crosstool-ng: scripts/build/libc_uClibc.sh@8e58024f8e37

     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 do_print_filename() {

     6     [ "${CT_LIBC}" = "uClibc" ] || return 0

     7     echo "uClibc-${CT_LIBC_VERSION}"

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

9 }

    11 # Download uClibc

    12 do_libc_get() {

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

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

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

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

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

    18     # later...

    19     CT_GetFile "${CT_LIBC_FILE}" ${libc_src}

    20     # uClibc locales

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

    23     return 0

    24 }

    26 # Extract uClibc

    27 do_libc_extract() {

    28     CT_ExtractAndPatch "${CT_LIBC_FILE}"

    29     # uClibc locales

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

    32     return 0

    33 }

    35 # Check that uClibc has been previously configured

    36 do_libc_check_config() {

    37     CT_DoStep INFO "Checking C library configuration"

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

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

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

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

    44     fi

    46     CT_DoLog EXTRA "Munging uClibc configuration"

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

    49     CT_EndStep

    50 }

    52 # This functions installs uClibc's headers

    53 do_libc_headers() {

    54     # Only need to install bootstrap uClibc headers for gcc-3.0 and above?  Or maybe just gcc-3.3 and above?

    55     # See also http://gcc.gnu.org/PR8180, which complains about the need for this step.

    56     grep -q 'gcc-[34]' "${CT_SRC_DIR}/${CT_CC_FILE}/ChangeLog" 2>/dev/null || return 0

    58     CT_DoStep INFO "Installing C library headers"

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

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

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

    64     CT_DoLog EXTRA "Copying sources to build dir"

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

    67     # Retrieve the config file

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

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

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

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

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

    74     CT_DoLog EXTRA "Applying configuration"

    75     CT_DoYes "" |make CROSS= PREFIX="${CT_SYSROOT_DIR}/" oldconfig 2>&1 |CT_DoLog ALL

    77     CT_DoLog EXTRA "Building headers"

    78     make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" headers 2>&1 |CT_DoLog ALL

    80     CT_DoLog EXTRA "Installing headers"

    81     make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" install_dev 2>&1 |CT_DoLog ALL

    83     CT_EndStep

    84 }

    86 # Build and install start files

    87 do_libc_start_files() {

    88     :

    89 }

    91 # This function build and install the full uClibc

    92 do_libc() {

    93     CT_DoStep INFO "Installing C library"

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

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

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

    99     CT_DoLog EXTRA "Copying sources to build dir"

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

   102     # Retrieve the config file

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

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

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

   107     # only give the correct name for them.

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

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

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

   111     # use LIBC_EXTRA_CFLAGS here.

   112     CT_DoLog EXTRA "Applying configuration"

   113     CT_DoYes "" |make CROSS=${CT_TARGET}-           \

   114                       PREFIX="${CT_SYSROOT_DIR}/"   \

   115                       oldconfig                     2>&1 |CT_DoLog ALL

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

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

   119     CT_DoLog EXTRA "Building C library"

   120     make CROSS=${CT_TARGET}-            \

   121          PREFIX="${CT_SYSROOT_DIR}/"    \

   122          STRIPTOOL=true                 \

   123          ${CT_LIBC_UCLIBC_VERBOSITY}    \

   124          all                            2>&1 |CT_DoLog ALL

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

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

   128     # Plus, the headers were previously installed earlier with install_dev, so

   129     # all should be well. Unfortunately, the install_dev target does not install

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

   131     # Note: PARALLELMFLAGS is not usefull for installation.

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

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

   134     CT_DoLog EXTRA "Installing C library"

   135     make CROSS=${CT_TARGET}-            \

   136          PREFIX="${CT_SYSROOT_DIR}/"    \

   137          STRIPTOOL=true                 \

   138          ${CT_LIBC_UCLIBC_VERBOSITY}    \

   139          install                        2>&1 |CT_DoLog ALL

   141     CT_EndStep

   142 }

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

   145 do_libc_finish() {

   146     :

   147 }

   149 # Initialises the .config file to sensible values

   150 # $1: original file

   151 # $2: munged file

   152 mungeuClibcConfig() {

   153     src_config_file="$1"

   154     dst_config_file="$2"

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

   157     # Start with a fresh file

   158     rm -f "${munge_file}"

   159     touch "${munge_file}"

   161     # Hack our target in the config file.

   162     # Also remove stripping: its the responsibility of the

   163     # firmware builder to strip or not.

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

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

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

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

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

   169 ENDSED

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

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

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

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

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

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

   177 ENDSED

   178     else

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

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

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

   182 ENDSED

   183     fi

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

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

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

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

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

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

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

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

   193 ENDSED

   194         ;;

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

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

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

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

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

   200 ENDSED

   201         ;;

   202     esac

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

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

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

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

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

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

   210 ENDSED

   211             ;;

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

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

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

   215 ENDSED

   216             ;;

   217     esac

   219     # Change paths to work with crosstool-NG

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   236 ENDSED

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

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

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

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

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

   243 ENDSED

   244         else

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

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

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

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

   249 ENDSED

   250         fi

   251     fi

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

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

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

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

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

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

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

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

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

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

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

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

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

   266 #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/

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

   268 ENDSED

   269     fi

   271     # Always build the libpthread_db

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

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

   274 ENDSED

   276     # Force on debug options if asked for

   277     case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in

   278       0)

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

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

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

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

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

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

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

   286 ENDSED

   287         ;;

   288       1)

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

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

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

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

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

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

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

   296 ENDSED

   297         ;;

   298       2)

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

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

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

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

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

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

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

   306 ENDSED

   307         ;;

   308     esac

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

   310 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Jul 13 10:32:38 2008 +0000 (2008-07-13)
changeset 645	8e58024f8e37
parent 580	26f13900b099
child 661	74e8be702b1d
permissions	-rw-r--r--