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=baremetal build_libgcc=yes;;
52 ,,nptl) do_cc_core mode=static build_libgcc=no;;
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},${CT_THREADS}" in
69 do_cc_core mode=shared build_libgcc=yes
71 *) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
72 do_cc_core mode=static build_libgcc=yes
74 do_cc_core mode=static build_libgcc=no
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]
86 # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
98 CT_TestOrAbort "Internal Error: 'mode' must either 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'" "${mode}" = "static" -o "${mode}" = "shared" -o "${mode}" = "baremetal"
99 CT_TestOrAbort "Internal Error: 'build_libgcc' must be either 'yes' or 'no', not '${build_libgcc:-(empty)}'" "${build_libgcc}" = "yes" -o "${build_libgcc}" = "no"
100 # In normal conditions, ( "${mode}" = "shared" ) implies
101 # ( "${build_libgcc}" = "yes" ), but I won't check for that
103 CT_DoStep INFO "Installing ${mode} core C compiler"
104 mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
105 cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
110 core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
111 extra_config+=("--with-newlib")
112 extra_config+=("--enable-threads=no")
113 extra_config+=("--disable-shared")
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++"
131 # Bare metal delivers the core compiler as final compiler, so add version info and bugurl
132 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
133 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
135 if [ "${copy_headers}" = "y" ]; then
136 CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
137 CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${core_prefix_dir}/${CT_TARGET}/include"
140 CT_DoLog EXTRA "Configuring ${mode} core C compiler"
142 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
143 eval tmp="\${CT_ARCH_WITH_${tmp}}"
144 if [ -n "${tmp}" ]; then
145 extra_config+=("${tmp}")
148 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
149 extra_config+=("--enable-__cxa_atexit")
151 extra_config+=("--disable-__cxa_atexit")
154 # When companion libraries are build static (eg !shared),
155 # the libstdc++ is not pulled automatically, although it
156 # is needed. Shoe-horn it in our LDFLAGS
157 if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
158 core_LDFLAGS='-lstdc++'
160 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
161 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
162 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
164 if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then
165 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
166 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
167 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
169 if [ "${CT_CC_GCC_USE_LIBELF}" = "y" ]; then
170 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
173 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
175 # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
176 CC_FOR_BUILD="${CT_BUILD}-gcc" \
177 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
178 LDFLAGS="${core_LDFLAGS}" \
180 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
181 --build=${CT_BUILD} \
183 --target=${CT_TARGET} \
184 --prefix="${core_prefix_dir}" \
185 --with-local-prefix="${CT_SYSROOT_DIR}" \
187 ${CC_CORE_SYSROOT_ARG} \
188 "${extra_config[@]}" \
190 --enable-symvers=gnu \
191 --enable-languages="${lang_opt}" \
192 --enable-target-optspace \
193 ${CT_CC_CORE_EXTRA_CONFIG}
195 if [ "${build_libgcc}" = "yes" ]; then
196 # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
197 # gcc/config/t-libunwind so -lc is removed from the link for
198 # libgcc_s.so, as we do not have a target -lc yet.
199 # This is not as ugly as it appears to be ;-) All symbols get resolved
200 # during the glibc build, and we provide a proper libgcc_s.so for the
201 # cross toolchain during the final gcc build.
203 # As we cannot modify the source tree, nor override SHLIB_LC itself
204 # during configure or make, we have to edit the resultant
205 # gcc/libgcc.mk itself to remove -lc from the link.
206 # This causes us to have to jump through some hoops...
208 # To produce libgcc.mk to edit we firstly require libiberty.a,
209 # so we configure then build it.
210 # Next we have to configure gcc, create libgcc.mk then edit it...
211 # So much easier if we just edit the source tree, but hey...
212 if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
213 CT_DoExecLog ALL make configure-libiberty
214 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
215 CT_DoExecLog ALL make configure-gcc configure-libcpp
216 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
218 CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
219 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
221 # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
222 if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
223 CT_DoExecLog ALL make configure-libdecnumber
224 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
227 # Starting with GCC 4.3, libgcc.mk is no longer built,
228 # and libgcc.mvars is used instead.
230 if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
231 libgcc_rule="libgcc.mvars"
232 build_rules="all-gcc all-target-libgcc"
233 install_rules="install-gcc install-target-libgcc"
235 libgcc_rule="libgcc.mk"
236 build_rules="all-gcc"
237 install_rules="install-gcc"
240 # On bare metal and canadian build the host-compiler is used when
241 # actually the build-system compiler is required. Choose the correct
242 # compilers for canadian build and use the defaults on other
244 if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then
245 repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \
246 GCC_FOR_TARGET=${CT_TARGET}-gcc"
251 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule} \
253 sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
255 build_rules="all-gcc"
256 install_rules="install-gcc"
259 CT_DoLog EXTRA "Building ${mode} core C compiler"
260 CT_DoExecLog ALL make ${PARALLELMFLAGS} ${build_rules}
262 CT_DoLog EXTRA "Installing ${mode} core C compiler"
263 CT_DoExecLog ALL make ${install_rules}
265 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
266 # to call the C compiler with the same, somewhat canonical name.
