2 # Copyright 2007 Yann E. MORIN
3 # Licensed under the GPL v2. See COPYING in the root of this package.
5 # This is the main entry point to crosstool
7 # - download, extract and patch the toolchain components
8 # - build and install each components in turn
9 # - and eventually test the resulting toolchain
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 checks for needed tools. It eventually calls the main build script.
15 # User must set CT_TOP_DIR in is environment!
16 # Once we can build out-of-tree, then this will have to go.
17 if [ -z "${CT_TOP_DIR}" -o ! -d "${CT_TOP_DIR}" ]; then
18 # We don't have the functions right now, because we don't have CT_TOP_DIR.
19 # Do the print stuff by hand:
20 echo "CT_TOP_DIR not set. You must set CT_TOP_DIR to the top directory where crosstool is installed."
24 # Parse the common functions
25 . "${CT_TOP_DIR}/scripts/functions"
27 CT_STAR_DATE=`CT_DoDate +%s%N`
28 CT_STAR_DATE_HUMAN=`CT_DoDate +%Y%m%d.%H%M%S`
30 # Log to a temporary file until we have built our environment
31 CT_ACTUAL_LOG_FILE="${CT_TOP_DIR}/$$.log"
33 # CT_TOP_DIR should be an absolute path.
34 CT_TOP_DIR="`CT_MakeAbsolutePath \"${CT_TOP_DIR}\"`"
36 # Parse the configuration file
37 CT_TestOrAbort "Configuration file not found. Please create one." -f "${CT_TOP_DIR}/.config"
38 . "${CT_TOP_DIR}/.config"
40 # The progress bar indicator is asked for
41 if [ "${CT_LOG_PROGRESS_BAR}" = "y" ]; then
43 local str=`CT_DoDate +%s`
44 local elapsed=$((str-(CT_STAR_DATE/(1000*1000*1000))))
45 printf "[%02d:%02d]" $((elapsed/60)) $((elapsed%60))
49 [ $((cpt/10)) -eq 0 ] && echo -en "`_CT_PROG_BAR_DATE` /"
50 [ $((cpt/10)) -eq 1 ] && echo -en "`_CT_PROG_BAR_DATE` -"
51 [ $((cpt/10)) -eq 2 ] && echo -en "`_CT_PROG_BAR_DATE` \\"
52 [ $((cpt/10)) -eq 3 ] && echo -en "`_CT_PROG_BAR_DATE` |"
55 CT_PROG_BAR=_CT_PROG_BAR
56 export -f _CT_PROG_BAR
61 # Apply the color scheme if needed
62 if [ "${CT_LOG_USE_COLORS}" = "y" ]; then
63 CT_ERROR_COLOR="${_A_NOR}${_A_BRI}${_F_RED}"
64 CT_WARN_COLOR="${_A_NOR}${_A_BRI}${_F_YEL}"
65 CT_INFO_COLOR="${_A_NOR}${_A_BRI}${_F_GRN}"
66 CT_EXTRA_COLOR="${_A_NOR}${_A_DIM}${_F_GRN}"
67 CT_DEBUG_COLOR="${_A_NOR}${_A_DIM}${_F_WHI}"
68 CT_NORMAL_COLOR="${_A_NOR}"
78 # Yes! We can do full logging from now on!
79 CT_DoLog INFO "Build started ${CT_STAR_DATE_HUMAN}"
82 renice ${CT_NICE} $$ |CT_DoLog DEBUG
84 # Some sanity checks in the environment and needed tools
85 CT_DoLog INFO "Checking environment sanity"
87 # Enable known ordering of files in directory listings:
88 CT_Test "Crosstool-NG might not work as expected with LANG=\"${LANG}\"" -n "${LANG}"
89 case "${LC_COLLATE},${LC_ALL}" in
90 # These four combinations are known to sort files in the correct order:
95 # Anything else is destined to be borked if not gracefuly handled:
96 *) CT_DoLog WARN "Either LC_COLLATE=\"${LC_COLLATE}\" or LC_ALL=\"${LC_ALL}\" is not supported."
