# This file adds functions to build glibc

# Copyright 2007 Yann E. MORIN

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

# Add the definitions common to glibc and eglibc

#   do_libc_extract

#   do_libc_start_files

#   do_libc

#   do_libc_add_ons_list

#   do_libc_min_kernel_config

. "${CT_LIB_DIR}/scripts/build/libc/glibc-eglibc.sh-common"

# Download glibc

do_libc_get() {

    local date

    local version

    local -a addons_list

    addons_list=($(do_libc_add_ons_list " "))

    # Main source

    CT_GetFile "glibc-${CT_LIBC_VERSION}"               \

               {ftp,http}://ftp.gnu.org/gnu/glibc       \

               ftp://gcc.gnu.org/pub/glibc/releases     \

               ftp://gcc.gnu.org/pub/glibc/snapshots

    # C library addons

    for addon in "${addons_list[@]}"; do

        # Never ever try to download these add-ons,

        # they've always been internal

        case "${addon}" in

            nptl)   continue;;

        esac

        case "${CT_LIBC_GLIBC_PORTS_EXTERNAL}" in

            y)   ;;

            *)   continue;;

        esac

        if ! CT_GetFile "glibc-${addon}-${CT_LIBC_VERSION}"     \

                        {ftp,http}://ftp.gnu.org/gnu/glibc      \

                        ftp://gcc.gnu.org/pub/glibc/releases    \

                        ftp://gcc.gnu.org/pub/glibc/snapshots

        then

            # Some add-ons are bundled with glibc, others are

            # bundled in their own tarball. Eg. NPTL is internal,

            # while LinuxThreads was external. Also, for old

            # versions of glibc, the libidn add-on was external,

            # but with version >=2.10, it is internal.

            CT_DoLog DEBUG "Addon '${addon}' could not be downloaded."

            CT_DoLog DEBUG "We'll see later if we can find it in the source tree"

        fi

    done

    return 0

}

# There is nothing to do for glibc check config

do_libc_check_config() {

    :

}

# Extract the files required for the libc locales

# Nothing to do

do_libc_locales_extract() {

    :

}

# Build and install the libc locales

do_libc_locales() {

    local src_dir="${CT_SRC_DIR}/glibc-${CT_LIBC_VERSION}"

    local -a extra_config

    local glibc_cflags

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

    cd "${CT_BUILD_DIR}/build-localedef"

    CT_DoLog EXTRA "Configuring C library localedef"

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

        extra_config+=("--with-pkgversion=${CT_PKGVERSION}")

        [ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")

    fi

    CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'"

    glibc_cflags="-O2 -fno-stack-protector"

    case "${CT_LIBC_ENABLE_FORTIFIED_BUILD}" in

        y)  ;;

        *)  glibc_cflags+=" -U_FORTIFY_SOURCE";;

    esac

    # ./configure is misled by our tools override wrapper for bash

    # so just tell it where the real bash is _on_the_target_!

    # Notes:

    # - ${ac_cv_path_BASH_SHELL} is only used to set BASH_SHELL

    # - ${BASH_SHELL}            is only used to set BASH

    # - ${BASH}                  is only used to set the shebang

    #                            in two scripts to run on the target

    # So we can safely bypass bash detection at compile time.

    # Should this change in a future eglibc release, we'd better

    # directly mangle the generated scripts _after_ they get built,

    # or even after they get installed...

    echo "ac_cv_path_BASH_SHELL=/bin/bash" >>config.cache

    # Configure with --prefix the way we want it on the target...

    CT_DoExecLog CFG                                                \

    CFLAGS="${glibc_cflags}"                                        \

    "${src_dir}/configure"                                          \

        --prefix=/usr                                               \

        --cache-file="$(pwd)/config.cache"                          \

        --without-cvs                                               \

        --disable-profile                                           \

        --without-gd                                                \

        --disable-debug                                             \

        "${extra_config[@]}"

    CT_DoLog EXTRA "Building C library localedef"

    CT_DoExecLog ALL make ${JOBSFLAGS}

    # The target's endianness and uint32_t alignment should be passed as options

    # to localedef, but glibc's localedef does not support these options, which

    # means that the locale files generated here will be suitable for the target

    # only if it has the same endianness and uint32_t alignment as the host's.

    CT_DoLog EXTRA "Installing C library locales"

    CT_DoExecLog ALL make ${JOBSFLAGS}                              \

                          install_root="${CT_SYSROOT_DIR}"          \

                          localedata/install-locales

}