crosstool-ng: scripts/build/libc/uClibc.sh@4b7ed9da5a21

     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 "${CT_LIBC_FILE}" ${libc_src}

    14     # uClibc locales

    15     [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && CT_GetFile "uClibc-locale-030818" ${libc_src} || true

    17     return 0

    18 }

    20 # Extract uClibc

    21 do_libc_extract() {

    22     CT_ExtractAndPatch "${CT_LIBC_FILE}"

    23     # uClibc locales

    24     [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && CT_ExtractAndPatch "uClibc-locale-030818" || true

    26     return 0

    27 }

    29 # Check that uClibc has been previously configured

    30 do_libc_check_config() {

    31     CT_DoStep INFO "Checking C library configuration"

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

    35     if egrep '^KERNEL_SOURCE=' "${CT_LIBC_UCLIBC_CONFIG_FILE}" >/dev/null 2>&1; then

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

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

    38     fi

    40     CT_DoLog EXTRA "Munging uClibc configuration"

    41     mungeuClibcConfig "${CT_LIBC_UCLIBC_CONFIG_FILE}" "${CT_BUILD_DIR}/uClibc.config"

    43     CT_EndStep

    44 }

    46 # This functions installs uClibc's headers

    47 do_libc_headers() {

    48     CT_DoStep INFO "Installing C library headers"

    50     mkdir -p "${CT_BUILD_DIR}/build-libc-headers"

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

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

    54     CT_DoLog EXTRA "Copying sources to build dir"

    55     { cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -

    57     # Retrieve the config file

    58     cp "${CT_BUILD_DIR}/uClibc.config" .config

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

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

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

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

    64     CT_DoLog EXTRA "Applying configuration"

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

    67     CT_DoLog EXTRA "Building headers"

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

    70     CT_DoLog EXTRA "Installing headers"

    71     CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" install_headers

    73     CT_EndStep

    74 }

    76 # Build and install start files

    77 do_libc_start_files() {

    78     :

    79 }

    81 # This function build and install the full uClibc

    82 do_libc() {

    83     CT_DoStep INFO "Installing C library"

    85     mkdir -p "${CT_BUILD_DIR}/build-libc"

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

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

    89     CT_DoLog EXTRA "Copying sources to build dir"

    90     { cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -

    92     # Retrieve the config file

    93     cp "${CT_BUILD_DIR}/uClibc.config" .config

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

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

    97     # only give the correct name for them.

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

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

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

   101     # use LIBC_EXTRA_CFLAGS here.

   102     CT_DoLog EXTRA "Applying configuration"

   103     CT_DoYes "" |CT_DoExecLog ALL               \

   104                  make CROSS=${CT_TARGET}-       \

   105                  PREFIX="${CT_SYSROOT_DIR}/"    \

   106                  oldconfig

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

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

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

   111     CT_DoLog EXTRA "Building C library"

   112     CT_DoExecLog ALL                                    \

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

   114          CROSS=${CT_TARGET}-                            \

   115          PREFIX="${CT_SYSROOT_DIR}/"                    \

   116          STRIPTOOL=true                                 \

   117          ${CT_LIBC_UCLIBC_VERBOSITY}                    \

   118          all

   120     # YEM-FIXME: we want to install libraries in $SYSROOT/lib, but we don't want

   121     # to install headers in $SYSROOT/include, thus making only install_runtime.

   122     # Plus, the headers were previously installed earlier with install_headers,

   123     # so all should be well. Unfortunately, the install_headers target does not

   124     # install crti.o and consorts... :-( So reverting to target 'install'.

   125     # Note: PARALLELMFLAGS is not usefull for installation.

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

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

   128     CT_DoLog EXTRA "Installing C library"

   129     CT_DoExecLog ALL                    \

   130     make CROSS=${CT_TARGET}-            \

   131          PREFIX="${CT_SYSROOT_DIR}/"    \

   132          STRIPTOOL=true                 \

   133          ${CT_LIBC_UCLIBC_VERBOSITY}    \

   134          install

   136     CT_EndStep

   137 }

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

   140 do_libc_finish() {

   141     # Build and install host-side ldd

   142     CT_DoStep INFO "Finishing C library"

   144     mkdir -p "${CT_BUILD_DIR}/build-libc-finish"

   145     cd "${CT_BUILD_DIR}/build-libc-finish"

