scripts/crosstool-NG.sh.in
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Aug 02 23:10:37 2011 +0200 (2011-08-02)
changeset 2595 d6b2354d9d17
parent 2564 5d4e91c0343e
child 2653 e5fc5c9ea78a
permissions -rw-r--r--
scripts: try the mirror even if downloads are forbidden

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     1 #!@@CT_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 # Note: some initialisation and sanitizing is done while parsing this file,
    17 # most notably:
    18 #  - set trap handler on errors,
    19 #  - don't hash commands lookups,
    20 #  - initialise logging.
    21 . "${CT_LIB_DIR}/scripts/functions"
    22 
    23 # Parse the configuration file
    24 # It has some info about the logging facility, so include it early
    25 . .config.2
    26 # Yes! We can do full logging from now on!
    27 
    28 # Override the locale early, in case we ever translate crosstool-NG messages
    29 if [ -z "${CT_NO_OVERIDE_LC_MESSAGES}" ]; then
    30     export LC_ALL=C
    31     export LANG=C
    32 fi
    33 
    34 # remove . from PATH since it can cause gcc build failures
    35 CT_SanitizePath
    36 
    37 # Some sanity checks in the environment and needed tools
    38 CT_DoLog INFO "Performing some trivial sanity checks"
    39 CT_TestAndAbort "Don't set LD_LIBRARY_PATH. It screws up the build." -n "${LD_LIBRARY_PATH}"
    40 CT_TestAndAbort "Don't set CFLAGS. It screws up the build." -n "${CFLAGS}"
    41 CT_TestAndAbort "Don't set CXXFLAGS. It screws up the build." -n "${CXXFLAGS}"
    42 CT_Test "GREP_OPTIONS screws up the build. Resetting." -n "${GREP_OPTIONS}"
    43 export GREP_OPTIONS=
    44 
    45 # Some sanity checks on paths content
    46 for d in            \
    47     LOCAL_TARBALLS  \
    48     WORK            \
    49     PREFIX          \
    50     INSTALL         \
    51     ; do
    52         eval dir="\${CT_${d}_DIR}"
    53         case "${dir}" in
    54             *" "*)
    55                 CT_Abort "'CT_${d}_DIR'='${dir}' contains a space in it.\nDon't use spaces in paths, it breaks things."
    56                 ;;
    57         esac
    58 done
    59 
    60 # Where will we work?
    61 CT_WORK_DIR="${CT_WORK_DIR:-${CT_TOP_DIR}/targets}"
    62 CT_DoExecLog ALL mkdir -p "${CT_WORK_DIR}"
    63 
    64 # Check build file system case-sensitiveness
    65 CT_DoExecLog DEBUG touch "${CT_WORK_DIR}/foo"
    66 CT_TestAndAbort "Your file system in '${CT_WORK_DIR}' is *not* case-sensitive!" -f "${CT_WORK_DIR}/FOO"
    67 CT_DoExecLog DEBUG rm -f "${CT_WORK_DIR}/foo"
    68 
    69 # What's our shell?
    70 # Will be plain /bin/sh on most systems, except if we have /bin/ash and we
    71 # _explictly_ required using it
    72 case "${CT_CONFIG_SHELL}" in
    73     sh)     CT_SHELL="/bin/sh";;
    74     ash)    CT_SHELL="/bin/ash";;
    75     bash)   CT_SHELL="${BASH}";;
    76     custom) CT_SHELL="${CT_CONFIG_SHELL_CUSTOM_PATH}";;
    77 esac
    78 
    79 # Check the user is using an existing SHELL to be used by ./configure and Makefiles
    80 CT_TestOrAbort "The CONFIG_SHELL '${CT_CONFIG_SHELL}' (${CT_SHELL}) is not valid" -f "${CT_SHELL}" -a -x "${CT_SHELL}"
    81 
    82 # Create the bin-override early
    83 # Contains symlinks to the tools found by ./configure
    84 # Note: CT_DoLog and CT_DoExecLog do not use any of those tool, so
    85 # they can be safely used
    86 CT_TOOLS_OVERIDE_DIR="${CT_WORK_DIR}/tools"
    87 CT_DoLog DEBUG "Creating bin-override for tools in '${CT_TOOLS_OVERIDE_DIR}'"
    88 CT_DoExecLog DEBUG mkdir -p "${CT_TOOLS_OVERIDE_DIR}/bin"
    89 cat "${CT_LIB_DIR}/paths.mk" |while read trash line; do
    90     tool="${line%%=*}"
    91     path="${line#*=}"
    92     CT_DoLog DEBUG "Creating script-override for '${tool}' -> '${path}'"
    93     printf "#${BANG}${CT_SHELL}\nexec '${path}' \"\${@}\"\n" >"${CT_TOOLS_OVERIDE_DIR}/bin/${tool}"
    94     CT_DoExecLog ALL chmod 700 "${CT_TOOLS_OVERIDE_DIR}/bin/${tool}"
    95 done
    96 export PATH="${CT_TOOLS_OVERIDE_DIR}/bin:${PATH}"
    97 
    98 # Start date. Can't be done until we know the locale
    99 # Also requires the bin-override tools
   100 CT_STAR_DATE=$(CT_DoDate +%s%N)
   101 CT_STAR_DATE_HUMAN=$(CT_DoDate +%Y%m%d.%H%M%S)
   102 
   103 # Log real begining of build, now
   104 CT_DoLog INFO "Build started ${CT_STAR_DATE_HUMAN}"
   105 
   106 # We really need to extract from ,config and not .config.2, as we
   107 # do want the kconfig's values, not our mangled config with arrays.
