mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-28 16:48:52 +00:00
22fca0106e
Add an option to eglibc to optimize for size using -Os. Signed-off-by: Richard Strand <richard.strand@icomera.com>
363 lines
14 KiB
Bash
363 lines
14 KiB
Bash
# eglibc build functions (initially by Thomas JOURDAN).
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# Download eglibc repository
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do_eglibc_get() {
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CT_HasOrAbort svn
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case "${CT_LIBC_VERSION}" in
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trunk) svn_url="svn://svn.eglibc.org/trunk";;
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*) svn_url="svn://svn.eglibc.org/branches/eglibc-${CT_LIBC_VERSION}";;
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esac
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case "${CT_EGLIBC_CHECKOUT}" in
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y) svn_action="checkout";;
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*) svn_action="export --force";;
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esac
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CT_DoExecLog ALL svn ${svn_action} -r "${CT_EGLIBC_REVISION:-HEAD}" "${svn_url}" . 2>&1
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# Compress eglibc
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CT_DoExecLog ALL mv libc "eglibc-${CT_LIBC_VERSION}"
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CT_DoExecLog ALL tar cjf "eglibc-${CT_LIBC_VERSION}.tar.bz2" "eglibc-${CT_LIBC_VERSION}"
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# Compress linuxthreads, localedef and ports
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# Assign them the name the way ct-ng like it
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for addon in linuxthreads localedef ports; do
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CT_DoExecLog ALL mv "${addon}" "eglibc-${addon}-${CT_LIBC_VERSION}"
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CT_DoExecLog ALL tar cjf "eglibc-${addon}-${CT_LIBC_VERSION}.tar.bz2" "eglibc-${addon}-${CT_LIBC_VERSION}"
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done
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}
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# Download glibc
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do_libc_get() {
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# eglibc is only available through subversion, there are no
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# snapshots available. Moreover, addons will be downloaded
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# simultaneously.
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# build filename
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eglibc="eglibc-${CT_LIBC_VERSION}.tar.bz2"
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eglibc_linuxthreads="${CT_LIBC}-linuxthreads-${CT_LIBC_VERSION}.tar.bz2"
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eglibc_localedef="${CT_LIBC}-localedef-${CT_LIBC_VERSION}.tar.bz2"
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eglibc_ports="${CT_LIBC}-ports-${CT_LIBC_VERSION}.tar.bz2"
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# Check if every tarballs are already present
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if [ -f "${CT_TARBALLS_DIR}/${eglibc}" \
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-a -f "${CT_TARBALLS_DIR}/${eglibc_linuxthreads}" \
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-a -f "${CT_TARBALLS_DIR}/${eglibc_localedef}" \
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-a -f "${CT_TARBALLS_DIR}/${eglibc_ports}" \
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]; then
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CT_DoLog DEBUG "Already have 'eglibc-${CT_LIBC_VERSION}'"
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return 0
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fi
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if [ -f "${CT_LOCAL_TARBALLS_DIR}/${eglibc}" \
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-a -f "${CT_LOCAL_TARBALLS_DIR}/${eglibc_linuxthreads}" \
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-a -f "${CT_LOCAL_TARBALLS_DIR}/${eglibc_localedef}" \
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-a -f "${CT_LOCAL_TARBALLS_DIR}/${eglibc_ports}" \
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-a "${CT_FORCE_DOWNLOAD}" != "y" \
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]; then
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CT_DoLog DEBUG "Got 'eglibc-${CT_LIBC_VERSION}' from local storage"
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for file in ${eglibc} ${eglibc_linuxthreads} ${eglibc_localedef} ${eglibc_ports}; do
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CT_DoExecLog ALL ln -s "${CT_LOCAL_TARBALLS_DIR}/${file}" "${CT_TARBALLS_DIR}/${file}"
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done
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return 0
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fi
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# Not found locally, try from the network
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CT_DoLog EXTRA "Retrieving 'eglibc-${CT_LIBC_VERSION}'"
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CT_MktempDir tmp_dir
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CT_Pushd "${tmp_dir}"
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do_eglibc_get
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CT_DoLog DEBUG "Moving 'eglibc-${CT_LIBC_VERSION}' to tarball directory"
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for file in ${eglibc} ${eglibc_linuxthreads} ${eglibc_localedef} ${eglibc_ports}; do
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CT_DoExecLog ALL mv -f "${file}" "${CT_TARBALLS_DIR}"
