scripts/crosstool-NG.sh.in
author Yann Diorcet (diorcet.yann@gmail.com)
Fri Nov 16 14:59:27 2012 +0100 (2012-11-16)
changeset 3115 1c68438f44f7
parent 3111 a9130ff13b19
child 3117 2b64e1b502cd
permissions -rw-r--r--
complibs: introduce generic multi-complibs infrastructure

Use the same method as companion tools for providing generic and
extendable companion libs.

Signed-off-by: Yann Diorcet <diorcet.yann@gmail.com>
Message-Id: <515c5c4635d99ebe4877.1353074410@macbook-smorlat.local>
Patchwork-Id: 199613
     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 . "${CT_LIB_DIR}/scripts/functions"
    22 
    23 # Parse the configuration file
    24 # It has some info about the logging facility, so include it early
    25 . .config.2
    26 # Yes! We can do full logging from now on!
    27 
    28 # If we want an interactive debug-shell, we must ensure these FDs
    29 # are indeed connected to a terminal (and not redirected in any way).
    30 if [ "${CT_DEBUG_INTERACTIVE}" = "y" -a ! \( -t 0 -a -t 6 -a -t 2 \) ]; then
    31     CT_DoLog ERROR "Can't spawn interactive debug-shell,"
    32     CT_DoLog ERROR "because stdout/stderr has been redirected."
    33     exit 1
    34 fi
    35 
    36 # Override the locale early, in case we ever translate crosstool-NG messages
    37 if [ -z "${CT_NO_OVERIDE_LC_MESSAGES}" ]; then
    38     export LC_ALL=C
    39     export LANG=C
    40 fi
    41 
    42 # remove . from PATH since it can cause gcc build failures
    43 CT_SanitizePath
    44 
    45 # Some sanity checks in the environment and needed tools
    46 CT_DoLog INFO "Performing some trivial sanity checks"
    47 CT_TestAndAbort "Don't set LD_LIBRARY_PATH. It screws up the build." -n "${LD_LIBRARY_PATH}"
    48 CT_TestAndAbort "Don't set LIBRARY_PATH. It screws up the build." -n "${LIBRARY_PATH}"
    49 CT_TestAndAbort "Don't set LPATH. It screws up the build." -n "${LPATH}"
    50 CT_TestAndAbort "Don't set CFLAGS. It screws up the build." -n "${CFLAGS}"
    51 CT_TestAndAbort "Don't set CXXFLAGS. It screws up the build." -n "${CXXFLAGS}"
    52 CT_Test "GREP_OPTIONS screws up the build. Resetting." -n "${GREP_OPTIONS}"
    53 export GREP_OPTIONS=
    54 # Workaround against openSUSE 12.1 that breaks ./configure for cross-compilation:
    55 export CONFIG_SITE=
    56 
    57 # Some sanity checks on paths content
    58 for d in            \
    59     LOCAL_TARBALLS  \
    60     WORK            \
    61     PREFIX          \
    62     INSTALL         \
    63     ; do
    64         eval dir="\${CT_${d}_DIR}"
    65         case "${dir}" in
    66             *" "*)
    67                 CT_Abort "'CT_${d}_DIR'='${dir}' contains a space in it.\nDon't use spaces in paths, it breaks things."
    68                 ;;
    69         esac
    70 done
    71 
    72 # Where will we work?
    73 CT_WORK_DIR="${CT_WORK_DIR:-${CT_TOP_DIR}/.build}"
    74 CT_DoExecLog ALL mkdir -p "${CT_WORK_DIR}"
    75 CT_DoExecLog DEBUG rm -f "${CT_WORK_DIR}/backtrace"
    76 
    77 # Check build file system case-sensitiveness
    78 CT_DoExecLog DEBUG touch "${CT_WORK_DIR}/foo"
    79 CT_TestAndAbort "Your file system in '${CT_WORK_DIR}' is *not* case-sensitive!" -f "${CT_WORK_DIR}/FOO"
    80 CT_DoExecLog DEBUG rm -f "${CT_WORK_DIR}/foo"
    81 
    82 # Check the user is using an existing SHELL to be used by ./configure and Makefiles
    83 CT_TestOrAbort "The CONFIG_SHELL '${CT_CONFIG_SHELL}' is not valid" -f "${CT_CONFIG_SHELL}" -a -x "${CT_CONFIG_SHELL}"
    84 
    85 # Create the bin-override early
    86 # Contains symlinks to the tools found by ./configure
    87 # Note: CT_DoLog and CT_DoExecLog do not use any of those tool, so
    88 # they can be safely used
    89 CT_TOOLS_OVERIDE_DIR="${CT_WORK_DIR}/tools"
    90 CT_DoLog DEBUG "Creating bin-override for tools in '${CT_TOOLS_OVERIDE_DIR}'"
    91 CT_DoExecLog DEBUG mkdir -p "${CT_TOOLS_OVERIDE_DIR}/bin"
    92 cat "${CT_LIB_DIR}/paths.sh" |while read trash line; do
    93     tool="${line%%=*}"
    94     path="${line#*=}"
    95     CT_DoLog DEBUG "Creating script-override for '${tool}' -> '${path}'"
    96     # Note: we need to supress the " in the path because
    97     # there can be arguments in there (thanks autostuff...)
