bee3d4bf8e
When originally implemented, there was no distinction between
DIRDEPS_BUILD and META_MODE, they were one and the same.
META_MODE however is useful by itself, but since meta.sys.mk
had lots of settings related to DIRDEPS_BUILD its use was limited
to DIRDEPS_BUILD.
Move (most) DIRDEPS_BUILD related items to sys.dirdeps.mk
so that meta.sys.mk can be used for just META_MODE.
There is of course some bluring of the lines, so settings remain
in meta.sys.mk
Add MK_META_ERROR_TARGET to enable the META_MODE .ERROR target
independent of DIRDEPS_BUILD, it copies failed .meta files to ${SB}/error
to make it easier to identify the cause of build failures.
Since sys.dirdeps.mk should be included first, most of
local.meta.sys.mk becomes local.sys.dirdeps.mk
and some other bits need to move to local.sys.dirdeps.env.mk
Also fix dirdeps.mk to not add CURDIR to DIRDEPS when it is SRCTOP.
Reviewed by: bdrewery
Differential Revision: https://reviews.freebsd.org/D40053
226 lines
7.0 KiB
Makefile
226 lines
7.0 KiB
Makefile
# $FreeBSD$
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#
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# Early setup of MAKEOBJDIR
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#
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# Default format is: /usr/obj/usr/src/[${TARGET}.${TARGET_ARCH}/]bin/sh
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# MAKEOBJDIRPREFIX is /usr/obj
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# OBJROOT is /usr/obj/usr/src/
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# OBJTOP is /usr/obj/usr/src/[${TARGET}.${TARGET_ARCH}/]
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# MAKEOBJDIR is /usr/obj/usr/src/[${TARGET}.${TARGET_ARCH}/]bin/sh
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#
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# MAKEOBJDIRPREFIX will override the default pattern above and internally
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# set MAKEOBJDIR. If OBJROOT is set then MAKEOBJDIRPREFIX is rooted inside
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# of there.
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#
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# If MK_UNIFIED_OBJDIR is no then OBJROOT will always match OBJTOP.
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#
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# If .MAKE.LEVEL == 0 then the TARGET.TARGET_ARCH is potentially added on.
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# If .MAKE.LEVEL > 0 and MAKEOBJDIRPREFIX is set then it will not get
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# TARGET.TARGET_ARCH added in as it assumes that MAKEOBJDIRPREFIX is
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# nested in the existing OBJTOP with TARGET.TARGET_ARCH in it.
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#
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# The expected OBJDIR is stored in __objdir for auto.obj.mk to use.
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#
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# AUTO_OBJ is opportunistically enabled if the computed .OBJDIR is writable
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# by the current user. Some top-level targets disable this behavior in
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# Makefile.sys.inc.
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#
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_default_makeobjdirprefix?= /usr/obj
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_default_makeobjdir= $${.CURDIR:S,^$${SRCTOP},$${OBJTOP},}
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.include <bsd.mkopt.mk>
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.if ${.MAKE.LEVEL} == 0 || empty(OBJROOT)
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.if ${MK_UNIFIED_OBJDIR} == "no" && ${MK_DIRDEPS_BUILD} == "no"
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# Fall back to historical behavior.
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# We always want to set a default MAKEOBJDIRPREFIX...
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MAKEOBJDIRPREFIX?= ${_default_makeobjdirprefix}
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# but don't enforce TARGET.TARGET_ARCH unless we're at the top-level directory.
