# This file declares functions to install the uClibc C library

 # Copyright 2007 Yann E. MORIN

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

 # This is a constant because it does not change very often.

 # We're in 2010, and are still using data from 7 years ago.

 uclibc_locales_version=030818

 uclibc_local_tarball="uClibc-locales-${uclibc_locale_version}"

 # Download uClibc

 do_libc_get() {

     libc_src="http://www.uclibc.org/downloads

               http://www.uclibc.org/downloads/snapshots

               http://www.uclibc.org/downloads/old-releases"

     # For uClibc, we have almost every thing: releases, and snapshots

     # for the last month or so. We'll have to deal with svn revisions

     # later...

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

     # uClibc locales

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

         CT_GetFile "${uclibc_local_tarball}" ${libc_src}

     fi

     return 0

 }

 libc_uclibc_src_dir() {

     if [    -z "${CT_LIBC_V_snapshot}"      \

          -a -z "${CT_LIBC_V_specific_date}" \

        ]; then

         echo "${CT_SRC_DIR}/uClibc-${CT_LIBC_VERSION}"

     else

         echo "${CT_SRC_DIR}/uClibc"

     fi

 }

 # Extract uClibc

 do_libc_extract() {

     CT_Extract "uClibc-${CT_LIBC_VERSION}"

     # Don't patch snapshots

     if [    -z "${CT_LIBC_V_snapshot}"      \

          -a -z "${CT_LIBC_V_specific_date}" \

        ]; then

         CT_Patch "uClibc" "${CT_LIBC_VERSION}"

     fi

     # uClibc locales

     # Extracting pregen locales ourselves is kinda

     # broken, so just link it in place...

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

          -a ! -f "${CT_SRC_DIR}/.${uclibc_local_tarball}.extracted" ]; then

         CT_Pushd "$(libc_uclibc_src_dir)/extra/locale"

         CT_DoExecLog ALL ln -s "${CT_TARBALLS_DIR}/${uclibc_local_tarball}.tgz" .

         CT_Popd

         touch "${CT_SRC_DIR}/.${uclibc_local_tarball}.extracted"

     fi

     return 0

 }

 # Check that uClibc has been previously configured

 do_libc_check_config() {

     CT_DoStep INFO "Checking C library configuration"

     CT_TestOrAbort "You did not provide a uClibc config file!" -n "${CT_LIBC_UCLIBC_CONFIG_FILE}" -a -f "${CT_LIBC_UCLIBC_CONFIG_FILE}"

     if grep -E '^KERNEL_SOURCE=' "${CT_LIBC_UCLIBC_CONFIG_FILE}" >/dev/null 2>&1; then

         CT_DoLog WARN "Your uClibc version refers to the kernel _sources_, which is bad."

         CT_DoLog WARN "I can't guarantee that our little hack will work. Please try to upgrade."

     fi

     CT_DoLog EXTRA "Munging uClibc configuration"

     mungeuClibcConfig "${CT_LIBC_UCLIBC_CONFIG_FILE}" "${CT_CONFIG_DIR}/uClibc.config"

     CT_EndStep

 }

 # This functions installs uClibc's headers

 do_libc_headers() {

     local install_rule

     local cross

     CT_DoStep INFO "Installing C library headers"

     # Simply copy files until uClibc has the ability to build out-of-tree

     CT_DoLog EXTRA "Copying sources to build dir"

     CT_DoExecLog ALL cp -av "$(libc_uclibc_src_dir)"            \

                             "${CT_BUILD_DIR}/build-libc-headers"

     cd "${CT_BUILD_DIR}/build-libc-headers"

     # Retrieve the config file

     CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/uClibc.config" .config

     # uClibc uses the CROSS environment variable as a prefix to the

     # compiler tools to use.  Setting it to the empty string forces

     # use of the native build host tools, which we need at this

     # stage, as we don't have target tools yet.

     # BUT! With NPTL, we need a cross-compiler (and we have it)

     if [ "${CT_THREADS}" = "nptl" ]; then

         cross="${CT_TARGET}-"

     fi

     # Force the date of the pregen locale data, as the

     # newer ones that are referenced are not available

     CT_DoLog EXTRA "Applying configuration"

     CT_DoYes "" |CT_DoExecLog ALL                                   \

                  make CROSS="${cross}"                              \

                  PREFIX="${CT_SYSROOT_DIR}/"                        \

                  LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \

                  oldconfig

     CT_DoLog EXTRA "Building headers"