97 export LC_ALL=`locale -a |egrep "^(fr_FR|en_US)" |head -n 1`
98 CT_TestOrAbort "Neither en_US* nor fr_FR* locales found on your system." -n "${LC_ALL}"
99 CT_DoLog WARN "Forcing to known working LC_ALL=\"${LC_ALL}\"."
103 # Other environment sanity checks
104 CT_TestAndAbort "Don't set LD_LIBRARY_PATH. It screws up the build." -n "${LD_LIBRARY_PATH}"
105 CT_TestAndAbort "Don't set CFLAGS. It screws up the build." -n "${CFLAGS}"
106 CT_TestAndAbort "Don't set CXXFLAGS. It screws up the build." -n "${CXXFLAGS}"
107 CT_Test "GREP_OPTIONS screws up the build. Resetting." -n "${GREP_OPTIONS}"
114 CT_DoStep DEBUG "Dumping crosstool-NG configuration"
115 cat ${CT_TOP_DIR}/.config |egrep '^(# |)CT_' |CT_DoLog DEBUG
118 CT_DoLog INFO "Building environment variables"
120 # Target triplet: CT_TARGET needs a little love:
121 CT_DoBuildTargetTriplet
123 # Now, build up the variables from the user-configured options.
124 CT_KERNEL_FILE="${CT_KERNEL}-${CT_KERNEL_VERSION}"
125 CT_BINUTILS_FILE="binutils-${CT_BINUTILS_VERSION}"
126 if [ "${CT_CC_USE_CORE}" != "y" ]; then
127 CT_CC_CORE="${CT_CC}"
128 CT_CC_CORE_VERSION="${CT_CC_VERSION}"
129 CT_CC_CORE_EXTRA_CONFIG="${CT_CC_EXTRA_CONFIG}"
131 CT_CC_CORE_FILE="${CT_CC_CORE}-${CT_CC_CORE_VERSION}"
132 CT_CC_FILE="${CT_CC}-${CT_CC_VERSION}"
133 CT_LIBC_FILE="${CT_LIBC}-${CT_LIBC_VERSION}"
134 [ "${CT_ARCH_FLOAT_SW_LIBFLOAT}" = "y" ] && CT_LIBFLOAT_FILE="libfloat-990616"
136 # Kludge: If any of the configured options needs CT_TARGET or CT_TOP_DIR,
137 # then rescan the options file now:
138 . "${CT_TOP_DIR}/.config"
140 # Some more sanity checks now that we have all paths set up
141 case "${CT_TARBALLS_DIR},${CT_SRC_DIR},${CT_BUILD_DIR},${CT_PREFIX_DIR},${CT_INSTALL_DIR}" in
142 *" "*) CT_Abort "Don't use spaces in paths, it breaks things.";;
145 # Note: we'll always install the core compiler in its own directory, so as to
146 # not mix the two builds: core and final. Anyway, its generic, wether we use
147 # a different compiler as core, or not.
148 CT_CC_CORE_PREFIX_DIR="${CT_BUILD_DIR}/${CT_CC}-core"
150 # Good, now grab a bit of informations on the system we're being run,
151 # just in case something goes awok, and it's not our fault:
152 CT_SYS_HOSTNAME=`hostname -f 2>/dev/null || true`
153 # Hmmm. Some non-DHCP-enabled machines do not have an FQDN... Fall back to node name.
154 CT_SYS_HOSTNAME="${CT_SYS_HOSTNAME:-`uname -n`}"
155 CT_SYS_KERNEL=`uname -s`
156 CT_SYS_REVISION=`uname -r`
157 # MacOS X lacks '-o' :
158 CT_SYS_OS=`uname -o || echo "Unknown (maybe MacOS-X)"`
159 CT_SYS_MACHINE=`uname -m`
160 CT_SYS_PROCESSOR=`uname -p`
161 CT_SYS_USER="`id -un`"
162 CT_SYS_DATE=`CT_DoDate +%Y%m%d.%H%M%S`
163 CT_SYS_GCC=`gcc -dumpversion`
164 CT_TOOLCHAIN_ID="crosstool-${CT_VERSION} build ${CT_SYS_DATE} by ${CT_SYS_USER}@${CT_SYS_HOSTNAME} for ${CT_TARGET}"
166 # Check now if we can write to the destination directory:
167 if [ -d "${CT_INSTALL_DIR}" ]; then
168 CT_TestAndAbort "Destination directory \"${CT_INSTALL_DIR}\" is not removable" ! -w `dirname "${CT_INSTALL_DIR}"`
171 # Get rid of pre-existing installed toolchain and previous build directories.
