scripts/crosstool.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Jun 16 22:23:53 2007 +0000 (2007-06-16)
changeset 165 a291bfa17715
parent 153 3a0c06094db0
child 174 75f3f975e2ad
permissions -rwxr-xr-x
scripts/functions is responsible for initiating the log file.
Users of the log facility are in charge to use, move, delete this log file, now.
     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 # CT_TOP_DIR is set by the makefile. If we don't have it, something's gone horribly wrong...
    16 if [ -z "${CT_TOP_DIR}" -o ! -d "${CT_TOP_DIR}" ]; then
    17     # We don't have the functions right now, because we don't have CT_TOP_DIR.
    18     # Do the print stuff by hand:
    19     echo "CT_TOP_DIR not set, or not a directory. Something's gone horribly wrong."
    20     echo "Please send a bug report (see README)"
    21     exit 1
    22 fi
    23 
    24 # Parse the common functions
    25 . "${CT_TOP_DIR}/scripts/functions"
    26 
    27 CT_STAR_DATE=`CT_DoDate +%s%N`
    28 CT_STAR_DATE_HUMAN=`CT_DoDate +%Y%m%d.%H%M%S`
    29 
    30 # Are we configured? We'll need that later...
    31 CT_TestOrAbort "Configuration file not found. Please create one." -f "${CT_TOP_DIR}/.config"
    32 
    33 # Parse the configuration file
    34 # It has some info about the logging facility, so include it early
    35 . "${CT_TOP_DIR}/.config"
    36 
    37 # renice oursleves
    38 renice ${CT_NICE} $$ |CT_DoLog DEBUG
    39 
    40 # Yes! We can do full logging from now on!
    41 CT_DoLog INFO "Build started ${CT_STAR_DATE_HUMAN}"
    42 
    43 CT_DoStep DEBUG "Dumping crosstool-NG configuration"
    44 cat ${CT_TOP_DIR}/.config |egrep '^(# |)CT_' |CT_DoLog DEBUG
    45 CT_EndStep
    46 
    47 # Some sanity checks in the environment and needed tools
    48 CT_DoLog INFO "Checking environment sanity"
    49 
    50 # Enable known ordering of files in directory listings:
    51 CT_Test "Crosstool-NG might not work as expected with LANG=\"${LANG}\"" -n "${LANG}"
    52 case "${LC_COLLATE},${LC_ALL}" in
    53   # These four combinations are known to sort files in the correct order:
    54   fr_FR*,)  ;;
    55   en_US*,)  ;;
    56   *,fr_FR*) ;;
    57   *,en_US*) ;;
    58   # Anything else is destined to be borked if not gracefuly handled:
    59   *) CT_DoLog WARN "Either LC_COLLATE=\"${LC_COLLATE}\" or LC_ALL=\"${LC_ALL}\" is not supported."
    60      export LC_ALL=`locale -a |egrep "^(fr_FR|en_US)" |head -n 1`
    61      CT_TestOrAbort "Neither en_US* nor fr_FR* locales found on your system." -n "${LC_ALL}"
    62      CT_DoLog WARN "Forcing to known working LC_ALL=\"${LC_ALL}\"."
    63      ;;
    64 esac
    65 
    66 # Other environment sanity checks
    67 CT_TestAndAbort "Don't set LD_LIBRARY_PATH. It screws up the build." -n "${LD_LIBRARY_PATH}"
    68 CT_TestAndAbort "Don't set CFLAGS. It screws up the build." -n "${CFLAGS}"
    69 CT_TestAndAbort "Don't set CXXFLAGS. It screws up the build." -n "${CXXFLAGS}"
    70 CT_Test "GREP_OPTIONS screws up the build. Resetting." -n "${GREP_OPTIONS}"
    71 GREP_OPTIONS=
    72 CT_HasOrAbort awk
    73 CT_HasOrAbort sed
    74 CT_HasOrAbort bison
    75 CT_HasOrAbort flex
    76 
    77 CT_DoLog INFO "Building environment variables"
    78 
    79 # Target triplet: CT_TARGET needs a little love:
    80 CT_DoBuildTargetTriplet
    81 
    82 # Kludge: If any of the configured options needs CT_TARGET,
    83 # then rescan the options file now:
    84 . "${CT_TOP_DIR}/.config"
    85 
    86 # Now, build up the variables from the user-configured options.
