scripts/crosstool.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jun 17 14:51:37 2007 +0000 (2007-06-17)
changeset 174 75f3f975e2ad
parent 165 a291bfa17715
child 182 223c84ec2d90
permissions -rwxr-xr-x
The log file is no longer configurable: it is always "${CT_PREFIX_DIR}/build.log".
Add an option to compress the log file upon successfull build.
Make rendering the toolchain read-only optional.
A few eye-candy fixes.
     1 #!/bin/bash
     2 # Copyright 2007 Yann E. MORIN
     3 # Licensed under the GPL v2. See COPYING in the root of this package.
     4 
     5 # This is the main entry point to crosstool
     6 # This will:
     7 #   - download, extract and patch the toolchain components
     8 #   - build and install each components in turn
     9 #   - and eventually test the resulting toolchain
    10 
    11 # What this file does is prepare the environment, based upon the user-choosen
    12 # options. It also checks the existing environment for un-friendly variables,
    13 # and builds the tools.
    14 
    15 # CT_TOP_DIR is set by the makefile. If we don't have it, something's gone horribly wrong...
    16 if [ -z "${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}" in
   215     y)  CT_LOG_FILE="${CT_PREFIX_DIR}/build.log"
   216         cat "${tmp_log_file}" >>"${CT_LOG_FILE}"
   217         rm -f "${tmp_log_file}"
   218         exec >>"${CT_LOG_FILE}"
   219         ;;
   220     *)  rm -f "${tmp_log_file}"
   221         ;;
   222 esac
   223 
   224 # Setting up the rest of the environment only is not restarting
   225 if [ -z "${CT_RESTART}" ]; then
   226     # Determine build system if not set by the user
   227     CT_Test "You did not specify the build system. That's OK, I can guess..." -z "${CT_BUILD}"
   228     CT_BUILD="`${CT_TOP_DIR}/tools/config.sub \"${CT_BUILD:-\`${CT_TOP_DIR}/tools/config.guess\`}\"`"
   229 
   230     # Arrange paths depending on wether we use sys-root or not.
   231     if [ "${CT_USE_SYSROOT}" = "y" ]; then
   232         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/sys-root"
   233         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/usr/include"
   234         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   235         CC_CORE_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   236         CC_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   237         LIBC_SYSROOT_ARG=""
   238         # glibc's prefix must be exactly /usr, else --with-sysroot'd gcc will get
   239         # confused when $sysroot/usr/include is not present.
   240         # Note: --prefix=/usr is magic!
   241         # See http://www.gnu.org/software/libc/FAQ.html#s-2.2
   242     else
   243         # plain old way. All libraries in prefix/target/lib
   244         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}"
   245         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/include"
   246         # hack!  Always use --with-sysroot for binutils.
   247         # binutils 2.14 and later obey it, older binutils ignore it.
   248         # Lets you build a working 32->64 bit cross gcc
   249         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   250         # Use --with-headers, else final gcc will define disable_glibc while
   251         # building libgcc, and you'll have no profiling
   252         CC_CORE_SYSROOT_ARG="--without-headers"
   253         CC_SYSROOT_ARG="--with-headers=${CT_HEADERS_DIR}"
   254         LIBC_SYSROOT_ARG="prefix="
   255     fi
   256 
   257     # Prepare the 'lib' directories in sysroot, else the ../lib64 hack used by
   258     # 32 -> 64 bit crosscompilers won't work, and build of final gcc will fail with
   259     #  "ld: cannot open crti.o: No such file or directory"
   260     mkdir -p "${CT_SYSROOT_DIR}/lib"
   261     mkdir -p "${CT_SYSROOT_DIR}/usr/lib"
   262 
   263     # Canadian-cross are really picky on the way they are built. Tweak the values.
   264     CT_UNIQ_BUILD=`echo "${CT_BUILD}" |sed -r -e 's/-/-build_/'`
   265     if [ "${CT_CANADIAN}" = "y" ]; then
   266         # Arrange so that gcc never, ever think that build system == host system
   267         CT_CANADIAN_OPT="--build=${CT_UNIQ_BUILD}"
   268         # We shall have a compiler for this target!
   269         # Do test here...
   270     else
   271         CT_HOST="${CT_BUILD}"
   272         CT_CANADIAN_OPT="--build=${CT_BUILD}"
   273         # Add the target toolchain in the path so that we can build the C library
   274         # Carefully add paths in the order we want them:
   275         #  - first try in ${CT_PREFIX_DIR}/bin
   276         #  - then try in ${CT_CC_CORE_SHARED_PREFIX_DIR}/bin
   277         #  - then try in ${CT_CC_CORE_STATIC_PREFIX_DIR}/bin
   278         #  - fall back to searching user's PATH
   279         export PATH="${CT_PREFIX_DIR}/bin:${CT_CC_CORE_SHARED_PREFIX_DIR}/bin:${CT_CC_CORE_STATIC_PREFIX_DIR}/bin:${PATH}"
   280     fi
   281 
   282     # Modify GCC_HOST to never be equal to $BUILD or $TARGET
   283     # This strange operation causes gcc to always generate a cross-compiler
   284     # even if the build machine is the same kind as the host.
