3b26e5a453
dirdeps.mk: simplify computation of qualified vs unqualified dirdeps.
Note the importance of avoiding unresolved variables in DIRDEPS
Fix DIRDEP_LOADAVG_REPORT - expr(1) fails if expression evaluates to 0
Trim ${SRCTOP}/ from debug etc messages to make comparison easier.
Include number of DIRDEPS in debug output.
Trim ${SRCTOP}/ when exporting to env while building DIRDEPS_CACHE
to help avoid env exhaustion.
Use DIRDEPS_ALL_MACHINES_FILTER to better handle ALL_MACHINES
in complex build environments.
dirdeps-options.mk: use separate .undef for each variable
dirdeps-targets.mk: allow for '.' in DIRDEPS_TARGETS_DIRS
meta.autodep.mk: leverage ${.SUFFIXES} if we can.
meta.sys.mk: allow use in META_MODE vs DIRDEPS_BUILD
meta2deps.py: compute a list of dirdep extensions that map to current
TARGET_SPEC to avoid confusion.
Reviewed by: stevek
174 lines
5.3 KiB
Makefile
174 lines
5.3 KiB
Makefile
# $FreeBSD$
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# RCSid:
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# $Id: dirdeps-targets.mk,v 1.24 2020/12/11 18:15:43 sjg Exp $
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#
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# @(#) Copyright (c) 2019-2020 Simon J. Gerraty
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#
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# This file is provided in the hope that it will
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# be of use. There is absolutely NO WARRANTY.
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# Permission to copy, redistribute or otherwise
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# use this file is hereby granted provided that
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# the above copyright notice and this notice are
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# left intact.
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#
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# Please send copies of changes and bug-fixes to:
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# sjg@crufty.net
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#
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##
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# This makefile is used to set initial DIRDEPS for top-level build
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# targets.
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#
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# The basic idea is that we have a list of directories in
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# DIRDEPS_TARGETS_DIRS which are relative to SRCTOP.
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# When asked to make 'foo' we look for any directory named 'foo'
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# under DIRDEPS_TARGETS_DIRS.
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# We then search those dirs for any Makefile.depend*
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# Finally we select any that match conditions like REQUESTED_MACHINE
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# or TARGET_SPEC and initialize DIRDEPS accordingly.
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#
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# We will check each of the initial DIRDEPS for Makefile.dirdeps.options
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# and include any found.
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# This makes it feasible to tweak options like MK_DIRDEPS_CACHE
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# for a specific target.
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#
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# If MK_STATIC_DIRDEPS_CACHE is defined we will check if the
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# initial DIRDEPS has a static cache (Makefile.dirdeps.cache).
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# This only makes sense for seriously expensive targets.
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#
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.if ${.MAKE.LEVEL} == 0
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# pickup customizations
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.-include <local.dirdeps-targets.mk>
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# for DIRDEPS_BUILD this is how we prime the pump
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# include . to allow any directory to work as a target
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DIRDEPS_TARGETS_DIRS ?= targets targets/pseudo
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# these prefixes can modify how we behave
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# they need to be stripped when looking for target dirs
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DIRDEPS_TARGETS_PREFIX_LIST ?= pkg- build-
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# some .TARGETS need filtering
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DIRDEPS_TARGETS_FILTER += Nall
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# matching target dirs if any
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tdirs := ${.TARGETS:${DIRDEPS_TARGETS_FILTER:ts:}:${DIRDEPS_TARGETS_PREFIX_LIST:@p@S,^$p,,@:ts:}:@t@${DIRDEPS_TARGETS_DIRS:@d@$d/$t@}@:@d@${exists(${SRCTOP}/$d):?$d:}@}
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.if !empty(DEBUG_DIRDEPS_TARGETS)
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.info tdirs=${tdirs}
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.endif
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.if !empty(tdirs)
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# some things we know we want to ignore
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DIRDEPS_TARGETS_SKIP_LIST += \
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*~ \
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*.bak \
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*.inc \
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*.old \
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*.options \
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*.orig \
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*.rej \
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# the list of MACHINEs we consider
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DIRDEPS_TARGETS_MACHINE_LIST += \
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${ALL_MACHINE_LIST:U} \
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${PSEUDO_MACHINE_LIST:Ucommon host host32} \
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${TARGET_MACHINE_LIST}
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DIRDEPS_TARGETS_MACHINE_LIST := ${DIRDEPS_TARGETS_MACHINE_LIST:O:u}
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# raw Makefile.depend* list
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tdeps != 'cd' ${SRCTOP} && 'ls' -1 ${tdirs:O:u:@d@$d/${.MAKE.DEPENDFILE_PREFIX}*@:S,^./,,} 2> /dev/null; echo
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.if ${DEBUG_DIRDEPS_TARGETS:U:Mdep*} != ""