    87 CT_KERNEL_FILE="${CT_KERNEL}-${CT_KERNEL_VERSION}"
    88 CT_BINUTILS_FILE="binutils-${CT_BINUTILS_VERSION}"
    89 if [ "${CT_CC_USE_CORE}" != "y" ]; then
    90     CT_CC_CORE="${CT_CC}"
    91     CT_CC_CORE_VERSION="${CT_CC_VERSION}"
    92     CT_CC_CORE_EXTRA_CONFIG="${CT_CC_EXTRA_CONFIG}"
    93 fi
    94 CT_CC_CORE_FILE="${CT_CC_CORE}-${CT_CC_CORE_VERSION}"
    95 CT_CC_FILE="${CT_CC}-${CT_CC_VERSION}"
    96 CT_LIBC_FILE="${CT_LIBC}-${CT_LIBC_VERSION}"
    97 CT_LIBFLOAT_FILE="libfloat-${CT_LIBFLOAT_VERSION}"
    98 
    99 # Where will we work?
   100 CT_TARBALLS_DIR="${CT_TOP_DIR}/targets/tarballs"
   101 CT_SRC_DIR="${CT_TOP_DIR}/targets/src"
   102 CT_BUILD_DIR="${CT_TOP_DIR}/targets/${CT_TARGET}/build"
   103 CT_DEBUG_INSTALL_DIR="${CT_INSTALL_DIR}/${CT_TARGET}/debug-root"
   104 # Note: we'll always install the core compiler in its own directory, so as to
   105 # not mix the two builds: core and final. Anyway, its generic, wether we use
   106 # a different compiler as core, or not.
   107 CT_CC_CORE_STATIC_PREFIX_DIR="${CT_BUILD_DIR}/${CT_CC}-core-static"
   108 CT_CC_CORE_SHARED_PREFIX_DIR="${CT_BUILD_DIR}/${CT_CC}-core-shared"
   109 CT_STATE_DIR="${CT_TOP_DIR}/targets/${CT_TARGET}/state"
   110 
   111 # We must ensure that we can restart if asked for!
   112 if [ -n "${CT_RESTART}" -a ! -d "${CT_STATE_DIR}"  ]; then
   113     CT_DoLog ERROR "You asked to restart a non-restartable build"
   114     CT_DoLog ERROR "This happened because you didn't set CT_DEBUG_CT_SAVE_STEPS"
   115     CT_DoLog ERROR "in the config options for the previous build, or the state"
   116     CT_DoLog ERROR "directoy for the previous build was deleted."
   117     CT_Abort "I will stop here to avoid any carnage"
   118 fi
   119 
   120 # Make all path absolute, it so much easier!
   121 CT_LOCAL_TARBALLS_DIR="`CT_MakeAbsolutePath \"${CT_LOCAL_TARBALLS_DIR}\"`"
   122 
   123 # Some more sanity checks now that we have all paths set up
   124 case "${CT_TARBALLS_DIR},${CT_SRC_DIR},${CT_BUILD_DIR},${CT_PREFIX_DIR},${CT_INSTALL_DIR}" in
   125     *" "*) CT_Abort "Don't use spaces in paths, it breaks things.";;
   126 esac
   127 
   128 # Check now if we can write to the destination directory:
   129 if [ -d "${CT_INSTALL_DIR}" ]; then
   130     CT_TestAndAbort "Destination directory \"${CT_INSTALL_DIR}\" is not removable" ! -w `dirname "${CT_INSTALL_DIR}"`
   131 fi
   132 
   133 # Good, now grab a bit of informations on the system we're being run on,
   134 # just in case something goes awok, and it's not our fault:
   135 CT_SYS_USER="`id -un`"
   136 CT_SYS_HOSTNAME=`hostname -f 2>/dev/null || true`
   137 # Hmmm. Some non-DHCP-enabled machines do not have an FQDN... Fall back to node name.