   108 CT_DoStep DEBUG "Dumping user-supplied crosstool-NG configuration"
   109 CT_DoExecLog DEBUG grep -E '^(# |)CT_' .config
   110 CT_EndStep
   111 
   112 CT_DoLog DEBUG "Unsetting and unexporting MAKEFLAGS"
   113 unset MAKEFLAGS
   114 export MAKEFLAGS
   115 
   116 CT_DoLog INFO "Building environment variables"
   117 
   118 # Include sub-scripts instead of calling them: that way, we do not have to
   119 # export any variable, nor re-parse the configuration and functions files.
   120 . "${CT_LIB_DIR}/scripts/build/internals.sh"
   121 . "${CT_LIB_DIR}/scripts/build/arch/${CT_ARCH}.sh"
   122 . "${CT_LIB_DIR}/scripts/build/companion_tools.sh"
   123 . "${CT_LIB_DIR}/scripts/build/kernel/${CT_KERNEL}.sh"
   124 . "${CT_LIB_DIR}/scripts/build/companion_libs/gmp.sh"
   125 . "${CT_LIB_DIR}/scripts/build/companion_libs/mpfr.sh"
   126 . "${CT_LIB_DIR}/scripts/build/companion_libs/ppl.sh"
   127 . "${CT_LIB_DIR}/scripts/build/companion_libs/cloog.sh"
   128 . "${CT_LIB_DIR}/scripts/build/companion_libs/mpc.sh"
   129 . "${CT_LIB_DIR}/scripts/build/companion_libs/libelf.sh"
   130 . "${CT_LIB_DIR}/scripts/build/binutils/binutils.sh"
   131 . "${CT_LIB_DIR}/scripts/build/binutils/elf2flt.sh"
   132 . "${CT_LIB_DIR}/scripts/build/binutils/sstrip.sh"
   133 . "${CT_LIB_DIR}/scripts/build/libc/${CT_LIBC}.sh"
   134 . "${CT_LIB_DIR}/scripts/build/cc/${CT_CC}.sh"
   135 . "${CT_LIB_DIR}/scripts/build/debug.sh"
   136 . "${CT_LIB_DIR}/scripts/build/test_suite.sh"
   137 
   138 # Target tuple: CT_TARGET needs a little love:
   139 CT_DoBuildTargetTuple
   140 
   141 # Kludge: If any of the configured options needs CT_TARGET,
   142 # then rescan the options file now:
   143 . .config.2
   144 
   145 # Sanity check some directories
   146 CT_TestAndAbort "'CT_PREFIX_DIR' is not set: where should I install?" -z "${CT_PREFIX_DIR}"
   147 
   148 # Second kludge: merge user-supplied target CFLAGS with architecture-provided
   149 # target CFLAGS. Do the same for LDFLAGS in case it happens in the future.
   150 # Put user-supplied flags at the end, so that they take precedence.
