6251c65a82
This helps guard against bugs in manually edited Makefile.depend files, and avoids the need to call realpath from the Makefile.depend file.
652 lines
22 KiB
Makefile
652 lines
22 KiB
Makefile
# $Id: dirdeps.mk,v 1.54 2015/06/08 20:55:11 sjg Exp $
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# Copyright (c) 2010-2013, Juniper Networks, Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Much of the complexity here is for supporting cross-building.
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# If a tree does not support that, simply using plain Makefile.depend
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# should provide sufficient clue.
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# Otherwise the recommendation is to use Makefile.depend.${MACHINE}
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# as expected below.
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# Note: this file gets multiply included.
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# This is what we do with DIRDEPS
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# DIRDEPS:
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# This is a list of directories - relative to SRCTOP, it is
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# normally only of interest to .MAKE.LEVEL 0.
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# In some cases the entry may be qualified with a .<machine>
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# or .<target_spec> suffix (see TARGET_SPEC_VARS below),
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# for example to force building something for the pseudo
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# machines "host" or "common" regardless of current ${MACHINE}.
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#
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# All unqualified entries end up being qualified with .${TARGET_SPEC}
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# and partially qualified (if TARGET_SPEC_VARS has multiple
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# entries) are also expanded to a full .<target_spec>.
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# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC
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# correctly when visiting each entry.
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#
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# The fully qualified directory entries are used to construct a
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# dependency graph that will drive the build later.
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#
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# Also, for each fully qualified directory target, we will search
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# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional
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# dependencies. We use Makefile.depend (default value for
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# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to
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# distinguish them from others.
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#
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# Each Makefile.depend file sets DEP_RELDIR to be the
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# the RELDIR (path relative to SRCTOP) for its directory, and
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# since each Makefile.depend file includes dirdeps.mk, this
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# processing is recursive and results in .MAKE.LEVEL 0 learning the
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# dependencies of the tree wrt the initial directory (_DEP_RELDIR).
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#
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# BUILD_AT_LEVEL0
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# Indicates whether .MAKE.LEVEL 0 builds anything:
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# if "no" sub-makes are used to build everything,
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# if "yes" sub-makes are only used to build for other machines.
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# It is best to use "no", but this can require fixing some
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# makefiles to not do anything at .MAKE.LEVEL 0.
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#
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# TARGET_SPEC_VARS
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# The default value is just MACHINE, and for most environments
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# this is sufficient. The _DIRDEP_USE target actually sets
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# both MACHINE and TARGET_SPEC to the suffix of the current
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# target so that in the general case TARGET_SPEC can be ignored.
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#
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# If more than MACHINE is needed then sys.mk needs to decompose
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# TARGET_SPEC and set the relevant variables accordingly.
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# It is important that MACHINE be included in and actually be
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# the first member of TARGET_SPEC_VARS. This allows other
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# variables to be considered optional, and some of the treatment
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# below relies on MACHINE being the first entry.
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# Note: TARGET_SPEC cannot contain any '.'s so the target
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# triple used by compiler folk won't work (directly anyway).
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#
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# For example:
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#
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# # Always list MACHINE first,
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# # other variables might be optional.
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# TARGET_SPEC_VARS = MACHINE TARGET_OS
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# .if ${TARGET_SPEC:Uno:M*,*} != ""
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# _tspec := ${TARGET_SPEC:S/,/ /g}
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# MACHINE := ${_tspec:[1]}
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# TARGET_OS := ${_tspec:[2]}
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# # etc.
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# # We need to stop that TARGET_SPEC affecting any submakes
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# # and deal with MACHINE=${TARGET_SPEC} in the environment.
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# TARGET_SPEC =
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# # export but do not track
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# .export-env TARGET_SPEC
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# .export ${TARGET_SPEC_VARS}
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# .for v in ${TARGET_SPEC_VARS:O:u}
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# .if empty($v)
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# .undef $v
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# .endif
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# .endfor
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# .endif
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# # make sure we know what TARGET_SPEC is
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# # as we may need it to find Makefile.depend*
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# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
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#
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# touch this at your peril
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_DIRDEP_USE_LEVEL?= 0
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.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL}
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# only the first instance is interested in all this
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# First off, we want to know what ${MACHINE} to build for.