    98     printf "#${BANG}${CT_CONFIG_SHELL}\nexec ${path//\"/} \"\${@}\"\n" >"${CT_TOOLS_OVERIDE_DIR}/bin/${tool}"
    99     CT_DoExecLog ALL chmod 700 "${CT_TOOLS_OVERIDE_DIR}/bin/${tool}"
   100 done
   101 export PATH="${CT_TOOLS_OVERIDE_DIR}/bin:${PATH}"
   102 
   103 # Start date. Can't be done until we know the locale
   104 # Also requires the bin-override tools
   105 CT_STAR_DATE=$(CT_DoDate +%s%N)
   106 CT_STAR_DATE_HUMAN=$(CT_DoDate +%Y%m%d.%H%M%S)
   107 
   108 # Log real begining of build, now
   109 CT_DoLog INFO "Build started ${CT_STAR_DATE_HUMAN}"
   110 
   111 # We really need to extract from ,config and not .config.2, as we
   112 # do want the kconfig's values, not our mangled config with arrays.
   113 CT_DoStep DEBUG "Dumping user-supplied crosstool-NG configuration"
   114 CT_DoExecLog DEBUG grep -E '^(# |)CT_' .config
   115 CT_EndStep
   116 
   117 CT_DoLog DEBUG "Unsetting and unexporting MAKEFLAGS"
   118 unset MAKEFLAGS
   119 export MAKEFLAGS
   120 
   121 CT_DoLog INFO "Building environment variables"
   122 
   123 # Include sub-scripts instead of calling them: that way, we do not have to
   124 # export any variable, nor re-parse the configuration and functions files.
   125 . "${CT_LIB_DIR}/scripts/build/internals.sh"
   126 . "${CT_LIB_DIR}/scripts/build/arch/${CT_ARCH}.sh"
   127 . "${CT_LIB_DIR}/scripts/build/companion_tools.sh"
   128 . "${CT_LIB_DIR}/scripts/build/kernel/${CT_KERNEL}.sh"
   129 . "${CT_LIB_DIR}/scripts/build/companion_libs.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 # Note about HOST_COMPLIBS_DIR: it's always gonna be in the buildtools dir, or a
   167 # sub-dir. So we won't have to save/restore it, not even create it.
   168 # In case of cross or native, host-complibs are used for build-complibs;
   169 # in case of canadian or cross-native, host-complibs are specific
   170 case "${CT_TOOLCHAIN_TYPE}" in
   171     native|cross)
   172         CT_HOST_COMPLIBS_DIR="${CT_BUILDTOOLS_PREFIX_DIR}"
   173         ;;
   174     canadian|cross-native)
   175         CT_HOST_COMPLIBS_DIR="${CT_BUILDTOOLS_PREFIX_DIR}/complibs-host"
   176         ;;
   177 esac
   178 
   179 # Compute test suite install directory
   180 CT_TEST_SUITE_DIR=${CT_INSTALL_DIR}/test-suite
   181 
   182 # We must ensure that we can restart if asked for!
   183 if [ -n "${CT_RESTART}" -a ! -d "${CT_STATE_DIR}"  ]; then
   184     CT_DoLog ERROR "You asked to restart a non-restartable build"
   185     CT_DoLog ERROR "This happened because you didn't set CT_DEBUG_CT_SAVE_STEPS"
   186     CT_DoLog ERROR "in the config options for the previous build, or the state"
   187     CT_DoLog ERROR "directory for the previous build was deleted."
   188     CT_Abort "I will stop here to avoid any carnage"
   189 fi
   190 
   191 # If the local tarball directory does not exist, say so, and don't try to save there!