     CT_DoExecLog ALL                                        \

     make ${CT_LIBC_UCLIBC_VERBOSITY}                        \

          CROSS="${cross}"                                   \

          PREFIX="${CT_SYSROOT_DIR}/"                        \

          LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \

          headers

     if [ "${CT_LIBC_UCLIBC_0_9_30_or_later}" = "y" ]; then

         install_rule=install_headers

     else

         install_rule=install_dev

     fi

     CT_DoLog EXTRA "Installing headers"

     CT_DoExecLog ALL                                        \

     make ${CT_LIBC_UCLIBC_VERBOSITY}                        \

          CROSS="${cross}"                                   \

          PREFIX="${CT_SYSROOT_DIR}/"                        \

          LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \

          ${install_rule}

     if [ "${CT_THREADS}" = "nptl" ]; then

         CT_DoLog EXTRA "Building start files"

         CT_DoExecLog ALL                                        \

         make ${CT_LIBC_UCLIBC_PARALLEL:+${PARALLELMFLAGS}}      \

              CROSS="${cross}"                                   \

              PREFIX="${CT_SYSROOT_DIR}/"                        \

              STRIPTOOL=true                                     \

              ${CT_LIBC_UCLIBC_VERBOSITY}                        \

              LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \

              lib/crt1.o lib/crti.o lib/crtn.o

         # From:  http://git.openembedded.org/cgit.cgi/openembedded/commit/?id=ad5668a7ac7e0436db92e55caaf3fdf782b6ba3b

         # libm.so is needed for ppc, as libgcc is linked against libm.so

         # No problem to create it for other archs.

         CT_DoLog EXTRA "Building dummy shared libs"

         CT_DoExecLog ALL "${cross}gcc" -nostdlib        \

                                        -nostartfiles    \

                                        -shared          \

                                        -x c /dev/null   \

                                        -o libdummy.so

         CT_DoLog EXTRA "Installing start files"

         CT_DoExecLog ALL install -m 0644 lib/crt1.o lib/crti.o lib/crtn.o   \

                                          "${CT_SYSROOT_DIR}/usr/lib"

         CT_DoLog EXTRA "Installing dummy shared libs"

         CT_DoExecLog ALL install -m 0755 libdummy.so "${CT_SYSROOT_DIR}/usr/lib/libc.so"

         CT_DoExecLog ALL install -m 0755 libdummy.so "${CT_SYSROOT_DIR}/usr/lib/libm.so"

     fi # CT_THREADS == nptl

     CT_EndStep

 }

 # Build and install start files

 do_libc_start_files() {

     :

 }

 # This function build and install the full uClibc

 do_libc() {

     CT_DoStep INFO "Installing C library"

     # Simply copy files until uClibc has the ability to build out-of-tree

     CT_DoLog EXTRA "Copying sources to build dir"

     CT_DoExecLog ALL cp -av "$(libc_uclibc_src_dir)"    \

                             "${CT_BUILD_DIR}/build-libc"

     cd "${CT_BUILD_DIR}/build-libc"

     # Retrieve the config file

     CT_DoExecLog ALL cp "${CT_CONFIG_DIR}/uClibc.config" .config

     # uClibc uses the CROSS environment variable as a prefix to the compiler

     # tools to use.  The newly built tools should be in our path, so we need

     # only give the correct name for them.

     # Note about CFLAGS: In uClibc, CFLAGS are generated by Rules.mak,

     # depending  on the configuration of the library. That is, they are tailored

     # to best fit the target. So it is useless and seems to be a bad thing to

     # use LIBC_EXTRA_CFLAGS here.

     CT_DoLog EXTRA "Applying configuration"

     CT_DoYes "" |CT_DoExecLog ALL                                   \

                  make CROSS=${CT_TARGET}-                           \

                  PREFIX="${CT_SYSROOT_DIR}/"                        \

                  LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \

                  oldconfig

     # We do _not_ want to strip anything for now, in case we specifically

     # asked for a debug toolchain, thus the STRIPTOOL= assignment

     # /Old/ versions can not build in //

     CT_DoLog EXTRA "Building C library"