172 # We need to do that _before_ we can safely log, because the log file will
173 # most probably be in the toolchain directory.
174 if [ -d "${CT_INSTALL_DIR}" ]; then
175 mv "${CT_INSTALL_DIR}" "${CT_INSTALL_DIR}.$$"
176 nohup rm -rf "${CT_INSTALL_DIR}.$$" >/dev/null 2>&1 &
178 if [ -d "${CT_BUILD_DIR}" ]; then
179 mv "${CT_BUILD_DIR}" "${CT_BUILD_DIR}.$$"
180 nohup rm -rf "${CT_BUILD_DIR}.$$" >/dev/null 2>&1 &
182 if [ "${CT_FORCE_EXTRACT}" = "y" -a -d "${CT_SRC_DIR}" ]; then
183 mv "${CT_SRC_DIR}" "${CT_SRC_DIR}.$$"
184 nohup rm -rf "${CT_SRC_DIR}.$$" >/dev/null 2>&1 &
186 mkdir -p "${CT_INSTALL_DIR}"
187 mkdir -p "${CT_BUILD_DIR}"
188 mkdir -p "${CT_TARBALLS_DIR}"
189 mkdir -p "${CT_SRC_DIR}"
191 # Make all path absolute, it so much easier!
192 # Now we have had the directories created, we even will get rid of embedded .. in paths:
193 CT_SRC_DIR="`CT_MakeAbsolutePath \"${CT_SRC_DIR}\"`"
194 CT_TARBALLS_DIR="`CT_MakeAbsolutePath \"${CT_TARBALLS_DIR}\"`"
196 # Redirect log to the actual log file now we can
197 # It's quite understandable that the log file will be installed in the install
198 # directory, so we must first ensure it exists and is writeable (above) before
200 case "${CT_LOG_TO_FILE},${CT_LOG_FILE}" in
201 ,*) rm -f "${CT_ACTUAL_LOG_FILE}"
202 CT_ACTUAL_LOG_FILE=/dev/null
204 y,/*) mkdir -p "`dirname \"${CT_LOG_FILE}\"`"
205 mv "${CT_ACTUAL_LOG_FILE}" "${CT_LOG_FILE}"
206 CT_ACTUAL_LOG_FILE="${CT_LOG_FILE}"
208 y,*) mkdir -p "`pwd`/`dirname \"${CT_LOG_FILE}\"`"
209 mv "${CT_ACTUAL_LOG_FILE}" "`pwd`/${CT_LOG_FILE}"
210 CT_ACTUAL_LOG_FILE="`pwd`/${CT_LOG_FILE}"
214 # Determine build system if not set by the user
215 CT_Test "You did not specify the build system. Guessing." -z "${CT_BUILD}"
216 CT_BUILD="`${CT_TOP_DIR}/tools/config.sub \"${CT_BUILD:-\`${CT_TOP_DIR}/tools/config.guess\`}\"`"
218 # Arrange paths depending on wether we use sys-root or not.
219 if [ "${CT_USE_SYSROOT}" = "y" ]; then
220 CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}/sys-root"
221 CT_HEADERS_DIR="${CT_SYSROOT_DIR}/usr/include"
222 BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
223 CC_CORE_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
224 CC_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
226 # glibc's prefix must be exactly /usr, else --with-sysroot'd gcc will get
227 # confused when $sysroot/usr/include is not present.
228 # Note: --prefix=/usr is magic!
229 # See http://www.gnu.org/software/libc/FAQ.html#s-2.2
231 # plain old way. All libraries in prefix/target/lib
232 CT_SYSROOT_DIR="${CT_PREFIX_DIR}/${CT_TARGET}"
233 CT_HEADERS_DIR="${CT_SYSROOT_DIR}/include"
234 # hack! Always use --with-sysroot for binutils.
235 # binutils 2.14 and later obey it, older binutils ignore it.