   192 if [    "${CT_SAVE_TARBALLS}" = "y"     \
   193      -a ! -d "${CT_LOCAL_TARBALLS_DIR}" ]; then
   194     CT_DoLog WARN "Directory '${CT_LOCAL_TARBALLS_DIR}' does not exist."
   195     CT_DoLog WARN "Will not save downloaded tarballs to local storage."
   196     CT_SAVE_TARBALLS=
   197 fi
   198 
   199 # Check now if we can write to the destination directory:
   200 if [ -d "${CT_INSTALL_DIR}" ]; then
   201     CT_TestAndAbort "Destination directory '${CT_INSTALL_DIR}' is not removable" ! -w $(dirname "${CT_INSTALL_DIR}")
   202 fi
   203 
   204 # Good, now grab a bit of informations on the system we're being run on,
   205 # just in case something goes awok, and it's not our fault:
   206 CT_SYS_USER=$(id -un)
   207 CT_SYS_HOSTNAME=$(hostname -f 2>/dev/null || true)
   208 # Hmmm. Some non-DHCP-enabled machines do not have an FQDN... Fall back to node name.
   209 CT_SYS_HOSTNAME="${CT_SYS_HOSTNAME:-$(uname -n)}"
   210 CT_SYS_KERNEL=$(uname -s)
   211 CT_SYS_REVISION=$(uname -r)
   212 CT_SYS_OS=$(uname -s)
   213 CT_SYS_MACHINE=$(uname -m)
   214 CT_SYS_PROCESSOR=$(uname -p)
   215 CT_SYS_GCC=$(gcc -dumpversion)
   216 CT_SYS_TARGET=$(CT_DoConfigGuess)
   217 CT_TOOLCHAIN_ID="crosstool-${CT_VERSION} build ${CT_STAR_DATE_HUMAN} by ${CT_SYS_USER}@${CT_SYS_HOSTNAME}"
   218 
   219 CT_DoLog EXTRA "Preparing working directories"
   220 
   221 # Ah! The build directory shall be eradicated, even if we restart!
   222 # Ditto for the build tools install dir
   223 CT_DoForceRmdir "${CT_BUILD_DIR}" "${CT_BUILDTOOLS_PREFIX_DIR}"
   224 
   225 # Don't eradicate directories if we need to restart
   226 if [ -z "${CT_RESTART}" ]; then
   227     # Get rid of pre-existing installed toolchain and previous build directories.
   228     if [ "${CT_FORCE_DOWNLOAD}" = "y" -a -d "${CT_TARBALLS_DIR}" ]; then
   229         CT_DoForceRmdir "${CT_TARBALLS_DIR}"
   230     fi
   231     if [ "${CT_FORCE_EXTRACT}" = "y" -a -d "${CT_SRC_DIR}" ]; then
   232         CT_DoForceRmdir "${CT_SRC_DIR}"
   233     fi
   234     if [ -d "${CT_INSTALL_DIR}" -a "${CT_RM_RF_PREFIX_DIR}" = "y" ]; then
   235         CT_DoForceRmdir "${CT_INSTALL_DIR}"
   236     fi
   237     # In case we start anew, get rid of the previously saved state directory
   238     if [ -d "${CT_STATE_DIR}" ]; then
   239         CT_DoForceRmdir "${CT_STATE_DIR}"
   240     fi
   241 fi
   242 
   243 # Create the directories we'll use, even if restarting: it does no harm to
   244 # create already existent directories, and CT_BUILD_DIR needs to be created
   245 # anyway
   246 CT_DoExecLog ALL mkdir -p "${CT_TARBALLS_DIR}"
   247 CT_DoExecLog ALL mkdir -p "${CT_SRC_DIR}"
   248 CT_DoExecLog ALL mkdir -p "${CT_BUILD_DIR}"
   249 CT_DoExecLog ALL mkdir -p "${CT_BUILDTOOLS_PREFIX_DIR}/bin"
   250 CT_DoExecLog ALL mkdir -p "${CT_CONFIG_DIR}"
   251 CT_DoExecLog ALL mkdir -p "${CT_INSTALL_DIR}"
   252 CT_DoExecLog ALL mkdir -p "${CT_PREFIX_DIR}"
   253 CT_DoExecLog ALL mkdir -p "${CT_HOST_COMPLIBS_DIR}"
   254 
   255 # Only create the state dir if asked for a restartable build
   256 [ -n "${CT_DEBUG_CT_SAVE_STEPS}" ] && CT_DoExecLog ALL mkdir -p "${CT_STATE_DIR}"
   257 
   258 # Check install file system case-sensitiveness
   259 CT_DoExecLog DEBUG touch "${CT_PREFIX_DIR}/foo"
   260 CT_TestAndAbort "Your file system in '${CT_PREFIX_DIR}' is *not* case-sensitive!" -f "${CT_PREFIX_DIR}/FOO"
   261 CT_DoExecLog DEBUG rm -f "${CT_PREFIX_DIR}/foo"
   262 
   263 # Kludge: CT_INSTALL_DIR and CT_PREFIX_DIR might have grown read-only if
   264 # the previous build was successful.
