scripts/crosstool.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jul 17 21:41:39 2007 +0000 (2007-07-17)
changeset 275 91c48f27338c
parent 274 71093c57780d
child 290 37e0b2562753
permissions -rwxr-xr-x
When isntalling aliases, send symlinks creation to CT_DEBUG log level.
     1 #!/bin/bash
     2 # Copyright 2007 Yann E. MORIN
     3 # Licensed under the GPL v2. See COPYING in the root of this package.
     4 
     5 # This is the main entry point to crosstool
     6 # This will:
     7 #   - download, extract and patch the toolchain components
     8 #   - build and install each components in turn
     9 #   - and eventually test the resulting toolchain
    10 
    11 # What this file does is prepare the environment, based upon the user-choosen
    12 # options. It also checks the existing environment for un-friendly variables,
    13 # and builds the tools.
    14 
    15 # Parse the common functions
    16 . "${CT_LIB_DIR}/scripts/functions"
    17 
    18 CT_STAR_DATE=`CT_DoDate +%s%N`
    19 CT_STAR_DATE_HUMAN=`CT_DoDate +%Y%m%d.%H%M%S`
    20 
    21 # Are we configured? We'll need that later...
    22 CT_TestOrAbort "Configuration file not found. Please create one." -f "${CT_TOP_DIR}/.config"
    23 
    24 # Parse the configuration file
    25 # It has some info about the logging facility, so include it early
    26 . "${CT_TOP_DIR}/.config"
    27 
    28 # renice oursleves
    29 renice ${CT_NICE} $$ |CT_DoLog DEBUG
    30 
    31 # Yes! We can do full logging from now on!
    32 CT_DoLog INFO "Build started ${CT_STAR_DATE_HUMAN}"
    33 
    34 CT_DoStep DEBUG "Dumping crosstool-NG configuration"
    35 cat "${CT_TOP_DIR}/.config" |egrep '^(# |)CT_' |CT_DoLog DEBUG
    36 CT_EndStep
    37 
    38 # Some sanity checks in the environment and needed tools
    39 CT_DoLog INFO "Checking environment sanity"
    40 
    41 # Enable known ordering of files in directory listings:
    42 CT_Test "crosstool-NG might not work as expected with LANG=\"${LANG}\"" -n "${LANG}"
    43 case "${LC_COLLATE},${LC_ALL}" in
    44   # These four combinations are known to sort files in the correct order:
    45   fr_FR*,)  ;;
    46   en_US*,)  ;;
    47   *,fr_FR*) ;;
    48   *,en_US*) ;;
    49   # Anything else is destined to be borked if not gracefuly handled:
    50   *) CT_DoLog WARN "Either LC_COLLATE=\"${LC_COLLATE}\" or LC_ALL=\"${LC_ALL}\" is not supported."
    51      export LC_ALL=`locale -a |egrep "^(fr_FR|en_US)" |head -n 1`
    52      CT_TestOrAbort "Neither en_US* nor fr_FR* locales found on your system." -n "${LC_ALL}"
    53      CT_DoLog WARN "Forcing to known working LC_ALL=\"${LC_ALL}\"."
    54      ;;
    55 esac
    56 
    57 # Other environment sanity checks
    58 CT_TestAndAbort "Don't set LD_LIBRARY_PATH. It screws up the build." -n "${LD_LIBRARY_PATH}"
    59 CT_TestAndAbort "Don't set CFLAGS. It screws up the build." -n "${CFLAGS}"
    60 CT_TestAndAbort "Don't set CXXFLAGS. It screws up the build." -n "${CXXFLAGS}"
    61 CT_Test "GREP_OPTIONS screws up the build. Resetting." -n "${GREP_OPTIONS}"
    62 GREP_OPTIONS=
    63 CT_HasOrAbort awk
    64 CT_HasOrAbort sed
    65 CT_HasOrAbort bison
    66 CT_HasOrAbort flex
    67 CT_HasOrAbort lynx
    68 
    69 CT_DoLog INFO "Building environment variables"
    70 
    71 # Target triplet: CT_TARGET needs a little love:
    72 CT_DoBuildTargetTriplet
    73 
    74 # Kludge: If any of the configured options needs CT_TARGET,
    75 # then rescan the options file now:
    76 . "${CT_TOP_DIR}/.config"
    77 
    78 # Now, build up the variables from the user-configured options.
