263 lines
7.8 KiB
Makefile
263 lines
7.8 KiB
Makefile
# $Id: meta.autodep.mk,v 1.32 2012/11/13 00:44:26 sjg Exp $
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#
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# @(#) Copyright (c) 2010, 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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_this ?= ${.PARSEFILE}
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.if !target(__${_this}__)
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__${_this}__: .NOTMAIN
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.-include "local.autodep.mk"
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.if defined(SRCS)
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# it would be nice to be able to query .SUFFIXES
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OBJ_EXTENSIONS+= .o .po .lo .So
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# explicit dependencies help short-circuit .SUFFIX searches
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SRCS_DEP_FILTER+= N*.[hly]
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.for s in ${SRCS:${SRCS_DEP_FILTER:O:u:ts:}}
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.for e in ${OBJ_EXTENSIONS:O:u}
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.if !target(${s:T:R}$e)
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${s:T:R}$e: $s
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.endif
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.endfor
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.endfor
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.endif
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.if make(gendirdeps)
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# you are supposed to know what you are doing!
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UPDATE_DEPENDFILE = yes
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.elif !empty(.TARGETS) && !make(all)
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# do not update the *depend* files
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# unless we are building the entire directory or the default target.
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# NO means don't update .depend - or Makefile.depend*
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# no means update .depend but not Makefile.depend*
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UPDATE_DEPENDFILE = NO
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.elif ${.MAKEFLAGS:M-k} != ""
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# it is a bad idea to update anything
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UPDATE_DEPENDFILE = NO
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.endif
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_CURDIR ?= ${.CURDIR}
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_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T}
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.if ${.MAKE.LEVEL} == 0
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.if ${BUILD_AT_LEVEL0:Uyes:tl} == "no"
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UPDATE_DEPENDFILE = NO
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.endif
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.endif
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.if !exists(${_DEPENDFILE})
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_bootstrap_dirdeps = yes
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.endif
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_bootstrap_dirdeps ?= no
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UPDATE_DEPENDFILE ?= yes
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.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
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.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE}
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.endif
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.if !empty(XMAKE_META_FILE)
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.if exists(${.OBJDIR}/${XMAKE_META_FILE})
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# we cannot get accurate dependencies from an update build
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UPDATE_DEPENDFILE = NO
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.else
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META_XTRAS += ${XMAKE_META_FILE}
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.endif
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.endif
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.if ${_bootstrap_dirdeps} == "yes" || exists(${_DEPENDFILE})
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# if it isn't supposed to be touched by us the Makefile should have
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# UPDATE_DEPENDFILE = no
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WANT_UPDATE_DEPENDFILE ?= yes
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.endif
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.if ${WANT_UPDATE_DEPENDFILE:Uno:tl} != "no"
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.if ${.MAKE.MODE:Mmeta*} == "" || ${.MAKE.MODE:M*read*} != ""
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UPDATE_DEPENDFILE = no
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.endif
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.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
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.info ${_DEPENDFILE:S,${SRCTOP}/,,} update=${UPDATE_DEPENDFILE}
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.endif
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.if ${UPDATE_DEPENDFILE:tl} == "yes"
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# sometimes we want .meta files generated to aid debugging/error detection
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# but do not want to consider them for dependencies
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# for example the result of running configure
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# just make sure this is not empty
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META_FILE_FILTER ?= N.meta
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.if !empty(DPADD)
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# if we have any non-libs in DPADD,
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# they probably need to be paid attention to
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.if !empty(DPLIBS)
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FORCE_DPADD = ${DPADD:${DPLIBS:${M_ListToSkip}}:${DPADD_LAST:${M_ListToSkip}}}
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.else
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_nonlibs := ${DPADD:T:Nlib*:N*include}
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.if !empty(_nonlibs)
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FORCE_DPADD += ${_nonlibs:@x@${DPADD:M*/$x}@}
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.endif
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.endif
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.endif
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.if !make(gendirdeps)
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.END: gendirdeps
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.endif
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# if we don't have OBJS, then .depend isn't useful
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.if !target(.depend) && (!empty(OBJS) || ${.ALLTARGETS:M*.o} != "")
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# some makefiles and/or targets contain
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# circular dependencies if you dig too deep
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# (as meta mode is apt to do)
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# so we provide a means of supressing them.
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# the input to the loop below is target: dependency
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# with just one dependency per line.
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# Also some targets are not really local, or use random names.
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# Use local.autodep.mk to provide local additions!
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SUPPRESS_DEPEND += \
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${SB:S,/,_,g}* \
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*:y.tab.c \
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*.c:*.c \
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*.h:*.h
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.NOPATH: .depend
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# we use ${.MAKE.META.CREATED} to trigger an update but
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# we process using ${.MAKE.META.FILES}
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# the double $$ defers initial evaluation
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# if necessary, we fake .po dependencies, just so the result
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# in Makefile.depend* is stable
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# The current objdir may be refered to in various ways
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OBJDIR_REFS += ${.OBJDIR} ${.OBJDIR:tA} ${_OBJDIR} ${RELOBJTOP}/${RELDIR}
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_depend = .depend
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# it would be nice to be able to get .SUFFIXES as ${.SUFFIXES}
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# we actually only care about the .SUFFIXES of files that might be
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# generated by tools like yacc.