     CT_DoExecLog ALL                                        \

     make -j1                                                \

          CROSS=${CT_TARGET}-                                \

          PREFIX="${CT_SYSROOT_DIR}/"                        \

          STRIPTOOL=true                                     \

          ${CT_LIBC_UCLIBC_VERBOSITY}                        \

          LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \

          pregen

     CT_DoExecLog ALL                                        \

     make ${CT_LIBC_UCLIBC_PARALLEL:+${PARALLELMFLAGS}}      \

          CROSS=${CT_TARGET}-                                \

          PREFIX="${CT_SYSROOT_DIR}/"                        \

          STRIPTOOL=true                                     \

          ${CT_LIBC_UCLIBC_VERBOSITY}                        \

          LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \

          all

     # YEM-FIXME:

     # - we want to install 'runtime' files, eg. lib*.{a,so*}, crti.o and

     #   such files, except the headers as they already are installed

     # - "make install_dev" installs the headers, the crti.o... and the

     #   static libs, but not the dynamic libs

     # - "make install_runtime" installs the dynamic libs only

     # - "make install" calls install_runtime and install_dev

     # - so we're left with re-installing the headers... Sigh...

     #

     # We do _not_ want to strip anything for now, in case we specifically

     # asked for a debug toolchain, hence the STRIPTOOL= assignment

     #

     # Note: PARALLELMFLAGS is not usefull for installation.

     #

     CT_DoLog EXTRA "Installing C library"

     CT_DoExecLog ALL                                        \

     make CROSS=${CT_TARGET}-                                \

          PREFIX="${CT_SYSROOT_DIR}/"                        \

          STRIPTOOL=true                                     \

          ${CT_LIBC_UCLIBC_VERBOSITY}                        \

          LOCALE_DATA_FILENAME="${uclibc_local_tarball}.tgz" \

          install

     CT_EndStep

 }

 # This function is used to install those components needing the final C compiler

 do_libc_finish() {

     :

 }

 # Initialises the .config file to sensible values

 # $1: original file

 # $2: munged file

 mungeuClibcConfig() {

     src_config_file="$1"

     dst_config_file="$2"

     munge_file="${CT_BUILD_DIR}/munge-uClibc-config.sed"

     # Start with a fresh file

     rm -f "${munge_file}"

     touch "${munge_file}"

     # Do it all in a sub-shell, it's easier to redirect output

     (

     # Hack our target in the config file.

     case "${CT_ARCH}:${CT_ARCH_BITNESS}" in

         x86:32)      arch=i386;;

         x86:64)      arch=x86_64;;

         sh:32)       arch="sh";;

         sh:64)       arch="sh64";;

         blackfin:32) arch="bfin";;

         *)           arch="${CT_ARCH}";;

     esac

     # Also remove stripping: its the responsibility of the

     # firmware builder to strip or not.

     cat <<-ENDSED

 		s/^(TARGET_.*)=y$/# \\1 is not set/

 		s/^# TARGET_${arch} is not set/TARGET_${arch}=y/

 		s/^TARGET_ARCH=".*"/TARGET_ARCH="${arch}"/

 		s/.*(DOSTRIP).*/# \\1 is not set/

 		ENDSED

     # Ah. We may one day need architecture-specific handler here...

     if [ "${CT_ARCH}" = "arm" ]; then

         # Hack the ARM {E,O}ABI into the config file

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

             cat <<-ENDSED

 				s/.*(CONFIG_ARM_OABI).*/# \\1 is not set/

 				s/.*(CONFIG_ARM_EABI).*/\\1=y/

 				ENDSED

         else

             cat <<-ENDSED

 				s/.*(CONFIG_ARM_OABI).*/\\1=y/

 				s/.*(CONFIG_ARM_EABI).*/# \\1 is not set/

 				ENDSED

         fi

     fi

     # Accomodate for old and new uClibc versions, where the

     # way to select between big/little endian has changed

     case "${CT_ARCH_BE},${CT_ARCH_LE}" in

         y,) cat <<-ENDSED

 				s/.*(ARCH_LITTLE_ENDIAN).*/# \\1 is not set/

 				s/.*(ARCH_BIG_ENDIAN).*/\\1=y/

 				s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/# \\1 is not set/

 				s/.*(ARCH_WANTS_BIG_ENDIAN).*/\\1=y/

 				ENDSED

         ;;

         ,y) cat <<-ENDSED

 				s/.*(ARCH_LITTLE_ENDIAN).*/\\1=y/

 				s/.*(ARCH_BIG_ENDIAN).*/# \\1 is not set/

 				s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/\\1=y/

 				s/.*(ARCH_WANTS_BIG_ENDIAN).*/# \\1 is not set/

 				ENDSED

         ;;

     esac

     # Accomodate for old and new uClibc version, where the

     # way to select between hard/soft float has changed

     case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in

         y,) cat <<-ENDSED

 				s/^[^_]*(HAS_FPU).*/\\1=y/

 				s/.*(UCLIBC_HAS_FPU).*/\\1=y/

 				ENDSED

             ;;

