c427d5e8c2
This could be seen in lib/libkvm/tests where kvm_test_common.o was a common dependency, but one of the recursed progs had a special CFLAGS+= -I that changed the build command. This would cause all recursed builds to rebuild while fighting over the meta file and object file. Reported by: Mark Millard MFC after: 1 week Sponsored by: Dell EMC Isilon
156 lines
4.1 KiB
Makefile
156 lines
4.1 KiB
Makefile
# $FreeBSD$
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# $Id: progs.mk,v 1.11 2012/11/06 17:18:54 sjg Exp $
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#
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# @(#) Copyright (c) 2006, 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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.MAIN: all
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.if defined(PROGS) || defined(PROGS_CXX)
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# we really only use PROGS below...
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PROGS += ${PROGS_CXX}
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.if defined(PROG)
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# just one of many
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PROG_OVERRIDE_VARS += BINDIR BINGRP BINOWN BINMODE DPSRCS MAN NO_WERROR \
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PROGNAME SRCS STRIP WARNS
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PROG_VARS += CFLAGS CXXFLAGS DEBUG_FLAGS DPADD INTERNALPROG LDADD LIBADD \
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LINKS LDFLAGS MLINKS ${PROG_OVERRIDE_VARS}
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.for v in ${PROG_VARS:O:u}
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.if empty(${PROG_OVERRIDE_VARS:M$v})
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.if defined(${v}.${PROG})
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$v += ${${v}.${PROG}}
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.elif defined(${v}_${PROG})
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$v += ${${v}_${PROG}}
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.endif
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.else
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$v ?=
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.endif
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.endfor
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.if ${MK_DIRDEPS_BUILD} == "yes"
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# Leave updating the Makefile.depend to the parent.
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UPDATE_DEPENDFILE = NO
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# Record our meta files for the parent to use.
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CLEANFILES+= ${PROG}.meta_files
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${PROG}.meta_files: .NOMETA $${.MAKE.META.CREATED} ${_this}
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@echo "Updating ${.TARGET}: ${.OODATE:T:[1..8]}"
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@echo ${.MAKE.META.FILES} > ${.TARGET}
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.if !defined(_SKIP_BUILD)
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.END: ${PROG}.meta_files
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.endif
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.endif # ${MK_DIRDEPS_BUILD} == "yes"
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# prog.mk will do the rest
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.else # !defined(PROG)
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.if !defined(_SKIP_BUILD)
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all: ${PROGS}
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.endif
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META_XTRAS+= ${cat ${PROGS:S/$/*.meta_files/} 2>/dev/null || true:L:sh}
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.if ${MK_STAGING} != "no" && !empty(PROGS)
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# Stage from parent while respecting PROGNAME and BINDIR overrides.
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.for _prog in ${PROGS}
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STAGE_DIR.prog.${_prog}= ${STAGE_OBJTOP}${BINDIR.${_prog}:UBINDIR_${_prog}:U${BINDIR}}
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STAGE_AS_SETS+= prog.${_prog}
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STAGE_AS_prog.${_prog}= ${PROGNAME.${_prog}:UPROGNAME_${_prog}:U${_prog}}
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stage_as.prog.${_prog}: ${_prog}
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.endfor
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.endif # ${MK_STAGING} != "no" && !empty(PROGS)
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.endif
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.endif # PROGS || PROGS_CXX
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# These are handled by the main make process.
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.ifdef _RECURSING_PROGS
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MK_STAGING= no
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_PROGS_GLOBAL_VARS= CLEANFILES CLEANDIRS CONFGROUPS FILESGROUPS INCSGROUPS \
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SCRIPTS
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.for v in ${_PROGS_GLOBAL_VARS}
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$v =
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.endfor
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.endif
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# handle being called [bsd.]progs.mk
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.include <bsd.prog.mk>
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# Find common sources among the PROGS to depend on them before building
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# anything. This allows parallelization without them each fighting over
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# the same objects.
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_PROGS_COMMON_SRCS=
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_PROGS_ALL_SRCS=
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.for p in ${PROGS}
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.for s in ${SRCS.${p}}
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.if ${_PROGS_ALL_SRCS:M${s}} && !${_PROGS_COMMON_SRCS:M${s}}
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_PROGS_COMMON_SRCS+= ${s}
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.else
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_PROGS_ALL_SRCS+= ${s}
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.endif
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.endfor
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.endfor
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.if !empty(_PROGS_COMMON_SRCS)
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_PROGS_COMMON_OBJS= ${_PROGS_COMMON_SRCS:M*.[dhly]}
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.if !empty(_PROGS_COMMON_SRCS:N*.[dhly])
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_PROGS_COMMON_OBJS+= ${_PROGS_COMMON_SRCS:N*.[dhly]:R:S/$/.o/g}
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.endif
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.endif
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# When recursing, ensure common sources are not rebuilt in META_MODE.
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.if defined(_RECURSING_PROGS) && !empty(_PROGS_COMMON_OBJS) && \
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!empty(.MAKE.MODE:Mmeta)
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${_PROGS_COMMON_OBJS}: .NOMETA
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.endif
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.if !empty(PROGS) && !defined(_RECURSING_PROGS) && !defined(PROG)
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# tell progs.mk we might want to install things
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PROGS_TARGETS+= checkdpadd clean cleandepend cleandir depend install
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# Ensure common objects are built before recursing.
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.if !empty(_PROGS_COMMON_OBJS)
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${PROGS}: ${_PROGS_COMMON_OBJS}
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.endif
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.for p in ${PROGS}
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.if defined(PROGS_CXX) && !empty(PROGS_CXX:M$p)
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# bsd.prog.mk may need to know this
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x.$p= PROG_CXX=$p
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.endif
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# Main PROG target
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$p ${p}_p: .PHONY .MAKE
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(cd ${.CURDIR} && \
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DEPENDFILE=.depend.$p \
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NO_SUBDIR=1 ${MAKE} -f ${MAKEFILE} _RECURSING_PROGS=t \
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PROG=$p ${x.$p})
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# Pseudo targets for PROG, such as 'install'.
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.for t in ${PROGS_TARGETS:O:u}
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$p.$t: .PHONY .MAKE
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(cd ${.CURDIR} && \
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DEPENDFILE=.depend.$p \
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NO_SUBDIR=1 ${MAKE} -f ${MAKEFILE} _RECURSING_PROGS=t \
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PROG=$p ${x.$p} ${@:E})
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.endfor
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.endfor
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# Depend main pseudo targets on all PROG.pseudo targets too.
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.for t in ${PROGS_TARGETS:O:u}
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.if make(${t})
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$t: ${PROGS:%=%.$t}
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.endif
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.endfor
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.endif # !empty(PROGS) && !defined(_RECURSING_PROGS) && !defined(PROG)
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