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