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},${CT_THREADS}" in
66 y,*,*) do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes;;
69 do_cc_core mode=shared build_libgcc=yes
71 *) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
72 do_cc_core mode=static build_libgcc=yes
74 do_cc_core mode=static
80 #------------------------------------------------------------------------------
82 # This function is used to build both the static and the shared core C conpiler,
83 # with or without the target libgcc. We need to know wether:
84 # - we're building static, shared or bare metal: mode=[static|shared|baremetal]
85 # - we need to build libgcc or not : build_libgcc=[yes|no] (default: no)
86 # - we need to build libstdc++ or not : build_libstdcxx=[yes|no] (default: no)
87 # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
91 local build_libstdcxx=no
99 while [ $# -ne 0 ]; do
107 core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
108 extra_config+=("--with-newlib")
109 extra_config+=("--enable-threads=no")
110 extra_config+=("--disable-shared")
111 copy_headers=y # For baremetal, as there's no headers to copy,
112 # we copy an empty directory. So, who cares?
115 core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
116 extra_config+=("--enable-shared")
120 core_prefix_dir="${CT_PREFIX_DIR}"
121 extra_config+=("--with-newlib")
122 extra_config+=("--enable-threads=no")
123 extra_config+=("--disable-shared")
124 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
128 CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'"
132 CT_DoStep INFO "Installing ${mode} core C compiler"
133 mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
134 cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
136 # Bare metal delivers the core compiler as final compiler, so add version info and bugurl
137 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
138 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
140 if [ "${copy_headers}" = "y" ]; then
141 CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
142 CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${core_prefix_dir}/${CT_TARGET}/include"
145 CT_DoLog EXTRA "Configuring ${mode} core C compiler"
147 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
148 eval tmp="\${CT_ARCH_WITH_${tmp}}"
149 if [ -n "${tmp}" ]; then
150 extra_config+=("${tmp}")
153 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
154 extra_config+=("--enable-__cxa_atexit")
156 extra_config+=("--disable-__cxa_atexit")
159 # When companion libraries are build static (eg !shared),
160 # the libstdc++ is not pulled automatically, although it
161 # is needed. Shoe-horn it in our LDFLAGS
162 if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
163 core_LDFLAGS='-lstdc++'
165 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
166 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
167 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
169 if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then
170 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
171 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
172 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
174 if [ "${CT_CC_GCC_USE_LIBELF}" = "y" ]; then
175 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
178 if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
179 extra_config+=("--enable-target-optspace")
182 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
184 # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
185 CC_FOR_BUILD="${CT_BUILD}-gcc" \
186 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
187 LDFLAGS="${core_LDFLAGS}" \
189 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
190 --build=${CT_BUILD} \
192 --target=${CT_TARGET} \
193 --prefix="${core_prefix_dir}" \
194 --with-local-prefix="${CT_SYSROOT_DIR}" \
196 ${CC_CORE_SYSROOT_ARG} \
197 "${extra_config[@]}" \
199 --enable-symvers=gnu \
200 --enable-languages="${lang_opt}" \
201 ${CT_CC_CORE_EXTRA_CONFIG}
203 if [ "${build_libgcc}" = "yes" ]; then
204 # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
205 # gcc/config/t-libunwind so -lc is removed from the link for
206 # libgcc_s.so, as we do not have a target -lc yet.
207 # This is not as ugly as it appears to be ;-) All symbols get resolved
208 # during the glibc build, and we provide a proper libgcc_s.so for the
209 # cross toolchain during the final gcc build.
211 # As we cannot modify the source tree, nor override SHLIB_LC itself
212 # during configure or make, we have to edit the resultant
213 # gcc/libgcc.mk itself to remove -lc from the link.
214 # This causes us to have to jump through some hoops...
216 # To produce libgcc.mk to edit we firstly require libiberty.a,
217 # so we configure then build it.
218 # Next we have to configure gcc, create libgcc.mk then edit it...
219 # So much easier if we just edit the source tree, but hey...
220 if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
221 CT_DoExecLog ALL make configure-libiberty
222 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
223 CT_DoExecLog ALL make configure-gcc configure-libcpp
224 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
226 CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
227 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
229 # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
230 if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
231 CT_DoExecLog ALL make configure-libdecnumber
232 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
235 # Starting with GCC 4.3, libgcc.mk is no longer built,
236 # and libgcc.mvars is used instead.
238 if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
239 libgcc_rule="libgcc.mvars"
240 core_targets=( gcc target-libgcc )
242 libgcc_rule="libgcc.mk"
246 # On bare metal and canadian build the host-compiler is used when
247 # actually the build-system compiler is required. Choose the correct
248 # compilers for canadian build and use the defaults on other
250 if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then
251 repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \
252 GCC_FOR_TARGET=${CT_TARGET}-gcc"
257 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule} \
259 sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
263 if [ "${build_libstdcxx}" = "yes" \
264 -a "${CT_CC_LANG_CXX}" = "y" \
266 core_targets+=( target-libstdc++-v3 )
269 CT_DoLog EXTRA "Building ${mode} core C compiler"
270 CT_DoExecLog ALL make ${PARALLELMFLAGS} "${core_targets[@]/#/all-}"
272 CT_DoLog EXTRA "Installing ${mode} core C compiler"
273 CT_DoExecLog ALL make "${core_targets[@]/#/install-}"
275 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
276 # to call the C compiler with the same, somewhat canonical name.