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# This can be complicated if we are using a mixture of ${MACHINE} specific
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# and non-specific Makefile.depend*
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.if !target(_DIRDEP_USE)
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# do some setup we only need once
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_CURDIR ?= ${.CURDIR}
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_OBJDIR ?= ${.OBJDIR}
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now_utc = ${%s:L:gmtime}
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.if !defined(start_utc)
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start_utc := ${now_utc}
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.endif
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# make sure these are empty to start with
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_DEP_TARGET_SPEC =
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_DIRDEP_CHECKED =
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# If TARGET_SPEC_VARS is other than just MACHINE
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# it should be set by sys.mk or similar by now.
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# TARGET_SPEC must not contain any '.'s.
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TARGET_SPEC_VARS ?= MACHINE
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# this is what we started with
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TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
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# this is what we mostly use below
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DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,}
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# make sure we have defaults
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.for v in ${TARGET_SPEC_VARS}
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DEP_$v ?= ${$v}
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.endfor
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.if ${TARGET_SPEC_VARS:[#]} > 1
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# Ok, this gets more complex (putting it mildly).
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# In order to stay sane, we need to ensure that all the build_dirs
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# we compute below are fully qualified wrt DEP_TARGET_SPEC.
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# The makefiles may only partially specify (eg. MACHINE only),
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# so we need to construct a set of modifiers to fill in the gaps.
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# jot 10 should output 1 2 3 .. 10
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JOT ?= jot
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_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh}
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# this handles unqualified entries
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M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC};
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# there needs to be at least one item missing for these to make sense
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.for i in ${_tspec_x:[2..-1]}
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_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,}
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_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,}
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M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i};
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.endfor
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.else
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# A harmless? default.
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M_dep_qual_fixes = U
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.endif
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.if !defined(.MAKE.DEPENDFILE_PREFERENCE)
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# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater?
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# you really want this set by sys.mk or similar
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.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T}
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.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}"
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.if ${TARGET_SPEC} != ${MACHINE}
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.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE}
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.endif
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.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}
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.endif
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.endif
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_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T}
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_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*}
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# for machine specific dependfiles we require ${MACHINE} to be at the end
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# also for the sake of sanity we require a common prefix
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.if !defined(.MAKE.DEPENDFILE_PREFIX)
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# knowing .MAKE.DEPENDFILE_PREFIX helps
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.if !empty(_machine_dependfiles)
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.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R}
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.else
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.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T}
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.endif
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.endif
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# this is how we identify non-machine specific dependfiles
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N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}}
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.endif # !target(_DIRDEP_USE)
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# if we were included recursively _DEP_TARGET_SPEC should be valid.
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.if empty(_DEP_TARGET_SPEC)
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# we may or may not have included a dependfile yet
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.if defined(.INCLUDEDFROMFILE)
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_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*}
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.else
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_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]}
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.endif
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.if ${_debug_reldir:U0}
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.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}'
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.endif
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.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == ""
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# this is all we have to work with
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DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}}
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_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC}
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.else
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_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E}
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.endif
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.if !empty(_last_dependfile)
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# record that we've read dependfile for this
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_DIRDEP_CHECKED += ${_CURDIR}.${TARGET_SPEC}
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.endif
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.endif
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# by now _DEP_TARGET_SPEC should be set, parse it.
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.if ${TARGET_SPEC_VARS:[#]} > 1
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# we need to parse DEP_MACHINE may or may not contain more info
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_tspec := ${_DEP_TARGET_SPEC:S/,/ /g}
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.for i in ${_tspec_x}
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DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]}
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.endfor
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.for v in ${TARGET_SPEC_VARS:O:u}
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.if empty(DEP_$v)
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.undef DEP_$v
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.endif
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.endfor
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.else
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DEP_MACHINE := ${_DEP_TARGET_SPEC}
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.endif
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# pickup customizations
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# as below you can use !target(_DIRDEP_USE) to protect things
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# which should only be done once.
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.-include "local.dirdeps.mk"
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# the first time we are included the _DIRDEP_USE target will not be defined
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# we can use this as a clue to do initialization and other one time things.
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.if !target(_DIRDEP_USE)
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# make sure this target exists
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dirdeps: beforedirdeps .WAIT
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beforedirdeps:
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# We normally expect to be included by Makefile.depend.*
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# which sets the DEP_* macros below.
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DEP_RELDIR ?= ${RELDIR}
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# this can cause lots of output!
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# set to a set of glob expressions that might match RELDIR
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DEBUG_DIRDEPS ?= no
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# remember the initial value of DEP_RELDIR - we test for it below.