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done
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CT_Popd
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# Remove source files
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CT_DoExecLog ALL rm -rf "${tmp_dir}"
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if [ "${CT_SAVE_TARBALLS}" = "y" ]; then
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CT_DoLog EXTRA "Saving 'eglibc-${CT_LIBC_VERSION}' to local storage"
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for file in ${eglibc} ${eglibc_linuxthreads} ${eglibc_localedef} ${eglibc_ports}; do
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CT_DoExecLog ALL mv -f "${CT_TARBALLS_DIR}/${file}" "${CT_LOCAL_TARBALLS_DIR}"
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CT_DoExecLog ALL ln -s "${CT_LOCAL_TARBALLS_DIR}/${file}" "${CT_TARBALLS_DIR}/${file}"
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done
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fi
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return 0
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}
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# Extract eglibc
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do_libc_extract() {
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CT_Extract "eglibc-${CT_LIBC_VERSION}"
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CT_Patch "eglibc-${CT_LIBC_VERSION}"
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# C library addons
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for addon in $(do_libc_add_ons_list " "); do
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# NPTL addon is not to be extracted, in any case
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[ "${addon}" = "nptl" ] && continue || true
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CT_Pushd "${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}"
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CT_Extract nochdir "eglibc-${addon}-${CT_LIBC_VERSION}"
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# Some addons have the 'long' name, while others have the
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# 'short' name, but patches are non-uniformly built with
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# either the 'long' or 'short' name, whatever the addons name
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# so we have to make symlinks from the existing to the missing
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# Fortunately for us, [ -d foo ], when foo is a symlink to a
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# directory, returns true!
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[ -d "${addon}" ] || ln -s "eglibc-${addon}-${CT_LIBC_VERSION}" "${addon}"
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[ -d "eglibc-${addon}-${CT_LIBC_VERSION}" ] || ln -s "${addon}" "eglibc-${addon}-${CT_LIBC_VERSION}"
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CT_Patch nochdir "eglibc-${addon}-${CT_LIBC_VERSION}"
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CT_Popd
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done
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# The configure files may be older than the configure.in files
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# if using a snapshot (or even some tarballs). Fake them being
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# up to date.
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find "${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}" -type f -name configure -exec touch {} \; 2>&1 |CT_DoLog ALL
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return 0
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}
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# Copy user provided eglibc configuration file if provided
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do_libc_check_config() {
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if [ "${CT_EGLIBC_CUSTOM_CONFIG}" != "y" ]; then
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return 0
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fi
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CT_DoStep INFO "Checking C library configuration"
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CT_TestOrAbort "You did not provide an eglibc config file!" \
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-n "${CT_EGLIBC_OPTION_GROUPS_FILE}" -a \
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-f "${CT_EGLIBC_OPTION_GROUPS_FILE}"
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CT_DoExecLog ALL cp "${CT_EGLIBC_OPTION_GROUPS_FILE}" "${CT_CONFIG_DIR}/eglibc.config"
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# NSS configuration
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if grep -E '^OPTION_EGLIBC_NSSWITCH[[:space:]]*=[[:space:]]*n' "${CT_EGLIBC_OPTION_GROUPS_FILE}" >/dev/null 2>&1; then
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CT_DoLog DEBUG "Using fixed-configuration nsswitch facility"
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if [ "${CT_EGLIBC_BUNDLED_NSS_CONFIG}" = "y" ]; then
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nss_config="${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/nss/fixed-nsswitch.conf"
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else
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nss_config="${CT_EGLIBC_NSS_CONFIG_FILE}"
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fi
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CT_TestOrAbort "NSS config file not found!" -n "${nss_config}" -a -f "${nss_config}"
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CT_DoExecLog ALL cp "${nss_config}" "${CT_CONFIG_DIR}/nsswitch.config"
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echo "OPTION_EGLIBC_NSSWITCH_FIXED_CONFIG = ${CT_CONFIG_DIR}/nsswitch.config" \
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>> "${CT_CONFIG_DIR}/eglibc.config"
