# 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>

 #

 do_libc_get() {

     local libc_src="ftp://sourceware.org/pub/newlib"

     local avr32headers_src="http://www.atmel.com/Images"

           avr32headers_base="avr-headers-3.2.3.970"    # used below

     local avr32headers_ext=".zip"

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

         CT_GetCustom "newlib" "${CT_LIBC_VERSION}"      \

                      "${CT_LIBC_NEWLIB_CUSTOM_LOCATION}"

     else # ! custom location

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

     fi # ! custom location

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

         CT_GetFile ${avr32headers_base} ${avr32headers_ext} ${avr32headers_src}

     fi

 }

 do_libc_extract() {

     # If using custom directory location, nothing to do

     if [    "${CT_LIBC_NEWLIB_CUSTOM}" != "y"            \

          -a -d "${CT_SRC_DIR}/newlib-${CT_LIBC_VERSION}" ]; then

         return 0

     fi

     CT_Extract "newlib-${CT_LIBC_VERSION}"

     CT_Patch "newlib" "${CT_LIBC_VERSION}"

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

         # The avr32header zip file extracts to avr32/*.h

         # Put that in its directory, the same as normal tarballs

         CT_Extract ${avr32headers_base} -d ${CT_SRC_DIR}/${avr32headers_base}

     fi

 }

 do_libc_check_config() {

     :

 }

 do_libc_start_files() {

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

         CT_DoStep INFO "Installing C library headers & start files"

         CT_DoLog EXTRA "Installing Atmel's AVR32 headers"

         CT_DoExecLog ALL mkdir -p "${CT_PREFIX_DIR}/${CT_TARGET}/include"

         CT_DoExecLog ALL cp -r "${CT_SRC_DIR}/${avr32headers_base}/avr32"     \

                                "${CT_PREFIX_DIR}/${CT_TARGET}/include/"

         CT_EndStep

     fi

 }

 do_libc() {

     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_C99FMT}" = "y" ]; then

         newlib_opts+=( "--enable-newlib-io-c99-formats" )

     else

         newlib_opts+=( "--disable-newlib-io-c99-formats" )

     fi

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

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

     else

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

     fi

     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

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

         newlib_opts+=( "--disable-newlib-supplied-syscalls" )

     else

         newlib_opts+=( "--enable-newlib-supplied-syscalls" )

     fi

     [ "${CT_LIBC_NEWLIB_ENABLE_TARGET_OPTSPACE}" = "y" ] && newlib_opts+=("--enable-target-optspace")

     # 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

     CT_DoExecLog CFG                                    \

     CC_FOR_BUILD="${CT_BUILD}-gcc"                      \

     CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}"             \

     AR=${CT_TARGET}-ar                                  \

     RANLIB=${CT_TARGET}-ranlib                          \

     "${CT_SRC_DIR}/newlib-${CT_LIBC_VERSION}/configure" \

         --host=${CT_BUILD}                              \

         --target=${CT_TARGET}                           \

         --prefix=${CT_PREFIX_DIR}                       \

         "${newlib_opts[@]}"                             \

         "${CT_LIBC_NEWLIB_EXTRA_CONFIG_ARRAY[@]}"

     CT_DoLog EXTRA "Building C library"

     CT_DoExecLog ALL make ${JOBSFLAGS}

     CT_DoLog EXTRA "Installing C library"

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

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

         local -a doc_dir="${CT_BUILD_DIR}/build-libc/${CT_TARGET}"

         CT_DoLog EXTRA "Building and installing the C library manual"

         CT_DoExecLog ALL make pdf html

         # NEWLIB install-{pdf.html} fail for some versions

         CT_DoExecLog ALL mkdir -p "${CT_PREFIX_DIR}/share/doc/newlib"

         CT_DoExecLog ALL cp -av "${doc_dir}/newlib/libc/libc.pdf"   \

                                 "${doc_dir}/newlib/libm/libm.pdf"   \

                                 "${doc_dir}/newlib/libc/libc.html"  \

                                 "${doc_dir}/newlib/libm/libm.html"  \

                                 "${CT_PREFIX_DIR}/share/doc/newlib"

     fi

     CT_EndStep

 }