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.if ${.CURDIR} == ${SRCTOP} && \
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!(defined(TARGET) && defined(TARGET_ARCH) && \
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${MACHINE} == ${TARGET} && ${MACHINE_ARCH} == ${TARGET_ARCH} && \
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!defined(CROSS_BUILD_TESTING))
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MAKEOBJDIRPREFIX:= ${MAKEOBJDIRPREFIX}${TARGET:D/${TARGET}.${TARGET_ARCH}}
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.endif
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.endif # ${MK_UNIFIED_OBJDIR} == "no"
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.if !empty(MAKEOBJDIRPREFIX)
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# put things approximately where they want
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OBJROOT:= ${MAKEOBJDIRPREFIX}${SRCTOP}/
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MAKEOBJDIRPREFIX=
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# export but do not track
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.export-env MAKEOBJDIRPREFIX
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.endif
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.if empty(MAKEOBJDIR)
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# OBJTOP set below
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MAKEOBJDIR= ${_default_makeobjdir}
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# export but do not track
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.export-env MAKEOBJDIR
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# Expand for our own use
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MAKEOBJDIR:= ${MAKEOBJDIR}
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.endif
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# SB documented at http://www.crufty.net/sjg/docs/sb-tools.htm
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.if !empty(SB)
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SB_OBJROOT?= ${SB}/obj/
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# this is what we use below
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OBJROOT?= ${SB_OBJROOT}
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.endif
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OBJROOT?= ${_default_makeobjdirprefix}${SRCTOP}/
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.if ${OBJROOT:M*/} != ""
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OBJROOT:= ${OBJROOT:H:tA}/
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.else
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OBJROOT:= ${OBJROOT:H:tA}/${OBJROOT:T}
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.endif
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# Must export since OBJDIR will dynamically be based on it
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.export OBJROOT SRCTOP
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.endif
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.if ${MK_DIRDEPS_BUILD} == "no"
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.if empty(OBJTOP)
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# SRCTOP == OBJROOT only happens with clever MAKEOBJDIRPREFIX=/. Don't
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# append TARGET.TARGET_ARCH for that case since the user wants to build
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# in the source tree.
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.if ${MK_UNIFIED_OBJDIR} == "yes" && ${SRCTOP} != ${OBJROOT:tA}
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.if defined(TARGET) && defined(TARGET_ARCH)
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OBJTOP:= ${OBJROOT}${TARGET}.${TARGET_ARCH}
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.elif defined(TARGET) && ${.CURDIR} == ${SRCTOP}
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# Not enough information, just use basic OBJDIR. This can happen with some
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# 'make universe' targets or if TARGET is not being used as expected.
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OBJTOP:= ${OBJROOT:H}
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.else
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OBJTOP:= ${OBJROOT}${MACHINE}.${MACHINE_ARCH}
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.endif
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.else
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# TARGET.TARGET_ARCH handled in OBJROOT already.
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OBJTOP:= ${OBJROOT:H}
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.endif # ${MK_UNIFIED_OBJDIR} == "yes"
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.endif # empty(OBJTOP)
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# Fixup OBJROOT/OBJTOP if using MAKEOBJDIRPREFIX.
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# This intenionally comes after adding TARGET.TARGET_ARCH so that is truncated
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# away for nested objdirs. This logic also will not trigger if the OBJROOT
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# block above unsets MAKEOBJDIRPREFIX.
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.if !empty(MAKEOBJDIRPREFIX)
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OBJTOP:= ${MAKEOBJDIRPREFIX}${SRCTOP}
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OBJROOT:= ${OBJTOP}/
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.endif
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# Wait to validate MAKEOBJDIR until OBJTOP is set.
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.if defined(MAKEOBJDIR)
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.if ${MAKEOBJDIR:M/*} == ""
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.error Cannot use MAKEOBJDIR=${MAKEOBJDIR}${.newline}Unset MAKEOBJDIR to get default: MAKEOBJDIR='${_default_makeobjdir}'
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.endif
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.endif
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# __objdir is the expected .OBJDIR we want to use and that auto.obj.mk will
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# try to create.
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.if !empty(MAKEOBJDIRPREFIX)
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.if ${.CURDIR:M${MAKEOBJDIRPREFIX}/*} != ""
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# we are already in obj tree!
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__objdir= ${.CURDIR}
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.else
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__objdir:= ${MAKEOBJDIRPREFIX}${.CURDIR}
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.endif
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.elif !empty(MAKEOBJDIR)
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__objdir:= ${MAKEOBJDIR}
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.endif
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# Try to enable MK_AUTO_OBJ by default if we can write to the __objdir. Only
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# do this if AUTO_OBJ is not disabled by the user, and this is the first make
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# ran.
