# Build script for the gdb debug facility

# The version of ncurses to use. Yes, it's hard-coded.

# It's used only internally by crosstool-NG, and is

# not exposed outside, so we don't care about providing

# config options for this.

CT_DEBUG_GDB_NCURSES_VERSION="5.9"

# Ditto for the expat library

CT_DEBUG_GDB_EXPAT_VERSION="2.1.0"

do_debug_gdb_parts() {

    need_gdb_src=

    need_ncurses_src=

    need_expat_src=

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

        need_gdb_src=y

    fi

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

        need_gdb_src=y

    fi

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

        need_gdb_src=y

        # GDB on Mingw depends on PDcurses, not ncurses

        if [ "${CT_MINGW32}" != "y" ]; then

            need_ncurses_src=y

        fi

        need_expat_src=y

    fi

}

do_debug_gdb_get() {

    local linaro_version

    local linaro_series

    local linaro_base_url="http://launchpad.net/gdb-linaro"

    # Account for the Linaro versioning

    linaro_version="$( echo "${CT_GDB_VERSION}"      \

                       |sed -r -e 's/^linaro-//;'   \

                     )"

    linaro_series="$( echo "${linaro_version}"      \

                      |sed -r -e 's/-.*//;'         \

                    )"

    do_debug_gdb_parts

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

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

            CT_GetCustom "gdb" "${CT_GDB_VERSION}" "${CT_GDB_CUSTOM_LOCATION}"

        else

            CT_GetFile "gdb-${CT_GDB_VERSION}"                          \

                       {ftp,http}://ftp.gnu.org/pub/gnu/gdb             \

                       ftp://sources.redhat.com/pub/gdb/{,old-}releases \

                       "${linaro_base_url}/${linaro_series}/${linaro_version}/+download"

        fi

    fi

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

        CT_GetFile "ncurses-${CT_DEBUG_GDB_NCURSES_VERSION}" .tar.gz  \

                   {ftp,http}://ftp.gnu.org/pub/gnu/ncurses \

                   ftp://invisible-island.net/ncurses

    fi

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

        CT_GetFile "expat-${CT_DEBUG_GDB_EXPAT_VERSION}" .tar.gz    \

                   http://downloads.sourceforge.net/project/expat/expat/${CT_DEBUG_GDB_EXPAT_VERSION}

    fi

}

do_debug_gdb_extract() {

    do_debug_gdb_parts

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

        # If using custom directory location, nothing to do

        if [    "${CT_GDB_CUSTOM}" = "y" \

             -a -d "${CT_SRC_DIR}/gdb-${CT_GDB_VERSION}" ]; then

            return 0

        fi

        CT_Extract "gdb-${CT_GDB_VERSION}"

        CT_Patch "gdb" "${CT_GDB_VERSION}"

    fi

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

        CT_Extract "ncurses-${CT_DEBUG_GDB_NCURSES_VERSION}"

        CT_DoExecLog ALL chmod -R u+w "${CT_SRC_DIR}/ncurses-${CT_DEBUG_GDB_NCURSES_VERSION}"

        CT_Patch "ncurses" "${CT_DEBUG_GDB_NCURSES_VERSION}"

    fi

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

        CT_Extract "expat-${CT_DEBUG_GDB_EXPAT_VERSION}"

        CT_Patch "expat" "${CT_DEBUG_GDB_EXPAT_VERSION}"

    fi

}

do_debug_gdb_build() {

    local -a extra_config

    do_debug_gdb_parts

    gdb_src_dir="${CT_SRC_DIR}/gdb-${CT_GDB_VERSION}"

    # Version 6.3 and below behave badly with gdbmi

    case "${CT_GDB_VERSION}" in

        6.2*|6.3)   extra_config+=("--disable-gdbmi");;

    esac

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

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

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

    fi

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

        local -a cross_extra_config

        local gcc_version

        CT_DoStep INFO "Installing cross-gdb"

        CT_DoLog EXTRA "Configuring cross-gdb"

        mkdir -p "${CT_BUILD_DIR}/build-gdb-cross"

        cd "${CT_BUILD_DIR}/build-gdb-cross"

        cross_extra_config=("${extra_config[@]}")

        case "${CT_THREADS}" in

            none)   cross_extra_config+=("--disable-threads");;