         ,y) cat <<-ENDSED

 				s/^[^_]*(HAS_FPU).*/\\# \\1 is not set/

 				s/.*(UCLIBC_HAS_FPU).*/# \\1 is not set/

 				ENDSED

             ;;

     esac

     # Change paths to work with crosstool-NG

     # From http://www.uclibc.org/cgi-bin/viewcvs.cgi?rev=16846&view=rev

     #  " we just want the kernel headers, not the whole kernel source ...

     #  " so people may need to update their paths slightly

     quoted_kernel_source=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/include/?$,,; s,/,\\/,g;')

     quoted_headers_dir=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/,\\/,g;')

     # CROSS_COMPILER_PREFIX is left as is, as the CROSS parameter is forced on the command line

     # DEVEL_PREFIX is left as '/usr/' because it is post-pended to $PREFIX, wich is the correct value of ${PREFIX}/${TARGET}

     # Some (old) versions of uClibc use KERNEL_SOURCE (which is _wrong_), and

     # newer versions use KERNEL_HEADERS (which is right).

     cat <<-ENDSED

 		s/^DEVEL_PREFIX=".*"/DEVEL_PREFIX="\\/usr\\/"/

 		s/^RUNTIME_PREFIX=".*"/RUNTIME_PREFIX="\\/"/

 		s/^SHARED_LIB_LOADER_PREFIX=.*/SHARED_LIB_LOADER_PREFIX="\\/lib\\/"/

 		s/^KERNEL_SOURCE=".*"/KERNEL_SOURCE="${quoted_kernel_source}"/

 		s/^KERNEL_HEADERS=".*"/KERNEL_HEADERS="${quoted_headers_dir}"/

 		s/^UCLIBC_DOWNLOAD_PREGENERATED_LOCALE=y/\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE is not set/

 		ENDSED

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

         if grep UCLIBC_EXTRA_CFLAGS extra/Configs/Config.in >/dev/null 2>&1; then

             # Good, there is special provision for such things as -pipe!

             cat <<-ENDSED

 				s/^(UCLIBC_EXTRA_CFLAGS=".*)"$/\\1 -pipe"/

 				ENDSED

         else

             # Hack our -pipe into WARNINGS, which will be internally incorporated to

             # CFLAGS. This a dirty hack, but yet needed

             cat <<-ENDSED

 				s/^(WARNINGS=".*)"$/\\1 -pipe"/

 				ENDSED

         fi

     fi

     # Locales support

     # Note that the two PREGEN_LOCALE and the XLOCALE lines may be missing

     # entirely if LOCALE is not set.  If LOCALE was already set, we'll

     # assume the user has already made all the appropriate generation

     # arrangements.  Note that having the uClibc Makefile download the

     # pregenerated locales is not compatible with crosstool; besides,

     # crosstool downloads them as part of getandpatch.sh.

     case "${CT_LIBC_UCLIBC_LOCALES}:${CT_LIBC_UCLIBC_LOCALES_PREGEN_DATA}" in

         :*)

             ;;

         y:)

             cat <<-ENDSED

 				s/^# UCLIBC_HAS_LOCALE is not set/UCLIBC_HAS_LOCALE=y\\

 				# UCLIBC_PREGENERATED_LOCALE_DATA is not set\\

 				# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\

 				# UCLIBC_HAS_XLOCALE is not set/

 				ENDSED

             ;;

         y:y)

             cat <<-ENDSED

 				s/^# UCLIBC_HAS_LOCALE is not set/UCLIBC_HAS_LOCALE=y\\

 				UCLIBC_PREGENERATED_LOCALE_DATA=y\\

 				# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\

 				# UCLIBC_HAS_XLOCALE is not set/

 				ENDSED

             ;;

     esac

     # WCHAR support

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

         cat <<-ENDSED

 			s/^.*UCLIBC_HAS_WCHAR.*/UCLIBC_HAS_WCHAR=y/

 			ENDSED

     else

         cat <<-ENDSED

 			s/^.*UCLIBC_HAS_WCHAR.*/UCLIBC_HAS_WCHAR=n/

 			ENDSED

     fi

     # Force on options needed for C++ if we'll be making a C++ compiler.

     # I'm not sure locales are a requirement for doing C++... Are they?

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

         cat <<-ENDSED

 			s/^# DO_C99_MATH is not set/DO_C99_MATH=y/

 			s/^# UCLIBC_CTOR_DTOR is not set/UCLIBC_CTOR_DTOR=y/

 			s/^# UCLIBC_HAS_GNU_GETOPT is not set/UCLIBC_HAS_GNU_GETOPT=y/

 			ENDSED

     fi

     # Push the threading model

     # Note: we take into account all of the .28, .29, .30 and .31

     #       versions, here. Even snapshots with NPTL.

     case "${CT_THREADS}:${CT_LIBC_UCLIBC_LNXTHRD}" in

         none:)