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_DEP_RELDIR := ${DEP_RELDIR}
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# things we skip for host tools
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SKIP_HOSTDIR ?=
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NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}}
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# things we always skip
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# SKIP_DIRDEPS allows for adding entries on command line.
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SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS}
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SKIP_DIR.host += ${SKIP_HOSTDIR}
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DEP_SKIP_DIR = ${SKIP_DIR} \
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${SKIP_DIR.${DEP_TARGET_SPEC}:U} \
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${SKIP_DIR.${DEP_MACHINE}:U} \
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${SKIP_DIRDEPS.${DEP_MACHINE}:U}
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NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}}
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.if defined(NO_DIRDEPS) || defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS)
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# confine ourselves to the original dir
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DIRDEPS_FILTER += M${_DEP_RELDIR}*
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.endif
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# this is what we run below
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DIRDEP_MAKE?= ${.MAKE}
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# we suppress SUBDIR when visiting the leaves
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# we assume sys.mk will set MACHINE_ARCH
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# you can add extras to DIRDEP_USE_ENV
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# if there is no makefile in the target directory, we skip it.
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_DIRDEP_USE: .USE .MAKE
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@for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \
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test -s ${.TARGET:R}/$$m || continue; \
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echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \
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MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \
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TARGET_SPEC=${.TARGET:E} \
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MACHINE=${.TARGET:E} \
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${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \
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break; \
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done
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.ifdef ALL_MACHINES
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# this is how you limit it to only the machines we have been built for
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# previously.
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.if empty(ONLY_MACHINE_LIST)
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.if !empty(ALL_MACHINE_LIST)
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# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else
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_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo
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.else
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_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo
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.endif
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_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u}
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.else
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_only_machines := ${ONLY_MACHINE_LIST}
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.endif
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.if empty(_only_machines)
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# we must be boot-strapping
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_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}
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.endif
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.else # ! ALL_MACHINES
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# if ONLY_MACHINE_LIST is set, we are limited to that
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# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST
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# otherwise DEP_MACHINE is it - so DEP_MACHINE will match.
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_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}}
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.endif
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.if !empty(NOT_MACHINE_LIST)
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_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}}
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.endif
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# make sure we have a starting place?
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DIRDEPS ?= ${RELDIR}
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.endif # target
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# if repeatedly building the same target,
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# we can avoid the overhead of re-computing the tree dependencies.
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MK_DIRDEPS_CACHE ?= no
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BUILD_DIRDEPS_CACHE ?= no
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BUILD_DIRDEPS ?= yes
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.if !defined(NO_DIRDEPS)
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.if ${MK_DIRDEPS_CACHE} == "yes"
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# this is where we will cache all our work
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DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.}
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# just ensure this exists
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build-dirdeps:
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M_oneperline = @x@\\${.newline} $$x@
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.if ${BUILD_DIRDEPS_CACHE} == "no"
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.if !target(dirdeps-cached)
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# we do this via sub-make
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BUILD_DIRDEPS = no
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dirdeps: dirdeps-cached
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dirdeps-cached: ${DIRDEPS_CACHE} .MAKE
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@echo "${TRACER}Using ${DIRDEPS_CACHE}"
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@MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \
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dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no
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# these should generally do
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BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE}
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BUILD_DIRDEPS_TARGETS ?= ${.TARGETS}
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# we need the .meta file to ensure we update if
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# any of the Makefile.depend* changed.
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# We do not want to compare the command line though.
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${DIRDEPS_CACHE}: .META .NOMETA_CMP
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+@{ echo '# Autogenerated - do NOT edit!'; echo; \
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echo 'BUILD_DIRDEPS=no'; echo; \
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echo '.include <dirdeps.mk>'; \
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} > ${.TARGET}.new
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+@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \
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DIRDEPS="${DIRDEPS}" \
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MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \
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${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \
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.MAKE.DEPENDFILE=.none \
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3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \
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mv ${.TARGET}.new ${.TARGET}
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.endif
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.elif !target(_count_dirdeps)
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# we want to capture the dirdeps count in the cache
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.END: _count_dirdeps
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_count_dirdeps: .NOMETA
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@echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3
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.endif
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.elif !make(dirdeps) && !target(_count_dirdeps)
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beforedirdeps: _count_dirdeps
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_count_dirdeps: .NOMETA
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@echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`"
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.endif
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.endif
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.if ${BUILD_DIRDEPS} == "yes"
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.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != ""
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_debug_reldir = 1
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.else
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_debug_reldir = 0
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.endif
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.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != ""
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_debug_search = 1
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.else
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_debug_search = 0
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.endif
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# the rest is done repeatedly for every Makefile.depend we read.
