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Makefile.libcompat

# $FreeBSD: head/Makefile.libcompat 300944 2016-05-29 06:20:36Z bdrewery $

.if !targets(__<${_this:T}>__)
__<${_this:T}>__:

# Makefile for the compatibility libraries.
# - 32-bit compat libraries on PowerPC and AMD64.
#   could also be for mips, but that doesn't work today.

# -------------------------------------------------------------------
# 32 bit world
.if ${TARGET_ARCH} == "amd64"
.if empty(TARGET_CPUTYPE)
LIB32CPUFLAGS=	-march=i686 -mmmx -msse -msse2
.else
LIB32CPUFLAGS=	-march=${TARGET_CPUTYPE}
.endif
LIB32WMAKEENV=	MACHINE=i386 MACHINE_ARCH=i386 \
		MACHINE_CPU="i686 mmx sse sse2"
LIB32WMAKEFLAGS=	\
		AS="${XAS} --32" \
		LD="${XLD} -m elf_i386_fbsd -Y P,${LIBCOMPATTMP}/usr/lib32" \
		OBJCOPY="${XOBJCOPY}"

.elif ${TARGET_ARCH} == "powerpc64"
.if empty(TARGET_CPUTYPE)
LIB32CPUFLAGS=	-mcpu=powerpc
.else
LIB32CPUFLAGS=	-mcpu=${TARGET_CPUTYPE}
.endif
LIB32WMAKEENV=	MACHINE=powerpc MACHINE_ARCH=powerpc
LIB32WMAKEFLAGS=	\
		LD="${XLD} -m elf32ppc_fbsd" \
		OBJCOPY="${XOBJCOPY}"
.endif


LIB32CFLAGS=	-m32 -DCOMPAT_32BIT
LIB32DTRACE=	${DTRACE} -32
LIB32WMAKEFLAGS+=	-DCOMPAT_32BIT

# -------------------------------------------------------------------
# soft-fp world
.if ${TARGET_ARCH} == "armv6"
LIBSOFTCFLAGS=        -DCOMPAT_SOFTFP
LIBSOFTCPUFLAGS= -mfloat-abi=softfp
LIBSOFTWMAKEENV= CPUTYPE=soft MACHINE=arm MACHINE_ARCH=armv6
LIBSOFTWMAKEFLAGS=        -DCOMPAT_SOFTFP
.endif

# -------------------------------------------------------------------
# Generic code for each type.
# Set defaults based on type.
libcompat=	${LIBCOMPAT:tl}
_LIBCOMPAT_MAKEVARS=	_OBJTREE TMP CPUFLAGS CFLAGS CXXFLAGS WMAKEENV \
			WMAKEFLAGS WMAKE
.for _var in ${_LIBCOMPAT_MAKEVARS}
.if !empty(LIB${LIBCOMPAT}${_var})
LIBCOMPAT${_var}?=	${LIB${LIBCOMPAT}${_var}}
.endif
.endfor

# Shared flags
LIBCOMPAT_OBJTREE?=	${OBJTREE}${.CURDIR}/world${libcompat}
LIBCOMPATTMP?=		${OBJTREE}${.CURDIR}/lib${libcompat}

LIBCOMPATCFLAGS+=	${LIBCOMPATCPUFLAGS} \
			-L${LIBCOMPATTMP}/usr/lib${libcompat} \
			--sysroot=${LIBCOMPATTMP} \
			${BFLAGS}

# -B is needed to find /usr/lib32/crti.o for GCC and /usr/libsoft/crti.o for
# Clang/GCC.
LIBCOMPATCFLAGS+=	-B${LIBCOMPATTMP}/usr/lib${libcompat}
.if defined(X_COMPILER_TYPE) && ${X_COMPILER_TYPE} == gcc
# GCC requires -isystem when using a cross-compiler.
LIBCOMPATCFLAGS+=	-isystem ${LIBCOMPATTMP}/usr/include
# Force using libc++ for external GCC.
LIBCOMPATCXXFLAGS+=	-isystem ${LIBCOMPATTMP}/usr/include/c++/v1 -std=c++11 \
			-nostdinc++ -L${LIBCOMPAT_OBJTREE}${.CURDIR}/lib/libc++
.endif