   265 CT_DoExecLog ALL chmod -R u+w "${CT_INSTALL_DIR}" "${CT_PREFIX_DIR}"
   266 
   267 # Setting up the rest of the environment only if not restarting
   268 if [ -z "${CT_RESTART}" ]; then
   269     case "${CT_SYSROOT_NAME}" in
   270         "")     CT_SYSROOT_NAME="sysroot";;
   271         .)      CT_Abort "Sysroot name is set to '.' which is forbidden";;
   272         *' '*)  CT_Abort "Sysroot name contains forbidden space(s): '${CT_SYSROOT_NAME}'";;
   273         */*)    CT_Abort "Sysroot name contains forbidden slash(es): '${CT_SYSROOT_NAME}'";;
   274     esac
   275 
   276     # Arrange paths depending on wether we use sysroot or not.
   277     if [ "${CT_USE_SYSROOT}" = "y" ]; then
   278         CT_SYSROOT_REL_DIR="${CT_SYSROOT_DIR_PREFIX:+${CT_SYSROOT_DIR_PREFIX}/}${CT_SYSROOT_NAME}"
   279         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/${CT_SYSROOT_REL_DIR}"
   280         CT_DEBUGROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/${CT_SYSROOT_DIR_PREFIX}/debug-root"
   281         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/usr/include"
   282         CT_SanitiseVarDir CT_SYSROOT_REL_DIR CT_SYSROOT_DIR CT_DEBUGROOT_DIR CT_HEADERS_DIR 
   283         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   284         CC_CORE_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   285         CC_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   286         LIBC_SYSROOT_ARG=""
   287         # glibc's prefix must be exactly /usr, else --with-sysroot'd gcc will get
   288         # confused when $sysroot/usr/include is not present.
   289         # Note: --prefix=/usr is magic!
   290         # See http://www.gnu.org/software/libc/FAQ.html#s-2.2
   291     else
   292         # plain old way. All libraries in prefix/target/lib
   293         CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}"
   294         CT_DEBUGROOT_DIR="${CT_SYSROOT_DIR}"
   295         CT_HEADERS_DIR="${CT_SYSROOT_DIR}/include"
   296         CT_SanitiseVarDir CT_SYSROOT_DIR CT_DEBUGROOT_DIR CT_HEADERS_DIR 
   297         # hack!  Always use --with-sysroot for binutils.
   298         # binutils 2.14 and later obey it, older binutils ignore it.