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.if ${.MAKE.LEVEL} == 0 && \
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${MK_AUTO_OBJ} == "no" && empty(.MAKEOVERRIDES:MMK_AUTO_OBJ) && \
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!defined(WITHOUT_AUTO_OBJ) && !make(showconfig) && !make(print-dir) && \
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!make(test-system-*) && \
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!defined(NO_OBJ) && \
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empty(RELDIR:Msys/*/compile/*)
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# Find the last existing directory component and check if we can write to it.
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# If the last component is a symlink then recurse on the new path.
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CheckAutoObj= \
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DirIsCreatable() { \
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if [ -w "$${1}" ]; then \
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[ -d "$${1}" ] || return 1; \
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return 0; \
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fi; \
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d="$${1}"; \
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IFS=/; \
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set -- $${d}; \
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unset dir; \
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while [ $$\# -gt 0 ]; do \
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d="$${1}"; \
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shift; \
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if [ ! -d "$${dir}$${d}/" ]; then \
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if [ -L "$${dir}$${d}" ]; then \
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dir="$$(readlink "$${dir}$${d}")/"; \
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for d in "$${@}"; do \
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dir="$${dir}$${d}/"; \
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done; \
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ret=0; \
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DirIsCreatable "$${dir%/}" || ret=$$?; \
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return $${ret}; \
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elif [ -e "/$${dir}$${d}" ]; then \
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return 1; \
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else \
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break; \
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fi; \
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fi; \
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dir="$${dir}$${d}/"; \
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done; \
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[ -w "$${dir}" ] && [ -d "$${dir}" ] && return 0; \
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return 1; \
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}; \
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CheckAutoObj() { \
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if DirIsCreatable "$${1}"; then \
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echo yes; \
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else \
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echo no; \
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fi; \
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}
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.if !empty(__objdir)
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.if ${.CURDIR} == ${__objdir} || \
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(exists(${__objdir}) && ${.TARGETS:M*install*} == ${.TARGETS})
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__objdir_writable?= yes
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.elif empty(__objdir_writable)
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__objdir_writable!= \
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${CheckAutoObj}; CheckAutoObj "${__objdir}" || echo no
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.endif
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.endif
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__objdir_writable?= no
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# Export the decision to sub-makes.
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MK_AUTO_OBJ:= ${__objdir_writable}
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.export MK_AUTO_OBJ
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.elif make(showconfig)
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# Need to export for showconfig internally running make -dg1. It is enabled
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# in sys.mk by default.
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.export MK_AUTO_OBJ
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.endif # ${MK_AUTO_OBJ} == "no" && ...
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# Assign this directory as .OBJDIR if possible.
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#
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# The expected OBJDIR already exists, set it as .OBJDIR.
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.if !empty(__objdir) && exists(${__objdir})
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.OBJDIR: ${__objdir}
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.else
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# The OBJDIR we wanted does not yet exist, ensure we default to safe .CURDIR
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# in case make started with a bogus MAKEOBJDIR, that expanded before OBJTOP
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# was set, that happened to match some unexpected directory. Either
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# auto.obj.mk or bsd.obj.mk will create the directory and fix .OBJDIR later.
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.OBJDIR: ${.CURDIR}
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.endif
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# Ensure .OBJDIR=.CURDIR cases have a proper OBJTOP and .OBJDIR
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.if defined(NO_OBJ) || ${__objdir_writable:Uunknown} == "no" || \
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${__objdir} == ${.CURDIR}
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OBJTOP= ${SRCTOP}
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OBJROOT= ${SRCTOP}/
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# Compare only to avoid an unneeded chdir(2), :tA purposely left out.
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.if ${.OBJDIR} != ${.CURDIR}
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.OBJDIR: ${.CURDIR}
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.endif
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.endif # defined(NO_OBJ)
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HOST_OBJTOP?= ${OBJROOT}${HOST_TARGET}
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.endif # ${MK_DIRDEPS_BUILD} == "no"
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