crosstool-ng: scripts/build/libc_uClibc.sh@8bde4c6ea47a

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

    80     CT_DoLog EXTRA "Installing headers"

    81     make 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          all                            2>&1 |CT_DoLog ALL

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

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

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

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

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

   130     # Note: PARALLELMFLAGS is not usefull for installation.

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

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

   133     CT_DoLog EXTRA "Installing C library"

   134     make CROSS=${CT_TARGET}-            \

   135          PREFIX="${CT_SYSROOT_DIR}/"    \

   136          STRIPTOOL=true                 \

   137          install                        2>&1 |CT_DoLog ALL

   139     CT_EndStep

   140 }

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

   143 do_libc_finish() {

   144     :

   145 }

   147 # Initialises the .config file to sensible values

   148 # $1: original file

   149 # $2: munged file

   150 mungeuClibcConfig() {

   151     src_config_file="$1"

   152     dst_config_file="$2"

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

   155     echo -n >"${munge_file}"

   157     # Hack our target in the config file.

   158     # Also remove stripping: its the responsibility of the

   159     # firmware builder to strip or not.

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

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

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

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

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

   165 ENDSED

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

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

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

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

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

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

   173 ENDSED

   174     else

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

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

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

   178 ENDSED

   179     fi

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

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

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

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

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

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

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

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

   189 ENDSED

   190         ;;

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

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

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

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

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

   196 ENDSED

   197         ;;

   198     esac

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

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

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

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

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

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

   206 ENDSED

   207             ;;

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

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

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

   211 ENDSED

   212             ;;

   213     esac

   215     # Change paths to work with crosstool-NG

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

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

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

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

   220     quoted_headers_dir=`echo ${CT_HEADERS_DIR} | sed -r -e 's,/,\\\\/,g;'`

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

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

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

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

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

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

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

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

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

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

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

   232 ENDSED

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

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

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

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

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

   239 ENDSED

   240         else

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

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

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

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

   245 ENDSED

   246         fi

   247     fi

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

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

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

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

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

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

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

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

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

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

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

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

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

   262 #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/

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

   264 ENDSED

   265     fi

   267     # Force on debug options if asked for

   268     case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in

   269       0)

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

   271 s/^PTHREADS_DEBUG_SUPPORT=y/# PTHREADS_DEBUG_SUPPORT is not set/

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

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

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

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

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

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

   278 ENDSED

   279         ;;

   280       1)

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

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

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

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

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

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

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

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

   289 ENDSED

   290         ;;

   291       2)

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

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

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

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

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

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

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

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

   300 ENDSED

   301         ;;

   302     esac

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

   304 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Feb 17 22:08:06 2008 +0000 (2008-02-17)
changeset 431	8bde4c6ea47a
parent 378	c5691d002539
child 486	92f6149c4275
permissions	-rw-r--r--