   151 CT_TARGET_CFLAGS="${CT_ARCH_TARGET_CFLAGS} ${CT_TARGET_CFLAGS}"
   152 CT_TARGET_LDFLAGS="${CT_ARCH_TARGET_LDFLAGS} ${CT_TARGET_LDFLAGS}"
   153 CT_CC_CORE_EXTRA_CONFIG_ARRAY=( ${CT_ARCH_CC_CORE_EXTRA_CONFIG} "${CT_CC_CORE_EXTRA_CONFIG_ARRAY[@]}" )
   154 CT_CC_EXTRA_CONFIG_ARRAY=( ${CT_ARCH_CC_EXTRA_CONFIG} "${CT_CC_EXTRA_CONFIG_ARRAY[@]}" )
   155 
   156 # Compute the package version string
   157 CT_PKGVERSION="crosstool-NG ${CT_VERSION}${CT_TOOLCHAIN_PKGVERSION:+ - ${CT_TOOLCHAIN_PKGVERSION}}"
   158 
   159 # Compute the working directories names
   160 CT_TARBALLS_DIR="${CT_WORK_DIR}/tarballs"
   161 CT_SRC_DIR="${CT_WORK_DIR}/src"
   162 CT_BUILD_DIR="${CT_WORK_DIR}/${CT_TARGET}/build"
   163 CT_BUILDTOOLS_PREFIX_DIR="${CT_WORK_DIR}/${CT_TARGET}/buildtools"
   164 CT_STATE_DIR="${CT_WORK_DIR}/${CT_TARGET}/state"
   165 CT_CONFIG_DIR="${CT_BUILD_DIR}/configs"
   166 CT_COMPLIBS_DIR="${CT_BUILD_DIR}/static"
   167 
   168 # Compute test suite install directory
   169 CT_TEST_SUITE_DIR=${CT_INSTALL_DIR}/test-suite
   170 
   171 # Note: we'll always install the core compiler in its own directory, so as to
   172 # not mix the two builds: core and final.
   173 CT_CC_CORE_STATIC_PREFIX_DIR="${CT_BUILD_DIR}/${CT_CC}-core-static"
   174 CT_CC_CORE_SHARED_PREFIX_DIR="${CT_BUILD_DIR}/${CT_CC}-core-shared"
   175 
   176 # We must ensure that we can restart if asked for!
   177 if [ -n "${CT_RESTART}" -a ! -d "${CT_STATE_DIR}"  ]; then
   178     CT_DoLog ERROR "You asked to restart a non-restartable build"
   179     CT_DoLog ERROR "This happened because you didn't set CT_DEBUG_CT_SAVE_STEPS"
   180     CT_DoLog ERROR "in the config options for the previous build, or the state"
   181     CT_DoLog ERROR "directory for the previous build was deleted."
   182     CT_Abort "I will stop here to avoid any carnage"
   183 fi
   184 
   185 # If the local tarball directory does not exist, say so, and don't try to save there!
   186 if [    "${CT_SAVE_TARBALLS}" = "y"     \
   187      -a ! -d "${CT_LOCAL_TARBALLS_DIR}" ]; then
   188     CT_DoLog WARN "Directory '${CT_LOCAL_TARBALLS_DIR}' does not exist."
   189     CT_DoLog WARN "Will not save downloaded tarballs to local storage."
   190     CT_SAVE_TARBALLS=
   191 fi
   192 
   193 # Check now if we can write to the destination directory:
   194 if [ -d "${CT_INSTALL_DIR}" ]; then
   195     CT_TestAndAbort "Destination directory '${CT_INSTALL_DIR}' is not removable" ! -w $(dirname "${CT_INSTALL_DIR}")
   196 fi
   197 
   198 # Good, now grab a bit of informations on the system we're being run on,
   199 # just in case something goes awok, and it's not our fault:
   200 CT_SYS_USER=$(id -un)
   201 CT_SYS_HOSTNAME=$(hostname -f 2>/dev/null || true)
   202 # Hmmm. Some non-DHCP-enabled machines do not have an FQDN... Fall back to node name.
   203 CT_SYS_HOSTNAME="${CT_SYS_HOSTNAME:-$(uname -n)}"
   204 CT_SYS_KERNEL=$(uname -s)
   205 CT_SYS_REVISION=$(uname -r)
   206 CT_SYS_OS=$(uname -s)
   207 CT_SYS_MACHINE=$(uname -m)
   208 CT_SYS_PROCESSOR=$(uname -p)
   209 CT_SYS_GCC=$(gcc -dumpversion)
   210 CT_SYS_TARGET=$(CT_DoConfigGuess)
   211 CT_TOOLCHAIN_ID="crosstool-${CT_VERSION} build ${CT_STAR_DATE_HUMAN} by ${CT_SYS_USER}@${CT_SYS_HOSTNAME}"
   212 
   213 CT_DoLog EXTRA "Preparing working directories"
   214 
   215 # Ah! The build directory shall be eradicated, even if we restart!