   138 CT_SYS_HOSTNAME="${CT_SYS_HOSTNAME:-`uname -n`}"
   139 CT_SYS_KERNEL=`uname -s`
   140 CT_SYS_REVISION=`uname -r`
   141 # MacOS X lacks '-o' :
   142 CT_SYS_OS=`uname -o || echo "Unknown (maybe MacOS-X)"`
   143 CT_SYS_MACHINE=`uname -m`
   144 CT_SYS_PROCESSOR=`uname -p`
   145 CT_SYS_GCC=`gcc -dumpversion`
   146 CT_SYS_TARGET=`${CT_TOP_DIR}/tools/config.guess`
   147 CT_TOOLCHAIN_ID="crosstool-${CT_VERSION} build ${CT_STAR_DATE_HUMAN} by ${CT_SYS_USER}@${CT_SYS_HOSTNAME}"
   148 
   149 CT_DoLog EXTRA "Preparing working directories"
   150 
   151 # Ah! The build directory shall be eradicated, even if we restart!
   152 if [ -d "${CT_BUILD_DIR}" ]; then
   153     mv "${CT_BUILD_DIR}" "${CT_BUILD_DIR}.$$"
   154     chmod -R u+w "${CT_BUILD_DIR}.$$"
   155     nohup rm -rf "${CT_BUILD_DIR}.$$" >/dev/null 2>&1 &
   156 fi
   157 
   158 # Don't eradicate directories if we need to restart
   159 if [ -z "${CT_RESTART}" ]; then
   160     # Get rid of pre-existing installed toolchain and previous build directories.
   161     # We need to do that _before_ we can safely log, because the log file will
   162     # most probably be in the toolchain directory.
   163     if [ "${CT_FORCE_DOWNLOAD}" = "y" -a -d "${CT_TARBALLS_DIR}" ]; then
   164         mv "${CT_TARBALLS_DIR}" "${CT_TARBALLS_DIR}.$$"
   165         chmod -R u+w "${CT_TARBALLS_DIR}.$$"
   166         nohup rm -rf "${CT_TARBALLS_DIR}.$$" >/dev/null 2>&1 &
   167     fi
   168     if [ "${CT_FORCE_EXTRACT}" = "y" -a -d "${CT_SRC_DIR}" ]; then
   169         mv "${CT_SRC_DIR}" "${CT_SRC_DIR}.$$"
   170         chmod -R u+w "${CT_SRC_DIR}.$$"
   171         nohup rm -rf "${CT_SRC_DIR}.$$" >/dev/null 2>&1 &
   172     fi
   173     if [ -d "${CT_INSTALL_DIR}" ]; then
   174         mv "${CT_INSTALL_DIR}" "${CT_INSTALL_DIR}.$$"
   175         chmod -R u+w "${CT_INSTALL_DIR}.$$"
   176         nohup rm -rf "${CT_INSTALL_DIR}.$$" >/dev/null 2>&1 &
   177     fi
   178     if [ -d "${CT_DEBUG_INSTALL_DIR}" ]; then
   179         mv "${CT_DEBUG_INSTALL_DIR}" "${CT_DEBUG_INSTALL_DIR}.$$"
   180         chmod -R u+w "${CT_DEBUG_INSTALL_DIR}.$$"
   181         nohup rm -rf "${CT_DEBUG_INSTALL_DIR}.$$" >/dev/null 2>&1 &
   182     fi
   183     # In case we start anew, get rid of the previously saved state directory
   184     if [ -d "${CT_STATE_DIR}" ]; then
   185         mv "${CT_STATE_DIR}" "${CT_STATE_DIR}.$$"
   186         chmod -R u+w "${CT_STATE_DIR}.$$"
   187         nohup rm -rf "${CT_STATE_DIR}.$$" >/dev/null 2>&1 &
   188     fi
   189 fi
   190 
   191 # Create the directories we'll use, even if restarting: it does no harm to
   192 # create already existent directories, and CT_BUILD_DIR needs to be created
   193 # anyway
   194 mkdir -p "${CT_TARBALLS_DIR}"
   195 mkdir -p "${CT_SRC_DIR}"
   196 mkdir -p "${CT_BUILD_DIR}"
   197 mkdir -p "${CT_INSTALL_DIR}"
