1# $Id: dpadd.mk,v 1.22 2016/05/31 23:30:59 sjg Exp $ 2# 3# @(#) Copyright (c) 2004, Simon J. Gerraty 4# 5# This file is provided in the hope that it will 6# be of use. There is absolutely NO WARRANTY. 7# Permission to copy, redistribute or otherwise 8# use this file is hereby granted provided that 9# the above copyright notice and this notice are 10# left intact. 11# 12# Please send copies of changes and bug-fixes to: 13# sjg@crufty.net 14# 15 16.if !target(__${.PARSEFILE}__) 17__${.PARSEFILE}__: 18 19# sometimes we play games with .CURDIR etc 20# _* hold the original values of .* 21_OBJDIR?= ${.OBJDIR} 22_CURDIR?= ${.CURDIR} 23 24.if ${_CURDIR} == ${SRCTOP} 25RELDIR=. 26RELTOP=. 27.else 28RELDIR?= ${_CURDIR:S,${SRCTOP}/,,} 29.if ${RELDIR} == ${_CURDIR} 30RELDIR?= ${_OBJDIR:S,${OBJTOP}/,,} 31.endif 32RELTOP?= ${RELDIR:C,[^/]+,..,g} 33.endif 34RELOBJTOP?= ${OBJTOP} 35RELSRCTOP?= ${SRCTOP} 36 37# we get included just about everywhere so this is handy... 38# C*DEBUG_XTRA are for defining on cmd line etc 39# so do not use in makefiles. 40.ifdef CFLAGS_DEBUG_XTRA 41CFLAGS_LAST += ${CFLAGS_DEBUG_XTRA} 42.endif 43.ifdef CXXFLAGS_DEBUG_XTRA 44CXXFLAGS_LAST += ${CXXFLAGS_DEBUG_XTRA} 45.endif 46 47.-include <local.dpadd.mk> 48 49# DPLIBS helps us ensure we keep DPADD and LDADD in sync 50DPLIBS+= ${DPLIBS_LAST} 51DPADD+= ${DPLIBS:N-*} 52.for __lib in ${DPLIBS:T:R} 53.if "${_lib:M-*}" != "" 54LDADD += ${__lib} 55.else 56LDADD += ${LDADD_${__lib}:U${__lib:T:R:S/lib/-l/:C/\.so.*//}} 57.endif 58.endfor 59 60# DPADD can contain things other than libs 61__dpadd_libs := ${DPADD:M*/lib*} 62 63# some libs have dependencies... 64# DPLIBS_* allows bsd.libnames.mk to flag libs which must be included 65# in DPADD for a given library. 66# Gather all such dependencies into __ldadd_all_xtras 67# dups will be dealt with later. 68# Note: libfoo_pic uses DPLIBS_libfoo 69__ldadd_all_xtras= 70.for __lib in ${__dpadd_libs:@d@${DPLIBS_${d:T:R:S,_pic,,}}@} 71__ldadd_all_xtras+= ${LDADD_${__lib}:U${__lib:T:R:S/lib/-l/:C/\.so.*//}} 72.if "${DPADD:M${__lib}}" == "" 73DPADD+= ${__lib} 74.endif 75.endfor 76# Last of all... for libc and libgcc 77DPADD+= ${DPADD_LAST} 78 79# de-dupuplicate __ldadd_all_xtras into __ldadd_xtras 80# in reverse order so that libs end up listed after all that needed them. 81__ldadd_xtras= 82.for __lib in ${__ldadd_all_xtras:[-1..1]} 83.if "${__ldadd_xtras:M${__lib}}" == "" || ${NEED_IMPLICIT_LDADD:tl:Uno} != "no" 84__ldadd_xtras+= ${__lib} 85.endif 86.endfor 87 88.if !empty(__ldadd_xtras) 89# now back to the original order 90__ldadd_xtras:= ${__ldadd_xtras:[-1..1]} 91LDADD+= ${__ldadd_xtras} 92.endif 93 94# Convert DPADD into -I and -L options and add them to CPPFLAGS and LDADD 95# For the -I's convert the path to a relative one. For separate objdirs 96# the DPADD paths will be to the obj tree so we need to subst anyway. 