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dfa099890c
This changes the build OBJDIR from the older style of /usr/obj/<srcdir> for native builds, and /usr/obj/<target>.<target_arch>/<srcdir> for cross builds to a new simpler format of /usr/obj/<srcdir>/<target>.<target_arch>. This new format is used regardless of cross or native build. It allows easier management of multiple source tree object directories. The UNIFIED_OBJDIR option will be removed and its feature made permanent for the 12.0 release. Relnotes: yes (don't note UNIFIED_OBJDIR option since it will be removed) Prior work: D3711 D874 Reviewed by: gjb, sjg Discussed at: https://lists.freebsd.org/pipermail/freebsd-arch/2016-May/017805.html Discussed with: emaste Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D12840
238 lines
6.0 KiB
Makefile
238 lines
6.0 KiB
Makefile
# $FreeBSD$
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#
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# The include file <bsd.obj.mk> handles creating the 'obj' directory
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# and cleaning up object files, etc.
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#
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# +++ variables +++
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#
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# CLEANDIRS Additional directories to remove for the clean target.
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#
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# CLEANFILES Additional files to remove for the clean target.
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#
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# MAKEOBJDIR A pathname for the directory where the targets
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# are built. Note: MAKEOBJDIR is an *environment* variable
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# and works properly only if set as an environment variable,
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# not as a global or command line variable!
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#
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# E.g. use `env MAKEOBJDIR=temp-obj make'
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#
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# MAKEOBJDIRPREFIX Specifies somewhere other than /usr/obj to root the object
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# tree. Note: MAKEOBJDIRPREFIX is an *environment* variable
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# and works properly only if set as an environment variable,
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# not as a global or command line variable!
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#
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# E.g. use `env MAKEOBJDIRPREFIX=/somewhere/obj make'
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#
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# NO_OBJ Do not create object directories. This should not be set
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# if anything is built.
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#
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# +++ targets +++
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#
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# clean:
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# remove ${CLEANFILES}; remove ${CLEANDIRS} and all contents.
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#
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# cleandir:
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# remove the build directory (and all its contents) created by obj
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#
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# obj:
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# create build directory.
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#
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.if !target(__<bsd.obj.mk>__)
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__<bsd.obj.mk>__:
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.include <bsd.own.mk>
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.if ${MK_AUTO_OBJ} == "yes"
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# it is done by now
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objwarn:
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obj:
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CANONICALOBJDIR= ${.OBJDIR}
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.if defined(NO_OBJ)
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# but this makefile does not want it!
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.OBJDIR: ${.CURDIR}
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.endif
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# Handle special case where SRCS is full-pathed and requires
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# nested objdirs. This duplicates some auto.obj.mk logic.
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.if (!empty(SRCS:M*/*) || !empty(DPSRCS:M*/*)) && \
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(${.TARGETS} == "" || ${.TARGETS:Nclean*:N*clean:Ndestroy*} != "")
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_wantdirs= ${SRCS:M*/*:H} ${DPSRCS:M*/*:H}
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.if !empty(_wantdirs)
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_wantdirs:= ${_wantdirs:O:u}
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_needdirs=
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.for _dir in ${_wantdirs}
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.if !exists(${.OBJDIR}/${_dir}/)
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_needdirs+= ${_dir}
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.endif
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.endfor
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.endif
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.if !empty(_needdirs)
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#_mkneededdirs!= umask ${OBJDIR_UMASK:U002}; ${Mkdirs} ${_needdirs}
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__objdir_made != umask ${OBJDIR_UMASK:U002}; ${Mkdirs}; \
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for dir in ${_needdirs}; do \
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dir=${.OBJDIR}/$${dir}; \
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${ECHO_TRACE} "[Creating nested objdir $${dir}...]" >&2; \
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Mkdirs $${dir}; \
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done
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.endif
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.endif # !empty(SRCS:M*/*) || !empty(DPSRCS:M*/*)
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.elif !empty(MAKEOBJDIRPREFIX)
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CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR}
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.elif defined(MAKEOBJDIR) && ${MAKEOBJDIR:M/*} != ""
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CANONICALOBJDIR:=${MAKEOBJDIR}
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OBJTOP?= ${MAKEOBJDIR}
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.else
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CANONICALOBJDIR:=/usr/obj${.CURDIR}
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.endif
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OBJTOP?= ${.OBJDIR:S,${.CURDIR},,}${SRCTOP}
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#
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# Warn of unorthodox object directory.
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#
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# The following directories are tried in order for ${.OBJDIR}:
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#
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# 1. ${MAKEOBJDIRPREFIX}/`pwd`
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# 2. ${MAKEOBJDIR}
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# 3. obj.${MACHINE}
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# 4. obj
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# 5. /usr/obj/`pwd`
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# 6. ${.CURDIR}
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#
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# If ${.OBJDIR} is constructed using canonical cases 1 or 5, or
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# case 2 (using MAKEOBJDIR), don't issue a warning. Otherwise,
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# issue a warning differentiating between cases 6 and (3 or 4).