   198 mkdir -p "${CT_PREFIX_DIR}"
   199 mkdir -p "${CT_DEBUG_INSTALL_DIR}"
   200 mkdir -p "${CT_CC_CORE_STATIC_PREFIX_DIR}"
   201 mkdir -p "${CT_CC_CORE_SHARED_PREFIX_DIR}"
   202 mkdir -p "${CT_STATE_DIR}"
   203 
   204 # Kludge: CT_INSTALL_DIR and CT_PREFIX_DIR might have grown read-only if
   205 # the previous build was successfull. To be able to move the logfile there,
   206 # switch them back to read/write
   207 chmod -R u+w "${CT_INSTALL_DIR}" "${CT_PREFIX_DIR}"
   208 
   209 # Redirect log to the actual log file now we can
   210 # It's quite understandable that the log file will be installed in the install
   211 # directory, so we must first ensure it exists and is writeable (above) before
   212 # we can log there
   213 exec >/dev/null
   214 case "${CT_LOG_TO_FILE},${CT_LOG_FILE}" in
   215     ,*)   rm -f "${tmp_log_file}"
   216           ;;
   217     y,/*) mkdir -p "`dirname \"${CT_LOG_FILE}\"`"
   218           cat "${tmp_log_file}" >>"${CT_LOG_FILE}"
   219           rm -f "${tmp_log_file}"
   220           exec >>"${CT_LOG_FILE}"
   221           ;;
   222     y,*)  mkdir -p "`pwd`/`dirname \"${CT_LOG_FILE}\"`"
   223           cat "${tmp_log_file}" >>"`pwd`/${CT_LOG_FILE}"
   224           rm -f "${tmp_log_file}"
   225           exec >>"${CT_LOG_FILE}"
   226           ;;
   227 esac
   228 
   229 # Setting up the rest of the environment only is not restarting
   230 if [ -z "${CT_RESTART}" ]; then
   231     # Determine build system if not set by the user
   232     CT_Test "You did not specify the build system. That's OK, I can guess..." -z "${CT_BUILD}"
   233     CT_BUILD="`${CT_TOP_DIR}/tools/config.sub \"${CT_BUILD:-\`${CT_TOP_DIR}/tools/config.guess\`}\"`"
   234 
   235     # Arrange paths depending on wether we use sys-root or not.
   236     if [ "${CT_USE_SYSROOT}" = "y" ]; then
   237         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/sys-root"
   238         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/usr/include"
   239         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   240         CC_CORE_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   241         CC_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   242         LIBC_SYSROOT_ARG=""
   243         # glibc's prefix must be exactly /usr, else --with-sysroot'd gcc will get
   244         # confused when $sysroot/usr/include is not present.
   245         # Note: --prefix=/usr is magic!
   246         # See http://www.gnu.org/software/libc/FAQ.html#s-2.2
   247     else
   248         # plain old way. All libraries in prefix/target/lib
   249         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}"
   250         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/include"
   251         # hack!  Always use --with-sysroot for binutils.
   252         # binutils 2.14 and later obey it, older binutils ignore it.