   299         # Lets you build a working 32->64 bit cross gcc
   300         BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
   301         # Use --with-headers, else final gcc will define disable_glibc while
   302         # building libgcc, and you'll have no profiling
   303         CC_CORE_SYSROOT_ARG="--without-headers"
   304         CC_SYSROOT_ARG="--with-headers=${CT_HEADERS_DIR}"
   305         LIBC_SYSROOT_ARG="prefix="
   306     fi
   307     CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}"
   308     CT_DoExecLog ALL mkdir -p "${CT_DEBUGROOT_DIR}"
   309 
   310     # Prepare the 'lib' directories in sysroot, else the ../lib64 hack used by
   311     # 32 -> 64 bit crosscompilers won't work, and build of final gcc will fail
   312     # with: "ld: cannot open crti.o: No such file or directory"
   313     # Also prepare the lib directory in the install dir, else some 64 bit archs
   314     # won't build
   315     CT_DoExecLog ALL mkdir -p "${CT_PREFIX_DIR}/lib"
   316     CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}/lib"
   317     CT_DoExecLog ALL mkdir -p "${CT_SYSROOT_DIR}/usr/lib"
   318     CT_DoExecLog ALL mkdir -p "${CT_HEADERS_DIR}"
   319 
   320     if [ "${CT_USE_SYSROOT}" = "y" ]; then
   321         # Prevent gcc from installing its libraries outside of the sysroot
   322         CT_Pushd "${CT_PREFIX_DIR}/${CT_TARGET}"
   323         CT_DoExecLog ALL ln -sf "${CT_SYSROOT_REL_DIR}/lib" "lib"
   324         CT_Popd
   325     fi
   326 
   327     # Since we're *not* multilib on the target side, we want all the
   328     # libraries to end up in "lib".  We create "lib64" (for 64-bit
   329     # build or host architectures) and "lib32" (for 32-bit emulation
   330     # on 64-bit) as symlinks to "lib".
   331     #
   332     # Not all of these symlinks are necessary, but better safe than
   333     # sorry. They are summarily removed by build/internals.sh:do_finish.
   334     for d in                            \
   335         "${CT_PREFIX_DIR}"              \
   336         "${CT_SYSROOT_DIR}"             \
   337         "${CT_SYSROOT_DIR}/usr"         \
   338         "${CT_PREFIX_DIR}/${CT_TARGET}" \
   339     ; do
   340         CT_DoExecLog ALL ln -sf "lib" "${d}/lib32"
   341         CT_DoExecLog ALL ln -sf "lib" "${d}/lib64"
   342     done
   343 
   344     # Determine build system if not set by the user
   345     if [ -z "${CT_BUILD}" ]; then
   346         CT_BUILD=$(CT_DoConfigGuess)
   347     fi
   348 
   349     # Prepare mangling patterns to later modify BUILD and HOST (see below)
   350     case "${CT_TOOLCHAIN_TYPE}" in
   351         cross)
   352             # A cross-compiler runs on the same machine it is built on
   353             CT_HOST="${CT_BUILD}"
   354             build_mangle="build_"
   355             host_mangle="build_"
   356             target_mangle=""
   357             install_build_tools_for="BUILD HOST"
   358             ;;
   359         canadian)
   360             build_mangle="build_"
   361             host_mangle="host_"
   362             target_mangle=""
   363             install_build_tools_for="BUILD HOST"
   364             ;;
   365         *)  CT_Abort "No code for '${CT_TOOLCHAIN_TYPE}' toolchain type!"
   366             ;;
   367     esac
   368 
   369     # Save the real tuples to generate shell-wrappers to the real tools
   370     CT_REAL_BUILD="${CT_BUILD}"
   371     CT_REAL_HOST="${CT_HOST}"
   372     CT_REAL_TARGET="${CT_TARGET}"
   373 
   374     # Canonicalise CT_BUILD and CT_HOST
   375     # Not only will it give us full-qualified tuples, but it will also ensure
   376     # that they are valid tuples (in case of typo with user-provided tuples)
   377     # That's way better than trying to rewrite config.sub ourselves...
   378     # CT_TARGET is already made canonical in CT_DoBuildTargetTuple
   379     CT_BUILD=$(CT_DoConfigSub "${CT_BUILD}")
   380     CT_HOST=$(CT_DoConfigSub "${CT_HOST}")
   381 
   382     # Modify BUILD and HOST so that gcc always generate a cross-compiler
   383     # even if any of the build, host or target machines are the same.
   384     # NOTE: we'll have to mangle the (BUILD|HOST)->TARGET x-compiler to
   385     #       support canadain build, later...
   386     CT_BUILD="${CT_BUILD/-/-${build_mangle}}"
   387     CT_HOST="${CT_HOST/-/-${host_mangle}}"
   388     CT_TARGET="${CT_TARGET/-/-${target_mangle}}"
   389 
   390     # Now we have mangled our BUILD and HOST tuples, we must fake the new
   391     # cross-tools for those mangled tuples.
