1# $FreeBSD$ 2# 3# The include file <bsd.obj.mk> handles creating the 'obj' directory 4# and cleaning up object files, etc. 5# 6# +++ variables +++ 7# 8# CLEANDIRS Additional directories to remove for the clean target. 9# 10# CLEANFILES Additional files to remove for the clean target. 11# 12# MAKEOBJDIR A pathname for the directory where the targets 13# are built. Note: MAKEOBJDIR is an *environment* variable 14# and works properly only if set as an environment variable, 15# not as a global or command line variable! 16# 17# E.g. use `env MAKEOBJDIR=temp-obj make' 18# 19# MAKEOBJDIRPREFIX Specifies somewhere other than /usr/obj to root the object 20# tree. Note: MAKEOBJDIRPREFIX is an *environment* variable 21# and works properly only if set as an environment variable, 22# not as a global or command line variable! 23# 24# E.g. use `env MAKEOBJDIRPREFIX=/somewhere/obj make' 25# 26# NO_OBJ Do not create object directories. This should not be set 27# if anything is built. 28# 29# +++ targets +++ 30# 31# clean: 32# remove ${CLEANFILES}; remove ${CLEANDIRS} and all contents. 33# 34# cleandir: 35# remove the build directory (and all its contents) created by obj 36# 37# obj: 38# create build directory. 39# 40 41.if !target(__<bsd.obj.mk>__) 42__<bsd.obj.mk>__: 43.include <bsd.own.mk> 44 45.if ${MK_AUTO_OBJ} == "yes" 46# it is done by now 47objwarn: 48obj: 49CANONICALOBJDIR= ${.OBJDIR} 50.if defined(NO_OBJ) 51# but this makefile does not want it! 52.OBJDIR: ${.CURDIR} 53.endif 54# Handle special case where SRCS is full-pathed and requires 55# nested objdirs. This duplicates some auto.obj.mk logic. 56.if (!empty(SRCS:M*/*) || !empty(DPSRCS:M*/*)) && \ 57 (${.TARGETS} == "" || ${.TARGETS:Nclean*:N*clean:Ndestroy*} != "") 58_wantdirs= ${SRCS:M*/*:H} ${DPSRCS:M*/*:H} 59.if !empty(_wantdirs) 60_wantdirs:= ${_wantdirs:O:u} 61_needdirs= 62.for _dir in ${_wantdirs} 63.if !exists(${.OBJDIR}/${_dir}/) 64_needdirs+= ${_dir} 65.endif 66.endfor 67.endif 68.if !empty(_needdirs) 69#_mkneededdirs!= umask ${OBJDIR_UMASK:U002}; ${Mkdirs} ${_needdirs} 70__objdir_made != umask ${OBJDIR_UMASK:U002}; ${Mkdirs}; \ 71 for dir in ${_needdirs}; do \ 72 dir=${.OBJDIR}/$${dir}; \ 73 ${ECHO_TRACE} "[Creating nested objdir $${dir}...]" >&2; \ 74 Mkdirs $${dir}; \ 75 done 76.endif 77.endif # !empty(SRCS:M*/*) || !empty(DPSRCS:M*/*) 78.elif defined(MAKEOBJDIRPREFIX) 79CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR} 80.elif defined(MAKEOBJDIR) && ${MAKEOBJDIR:M/*} != "" 81CANONICALOBJDIR:=${MAKEOBJDIR} 82OBJTOP?= ${MAKEOBJDIR} 83.else 84CANONICALOBJDIR:=/usr/obj${.CURDIR} 85.endif 86 87OBJTOP?= ${.OBJDIR:S,${.CURDIR},,}${SRCTOP} 88 89# 90# Warn of unorthodox object directory. 91# 92# The following directories are tried in order for ${.OBJDIR}: 93# 94# 1. ${MAKEOBJDIRPREFIX}/`pwd` 95# 2. ${MAKEOBJDIR} 96# 3. obj.${MACHINE} 97# 4. obj 98# 5. /usr/obj/`pwd` 99# 6. ${.CURDIR} 100# 101# If ${.OBJDIR} is constructed using canonical cases 1 or 5, or 102# case 2 (using MAKEOBJDIR), don't issue a warning. Otherwise, 103# issue a warning differentiating between cases 6 and (3 or 4). 104# 105objwarn: 106.if !defined(NO_OBJ) && ${.OBJDIR} != ${CANONICALOBJDIR} && \ 107 !(defined(MAKEOBJDIRPREFIX) && exists(${CANONICALOBJDIR}/)) && \ 108 !