# This file adds functions to build the Newlib C library

# Copyright 2009 DoréDevelopment

# Licensed under the GPL v2. See COPYING in the root of this package

#

# Edited by Martin Lund <mgl@doredevelopment.dk>

#

libc_newlib_version() {

    if [ -z "${CT_LIBC_NEWLIB_CVS}" ]; then

        echo "${CT_LIBC_VERSION}"

    else

        echo "cvs${CT_LIBC_VERSION:+-${CT_LIBC_VERSION}}"

    fi

}

do_libc_get() {

    local libc_src

    local avr32headers_src

    local save_chunks

    libc_src="ftp://sources.redhat.com/pub/newlib"

    avr32headers_src="http://dev.doredevelopment.dk/avr32-toolchain/sources"

    save_chunks="${CT_DOWNLOAD_MAX_CHUNKS}"

    CT_DOWNLOAD_MAX_CHUNKS=1

    if [ -z "${CT_LIBC_NEWLIB_CVS}" ]; then

        CT_GetFile "newlib-${CT_LIBC_VERSION}" ${libc_src}

    else

        CT_GetCVS "newlib-$(libc_newlib_version)"                   \

                  ":pserver:anoncvs@sources.redhat.com:/cvs/src"    \

                  "newlib"                                          \

                  "${CT_LIBC_VERSION}"                              \

                  "newlib-$(libc_newlib_version)=src"

    fi

    if [ "${CT_ATMEL_AVR32_HEADERS}" = "y" ]; then

        CT_GetFile "avr32headers" ${avr32headers_src}

    fi

    CT_DOWNLOAD_MAX_CHUNKS="${save_chunks}"

}

do_libc_extract() {

    CT_Extract "newlib-$(libc_newlib_version)"

    CT_Patch "newlib" "$(libc_newlib_version)"

    if [ "${CT_ATMEL_AVR32_HEADERS}" = "y" ]; then

        CT_Extract "avr32headers"

    fi

}

do_libc_check_config() {

    :

}

do_libc_headers() {

    :

}

do_libc_start_files() {

    local -a newlib_opts

    CT_DoStep INFO "Installing C library"

    mkdir -p "${CT_BUILD_DIR}/build-libc"

    cd "${CT_BUILD_DIR}/build-libc"

    CT_DoLog EXTRA "Configuring C library"

    if [ "${CT_LIBC_NEWLIB_IO_FLOAT}" = "y" ]; then

        newlib_opts+=( "--enable-newlib-io-float" )

        if [ "${CT_LIBC_NEWLIB_IO_LDBL}" = "y" ]; then

            newlib_opts+=( "--enable-newlib-io-long-double" )

        else

            newlib_opts+=( "--disable-newlib-io-long-double" )

        fi

    else

        newlib_opts+=( "--disable-newlib-io-float" )

        newlib_opts+=( "--disable-newlib-io-long-double" )

    fi

    # Note: newlib handles the build/host/target a little bit differently

    # than one would expect:

    #   build  : not used

    #   host   : the machine building newlib

    #   target : the machine newlib runs on

    CC_FOR_BUILD="${CT_BUILD}-gcc"                      \

    CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS} -O"          \

    AR=${CT_TARGET}-ar                                  \

    RANLIB=${CT_TARGET}-ranlib                          \

    CT_DoExecLog CFG                                    \

    "${CT_SRC_DIR}/newlib-$(libc_newlib_version)/configure" \

        --host=${CT_BUILD}                              \

        --target=${CT_TARGET}                           \

        --prefix=${CT_PREFIX_DIR}                       \

        "${newlib_opts[@]}"

    CT_DoLog EXTRA "Building C library"

    CT_DoExecLog ALL make ${PARALLELMFLAGS}

    CT_DoLog EXTRA "Installing C library"

    CT_DoExecLog ALL make install install_root="${CT_SYSROOT_DIR}"

    CT_EndStep

}

do_libc() {

    :

}

do_libc_finish() {

    CT_DoStep INFO "Finishing C library"

    if [ "${CT_ATMEL_AVR32_HEADERS}" = "y" ]; then

        CT_DoLog EXTRA "Installing Atmel's AVR32 headers"

        CT_DoExecLog ALL cp -r ${CT_SRC_DIR}/avr32headers "${CT_PREFIX_DIR}/${CT_TARGET}/include/avr32"

    fi

    CT_EndStep

}