    79 CT_KERNEL_FILE="${CT_KERNEL}-${CT_KERNEL_VERSION}"
    80 CT_BINUTILS_FILE="binutils-${CT_BINUTILS_VERSION}"
    81 if [ "${CT_CC_USE_CORE}" != "y" ]; then
    82     CT_CC_CORE="${CT_CC}"
    83     CT_CC_CORE_VERSION="${CT_CC_VERSION}"
    84     CT_CC_CORE_EXTRA_CONFIG="${CT_CC_EXTRA_CONFIG}"
    85 fi
    86 CT_CC_CORE_FILE="${CT_CC_CORE}-${CT_CC_CORE_VERSION}"
    87 CT_CC_FILE="${CT_CC}-${CT_CC_VERSION}"
    88 CT_LIBC_FILE="${CT_LIBC}-${CT_LIBC_VERSION}"
    89 CT_LIBFLOAT_FILE="libfloat-${CT_LIBFLOAT_VERSION}"
    90 
    91 # Where will we work?
    92 CT_TARBALLS_DIR="${CT_TOP_DIR}/targets/tarballs"
    93 CT_SRC_DIR="${CT_TOP_DIR}/targets/src"
    94 CT_BUILD_DIR="${CT_TOP_DIR}/targets/${CT_TARGET}/build"
    95 CT_DEBUG_INSTALL_DIR="${CT_INSTALL_DIR}/${CT_TARGET}/debug-root"
    96 # Note: we'll always install the core compiler in its own directory, so as to
    97 # not mix the two builds: core and final. Anyway, its generic, wether we use
    98 # a different compiler as core, or not.
    99 CT_CC_CORE_STATIC_PREFIX_DIR="${CT_BUILD_DIR}/${CT_CC}-core-static"
   100 CT_CC_CORE_SHARED_PREFIX_DIR="${CT_BUILD_DIR}/${CT_CC}-core-shared"
   101 CT_STATE_DIR="${CT_TOP_DIR}/targets/${CT_TARGET}/state"
   102 
   103 # We must ensure that we can restart if asked for!
   104 if [ -n "${CT_RESTART}" -a ! -d "${CT_STATE_DIR}"  ]; then
   105     CT_DoLog ERROR "You asked to restart a non-restartable build"
   106     CT_DoLog ERROR "This happened because you didn't set CT_DEBUG_CT_SAVE_STEPS"
   107     CT_DoLog ERROR "in the config options for the previous build, or the state"
   108     CT_DoLog ERROR "directoy for the previous build was deleted."
   109     CT_Abort "I will stop here to avoid any carnage"
   110 fi
   111 
   112 # Make all path absolute, it so much easier!
   113 CT_LOCAL_TARBALLS_DIR="`CT_MakeAbsolutePath \"${CT_LOCAL_TARBALLS_DIR}\"`"
   114 
   115 # Some more sanity checks now that we have all paths set up
   116 case "${CT_TARBALLS_DIR},${CT_SRC_DIR},${CT_BUILD_DIR},${CT_PREFIX_DIR},${CT_INSTALL_DIR}" in
   117     *" "*) CT_Abort "Don't use spaces in paths, it breaks things.";;
   118 esac
   119 
   120 # Check now if we can write to the destination directory:
   121 if [ -d "${CT_INSTALL_DIR}" ]; then
   122     CT_TestAndAbort "Destination directory \"${CT_INSTALL_DIR}\" is not removable" ! -w `dirname "${CT_INSTALL_DIR}"`
   123 fi
   124 
   125 # Good, now grab a bit of informations on the system we're being run on,
   126 # just in case something goes awok, and it's not our fault:
   127 CT_SYS_USER="`id -un`"
   128 CT_SYS_HOSTNAME=`hostname -f 2>/dev/null || true`
   129 # Hmmm. Some non-DHCP-enabled machines do not have an FQDN... Fall back to node name.