   216 # Ditto for the build tools install dir
   217 CT_DoForceRmdir "${CT_BUILD_DIR}" "${CT_BUILDTOOLS_PREFIX_DIR}"
   218 
   219 # Don't eradicate directories if we need to restart
   220 if [ -z "${CT_RESTART}" ]; then
   221     # Get rid of pre-existing installed toolchain and previous build directories.
   222     if [ "${CT_FORCE_DOWNLOAD}" = "y" -a -d "${CT_TARBALLS_DIR}" ]; then
   223         CT_DoForceRmdir "${CT_TARBALLS_DIR}"
   224     fi
   225     if [ "${CT_FORCE_EXTRACT}" = "y" -a -d "${CT_SRC_DIR}" ]; then
   226         CT_DoForceRmdir "${CT_SRC_DIR}"
   227     fi
   228     if [ -d "${CT_INSTALL_DIR}" -a "${CT_RM_RF_PREFIX_DIR}" = "y" ]; then
   229         CT_DoForceRmdir "${CT_INSTALL_DIR}"
   230     fi
   231     # In case we start anew, get rid of the previously saved state directory
   232     if [ -d "${CT_STATE_DIR}" ]; then
   233         CT_DoForceRmdir "${CT_STATE_DIR}"
   234     fi
   235 fi
   236 
   237 # Create the directories we'll use, even if restarting: it does no harm to
   238 # create already existent directories, and CT_BUILD_DIR needs to be created
   239 # anyway
   240 CT_DoExecLog ALL mkdir -p "${CT_TARBALLS_DIR}"
   241 CT_DoExecLog ALL mkdir -p "${CT_SRC_DIR}"
   242 CT_DoExecLog ALL mkdir -p "${CT_BUILD_DIR}"
   243 CT_DoExecLog ALL mkdir -p "${CT_BUILDTOOLS_PREFIX_DIR}/bin"
   244 CT_DoExecLog ALL mkdir -p "${CT_CONFIG_DIR}"
   245 CT_DoExecLog ALL mkdir -p "${CT_INSTALL_DIR}"
   246 CT_DoExecLog ALL mkdir -p "${CT_PREFIX_DIR}"
   247 CT_DoExecLog ALL mkdir -p "${CT_COMPLIBS_DIR}"
   248 if [ -z "${CT_CANADIAN}" ]; then
   249     CT_DoExecLog ALL mkdir -p "${CT_CC_CORE_STATIC_PREFIX_DIR}"
   250     CT_DoExecLog ALL mkdir -p "${CT_CC_CORE_SHARED_PREFIX_DIR}"
   251 fi
   252 
   253 # Only create the state dir if asked for a restartable build
   254 [ -n "${CT_DEBUG_CT_SAVE_STEPS}" ] && CT_DoExecLog ALL mkdir -p "${CT_STATE_DIR}"
   255 
   256 # Check install file system case-sensitiveness
   257 CT_DoExecLog DEBUG touch "${CT_PREFIX_DIR}/foo"
   258 CT_TestAndAbort "Your file system in '${CT_PREFIX_DIR}' is *not* case-sensitive!" -f "${CT_PREFIX_DIR}/FOO"
   259 CT_DoExecLog DEBUG rm -f "${CT_PREFIX_DIR}/foo"
   260 
   261 # Kludge: CT_INSTALL_DIR and CT_PREFIX_DIR might have grown read-only if
   262 # the previous build was successful.
   263 CT_DoExecLog ALL chmod -R u+w "${CT_INSTALL_DIR}" "${CT_PREFIX_DIR}"
   264 
   265 # Setting up the rest of the environment only if not restarting
   266 if [ -z "${CT_RESTART}" ]; then
   267     case "${CT_SYSROOT_NAME}" in
   268         "")     CT_SYSROOT_NAME="sysroot";;
   269         .)      CT_Abort "Sysroot name is set to '.' which is forbidden";;
   270         *' '*)  CT_Abort "Sysroot name contains forbidden space(s): '${CT_SYSROOT_NAME}'";;
   271         */*)    CT_Abort "Sysroot name contains forbidden slash(es): '${CT_SYSROOT_NAME}'";;
   272     esac
   273 
   274     # Arrange paths depending on wether we use sysroot or not.