            *)      cross_extra_config+=("--enable-threads");;

        esac

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

            cross_extra_config+=( "--with-python=yes" )

        else

            cross_extra_config+=( "--with-python=no" )

        fi

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

            cross_extra_config+=( "--enable-sim" )

        else

            cross_extra_config+=( "--disable-sim" )

        fi

        CC_for_gdb=

        LD_for_gdb=

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

            CC_for_gdb="gcc -static"

            LD_for_gdb="ld -static"

        fi

        cross_extra_config+=("--enable-expat")

        cross_extra_config+=("--with-expat=yes")

        if [ "${CT_TOOLCHAIN_ENABLE_NLS}" != "y" ]; then

            cross_extra_config+=("--disable-nls")

        fi

        gdb_cross_configure="${gdb_src_dir}/configure"

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

        CT_DoExecLog CFG                                \

        CC="${CC_for_gdb}"                              \

        LD="${LD_for_gdb}"                              \

        "${gdb_cross_configure}"                        \

            --build=${CT_BUILD}                         \

            --host=${CT_HOST}                           \

            --target=${CT_TARGET}                       \

            --prefix="${CT_PREFIX_DIR}"                 \

            --with-build-sysroot="${CT_SYSROOT_DIR}"    \

            --with-sysroot="${CT_SYSROOT_DIR}"          \

            --disable-werror                            \

            "${cross_extra_config[@]}"                  \

            "${CT_GDB_CROSS_EXTRA_CONFIG_ARRAY[@]}"

        CT_DoLog EXTRA "Building cross-gdb"

        CT_DoExecLog ALL make ${JOBSFLAGS}

        CT_DoLog EXTRA "Installing cross-gdb"

        CT_DoExecLog ALL make install

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

            CT_DoLog EXTRA "Building and installing the cross-GDB manuals"

            CT_DoExecLog ALL make ${JOBSFLAGS} pdf html

            CT_DoExecLog ALL make install-{pdf,html}-gdb

        fi

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

            CT_DoLog EXTRA "Install '.gdbinit' template"

            # See in scripts/build/internals.sh for why we do this

            if [ -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then

                gcc_version=$( cat "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" )

            else

                gcc_version=$( sed -r -e '/version_string/!d; s/^.+= "([^"]+)".*$/\1/;' \

                                   "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/version.c"   \

                             )

            fi

            ${sed} -r                                               \

                   -e "s:@@PREFIX@@:${CT_PREFIX_DIR}:;"             \

                   -e "s:@@VERSION@@:${gcc_version}:;"              \

                   "${CT_LIB_DIR}/scripts/build/debug/gdbinit.in"   \

                   >"${CT_PREFIX_DIR}/share/gdb/gdbinit"

        fi # Install gdbinit sample

        CT_EndStep

    fi

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

        local -a native_extra_config

        local -a ncurses_opt

        local -a gdb_native_CFLAGS

        CT_DoStep INFO "Installing native gdb"

        native_extra_config=("${extra_config[@]}")

        # GDB on Mingw depends on PDcurses, not ncurses

        if [ "${CT_MINGW32}" != "y" ]; then

            CT_DoLog EXTRA "Building static target ncurses"

            CT_mkdir_pushd "${CT_BUILD_DIR}/build-ncurses-target-${CT_TARGET}"

            do_gdb_ncurses_backend host="${CT_TARGET}"                      \

                                   prefix="${CT_BUILD_DIR}/static-target"   \

                                   cflags="${CT_CFLAGS_FOR_HOST}"           \

                                   ldflags=""

            CT_Popd

            native_extra_config+=("--with-curses")

            # There's no better way to tell gdb where to find -lcurses... :-(

            gdb_native_CFLAGS+=("-I${CT_BUILD_DIR}/static-target/include")

            gdb_native_CFLAGS+=("-L${CT_BUILD_DIR}/static-target/lib")

        fi # need_ncurses_src

        # Build libexpat

        CT_DoLog EXTRA "Building static target expat"

        CT_mkdir_pushd "${CT_BUILD_DIR}/build-expat-target-${CT_TARGET}"

        do_gdb_expat_backend host="${CT_TARGET}"                    \

                             prefix="${CT_BUILD_DIR}/static-target" \

                             cflags=""                              \

                             ldflags=""

        CT_Popd

        native_extra_config+=("--with-expat")

        native_extra_config+=("--with-libexpat-prefix=${CT_BUILD_DIR}/static-target")