   130 CT_SYS_HOSTNAME="${CT_SYS_HOSTNAME:-`uname -n`}"
   131 CT_SYS_KERNEL=`uname -s`
   132 CT_SYS_REVISION=`uname -r`
   133 # MacOS X lacks '-o' :
   134 CT_SYS_OS=`uname -o || echo "Unknown (maybe MacOS-X)"`
   135 CT_SYS_MACHINE=`uname -m`
   136 CT_SYS_PROCESSOR=`uname -p`
   137 CT_SYS_GCC=`gcc -dumpversion`
   138 CT_SYS_TARGET=`CT_DoConfigGuess`
   139 CT_TOOLCHAIN_ID="crosstool-${CT_VERSION} build ${CT_STAR_DATE_HUMAN} by ${CT_SYS_USER}@${CT_SYS_HOSTNAME}"
   140 
   141 CT_DoLog EXTRA "Preparing working directories"
   142 
   143 # Ah! The build directory shall be eradicated, even if we restart!
   144 if [ -d "${CT_BUILD_DIR}" ]; then
   145     mv "${CT_BUILD_DIR}" "${CT_BUILD_DIR}.$$"
   146     chmod -R u+w "${CT_BUILD_DIR}.$$"
   147     nohup rm -rf "${CT_BUILD_DIR}.$$" >/dev/null 2>&1 &
   148 fi
   149 
   150 # Don't eradicate directories if we need to restart
   151 if [ -z "${CT_RESTART}" ]; then
   152     # Get rid of pre-existing installed toolchain and previous build directories.
   153     # We need to do that _before_ we can safely log, because the log file will
   154     # most probably be in the toolchain directory.
   155     if [ "${CT_FORCE_DOWNLOAD}" = "y" -a -d "${CT_TARBALLS_DIR}" ]; then
   156         mv "${CT_TARBALLS_DIR}" "${CT_TARBALLS_DIR}.$$"
   157         chmod -R u+w "${CT_TARBALLS_DIR}.$$"
   158         nohup rm -rf "${CT_TARBALLS_DIR}.$$" >/dev/null 2>&1 &
   159     fi
   160     if [ "${CT_FORCE_EXTRACT}" = "y" -a -d "${CT_SRC_DIR}" ]; then
   161         mv "${CT_SRC_DIR}" "${CT_SRC_DIR}.$$"
   162         chmod -R u+w "${CT_SRC_DIR}.$$"
   163         nohup rm -rf "${CT_SRC_DIR}.$$" >/dev/null 2>&1 &
   164     fi
   165     if [ -d "${CT_INSTALL_DIR}" ]; then
   166         mv "${CT_INSTALL_DIR}" "${CT_INSTALL_DIR}.$$"
   167         chmod -R u+w "${CT_INSTALL_DIR}.$$"
   168         nohup rm -rf "${CT_INSTALL_DIR}.$$" >/dev/null 2>&1 &
   169     fi
   170     if [ -d "${CT_DEBUG_INSTALL_DIR}" ]; then
   171         mv "${CT_DEBUG_INSTALL_DIR}" "${CT_DEBUG_INSTALL_DIR}.$$"
   172         chmod -R u+w "${CT_DEBUG_INSTALL_DIR}.$$"
   173         nohup rm -rf "${CT_DEBUG_INSTALL_DIR}.$$" >/dev/null 2>&1 &
   174     fi
   175     # In case we start anew, get rid of the previously saved state directory
   176     if [ -d "${CT_STATE_DIR}" ]; then
   177         mv "${CT_STATE_DIR}" "${CT_STATE_DIR}.$$"
   178         chmod -R u+w "${CT_STATE_DIR}.$$"
   179         nohup rm -rf "${CT_STATE_DIR}.$$" >/dev/null 2>&1 &
   180     fi
   181 fi
   182 
   183 # Create the directories we'll use, even if restarting: it does no harm to
   184 # create already existent directories, and CT_BUILD_DIR needs to be created
   185 # anyway
   186 mkdir -p "${CT_TARBALLS_DIR}"
   187 mkdir -p "${CT_SRC_DIR}"
   188 mkdir -p "${CT_BUILD_DIR}"
   189 mkdir -p "${CT_INSTALL_DIR}"
   190 mkdir -p "${CT_PREFIX_DIR}"
   191 mkdir -p "${CT_DEBUG_INSTALL_DIR}"
   192 mkdir -p "${CT_CC_CORE_STATIC_PREFIX_DIR}"
   193 mkdir -p "${CT_CC_CORE_SHARED_PREFIX_DIR}"
   194 mkdir -p "${CT_STATE_DIR}"
   195 
   196 # Kludge: CT_INSTALL_DIR and CT_PREFIX_DIR might have grown read-only if
   197 # the previous build was successfull. To be able to move the logfile there,
   198 # switch them back to read/write
   199 chmod -R u+w "${CT_INSTALL_DIR}" "${CT_PREFIX_DIR}"
   200 