   253         # Lets you build a working 32->64 bit cross gcc
   254         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   255         # Use --with-headers, else final gcc will define disable_glibc while
   256         # building libgcc, and you'll have no profiling
   257         CC_CORE_SYSROOT_ARG="--without-headers"
   258         CC_SYSROOT_ARG="--with-headers=${CT_HEADERS_DIR}"
   259         LIBC_SYSROOT_ARG="prefix="
   260     fi
   261 
   262     # Prepare the 'lib' directories in sysroot, else the ../lib64 hack used by
   263     # 32 -> 64 bit crosscompilers won't work, and build of final gcc will fail with
   264     #  "ld: cannot open crti.o: No such file or directory"
   265     mkdir -p "${CT_SYSROOT_DIR}/lib"
   266     mkdir -p "${CT_SYSROOT_DIR}/usr/lib"
   267 
   268     # Canadian-cross are really picky on the way they are built. Tweak the values.
   269     CT_UNIQ_BUILD=`echo "${CT_BUILD}" |sed -r -e 's/-/-build_/'`
   270     if [ "${CT_CANADIAN}" = "y" ]; then
   271         # Arrange so that gcc never, ever think that build system == host system
   272         CT_CANADIAN_OPT="--build=${CT_UNIQ_BUILD}"
   273         # We shall have a compiler for this target!
   274         # Do test here...
   275     else
   276         CT_HOST="${CT_BUILD}"
   277         CT_CANADIAN_OPT="--build=${CT_BUILD}"
   278         # Add the target toolchain in the path so that we can build the C library
   279         # Carefully add paths in the order we want them:
   280         #  - first try in ${CT_PREFIX_DIR}/bin
   281         #  - then try in ${CT_CC_CORE_SHARED_PREFIX_DIR}/bin
   282         #  - then try in ${CT_CC_CORE_STATIC_PREFIX_DIR}/bin
   283         #  - fall back to searching user's PATH
   284         export PATH="${CT_PREFIX_DIR}/bin:${CT_CC_CORE_SHARED_PREFIX_DIR}/bin:${CT_CC_CORE_STATIC_PREFIX_DIR}/bin:${PATH}"
   285     fi
   286 
   287     # Modify GCC_HOST to never be equal to $BUILD or $TARGET
   288     # This strange operation causes gcc to always generate a cross-compiler
   289     # even if the build machine is the same kind as the host.
   290     # This is why CC has to be set when doing a canadian cross; you can't find a
   291     # host compiler by appending -gcc to our whacky $GCC_HOST
   292     # Kludge: it is reported that the above causes canadian crosses with cygwin
   293     # hosts to fail, so avoid it just in that one case.  It would be cleaner to
   294     # just move this into the non-canadian case above, but I'm afraid that might
   295     # cause some configure script somewhere to decide that since build==host, they
   296     # could run host binaries.
   297     # (Copied almost as-is from original crosstool):
   298     case "${CT_KERNEL},${CT_CANADIAN}" in
   299         cygwin,y) ;;
   300         *,y)      CT_HOST="`echo \"${CT_HOST}\" |sed -r -e 's/-/-host_/;'`";;
   301     esac
   302 
   303     # Ah! Recent versions of binutils need some of the build and/or host system
   304     # (read CT_BUILD and CT_HOST) tools to be accessible (ar is but an example).
   305     # Do that:
   306     CT_DoLog EXTRA "Making build system tools available"
   307     mkdir -p "${CT_PREFIX_DIR}/bin"
   308     for tool in ar as dlltool gcc g++ gnatbind gnatmake ld nm ranlib strip windres objcopy objdump; do
   309         if [ -n "`which ${tool}`" ]; then
   310             ln -sfv "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_BUILD}-${tool}"
   311             ln -sfv "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_UNIQ_BUILD}-${tool}"
   312             ln -sfv "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_HOST}-${tool}"
   313         fi |CT_DoLog DEBUG
   314     done
   315 
   316     # Ha. cygwin host have an .exe suffix (extension) for executables.