   285     # This is why CC has to be set when doing a canadian cross; you can't find a
   286     # host compiler by appending -gcc to our whacky $GCC_HOST
   287     # Kludge: it is reported that the above causes canadian crosses with cygwin
   288     # hosts to fail, so avoid it just in that one case.  It would be cleaner to
   289     # just move this into the non-canadian case above, but I'm afraid that might
   290     # cause some configure script somewhere to decide that since build==host, they
   291     # could run host binaries.
   292     # (Copied almost as-is from original crosstool):
   293     case "${CT_KERNEL},${CT_CANADIAN}" in
   294         cygwin,y) ;;
   295         *,y)      CT_HOST="`echo \"${CT_HOST}\" |sed -r -e 's/-/-host_/;'`";;
   296     esac
   297 
   298     # Ah! Recent versions of binutils need some of the build and/or host system
   299     # (read CT_BUILD and CT_HOST) tools to be accessible (ar is but an example).
   300     # Do that:
   301     CT_DoLog DEBUG "Making build system tools available"
   302     mkdir -p "${CT_PREFIX_DIR}/bin"
   303     for tool in ar as dlltool gcc g++ gnatbind gnatmake ld nm ranlib strip windres objcopy objdump; do
   304         if [ -n "`which ${tool}`" ]; then
   305             ln -sfv "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_BUILD}-${tool}"
   306             ln -sfv "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_UNIQ_BUILD}-${tool}"
   307             ln -sfv "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_HOST}-${tool}"
   308         fi |CT_DoLog DEBUG
   309     done
   310 
   311     # Ha. cygwin host have an .exe suffix (extension) for executables.
   312     [ "${CT_KERNEL}" = "cygwin" ] && EXEEXT=".exe" || EXEEXT=""
   313 
   314     # Transform the ARCH into a kernel-understandable ARCH
   315     case "${CT_ARCH}" in
   316         x86) CT_KERNEL_ARCH=i386;;
   317         ppc) CT_KERNEL_ARCH=powerpc;;
   318         *)   CT_KERNEL_ARCH="${CT_ARCH}";;
   319     esac
   320 
   321     # Build up the TARGET_CFLAGS from user-provided options
   322     # Override with user-specified CFLAGS
   323     [ -n "${CT_ARCH_CPU}" ]  && CT_TARGET_CFLAGS="-mcpu=${CT_ARCH_CPU} ${CT_TARGET_CFLAGS}"
   324     [ -n "${CT_ARCH_TUNE}" ] && CT_TARGET_CFLAGS="-mtune=${CT_ARCH_TUNE} ${CT_TARGET_CFLAGS}"
   325     [ -n "${CT_ARCH_ARCH}" ] && CT_TARGET_CFLAGS="-march=${CT_ARCH_ARCH} ${CT_TARGET_CFLAGS}"
   326     [ -n "${CT_ARCH_FPU}" ]  && CT_TARGET_CFLAGS="-mfpu=${CT_ARCH_FPU} ${CT_TARGET_CFLAGS}"
   327 
   328     # Help gcc
   329     CT_CFLAGS_FOR_HOST=
   330     [ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST="${CT_CFLAGS_FOR_HOST} -pipe"
   331 
   332     # And help make go faster
   333     PARALLELMFLAGS=
   334     [ ${CT_PARALLEL_JOBS} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -j${CT_PARALLEL_JOBS}"
   335     [ ${CT_LOAD} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -l${CT_LOAD}"
   336 
   337     CT_DoStep EXTRA "Dumping internal crosstool-NG configuration"
   338     CT_DoLog EXTRA "Building a toolchain for:"
   339     CT_DoLog EXTRA "  build  = ${CT_BUILD}"
   340     CT_DoLog EXTRA "  host   = ${CT_HOST}"
   341     CT_DoLog EXTRA "  target = ${CT_TARGET}"
   342     set |egrep '^CT_.+=' |sort |CT_DoLog DEBUG
   343     CT_EndStep
   344 fi
   345 
   346 # Include sub-scripts instead of calling them: that way, we do not have to
   347 # export any variable, nor re-parse the configuration and functions files.