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DEPEND_SUFFIXES += .c .h .cpp .hpp .cxx .hxx .cc .hh
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.depend: .NOMETA $${.MAKE.META.CREATED} ${_this}
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@echo "Updating $@: ${.OODATE:T:[1..8]}"
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@egrep -i '^R .*\.(${DEPEND_SUFFIXES:tl:O:u:S,^.,,:ts|})$$' /dev/null ${.MAKE.META.FILES:T:O:u:${META_FILE_FILTER:ts:}:M*o.meta} | \
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sed -e 's, \./, ,${OBJDIR_REFS:O:u:@d@;s, $d/, ,@};/\//d' \
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-e 's,^\([^/][^/]*\).meta...[0-9]* ,\1: ,' | \
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sort -u | \
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while read t d; do \
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case "$$d:" in $$t) continue;; esac; \
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case "$$t$$d" in ${SUPPRESS_DEPEND:U.:O:u:ts|}) continue;; esac; \
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echo $$t $$d; \
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done > $@.${.MAKE.PID}
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@case "${.MAKE.META.FILES:T:M*.po.*}" in \
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*.po.*) mv $@.${.MAKE.PID} $@;; \
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*) { cat $@.${.MAKE.PID}; \
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sed 's,\.So:,.o:,;s,\.o:,.po:,' $@.${.MAKE.PID}; } | sort -u > $@; \
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rm -f $@.${.MAKE.PID};; \
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esac
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.else
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# make sure this exists
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.depend:
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# do _not_ assume that .depend is in any fit state for us to use
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CAT_DEPEND = /dev/null
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.if ${.MAKE.LEVEL} > 0
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.export CAT_DEPEND
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.endif
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_depend =
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.endif
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.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
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.info ${_DEPENDFILE:S,${SRCTOP}/,,} _depend=${_depend}
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.endif
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gendirdeps: ${_DEPENDFILE}
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.if !target(${_DEPENDFILE})
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.if ${_bootstrap_dirdeps} == "yes"
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# We are boot-strapping a new directory
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# Use DPADD to seed DIRDEPS
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.if !empty(DPADD)
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# anything which matches ${_OBJROOT}* but not ${_OBJTOP}*
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# needs to be qualified in DIRDEPS
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# The pseudo machine "host" is used for HOST_TARGET
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DIRDEPS = \
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${DPADD:M${_OBJTOP}*:H:C,${_OBJTOP}[^/]*/,,:N.:O:u} \
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${DPADD:M${_OBJROOT}*:N${_OBJTOP}*:H:S,${_OBJROOT},,:C,^([^/]+)/(.*),\2.\1,:S,${HOST_TARGET}$,host,:N.*:O:u}
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.endif
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.endif
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_gendirdeps_mutex =
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.if defined(NEED_GENDIRDEPS_MUTEX)
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# If a src dir gets built with multiple object dirs,
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# we need a mutex. Obviously, this is best avoided.
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# Note if .MAKE.DEPENDFILE is common for all ${MACHINE}
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# you either need to mutex, or ensure only one machine builds at a time!
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# lockf is an example of a suitable tool
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LOCKF ?= /usr/bin/lockf
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.if exists(${LOCKF})
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GENDIRDEPS_MUTEXER ?= ${LOCKF} -k
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.endif
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.if empty(GENDIRDEPS_MUTEXER)
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.error NEED_GENDIRDEPS_MUTEX defined, but GENDIRDEPS_MUTEXER not set
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.else
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_gendirdeps_mutex = ${GENDIRDEPS_MUTEXER} ${GENDIRDEPS_MUTEX:U${_CURDIR}/Makefile}
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.endif
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.endif
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# If we have META_XTRAS we most likely did not create them
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# but we need to behave as if we did.
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# Avoid adding glob patterns to .MAKE.META.CREATED though.
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.MAKE.META.CREATED += ${META_XTRAS:N*\**:O:u}
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.if make(gendirdeps)
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META_FILES = *.meta
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.elif ${OPTIMIZE_OBJECT_META_FILES:Uno:tl} == "no"
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META_FILES = ${.MAKE.META.FILES:T:N.depend*:O:u}
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.else
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# if we have 1000's of .o.meta, .So.meta etc we need only look at one set
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# it is left as an exercise for the reader to work out what this does
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META_FILES = ${.MAKE.META.FILES:T:N.depend*:N*o.meta:O:u} \
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${.MAKE.META.FILES:T:M*.${.MAKE.META.FILES:M*o.meta:R:E:O:u:[1]}.meta:O:u}
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.endif
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.if ${DEBUG_AUTODEP:Uno:@m@${RELDIR:M$m}@} != ""
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.info ${_DEPENDFILE:S,${SRCTOP}/,,}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} xtras=${META_XTRAS}
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.endif
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.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER)
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.export GENDIRDEPS_FILTER
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.endif
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# we might have .../ in MAKESYSPATH
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_makesyspath:= ${_PARSEDIR}
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${_DEPENDFILE}: ${_depend} ${.PARSEDIR}/gendirdeps.mk ${META2DEPS} $${.MAKE.META.CREATED}
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@echo Checking $@: ${.OODATE:T:[1..8]}
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@(cd . && \
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SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS:O:u}' \
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DPADD='${FORCE_DPADD:O:u}' ${_gendirdeps_mutex} \
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MAKESYSPATH=${_makesyspath} \
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${.MAKE} -f gendirdeps.mk RELDIR=${RELDIR} _DEPENDFILE=${_DEPENDFILE} \
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META_FILES='${META_XTRAS:T:O:u} ${META_FILES:T:O:u:${META_FILE_FILTER:ts:}}')
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@test -s $@ && touch $@; :
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.endif
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.endif
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.endif
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.if ${_bootstrap_dirdeps} == "yes"
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# make sure this is included at least once
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.include <dirdeps.mk>
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.else
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${_DEPENDFILE}: .PRECIOUS
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.endif
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CLEANFILES += *.meta filemon.* *.db
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.endif
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