(defined(MAKEOBJDIR) && exists(${MAKEOBJDIR}/)) 109.if ${.OBJDIR} == ${.CURDIR} 110 @${ECHO} "Warning: Object directory not changed from original ${.CURDIR}" 111.elif exists(${.CURDIR}/obj.${MACHINE}/) || exists(${.CURDIR}/obj/) 112 @${ECHO} "Warning: Using ${.OBJDIR} as object directory instead of\ 113 canonical ${CANONICALOBJDIR}" 114.endif 115.endif 116beforebuild: objwarn 117 118.if !defined(NO_OBJ) 119.if !target(obj) 120obj: .PHONY 121 @if ! test -d ${CANONICALOBJDIR}/; then \ 122 mkdir -p ${CANONICALOBJDIR}; \ 123 if ! test -d ${CANONICALOBJDIR}/; then \ 124 ${ECHO} "Unable to create ${CANONICALOBJDIR}."; \ 125 exit 1; \ 126 fi; \ 127 ${ECHO} "${CANONICALOBJDIR} created for ${.CURDIR}"; \ 128 fi 129.for dir in ${SRCS:H:O:u} ${DPSRCS:H:O:u} 130 @if ! test -d ${CANONICALOBJDIR}/${dir}/; then \ 131 mkdir -p ${CANONICALOBJDIR}/${dir}; \ 132 if ! test -d ${CANONICALOBJDIR}/${dir}/; then \ 133 ${ECHO} "Unable to create ${CANONICALOBJDIR}/${dir}."; \ 134 exit 1; \ 135 fi; \ 136 ${ECHO} "${CANONICALOBJDIR}/${dir} created for ${.CURDIR}"; \ 137 fi 138.endfor 139.endif 140 141.if !target(objlink) 142objlink: 143 @if test -d ${CANONICALOBJDIR}/; then \ 144 rm -f ${.CURDIR}/obj; \ 145 ln -s ${CANONICALOBJDIR} ${.CURDIR}/obj; \ 146 else \ 147 echo "No ${CANONICALOBJDIR} to link to - do a make obj."; \ 148 fi 149.endif 150.endif # !defined(NO_OBJ) 151 152# 153# where would that obj directory be? 154# 155.if !target(whereobj) 156whereobj: 157 @echo ${.OBJDIR} 158.endif 159 160.if ${CANONICALOBJDIR} != ${.CURDIR} && exists(${CANONICALOBJDIR}/) 161cleanobj: 162 @-rm -rf ${CANONICALOBJDIR} 163.else 164cleanobj: clean cleandepend 165.endif 166 @if [ -L ${.CURDIR}/obj ]; then rm -f ${.CURDIR}/obj; fi 167 168# Tell bmake not to look for generated files via .PATH 169NOPATH_FILES+= ${CLEANFILES} 170.if !empty(NOPATH_FILES) 171.NOPATH: ${NOPATH_FILES} 172.endif 173 174.if !target(clean) 175clean: 176.if defined(CLEANFILES) && !empty(CLEANFILES) 177 rm -f ${CLEANFILES} 178.endif 179.if defined(CLEANDIRS) && !empty(CLEANDIRS) 180 -rm -rf ${CLEANDIRS} 181.endif 182.endif 183.ORDER: clean all 184 185cleandir: cleanobj 186 187.include <bsd.subdir.mk> 188 189.if make(destroy*) && defined(OBJROOT) 190# this (rm -rf objdir) is much faster and more reliable than cleaning. 191 192# just in case we are playing games with these... 193_OBJDIR?= ${.OBJDIR} 194_CURDIR?= ${.CURDIR} 195 196# destroy almost everything 197destroy: destroy-all 198destroy-all: 199 200# just remove our objdir 201destroy-arch: .NOMETA 202.if ${_OBJDIR} != ${_CURDIR} 203 cd ${_CURDIR} && rm -rf ${_OBJDIR} 204.endif 205 206.if defined(HOST_OBJTOP) 207destroy-host: destroy.host 208destroy.host: .NOMETA 209 cd ${_CURDIR} && rm -rf ${HOST_OBJTOP}/${RELDIR:N.} 210.endif 211 212.if make(destroy-all) && ${RELDIR} == "." 213destroy-all: destroy-stage 214.endif 215 216# remove the stage tree 217destroy-stage: .NOMETA 218.if defined(STAGE_ROOT) 219 cd ${_CURDIR} && rm -rf ${STAGE_ROOT} 220.endif 221 222# allow parallel destruction 223_destroy_machine_list = common host ${ALL_MACHINE_LIST} 224.for m in ${_destroy_machine_list:O:u} 225destroy-all: destroy.$m 226.if !target(destroy.$m) 227destroy.$m: .NOMETA 228.if ${_OBJDIR} != ${_CURDIR} 229 cd ${_CURDIR} && rm -rf ${OBJROOT}$m*/${RELDIR:N.} 230.endif 231.endif 232.endfor 233 234.endif 235 236.endif # !target(__<bsd.obj.mk>__) 237