diff options
Diffstat (limited to 'contrib/bmake/mk/whats.mk')
| -rw-r--r-- | contrib/bmake/mk/whats.mk | 73 |
1 files changed, 39 insertions, 34 deletions
diff --git a/contrib/bmake/mk/whats.mk b/contrib/bmake/mk/whats.mk index 4080c12e00f8..1dacb4c14365 100644 --- a/contrib/bmake/mk/whats.mk +++ b/contrib/bmake/mk/whats.mk @@ -1,6 +1,6 @@ -# $Id: whats.mk,v 1.3 2017/10/19 06:09:14 sjg Exp $ +# $Id: whats.mk,v 1.9 2020/05/09 19:48:53 sjg Exp $ # -# @(#) Copyright (c) 2014, Simon J. Gerraty +# @(#) Copyright (c) 2014-2020, Simon J. Gerraty # # This file is provided in the hope that it will # be of use. There is absolutely NO WARRANTY. @@ -13,25 +13,18 @@ # sjg@crufty.net # -.if ${MK_WHATSTRING:Uno} != "no" -what_build_exts?= o +.if ${MK_WHATSTRING:Uno} == "yes" # it can be useful to embed a what(1) string in binaries # so that the build location can be seen from a core file. -.if defined(PROG) && ${.MAKE.MAKEFILES:M*prog.mk} != "" -what_thing?= ${PROGNAME:U${PROG}} -what_build_thing?= ${PROG} -.elif defined(LIB) && ${.MAKE.MAKEFILES:M*lib.mk} != "" -# probably only makes sense for shared libs -# and the plumbing needed varies depending on *lib.mk -what_thing?= lib${LIB} -.if !empty(SOBJS) -_soe:= ${SOBJS:E:[1]} -what_build_exts= ${_soe} -SOBJS+= ${what_uuid}.${_soe} -.endif -.elif defined(KMOD) && ${.MAKE.MAKEFILES:M*kmod.mk} != "" -what_thing?= ${KMOD} -what_build_thing?= ${KMOD}.ko +.if defined(KMOD) +what_thing ?= ${KMOD} +.elif defined(LIB) +what_thing ?= lib${LIB} +.elif defined(PROG) +what_thing ?= ${PROG} +SRCS ?= ${PROG}.c +.elif defined(SHLIB) +what_thing ?= lib${SHLIB} .endif .if !empty(what_thing) @@ -39,26 +32,38 @@ what_build_thing?= ${KMOD}.ko what_uuid = what_${what_thing}_${.CURDIR:T:hash} what_var = what_${.CURDIR:T:hash} -.if !empty(what_build_thing) -${what_build_thing}: ${what_build_exts:@e@${what_uuid}.$e@} -.endif -OBJS+= ${what_uuid}.o -CLEANFILES+= ${what_uuid}.c - +SRCS += ${what_uuid}.c +CLEANFILES += ${what_uuid}.c # we do not need to capture this -SUPPRESS_DEPEND+= *${what_uuid}.c +SUPPRESS_DEPEND += *${what_uuid}.c -SB?= ${SRCTOP:H} -SB_LOCATION?= ${HOST}:${SB} -what_location:= ${.OBJDIR:S,${SB},${SB_LOCATION},} +SB ?= ${SRCTOP:H} +SB_LOCATION ?= ${HOST}:${SB} +# make customization easy +WHAT_LOCATION ?= ${.OBJDIR:S,${SB},${SB_LOCATION},} +WHAT_1 ?= ${what_thing:tu} built ${%Y%m%d:L:localtime} by ${USER} +WHAT_2 ?= ${what_location} +WHAT_LINE_IDS ?= 1 2 +WHAT_NOCMP_LINE_IDS ?= 1 +# you can add other WHAT_* just be sure to set WHAT_LINE_IDS +# and WHAT_NOCMP_LINE_IDS accordingly # this works with clang and gcc -_what_t= const char __attribute__ ((section(".data"))) -_what1:= @(\#)${what_thing:tu} built ${%Y%m%d:L:localtime} by ${USER} -_what2:= @(\#)${what_location} +what_t = const char __attribute__ ((section(".data"))) +what_location := ${WHAT_LOCATION} +# this script is done in multiple lines so we can +# use the token ${.OODATE:MNO_META_CMP} +# to prevent the variable parts making this constantly out-of-date ${what_uuid}.c: - echo '${_what_t} ${what_var}1[] = "${_what1}";' > $@ ${.OODATE:MNO_META_CMP} - echo '${_what_t} ${what_var}2[] = "${_what2}";' >> $@ + echo 'extern const char ${WHAT_LINE_IDS:@i@${what_var}_$i[]@:ts,};' > $@ +.for i in ${WHAT_LINE_IDS} +.if ${WHAT_NOCMP_LINE_IDS:M$i} != "" + echo '${what_t} ${what_var}_$i[] = "@(#)${WHAT_$i}";' >> $@ ${.OODATE:MNO_META_CMP} +.else + echo '${what_t} ${what_var}_$i[] = "@(#)${WHAT_$i}";' >> $@ +.endif +.endfor + .endif .endif |