# Yes, the flags are redundant.
LIBCOMPATWMAKEENV+= MAKEOBJDIRPREFIX=${LIBCOMPAT_OBJTREE} \
		INSTALL="sh ${.CURDIR}/tools/install.sh" \
		PATH=${TMPPATH} \
		LIBDIR=/usr/lib${libcompat} \
		SHLIBDIR=/usr/lib${libcompat} \
		DTRACE="${LIB$COMPATDTRACE:U${DTRACE}}"
.if ${MK_META_MODE} != "no"
# Don't rebuild build-tools targets during normal build.
LIBCOMPATWMAKEENV+=	BUILD_TOOLS_META=.NOMETA_CMP
.endif
LIBCOMPATWMAKEFLAGS+= CC="${XCC} ${LIBCOMPATCFLAGS}" \
		CXX="${XCXX} ${LIBCOMPATCXXFLAGS} ${LIBCOMPATCFLAGS}" \
		CPP="${XCPP} ${LIBCOMPATCFLAGS}" \
		DESTDIR=${LIBCOMPATTMP} \
		-DNO_CPU_CFLAGS \
		MK_CTF=no \
		-DNO_LINT \
		MK_TESTS=no
LIBCOMPATWMAKE+=	${LIBCOMPATWMAKEENV} ${MAKE} ${LIBCOMPATWMAKEFLAGS} \
			MK_MAN=no MK_HTML=no
LIBCOMPATIMAKE+=	${LIBCOMPATWMAKE:NINSTALL=*:NDESTDIR=*} \
			MK_TOOLCHAIN=no ${IMAKE_INSTALL} \
			-DLIBRARIES_ONLY

_LC_LIBDIRS.yes=		lib gnu/lib
_LC_LIBDIRS.${MK_CDDL:tl}+=	cddl/lib
_LC_LIBDIRS.${MK_CRYPT:tl}+=	secure/lib
_LC_LIBDIRS.${MK_KERBEROS:tl}+=	kerberos5/lib

_LC_INCDIRS=	\
		include \
		lib/ncurses/ncursesw \
		${_LC_LIBDIRS.yes}

# Shared logic
build${libcompat}: .PHONY
	@echo
	@echo "--------------------------------------------------------------"
	@echo ">>> stage 5.1: building lib${libcompat} shim libraries"
	@echo "--------------------------------------------------------------"
	mkdir -p ${LIBCOMPATTMP}/usr/include
	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.usr.dist \
	    -p ${LIBCOMPATTMP}/usr >/dev/null
	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.include.dist \
	    -p ${LIBCOMPATTMP}/usr/include >/dev/null
	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.lib${libcompat}.dist \
	    -p ${LIBCOMPATTMP}/usr >/dev/null
.if ${MK_DEBUG_FILES} != "no"
	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.debug.dist \
	    -p ${LIBCOMPATTMP}/usr/lib >/dev/null
	mtree -deU -f ${.CURDIR}/etc/mtree/BSD.lib${libcompat}.dist \
	    -p ${LIBCOMPATTMP}/usr/lib/debug/usr >/dev/null
.endif
	mkdir -p ${WORLDTMP}
	ln -sf ${.CURDIR}/sys ${WORLDTMP}
.for _t in obj includes
.for _dir in ${_LC_INCDIRS}
	${_+_}cd ${.CURDIR}/${_dir}; ${LIBCOMPATWMAKE} MK_INCLUDES=yes \
	    DIRPRFX=${_dir}/ ${_t}
.endfor
.endfor
.for _dir in lib/ncurses/ncurses lib/ncurses/ncursesw lib/libmagic
	${_+_}cd ${.CURDIR}/${_dir}; \
	    WORLDTMP=${WORLDTMP} \
	    MAKEFLAGS="-m ${.CURDIR}/tools/build/mk ${.MAKEFLAGS}" \
	    MAKEOBJDIRPREFIX=${LIBCOMPAT_OBJTREE} ${MAKE} SSP_CFLAGS= DESTDIR= \
	    DIRPRFX=${_dir}/ -DNO_LINT -DNO_CPU_CFLAGS MK_WARNS=no MK_CTF=no \
	    build-tools
.endfor
	${_+_}cd ${.CURDIR}; \
	    ${LIBCOMPATWMAKE} -f Makefile.inc1 -DNO_FSCHG libraries
.if ${libcompat} == "32"
.for _t in obj all
	${_+_}cd ${.CURDIR}/libexec/rtld-elf; PROG=ld-elf32.so.1 ${LIBCOMPATWMAKE} \
	    -DNO_FSCHG DIRPRFX=libexec/rtld-elf/ ${_t}
	${_+_}cd ${.CURDIR}/usr.bin/ldd; PROG=ldd32 ${LIBCOMPATWMAKE} \
	    DIRPRFX=usr.bin/ldd ${_t}
.endfor
.endif

distribute${libcompat} install${libcompat}: .PHONY
.for _dir in ${_LC_LIBDIRS.yes}
	${_+_}cd ${.CURDIR}/${_dir}; ${LIBCOMPATIMAKE} ${.TARGET:S/${libcompat}$//}
.endfor
.if ${libcompat} == "32"
	${_+_}cd ${.CURDIR}/libexec/rtld-elf; \
	    PROG=ld-elf32.so.1 ${LIBCOMPATIMAKE} ${.TARGET:S/32$//}
	${_+_}cd ${.CURDIR}/usr.bin/ldd; PROG=ldd32 ${LIBCOMPATIMAKE} \
	    ${.TARGET:S/32$//}
.endif

.endif