1# $FreeBSD$ 2# 3# Early setup of MAKEOBJDIR 4# 5# Default format is: /usr/obj/usr/src/[${TARGET}.${TARGET_ARCH}/]bin/sh 6# MAKEOBJDIRPREFIX is /usr/obj 7# OBJROOT is /usr/obj/usr/src/ 8# OBJTOP is /usr/obj/usr/src/[${TARGET}.${TARGET_ARCH}/] 9# MAKEOBJDIR is /usr/obj/usr/src/[${TARGET}.${TARGET_ARCH}/]bin/sh 10# 11# MAKEOBJDIRPREFIX will override the default pattern above and internally 12# set MAKEOBJDIR. If OBJROOT is set then MAKEOBJDIRPREFIX is rooted inside 13# of there. 14# 15# If MK_UNIFIED_OBJDIR is no then OBJROOT will always match OBJTOP. 16# 17# If .MAKE.LEVEL == 0 then the TARGET.TARGET_ARCH is potentially added on. 18# If .MAKE.LEVEL > 0 and MAKEOBJDIRPREFIX is set then it will not get 19# TARGET.TARGET_ARCH added in as it assumes that MAKEOBJDIRPREFIX is 20# nested in the existing OBJTOP with TARGET.TARGET_ARCH in it. 21# 22 23_default_makeobjdirprefix?= /usr/obj 24_default_makeobjdir= $${.CURDIR:S,^$${SRCTOP},$${OBJTOP},} 25 26.include <bsd.mkopt.mk> 27 28.if ${.MAKE.LEVEL} == 0 || empty(OBJROOT) 29.if ${MK_UNIFIED_OBJDIR} == "no" 30# Fall back to historical behavior. 31# We always want to set a default MAKEOBJDIRPREFIX... 32MAKEOBJDIRPREFIX?= ${_default_makeobjdirprefix} 33# but don't enforce TARGET.TARGET_ARCH unless we're at the top-level directory. 34.if ${.CURDIR} == ${SRCTOP} && \ 35 !(defined(TARGET) && defined(TARGET_ARCH) && \ 36 ${MACHINE} == ${TARGET} && ${MACHINE_ARCH} == ${TARGET_ARCH} && \ 37 !defined(CROSS_BUILD_TESTING)) 38MAKEOBJDIRPREFIX:= ${MAKEOBJDIRPREFIX}${TARGET:D/${TARGET}.${TARGET_ARCH}} 39.endif 40.endif # ${MK_UNIFIED_OBJDIR} == "no" 41 42.if !empty(MAKEOBJDIRPREFIX) 43# put things approximately where they want 44OBJROOT:= ${MAKEOBJDIRPREFIX}${SRCTOP}/ 45MAKEOBJDIRPREFIX= 46# export but do not track 47.export-env MAKEOBJDIRPREFIX 48.endif 49.if empty(MAKEOBJDIR) 50# OBJTOP set below 51MAKEOBJDIR= ${_default_makeobjdir} 52# export but do not track 53.export-env MAKEOBJDIR 54# Expand for our own use 55MAKEOBJDIR:= ${MAKEOBJDIR} 56.endif 57# SB documented at http://www.crufty.net/sjg/docs/sb-tools.htm 58.if !empty(SB) 59SB_OBJROOT?= ${SB}/obj/ 60# this is what we use below 61OBJROOT?= ${SB_OBJROOT} 62.endif 63OBJROOT?= ${_default_makeobjdirprefix}${SRCTOP}/ 64.if ${OBJROOT:M*/} != "" 65OBJROOT:= ${OBJROOT:H:tA}/ 66.else 67OBJROOT:= ${OBJROOT:H:tA}/${OBJROOT:T} 68.endif 69# Must export since OBJDIR will dynamically be based on it 70.export OBJROOT SRCTOP 71.endif 72 73.if ${MK_UNIFIED_OBJDIR} == "yes" 74OBJTOP:= ${OBJROOT}${TARGET:D${TARGET}.${TARGET_ARCH}:U${MACHINE}.${MACHINE_ARCH}} 75.else 76# TARGET.TARGET_ARCH handled in OBJROOT already. 77OBJTOP:= ${OBJROOT:H} 78.endif # ${MK_UNIFIED_OBJDIR} == "yes" 79 80# Wait to validate MAKEOBJDIR until OBJTOP is set. 81.if defined(MAKEOBJDIR) 82.if ${MAKEOBJDIR:M/*} == "" 83.error Cannot use MAKEOBJDIR=${MAKEOBJDIR}${.newline}Unset MAKEOBJDIR to get default: MAKEOBJDIR='${_default_makeobjdir}' 84.endif 85.endif 86 87# Fixup OBJROOT/OBJTOP if using MAKEOBJDIRPREFIX but leave it alone 88# for DIRDEPS_BUILD which really wants to know the absolute top at 89# all times. This intenionally comes after adding TARGET.TARGET_ARCH 90# so that is truncated away for nested objdirs. This logic also 91# will not trigger if the OBJROOT block above unsets MAKEOBJDIRPREFIX. 