1 # This file adds the function to build the gcc C compiler
2 # Copyright 2007 Yann E. MORIN
3 # Licensed under the GPL v2. See COPYING in the root of this package
7 # Ah! gcc folks are kind of 'different': they store the tarballs in
8 # subdirectories of the same name! That's because gcc is such /crap/ that
9 # it is such /big/ that it needs being splitted for distribution! Sad. :-(
10 # Arrgghh! Some of those versions does not follow this convention:
11 # gcc-3.3.3 lives in releases/gcc-3.3.3, while gcc-2.95.* isn't in a
12 # subdirectory! You bastard!
13 CT_GetFile "gcc-${CT_CC_VERSION}" \
14 {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/gcc-${CT_CC_VERSION}} \
15 ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/releases/gcc-${CT_CC_VERSION} \
16 ftp://ftp.uvsq.fr/pub/gcc/snapshots/${CT_CC_VERSION}
18 # Starting with GCC 4.3, ecj is used for Java, and will only be
19 # built if the configure script finds ecj.jar at the top of the
20 # GCC source tree, which will not be there unless we get it and
21 # put it there ourselves
22 if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then
23 CT_GetFile ecj-latest .jar ftp://gcc.gnu.org/pub/java \
24 ftp://sourceware.org/pub/java
30 CT_Extract "gcc-${CT_CC_VERSION}"
31 CT_Patch "gcc" "${CT_CC_VERSION}"
33 # Copy ecj-latest.jar to ecj.jar at the top of the GCC source tree
34 if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" \
35 -a ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar" \
37 CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"
41 #------------------------------------------------------------------------------
44 # If we're building for bare metal, build the static core gcc,
46 # In case we're not bare metal and building a canadian compiler, do nothing
47 # In case we're not bare metal, and we're NPTL, build the static core gcc.
48 # In any other case, do nothing.
49 case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
50 y,*,*) do_cc_core mode=static;;
52 ,,nptl) do_cc_core mode=static;;
59 # In case we're building for bare metal, do nothing, we already have
61 # In case we're not bare metal and building a canadian compiler, do nothing
62 # In case we're NPTL, build the shared core gcc and the target libgcc.
63 # In any other case, build the static core gcc and, if using gcc-4.3+,
64 # also build the target libgcc.
65 case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
66 y,*,*) do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes;;
69 do_cc_core mode=shared build_libgcc=yes
71 ,,win32) do_cc_core mode=static build_libgcc=yes
73 *) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
74 do_cc_core mode=static build_libgcc=yes
76 do_cc_core mode=static
82 #------------------------------------------------------------------------------
84 # This function is used to build both the static and the shared core C conpiler,
85 # with or without the target libgcc. We need to know wether:
86 # - we're building static, shared or bare metal: mode=[static|shared|baremetal]
87 # - we need to build libgcc or not : build_libgcc=[yes|no] (default: no)
88 # - we need to build libstdc++ or not : build_libstdcxx=[yes|no] (default: no)
89 # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
93 local build_libstdcxx=no
101 while [ $# -ne 0 ]; do
109 core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
110 extra_config+=("--with-newlib")
111 extra_config+=("--enable-threads=no")
112 extra_config+=("--disable-shared")
113 copy_headers=y # For baremetal, as there's no headers to copy,
114 # we copy an empty directory. So, who cares?
