crosstool-ng/scripts/build/libc_eglibc.sh
Yann E. MORIN" 0a99eb0c77 Enable glibc to include support for kernel versions different than the version from the kernel headers.
Thanks to Nate CASE <ncase@xes-inc.com> for suggesting this use-case, and providing the patch.

 /trunk/scripts/build/libc_glibc.sh        |    4     2     2     0 +-
 /trunk/scripts/build/libc_eglibc.sh       |    2     1     1     0 +-
 /trunk/config/libc/glibc-eglibc-common.in |   44    44     0     0 +++++++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+), 3 deletions(-)
2008-08-26 21:37:46 +00:00

284 lines
10 KiB
Bash

# eglibc build functions (initially by Thomas JOURDAN).
do_print_filename() {
[ "${CT_LIBC}" = "eglibc" ] || return 0
echo "eglibc-${CT_LIBC_VERSION}"
for addon in $(do_libc_add_ons_list " "); do
# NPTL addon is not to be downloaded, in any case
[ "${addon}" = "nptl" ] && continue || true
echo "eglibc-${addon}-${CT_LIBC_VERSION}"
done
}
# Download eglibc repository
do_eglibc_get() {
CT_HasOrAbort svn
case "${CT_LIBC_VERSION}" in
trunk) svn_url="svn://svn.eglibc.org/trunk";;
*) svn_url="svn://svn.eglibc.org/branches/eglibc-${CT_LIBC_VERSION}";;
esac
CT_MktempDir tmp_dir
CT_Pushd "${tmp_dir}"
case "${CT_EGLIBC_CHECKOUT}" in
y) svn_action="checkout";;
*) svn_action="export --force";;
esac
CT_DoSetProxy ${CT_PROXY_TYPE}
CT_DoExecLog ALL svn ${svn_action} -r "${CT_EGLIBC_REVISION:-HEAD}" "${svn_url}" . 2>&1
# Compress eglibc
CT_DoExecLog ALL mv libc "${CT_LIBC_FILE}"
CT_DoExecLog ALL tar cjf "${CT_TARBALLS_DIR}/${CT_LIBC_FILE}.tar.bz2" "${CT_LIBC_FILE}"
# Compress linuxthreads, localedef and ports
# Assign them the name the way ct-ng like it
for addon in linuxthreads localedef ports; do
CT_DoExecLog ALL tar cjf "${CT_TARBALLS_DIR}/${CT_LIBC}-${addon}-${CT_LIBC_VERSION}.tar.bz2" "${addon}"
done
CT_Popd
# Remove source files
CT_DoExecLog ALL rm -rf "${tmp_dir}"
}
# Download glibc
do_libc_get() {
# eglibc is only available through subversion, there are no
# snapshots available. Moreover, addons will be downloaded
# simultaneously.
# build filename
eglibc="${CT_LIBC_FILE}.tar.bz2"
eglibc_linuxthreads="${CT_LIBC}-linuxthreads-${CT_LIBC_VERSION}.tar.bz2"
eglibc_localedef="${CT_LIBC}-localedef-${CT_LIBC_VERSION}.tar.bz2"
eglibc_ports="${CT_LIBC}-ports-${CT_LIBC_VERSION}.tar.bz2"
# Check if every tarballs are already present
if [ -a "${CT_TARBALLS_DIR}/${eglibc}" ] && \
[ -a "${CT_TARBALLS_DIR}/${eglibc_linuxthreads}" ] && \
[ -a "${CT_TARBALLS_DIR}/${eglibc_localedef}" ] && \
[ -a "${CT_TARBALLS_DIR}/${eglibc_ports}" ]; then
CT_DoLog DEBUG "Already have 'eglibc-${CT_LIBC_VERSION}'"
return 0
fi
if [ -a "${CT_LOCAL_TARBALLS_DIR}/${eglibc}" ] && \
[ -a "${CT_LOCAL_TARBALLS_DIR}/${eglibc_linuxthreads}" ] && \
[ -a "${CT_LOCAL_TARBALLS_DIR}/${eglibc_localedef}" ] && \
[ -a "${CT_LOCAL_TARBALLS_DIR}/${eglibc_ports}" ] && \
[ "${CT_FORCE_DOWNLOAD}" != "y" ]; then
CT_DoLog DEBUG "Got 'eglibc-${CT_LIBC_VERSION}' from local storage"
for file in ${eglibc} ${eglibc_linuxthreads} ${eglibc_localedef} ${eglibc_ports}; do
CT_DoExecLog ALL ln -s "${CT_LOCAL_TARBALLS_DIR}/${file}" "${CT_TARBALLS_DIR}/${file}"
done
return 0
fi
# Not found locally, try from the network
CT_DoLog EXTRA "Retrieving 'eglibc-${CT_LIBC_VERSION}'"
do_eglibc_get
if [ "${CT_SAVE_TARBALLS}" = "y" ]; then
CT_DoLog EXTRA "Saving 'eglibc-${CT_LIBC_VERSION}' to local storage"
for file in ${eglibc} ${eglibc_linuxthreads} ${eglibc_localedef} ${eglibc_ports}; do
CT_DoExecLog ALL mv -f "${CT_TARBALLS_DIR}/${file}" "${CT_LOCAL_TARBALLS_DIR}"
CT_DoExecLog ALL ln -s "${CT_LOCAL_TARBALLS_DIR}/${file}" "${CT_TARBALLS_DIR}/${file}"
done
fi
return 0
}
# Extract eglibc
do_libc_extract() {
CT_ExtractAndPatch "${CT_LIBC_FILE}"
# C library addons
for addon in $(do_libc_add_ons_list " "); do
# NPTL addon is not to be extracted, in any case
[ "${addon}" = "nptl" ] && continue || true
CT_ExtractAndPatch "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
done
return 0
}
# There is nothing to do for eglibc check config
do_libc_check_config() {
:
}
# This function installs the glibc headers needed to build the core compiler
do_libc_headers() {
# Instead of doing two time the same actions, headers will
# be installed with start files
:
}
# Build and install start files
do_libc_start_files() {
CT_DoStep INFO "Installing C library headers / start files"
mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles"
