GCCMULTILIB = "--enable-multilib"
require gcc-configure-common.inc

EXTRA_OECONF_PATHS = "\
    --with-build-sysroot=${STAGING_DIR_TARGET} \
"

EXTRA_OECONF_append_linuxstdbase = " --enable-clocale=gnu"

# Configure gcc running on the target to default to an architecture which will
# be compatible with that of gcc-runtime (which is cross compiled to be target
# specific). For example, for ARM, ARMv6+ adds atomic instructions that may
# affect the ABI in the gcc-runtime libs. Since we can't rely on gcc on the
# target to always be passed -march etc, its built-in default needs to be safe.

ARMFPARCHEXT ?= ""

EXTRA_OECONF_append_armv6_class-target = " --with-arch=armv6${ARMFPARCHEXT}"
EXTRA_OECONF_append_armv7a_class-target = " --with-arch=armv7-a${ARMFPARCHEXT}"
EXTRA_OECONF_append_armv7ve_class-target = " --with-arch=armv7ve${ARMFPARCHEXT}"
EXTRA_OECONF_append_arc_class-target = " --with-cpu=${TUNE_PKGARCH}"
EXTRA_OECONF_append_x86-64_class-target = " --with-arch=native"

# libcc1 requres gcc_cv_objdump when cross build, but gcc_cv_objdump is
# set in subdir gcc, so subdir libcc1 can't use it, export it here to
# fix the problem.
export gcc_cv_objdump = "${TARGET_PREFIX}objdump"

EXTRA_OECONF_GCC_FLOAT = "${@get_gcc_float_setting(bb, d)}"

PACKAGES = "\
    ${PN} ${PN}-plugins ${PN}-symlinks \
    g++ g++-symlinks \
    cpp cpp-symlinks \
    g77 g77-symlinks \
    gfortran gfortran-symlinks \
    gcov gcov-symlinks \
    ${PN}-doc \
    ${PN}-dev \
    ${PN}-dbg \
"

FILES_${PN} = "\
    ${bindir}/${TARGET_PREFIX}gcc* \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/collect2* \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/cc1plus \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/lto* \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/lib*${SOLIBS} \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/liblto*${SOLIBSDEV} \
    ${gcclibdir}/${TARGET_SYS}/${BINV}/*.o \
    ${gcclibdir}/${TARGET_SYS}/${BINV}/specs \
    ${gcclibdir}/${TARGET_SYS}/${BINV}/lib*${SOLIBS} \
    ${gcclibdir}/${TARGET_SYS}/${BINV}/include \
    ${gcclibdir}/${TARGET_SYS}/${BINV}/include-fixed \
"
INSANE_SKIP_${PN} += "dev-so"
RRECOMMENDS_${PN} += "\
    libssp \
    libssp-dev \
"
RDEPENDS_${PN} += "cpp"

FILES_${PN}-dev = "\
    ${gcclibdir}/${TARGET_SYS}/${BINV}/lib*${SOLIBSDEV} \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/lib*${SOLIBSDEV} \
    ${gcclibdir}/${TARGET_SYS}/${BINV}/plugin/include/ \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/plugin/gengtype \
    ${gcclibdir}/${TARGET_SYS}/${BINV}/plugin/gtype.state \
"
FILES_${PN}-symlinks = "\
    ${bindir}/cc \
    ${bindir}/gcc \
    ${bindir}/gccbug \
"

FILES_${PN}-plugins = "\
    ${gcclibdir}/${TARGET_SYS}/${BINV}/plugin \
"
ALLOW_EMPTY_${PN}-plugins = "1"

FILES_g77 = "\
    ${bindir}/${TARGET_PREFIX}g77 \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/f771 \
"
FILES_g77-symlinks = "\
    ${bindir}/g77 \
    ${bindir}/f77 \
"
RRECOMMENDS_g77 = "\
    libg2c \
    libg2c-dev \
"

FILES_gfortran = "\
    ${bindir}/${TARGET_PREFIX}gfortran \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/f951 \
"
RRECOMMENDS_gfortran = "\
    libquadmath \
    libquadmath-dev \
"
FILES_gfortran-symlinks = "\
    ${bindir}/gfortran \
    ${bindir}/f95"

FILES_cpp = "\
    ${bindir}/${TARGET_PREFIX}cpp* \
    ${base_libdir}/cpp \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/cc1"
FILES_cpp-symlinks = "${bindir}/cpp"

FILES_gcov = "${bindir}/${TARGET_PREFIX}gcov* \
    ${bindir}/${TARGET_PREFIX}gcov-tool* \
"
FILES_gcov-symlinks = "${bindir}/gcov \
    ${bindir}/gcov-tool \
"

FILES_g++ = "\
    ${bindir}/${TARGET_PREFIX}g++* \
    ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/cc1plus \
"
FILES_g++-symlinks = "\
    ${bindir}/c++ \
    ${bindir}/g++ \
"
RRECOMMENDS_g++ = "\
    libstdc++ \
    libstdc++-dev \
    libatomic \
    libatomic-dev \
"

