crosstool-ng: scripts/build/libc/uClibc.sh@12853e4d2c52

     1 # This file declares functions to install the uClibc C library

     2 # Copyright 2007 Yann E. MORIN

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

     5 # Download uClibc

     6 do_libc_get() {

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

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

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

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

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

    12     # later...

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

    14     # uClibc locales

    15     if [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ]; then

    16         CT_GetFile "uClibc-locale-030818" ${libc_src}

    17     fi

    19     return 0

    20 }

    22 libc_uclibc_src_dir() {

    23     if [    -z "${CT_LIBC_V_snapshot}"      \

    24          -a -z "${CT_LIBC_V_specific_date}" \

    25        ]; then

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

    27     else

    28         echo "${CT_SRC_DIR}/uClibc"

    29     fi

    30 }

    32 # Extract uClibc

    33 do_libc_extract() {

    34     CT_Extract "uClibc-${CT_LIBC_VERSION}"

    35     # Don't patch snapshots

    36     if [    -z "${CT_LIBC_V_snapshot}"      \

    37          -a -z "${CT_LIBC_V_specific_date}" \

    38        ]; then

    39         CT_Patch "uClibc" "${CT_LIBC_VERSION}"

    40     fi

    42     # uClibc locales

    43     if [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ]; then

    44         CT_Pushd "$(libc_uclibc_src_dir)/extra/locale"

    45         CT_Extract nochdir "uClibc-locale-030818"

    46         CT_Patch nochdir "uClibc" "locale-030818"

    47         CT_Popd

    48     fi

    50     return 0

    51 }

    53 # Check that uClibc has been previously configured

    54 do_libc_check_config() {

    55     CT_DoStep INFO "Checking C library configuration"

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

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

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

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

    62     fi

    64     CT_DoLog EXTRA "Munging uClibc configuration"

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

    67     CT_EndStep

    68 }

    70 # This functions installs uClibc's headers

    71 do_libc_headers() {

    72     local install_rule

    74     CT_DoStep INFO "Installing C library headers"

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

    77     CT_DoLog EXTRA "Copying sources to build dir"

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

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

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

    82     # Retrieve the config file

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

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

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

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

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

    89     CT_DoLog EXTRA "Applying configuration"

    90     CT_DoYes "" |CT_DoExecLog ALL make CROSS= PREFIX="${CT_SYSROOT_DIR}/" oldconfig

    92     CT_DoLog EXTRA "Building headers"

    93     CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" headers

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

    96         install_rule=install_headers

    97     else

    98         install_rule=install_dev

    99     fi

   101     CT_DoLog EXTRA "Installing headers"

   102     CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" "${install_rule}"

   104     CT_EndStep

   105 }

   107 # Build and install start files

   108 do_libc_start_files() {

   109     :

   110 }

   112 # This function build and install the full uClibc

   113 do_libc() {

   114     CT_DoStep INFO "Installing C library"

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

   117     CT_DoLog EXTRA "Copying sources to build dir"

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

   119                             "${CT_BUILD_DIR}/build-libc"

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

   122     # Retrieve the config file

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

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

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

   127     # only give the correct name for them.

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

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

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

   131     # use LIBC_EXTRA_CFLAGS here.

   132     CT_DoLog EXTRA "Applying configuration"

   133     CT_DoYes "" |CT_DoExecLog ALL               \

   134                  make CROSS=${CT_TARGET}-       \

   135                  PREFIX="${CT_SYSROOT_DIR}/"    \

   136                  oldconfig

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

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

   140     # /Old/ versions can not build in //

   141     CT_DoLog EXTRA "Building C library"

   142     CT_DoExecLog ALL                                    \

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

   144          CROSS=${CT_TARGET}-                            \

   145          PREFIX="${CT_SYSROOT_DIR}/"                    \

   146          STRIPTOOL=true                                 \

   147          ${CT_LIBC_UCLIBC_VERBOSITY}                    \

   148          all

   150     # YEM-FIXME:

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

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

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

   154     #   static libs, but not the dynamic libs

   155     # - "make install_runtime" installs the dynamic libs only

   156     # - "make install" calls install_runtime and install_dev

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

   158     #

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

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

   161     #

   162     # Note: PARALLELMFLAGS is not usefull for installation.