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# if we are anything but the original dir we care only about the
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# machine type we were included for..
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.if ${DEP_RELDIR} == "."
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_this_dir := ${SRCTOP}
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.else
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|
_this_dir := ${SRCTOP}/${DEP_RELDIR}
|
|
.endif
|
|
|
|
# on rare occasions, there can be a need for extra help
|
|
_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc
|
|
.-include "${_dep_hack}"
|
|
|
|
.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC}
|
|
# this should be all
|
|
_machines := ${DEP_MACHINE}
|
|
.else
|
|
# this is the machine list we actually use below
|
|
_machines := ${_only_machines}
|
|
|
|
.if defined(HOSTPROG) || ${DEP_MACHINE} == "host"
|
|
# we need to build this guy's dependencies for host as well.
|
|
_machines += host
|
|
.endif
|
|
|
|
_machines := ${_machines:O:u}
|
|
.endif
|
|
|
|
.if ${TARGET_SPEC_VARS:[#]} > 1
|
|
# we need to tweak _machines
|
|
_dm := ${DEP_MACHINE}
|
|
# apply the same filtering that we do when qualifying DIRDEPS.
|
|
# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.'
|
|
_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
|
|
DEP_MACHINE := ${_dm}
|
|
.endif
|
|
|
|
# reset each time through
|
|
_build_dirs =
|
|
|
|
.if ${DEP_RELDIR} == ${_DEP_RELDIR}
|
|
# pickup other machines for this dir if necessary
|
|
.if ${BUILD_AT_LEVEL0:Uyes} == "no"
|
|
_build_dirs += ${_machines:@m@${_CURDIR}.$m@}
|
|
.else
|
|
_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@}
|
|
.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC}
|
|
# pickup local dependencies now
|
|
.-include <.depend>
|
|
.endif
|
|
.endif
|
|
.endif
|
|
|
|
.if ${_debug_reldir}
|
|
.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}'
|
|
.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}'
|
|
.endif
|
|
|
|
.if !empty(DIRDEPS)
|
|
# these we reset each time through as they can depend on DEP_MACHINE
|
|
DEP_DIRDEPS_FILTER = \
|
|
${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \
|
|
${DIRDEPS_FILTER.${DEP_MACHINE}:U} \
|
|
${DIRDEPS_FILTER:U}
|
|
.if empty(DEP_DIRDEPS_FILTER)
