${__MAKE_SHELL} \
	/bin \
	/lib \
	/rescue \
	/sbin \
	/usr/bin \
	/usr/lib \
	/usr/sbin \
	/usr/share \

.else
NO_META_IGNORE_HOST_HEADERS=	1
.endif
.if !defined(NO_META_IGNORE_HOST_HEADERS)
.MAKE.META.IGNORE_PATHS+= /usr/include
.endif
# We do not want everything out-of-date just because
# some unrelated shared lib updated this.
.MAKE.META.IGNORE_PATHS+= /usr/local/etc/libmap.d
.endif	# !empty(.MAKE.MODE:Mmeta)

.if ${MK_AUTO_OBJ} == "yes"
# This needs to be done early - before .PATH is computed
# Don't do this for 'make showconfig' as it enables all options where meta mode
# is not expected.
.if !make(showconfig) && !make(print-dir) && !make(test-system-*) && \
    empty(.MAKEFLAGS:M-[nN])
.sinclude <auto.obj.mk>
.endif
.endif	# ${MK_AUTO_OBJ} == "yes"
.else # bmake
.include <bsd.mkopt.mk>
.endif

# If the special target .POSIX appears (without prerequisites or
# commands) before the first noncomment line in the makefile, make shall
# process the makefile as specified by the Posix 1003.2 specification.
# make(1) sets the special macro %POSIX in this case (to the actual
# value "1003.2", for what it's worth).
#
# The rules below use this macro to distinguish between Posix-compliant
# and default behaviour.
#
# This functionality is currently broken, since make(1) processes sys.mk
# before reading any other files, and consequently has no opportunity to
# set the %POSIX macro before we read this point.

.if defined(%POSIX)
.SUFFIXES:	.o .c .y .l .a .sh .f
.else
.SUFFIXES:	.out .a .o .bco .llo .c .cc .cpp .cxx .C .m .F .f .e .r .y .l .S .asm .s .cl .p .h .sh
.endif

AR		?=	ar
.if defined(%POSIX)
ARFLAGS		?=	-rv
.else
ARFLAGS		?=	-crsD
.endif
RANLIB		?=	ranlib
.if !defined(%POSIX)
RANLIBFLAGS	?=	-D
.endif

AS		?=	as
AFLAGS		?=
ACFLAGS		?=

.if defined(%POSIX)
CC		?=	c89
CFLAGS		?=	-O
.else
CC		?=	cc
CFLAGS		?=	-O2 -pipe
.if defined(NO_STRICT_ALIASING)
CFLAGS		+=	-fno-strict-aliasing
.endif
.endif
IR_CFLAGS	?=	${STATIC_CFLAGS:N-O*} ${CFLAGS:N-O*}
PO_CFLAGS	?=	${CFLAGS}

# cp(1) is used to copy source files to ${.OBJDIR}, make sure it can handle
# read-only files as non-root by passing -f.
CP		?=	cp -f

CPP		?=	cpp

# C Type Format data is required for DTrace
CTFFLAGS	?=	-L VERSION

CTFCONVERT	?=	ctfconvert
CTFMERGE	?=	ctfmerge

.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
CTFFLAGS	+=	-g
.endif

CXX		?=	c++
CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign:N-Wold-style-definition}
IR_CXXFLAGS	?=	${STATIC_CXXFLAGS:N-O*} ${CXXFLAGS:N-O*}
PO_CXXFLAGS	?=	${CXXFLAGS}

DTRACE		?=	dtrace
DTRACEFLAGS	?=	-C -x nolibs

.if empty(.MAKEFLAGS:M-s)
ECHO		?=	echo
ECHODIR		?=	echo
.else
ECHO		?=	true
.if ${.MAKEFLAGS:M-s} == "-s"
ECHODIR		?=	echo
.else
ECHODIR		?=	true
.endif
.endif

ELFCTL		?=	elfctl

.if ${.MAKEFLAGS:M-N}
# bmake -N is supposed to skip executing anything but it does not skip
# exeucting '+' commands.  The '+' feature is used where .MAKE
# is not safe for the entire target.  -N is intended to skip building sub-makes
# so it executing '+' commands is not right.  Work around the bug by not
# setting '+' when -N is used.
_+_		?=
.else
_+_		?=	+
.endif