cd "${CT_BUILD_DIR}/build-libc-startfiles"
CT_DoLog EXTRA "Configuring C library"
cross_cc=$(CT_Which "${CT_TARGET}-gcc")
cross_cxx=$(CT_Which "${CT_TARGET}-g++")
cross_ar=$(CT_Which "${CT_TARGET}-ar")
cross_ranlib=$(CT_Which "${CT_TARGET}-ranlib")
CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
CT_DoLog DEBUG "Using g++ for target: '${cross_cxx}'"
CT_DoLog DEBUG "Using ar for target: '${cross_ar}'"
CT_DoLog DEBUG "Using ranlib for target: '${cross_ranlib}'"
BUILD_CC=${CT_CC_NATIVE} \
CC=${cross_cc} \
CXX=${cross_cxx} \
AR=${cross_ar} \
RANLIB=${cross_ranlib} \
CT_DoExecLog ALL \
"${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
--prefix=/usr \
--with-headers="${CT_HEADERS_DIR}" \
--build="${CT_UNIQ_BUILD}" \
--host="${CT_TARGET}" \
--disable-profile \
--without-gd \
--without-cvs \
--enable-add-ons
CT_DoLog EXTRA "Installing C library headers"
# use the 'install-headers' makefile target to install the
# headers
CT_DoExecLog ALL \
make install-headers \
install_root=${CT_SYSROOT_DIR} \
install-bootstrap-headers=yes
CT_DoLog EXTRA "Installing C library start files"
# there are a few object files needed to link shared libraries,
# which we build and install by hand
CT_DoExecLog ALL mkdir -p ${CT_SYSROOT_DIR}/usr/lib
CT_DoExecLog ALL make csu/subdir_lib
CT_DoExecLog ALL cp csu/crt1.o csu/crti.o csu/crtn.o \
${CT_SYSROOT_DIR}/usr/lib
# Finally, 'libgcc_s.so' requires a 'libc.so' to link against.
# However, since we will never actually execute its code,
# it doesn't matter what it contains. So, treating '/dev/null'
# as a C source file, we produce a dummy 'libc.so' in one step
CT_DoExecLog ALL ${cross_cc} -nostdlib -nostartfiles -shared -x c /dev/null -o ${CT_SYSROOT_DIR}/usr/lib/libc.so
CT_EndStep
}
# This function builds and install the full glibc
do_libc() {
CT_DoStep INFO "Installing C library"
mkdir -p "${CT_BUILD_DIR}/build-libc"
cd "${CT_BUILD_DIR}/build-libc"
CT_DoLog EXTRA "Configuring C library"
# Add some default glibc config options if not given by user.
# We don't need to be conditional on wether the user did set different
# values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config
extra_config="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
case "${CT_THREADS}" in
nptl) extra_config="${extra_config} --with-__thread --with-tls";;
linuxthreads) extra_config="${extra_config} --with-__thread --without-tls --without-nptl";;
none) extra_config="${extra_config} --without-__thread --without-nptl"
case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
*-tls*) ;;
*) extra_config="${extra_config} --without-tls";;
esac
;;
esac
case "${CT_SHARED_LIBS}" in
y) extra_config="${extra_config} --enable-shared";;
*) extra_config="${extra_config} --disable-shared";;
esac
case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
y,) extra_config="${extra_config} --with-fp";;
,y) extra_config="${extra_config} --without-fp";;
esac
case "$(do_libc_add_ons_list ,)" in
"") ;;
*) extra_config="${extra_config} --enable-add-ons=$(do_libc_add_ons_list ,)";;
esac
extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
cross_cc=$(CT_Which "${CT_TARGET}-gcc")
CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
CT_DoLog DEBUG "Extra config args passed: '${extra_config}'"
CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'"
BUILD_CC=${CT_CC_NATIVE} \
CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O" \
CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
AR=${CT_TARGET}-ar \
RANLIB=${CT_TARGET}-ranlib \
CT_DoExecLog ALL \
"${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
--prefix=/usr \
--with-headers="${CT_HEADERS_DIR}" \
--build=${CT_UNIQ_BUILD} \
--host=${CT_TARGET} \
--disable-profile \
--without-gd \
--without-cvs \
${extra_config} \
${CT_LIBC_GLIBC_EXTRA_CONFIG}
CT_DoLog EXTRA "Building C library"
CT_DoExecLog ALL make
CT_DoLog EXTRA "Installing C library"
CT_DoExecLog ALL make install install_root="${CT_SYSROOT_DIR}"
CT_EndStep
}
# This function finishes the glibc install
do_libc_finish() {
# Nothing to be done for eglibc
:
}
# Build up the addons list, separated with $1
do_libc_add_ons_list() {
local sep="$1"
local addons_list=$(echo "${CT_LIBC_ADDONS_LIST//,/${sep}}" |tr -s ,)
case "${CT_THREADS}" in
none) ;;
*) addons_list="${addons_list}${sep}${CT_THREADS}";;
esac
[ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
addons_list="${addons_list%%${sep}}"
echo "${addons_list##${sep}}"
}