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# $Id: meta.sys.mk,v 1.32 2017/06/11 03:24:04 sjg Exp $ |
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|
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# |
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# @(#) Copyright (c) 2010, Simon J. Gerraty |
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# |
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# This file is provided in the hope that it will |
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# be of use. There is absolutely NO WARRANTY. |
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# Permission to copy, redistribute or otherwise |
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# use this file is hereby granted provided that |
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# the above copyright notice and this notice are |
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# left intact. |
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# |
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# Please send copies of changes and bug-fixes to: |
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# sjg@crufty.net |
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# |
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|
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# include this if you want to enable meta mode |
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# for maximum benefit, requires filemon(4) driver. |
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|
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.if ${MAKE_VERSION:U0} > 20100901 |
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.if !target(.ERROR) |
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|
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.-include <local.meta.sys.mk> |
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|
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# absoulte path to what we are reading. |
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_PARSEDIR = ${.PARSEDIR:tA} |
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|
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.if !defined(SYS_MK_DIR) |
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SYS_MK_DIR := ${_PARSEDIR} |
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.endif |
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|
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META_MODE += meta verbose |
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.MAKE.MODE ?= ${META_MODE} |
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|
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.if ${.MAKE.LEVEL} == 0 |
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_make_mode := ${.MAKE.MODE} ${META_MODE} |
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.if ${_make_mode:M*read*} != "" || ${_make_mode:M*nofilemon*} != "" |
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# tell everyone we are not updating Makefile.depend* |
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UPDATE_DEPENDFILE = NO |
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.export UPDATE_DEPENDFILE |
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.endif |
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.if ${UPDATE_DEPENDFILE:Uyes:tl} == "no" && !exists(/dev/filemon) |
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# we should not get upset |
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META_MODE += nofilemon |
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.export META_MODE |
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.endif |
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.endif |
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|
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.if !defined(NO_SILENT) |
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.if ${MAKE_VERSION} > 20110818 |
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# only be silent when we have a .meta file |
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META_MODE += silent=yes |
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.else |
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.SILENT: |
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.endif |
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.endif |
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|
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# we use the pseudo machine "host" for the build host. |
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# this should be taken care of before we get here |
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.if ${OBJTOP:Ua} == ${HOST_OBJTOP:Ub} |
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MACHINE = host |
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.endif |
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|
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.if ${.MAKE.LEVEL} == 0 |
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# it can be handy to know which MACHINE kicked off the build |
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# for example, if using Makefild.depend for multiple machines, |
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# allowing only MACHINE0 to update can keep things simple. |
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MACHINE0 := ${MACHINE} |
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.export MACHINE0 |
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|
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.if defined(PYTHON) && exists(${PYTHON}) |
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# we prefer the python version of this - it is much faster |
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META2DEPS ?= ${.PARSEDIR}/meta2deps.py |
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.else |
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META2DEPS ?= ${.PARSEDIR}/meta2deps.sh |
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.endif |
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META2DEPS := ${META2DEPS} |
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.export META2DEPS |
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.endif |
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|
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MAKE_PRINT_VAR_ON_ERROR += \ |
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.ERROR_TARGET \ |
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.ERROR_META_FILE \ |
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.MAKE.LEVEL \ |
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MAKEFILE \ |
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.MAKE.MODE |
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|
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.if !defined(SB) && defined(SRCTOP) |
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SB = ${SRCTOP:H} |
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.endif |
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ERROR_LOGDIR ?= ${SB}/error |
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meta_error_log = ${ERROR_LOGDIR}/meta-${.MAKE.PID}.log |
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|
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# we are not interested in make telling us a failure happened elsewhere |
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.ERROR: _metaError |
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_metaError: .NOMETA .NOTMAIN |
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-@[ "${.ERROR_META_FILE}" ] && { \ |
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grep -q 'failure has been detected in another branch' ${.ERROR_META_FILE} && exit 0; \ |
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mkdir -p ${meta_error_log:H}; \ |
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cp ${.ERROR_META_FILE} ${meta_error_log}; \ |
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echo "ERROR: log ${meta_error_log}" >&2; }; : |
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|
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.endif |
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|
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# Are we, after all, in meta mode? |
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.if ${.MAKE.MODE:Uno:Mmeta*} != "" |
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MKDEP_MK = meta.autodep.mk |
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|
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.if ${.MAKE.MAKEFILES:M*sys.dependfile.mk} == "" |
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# this does all the smarts of setting .MAKE.DEPENDFILE |
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.-include <sys.dependfile.mk> |
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# check if we got anything sane |
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.if ${.MAKE.DEPENDFILE} == ".depend" |
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.undef .MAKE.DEPENDFILE |
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.endif |
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.MAKE.DEPENDFILE ?= Makefile.depend |
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.endif |
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|
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# we can afford to use cookies to prevent some targets |
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# re-running needlessly |
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META_COOKIE_TOUCH?= touch ${COOKIE.${.TARGET}:U${.OBJDIR}/${.TARGET:T}} |
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META_NOPHONY= |
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META_NOECHO= : |
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|
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# some targets involve old pre-built targets |
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# ignore mtime of shell |
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# and mtime of makefiles does not matter in meta mode |
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.MAKE.META.IGNORE_PATHS += \ |
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${MAKEFILE} \ |
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${SHELL} \ |
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${SYS_MK_DIR} |
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|
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.if ${UPDATE_DEPENDFILE:Uyes:tl} != "no" |
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.if ${.MAKEFLAGS:Uno:M-k} != "" |
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# make this more obvious |
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.warning Setting UPDATE_DEPENDFILE=NO due to -k |
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UPDATE_DEPENDFILE= NO |
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.export UPDATE_DEPENDFILE |
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.elif !exists(/dev/filemon) |
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.error ${.newline}ERROR: The filemon module (/dev/filemon) is not loaded. |
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.endif |
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.endif |
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|
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.if ${.MAKE.LEVEL} == 0 |
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# make sure dirdeps target exists and do it first |
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all: dirdeps .WAIT |
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dirdeps: |
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.NOPATH: dirdeps |
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|
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.if defined(ALL_MACHINES) |
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# the first .MAIN: is what counts |
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# by default dirdeps is all we want at level0 |
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.MAIN: dirdeps |
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# tell dirdeps.mk what we want |
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BUILD_AT_LEVEL0 = no |
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.endif |
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.if ${.TARGETS:Nall} == "" |
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# it works best if we do everything via sub-makes |
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BUILD_AT_LEVEL0 ?= no |
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.endif |
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|
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.endif |
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.else |
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META_COOKIE_TOUCH= |
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# some targets need to be .PHONY in non-meta mode |
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META_NOPHONY= .PHONY |
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META_NOECHO= echo |
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.endif |
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.endif |