277 # check whether compiler has an extension
278 file="$( ls -1 "${core_prefix_dir}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
279 [ -z "${file}" ] || ext=".${file##*.}"
280 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${core_prefix_dir}/bin/${CT_TARGET}-cc${ext}"
285 #------------------------------------------------------------------------------
288 local -a extra_config
292 # If building for bare metal, nothing to be done here, the static core conpiler is enough!
293 [ "${CT_BARE_METAL}" = "y" ] && return 0
295 CT_DoStep INFO "Installing final compiler"
297 mkdir -p "${CT_BUILD_DIR}/build-cc"
298 cd "${CT_BUILD_DIR}/build-cc"
300 CT_DoLog EXTRA "Configuring final compiler"
302 # Enable selected languages
304 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
305 [ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_opt="${lang_opt},fortran"
306 [ "${CT_CC_LANG_ADA}" = "y" ] && lang_opt="${lang_opt},ada"
307 [ "${CT_CC_LANG_JAVA}" = "y" ] && lang_opt="${lang_opt},java"
308 [ "${CT_CC_LANG_OBJC}" = "y" ] && lang_opt="${lang_opt},objc"
309 [ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_opt="${lang_opt},obj-c++"
310 CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
311 CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
312 CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
313 CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
314 lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
316 extra_config+=("--enable-languages=${lang_opt}")
317 extra_config+=("--disable-multilib")
318 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
319 eval tmp="\${CT_ARCH_WITH_${tmp}}"
320 if [ -n "${tmp}" ]; then
321 extra_config+=("${tmp}")
325 [ "${CT_SHARED_LIBS}" = "y" ] || extra_config+=("--disable-shared")
326 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
327 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
328 [ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ] && extra_config+=("--enable-sjlj-exceptions")
329 [ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ] && extra_config+=("--disable-sjlj-exceptions")
330 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
331 extra_config+=("--enable-__cxa_atexit")
333 extra_config+=("--disable-__cxa_atexit")
335 if [ -n "${CC_ENABLE_CXX_FLAGS}" ]; then
336 extra_config+=("--enable-cxx-flags=${CC_ENABLE_CXX_FLAGS}")
339 # When companion libraries are build static (eg !shared),
340 # the libstdc++ is not pulled automatically, although it
341 # is needed. Shoe-horn it in our LDFLAGS
342 if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
343 final_LDFLAGS='-lstdc++'
345 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
346 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
347 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
349 if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then
350 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
351 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
352 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
354 if [ "${CT_CC_GCC_USE_LIBELF}" = "y" ]; then
355 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
358 if [ "${CT_THREADS}" = "none" ]; then
359 extra_config+=("--disable-threads")
360 if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
361 extra_config+=("--disable-libgomp")
364 extra_config+=("--enable-threads=posix")
367 if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
368 extra_config+=("--enable-target-optspace")
370 if [ "${CT_CC_GCC_DISABLE_PCH}" = "y" ]; then
371 extra_config+=("--disable-libstdcxx-pch")
374 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
376 # --enable-symvers=gnu really only needed for sh4 to work around a
377 # detection problem only matters for gcc-3.2.x and later, I think.
378 # --disable-nls to work around crash bug on ppc405, but also because
379 # embedded systems don't really need message catalogs...
380 CC_FOR_BUILD="${CT_BUILD}-gcc" \
381 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
382 LDFLAGS="${final_LDFLAGS}" \
383 CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
384 CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
385 LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
387 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
388 --build=${CT_BUILD} \
390 --target=${CT_TARGET} \
391 --prefix="${CT_PREFIX_DIR}" \
393 "${extra_config[@]}" \
394 --with-local-prefix="${CT_SYSROOT_DIR}" \
396 --enable-symvers=gnu \
399 ${CT_CC_EXTRA_CONFIG}
401 if [ "${CT_CANADIAN}" = "y" ]; then
402 CT_DoLog EXTRA "Building libiberty"
403 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
406 CT_DoLog EXTRA "Building final compiler"
407 CT_DoExecLog ALL make ${PARALLELMFLAGS} all
409 CT_DoLog EXTRA "Installing final compiler"
410 CT_DoExecLog ALL make install
412 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
413 # to call the C compiler with the same, somewhat canonical name.
414 # check whether compiler has an extension
415 file="$( ls -1 "${CT_TARGET}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
416 [ -z "${file}" ] || ext=".${file##*.}"
417 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-cc${ext}"