        CT_DoLog EXTRA "Configuring native gdb"

        mkdir -p "${CT_BUILD_DIR}/build-gdb-native"

        cd "${CT_BUILD_DIR}/build-gdb-native"

        case "${CT_THREADS}" in

            none)   native_extra_config+=("--disable-threads");;

            *)      native_extra_config+=("--enable-threads");;

        esac

        [ "${CT_TOOLCHAIN_ENABLE_NLS}" != "y" ] &&    \

        native_extra_config+=("--disable-nls")

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

            CC_for_gdb="${CT_TARGET}-gcc -static"

            LD_for_gdb="${CT_TARGET}-ld -static"

        else

            CC_for_gdb="${CT_TARGET}-gcc"

            LD_for_gdb="${CT_TARGET}-ld"

        fi

        export ac_cv_func_strncmp_works=yes

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

        CT_DoExecLog CFG                                \

        CC="${CC_for_gdb}"                              \

        LD="${LD_for_gdb}"                              \

        CFLAGS="${gdb_native_CFLAGS[*]}"                \

        "${gdb_src_dir}/configure"                      \

            --build=${CT_BUILD}                         \

            --host=${CT_TARGET}                         \

            --target=${CT_TARGET}                       \

            --prefix=/usr                               \

            --with-build-sysroot="${CT_SYSROOT_DIR}"    \

            --without-uiout                             \

            --disable-tui                               \

            --disable-gdbtk                             \

            --without-x                                 \

            --disable-sim                               \

            --disable-werror                            \

            --without-included-gettext                  \

            --without-develop                           \

            "${native_extra_config[@]}"

        CT_DoLog EXTRA "Building native gdb"

        CT_DoExecLog ALL make ${JOBSFLAGS} CC=${CT_TARGET}-${CT_CC}

        CT_DoLog EXTRA "Installing native gdb"

        CT_DoExecLog ALL make DESTDIR="${CT_DEBUGROOT_DIR}" install

        # Building a native gdb also builds a gdbserver

        find "${CT_DEBUGROOT_DIR}" -type f -name gdbserver -exec rm -fv {} \; 2>&1 |CT_DoLog ALL

        unset ac_cv_func_strncmp_works

        CT_EndStep # native gdb build

    fi

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

        local -a gdbserver_extra_config

        CT_DoStep INFO "Installing gdbserver"

        CT_DoLog EXTRA "Configuring gdbserver"

        mkdir -p "${CT_BUILD_DIR}/build-gdb-gdbserver"

        cd "${CT_BUILD_DIR}/build-gdb-gdbserver"

        # Workaround for bad versions, where the configure

        # script for gdbserver is not executable...

        # Bah, GNU folks strike again... :-(

        chmod +x "${gdb_src_dir}/gdb/gdbserver/configure"

        gdbserver_LDFLAGS=

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

            gdbserver_LDFLAGS=-static

        fi

        gdbserver_extra_config=("${extra_config[@]}")

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

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

                gdbserver_extra_config+=( --enable-inprocess-agent )

            else

                gdbserver_extra_config+=( --disable-inprocess-agent )

            fi

        fi

        CT_DoExecLog CFG                                \

        LDFLAGS="${gdbserver_LDFLAGS}"                  \

        "${gdb_src_dir}/gdb/gdbserver/configure"        \

            --build=${CT_BUILD}                         \

            --host=${CT_TARGET}                         \

            --target=${CT_TARGET}                       \

            --prefix=/usr                               \

            --sysconfdir=/etc                           \

            --localstatedir=/var                        \

            --includedir="${CT_HEADERS_DIR}"            \

            --with-build-sysroot="${CT_SYSROOT_DIR}"    \

            --program-prefix=                           \

            --without-uiout                             \

            --disable-tui                               \

            --disable-gdbtk                             \

            --without-x                                 \

            --without-included-gettext                  \

            --without-develop                           \

            --disable-werror                            \

            "${gdbserver_extra_config[@]}"

        CT_DoLog EXTRA "Building gdbserver"

        CT_DoExecLog ALL make ${JOBSFLAGS} CC=${CT_TARGET}-${CT_CC}

        CT_DoLog EXTRA "Installing gdbserver"