92.if !empty(MAKEOBJDIRPREFIX) && ${MK_DIRDEPS_BUILD} == "no" 93OBJTOP:= ${MAKEOBJDIRPREFIX}${SRCTOP} 94OBJROOT:= ${OBJTOP}/ 95.endif 96 97# Try to enable MK_AUTO_OBJ by default if we can write to the OBJROOT. Only 98# do this if AUTO_OBJ is not disabled by the user, not cleaning, and this 99# is the first make ran. 100.if 0 && ${.MAKE.LEVEL} == 0 && \ 101 ${MK_AUTO_OBJ} == "no" && empty(.MAKEOVERRIDES:MMK_AUTO_OBJ) && \ 102 !defined(WITHOUT_AUTO_OBJ) && !make(showconfig) && !make(print-dir) && \ 103 !defined(NO_OBJ) && \ 104 (${.TARGETS} == "" || ${.TARGETS:Nclean*:N*clean:Ndestroy*} != "") 105# Find the last existing directory component and check if we can write to it. 106# If the last component is a symlink then recurse on the new path. 107CheckAutoObj= \ 108DirIsCreatable() { \ 109 [ -w "$${1}" ] && return 0; \ 110 d="$${1}"; \ 111 IFS=/; \ 112 set -- $${d}; \ 113 unset dir; \ 114 while [ $$\# -gt 0 ]; do \ 115 d="$${1}"; \ 116 shift; \ 117 if [ ! -d "$${dir}$${d}/" ]; then \ 118 if [ -L "$${dir}$${d}" ]; then \ 119 dir="$$(readlink "$${dir}$${d}")/"; \ 120 for d in "$${@}"; do \ 121 dir="$${dir}$${d}/"; \ 122 done; \ 123 ret=0; \ 124 DirIsCreatable "$${dir%/}" || ret=$$?; \ 125 return $${ret}; \ 126 else \ 127 break; \ 128 fi; \ 129 fi; \ 130 dir="$${dir}$${d}/"; \ 131 done; \ 132 [ -w "$${dir}" ]; \ 133}; \ 134CheckAutoObj() { \ 135 if DirIsCreatable "$${1}"; then \ 136 echo yes; \ 137 else \ 138 echo no; \ 139 fi; \ 140} 141.if !empty(MAKEOBJDIRPREFIX) 142WANTED_OBJDIR= ${MAKEOBJDIRPREFIX}${.CURDIR} 143.else 144WANTED_OBJDIR= ${MAKEOBJDIR} 145.endif 146OBJDIR_WRITABLE!= \ 147 ${CheckAutoObj}; CheckAutoObj "${WANTED_OBJDIR}" || echo no 148# Export the decision to sub-makes. 149MK_AUTO_OBJ:= ${OBJDIR_WRITABLE} 150.export MK_AUTO_OBJ 151.elif make(showconfig) 152# Need to export for showconfig internally running make -dg1. It is enabled 153# in sys.mk by default. 154.export MK_AUTO_OBJ 155.endif # ${MK_AUTO_OBJ} == "no" && ... 156 157# Assign this directory as .OBJDIR if possible after determining if AUTO_OBJ 158# can be enabled by default. 159.if ${MK_AUTO_OBJ} == "no" 160# The expected OBJDIR already exists, set it as .OBJDIR. 161.if !empty(MAKEOBJDIRPREFIX) && exists(${MAKEOBJDIRPREFIX}${.CURDIR}) 162.OBJDIR: ${MAKEOBJDIRPREFIX}${.CURDIR} 163.elif exists(${MAKEOBJDIR}) 164.OBJDIR: ${MAKEOBJDIR} 165# Special case to work around bmake bug. If the top-level .OBJDIR does not yet 166# exist and MAKEOBJDIR is passed into environment and yield a blank value, 167# bmake will incorrectly set .OBJDIR=${SRCTOP}/ rather than the expected 168# ${SRCTOP} to match ${.CURDIR}. 169.elif ${MAKE_VERSION} <= 20170720 && \ 170 ${.CURDIR} == ${SRCTOP} && ${.OBJDIR} == ${SRCTOP}/ 171.OBJDIR: ${.CURDIR} 172.endif 173.endif # ${MK_AUTO_OBJ} == "no" 174