   348 . "${CT_TOP_DIR}/scripts/build/kernel_${CT_KERNEL}.sh"
   349 . "${CT_TOP_DIR}/scripts/build/binutils.sh"
   350 . "${CT_TOP_DIR}/scripts/build/libfloat.sh"
   351 . "${CT_TOP_DIR}/scripts/build/libc_${CT_LIBC}.sh"
   352 . "${CT_TOP_DIR}/scripts/build/cc_core_${CT_CC_CORE}.sh"
   353 . "${CT_TOP_DIR}/scripts/build/cc_${CT_CC}.sh"
   354 . "${CT_TOP_DIR}/scripts/build/debug.sh"
   355 . "${CT_TOP_DIR}/scripts/build/tools.sh"
   356 
   357 if [ -z "${CT_RESTART}" ]; then
   358     CT_DoStep INFO "Retrieving needed toolchain components' tarballs"
   359     do_kernel_get
   360     do_binutils_get
   361     do_cc_core_get
   362     do_libfloat_get
   363     do_libc_get
   364     do_cc_get
   365     do_tools_get
   366     do_debug_get
   367     CT_EndStep
   368 
   369     if [ "${CT_ONLY_DOWNLOAD}" != "y" ]; then
   370         if [ "${CT_FORCE_EXTRACT}" = "y" ]; then
   371             mv "${CT_SRC_DIR}" "${CT_SRC_DIR}.$$"
   372             nohup rm -rf "${CT_SRC_DIR}.$$" >/dev/null 2>&1
   373         fi
   374         CT_DoStep INFO "Extracting and patching toolchain components"
   375         do_kernel_extract
   376         do_binutils_extract
   377         do_cc_core_extract
   378         do_libfloat_extract
   379         do_libc_extract
   380         do_cc_extract
   381         do_tools_extract
   382         do_debug_extract
   383         CT_EndStep
   384     fi
   385 fi
   386 
   387 # Now for the job by itself. Go have a coffee!
   388 if [ "${CT_ONLY_DOWNLOAD}" != "y" -a "${CT_ONLY_EXTRACT}" != "y" ]; then
   389     # Because of CT_RESTART, this becomes quite complex
   390     do_stop=0
   391     prev_step=
   392     [ -n "${CT_RESTART}" ] && do_it=0 || do_it=1
   393     for step in libc_check_config       \
   394                 kernel_check_config     \
   395                 kernel_headers          \
   396                 binutils                \
   397                 cc_core_pass_1          \
   398                 libc_headers            \
   399                 libc_start_files        \
   400                 cc_core_pass_2          \
   401                 libfloat                \
   402                 libc                    \
   403                 cc                      \
   404                 libc_finish             \
   405                 tools                   \
   406                 debug                   \
   407                 ; do
   408         if [ ${do_it} -eq 0 ]; then
   409             if [ "${CT_RESTART}" = "${step}" ]; then
   410                 CT_DoLoadState "${step}"
   411                 do_it=1
   412                 do_stop=0
   413             fi
   414         else
   415             CT_DoSaveState ${step}
   416             if [ ${do_stop} -eq 1 ]; then
   417                 CT_DoLog ERROR "Stopping just after step \"${prev_step}\", as requested."
   418                 exit 0
   419             fi
   420         fi
   421         if [ ${do_it} -eq 1 ]; then
   422             do_${step}
   423             if [ "${CT_STOP}" = "${step}" ]; then
   424                 do_stop=1
   425             fi
   426             if [ "${CTDEBUG_CT_PAUSE_STEPS}" = "y" ]; then
   427                 CT_DoPause "Step \"${step}\" finished"
   428             fi
   429         fi
   430         prev_step="${step}"
   431     done
   432 
   433     # Create the aliases to the target tools
   434     if [ -n "${CT_TARGET_ALIAS}" ]; then
   435         CT_DoLog EXTRA "Creating symlinks from \"${CT_TARGET}-*\" to \"${CT_TARGET_ALIAS}-*\""
   436         CT_Pushd "${CT_PREFIX_DIR}/bin"
   437         for t in "${CT_TARGET}-"*; do
   438             _t="`echo \"$t\" |sed -r -e 's/^'\"${CT_TARGET}\"'-/'\"${CT_TARGET_ALIAS}\"'-/;'`"
   439             CT_DoLog DEBUG "Linking \"${_t}\" -> \"${t}\""
   440             ln -s "${t}" "${_t}"
   441         done
   442         CT_Popd
   443     fi
   444 
   445     # Remove the generated documentation files
   446     if [ "${CT_REMOVE_DOCS}" = "y" ]; then
   447     	CT_DoLog INFO "Removing installed documentation"
   448         rm -rf "${CT_PREFIX_DIR}/"{,usr/}{man,info}
   449         rm -rf "${CT_SYSROOT_DIR}/"{,usr/}{man,info}
   450         rm -rf "${CT_DEBUG_INSTALL_DIR}/"{,usr/}{man,info}
   451     fi
   452 
   453     CT_DoLog DEBUG "Removing access to the build system tools"
   454     find "${CT_PREFIX_DIR}/bin" -name "${CT_BUILD}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
   455     find "${CT_PREFIX_DIR}/bin" -name "${CT_UNIQ_BUILD}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
   456     find "${CT_PREFIX_DIR}/bin" -name "${CT_HOST}-"'*' -exec rm -fv {} \+ |CT_DoLog DEBUG
   457 fi
   458 
   459 CT_DoEnd INFO
   460 
   461 if [ "${CT_LOG_FILE_COMPRESS}" = y ]; then
   462     CT_DoLog EXTRA "Compressing log file"
   463     exec >/dev/null
   464     bzip2 -9 "${CT_LOG_FILE}"
   465 fi
   466 
   467 if [ "${CT_INSTALL_DIR_RO}" = "y" ]; then
   468     # OK, now we're done, set the toolchain read-only
   469     # Don't log, the log file may become read-only any moment...
   470     chmod -R a-w "${CT_INSTALL_DIR}" >/dev/null 2>&1
   471 fi
   472 
   473 trap - EXIT