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if [ "${CT_EGLIBC_BUNDLED_NSS_FUNCTIONS}" = "y" ]; then
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nss_functions="${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/nss/fixed-nsswitch.functions"
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else
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nss_functions="${CT_EGLIBC_NSS_FUNCTIONS_FILE}"
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fi
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CT_TestOrAbort "NSS functions file not found!" -n "${nss_functions}" -a -f "${nss_functions}"
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CT_DoExecLog ALL cp "${nss_functions}" "${CT_CONFIG_DIR}/nsswitch.functions"
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echo "OPTION_EGLIBC_NSSWITCH_FIXED_FUNCTIONS = ${CT_CONFIG_DIR}/nsswitch.functions" \
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>> "${CT_CONFIG_DIR}/eglibc.config"
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else
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CT_DoLog DEBUG "Using full-blown nsswitch facility"
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fi
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CT_EndStep
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}
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# This function installs the eglibc headers needed to build the core compiler
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do_libc_headers() {
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# Instead of doing two time the same actions, headers will
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# be installed with start files
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:
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}
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# Build and install start files
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do_libc_start_files() {
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CT_DoStep INFO "Installing C library headers / start files"
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mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles"
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cd "${CT_BUILD_DIR}/build-libc-startfiles"
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CT_DoLog EXTRA "Configuring C library"
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if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then
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CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config
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fi
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cross_cc=$(CT_Which "${CT_TARGET}-gcc")
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cross_cxx=$(CT_Which "${CT_TARGET}-g++")
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cross_ar=$(CT_Which "${CT_TARGET}-ar")
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cross_ranlib=$(CT_Which "${CT_TARGET}-ranlib")
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CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
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CT_DoLog DEBUG "Using g++ for target: '${cross_cxx}'"
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CT_DoLog DEBUG "Using ar for target: '${cross_ar}'"
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CT_DoLog DEBUG "Using ranlib for target: '${cross_ranlib}'"
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BUILD_CC="${CT_BUILD}-gcc" \
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CC=${cross_cc} \
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CXX=${cross_cxx} \
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AR=${cross_ar} \
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RANLIB=${cross_ranlib} \
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CT_DoExecLog ALL \
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"${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/configure" \
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--prefix=/usr \
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--with-headers="${CT_HEADERS_DIR}" \
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--build="${CT_BUILD}" \
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--host="${CT_TARGET}" \
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--disable-profile \
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--without-gd \
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--without-cvs \
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--enable-add-ons
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CT_DoLog EXTRA "Installing C library headers"
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# use the 'install-headers' makefile target to install the
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# headers
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CT_DoExecLog ALL \
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make install-headers \
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install_root=${CT_SYSROOT_DIR} \
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install-bootstrap-headers=yes
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CT_DoLog EXTRA "Installing C library start files"
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# there are a few object files needed to link shared libraries,
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# which we build and install by hand
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CT_DoExecLog ALL mkdir -p ${CT_SYSROOT_DIR}/usr/lib
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CT_DoExecLog ALL make csu/subdir_lib
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CT_DoExecLog ALL cp csu/crt1.o csu/crti.o csu/crtn.o \
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${CT_SYSROOT_DIR}/usr/lib
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# Finally, 'libgcc_s.so' requires a 'libc.so' to link against.