.if defined(%POSIX)
FC		?=	fort77
FFLAGS		?=	-O 1
.else
FC		?=	f77
FFLAGS		?=	-O
.endif
EFLAGS		?=

INSTALL		?=	${INSTALL_CMD:Uinstall}

LEX		?=	lex
LFLAGS		?=

# LDFLAGS is for CC, _LDFLAGS is for LD.  Generate _LDFLAGS from
# LDFLAGS by stripping -Wl, from pass-through arguments and dropping
# compiler driver flags (e.g. -mabi=*) that conflict with flags to LD.
LD		?=	ld
LDFLAGS		?=
_LDFLAGS	=	${LDFLAGS:S/-Wl,//g:N-mabi=*:N-fuse-ld=*:N--ld-path=*:N-fsanitize=*:N-fno-sanitize=*}

MAKE		?=	make

.if !defined(%POSIX)
LLVM_LINK	?=	llvm-link

LORDER		?=	lorder

NM		?=	nm
NMFLAGS		?=

OBJC		?=	cc
OBJCFLAGS	?=	${OBJCINCLUDES} ${CFLAGS} -Wno-import

OBJCOPY		?=	objcopy

PC		?=	pc
PFLAGS		?=

RC		?=	f77
RFLAGS		?=

TSORT		?=	tsort
TSORTFLAGS	?=	-q
.endif

SHELL		?=	sh

.if !defined(%POSIX)
SIZE		?=	size
STRIPBIN	?=	strip
.endif

YACC		?=	yacc
.if defined(%POSIX)
YFLAGS		?=
.else
YFLAGS		?=	-d
.endif

.if defined(%POSIX)

.include "bsd.suffixes-posix.mk"

.else

# non-Posix rule set
.include "bsd.suffixes.mk"

# Pull in global settings.
__MAKE_CONF?=/etc/make.conf
.if exists(${__MAKE_CONF})
.include "${__MAKE_CONF}"
.endif

# late include for customization
.sinclude <local.sys.mk>

.if defined(META_MODE)
META_MODE:=	${META_MODE:O:u}
.endif

.if defined(__MAKE_SHELL) && !empty(__MAKE_SHELL)
SHELL=	${__MAKE_SHELL}
.SHELL: path=${__MAKE_SHELL}
.endif

# Tell bmake to expand -V VAR by default
.MAKE.EXPAND_VARIABLES= yes

# Tell bmake the makefile preference
MAKEFILE_PREFERENCE?= BSDmakefile makefile Makefile
.MAKE.MAKEFILE_PREFERENCE= ${MAKEFILE_PREFERENCE}

# Tell bmake to always pass job tokens, regardless of target depending on
# .MAKE or looking like ${MAKE}/${.MAKE}/$(MAKE)/$(.MAKE)/make.
.MAKE.ALWAYS_PASS_JOB_QUEUE= yes

# By default bmake does *not* use set -e
# when running target scripts, this is a problem for many makefiles here.
# So define a shell that will do what FreeBSD expects.
.ifndef WITHOUT_SHELL_ERRCTL
__MAKE_SHELL?=/bin/sh
.SHELL: name=sh \
	quiet="set -" echo="set -v" filter="set -" \
	hasErrCtl=yes check="set -e" ignore="set +e" \
	echoFlag=v errFlag=e \
	path=${__MAKE_SHELL}
.endif

# Hack for ports compatibility. Historically, ports makefiles have
# assumed they can examine MACHINE_CPU without including anything
# because this was automatically included in sys.mk. For /usr/src,
# this file has moved to being included from bsd.opts.mk. Until all
# the ports files are modernized, and a reasonable transition
# period has passed, include it while we're in a ports tree here
# to preserve historic behavior.
.if exists(${.CURDIR}/../../Mk/bsd.port.mk)
.include <bsd.cpu.mk>
.endif

.endif # ! Posix