97 98# update this 99__dpadd_libs := ${DPADD:M*/lib*} 100 101# Order -L's to search ours first. 102# Avoids picking up old versions already installed. 103__dpadd_libdirs := ${__dpadd_libs:R:H:S/^/-L/g:O:u:N-L} 104LDADD += ${__dpadd_libdirs:M-L${OBJTOP}/*} 105LDADD += ${__dpadd_libdirs:N-L${OBJTOP}/*:N-L${HOST_LIBDIR:U/usr/lib}} 106.if defined(HOST_LIBDIR) && ${HOST_LIBDIR} != "/usr/lib" 107LDADD+= -L${HOST_LIBDIR} 108.endif 109 110.if !make(dpadd) 111.ifdef LIB 112# Each lib is its own src_lib, we want to include it in SRC_LIBS 113# so that the correct INCLUDES_* will be picked up automatically. 114SRC_LIBS+= ${_OBJDIR}/lib${LIB}.a 115.endif 116.endif 117 118# 119# This little bit of magic, assumes that SRC_libfoo will be 120# set if it cannot be correctly derrived from ${LIBFOO} 121# Note that SRC_libfoo and INCLUDES_libfoo should be named for the 122# actual library name not the variable name that might refer to it. 123# 99% of the time the two are the same, but the DPADD logic 124# only has the library name available, so stick to that. 125# 126 127SRC_LIBS?= 128__dpadd_libs += ${SRC_LIBS} 129DPMAGIC_LIBS += ${__dpadd_libs} \ 130 ${__dpadd_libs:@d@${DPMAGIC_LIBS_${d:T:R}}@} 131 132# we skip this for staged libs 133.for __lib in ${DPMAGIC_LIBS:O:u:N${STAGE_OBJTOP:Unot}*/lib/*} 134# 135# if SRC_libfoo is not set, then we assume that the srcdir corresponding 136# to where we found the library is correct. 137# 138SRC_${__lib:T:R} ?= ${__lib:H:S,${OBJTOP},${RELSRCTOP},} 139# 140# This is a no-brainer but just to be complete... 141# 142OBJ_${__lib:T:R} ?= ${__lib:H:S,${OBJTOP},${RELOBJTOP},} 143# 144# If INCLUDES_libfoo is not set, then we'll use ${SRC_libfoo}/h if it exists, 145# else just ${SRC_libfoo}. 146# 147INCLUDES_${__lib:T:R}?= -I${exists(${SRC_${__lib:T:R}}/h):?${SRC_${__lib:T:R}}/h:${SRC_${__lib:T:R}}} 148 149.endfor 150 151# even for staged libs we sometimes 152# need to allow direct -I to avoid cicular dependencies 153.for __lib in ${DPMAGIC_LIBS:O:u:T:R} 154.if !empty(SRC_${__lib}) && empty(INCLUDES_${__lib}) 155# must be a staged lib 156.if exists(${SRC_${__lib}}/h) 157INCLUDES_${__lib} = -I${SRC_${__lib}}/h 158.else 159INCLUDES_${__lib} = -I${SRC_${__lib}} 160.endif 161.endif 162.endfor 163 164# when linking a shared lib, avoid non pic libs 165SHLDADD+= ${LDADD:N-[lL]*} 166.for __lib in ${__dpadd_libs:u} 167.if defined(SHLIB_NAME) && ${LDADD:M-l${__lib:T:R:S,lib,,}} != "" 168.if ${__lib:T:N*_pic.a:N*.so} == "" || exists(${__lib:R}.so) 169SHLDADD+= -l${__lib:T:R:S,lib,,} 170.elif exists(${__lib:R}_pic.a) 171SHLDADD+= -l${__lib:T:R:S,lib,,}_pic 172.else 173.warning ${RELDIR}.