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.info tdeps=${tdeps}
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.endif
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# remove things we know we don't want
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tdeps := ${tdeps:${DIRDEPS_TARGETS_SKIP_LIST:${M_ListToSkip}}}
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.if ${DEBUG_DIRDEPS_TARGETS:U:Mdep*} != ""
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.info tdeps=${tdeps}
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.endif
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# plain entries (no qualifiers) these apply to any TARGET_SPEC
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ptdeps := ${tdeps:M*${.MAKE.DEPENDFILE_PREFIX}:S,/${.MAKE.DEPENDFILE_PREFIX},,}
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# MACHINE qualified entries
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mqtdeps := ${DIRDEPS_TARGETS_MACHINE_LIST:@m@${tdeps:M*.$m}@:S,/${.MAKE.DEPENDFILE_PREFIX},,}
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tqtdeps =
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.if ${TARGET_SPEC_VARS:[#]} > 1
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# TARGET_SPEC qualified entries
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.if !empty(TARGET_SPEC_LIST)
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# we have a list of valid TARGET_SPECS; use it
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tqtdeps := ${TARGET_SPEC_LIST:U:O:u:@t@${tdeps:M*.$t}@:S,/${.MAKE.DEPENDFILE_PREFIX},,}
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.else
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# do we have a list of valid tuple members for at least
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# the last tupple element? if so match on that
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TARGET_SPEC_LAST_LIST ?= ${${TARGET_SPEC_VARS:[-1]}_LIST}
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.if !empty(TARGET_SPEC_LAST_LIST)
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tqtdeps := ${TARGET_SPEC_LAST_LIST:U:O:u:@t@${tdeps:M*,$t}@:S,/${.MAKE.DEPENDFILE_PREFIX},,}
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.else
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# this is sub-optimal match MACHINE,
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tqtdeps := ${DIRDEPS_TARGETS_MACHINE_LIST:@m@${tdeps:M*.$m,*}@:S,/${.MAKE.DEPENDFILE_PREFIX},,}
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.endif
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.endif
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.endif
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# now work out what we want in DIRDEPS
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.if empty(REQUESTED_MACHINE)
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# we want them all just as found
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DIRDEPS = ${ptdeps} ${mqtdeps} ${tqtdeps}
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.else
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# we only want those that match REQUESTED_MACHINE/REQUESTED_TARGET_SPEC
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# or REQUESTED_TARGET_SPEC (TARGET_SPEC)
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DIRDEPS = \
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${ptdeps:@d@$d.${REQUESTED_TARGET_SPEC:U${TARGET_SPEC:U${REQUESTED_MACHINE}}}@} \
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${mqtdeps:M*.${REQUESTED_MACHINE}} \
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${tqtdeps:M*.${REQUESTED_TARGET_SPEC:U${TARGET_SPEC}}}
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.endif
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# clean up
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DIRDEPS := ${DIRDEPS:O:u}
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.if !empty(DEBUG_DIRDEPS_TARGETS)
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.for x in tdeps ptdeps mqtdeps tqtdeps DIRDEPS
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.info $x=${$x}
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.endfor
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.endif
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.endif
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# if we got DIRDEPS get to work
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.if !empty(DIRDEPS)
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DIRDEPS.dirs := ${DIRDEPS:S,^,${SRCTOP}/,:@d@${exists($d):?$d:${d:R}}@}
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# some targets want to tweak options we might want to process now
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.for m in ${DIRDEPS.dirs:S,$,/Makefile.dirdeps.options,}
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.-include <$m>
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.endfor
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.if defined(MK_STATIC_DIRDEPS_CACHE)
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# some targets are very expensive to compute dirdeps for
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# so we may have a static cache
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.for c in ${DIRDEPS.dirs:S,$,/Makefile.dirdeps.cache,}
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.if exists($c)
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STATIC_DIRDEPS_CACHE ?= $c
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.if ${MK_STATIC_DIRDEPS_CACHE} == "yes"
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DIRDEPS_CACHE ?= $c
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MK_DIRDEPS_CACHE = yes
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.endif
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.endif
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.endfor
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.if defined(STATIC_DIRDEPS_CACHE)
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.export STATIC_DIRDEPS_CACHE
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.endif
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.endif
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# allow a top-level makefile to do other stuff
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# before including dirdeps.mk
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.if ${MK_DIRDEPS_TARGETS_INCLUDE_DIRDEPS:Uyes} == "yes"
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.include <dirdeps.mk>
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.endif
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DIRDEPS_TARGETS_SKIP += all clean* destroy*
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.for t in ${.TARGETS:${DIRDEPS_TARGETS_SKIP:${M_ListToSkip}}}
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$t: dirdeps
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.endfor
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.endif
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.endif
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