   275     if [ "${CT_USE_SYSROOT}" = "y" ]; then
   276         CT_SYSROOT_REL_DIR="${CT_SYSROOT_DIR_PREFIX}/${CT_SYSROOT_NAME}"
   277         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/${CT_SYSROOT_REL_DIR}"
   278         CT_DEBUGROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/${CT_SYSROOT_DIR_PREFIX}/debug-root"
   279         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/usr/include"
   280         CT_SanitiseVarDir CT_SYSROOT_REL_DIR CT_SYSROOT_DIR CT_DEBUGROOT_DIR CT_HEADERS_DIR 
   281         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   282         CC_CORE_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   283         CC_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   284         LIBC_SYSROOT_ARG=""
   285         # glibc's prefix must be exactly /usr, else --with-sysroot'd gcc will get
   286         # confused when $sysroot/usr/include is not present.
   287         # Note: --prefix=/usr is magic!
   288         # See http://www.gnu.org/software/libc/FAQ.html#s-2.2
   289     else
   290         # plain old way. All libraries in prefix/target/lib
   291         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}"
   292         CT_DEBUGROOT_DIR="${CT_SYSROOT_DIR}"
   293         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/include"
   294         CT_SanitiseVarDir CT_SYSROOT_DIR CT_DEBUGROOT_DIR CT_HEADERS_DIR 
   295         # hack!  Always use --with-sysroot for binutils.
   296         # binutils 2.14 and later obey it, older binutils ignore it.
   297         # Lets you build a working 32->64 bit cross gcc
   298         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   299         # Use --with-headers, else final gcc will define disable_glibc while
   300         # building libgcc, and you'll have no profiling
   301         CC_CORE_SYSROOT_ARG="--without-headers"
   302         CC_SYSROOT_ARG="--with-headers=${CT_HEADERS_DIR}"
   303         LIBC_SYSROOT_ARG="prefix="
   304     fi
   305     CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}"
   306     CT_DoExecLog ALL mkdir -p "${CT_DEBUGROOT_DIR}"
   307 
   308     # Prepare the 'lib' directories in sysroot, else the ../lib64 hack used by
   309     # 32 -> 64 bit crosscompilers won't work, and build of final gcc will fail
   310     # with: "ld: cannot open crti.o: No such file or directory"
   311     # Also prepare the lib directory in the install dir, else some 64 bit archs
   312     # won't build
   313     CT_DoExecLog ALL mkdir -p "${CT_PREFIX_DIR}/lib"
   314     CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}/lib"
   315     CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}/usr/lib"
   316     CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}/usr/include"
   317 
   318     if [ "${CT_USE_SYSROOT}" = "y" ]; then
   319         # Prevent gcc from installing its libraries outside of the sysroot
   320         CT_DoExecLog ALL ln -sf ".${CT_SYSROOT_REL_DIR}/lib" "${CT_PREFIX_DIR}/${CT_TARGET}/lib"
   321     fi
   322 
   323     # Since we're *not* multilib on the target side, we want all the
   324     # libraries to end up in "lib".  We create "lib64" (for 64-bit
   325     # build or host architectures) and "lib32" (for 32-bit emulation
   326     # on 64-bit) as symlinks to "lib".
   327     #
   328     # Not all of these symlinks are necessary, but better safe than
   329     # sorry. They are summarily removed by build/internals.sh:do_finish.
   330     for d in                            \
   331         "${CT_PREFIX_DIR}"              \
   332         "${CT_SYSROOT_DIR}"             \
   333         "${CT_SYSROOT_DIR}/usr"         \
   334         "${CT_PREFIX_DIR}/${CT_TARGET}" \
   335     ; do
   336         CT_DoExecLog ALL ln -sf "lib" "${d}/lib32"
   337         CT_DoExecLog ALL ln -sf "lib" "${d}/lib64"
   338     done
   339 
   340     # Determine build system if not set by the user
   341     if [ -z "${CT_BUILD}" ]; then
   342         CT_BUILD=$(CT_DoConfigGuess)
   343     fi
   344 
   345     # Prepare mangling patterns to later modify BUILD and HOST (see below)
   346     case "${CT_TOOLCHAIN_TYPE}" in
   347         cross)
   348             # A cross-compiler runs on the same machine it is built on
   349             CT_HOST="${CT_BUILD}"
   350             build_mangle="build_"
   351             host_mangle="build_"
   352             target_mangle=""
   353             install_build_tools_for="BUILD HOST"
   354             ;;
   355         canadian)
   356             build_mangle="build_"
   357             host_mangle="host_"
   358             target_mangle=""
   359             install_build_tools_for="BUILD HOST TARGET"
   360             ;;
   361         *)  CT_Abort "No code for '${CT_TOOLCHAIN_TYPE}' toolchain type!"