117 core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
118 extra_config+=("--enable-shared")
122 core_prefix_dir="${CT_PREFIX_DIR}"
123 extra_config+=("--with-newlib")
124 extra_config+=("--enable-threads=no")
125 extra_config+=("--disable-shared")
126 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
130 CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'"
134 CT_DoStep INFO "Installing ${mode} core C compiler"
135 mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
136 cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
138 # Bare metal delivers the core compiler as final compiler, so add version info and bugurl
139 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
140 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
142 if [ "${copy_headers}" = "y" ]; then
143 CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
144 CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${core_prefix_dir}/${CT_TARGET}/include"
147 CT_DoLog EXTRA "Configuring ${mode} core C compiler"
149 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
150 eval tmp="\${CT_ARCH_WITH_${tmp}}"
151 if [ -n "${tmp}" ]; then
152 extra_config+=("${tmp}")
155 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
156 extra_config+=("--enable-__cxa_atexit")
158 extra_config+=("--disable-__cxa_atexit")
161 # When companion libraries are build static (eg !shared),
162 # the libstdc++ is not pulled automatically, although it
163 # is needed. Shoe-horn it in our LDFLAGS
164 # Ditto libm on some Fedora boxen
165 if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
166 core_LDFLAGS='-lstdc++ -lm'
168 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
169 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
170 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
172 if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
173 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
175 if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
176 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
177 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
178 elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
179 extra_config+=("--with-ppl=no")
180 extra_config+=("--with-cloog=no")
182 if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
183 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
184 elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
185 extra_config+=("--with-libelf=no")
188 if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
189 extra_config+=("--enable-target-optspace")
192 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
194 # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
195 CC_FOR_BUILD="${CT_BUILD}-gcc" \
196 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
197 LDFLAGS="${core_LDFLAGS}" \
199 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
200 --build=${CT_BUILD} \
202 --target=${CT_TARGET} \
203 --prefix="${core_prefix_dir}" \
204 --with-local-prefix="${CT_SYSROOT_DIR}" \
206 --disable-libmudflap \
207 ${CC_CORE_SYSROOT_ARG} \
208 "${extra_config[@]}" \
210 --enable-symvers=gnu \
211 --enable-languages="${lang_opt}" \
212 ${CT_CC_CORE_EXTRA_CONFIG}
214 if [ "${build_libgcc}" = "yes" ]; then
215 # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
216 # gcc/config/t-libunwind so -lc is removed from the link for
217 # libgcc_s.so, as we do not have a target -lc yet.
218 # This is not as ugly as it appears to be ;-) All symbols get resolved
219 # during the glibc build, and we provide a proper libgcc_s.so for the
220 # cross toolchain during the final gcc build.
222 # As we cannot modify the source tree, nor override SHLIB_LC itself
223 # during configure or make, we have to edit the resultant
224 # gcc/libgcc.mk itself to remove -lc from the link.
225 # This causes us to have to jump through some hoops...
227 # To produce libgcc.mk to edit we firstly require libiberty.a,
228 # so we configure then build it.
229 # Next we have to configure gcc, create libgcc.mk then edit it...
230 # So much easier if we just edit the source tree, but hey...
231 if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
232 CT_DoExecLog ALL make configure-libiberty
233 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
234 CT_DoExecLog ALL make configure-gcc configure-libcpp
235 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
237 CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
238 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
240 # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
241 if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
242 CT_DoExecLog ALL make configure-libdecnumber
243 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
246 # Starting with GCC 4.3, libgcc.mk is no longer built,
247 # and libgcc.mvars is used instead.
249 if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
250 libgcc_rule="libgcc.mvars"
251 core_targets=( gcc target-libgcc )
253 libgcc_rule="libgcc.mk"
257 # On bare metal and canadian build the host-compiler is used when
258 # actually the build-system compiler is required. Choose the correct
259 # compilers for canadian build and use the defaults on other
261 if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then
262 repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \
263 GCC_FOR_TARGET=${CT_TARGET}-gcc"
268 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule} \
270 sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
274 if [ "${build_libstdcxx}" = "yes" \
275 -a "${CT_CC_LANG_CXX}" = "y" \
277 core_targets+=( target-libstdc++-v3 )
280 CT_DoLog EXTRA "Building ${mode} core C compiler"
281 CT_DoExecLog ALL make ${PARALLELMFLAGS} "${core_targets[@]/#/all-}"
283 CT_DoLog EXTRA "Installing ${mode} core C compiler"
284 CT_DoExecLog ALL make "${core_targets[@]/#/install-}"
286 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
287 # to call the C compiler with the same, somewhat canonical name.
288 # check whether compiler has an extension
289 file="$( ls -1 "${core_prefix_dir}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
290 [ -z "${file}" ] || ext=".${file##*.}"
291 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${core_prefix_dir}/bin/${CT_TARGET}-cc${ext}"
296 #------------------------------------------------------------------------------
299 local -a extra_config
303 # If building for bare metal, nothing to be done here, the static core conpiler is enough!