   392     CT_DoLog DEBUG "Making build system tools available"
   393     for m in ${install_build_tools_for}; do
   394         r="CT_REAL_${m}"
   395         v="CT_${m}"
   396         p="CT_${m}_PREFIX"
   397         s="CT_${m}_SUFFIX"
   398         if [ -n "${!p}" ]; then
   399             t="${!p}"
   400         else
   401             t="${!r}-"
   402         fi
   403 
   404         for tool in ar as dlltool gcc g++ gcj gnatbind gnatmake ld nm objcopy objdump ranlib strip windres; do
   405             # First try with prefix + suffix
   406             # Then try with prefix only
   407             # Then try with suffix only, but only for BUILD, and HOST iff REAL_BUILD == REAL_HOST
   408             # Finally try with neither prefix nor suffix, but only for BUILD, and HOST iff REAL_BUILD == REAL_HOST
   409             # This is needed, because some tools have a prefix and
   410             # a suffix (eg. gcc), while others may have only one,
   411             # or even none (eg. binutils)
   412             where=$(CT_Which "${t}${tool}${!s}")
   413             [ -z "${where}" ] && where=$(CT_Which "${t}${tool}")
   414             if [    -z "${where}"                         \
   415                  -a \(    "${m}" = "BUILD"                \
   416                        -o "${CT_REAL_BUILD}" = "${!r}" \) ]; then
   417                 where=$(CT_Which "${tool}${!s}")
   418             fi
   419             if [ -z "${where}"                            \
   420                  -a \(    "${m}" = "BUILD"                \
   421                        -o "${CT_REAL_BUILD}" = "${!r}" \) ]; then
   422                 where=$(CT_Which "${tool}")
   423             fi
   424 
   425             # Not all tools are available for all platforms, but some are really,
   426             # bally needed
   427             if [ -n "${where}" ]; then
   428                 CT_DoLog DEBUG "  '${!v}-${tool}' -> '${where}'"
   429                 printf "#${BANG}${CT_CONFIG_SHELL}\nexec '${where}' \"\${@}\"\n" >"${CT_BUILDTOOLS_PREFIX_DIR}/bin/${!v}-${tool}"
   430                 CT_DoExecLog ALL chmod 700 "${CT_BUILDTOOLS_PREFIX_DIR}/bin/${!v}-${tool}"
   431             else
   432                 case "${tool}" in
   433                     # We'll at least need some of them...
   434                     ar|as|gcc|ld|nm|objcopy|objdump|ranlib)
   435                         CT_Abort "Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : either needed!"
   436                         ;;
   437                     # Some are conditionnally required
   438                     # Add them in alphabetical (C locale) ordering
   439                     g++)
   440                         # g++ (needed for companion lib), only needed for HOST
   441                         CT_TestAndAbort "Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : either needed!" "${m}" = "HOST"
   442                         ;;
   443                     gcj)
   444                         CT_TestAndAbort "Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : either needed!" "${CT_CC_LANG_JAVA}" = "y"
   445                         ;;
   446                     strip)
   447                         CT_TestAndAbort "Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : either needed!" "${CT_STRIP_ALL_TOOLCHAIN_EXECUTABLES}" = "y"
   448                         ;;
   449                     # If any other is missing, only warn at low level
   450                     *)
   451                         # It does not deserve a WARN level.
   452                         CT_DoLog DEBUG "  Missing: '${t}${tool}${!s}' or '${t}${tool}' or '${tool}' : not required."
   453                         ;;
   454                 esac
   455             fi
   456         done
   457     done
   458 
   459     # Some makeinfo versions are a pain in [put your most sensible body part here].
   460     # Go ahead with those, by creating a wrapper that keeps partial files, and that
   461     # never fails:
   462     CT_DoLog DEBUG "  'makeinfo' -> '$(CT_Which makeinfo)'"
   463     printf "#${BANG}${CT_CONFIG_SHELL}\n$(CT_Which makeinfo) --force \"\${@}\"\ntrue\n" >"${CT_BUILDTOOLS_PREFIX_DIR}/bin/makeinfo"
   464     CT_DoExecLog ALL chmod 700 "${CT_BUILDTOOLS_PREFIX_DIR}/bin/makeinfo"
   465 
   466     # Carefully add paths in the order we want them:
   467     #  - first try in ${CT_PREFIX_DIR}/bin
   468     #  - then try the buildtools dir
   469     #  - fall back to searching user's PATH
   470     # Of course, neither cross-native nor canadian can run on BUILD,
   471     # so don't add those PATHs in this case...