   317     [ "${CT_KERNEL}" = "cygwin" ] && EXEEXT=".exe" || EXEEXT=""
   318 
   319     # Transform the ARCH into a kernel-understandable ARCH
   320     case "${CT_ARCH}" in
   321         x86) CT_KERNEL_ARCH=i386;;
   322         ppc) CT_KERNEL_ARCH=powerpc;;
   323         *)   CT_KERNEL_ARCH="${CT_ARCH}";;
   324     esac
   325 
   326     # Build up the TARGET_CFLAGS from user-provided options
   327     # Override with user-specified CFLAGS
   328     [ -n "${CT_ARCH_CPU}" ]  && CT_TARGET_CFLAGS="-mcpu=${CT_ARCH_CPU} ${CT_TARGET_CFLAGS}"
   329     [ -n "${CT_ARCH_TUNE}" ] && CT_TARGET_CFLAGS="-mtune=${CT_ARCH_TUNE} ${CT_TARGET_CFLAGS}"
   330     [ -n "${CT_ARCH_ARCH}" ] && CT_TARGET_CFLAGS="-march=${CT_ARCH_ARCH} ${CT_TARGET_CFLAGS}"
   331     [ -n "${CT_ARCH_FPU}" ]  && CT_TARGET_CFLAGS="-mfpu=${CT_ARCH_FPU} ${CT_TARGET_CFLAGS}"
   332 
   333     # Help gcc
   334     CT_CFLAGS_FOR_HOST=
   335     [ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST="${CT_CFLAGS_FOR_HOST} -pipe"
   336 
   337     # And help make go faster
   338     PARALLELMFLAGS=
   339     [ ${CT_PARALLEL_JOBS} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -j${CT_PARALLEL_JOBS}"
   340     [ ${CT_LOAD} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -l${CT_LOAD}"
   341 
   342     CT_DoStep EXTRA "Dumping internal crosstool-NG configuration"
   343     CT_DoLog EXTRA "Building a toolchain for:"
   344     CT_DoLog EXTRA "  build  = ${CT_BUILD}"
   345     CT_DoLog EXTRA "  host   = ${CT_HOST}"
   346     CT_DoLog EXTRA "  target = ${CT_TARGET}"
   347     set |egrep '^CT_.+=' |sort |CT_DoLog DEBUG
   348     CT_EndStep
   349 fi
   350 
   351 # Include sub-scripts instead of calling them: that way, we do not have to
   352 # export any variable, nor re-parse the configuration and functions files.
   353 . "${CT_TOP_DIR}/scripts/build/kernel_${CT_KERNEL}.sh"
   354 . "${CT_TOP_DIR}/scripts/build/binutils.sh"
   355 . "${CT_TOP_DIR}/scripts/build/libfloat.sh"
   356 . "${CT_TOP_DIR}/scripts/build/libc_${CT_LIBC}.sh"
   357 . "${CT_TOP_DIR}/scripts/build/cc_core_${CT_CC_CORE}.sh"
   358 . "${CT_TOP_DIR}/scripts/build/cc_${CT_CC}.sh"
   359 . "${CT_TOP_DIR}/scripts/build/debug.sh"
   360 . "${CT_TOP_DIR}/scripts/build/tools.sh"
   361 
   362 if [ -z "${CT_RESTART}" ]; then
   363     CT_DoStep INFO "Retrieving needed toolchain components' tarballs"
   364     do_kernel_get
   365     do_binutils_get
   366     do_cc_core_get
   367     do_libfloat_get
   368     do_libc_get
   369     do_cc_get
   370     do_tools_get
   371     do_debug_get
   372     CT_EndStep
   373 
   374     if [ "${CT_ONLY_DOWNLOAD}" != "y" ]; then
   375         if [ "${CT_FORCE_EXTRACT}" = "y" ]; then
   376             mv "${CT_SRC_DIR}" "${CT_SRC_DIR}.$$"
   377             nohup rm -rf "${CT_SRC_DIR}.$$" >/dev/null 2>&1
   378         fi
   379         CT_DoStep INFO "Extracting and patching toolchain components"
   380         do_kernel_extract
   381         do_binutils_extract
   382         do_cc_core_extract
   383         do_libfloat_extract
   384         do_libc_extract
   385         do_cc_extract
   386         do_tools_extract
   387         do_debug_extract
   388         CT_EndStep
   389     fi
   390 fi
   391 
   392 # Now for the job by itself. Go have a coffee!