236 # Lets you build a working 32->64 bit cross gcc
237 BINUTILS_SYSROOT_ARG="--with-sysroot=${CT_SYSROOT_DIR}"
238 # Use --with-headers, else final gcc will define disable_glibc while
239 # building libgcc, and you'll have no profiling
240 CC_CORE_SYSROOT_ARG="--without-headers"
241 CC_SYSROOT_ARG="--with-headers=${CT_HEADERS_DIR}"
242 LIBC_SYSROOT_ARG="prefix="
245 # Prepare the 'lib' directories in sysroot, else the ../lib64 hack used by
246 # 32 -> 64 bit crosscompilers won't work, and build of final gcc will fail with
247 # "ld: cannot open crti.o: No such file or directory"
248 mkdir -p "${CT_SYSROOT_DIR}/lib"
249 mkdir -p "${CT_SYSROOT_DIR}/usr/lib"
251 # Canadian-cross are really picky on the way they are built. Tweak the values.
252 if [ "${CT_CANADIAN}" = "y" ]; then
253 # Arrange so that gcc never, ever think that build system == host system
254 CT_CANADIAN_OPT="--build=`echo \"${CT_BUILD}\" |sed -r -e 's/-/-build_/'`"
255 # We shall have a compiler for this target!
258 CT_HOST="${CT_BUILD}"
260 # Add the target toolchain in the path so that we can build the C library
261 export PATH="${CT_PREFIX_DIR}/bin:${CT_CC_CORE_PREFIX_DIR}/bin:${PATH}"
264 # Modify GCC_HOST to never be equal to $BUILD or $TARGET
265 # This strange operation causes gcc to always generate a cross-compiler
266 # even if the build machine is the same kind as the host.
267 # This is why CC has to be set when doing a canadian cross; you can't find a
268 # host compiler by appending -gcc to our whacky $GCC_HOST
269 # Kludge: it is reported that the above causes canadian crosses with cygwin
270 # hosts to fail, so avoid it just in that one case. It would be cleaner to
271 # just move this into the non-canadian case above, but I'm afraid that might
272 # cause some configure script somewhere to decide that since build==host, they
273 # could run host binaries.
274 # (Copied almost as-is from original crosstool):
275 case "${CT_KERNEL},${CT_CANADIAN}" in
277 *) CT_HOST="`echo \"${CT_HOST}\" |sed -r -e 's/-/-host_/;'`";;
280 # Ah! Recent versions of binutils need some of the build and/or host system
281 # (read CT_BUILD and CT_HOST) tools to be accessible (ar is but an example).
283 CT_DoLog EXTRA "Making build system tools available"
284 mkdir -p "${CT_PREFIX_DIR}/bin"
286 ln -s "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_BUILD}-${tool}"
287 ln -s "`which ${tool}`" "${CT_PREFIX_DIR}/bin/${CT_HOST}-${tool}"
290 # Ha. cygwin host have an .exe suffix (extension) for executables.
291 [ "${CT_KERNEL}" = "cygwin" ] && EXEEXT=".exe" || EXEEXT=""
293 # Transform the ARCH into a kernel-understandable ARCH
295 x86) CT_KERNEL_ARCH=i386;;
296 ppc) CT_KERNEL_ARCH=powerpc;;
297 *) CT_KERNEL_ARCH="${CT_ARCH}";;
300 # Build up the TARGET_CFLAGS from user-provided options
301 # Override with user-specified CFLAGS
302 [ -n "${CT_ARCH_CPU}" ] && CT_TARGET_CFLAGS="-mcpu=${CT_ARCH_CPU} ${CT_TARGET_CFLAGS}"
303 [ -n "${CT_ARCH_TUNE}" ] && CT_TARGET_CFLAGS="-mtune=${CT_ARCH_TUNE} ${CT_TARGET_CFLAGS}"
304 [ -n "${CT_ARCH_ARCH}" ] && CT_TARGET_CFLAGS="-march=${CT_ARCH_ARCH} ${CT_TARGET_CFLAGS}"
305 [ -n "${CT_ARCH_FPU}" ] && CT_TARGET_CFLAGS="-mfpu=${CT_ARCH_FPU} ${CT_TARGET_CFLAGS}"
309 [ "${CT_USE_PIPES}" = "y" ] && CT_CFLAGS_FOR_HOST="${CT_CFLAGS_FOR_HOST} -pipe"
311 # And help make go faster
313 [ ${CT_PARALLEL_JOBS} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -j${CT_PARALLEL_JOBS}"
314 [ ${CT_LOAD} -ne 0 ] && PARALLELMFLAGS="${PARALLELMFLAGS} -l${CT_LOAD}"
316 CT_DoStep EXTRA "Dumping internal crosstool-NG configuration"
317 CT_DoLog EXTRA "Building a toolchain for:"
318 CT_DoLog EXTRA " build = ${CT_BUILD}"
319 CT_DoLog EXTRA " host = ${CT_HOST}"
320 CT_DoLog EXTRA " target = ${CT_TARGET}"
321 set |egrep '^CT_.+=' |sort |CT_DoLog DEBUG
324 # Include sub-scripts instead of calling them: that way, we do not have to
325 # export any variable, nor re-parse the configuration and functions files.