   362             ;;
   363     esac
   364 
   365     # Save the real tuples to generate shell-wrappers to the real tools
   366     CT_REAL_BUILD="${CT_BUILD}"
   367     CT_REAL_HOST="${CT_HOST}"
   368     CT_REAL_TARGET="${CT_TARGET}"
   369 
   370     # Canonicalise CT_BUILD and CT_HOST
   371     # Not only will it give us full-qualified tuples, but it will also ensure
   372     # that they are valid tuples (in case of typo with user-provided tuples)
   373     # That's way better than trying to rewrite config.sub ourselves...
   374     # CT_TARGET is already made canonical in CT_DoBuildTargetTuple
   375     CT_BUILD=$(CT_DoConfigSub "${CT_BUILD}")
   376     CT_HOST=$(CT_DoConfigSub "${CT_HOST}")
   377 
   378     # Modify BUILD and HOST so that gcc always generate a cross-compiler
   379     # even if any of the build, host or target machines are the same.
   380     # NOTE: we'll have to mangle the (BUILD|HOST)->TARGET x-compiler to
   381     #       support canadain build, later...
   382     CT_BUILD="${CT_BUILD/-/-${build_mangle}}"
   383     CT_HOST="${CT_HOST/-/-${host_mangle}}"
   384     CT_TARGET="${CT_TARGET/-/-${target_mangle}}"
   385 
   386     # Now we have mangled our BUILD and HOST tuples, we must fake the new
   387     # cross-tools for those mangled tuples.
   388     CT_DoLog DEBUG "Making build system tools available"
   389     for m in ${install_build_tools_for}; do
   390         r="CT_REAL_${m}"
   391         v="CT_${m}"
   392         p="CT_${m}_PREFIX"
   393         s="CT_${m}_SUFFIX"
   394         if [ -n "${!p}" ]; then
   395             t="${!p}"
   396         else
   397             t="${!r}-"
   398         fi
   399 
   400         for tool in ar as dlltool gcc g++ gcj gnatbind gnatmake ld nm objcopy objdump ranlib strip windres; do
   401             # First try with prefix + suffix
   402             # Then try with prefix only
   403             # Then try with suffix only, but only for BUILD, and HOST iff REAL_BUILD == REAL_HOST
   404             # Finally try with neither prefix nor suffix, but only for BUILD, and HOST iff REAL_BUILD == REAL_HOST
   405             # This is needed, because some tools have a prefix and
   406             # a suffix (eg. gcc), while others may have only one,
   407             # or even none (eg. binutils)
   408             where=$(CT_Which "${t}${tool}${!s}")
   409             [ -z "${where}" ] && where=$(CT_Which "${t}${tool}")
   410             if [    -z "${where}"                         \
   411                  -a \(    "${m}" = "BUILD"                \
   412                        -o "${CT_REAL_BUILD}" = "${!r}" \) ]; then
   413                 where=$(CT_Which "${tool}${!s}")
   414             fi
   415             if [ -z "${where}"                            \
   416                  -a \(    "${m}" = "BUILD"                \
   417                        -o "${CT_REAL_BUILD}" = "${!r}" \) ]; then
   418                 where=$(CT_Which "${tool}")
   419             fi
   420 
   421             # Not all tools are available for all platforms, but some are really,
   422             # bally needed
   423             if [ -n "${where}" ]; then
   424                 CT_DoLog DEBUG "  '${!v}-${tool}' -> '${where}'"
   425                 printf "#${BANG}${CT_SHELL}\nexec '${where}' \"\${@}\"\n" >"${CT_BUILDTOOLS_PREFIX_DIR}/bin/${!v}-${tool}"
   426                 CT_DoExecLog ALL chmod 700 "${CT_BUILDTOOLS_PREFIX_DIR}/bin/${!v}-${tool}"
   427             else
   428                 case "${tool}" in
   429                     # We'll at least need some of them...
   430                     ar|as|gcc|ld|nm|objcopy|objdump|ranlib)
   431                         CT_Abort "Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : either needed!"
   432                         ;;
   433                     # Some are conditionnally required
   434                     # Add them in alphabetical (C locale) ordering
   435                     g++)
   436                         # g++ (needed for companion lib), only needed for HOST
   437                         CT_TestAndAbort "Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : either needed!" "${m}" = "HOST"
   438                         ;;
   439                     gcj)
   440                         CT_TestAndAbort "Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : either needed!" "${CT_CC_LANG_JAVA}" = "y"
   441                         ;;
   442                     strip)
   443                         CT_TestAndAbort "Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : either needed!" "${CT_STRIP_ALL_TOOLCHAIN_EXECUTABLES}" = "y"
   444                         ;;
   445                     # If any other is missing, only warn at low level
   446                     *)
   447                         # It does not deserve a WARN level.