   472     case "${CT_TOOLCHAIN_TYPE}" in
   473         cross)  export PATH="${CT_PREFIX_DIR}/bin:${CT_BUILDTOOLS_PREFIX_DIR}/bin:${PATH}";;
   474         canadian) export PATH="${CT_BUILDTOOLS_PREFIX_DIR}/bin:${PATH}";;
   475         *)  ;;
   476     esac
   477 
   478     # Now we know our host and where to find the host tools, we can check
   479     # if static link was requested, but only if it was requested
   480     if [ "${CT_WANTS_STATIC_LINK}" = "y" ]; then
   481         tmp="${CT_BUILD_DIR}/.static-test"
   482         if ! "${CT_HOST}-gcc" -xc - -static -o "${tmp}" >/dev/null 2>&1 <<-_EOF_
   483 				int main() { return 0; }
   484 			_EOF_
   485         then
   486             CT_Abort "Static linking impossible on the host system '${CT_HOST}'"
   487         fi
   488         rm -f "${tmp}"
   489     fi
   490 
   491     # Help gcc
   492     # Explicitly optimise, else the lines below will overide the
   493     # package's default optimisation flags
   494     CT_CFLAGS_FOR_HOST="-O2 -g"
   495     [ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST+=" -pipe"
   496     CT_CFLAGS_FOR_HOST+=" ${CT_EXTRA_FLAGS_FOR_HOST}"
   497 
   498     # Set the shell to be used by ./configure scripts and by Makefiles (those
   499     # that support it!).
   500     export CONFIG_SHELL="${CT_CONFIG_SHELL}"    # for ./configure
   501     export SHELL="${CT_CONFIG_SHELL}"           # for Makefiles
   502 
   503     # And help make go faster
   504     JOBSFLAGS=
   505     # Override the configured jobs with what's been given on the command line
   506     [ -n "${CT_JOBS}" ] && CT_PARALLEL_JOBS="${CT_JOBS}"
   507     # Use the number of processors+1 when automatically setting the number of
   508     # parallel jobs.  Fall back to 1 if the host doesn't use GLIBC.
   509     AUTO_JOBS=$((`getconf _NPROCESSORS_ONLN 2> /dev/null || echo 0` + 1))
   510     [ ${CT_PARALLEL_JOBS} -eq 0 ] && JOBSFLAGS="${JOBSFLAGS} -j${AUTO_JOBS}"
   511     [ ${CT_PARALLEL_JOBS} -gt 0 ] && JOBSFLAGS="${JOBSFLAGS} -j${CT_PARALLEL_JOBS}"
   512     [ ${CT_LOAD} -ne 0 ] && JOBSFLAGS="${JOBSFLAGS} -l${CT_LOAD}"
   513 
   514     # We need to save the real .config with kconfig's value,
   515     # not our mangled .config.2 with arrays.
   516     CT_DoLog EXTRA "Installing user-supplied crosstool-NG configuration"
   517     CT_DoExecLog ALL mkdir -p "${CT_PREFIX_DIR}/bin"
   518     CT_DoExecLog DEBUG install -m 0755 "${CT_LIB_DIR}/scripts/toolchain-config.in" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-ct-ng.config"
   519     CT_DoExecLog DEBUG sed -i -e 's,@@grep@@,"'"${grep}"'",;' "${CT_PREFIX_DIR}/bin/${CT_TARGET}-ct-ng.config"
   520     bzip2 -c -9 .config >>"${CT_PREFIX_DIR}/bin/${CT_TARGET}-ct-ng.config"
   521 
   522     CT_DoStep EXTRA "Dumping internal crosstool-NG configuration"
   523     CT_DoLog EXTRA "Building a toolchain for:"
   524     CT_DoLog EXTRA "  build  = ${CT_REAL_BUILD}"
   525     CT_DoLog EXTRA "  host   = ${CT_REAL_HOST}"
   526     CT_DoLog EXTRA "  target = ${CT_TARGET}"
   527     set |grep -E '^CT_.+=' |sort |CT_DoLog DEBUG
   528     CT_DoLog DEBUG "Other environment:"
   529     printenv |grep -v -E '^CT_.+=' |CT_DoLog DEBUG
   530     CT_EndStep
   531 fi
   532 
   533 if [ -z "${CT_RESTART}" ]; then
   534     CT_DoStep INFO "Retrieving needed toolchain components' tarballs"
   535     do_companion_tools_get
   536     do_kernel_get
   537     do_companion_libs_get
   538     do_binutils_get
