HardenedBSD/share/mk/local.sys.mk
Bryan Drewery 9e0a1e78e5 META_MODE: Delete build targets that fail.
If a meta mode change is triggered but then the build fails then the
next build will not retrigger meta mode. This only prevented by
removing the target on rebuild or on the failure to rebuild.

Sponsored by:	DellEMC
2019-06-15 17:08:28 +00:00

89 lines
2.5 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
_ERROR_CMD_EXEC= ${sed -n '/^CMD/s,^CMD \(.*\),\1;,p' ${.ERROR_META_FILE}:L:sh}
_ERROR_CMD= ${!empty(.ERROR_META_FILE):?${_ERROR_CMD_EXEC}:.PHONY}
MAKE_PRINT_VAR_ON_ERROR+= \
_ERROR_CMD \
.CURDIR \
.MAKE \
.OBJDIR \
.TARGETS \
DESTDIR \
LD_LIBRARY_PATH \
MACHINE \
MACHINE_ARCH \
MAKEOBJDIRPREFIX \
MAKESYSPATH \
MAKE_VERSION \
PATH \
SRCTOP \
OBJTOP \
${MAKE_PRINT_VAR_ON_ERROR_XTRAS}
# Meta mode may rebuild targets that then fail. The next build won't detect
# the meta mode change. Not all targets have a 'rm ${.TARGET}' in them
# so force it.
.DELETE_ON_ERROR:
.if ${.MAKE.LEVEL} > 0
MAKE_PRINT_VAR_ON_ERROR += .MAKE.MAKEFILES .PATH
.endif
.endif
.if !empty(.OBJDIR)
OBJTOP?= ${.OBJDIR:S,${.CURDIR},,}${SRCTOP}
.endif
.if !empty(LIBDIR)
_PREMK_LIBDIR:= ${LIBDIR}
.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}