   448                         CT_DoLog DEBUG "  Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : not required."
   449                         ;;
   450                 esac
   451             fi
   452         done
   453     done
   454 
   455     # Some makeinfo versions are a pain in [put your most sensible body part here].
   456     # Go ahead with those, by creating a wrapper that keeps partial files, and that
   457     # never fails:
   458     CT_DoLog DEBUG "  'makeinfo' -> '$(CT_Which makeinfo)'"
   459     printf "#${BANG}${CT_SHELL}\n$(CT_Which makeinfo) --force \"\${@}\"\ntrue\n" >"${CT_BUILDTOOLS_PREFIX_DIR}/bin/makeinfo"
   460     CT_DoExecLog ALL chmod 700 "${CT_BUILDTOOLS_PREFIX_DIR}/bin/makeinfo"
   461 
   462     # Carefully add paths in the order we want them:
   463     #  - first try in ${CT_PREFIX_DIR}/bin
   464     #  - then try in ${CT_CC_CORE_SHARED_PREFIX_DIR}/bin
   465     #  - then try in ${CT_CC_CORE_STATIC_PREFIX_DIR}/bin
   466     #  - fall back to searching user's PATH
   467     # Of course, neither cross-native nor canadian can run on BUILD,
   468     # so don't add those PATHs in this case...
   469     case "${CT_TOOLCHAIN_TYPE}" in
   470         cross)  export PATH="${CT_BUILDTOOLS_PREFIX_DIR}/bin:${CT_PREFIX_DIR}/bin:${CT_CC_CORE_SHARED_PREFIX_DIR}/bin:${CT_CC_CORE_STATIC_PREFIX_DIR}/bin:${PATH}";;
   471         canadian) export PATH="${CT_BUILDTOOLS_PREFIX_DIR}/bin:${PATH}";;
   472         *)  ;;
   473     esac
   474 
   475     # Help gcc
   476     CT_CFLAGS_FOR_HOST=
   477     [ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST="${CT_CFLAGS_FOR_HOST} -pipe"
   478 
   479     # Override the configured jobs with what's been given on the command line
   480     [ -n "${CT_JOBS}" ] && CT_PARALLEL_JOBS="${CT_JOBS}"
   481 
   482     # Set the shell to be used by ./configure scripts and by Makefiles (those
   483     # that support it!).
   484     export CONFIG_SHELL="${CT_SHELL}"   # for ./configure
   485     export SHELL="${CT_SHELL}"          # for Makefiles
   486 
   487     # And help make go faster
   488     JOBSFLAGS=
   489     [ ${CT_PARALLEL_JOBS} -ne 0 ] && JOBSFLAGS="${JOBSFLAGS} -j${CT_PARALLEL_JOBS}"
   490     [ ${CT_LOAD} -ne 0 ] && JOBSFLAGS="${JOBSFLAGS} -l${CT_LOAD}"
   491 
   492     # We need to save the real .config with kconfig's value,
   493     # not our mangled .config.2 with arrays.