   163     #

   164     CT_DoLog EXTRA "Installing C library"

   165     CT_DoExecLog ALL                    \

   166     make CROSS=${CT_TARGET}-            \

   167          PREFIX="${CT_SYSROOT_DIR}/"    \

   168          STRIPTOOL=true                 \

   169          ${CT_LIBC_UCLIBC_VERBOSITY}    \

   170          install

   172     if [ "${CT_LIBC_UCLIBC_BUILD_CROSS_LDD}" = "y" ]; then

   173         CT_DoLog EXTRA "Building C library cross-ldd"

   174         CT_DoExecLog ALL                    \

   175         make PREFIX="${CT_SYSROOT_DIR}/"    \

   176              ${CT_LIBC_UCLIBC_VERBOSITY}    \

   177              -C utils hostutils

   179         CT_DoLog EXTRA "Installing C library cross-ldd"

   180         CT_DoExecLog ALL install -m 0755 utils/ldd.host "${CT_PREFIX_DIR}/bin/${CT_TARGET}-ldd"

   181     fi

   183     CT_EndStep

   184 }

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

   187 do_libc_finish() {

   188     :

   189 }

   191 # Initialises the .config file to sensible values

   192 # $1: original file

   193 # $2: munged file

   194 mungeuClibcConfig() {

   195     src_config_file="$1"

   196     dst_config_file="$2"

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

   199     # Start with a fresh file

   200     rm -f "${munge_file}"

   201     touch "${munge_file}"

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

   204     (

   206     # Hack our target in the config file.

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

   208         x86:32)      arch=i386;;

   209         x86:64)      arch=x86_64;;

   210         sh:32)       arch="sh";;

   211         sh:64)       arch="sh64";;

   212         blackfin:32) arch="bfin";;

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

   214     esac

   215     # Also remove stripping: its the responsibility of the

   216     # firmware builder to strip or not.

   217     cat <<-ENDSED

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

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

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

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

   222 		ENDSED

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

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

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

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

   228             cat <<-ENDSED

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

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

   231 				ENDSED

   232         else

   233             cat <<-ENDSED

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

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

   236 				ENDSED

   237         fi

   238     fi

   240     # Accomodate for old and new uClibc versions, where the

   241     # way to select between big/little endian has changed

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

   243         y,) cat <<-ENDSED

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

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

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

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

   248 				ENDSED

   249         ;;

   250         ,y) cat <<-ENDSED

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

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

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

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

   255 				ENDSED

   256         ;;

   257     esac

   259     # Accomodate for old and new uClibc version, where the

   260     # way to select between hard/soft float has changed

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

   262         y,) cat <<-ENDSED

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

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

   265 				ENDSED

   266             ;;

   267         ,y) cat <<-ENDSED

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

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

   270 				ENDSED

   271             ;;

   272     esac

   274     # Change paths to work with crosstool-NG

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

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

   277     #  " so people may need to update their paths slightly

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

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

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

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

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

   283     # newer versions use KERNEL_HEADERS (which is right).

   284     cat <<-ENDSED

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

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

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

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

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

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

   291 		ENDSED

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

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

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

   296             cat <<-ENDSED

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

   298 				ENDSED

   299         else

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

   301             # CFLAGS. This a dirty hack, but yet needed

   302             cat <<-ENDSED

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

   304 				ENDSED

   305         fi

   306     fi

   308     # Locales support

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

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

   311     # assume the user has already made all the appropriate generation

   312     # arrangements.  Note that having the uClibc Makefile download the

   313     # pregenerated locales is not compatible with crosstool; besides,

   314     # crosstool downloads them as part of getandpatch.sh.

   315     if [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] ; then

   316         cat <<-ENDSED

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

   318 			UCLIBC_PREGENERATED_LOCALE_DATA=y\\

   319 			# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\

   320 			# UCLIBC_HAS_XLOCALE is not set/

   321 			ENDSED

   322     fi

   324     # WCHAR support

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

   326         cat <<-ENDSED

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

   328 			ENDSED

   329     else

   330         cat <<-ENDSED

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

   332 			ENDSED

   333     fi

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

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

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

   338         cat <<-ENDSED

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

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

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

   342 			ENDSED

   343     fi

   345     # Always build the libpthread_db

   346     cat <<-ENDSED

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

   348 		ENDSED

   350     # Force on debug options if asked for

   351     case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in

   352       0)

   353         cat <<-ENDSED

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

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

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

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

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

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

   360 			ENDSED

   361         ;;

   362       1)

   363         cat <<-ENDSED

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

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

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

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

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

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

   370 			ENDSED

   371         ;;

   372       2)

   373         cat <<-ENDSED

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

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

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

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

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

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

   380 			ENDSED

   381         ;;

   382     esac

   384     # And now, this is the end

   385     ) >>"${munge_file}"

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

   388 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sat Jul 03 00:17:54 2010 +0200 (2010-07-03)
branch	1.7
changeset 2010	12853e4d2c52
parent 1910	207ad430c254
permissions	-rw-r--r--