crosstool-ng: scripts/build/libc/uClibc.sh@fd4bf138f08f

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

    77     CT_DoLog EXTRA "Building headers"

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

    80     CT_DoLog EXTRA "Installing headers"

    81     CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" install_dev

    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 "" |CT_DoExecLog ALL               \

   114                  make CROSS=${CT_TARGET}-       \

   115                  PREFIX="${CT_SYSROOT_DIR}/"    \

   116                  oldconfig

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

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

   120     CT_DoLog EXTRA "Building C library"

   121     CT_DoExecLog ALL                    \

   122     make CROSS=${CT_TARGET}-            \

   123          PREFIX="${CT_SYSROOT_DIR}/"    \

   124          STRIPTOOL=true                 \

   125          ${CT_LIBC_UCLIBC_VERBOSITY}    \

   126          all

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

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

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

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

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

   133     # Note: PARALLELMFLAGS is not usefull for installation.

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

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

   136     CT_DoLog EXTRA "Installing C library"

   137     CT_DoExecLog ALL                    \

   138     make CROSS=${CT_TARGET}-            \

   139          PREFIX="${CT_SYSROOT_DIR}/"    \

   140          STRIPTOOL=true                 \

   141          ${CT_LIBC_UCLIBC_VERBOSITY}    \

   142          install

   144     CT_EndStep

   145 }

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

   148 do_libc_finish() {

   149     :

   150 }

   152 # Initialises the .config file to sensible values

   153 # $1: original file

   154 # $2: munged file

   155 mungeuClibcConfig() {

   156     src_config_file="$1"

   157     dst_config_file="$2"

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

   160     # Start with a fresh file

   161     rm -f "${munge_file}"

   162     touch "${munge_file}"

   164     # Hack our target in the config file.

   165     # Also remove stripping: its the responsibility of the

   166     # firmware builder to strip or not.

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

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

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

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

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

   172 ENDSED

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

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

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

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

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

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

   180 ENDSED

   181     else

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

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

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

   185 ENDSED

   186     fi

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

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

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

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

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

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

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

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

   196 ENDSED

   197         ;;

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

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

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

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

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

   203 ENDSED

   204         ;;

   205     esac

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

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

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

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

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

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

   213 ENDSED

   214             ;;

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

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

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

   218 ENDSED

   219             ;;

   220     esac

   222     # Change paths to work with crosstool-NG

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

   239 ENDSED

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

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

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

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

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

   246 ENDSED

   247         else

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

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

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

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

   252 ENDSED

   253         fi

   254     fi

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

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

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

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

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

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

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

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

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

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

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

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

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

   269 #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/

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

   271 ENDSED

   272     fi

   274     # Always build the libpthread_db

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

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

   277 ENDSED

   279     # Force on debug options if asked for

   280     case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in

   281       0)

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

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

   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       1)

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

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

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

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

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

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

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

   299 ENDSED

   300         ;;

   301       2)

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

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

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

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

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

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

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

   309 ENDSED

   310         ;;

   311     esac

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

   313 }

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Tue Sep 23 14:48:10 2008 +0000 (2008-09-23)
changeset 872	fd4bf138f08f
child 1027	ae53f827dce6
permissions	-rw-r--r--