   201 # Redirect log to the actual log file now we can
   202 # It's quite understandable that the log file will be installed in the install
   203 # directory, so we must first ensure it exists and is writeable (above) before
   204 # we can log there
   205 exec >/dev/null
   206 case "${CT_LOG_TO_FILE}" in
   207     y)  CT_LOG_FILE="${CT_PREFIX_DIR}/build.log"
   208         cat "${tmp_log_file}" >>"${CT_LOG_FILE}"
   209         rm -f "${tmp_log_file}"
   210         exec >>"${CT_LOG_FILE}"
   211         ;;
   212     *)  rm -f "${tmp_log_file}"
   213         ;;
   214 esac
   215 
   216 # Setting up the rest of the environment only is not restarting
   217 if [ -z "${CT_RESTART}" ]; then
   218     # Determine build system if not set by the user
   219     CT_Test "You did not specify the build system. That's OK, I can guess..." -z "${CT_BUILD}"
   220     CT_BUILD="${CT_BUILD:-`CT_DoConfigGuess`}"
   221     CT_BUILD=`CT_DoConfigSub "${CT_BUILD}"`
   222 
   223     # Arrange paths depending on wether we use sys-root or not.
   224     if [ "${CT_USE_SYSROOT}" = "y" ]; then
   225         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/sys-root"
   226         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/usr/include"
   227         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   228         CC_CORE_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   229         CC_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   230         LIBC_SYSROOT_ARG=""
   231         # glibc's prefix must be exactly /usr, else --with-sysroot'd gcc will get
   232         # confused when $sysroot/usr/include is not present.
   233         # Note: --prefix=/usr is magic!
   234         # See http://www.gnu.org/software/libc/FAQ.html#s-2.2
   235     else
   236         # plain old way. All libraries in prefix/target/lib
   237         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}"
   238         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/include"
   239         # hack!  Always use --with-sysroot for binutils.
   240         # binutils 2.14 and later obey it, older binutils ignore it.
   241         # Lets you build a working 32->64 bit cross gcc
   242         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   243         # Use --with-headers, else final gcc will define disable_glibc while
   244         # building libgcc, and you'll have no profiling
   245         CC_CORE_SYSROOT_ARG="--without-headers"
   246         CC_SYSROOT_ARG="--with-headers=${CT_HEADERS_DIR}"
   247         LIBC_SYSROOT_ARG="prefix="
   248     fi
   249 
   250     # Prepare the 'lib' directories in sysroot, else the ../lib64 hack used by
   251     # 32 -> 64 bit crosscompilers won't work, and build of final gcc will fail with
   252     #  "ld: cannot open crti.o: No such file or directory"
   253     mkdir -p "${CT_SYSROOT_DIR}/lib"
   254     mkdir -p "${CT_SYSROOT_DIR}/usr/lib"
   255 
   256     # Canadian-cross are really picky on the way they are built. Tweak the values.
   257     CT_UNIQ_BUILD=`echo "${CT_BUILD}" |sed -r -e 's/-/-build_/'`
   258     if [ "${CT_CANADIAN}" = "y" ]; then
   259         # Arrange so that gcc never, ever think that build system == host system
   260         CT_CANADIAN_OPT="--build=${CT_UNIQ_BUILD}"
   261         # We shall have a compiler for this target!