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

   148     CT_DoLog EXTRA "Copying sources to build dir"

   149     { cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -

   151     # Retrieve the config file

   152     cp "${CT_BUILD_DIR}/uClibc.config" .config

   154     CT_DoLog EXTRA "Applying configuration"

   155     CT_DoYes "" |CT_DoExecLog ALL               \

   156                  make CROSS=${CT_TARGET}-       \

   157                  PREFIX="${CT_SYSROOT_DIR}/"    \

   158                  oldconfig

   160     CT_DoLog EXTRA "Installing C library host utils"

   161     CT_DoExecLog ALL                    \

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

   163          ${CT_LIBC_UCLIBC_VERBOSITY}    \

   164          -C utils hostutils

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

   167     CT_EndStep

   168 }

   170 # Initialises the .config file to sensible values

   171 # $1: original file

   172 # $2: munged file

   173 mungeuClibcConfig() {

   174     src_config_file="$1"

   175     dst_config_file="$2"

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

   178     # Start with a fresh file

   179     rm -f "${munge_file}"

   180     touch "${munge_file}"

   182     # Hack our target in the config file.

   183     # Also remove stripping: its the responsibility of the

   184     # firmware builder to strip or not.

   185     cat >>"${munge_file}" <<-ENDSED

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

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

   188 s/^TARGET_ARCH=".*"/TARGET_ARCH="${CT_KERNEL_ARCH}"/

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

   190 ENDSED

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

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

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

   195         cat >>"${munge_file}" <<-ENDSED

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

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

   198 ENDSED

   199     else

   200         cat >>"${munge_file}" <<-ENDSED

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

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

   203 ENDSED

   204     fi

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

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

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

   209         y,) cat >>"${munge_file}" <<-ENDSED

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

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

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

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

   214 ENDSED

   215         ;;

   216         ,y) cat >>"${munge_file}" <<-ENDSED

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

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

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

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

   221 ENDSED

   222         ;;

   223     esac

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

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

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

   228         y,) cat >>"${munge_file}" <<-ENDSED

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

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

   231 ENDSED

   232             ;;

   233         ,y) cat >>"${munge_file}" <<-ENDSED

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

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

   236 ENDSED

   237             ;;

   238     esac

   240     # Change paths to work with crosstool-NG

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

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

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

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

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

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

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

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

   249     # newer versions use KERNEL_HEADERS (which is right). See:

   250     cat >>"${munge_file}" <<-ENDSED

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

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

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

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

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

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

   257 ENDSED

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

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

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

   262             cat >>"${munge_file}" <<-ENDSED

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

   264 ENDSED

   265         else

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

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

   268             cat >> "${munge_file}" <<-ENDSED

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

   270 ENDSED

   271         fi

   272     fi

   274     # Locales support

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

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

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

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

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

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

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

   282        cat >>"${munge_file}" <<-ENDSED

   283 s/^# UCLIBC_HAS_LOCALE is not set/UCLIBC_HAS_LOCALE=y\\nUCLIBC_PREGENERATED_LOCALE_DATA=y\\n\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\n\\# UCLIBC_HAS_XLOCALE is not

   284 ENDSED

   285     fi

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

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

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

   290         cat >>"${munge_file}" <<-ENDSED

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

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

   293 # Add these three lines when doing C++?

   294 s/^# UCLIBC_HAS_WCHAR is not set/UCLIBC_HAS_WCHAR=y/

   295 #s/^# UCLIBC_HAS_LOCALE is not set/UCLIBC_HAS_LOCALE=y\\nUCLIBC_PREGENERATED_LOCALE_DATA=y\\n\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\n\\# UCLIBC_HAS_XLOCALE is not set/

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

   297 ENDSED

   298     fi

   300     # Always build the libpthread_db

   301     cat >>"${munge_file}" <<-ENDSED

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

   303 ENDSED

   305     # Force on debug options if asked for

   306     case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in

   307       0)

   308         cat >>"${munge_file}" <<-ENDSED

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

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

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

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

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

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

   315 ENDSED

   316         ;;

   317       1)

   318         cat >>"${munge_file}" <<-ENDSED

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

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

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

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

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

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

   325 ENDSED

   326         ;;

   327       2)

   328         cat >>"${munge_file}" <<-ENDSED

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

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

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

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

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

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

   335 ENDSED

   336         ;;

   337     esac

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

   339 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Jan 04 14:38:41 2009 +0000 (2009-01-04)
changeset 1121	4b7ed9da5a21
parent 1112	c72aecd1a9ef
child 1123	8c5881324a79
permissions	-rw-r--r--