        CT_DoExecLog ALL make DESTDIR="${CT_DEBUGROOT_DIR}" install

        CT_EndStep

    fi

}

# Build libncurses

#   Parameter     : description               : type      : default

#   host          : machine to run on         : tuple     : (none)

#   prefix        : prefix to install into    : dir       : (none)

#   cflags        : cflags to use             : string    : (empty)

#   ldflags       : ldflags to use            : string    : (empty)

do_gdb_ncurses_backend() {

    local host

    local prefix

    local cflags

    local ldflags

    local arg

    for arg in "$@"; do

        eval "${arg// /\\ }"

    done

    [ "${CT_CC_LANG_CXX}" = "y" ] || ncurses_opts+=("--without-cxx" "--without-cxx-binding")

    [ "${CT_CC_LANG_ADA}" = "y" ] || ncurses_opts+=("--without-ada")

    CT_mkdir_pushd "build-tic"

    # We need a tic that runs on build, not on host nor on target

    # Use build = CT_REAL_BUILD so that configure thinks it is

    # cross-compiling, and thus will use the ${CT_BUILD}-*

    # tools instead of searching for the native ones...

    CT_DoExecLog CFG                                                    \

    "${CT_SRC_DIR}/ncurses-${CT_DEBUG_GDB_NCURSES_VERSION}/configure"   \

        --build=${CT_BUILD}                                             \

        --host=${CT_BUILD}                                              \

        --prefix=/usr                                                   \

        --enable-symlinks                                               \

        --with-build-cc=${CT_REAL_BUILD}-gcc                            \

        --with-build-cpp=${CT_REAL_BUILD}-gcc                           \

        --with-build-cflags="${CT_CFLAGS_FOR_HOST}"                     \

        "${ncurses_opts[@]}"

    # ncurses insists on linking tic statically. It does not work

    # on some OSes (eg. MacOS-X/Darwin/whatever-you-call-it).

    CT_DoExecLog DEBUG sed -r -i -e 's/-static//g;' "progs/Makefile"

    # Under some operating systems (eg. Winblows), there is an

    # extension appended to executables. Find that.

    tic_ext=$(grep -E '^x[[:space:]]*=' progs/Makefile |sed -r -e 's/^.*=[[:space:]]*//;')

    CT_DoExecLog ALL make ${JOBSFLAGS} -C include

    CT_DoExecLog ALL make ${JOBSFLAGS} -C progs "tic${tic_ext}"

    CT_DoExecLog ALL install -d -m 0755 "${CT_BUILDTOOLS_PREFIX_DIR}/bin"

    CT_DoExecLog ALL install -m 0755 "progs/tic${tic_ext}" "${CT_BUILDTOOLS_PREFIX_DIR}/bin"

    CT_Popd

    CT_mkdir_pushd "ncurses"

    CT_DoExecLog CFG                                                    \

    TIC_PATH="${CT_BUILDTOOLS_PREFIX_DIR}/bin/tic${tic_ext}"            \

    "${CT_SRC_DIR}/ncurses-${CT_DEBUG_GDB_NCURSES_VERSION}/configure"   \

        --build=${CT_BUILD}                                             \

        --host=${host}                                                  \

        --with-build-cc=${CT_BUILD}-gcc                                 \

        --with-build-cpp=${CT_BUILD}-gcc                                \

        --with-build-cflags="${CT_CFLAGS_FOR_HOST}"                     \

        --prefix="${prefix}"                                            \

        --without-shared                                                \

        --without-sysmouse                                              \

        --without-progs                                                 \

        --enable-termcap                                                \

        "${ncurses_opts[@]}"

    CT_DoExecLog ALL make ${JOBSFLAGS}

    CT_DoExecLog ALL make install

    CT_Popd

}

# Build libexpat

#   Parameter     : description               : type      : default

#   host          : machine to run on         : tuple     : (none)

#   prefix        : prefix to install into    : dir       : (none)

#   cflags        : cflags to use             : string    : (empty)

#   ldflags       : ldflags to use            : string    : (empty)

do_gdb_expat_backend() {

    local host

    local prefix

    local cflags

    local ldflags

    local arg

    for arg in "$@"; do

        eval "${arg// /\\ }"

    done

    CT_DoExecLog CFG                                                \

    "${CT_SRC_DIR}/expat-${CT_DEBUG_GDB_EXPAT_VERSION}/configure"   \

        --build=${CT_BUILD}                                         \

        --host=${host}                                              \

        --prefix="${prefix}"                                        \

        --enable-static                                             \

        --disable-shared

    CT_DoExecLog ALL make ${JOBSFLAGS}

    CT_DoExecLog ALL make install

}