   262         # Do test here...
   263     else
   264         CT_HOST="${CT_BUILD}"
   265         CT_CANADIAN_OPT="--build=${CT_BUILD}"
   266         # Add the target toolchain in the path so that we can build the C library
   267         # Carefully add paths in the order we want them:
   268         #  - first try in ${CT_PREFIX_DIR}/bin
   269         #  - then try in ${CT_CC_CORE_SHARED_PREFIX_DIR}/bin
   270         #  - then try in ${CT_CC_CORE_STATIC_PREFIX_DIR}/bin
   271         #  - fall back to searching user's PATH
   272         export PATH="${CT_PREFIX_DIR}/bin:${CT_CC_CORE_SHARED_PREFIX_DIR}/bin:${CT_CC_CORE_STATIC_PREFIX_DIR}/bin:${PATH}"
   273     fi
   274 
   275     # Modify GCC_HOST to never be equal to $BUILD or $TARGET
   276     # This strange operation causes gcc to always generate a cross-compiler
   277     # even if the build machine is the same kind as the host.
   278     # This is why CC has to be set when doing a canadian cross; you can't find a
   279     # host compiler by appending -gcc to our whacky $GCC_HOST
   280     # Kludge: it is reported that the above causes canadian crosses with cygwin
   281     # hosts to fail, so avoid it just in that one case.  It would be cleaner to
   282     # just move this into the non-canadian case above, but I'm afraid that might
   283     # cause some configure script somewhere to decide that since build==host, they
   284     # could run host binaries.
   285     # (Copied almost as-is from original crosstool):
   286     case "${CT_KERNEL},${CT_CANADIAN}" in
   287         cygwin,y) ;;
   288         *,y)      CT_HOST="`echo \"${CT_HOST}\" |sed -r -e 's/-/-host_/;'`";;
   289     esac
   290 
   291     # Ah! Recent versions of binutils need some of the build and/or host system
   292     # (read CT_BUILD and CT_HOST) tools to be accessible (ar is but an example).
   293     # Do that:
   294     CT_DoLog DEBUG "Making build system tools available"
   295     mkdir -p "${CT_PREFIX_DIR}/bin"
   296     for tool in ar as dlltool gcc g++ gnatbind gnatmake ld nm ranlib strip windres objcopy objdump; do
   297         tmp=`CT_Which ${tool}`
   298         if [ -n "${tmp}" ]; then
   299             ln -sfv "${tmp}" "${CT_PREFIX_DIR}/bin/${CT_BUILD}-${tool}"
   300             ln -sfv "${tmp}" "${CT_PREFIX_DIR}/bin/${CT_UNIQ_BUILD}-${tool}"
   301             ln -sfv "${tmp}" "${CT_PREFIX_DIR}/bin/${CT_HOST}-${tool}"
   302         fi |CT_DoLog DEBUG
   303     done
   304 
   305     # Ha. cygwin host have an .exe suffix (extension) for executables.