   539     do_elf2flt_get
   540     do_sstrip_get
   541     do_cc_get
   542     do_libc_get
   543     do_debug_get
   544     do_test_suite_get
   545     CT_EndStep
   546 
   547     if [ "${CT_ONLY_DOWNLOAD}" != "y" ]; then
   548         if [ "${CT_FORCE_EXTRACT}" = "y" ]; then
   549             CT_DoForceRmdir "${CT_SRC_DIR}"
   550             CT_DoExecLog ALL mkdir -p "${CT_SRC_DIR}"
   551         fi
   552 
   553         if [ "${CT_COMP_TOOLS}" = "y" ]; then
   554           CT_DoStep INFO "Extracting, patching and installing companion tools"
   555           do_companion_tools_extract
   556           do_companion_tools
   557           CT_EndStep
   558         fi
   559 
   560         CT_DoStep INFO "Extracting and patching toolchain components"
   561         do_kernel_extract
   562         do_companion_libs_extract
   563         do_binutils_extract
   564         do_elf2flt_extract
   565         do_sstrip_extract
   566         do_cc_extract
   567         do_libc_extract
   568         do_debug_extract
   569         do_test_suite_extract
   570         CT_EndStep
   571     fi
   572 fi
   573 
   574 # Now for the job by itself. Go have a coffee!
   575 if [ "${CT_ONLY_DOWNLOAD}" != "y" -a "${CT_ONLY_EXTRACT}" != "y" ]; then
   576     # Because of CT_RESTART, this becomes quite complex
   577     do_stop=0
   578     prev_step=
   579     [ -n "${CT_RESTART}" ] && do_it=0 || do_it=1
   580     # Aha! CT_STEPS comes from steps.mk!
   581     for step in ${CT_STEPS}; do
   582         if [ ${do_it} -eq 0 ]; then
   583             if [ "${CT_RESTART}" = "${step}" ]; then
   584                 CT_DoLoadState "${step}"
   585                 do_it=1
   586                 do_stop=0
   587             fi
   588         else
   589             CT_DoSaveState ${step}
   590             if [ ${do_stop} -eq 1 ]; then
   591                 CT_DoLog ERROR "Stopping just after step '${prev_step}', as requested."
   592                 exit 0
   593             fi
   594         fi
   595         if [ ${do_it} -eq 1 ]; then
   596             ( do_${step} )
   597             # POSIX 1003.1-2008 does not say if "set -e" should catch a
   598             # sub-shell ending with !0. bash-3 does not, while bash-4 does,
   599             # so the following line is for bash-3; bash-4 would choke above.
   600             [ $? -eq 0 ]
   601             if [ "${CT_STOP}" = "${step}" ]; then
   602                 do_stop=1
   603             fi
   604             if [ "${CT_DEBUG_PAUSE_STEPS}" = "y" ]; then
   605                 CT_DoPause "Step '${step}' finished"
   606             fi
   607         fi
   608         prev_step="${step}"
   609     done
   610 fi
   611 
   612 CT_DoEnd INFO
   613 
   614 # From now-on, it can become impossible to log any time, because
   615 # either we're compressing the log file, or it can become RO any
   616 # moment... Consign all ouptut to oblivion...
   617 CT_DoLog INFO "Finishing installation (may take a few seconds)..."
   618 exec >/dev/null 2>&1
   619 rm -f ${CT_PREFIX_DIR}/build.log.bz2
   620 if [ "${CT_LOG_TO_FILE}" = "y" ]; then
   621     cp "${tmp_log_file}" "${CT_PREFIX_DIR}/build.log"
   622     if [ "${CT_LOG_FILE_COMPRESS}" = y ]; then
   623         bzip2 -9 "${CT_PREFIX_DIR}/build.log"
   624     fi
   625 fi
   626 [ "${CT_INSTALL_DIR_RO}" = "y"  ] && chmod -R a-w "${CT_INSTALL_DIR}"
   627 [ "${CT_TEST_SUITE}" = "y" ] && chmod -R u+w "${CT_TEST_SUITE_DIR}"
   628 
   629 trap - EXIT