${TARGET_SPEC} needs ${__lib:T:R}_pic.a 174SHLDADD+= -l${__lib:T:R:S,lib,,} 175.endif 176SHLDADD+= -L${__lib:H} 177.endif 178.endfor 179 180# Now for the bits we actually need 181__dpadd_incs= 182.for __lib in ${__dpadd_libs:u} 183.if (make(${PROG}_p) || defined(NEED_GPROF)) && exists(${__lib:R}_p.a) 184__ldadd=-l${__lib:T:R:S,lib,,} 185LDADD := ${LDADD:S,^${__ldadd}$,${__ldadd}_p,g} 186.endif 187.endfor 188 189# 190# We take care of duplicate suppression later. 191# don't apply :T:R too early 192__dpadd_incs += ${__dpadd_libs:u:@x@${INCLUDES_${x:T:R}}@} 193__dpadd_incs += ${__dpadd_libs:O:u:@s@${SRC_LIBS_${s:T:R}:U}@:@x@${INCLUDES_${x:T:R}}@} 194 195__dpadd_last_incs += ${__dpadd_libs:u:@x@${INCLUDES_LAST_${x:T:R}}@} 196__dpadd_last_incs += ${__dpadd_libs:O:u:@s@${SRC_LIBS_${s:T:R}:U}@:@x@${INCLUDES_LAST_${x:T:R}}@} 197 198.if defined(HOSTPROG) || ${MACHINE} == "host" 199# we want any -I/usr/* last 200__dpadd_last_incs := \ 201 ${__dpadd_last_incs:N-I/usr/*} \ 202 ${__dpadd_incs:M-I/usr/*} \ 203 ${__dpadd_last_incs:M-I/usr/*} 204__dpadd_incs := ${__dpadd_incs:N-I/usr/*} 205.endif 206 207# 208# eliminate any duplicates - but don't mess with the order 209# force evaluation now - to avoid giving make a headache 210# 211.for t in CFLAGS CXXFLAGS 212# avoid duplicates 213__$t_incs:=${$t:M-I*:O:u} 214.for i in ${__dpadd_incs} 215.if "${__$t_incs:M$i}" == "" 216$t+= $i 217__$t_incs+= $i 218.endif 219.endfor 220.endfor 221 222.for t in CFLAGS_LAST CXXFLAGS_LAST 223# avoid duplicates 224__$t_incs:=${$t:M-I*:u} 225.for i in ${__dpadd_last_incs} 226.if "${__$t_incs:M$i}" == "" 227$t+= $i 228__$t_incs+= $i 229.endif 230.endfor 231.endfor 232 233# This target is used to gather a list of 234# dir: ${DPADD} 235# entries 236.if make(*dpadd*) 237.if !target(dpadd) 238dpadd: .NOTMAIN 239.if defined(DPADD) && ${DPADD} != "" 240 @echo "${RELDIR}: ${DPADD:S,${OBJTOP}/,,}" 241.endif 242.endif 243.endif 244 245.ifdef SRC_PATHADD 246# We don't want to assume that we need to .PATH every element of 247# SRC_LIBS, but the Makefile cannot do 248# .PATH: ${SRC_libfoo} 249# since the value of SRC_libfoo must be available at the time .PATH: 250# is read - and we only just worked it out. 251# Further, they can't wait until after include of {lib,prog}.mk as 252# the .PATH is needed before then. 253# So we let the Makefile do 254# SRC_PATHADD+= ${SRC_libfoo} 255# and we defer the .PATH: until now so that SRC_libfoo will be available. 256.PATH: ${SRC_PATHADD} 257.endif 258 259# after all that, if doing -n we don't care 260.if ${.MAKEFLAGS:Ux:M-n} != "" 261DPADD = 262.elif ${.MAKE.MODE:Mmeta*} != "" && exists(${.MAKE.DEPENDFILE}) 263DPADD_CLEAR_DPADD ?= yes 264.if ${DPADD_CLEAR_DPADD} == "yes" 265# save this 266__dpadd_libs := ${__dpadd_libs} 267# we have made what use of it we can of DPADD 268DPADD = 269.endif 270.endif 271 272.endif 273