   494     CT_DoLog EXTRA "Installing user-supplied crosstool-NG configuration"
   495     CT_DoExecLog ALL mkdir -p "${CT_PREFIX_DIR}/bin"
   496     CT_DoExecLog DEBUG install -m 0755 "${CT_LIB_DIR}/scripts/toolchain-config.in" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-ct-ng.config"
   497     CT_DoExecLog DEBUG sed -i -e 's,@@grep@@,"'"${grep}"'",;' "${CT_PREFIX_DIR}/bin/${CT_TARGET}-ct-ng.config"
   498     bzip2 -c -9 .config >>"${CT_PREFIX_DIR}/bin/${CT_TARGET}-ct-ng.config"
   499 
   500     CT_DoStep EXTRA "Dumping internal crosstool-NG configuration"
   501     CT_DoLog EXTRA "Building a toolchain for:"
   502     CT_DoLog EXTRA "  build  = ${CT_REAL_BUILD}"
   503     CT_DoLog EXTRA "  host   = ${CT_REAL_HOST}"
   504     CT_DoLog EXTRA "  target = ${CT_TARGET}"
   505     set |grep -E '^CT_.+=' |sort |CT_DoLog DEBUG
   506     CT_DoLog DEBUG "Other environment:"
   507     printenv |grep -v -E '^CT_.+=' |CT_DoLog DEBUG
   508     CT_EndStep
   509 fi
   510 
   511 if [ -z "${CT_RESTART}" ]; then
   512     CT_DoStep INFO "Retrieving needed toolchain components' tarballs"
   513     do_companion_tools_get
   514     do_kernel_get
   515     do_gmp_get
   516     do_mpfr_get
   517     do_ppl_get
   518     do_cloog_get
   519     do_mpc_get
   520     do_libelf_get
   521     do_binutils_get
   522     do_elf2flt_get
   523     do_sstrip_get
   524     do_cc_get
   525     do_libc_get
   526     do_debug_get
   527     do_test_suite_get
   528     CT_EndStep
   529 
   530     if [ "${CT_ONLY_DOWNLOAD}" != "y" ]; then
   531         if [ "${CT_FORCE_EXTRACT}" = "y" ]; then
   532             CT_DoForceRmdir "${CT_SRC_DIR}"
   533             CT_DoExecLog ALL mkdir -p "${CT_SRC_DIR}"
   534         fi
   535 
   536         if [ "${CT_COMP_TOOLS}" = "y" ]; then
   537           CT_DoStep INFO "Extracting, patching and installing companion tools"
   538           do_companion_tools_extract
   539           do_companion_tools
   540           CT_EndStep
   541         fi
   542 
   543         CT_DoStep INFO "Extracting and patching toolchain components"
   544         do_kernel_extract
   545         do_gmp_extract
   546         do_mpfr_extract
   547         do_ppl_extract
   548         do_cloog_extract
   549         do_mpc_extract
   550         do_libelf_extract
   551         do_binutils_extract
   552         do_elf2flt_extract
   553         do_sstrip_extract
   554         do_cc_extract
   555         do_libc_extract
   556         do_debug_extract
   557         do_test_suite_extract
   558         CT_EndStep
   559     fi
   560 fi
   561 
   562 # Now for the job by itself. Go have a coffee!
   563 if [ "${CT_ONLY_DOWNLOAD}" != "y" -a "${CT_ONLY_EXTRACT}" != "y" ]; then
   564     # Because of CT_RESTART, this becomes quite complex
   565     do_stop=0
   566     prev_step=
   567     [ -n "${CT_RESTART}" ] && do_it=0 || do_it=1
   568     # Aha! CT_STEPS comes from steps.mk!
   569     for step in ${CT_STEPS}; do
   570         if [ ${do_it} -eq 0 ]; then
   571             if [ "${CT_RESTART}" = "${step}" ]; then
   572                 CT_DoLoadState "${step}"
   573                 do_it=1
   574                 do_stop=0
   575             fi
   576         else
   577             CT_DoSaveState ${step}
   578             if [ ${do_stop} -eq 1 ]; then
   579                 CT_DoLog ERROR "Stopping just after step '${prev_step}', as requested."
   580                 exit 0
   581             fi
   582         fi
   583         if [ ${do_it} -eq 1 ]; then
   584             do_${step}
   585             if [ "${CT_STOP}" = "${step}" ]; then
   586                 do_stop=1
   587             fi
   588             if [ "${CT_DEBUG_PAUSE_STEPS}" = "y" ]; then
   589                 CT_DoPause "Step '${step}' finished"
   590             fi
   591         fi
   592         prev_step="${step}"
   593     done
   594 fi
   595 
   596 CT_DoEnd INFO
   597 
   598 # From now-on, it can become impossible to log any time, because
   599 # either we're compressing the log file, or it can become RO any
   600 # moment... Consign all ouptut to oblivion...
   601 CT_DoLog INFO "Finishing installation (may take a few seconds)..."
   602 exec >/dev/null 2>&1
   603 rm -f ${CT_PREFIX_DIR}/build.log.bz2
   604 if [ "${CT_LOG_TO_FILE}" = "y" ]; then
   605     cp "${tmp_log_file}" "${CT_PREFIX_DIR}/build.log"
   606     if [ "${CT_LOG_FILE_COMPRESS}" = y ]; then
   607         bzip2 -9 "${CT_PREFIX_DIR}/build.log"
   608     fi
   609 fi
   610 [ "${CT_INSTALL_DIR_RO}" = "y"  ] && chmod -R a-w "${CT_INSTALL_DIR}"
   611 [ "${CT_TEST_SUITE}" = "y" ] && chmod -R u+w "${CT_TEST_SUITE_DIR}"
   612 
   613 trap - EXIT