   393 if [ "${CT_ONLY_DOWNLOAD}" != "y" -a "${CT_ONLY_EXTRACT}" != "y" ]; then
   394     # Because of CT_RESTART, this becomes quite complex
   395     do_stop=0
   396     prev_step=
   397     [ -n "${CT_RESTART}" ] && do_it=0 || do_it=1
   398     for step in libc_check_config       \
   399                 kernel_check_config     \
   400                 kernel_headers          \
   401                 binutils                \
   402                 cc_core_pass_1          \
   403                 libc_headers            \
   404                 libc_start_files        \
   405                 cc_core_pass_2          \
   406                 libfloat                \
   407                 libc                    \
   408                 cc                      \
   409                 libc_finish             \
   410                 tools                   \
   411                 debug                   \
   412                 ; do
   413         if [ ${do_it} -eq 0 ]; then
   414             if [ "${CT_RESTART}" = "${step}" ]; then
   415                 CT_DoLoadState "${step}"
   416                 do_it=1
   417                 do_stop=0
   418             fi
   419         else
   420             CT_DoSaveState ${step}
   421             if [ ${do_stop} -eq 1 ]; then
   422                 CT_DoLog ERROR "Stopping just after step \"${prev_step}\", as requested."
   423                 exit 0
   424             fi
   425         fi
   426         if [ ${do_it} -eq 1 ]; then
   427             do_${step}
   428             if [ "${CT_STOP}" = "${step}" ]; then
   429                 do_stop=1
   430             fi
   431             if [ "${CTDEBUG_CT_PAUSE_STEPS}" = "y" ]; then
   432                 CT_DoPause "Step \"${step}\" finished"
   433             fi
   434         fi
   435         prev_step="${step}"
   436     done
   437 
   438     # Create the aliases to the target tools
   439     if [ -n "${CT_TARGET_ALIAS}" ]; then
   440         CT_DoLog EXTRA "Creating symlinks from \"${CT_TARGET}-*\" to \"${CT_TARGET_ALIAS}-*\""
   441         CT_Pushd "${CT_PREFIX_DIR}/bin"
   442         for t in "${CT_TARGET}-"*; do
   443             _t="`echo \"$t\" |sed -r -e 's/^'\"${CT_TARGET}\"'-/'\"${CT_TARGET_ALIAS}\"'-/;'`"
   444             CT_DoLog DEBUG "Linking \"${_t}\" -> \"${t}\""
   445             ln -s "${t}" "${_t}"
   446         done
   447         CT_Popd
   448     fi
   449 
   450     # Remove the generated documentation files
   451     if [ "${CT_REMOVE_DOCS}" = "y" ]; then
   452     	CT_DoLog INFO "Removing installed documentation"
   453         rm -rf "${CT_PREFIX_DIR}/"{,usr/}{man,info}
   454         rm -rf "${CT_SYSROOT_DIR}/"{,usr/}{man,info}
   455         rm -rf "${CT_DEBUG_INSTALL_DIR}/"{,usr/}{man,info}
   456     fi
   457 
   458     CT_DoLog EXTRA "Removing access to the build system tools"
   459     find "${CT_PREFIX_DIR}/bin" -name "${CT_BUILD}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
   460     find "${CT_PREFIX_DIR}/bin" -name "${CT_UNIQ_BUILD}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
   461     find "${CT_PREFIX_DIR}/bin" -name "${CT_HOST}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
   462 fi
   463 
   464 # OK, now we're done, set the toolchain read-only
   465 # Don't log, the log file may become read-only any moment...
   466 chmod -R a-w "${CT_INSTALL_DIR}"
   467 
   468 # We still have some small bits to log
   469 chmod u+w "${CT_LOG_FILE}"
   470 
   471 CT_DoEnd INFO
   472 
   473 # All files should now be read-only, log file included
   474 chmod a-w "${CT_LOG_FILE}"
   475 
   476 trap - EXIT