             cat <<-ENDSED

 				s/^UCLIBC_HAS_THREADS=y/# UCLIBC_HAS_THREADS is not set/

 				s/^LINUXTHREADS_OLD=y/# LINUXTHREADS_OLD is not set/

 				s/^LINUXTHREADS_NEW=y/# LINUXTHREADS_NEW is not set/

 				s/^UCLIBC_HAS_THREADS_NATIVE=y/# UCLIBC_HAS_THREADS_NATIVE is not set/

 				ENDSED

             ;;

         linuxthreads:old)

             cat <<-ENDSED

 				s/^# UCLIBC_HAS_THREADS is not set/UCLIBC_HAS_THREADS=y/

 				s/^# LINUXTHREADS_OLD is not set/LINUXTHREADS_OLD=y/

 				s/^LINUXTHREADS_NEW=y/# LINUXTHREADS_NEW is not set/

 				s/^UCLIBC_HAS_THREADS_NATIVE=y/# UCLIBC_HAS_THREADS_NATIVE is not set/

 				ENDSED

             ;;

         linuxthreads:new)

             cat <<-ENDSED

 				s/^# UCLIBC_HAS_THREADS is not set/UCLIBC_HAS_THREADS=y/

 				s/^LINUXTHREADS_OLD=y/# LINUXTHREADS_OLD is not set/

 				s/^# LINUXTHREADS_NEW is not set/LINUXTHREADS_NEW=y/

 				s/^UCLIBC_HAS_THREADS_NATIVE=y/# UCLIBC_HAS_THREADS_NATIVE is not set/

 				ENDSED

             ;;

         nptl:)

             cat <<-ENDSED

 				s/^HAS_NO_THREADS=y/# HAS_NO_THREADS is not set/

 				s/^UCLIBC_HAS_THREADS=y/# UCLIBC_HAS_THREADS is not set/

 				s/^LINUXTHREADS_OLD=y/# LINUXTHREADS_OLD is not set/

 				s/^LINUXTHREADS_NEW=y/# LINUXTHREADS_NEW is not set/

 				s/^# UCLIBC_HAS_THREADS_NATIVE is not set/UCLIBC_HAS_THREADS_NATIVE=y/

 				ENDSED

             ;;

         *)

             CT_Abort "Incorrect thread settings: CT_THREADS='${CT_THREAD}' CT_LIBC_UCLIBC_LNXTHRD='${CT_LIBC_UCLIBC_LNXTHRD}'"

             ;;

     esac

     # Always build the libpthread_db

     cat <<-ENDSED

 		s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/

 		ENDSED

     # Force on debug options if asked for

     case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in

       0)

         cat <<-ENDSED

 			s/^DODEBUG=y/# DODEBUG is not set/

 			s/^DODEBUG_PT=y/# DODEBUG_PT is not set/

 			s/^DOASSERTS=y/# DOASSERTS is not set/

 			s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/

 			s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/

 			s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/

 			ENDSED

         ;;

       1)

         cat <<-ENDSED

 			s/^# DODEBUG is not set.*/DODEBUG=y/

 			s/^DODEBUG_PT=y/# DODEBUG_PT is not set/

 			s/^DOASSERTS=y/# DOASSERTS is not set/

 			s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/

 			s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/

 			s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/

 			ENDSED

         ;;

       2)

         cat <<-ENDSED

 			s/^# DODEBUG is not set.*/DODEBUG=y/

 			s/^# DODEBUG_PT is not set.*/DODEBUG_PT=y/

 			s/^# DOASSERTS is not set.*/DOASSERTS=y/

 			s/^# SUPPORT_LD_DEBUG is not set.*/SUPPORT_LD_DEBUG=y/

 			s/^# SUPPORT_LD_DEBUG_EARLY is not set.*/SUPPORT_LD_DEBUG_EARLY=y/

 			s/^# UCLIBC_MALLOC_DEBUGGING is not set/UCLIBC_MALLOC_DEBUGGING=y/

 			ENDSED

         ;;

     esac

     # And now, this is the end

     ) >>"${munge_file}"

     sed -r -f "${munge_file}" "${src_config_file}" >"${dst_config_file}"

 }