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
6 [ "${CT_CC}" = "gcc" ] || return 0
7 echo "gcc-${CT_CC_VERSION}"
12 # Ah! gcc folks are kind of 'different': they store the tarballs in
13 # subdirectories of the same name! That's because gcc is such /crap/ that
14 # it is such /big/ that it needs being splitted for distribution! Sad. :-(
15 # Arrgghh! Some of those versions does not follow this convention:
16 # gcc-3.3.3 lives in releases/gcc-3.3.3, while gcc-2.95.* isn't in a
17 # subdirectory! You bastard!
18 CT_GetFile "${CT_CC_FILE}" \
19 {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/${CT_CC_FILE}}
24 CT_ExtractAndPatch "${CT_CC_FILE}"
27 #------------------------------------------------------------------------------
30 # If we're building for bare metal, build the static core gcc,
32 # In case we're not bare metal, and we're NPTL, build the static core gcc.
33 # In any other case, do nothing.
34 case "${CT_BARE_METAL},${CT_THREADS}" in
35 y,*) do_cc_core mode=baremetal build_libgcc=yes;;
36 ,nptl) do_cc_core mode=static build_libgcc=no;;
43 # In case we're building for bare metal, do nothing, we already have
45 # In case we're NPTL, build the shared core gcc and the target libgcc.
46 # In any other case, build the static core gcc and, if using gcc-4.3+,
47 # also build the target libgcc.
48 case "${CT_BARE_METAL},${CT_THREADS}" in
51 do_cc_core mode=shared build_libgcc=yes
53 *) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
54 do_cc_core mode=static build_libgcc=yes
56 do_cc_core mode=static build_libgcc=no
62 #------------------------------------------------------------------------------
64 # This function is used to build both the static and the shared core C conpiler,
65 # with or without the target libgcc. We need to know wether:
66 # - we're building static, shared or bare metal: mode=[static|shared|baremetal]
67 # - we need to build libgcc or not : build_libgcc=[yes|no]
68 # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
77 CT_TestOrAbort "Internal Error: 'mode' must either 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'" "${mode}" = "static" -o "${mode}" = "shared" -o "${mode}" = "baremetal"
78 CT_TestOrAbort "Internal Error: 'build_libgcc' must be either 'yes' or 'no', not '${build_libgcc:-(empty)}'" "${build_libgcc}" = "yes" -o "${build_libgcc}" = "no"
79 # In normal conditions, ( "${mode}" = "shared" ) implies
80 # ( "${build_libgcc}" = "yes" ), but I won't check for that
82 mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
83 cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
85 CT_DoStep INFO "Installing ${mode} core C compiler"
88 core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
89 extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"
93 core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
94 extra_config="${extra_config} --enable-shared"
98 core_prefix_dir="${CT_PREFIX_DIR}"
99 extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"
104 if [ "${copy_headers}" = "y" ]; then
105 CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
106 CT_DoExecLog ALL mkdir -p "${core_prefix_dir}/${CT_TARGET}/include"
107 CT_DoExecLog ALL cp -r "${CT_HEADERS_DIR}"/* "${core_prefix_dir}/${CT_TARGET}/include"
110 CT_DoLog EXTRA "Configuring ${mode} core C compiler"
112 extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"
113 extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"
114 extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"
115 extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"
116 extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"
117 extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"
118 [ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
119 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
120 extra_config="${extra_config} --enable-__cxa_atexit"
122 extra_config="${extra_config} --disable-__cxa_atexit"
125 CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
127 # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
128 CC_FOR_BUILD="${CT_BUILD}-gcc" \
129 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
131 "${CT_SRC_DIR}/${CT_CC_FILE}/configure" \
132 --build=${CT_BUILD} \
134 --target=${CT_TARGET} \
135 --prefix="${core_prefix_dir}" \
136 --with-local-prefix="${CT_SYSROOT_DIR}" \
138 ${CC_CORE_SYSROOT_ARG} \
141 --enable-symvers=gnu \
142 --enable-languages=c \
143 --enable-target-optspace \
144 ${CT_CC_CORE_EXTRA_CONFIG}
146 if [ "${build_libgcc}" = "yes" ]; then
147 # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
148 # gcc/config/t-libunwind so -lc is removed from the link for
149 # libgcc_s.so, as we do not have a target -lc yet.
150 # This is not as ugly as it appears to be ;-) All symbols get resolved
151 # during the glibc build, and we provide a proper libgcc_s.so for the
152 # cross toolchain during the final gcc build.
154 # As we cannot modify the source tree, nor override SHLIB_LC itself
155 # during configure or make, we have to edit the resultant
156 # gcc/libgcc.mk itself to remove -lc from the link.
157 # This causes us to have to jump through some hoops...
159 # To produce libgcc.mk to edit we firstly require libiberty.a,
160 # so we configure then build it.
161 # Next we have to configure gcc, create libgcc.mk then edit it...