326 . "${CT_TOP_DIR}/scripts/build/kernel_${CT_KERNEL}.sh"
327 . "${CT_TOP_DIR}/scripts/build/binutils.sh"
328 . "${CT_TOP_DIR}/scripts/build/libc_libfloat.sh"
329 . "${CT_TOP_DIR}/scripts/build/libc_${CT_LIBC}.sh"
330 . "${CT_TOP_DIR}/scripts/build/cc_core_${CT_CC_CORE}.sh"
331 . "${CT_TOP_DIR}/scripts/build/cc_${CT_CC}.sh"
333 # Now for the job by itself. Go have a coffee!
334 if [ "${CT_NO_DOWNLOAD}" != "y" ]; then
335 CT_DoStep INFO "Retrieving needed toolchain components' tarballs"
345 if [ "${CT_ONLY_DOWNLOAD}" != "y" ]; then
346 if [ "${CT_FORCE_EXTRACT}" = "y" ]; then
347 mv "${CT_SRC_DIR}" "${CT_SRC_DIR}.$$"
348 nohup rm -rf "${CT_SRC_DIR}.$$" >/dev/null 2>&1
350 CT_DoStep INFO "Extracting and patching toolchain components"
359 if [ "${CT_ONLY_EXTRACT}" != "y" ]; then
361 do_kernel_check_config
373 if [ -n "${CT_TARGET_ALIAS}" ]; then
374 CT_DoLog EXTRA "Creating symlinks from \"${CT_TARGET}-*\" to \"${CT_TARGET_ALIAS}-*\""
375 CT_Pushd "${CT_PREFIX_DIR}/bin"
376 for t in "${CT_TARGET}-"*; do
377 _t="`echo \"$t\" |sed -r -e 's/^'\"${CT_TARGET}\"'-/'\"${CT_TARGET_ALIAS}\"'-/;'`"
378 CT_DoLog DEBUG "Linking \"${_t}\" -> \"${t}\""
384 if [ "${CT_REMOVE_DOCS}" = "y" ]; then
385 CT_DoLog INFO "Removing installed documentation"
386 rm -rf "${CT_PREFIX_DIR}/"{man,info}
389 CT_STOP_DATE=`CT_DoDate +%s%N`
390 CT_STOP_DATE_HUMAN=`CT_DoDate +%Y%m%d.%H%M%S`
391 CT_DoLog INFO "Build completed at ${CT_STOP_DATE_HUMAN}"
392 elapsed=$((CT_STOP_DATE-CT_STAR_DATE))
393 elapsed_min=$((elapsed/(60*1000*1000*1000)))
394 elapsed_sec=`printf "%02d" $(((elapsed%(60*1000*1000*1000))/(1000*1000*1000)))`
395 elapsed_csec=`printf "%02d" $(((elapsed%(1000*1000*1000))/(10*1000*1000)))`
396 CT_DoLog INFO "(elapsed: ${elapsed_min}:${elapsed_sec}.${elapsed_csec})"
398 # Restore a 'normal' color setting
399 echo -en "${CT_NORMAL_COLOR}"