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-${CT_CC_VERSION}
16 # Starting with GCC 4.3, ecj is used for Java, and will only be
17 # built if the configure script finds ecj.jar at the top of the
18 # GCC source tree, which will not be there unless we get it and
19 # put it there ourselves
20 if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then
21 CT_GetFile ecj-latest .jar ftp://gcc.gnu.org/pub/java \
22 ftp://sourceware.org/pub/java
28 CT_Extract "gcc-${CT_CC_VERSION}"
29 CT_Patch "gcc-${CT_CC_VERSION}"
30 # Copy ecj-latest.jar to ecj.jar at the top of the GCC source tree
31 if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then
32 CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"
36 #------------------------------------------------------------------------------
39 # If we're building for bare metal, build the static core gcc,
41 # In case we're not bare metal, and we're NPTL, build the static core gcc.
42 # In any other case, do nothing.
43 case "${CT_BARE_METAL},${CT_THREADS}" in
44 y,*) do_cc_core mode=baremetal build_libgcc=yes;;
45 ,nptl) do_cc_core mode=static build_libgcc=no;;
52 # In case we're building for bare metal, do nothing, we already have
54 # In case we're NPTL, build the shared core gcc and the target libgcc.
55 # In any other case, build the static core gcc and, if using gcc-4.3+,
56 # also build the target libgcc.
57 case "${CT_BARE_METAL},${CT_THREADS}" in
60 do_cc_core mode=shared build_libgcc=yes
62 *) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
63 do_cc_core mode=static build_libgcc=yes
65 do_cc_core mode=static build_libgcc=no
71 #------------------------------------------------------------------------------
73 # This function is used to build both the static and the shared core C conpiler,
74 # with or without the target libgcc. We need to know wether:
75 # - we're building static, shared or bare metal: mode=[static|shared|baremetal]
76 # - we need to build libgcc or not : build_libgcc=[yes|no]
77 # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
87 CT_TestOrAbort "Internal Error: 'mode' must either 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'" "${mode}" = "static" -o "${mode}" = "shared" -o "${mode}" = "baremetal"
88 CT_TestOrAbort "Internal Error: 'build_libgcc' must be either 'yes' or 'no', not '${build_libgcc:-(empty)}'" "${build_libgcc}" = "yes" -o "${build_libgcc}" = "no"
89 # In normal conditions, ( "${mode}" = "shared" ) implies
90 # ( "${build_libgcc}" = "yes" ), but I won't check for that
92 CT_DoStep INFO "Installing ${mode} core C compiler"
93 mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
94 cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
99 core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
100 extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"
104 core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
105 extra_config="${extra_config} --enable-shared"
109 core_prefix_dir="${CT_PREFIX_DIR}"
110 extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"
111 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
116 if [ "${copy_headers}" = "y" ]; then
117 CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
118 CT_DoExecLog ALL mkdir -p "${core_prefix_dir}/${CT_TARGET}/include"
119 CT_DoExecLog ALL cp -r "${CT_HEADERS_DIR}"/* "${core_prefix_dir}/${CT_TARGET}/include"
122 CT_DoLog EXTRA "Configuring ${mode} core C compiler"
124 extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"
125 extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"
126 extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"
127 extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"
128 extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"
129 extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"
130 [ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
131 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
132 extra_config="${extra_config} --enable-__cxa_atexit"
134 extra_config="${extra_config} --disable-__cxa_atexit"
137 CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
139 # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
140 CC_FOR_BUILD="${CT_BUILD}-gcc" \
141 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
143 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
144 --build=${CT_BUILD} \
146 --target=${CT_TARGET} \
147 --prefix="${core_prefix_dir}" \
148 --with-local-prefix="${CT_SYSROOT_DIR}" \
150 ${CC_CORE_SYSROOT_ARG} \
153 --enable-symvers=gnu \
154 --enable-languages="${lang_opt}" \
155 --enable-target-optspace \
156 ${CT_CC_CORE_EXTRA_CONFIG}
158 if [ "${build_libgcc}" = "yes" ]; then
159 # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
160 # gcc/config/t-libunwind so -lc is removed from the link for
161 # libgcc_s.so, as we do not have a target -lc yet.
162 # This is not as ugly as it appears to be ;-) All symbols get resolved
163 # during the glibc build, and we provide a proper libgcc_s.so for the
164 # cross toolchain during the final gcc build.
166 # As we cannot modify the source tree, nor override SHLIB_LC itself
167 # during configure or make, we have to edit the resultant
168 # gcc/libgcc.mk itself to remove -lc from the link.
169 # This causes us to have to jump through some hoops...
171 # To produce libgcc.mk to edit we firstly require libiberty.a,
172 # so we configure then build it.
