freebsd-dev/share/mk/local.sys.mk
Bryan Drewery 29f227c144 WITH_META_MODE: Enable printing of some of make's environment on error.
This will print a set of variables from make on error using
MAKE_PRINT_VAR_ON_ERROR.  It is already enabled for the DIRDEPS_BUILD.
It may make sense to enable this in the non-meta mode as well once
people are more used to its more verbose error output.

This makes it much simpler to see which .meta file is used when a
command files so that it may be inspected for the build command.

Suggested by:	sjg
Approved by:	re (implicit)
Sponsored by:	EMC / Isilon Storage Division
2016-06-14 16:20:25 +00:00

77 lines
2.1 KiB
Makefile

# $FreeBSD$
.if ${MK_DIRDEPS_BUILD} == "yes" || ${MK_META_MODE} == "yes"
# Not in the below list as it may make sense for non-meta mode
# eventually. meta.sys.mk (DIRDEPS_BUILD) also already adds these in.
.if ${MK_DIRDEPS_BUILD} == "no" && ${MK_META_MODE} == "yes"
MAKE_PRINT_VAR_ON_ERROR += \
.ERROR_TARGET \
.ERROR_META_FILE \
.MAKE.LEVEL \
MAKEFILE \
.MAKE.MODE
.endif
MAKE_PRINT_VAR_ON_ERROR+= \
.CURDIR \
.MAKE \
.OBJDIR \
.TARGETS \
DESTDIR \
LD_LIBRARY_PATH \
MACHINE \
MACHINE_ARCH \
MAKEOBJDIRPREFIX \
MAKESYSPATH \
MAKE_VERSION \
PATH \
SRCTOP \
OBJTOP \
${MAKE_PRINT_VAR_ON_ERROR_XTRAS}
.if ${.MAKE.LEVEL} > 0
MAKE_PRINT_VAR_ON_ERROR += .MAKE.MAKEFILES .PATH
.endif
.endif
.if !empty(.OBJDIR)
OBJTOP?= ${.OBJDIR:S,${.CURDIR},,}${SRCTOP}
.endif
.include "src.sys.mk"
.if ${.MAKE.MODE:Mmeta*} != ""
# we can afford to use cookies to prevent some targets
# re-running needlessly but only when using filemon.
# Targets that should support the meta mode cookie handling should just be
# added to META_TARGETS. If bsd.sys.mk cannot be included then ${META_DEPS}
# should be added as a target dependency as well. Otherwise the target
# is added to in bsd.sys.mk since it comes last.
.if ${.MAKE.MODE:Mnofilemon} == ""
# Prepend .OBJDIR if not already there.
_META_COOKIE_COND= "${.TARGET:M${.OBJDIR}/*}" == ""
_META_COOKIE_DEFAULT= ${${_META_COOKIE_COND}:?${.OBJDIR}/${.TARGET}:${.TARGET}}
# Use the default if COOKIE.${.TARGET} is not defined.
META_COOKIE= ${COOKIE.${.TARGET}:U${_META_COOKIE_DEFAULT}}
META_COOKIE_RM= @rm -f ${META_COOKIE}
META_COOKIE_TOUCH= @touch ${META_COOKIE}
CLEANFILES+= ${META_TARGETS}
_meta_dep_before: .USEBEFORE .NOTMAIN
${META_COOKIE_RM}
_meta_dep_after: .USE .NOTMAIN
${META_COOKIE_TOUCH}
# Attach this to a target to allow it to benefit from meta mode's
# not rerunning a command if it doesn't need to be considering its
# metafile/filemon-tracked dependencies.
META_DEPS= _meta_dep_before _meta_dep_after .META
.endif
.else
# some targets need to be .PHONY - but not in meta mode
META_NOPHONY= .PHONY
.endif
META_NOPHONY?=
META_COOKIE_RM?=
META_COOKIE_TOUCH?=
META_DEPS+= ${META_NOPHONY}