267 # check whether compiler has an extension
268 file="$( ls -1 "${core_prefix_dir}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
269 [ -z "${file}" ] || ext=".${file##*.}"
270 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${core_prefix_dir}/bin/${CT_TARGET}-cc${ext}"
275 #------------------------------------------------------------------------------
278 local -a extra_config
282 # If building for bare metal, nothing to be done here, the static core conpiler is enough!
283 [ "${CT_BARE_METAL}" = "y" ] && return 0
285 CT_DoStep INFO "Installing final compiler"
287 mkdir -p "${CT_BUILD_DIR}/build-cc"
288 cd "${CT_BUILD_DIR}/build-cc"
290 CT_DoLog EXTRA "Configuring final compiler"
292 # Enable selected languages
294 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
295 [ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_opt="${lang_opt},fortran"
296 [ "${CT_CC_LANG_ADA}" = "y" ] && lang_opt="${lang_opt},ada"
297 [ "${CT_CC_LANG_JAVA}" = "y" ] && lang_opt="${lang_opt},java"
298 [ "${CT_CC_LANG_OBJC}" = "y" ] && lang_opt="${lang_opt},objc"
299 [ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_opt="${lang_opt},obj-c++"
300 CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
301 CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
302 CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
303 CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
304 lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
306 extra_config+=("--enable-languages=${lang_opt}")
307 extra_config+=("--disable-multilib")
308 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
309 eval tmp="\${CT_ARCH_WITH_${tmp}}"
310 if [ -n "${tmp}" ]; then
311 extra_config+=("${tmp}")
315 [ "${CT_SHARED_LIBS}" = "y" ] || extra_config+=("--disable-shared")
316 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
317 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
318 [ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ] && extra_config+=("--enable-sjlj-exceptions")
319 [ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ] && extra_config+=("--disable-sjlj-exceptions")
320 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
321 extra_config+=("--enable-__cxa_atexit")
323 extra_config+=("--disable-__cxa_atexit")
325 if [ -n "${CC_ENABLE_CXX_FLAGS}" ]; then
326 extra_config+=("--enable-cxx-flags=${CC_ENABLE_CXX_FLAGS}")
329 # When companion libraries are build static (eg !shared),
330 # the libstdc++ is not pulled automatically, although it
331 # is needed. Shoe-horn it in our LDFLAGS
332 if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
333 final_LDFLAGS='-lstdc++'
335 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
336 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
337 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
339 if [ "${CT_CC_GCC_USE_PPL_CLOOG_MPC}" = "y" ]; then
340 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
341 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
342 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
344 if [ "${CT_CC_GCC_USE_LIBELF}" = "y" ]; then
345 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
348 if [ "${CT_THREADS}" = "none" ]; then
349 extra_config+=("--disable-threads")
350 if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
351 extra_config+=("--disable-libgomp")
354 extra_config+=("--enable-threads=posix")
357 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
359 # --enable-symvers=gnu really only needed for sh4 to work around a
360 # detection problem only matters for gcc-3.2.x and later, I think.
361 # --disable-nls to work around crash bug on ppc405, but also because
362 # embedded systems don't really need message catalogs...
363 CC_FOR_BUILD="${CT_BUILD}-gcc" \
364 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
365 LDFLAGS="${final_LDFLAGS}" \
366 CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
367 CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
368 LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
370 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
371 --build=${CT_BUILD} \
373 --target=${CT_TARGET} \
374 --prefix="${CT_PREFIX_DIR}" \
376 "${extra_config[@]}" \
377 --with-local-prefix="${CT_SYSROOT_DIR}" \
379 --enable-symvers=gnu \
382 --enable-target-optspace \
383 ${CT_CC_EXTRA_CONFIG}
385 if [ "${CT_CANADIAN}" = "y" ]; then
386 CT_DoLog EXTRA "Building libiberty"
387 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
390 CT_DoLog EXTRA "Building final compiler"
391 CT_DoExecLog ALL make ${PARALLELMFLAGS} all
393 CT_DoLog EXTRA "Installing final compiler"
394 CT_DoExecLog ALL make install
396 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
397 # to call the C compiler with the same, somewhat canonical name.
398 # check whether compiler has an extension
399 file="$( ls -1 "${CT_PREFIX_DIR}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
400 [ -z "${file}" ] || ext=".${file##*.}"
401 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-cc${ext}"