173 # Next we have to configure gcc, create libgcc.mk then edit it...
174 # So much easier if we just edit the source tree, but hey...
175 if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
176 CT_DoExecLog ALL make configure-libiberty
177 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
178 CT_DoExecLog ALL make configure-gcc configure-libcpp
179 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
181 CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
182 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
184 # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
185 if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
186 CT_DoExecLog ALL make configure-libdecnumber
187 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
190 # Starting with GCC 4.3, libgcc.mk is no longer built,
191 # and libgcc.mvars is used instead.
193 if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
194 libgcc_rule="libgcc.mvars"
195 build_rules="all-gcc all-target-libgcc"
196 install_rules="install-gcc install-target-libgcc"
198 libgcc_rule="libgcc.mk"
199 build_rules="all-gcc"
200 install_rules="install-gcc"
203 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule}
204 sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
206 build_rules="all-gcc"
207 install_rules="install-gcc"
210 if [ "${CT_CANADIAN}" = "y" ]; then
211 CT_DoLog EXTRA "Building libiberty"
212 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
215 CT_DoLog EXTRA "Building ${mode} core C compiler"
216 CT_DoExecLog ALL make ${PARALLELMFLAGS} ${build_rules}
218 CT_DoLog EXTRA "Installing ${mode} core C compiler"
219 CT_DoExecLog ALL make ${install_rules}
224 #------------------------------------------------------------------------------
227 # If building for bare metal, nothing to be done here, the static core conpiler is enough!
228 [ "${CT_BARE_METAL}" = "y" ] && return 0
230 CT_DoStep INFO "Installing final compiler"
232 mkdir -p "${CT_BUILD_DIR}/build-cc"
233 cd "${CT_BUILD_DIR}/build-cc"
235 CT_DoLog EXTRA "Configuring final compiler"
237 # Enable selected languages
239 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
240 [ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_opt="${lang_opt},fortran"
241 [ "${CT_CC_LANG_ADA}" = "y" ] && lang_opt="${lang_opt},ada"
242 [ "${CT_CC_LANG_JAVA}" = "y" ] && lang_opt="${lang_opt},java"
243 [ "${CT_CC_LANG_OBJC}" = "y" ] && lang_opt="${lang_opt},objc"
244 [ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_opt="${lang_opt},obj-c++"
245 CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
246 CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
247 CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
248 CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
249 lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
251 extra_config="--enable-languages=${lang_opt}"
252 extra_config="${extra_config} --disable-multilib"
253 extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"
254 extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"
255 extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"
256 extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"
257 extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"
258 extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"
259 [ "${CT_SHARED_LIBS}" = "y" ] || extra_config="${extra_config} --disable-shared"
260 [ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
261 [ -n "${CT_CC_PKGVERSION}" ] && extra_config="${extra_config} --with-pkgversion=${CT_CC_PKGVERSION}"
262 [ -n "${CT_CC_BUGURL}" ] && extra_config="${extra_config} --with-bugurl=${CT_CC_BUGURL}"
263 [ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ] && extra_config="${extra_config} --enable-sjlj-exceptions"
264 [ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ] && extra_config="${extra_config} --disable-sjlj-exceptions"
265 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
266 extra_config="${extra_config} --enable-__cxa_atexit"
268 extra_config="${extra_config} --disable-__cxa_atexit"
271 CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
273 # --enable-symvers=gnu really only needed for sh4 to work around a
274 # detection problem only matters for gcc-3.2.x and later, I think.
275 # --disable-nls to work around crash bug on ppc405, but also because
276 # embedded systems don't really need message catalogs...
277 CC_FOR_BUILD="${CT_BUILD}-gcc" \
278 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
279 CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
280 CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
281 LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
283 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
284 --build=${CT_BUILD} \
286 --target=${CT_TARGET} \
287 --prefix="${CT_PREFIX_DIR}" \
290 --with-local-prefix="${CT_SYSROOT_DIR}" \
292 --enable-threads=posix \
293 --enable-symvers=gnu \
296 --enable-target-optspace \
297 ${CT_CC_EXTRA_CONFIG}
299 if [ "${CT_CANADIAN}" = "y" ]; then
300 CT_DoLog EXTRA "Building libiberty"
301 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
304 CT_DoLog EXTRA "Building final compiler"
305 CT_DoExecLog ALL make ${PARALLELMFLAGS} all
307 CT_DoLog EXTRA "Installing final compiler"
308 CT_DoExecLog ALL make install
310 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
311 # to call the C compiler with the same, somewhat canonical name.
312 CT_DoExecLog ALL ln -sv "${CT_TARGET}"-gcc "${CT_PREFIX_DIR}/bin/${CT_TARGET}"-cc