304 [ "${CT_BARE_METAL}" = "y" ] && return 0
306 CT_DoStep INFO "Installing final compiler"
308 mkdir -p "${CT_BUILD_DIR}/build-cc"
309 cd "${CT_BUILD_DIR}/build-cc"
311 CT_DoLog EXTRA "Configuring final compiler"
313 # Enable selected languages
315 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
316 [ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_opt="${lang_opt},fortran"
317 [ "${CT_CC_LANG_ADA}" = "y" ] && lang_opt="${lang_opt},ada"
318 [ "${CT_CC_LANG_JAVA}" = "y" ] && lang_opt="${lang_opt},java"
319 [ "${CT_CC_LANG_OBJC}" = "y" ] && lang_opt="${lang_opt},objc"
320 [ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_opt="${lang_opt},obj-c++"
321 CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
322 CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
323 CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
324 CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
325 lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
327 # In case we build the C++ compiler, we have to tell gcc where to put the
328 # C++ headers, or else it will try to put it in prefix/tuple/include,
329 # which we make a symlink to sysroot/usr/include during the build, and
330 # that we delete (the symlink!) after the build, but gcc will not look
331 # in sysroot/usr/inlcude for C++ headers by default
332 if [ "${CT_CC_LANG_CXX}" = "y" ]; then
333 extra_config+=("--with-gxx-include-dir=${CT_SYSROOT_DIR}/usr/include")
336 extra_config+=("--enable-languages=${lang_opt}")
337 extra_config+=("--disable-multilib")
338 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
339 eval tmp="\${CT_ARCH_WITH_${tmp}}"
340 if [ -n "${tmp}" ]; then
341 extra_config+=("${tmp}")
345 [ "${CT_SHARED_LIBS}" = "y" ] || extra_config+=("--disable-shared")
346 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
347 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
348 case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in
349 y) extra_config+=("--enable-sjlj-exceptions");;
351 "") extra_config+=("--disable-sjlj-exceptions");;
353 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
354 extra_config+=("--enable-__cxa_atexit")
356 extra_config+=("--disable-__cxa_atexit")
358 if [ -n "${CC_ENABLE_CXX_FLAGS}" ]; then
359 extra_config+=("--enable-cxx-flags=${CC_ENABLE_CXX_FLAGS}")
361 if [ "${CT_CC_GCC_LIBMUDFLAP}" = "y" ]; then
362 extra_config+=(--enable-libmudflap)
364 extra_config+=(--disable-libmudflap)
367 if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
368 # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
370 # FIXME: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
371 # see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
372 extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm")
373 elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
374 # When companion libraries are build static (eg !shared),
375 # the libstdc++ is not pulled automatically, although it
376 # is needed. Shoe-horn it in our LDFLAGS
377 # Ditto libm on some Fedora boxen
378 final_LDFLAGS='-lstdc++ -lm'
380 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
381 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
382 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
384 if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
385 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
387 if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
388 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
389 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
390 elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
391 extra_config+=("--with-ppl=no")
392 extra_config+=("--with-cloog=no")
394 if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
395 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
396 elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
397 extra_config+=("--with-libelf=no")
400 if [ "${CT_THREADS}" = "none" ]; then
401 extra_config+=("--disable-threads")
402 if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
403 extra_config+=("--disable-libgomp")
406 if [ "${CT_THREADS}" = "win32" ]; then
407 extra_config+=("--enable-threads=win32")
408 extra_config+=("--disable-win32-registry")
410 extra_config+=("--enable-threads=posix")
414 if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
415 extra_config+=("--enable-target-optspace")
417 if [ "${CT_CC_GCC_DISABLE_PCH}" = "y" ]; then
418 extra_config+=("--disable-libstdcxx-pch")
421 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
423 # --enable-symvers=gnu really only needed for sh4 to work around a
424 # detection problem only matters for gcc-3.2.x and later, I think.
425 # --disable-nls to work around crash bug on ppc405, but also because
426 # embedded systems don't really need message catalogs...
427 CC_FOR_BUILD="${CT_BUILD}-gcc" \
428 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
429 LDFLAGS="${final_LDFLAGS}" \
430 CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
431 CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
432 LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
434 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
435 --build=${CT_BUILD} \
437 --target=${CT_TARGET} \
438 --prefix="${CT_PREFIX_DIR}" \
440 "${extra_config[@]}" \
441 --with-local-prefix="${CT_SYSROOT_DIR}" \
443 --enable-symvers=gnu \
446 ${CT_CC_EXTRA_CONFIG}
448 if [ "${CT_CANADIAN}" = "y" ]; then
449 CT_DoLog EXTRA "Building libiberty"
450 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
453 CT_DoLog EXTRA "Building final compiler"
454 CT_DoExecLog ALL make ${PARALLELMFLAGS} all
456 CT_DoLog EXTRA "Installing final compiler"
457 CT_DoExecLog ALL make install
459 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
460 # to call the C compiler with the same, somewhat canonical name.
461 # check whether compiler has an extension
462 file="$( ls -1 "${CT_PREFIX_DIR}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
463 [ -z "${file}" ] || ext=".${file##*.}"
464 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-cc${ext}"