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# However, since we will never actually execute its code,
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# it doesn't matter what it contains. So, treating '/dev/null'
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# as a C source file, we produce a dummy 'libc.so' in one step
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CT_DoExecLog ALL ${cross_cc} -nostdlib -nostartfiles -shared -x c /dev/null -o ${CT_SYSROOT_DIR}/usr/lib/libc.so
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CT_EndStep
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}
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# This function builds and install the full glibc
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do_libc() {
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local -a extra_config
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CT_DoStep INFO "Installing C library"
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mkdir -p "${CT_BUILD_DIR}/build-libc"
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cd "${CT_BUILD_DIR}/build-libc"
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CT_DoLog EXTRA "Configuring C library"
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if [ "${CT_EGLIBC_CUSTOM_CONFIG}" = "y" ]; then
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CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/eglibc.config" option-groups.config
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fi
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if [ "${CT_EGLIBC_OPT_SIZE}" = "y" ]; then
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OPTIMIZE=-Os
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else
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OPTIMIZE=-O2
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fi
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# Add some default glibc config options if not given by user.
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# We don't need to be conditional on wether the user did set different
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# values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config
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extra_config+=("--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')")
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case "${CT_THREADS}" in
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nptl) extra_config+=("--with-__thread" "--with-tls");;
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linuxthreads) extra_config+=("--with-__thread" "--without-tls" "--without-nptl");;
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none) extra_config+=("--without-__thread" "--without-nptl")
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case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
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*-tls*) ;;
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*) extra_config+=("--without-tls");;
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esac
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;;
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esac
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case "${CT_SHARED_LIBS}" in
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y) extra_config+=("--enable-shared");;
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*) extra_config+=("--disable-shared");;
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esac
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case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
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y,) extra_config+=("--with-fp");;
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,y) extra_config+=("--without-fp");;
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esac
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case "$(do_libc_add_ons_list ,)" in
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"") ;;
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*) extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");;
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esac
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extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
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cross_cc=$(CT_Which "${CT_TARGET}-gcc")
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CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
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CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
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CT_DoLog DEBUG "Extra config args passed: '${extra_config[*]}'"
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CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'"
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BUILD_CC="${CT_BUILD}-gcc" \
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CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} ${OPTIMIZE}" \
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CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
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AR=${CT_TARGET}-ar \
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RANLIB=${CT_TARGET}-ranlib \
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CT_DoExecLog ALL \
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"${CT_SRC_DIR}/eglibc-${CT_LIBC_VERSION}/configure" \
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--prefix=/usr \
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--with-headers="${CT_HEADERS_DIR}" \
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--build=${CT_BUILD} \
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--host=${CT_TARGET} \
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--disable-profile \
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--without-gd \
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--without-cvs \
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"${extra_config[@]}" \
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${CT_LIBC_GLIBC_EXTRA_CONFIG}
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CT_DoLog EXTRA "Building C library"
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# eglibc build hacks
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# http://sourceware.org/ml/crossgcc/2008-10/msg00068.html
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case "${CT_ARCH},${CT_ARCH_CPU}" in
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powerpc,8??)
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CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)"
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EGLIBC_BUILD_ASFLAGS="-DBROKEN_PPC_8xx_CPU15";;
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esac
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CT_DoExecLog ALL make ASFLAGS="${EGLIBC_BUILD_ASFLAGS}"
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CT_DoLog EXTRA "Installing C library"
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CT_DoExecLog ALL make install install_root="${CT_SYSROOT_DIR}"
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CT_EndStep
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}
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# This function finishes the glibc install
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do_libc_finish() {
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# Nothing to be done for eglibc
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:
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}
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# Build up the addons list, separated with $1
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do_libc_add_ons_list() {
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local sep="$1"
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local addons_list=$(echo "${CT_LIBC_ADDONS_LIST//,/${sep}}" |tr -s ,)
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case "${CT_THREADS}" in
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none) ;;
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*) addons_list="${addons_list}${sep}${CT_THREADS}";;
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esac
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[ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
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addons_list="${addons_list%%${sep}}"
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echo "${addons_list##${sep}}"
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}
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