162 # So much easier if we just edit the source tree, but hey...
163 if [ ! -f "${CT_SRC_DIR}/${CT_CC_FILE}/gcc/BASE-VER" ]; then
164 CT_DoExecLog ALL make configure-libiberty
165 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
166 CT_DoExecLog ALL make configure-gcc configure-libcpp
167 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
169 CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
170 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
172 # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
173 if [ -d "${CT_SRC_DIR}/${CT_CC_FILE}/libdecnumber" ]; then
174 CT_DoExecLog ALL make configure-libdecnumber
175 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
178 # Starting with GCC 4.3, libgcc.mk is no longer built,
179 # and libgcc.mvars is used instead.
181 if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
182 libgcc_rule="libgcc.mvars"
183 build_rules="all-gcc all-target-libgcc"
184 install_rules="install-gcc install-target-libgcc"
186 libgcc_rule="libgcc.mk"
187 build_rules="all-gcc"
188 install_rules="install-gcc"
191 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule}
192 sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
194 build_rules="all-gcc"
195 install_rules="install-gcc"
198 if [ "${CT_CANADIAN}" = "y" ]; then
199 CT_DoLog EXTRA "Building libiberty"
200 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
203 CT_DoLog EXTRA "Building ${mode} core C compiler"
204 CT_DoExecLog ALL make ${PARALLELMFLAGS} ${build_rules}
206 CT_DoLog EXTRA "Installing ${mode} core C compiler"
207 CT_DoExecLog ALL make ${install_rules}
212 #------------------------------------------------------------------------------
215 # If building for bare metal, nothing to be done here, the static core conpiler is enough!
216 [ "${CT_BARE_METAL}" = "y" ] && return 0
218 CT_DoStep INFO "Installing final compiler"
220 mkdir -p "${CT_BUILD_DIR}/build-cc"
221 cd "${CT_BUILD_DIR}/build-cc"
223 CT_DoLog EXTRA "Configuring final compiler"
225 # Enable selected languages
227 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
228 [ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_opt="${lang_opt},fortran"
229 [ "${CT_CC_LANG_ADA}" = "y" ] && lang_opt="${lang_opt},ada"
230 [ "${CT_CC_LANG_JAVA}" = "y" ] && lang_opt="${lang_opt},java"
231 [ "${CT_CC_LANG_OBJC}" = "y" ] && lang_opt="${lang_opt},objc"
232 [ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_opt="${lang_opt},obj-c++"
233 CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
234 CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
235 CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
236 CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
237 lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
239 extra_config="--enable-languages=${lang_opt}"
240 extra_config="${extra_config} --disable-multilib"
241 extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"
242 extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"
243 extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"
244 extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"
245 extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"
246 extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"
247 [ "${CT_SHARED_LIBS}" = "y" ] || extra_config="${extra_config} --disable-shared"
248 [ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
249 [ -n "${CT_CC_PKGVERSION}" ] && extra_config="${extra_config} --with-pkgversion=${CT_CC_PKGVERSION}"
250 [ -n "${CT_CC_BUGURL}" ] && extra_config="${extra_config} --with-bugurl=${CT_CC_BUGURL}"
251 [ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ] && extra_config="${extra_config} --enable-sjlj-exceptions"
252 [ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ] && extra_config="${extra_config} --disable-sjlj-exceptions"
253 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
254 extra_config="${extra_config} --enable-__cxa_atexit"
256 extra_config="${extra_config} --disable-__cxa_atexit"
259 CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
261 # --enable-symvers=gnu really only needed for sh4 to work around a
262 # detection problem only matters for gcc-3.2.x and later, I think.
263 # --disable-nls to work around crash bug on ppc405, but also because
264 # embedded systems don't really need message catalogs...
265 CC_FOR_BUILD="${CT_BUILD}-gcc" \
266 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
267 CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
268 CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
269 LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
271 "${CT_SRC_DIR}/${CT_CC_FILE}/configure" \
272 --build=${CT_BUILD} \
274 --target=${CT_TARGET} \
275 --prefix="${CT_PREFIX_DIR}" \
278 --with-local-prefix="${CT_SYSROOT_DIR}" \
280 --enable-threads=posix \
281 --enable-symvers=gnu \
284 --enable-target-optspace \
285 ${CT_CC_EXTRA_CONFIG}
287 if [ "${CT_CANADIAN}" = "y" ]; then
288 CT_DoLog EXTRA "Building libiberty"
289 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
292 CT_DoLog EXTRA "Building final compiler"
293 CT_DoExecLog ALL make ${PARALLELMFLAGS} all
295 CT_DoLog EXTRA "Installing final compiler"
296 CT_DoExecLog ALL make install
298 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
299 # to call the C compiler with the same, somewhat canonical name.
300 CT_DoExecLog ALL ln -sv "${CT_TARGET}"-gcc "${CT_PREFIX_DIR}/bin/${CT_TARGET}"-cc