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#
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objwarn: .PHONY
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.if !defined(NO_OBJ) && ${.OBJDIR} != ${CANONICALOBJDIR} && \
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!(defined(MAKEOBJDIRPREFIX) && exists(${CANONICALOBJDIR}/)) && \
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!(defined(MAKEOBJDIR) && exists(${MAKEOBJDIR}/))
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.if ${.OBJDIR} == ${.CURDIR}
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@${ECHO} "Warning: Object directory not changed from original ${.CURDIR}"
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.elif exists(${.CURDIR}/obj.${MACHINE}/) || exists(${.CURDIR}/obj/)
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@${ECHO} "Warning: Using ${.OBJDIR} as object directory instead of\
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canonical ${CANONICALOBJDIR}"
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.endif
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.endif
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beforebuild: objwarn
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.if !defined(NO_OBJ)
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.if !target(obj)
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obj: .PHONY
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@if ! test -d ${CANONICALOBJDIR}/; then \
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mkdir -p ${CANONICALOBJDIR}; \
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if ! test -d ${CANONICALOBJDIR}/; then \
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${ECHO} "Unable to create ${CANONICALOBJDIR}."; \
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exit 1; \
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fi; \
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${ECHO} "${CANONICALOBJDIR} created for ${.CURDIR}"; \
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fi
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.for dir in ${SRCS:H:O:u} ${DPSRCS:H:O:u}
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@if ! test -d ${CANONICALOBJDIR}/${dir}/; then \
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mkdir -p ${CANONICALOBJDIR}/${dir}; \
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if ! test -d ${CANONICALOBJDIR}/${dir}/; then \
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${ECHO} "Unable to create ${CANONICALOBJDIR}/${dir}."; \
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exit 1; \
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fi; \
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${ECHO} "${CANONICALOBJDIR}/${dir} created for ${.CURDIR}"; \
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fi
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.endfor
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.endif
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.if !target(objlink)
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objlink:
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@if test -d ${CANONICALOBJDIR}/; then \
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rm -f ${.CURDIR}/obj; \
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ln -s ${CANONICALOBJDIR} ${.CURDIR}/obj; \
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else \
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echo "No ${CANONICALOBJDIR} to link to - do a make obj."; \
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fi
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.endif
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.endif # !defined(NO_OBJ)
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#
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# where would that obj directory be?
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#
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.if !target(whereobj)
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whereobj:
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@echo ${.OBJDIR}
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.endif
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# Same check in bsd.progs.mk
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.if ${CANONICALOBJDIR} != ${.CURDIR} && exists(${CANONICALOBJDIR}/)
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cleanobj:
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-rm -rf ${CANONICALOBJDIR}
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.else
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cleanobj: clean cleandepend
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.endif
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@if [ -L ${.CURDIR}/obj ]; then rm -f ${.CURDIR}/obj; fi
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# Tell bmake not to look for generated files via .PATH
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NOPATH_FILES+= ${CLEANFILES}
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.if !empty(NOPATH_FILES)
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.NOPATH: ${NOPATH_FILES}
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.endif
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.if !target(clean)
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clean:
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.if defined(CLEANFILES) && !empty(CLEANFILES)
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rm -f ${CLEANFILES}
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.endif
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.if defined(CLEANDIRS) && !empty(CLEANDIRS)
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-rm -rf ${CLEANDIRS}
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.endif
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.endif
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.ORDER: clean all
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.include <bsd.subdir.mk>
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cleandir: .WAIT cleanobj
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.if make(destroy*) && defined(OBJROOT)
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# this (rm -rf objdir) is much faster and more reliable than cleaning.
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# just in case we are playing games with these...
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_OBJDIR?= ${.OBJDIR}
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_CURDIR?= ${.CURDIR}
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# destroy almost everything
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destroy: destroy-all
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destroy-all:
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# just remove our objdir
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destroy-arch: .NOMETA
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.if ${_OBJDIR} != ${_CURDIR}
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cd ${_CURDIR} && rm -rf ${_OBJDIR}
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.endif
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.if defined(HOST_OBJTOP)
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destroy-host: destroy.host
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destroy.host: .NOMETA
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cd ${_CURDIR} && rm -rf ${HOST_OBJTOP}/${RELDIR:N.}
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.endif
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.if make(destroy-all) && ${RELDIR} == "."
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destroy-all: destroy-stage
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.endif
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# remove the stage tree
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destroy-stage: .NOMETA
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.if defined(STAGE_ROOT)
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cd ${_CURDIR} && rm -rf ${STAGE_ROOT}
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.endif
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# allow parallel destruction
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_destroy_machine_list = common host ${ALL_MACHINE_LIST}
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.for m in ${_destroy_machine_list:O:u}
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destroy-all: destroy.$m
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.if !target(destroy.$m)
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destroy.$m: .NOMETA
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.if ${_OBJDIR} != ${_CURDIR}
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cd ${_CURDIR} && rm -rf ${OBJROOT}$m*/${RELDIR:N.}
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.endif
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.endif
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.endfor
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.endif
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.endif # !target(__<bsd.obj.mk>__)
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