|
|
# something harmless
|
|
DEP_DIRDEPS_FILTER = U
|
|
.endif
|
|
|
|
# this is what we start with
|
|
__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@}
|
|
|
|
# some entries may be qualified with .<machine>
|
|
# the :M*/*/*.* just tries to limit the dirs we check to likely ones.
|
|
# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd
|
|
__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@}
|
|
__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}}
|
|
|
|
.if ${DEP_RELDIR} == ${_DEP_RELDIR}
|
|
# if it was called out - we likely need it.
|
|
__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@}
|
|
__qual_depdirs += ${__hostdpadd}
|
|
.endif
|
|
|
|
.if ${_debug_reldir}
|
|
.info depdirs=${__depdirs}
|
|
.info qualified=${__qual_depdirs}
|
|
.info unqualified=${__unqual_depdirs}
|
|
.endif
|
|
|
|
# _build_dirs is what we will feed to _DIRDEP_USE
|
|
_build_dirs += \
|
|
${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \
|
|
${__qual_depdirs:N*.host} \
|
|
${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \
|
|
${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@}
|
|
|
|
# qualify everything now
|
|
_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u}
|
|
|
|
.endif # empty DIRDEPS
|
|
|
|
# Normally if doing make -V something,
|
|
# we do not want to waste time chasing DIRDEPS
|
|
# but if we want to count the number of Makefile.depend* read, we do.
|
|
.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == ""
|
|
.if !empty(_build_dirs)
|
|
.if ${BUILD_DIRDEPS_CACHE} == "yes"
|
|
x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \
|
|
echo 'dirdeps: ${_build_dirs:${M_oneperline}}'; echo; } >&3; echo
|
|
x!= { ${_build_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo
|
|
.else
|
|
# this makes it all happen
|
|
dirdeps: ${_build_dirs}
|
|
.endif
|
|
${_build_dirs}: _DIRDEP_USE
|
|
|
|
.if ${_debug_reldir}
|
|
.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs}
|
|
.endif
|
|
|
|
# this builds the dependency graph
|
|
.for m in ${_machines}
|
|
# it would be nice to do :N${.TARGET}
|
|
.if !empty(__qual_depdirs)
|
|
.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m}
|
|
.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != ""
|
|
.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q}
|
|
.endif
|
|
.if ${BUILD_DIRDEPS_CACHE} == "yes"
|
|
x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo
|
|
.else
|
|
${_this_dir}.$m: ${_build_dirs:M*.$q}
|
|
.endif
|
|
.endfor
|
|
.endif
|
|
.if ${_debug_reldir}
|
|
.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m}
|
|
.endif
|
|
.if ${BUILD_DIRDEPS_CACHE} == "yes"
|
|
x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo
|
|
.else
|
|
${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m}
|
|
.endif
|
|
.endfor
|
|
|
|
.endif
|
|
|
|
# Now find more dependencies - and recurse.
|
|
.for d in ${_build_dirs}
|
|
.if ${_DIRDEP_CHECKED:M$d} == ""
|
|
# once only
|
|
_DIRDEP_CHECKED += $d
|
|
.if ${_debug_search}
|
|
.info checking $d
|
|
.endif
|
|
# Note: _build_dirs is fully qualifed so d:R is always the directory
|
|
.if exists(${d:R})
|
|
# Warning: there is an assumption here that MACHINE is always
|
|
# the first entry in TARGET_SPEC_VARS.
|
|
# If TARGET_SPEC and MACHINE are insufficient, you have a problem.
|
|
_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]}
|
|
.if !empty(_m)
|
|
# M_dep_qual_fixes isn't geared to Makefile.depend
|
|
_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}}
|
|
.if ${_debug_search}
|
|
.info Looking for ${_qm}
|
|
.endif
|
|
# we pass _DEP_TARGET_SPEC to tell the next step what we want
|
|
_DEP_TARGET_SPEC := ${d:E}
|
|
# some makefiles may still look at this
|
|
_DEP_MACHINE := ${d:E:C/,.*//}
|
|
# set this "just in case"
|
|
# we can skip :tA since we computed the path above
|
|
DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,}
|
|
# and reset this
|
|
DIRDEPS =
|
|
.if ${_debug_reldir} && ${_qm} != ${_m}
|
|
.info loading ${_m} for ${d:E}
|
|
.endif
|
|
.include <${_m}>
|
|
.endif
|
|
.endif
|
|
.endif
|
|
.endfor
|
|
|
|
.endif # -V
|
|
.endif # BUILD_DIRDEPS
|
|
|
|
.elif ${.MAKE.LEVEL} > 42
|
|
.error You should have stopped recursing by now.
|
|
.else
|
|
# we are building something
|
|
DEP_RELDIR := ${RELDIR}
|
|
_DEP_RELDIR := ${RELDIR}
|
|
# pickup local dependencies
|
|
.-include <.depend>
|
|
.endif
|
|
|
|
# bootstrapping new dependencies made easy?
|
|
.if (make(bootstrap) || make(bootstrap-recurse)) && !target(bootstrap)
|
|
|
|
.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T})
|
|
# stop here
|
|
${.TARGETS:Mboot*}:
|
|
.else
|
|
# find a Makefile.depend to use as _src
|
|
_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo
|
|
.if empty(_src)
|
|
.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}
|
|
.endif
|
|
|
|
_src?= ${.MAKE.DEPENDFILE:T}
|
|
|
|
bootstrap-this: .NOTMAIN
|
|
@echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T}
|
|
(cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T})
|
|
|
|
bootstrap: bootstrap-recurse
|
|
bootstrap-recurse: bootstrap-this
|
|
|
|
_mf := ${.PARSEFILE}
|
|
bootstrap-recurse: .NOTMAIN .MAKE
|
|
@cd ${SRCTOP} && \
|
|
for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \
|
|
test -d $$d || d=$${d%.*}; \
|
|
test -d $$d || continue; \
|
|
echo "Checking $$d for bootstrap ..."; \
|
|
(cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \
|
|
done
|
|
|
|
.endif
|
|
.endif
|