   306     [ "${CT_KERNEL}" = "cygwin" ] && EXEEXT=".exe" || EXEEXT=""
   307 
   308     # Transform the ARCH into a kernel-understandable ARCH
   309     case "${CT_ARCH}" in
   310         x86) CT_KERNEL_ARCH=i386;;
   311         ppc) CT_KERNEL_ARCH=powerpc;;
   312         *)   CT_KERNEL_ARCH="${CT_ARCH}";;
   313     esac
   314 
   315     # Build up the TARGET_CFLAGS from user-provided options
   316     # Override with user-specified CFLAGS
   317     [ -n "${CT_ARCH_CPU}" ]  && CT_TARGET_CFLAGS="-mcpu=${CT_ARCH_CPU} ${CT_TARGET_CFLAGS}"
   318     [ -n "${CT_ARCH_TUNE}" ] && CT_TARGET_CFLAGS="-mtune=${CT_ARCH_TUNE} ${CT_TARGET_CFLAGS}"
   319     [ -n "${CT_ARCH_ARCH}" ] && CT_TARGET_CFLAGS="-march=${CT_ARCH_ARCH} ${CT_TARGET_CFLAGS}"
   320     [ -n "${CT_ARCH_FPU}" ]  && CT_TARGET_CFLAGS="-mfpu=${CT_ARCH_FPU} ${CT_TARGET_CFLAGS}"
   321 
   322     # Help gcc
   323     CT_CFLAGS_FOR_HOST=
   324     [ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST="${CT_CFLAGS_FOR_HOST} -pipe"
   325 
   326     # And help make go faster
   327     PARALLELMFLAGS=
   328     [ ${CT_PARALLEL_JOBS} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -j${CT_PARALLEL_JOBS}"
   329     [ ${CT_LOAD} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -l${CT_LOAD}"
   330 
   331     CT_DoStep EXTRA "Dumping internal crosstool-NG configuration"
   332     CT_DoLog EXTRA "Building a toolchain for:"
   333     CT_DoLog EXTRA "  build  = ${CT_BUILD}"
   334     CT_DoLog EXTRA "  host   = ${CT_HOST}"
   335     CT_DoLog EXTRA "  target = ${CT_TARGET}"
   336     set |egrep '^CT_.+=' |sort |CT_DoLog DEBUG
   337     CT_EndStep
   338 fi
   339 
   340 # Include sub-scripts instead of calling them: that way, we do not have to
   341 # export any variable, nor re-parse the configuration and functions files.
   342 . "${CT_LIB_DIR}/scripts/build/kernel_${CT_KERNEL}.sh"
   343 . "${CT_LIB_DIR}/scripts/build/binutils.sh"
   344 . "${CT_LIB_DIR}/scripts/build/libfloat.sh"
   345 . "${CT_LIB_DIR}/scripts/build/libc_${CT_LIBC}.sh"
   346 . "${CT_LIB_DIR}/scripts/build/cc_core_${CT_CC_CORE}.sh"
   347 . "${CT_LIB_DIR}/scripts/build/cc_${CT_CC}.sh"
   348 . "${CT_LIB_DIR}/scripts/build/debug.sh"
   349 . "${CT_LIB_DIR}/scripts/build/tools.sh"
   350 
   351 if [ -z "${CT_RESTART}" ]; then
   352     CT_DoStep INFO "Retrieving needed toolchain components' tarballs"
   353     do_kernel_get
   354     do_binutils_get
   355     do_cc_core_get
   356     do_libfloat_get
   357     do_libc_get
   358     do_cc_get
   359     do_tools_get
   360     do_debug_get
   361     CT_EndStep
   362 
   363     if [ "${CT_ONLY_DOWNLOAD}" != "y" ]; then
   364         if [ "${CT_FORCE_EXTRACT}" = "y" ]; then
   365             mv "${CT_SRC_DIR}" "${CT_SRC_DIR}.$$"
   366             nohup rm -rf "${CT_SRC_DIR}.$$" >/dev/null 2>&1
   367         fi
   368         CT_DoStep INFO "Extracting and patching toolchain components"
   369         do_kernel_extract
   370         do_binutils_extract
   371         do_cc_core_extract
   372         do_libfloat_extract
   373         do_libc_extract
   374         do_cc_extract
   375         do_tools_extract
   376         do_debug_extract
   377         CT_EndStep
   378     fi
   379 fi
   380 
   381 # Now for the job by itself. Go have a coffee!