FILES_${PN}-doc = "\
    ${infodir} \
    ${mandir} \
    ${gcclibdir}/${TARGET_SYS}/${BINV}/include/README \
"

do_compile () {
	# Prevent full target sysroot path from being used in configargs.h header,
	# as it will be rewritten when used by other sysroots preventing support
	# for gcc plugins. Additionally the path is embeddeded into the output
	# binary, this prevents building a reproducible binary.
	oe_runmake configure-gcc
	sed -i 's@${STAGING_DIR_TARGET}@/@g' ${B}/gcc/configargs.h
	sed -i 's@${STAGING_DIR_HOST}@/@g' ${B}/gcc/configargs.h

	# Prevent sysroot/workdir paths from being used in checksum-options.
	# checksum-options is used to generate a checksum which is embedded into
	# the output binary.
	oe_runmake TARGET-gcc=checksum-options all-gcc
	sed -i 's@${DEBUG_PREFIX_MAP}@@g' ${B}/gcc/checksum-options
	sed -i 's@${STAGING_DIR_TARGET}@/@g' ${B}/gcc/checksum-options

	oe_runmake all-host
}

do_install () {
	oe_runmake 'DESTDIR=${D}' install-host

	# Add unwind.h, it comes from libgcc which we don't want to build again
	install ${STAGING_LIBDIR_NATIVE}/${TARGET_SYS}/gcc/${TARGET_SYS}/${BINV}/include/unwind.h ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/include/

	# Info dir listing isn't interesting at this point so remove it if it exists.
	if [ -e "${D}${infodir}/dir" ]; then
		rm -f ${D}${infodir}/dir
	fi

	# Cleanup some of the ${libdir}{,exec}/gcc stuff ...
	rm -r ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/install-tools
	rm -r ${D}${libexecdir}/gcc/${TARGET_SYS}/${BINV}/install-tools
	rm -rf ${D}${libexecdir}/gcc/${TARGET_SYS}/${BINV}/*.la
	rmdir ${D}${includedir}
	rm -rf ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/finclude

	# Hack around specs file assumptions
	test -f ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/specs && sed -i -e '/^*cross_compile:$/ { n; s/1/0/; }' ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/specs

	# Cleanup manpages..
	rm -rf ${D}${mandir}/man7

	# Don't package details about the build host
	rm -f ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/plugin/include/auto-build.h
	rm -f ${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/plugin/include/bconfig.h

	cd ${D}${bindir}

	# We care about g++ not c++
	rm -f *c++*

	# We don't care about the gcc-<version> ones for this
	rm -f *gcc-?.?*

	# Not sure why we end up with these but we don't want them...
	rm -f ${TARGET_PREFIX}${TARGET_PREFIX}*

	# Symlinks so we can use these trivially on the target
	if [ -e ${TARGET_PREFIX}g77 ]; then
		ln -sf ${TARGET_PREFIX}g77 g77 || true
		ln -sf g77 f77 || true
	fi
	if [ -e ${TARGET_PREFIX}gfortran ]; then
		ln -sf ${TARGET_PREFIX}gfortran gfortran || true
		ln -sf gfortran f95 || true
	fi
	ln -sf ${TARGET_PREFIX}g++ g++
	ln -sf ${TARGET_PREFIX}gcc gcc
	ln -sf ${TARGET_PREFIX}cpp cpp
	ln -sf ${TARGET_PREFIX}gcov gcov
	ln -sf ${TARGET_PREFIX}gcov-tool gcov-tool
	install -d ${D}${base_libdir}
	ln -sf ${bindir}/${TARGET_PREFIX}cpp ${D}${base_libdir}/cpp
	ln -sf g++ c++
	ln -sf gcc cc

	chown -R root:root ${D}
}

do_install_append () {
        #
        # Thefixinc.sh script, run on the gcc's compile phase, looks into sysroot header
        # files and places the modified files into
        # {D}${libdir}/gcc/${TARGET_SYS}/${BINV}/include-fixed folder. This makes the
        # build not deterministic. The following code prunes all those headers
        # except those under include-fixed/linux, *limits.h and README, yielding
        # the same include-fixed folders no matter what sysroot

        include_fixed="${D}${libdir}/gcc/${TARGET_SYS}/${BINV}/include-fixed"
        for f in $(find ${include_fixed} -type f); do
                case $f in
                */include-fixed/linux/*)
                    continue
                    ;;
                */include-fixed/*limits.h)
                    continue
                    ;;
                */include-fixed/README)
                    continue
                    ;;
                *)
                    # remove file and directory if empty
                    bbdebug 2 "Pruning $f"
                    rm $f
                    find $(dirname $f) -maxdepth 0 -empty -exec rmdir {} \;
                    ;;
                esac
        done
}

# Installing /usr/lib/gcc/* means we'd have two copies, one from gcc-cross
# and one from here. These can confuse gcc cross where includes use #include_next
# and builds track file dependencies (e.g. perl and its makedepends code).
# For determinism we don't install this ever and rely on the copy from gcc-cross.
# [YOCTO #7287]
SYSROOT_DIRS_BLACKLIST += "${libdir}/gcc"