   382 if [ "${CT_ONLY_DOWNLOAD}" != "y" -a "${CT_ONLY_EXTRACT}" != "y" ]; then
   383     # Because of CT_RESTART, this becomes quite complex
   384     do_stop=0
   385     prev_step=
   386     [ -n "${CT_RESTART}" ] && do_it=0 || do_it=1
   387     for step in libc_check_config       \
   388                 kernel_check_config     \
   389                 kernel_headers          \
   390                 binutils                \
   391                 cc_core_pass_1          \
   392                 libc_headers            \
   393                 libc_start_files        \
   394                 cc_core_pass_2          \
   395                 libfloat                \
   396                 libc                    \
   397                 cc                      \
   398                 libc_finish             \
   399                 tools                   \
   400                 debug                   \
   401                 ; do
   402         if [ ${do_it} -eq 0 ]; then
   403             if [ "${CT_RESTART}" = "${step}" ]; then
   404                 CT_DoLoadState "${step}"
   405                 do_it=1
   406                 do_stop=0
   407             fi
   408         else
   409             CT_DoSaveState ${step}
   410             if [ ${do_stop} -eq 1 ]; then
   411                 CT_DoLog ERROR "Stopping just after step \"${prev_step}\", as requested."
   412                 exit 0
   413             fi
   414         fi
   415         if [ ${do_it} -eq 1 ]; then
   416             do_${step}
   417             if [ "${CT_STOP}" = "${step}" ]; then
   418                 do_stop=1
   419             fi
   420             if [ "${CTDEBUG_CT_PAUSE_STEPS}" = "y" ]; then
   421                 CT_DoPause "Step \"${step}\" finished"
   422             fi
   423         fi
   424         prev_step="${step}"
   425     done
   426 
   427     CT_DoLog DEBUG "Removing access to the build system tools"
   428     find "${CT_PREFIX_DIR}/bin" -name "${CT_BUILD}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
   429     find "${CT_PREFIX_DIR}/bin" -name "${CT_UNIQ_BUILD}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
   430     find "${CT_PREFIX_DIR}/bin" -name "${CT_HOST}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
   431 
   432     # Install the /populator/
   433     CT_DoLog EXTRA "Installing the populate helper"
   434     sed -r -e 's,@@CT_READELF@@,'"${CT_PREFIX_DIR}/bin/${CT_TARGET}-readelf"',g;'   \
   435            -e 's,@@CT_SYSROOT_DIR@@,'"${CT_SYSROOT_DIR}"',g;'                       \
   436            "${CT_LIB_DIR}/tools/populate.in" >"${CT_PREFIX_DIR}/bin/${CT_TARGET}-populate"
   437     chmod 755 "${CT_PREFIX_DIR}/bin/${CT_TARGET}-populate"
   438 
   439     # Create the aliases to the target tools
   440     if [ -n "${CT_TARGET_ALIAS}" ]; then
   441         CT_DoLog EXTRA "Creating symlinks from \"${CT_TARGET}-*\" to \"${CT_TARGET_ALIAS}-*\""
   442         CT_Pushd "${CT_PREFIX_DIR}/bin"
   443         for t in "${CT_TARGET}-"*; do
   444             _t="`echo \"$t\" |sed -r -e 's/^'\"${CT_TARGET}\"'-/'\"${CT_TARGET_ALIAS}\"'-/;'`"
   445             CT_DoLog DEBUG "Linking \"${_t}\" -> \"${t}\""
   446             ln -sv "${t}" "${_t}" 2>&1 |CT_DoLog DEBUG
   447         done
   448         CT_Popd
   449     fi
   450 
   451     # Remove the generated documentation files
   452     if [ "${CT_REMOVE_DOCS}" = "y" ]; then
   453     	CT_DoLog INFO "Removing installed documentation"
   454         rm -rf "${CT_PREFIX_DIR}/"{,usr/}{man,info}
   455         rm -rf "${CT_SYSROOT_DIR}/"{,usr/}{man,info}
   456         rm -rf "${CT_DEBUG_INSTALL_DIR}/"{,usr/}{man,info}
   457     fi
   458 fi
   459 
   460 CT_DoEnd INFO
   461 
   462 if [ "${CT_LOG_FILE_COMPRESS}" = y ]; then
   463     CT_DoLog EXTRA "Compressing log file"
   464     exec >/dev/null
   465     bzip2 -9 "${CT_LOG_FILE}"
   466 fi
   467 
   468 if [ "${CT_INSTALL_DIR_RO}" = "y" ]; then
   469     # OK, now we're done, set the toolchain read-only
   470     # Don't log, the log file may become read-only any moment...
   471     chmod -R a-w "${CT_INSTALL_DIR}" >/dev/null 2>&1
   472 fi
   473 
   474 trap - EXIT