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-${CT_CC_VERSION}/ecj.jar"
41 #------------------------------------------------------------------------------
44 # If we're building for bare metal, build the static core gcc,
46 # In case we're not bare metal, and we're NPTL, build the static core gcc.
47 # In any other case, do nothing.
48 case "${CT_BARE_METAL},${CT_THREADS}" in
49 y,*) do_cc_core mode=baremetal build_libgcc=yes;;
50 ,nptl) do_cc_core mode=static build_libgcc=no;;
57 # In case we're building for bare metal, do nothing, we already have
59 # In case we're NPTL, build the shared core gcc and the target libgcc.
60 # In any other case, build the static core gcc and, if using gcc-4.3+,
61 # also build the target libgcc.
62 case "${CT_BARE_METAL},${CT_THREADS}" in
65 do_cc_core mode=shared build_libgcc=yes
67 *) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
68 do_cc_core mode=static build_libgcc=yes
70 do_cc_core mode=static build_libgcc=no
76 #------------------------------------------------------------------------------
78 # This function is used to build both the static and the shared core C conpiler,
79 # with or without the target libgcc. We need to know wether:
80 # - we're building static, shared or bare metal: mode=[static|shared|baremetal]
81 # - we need to build libgcc or not : build_libgcc=[yes|no]
82 # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
92 CT_TestOrAbort "Internal Error: 'mode' must either 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'" "${mode}" = "static" -o "${mode}" = "shared" -o "${mode}" = "baremetal"
93 CT_TestOrAbort "Internal Error: 'build_libgcc' must be either 'yes' or 'no', not '${build_libgcc:-(empty)}'" "${build_libgcc}" = "yes" -o "${build_libgcc}" = "no"
94 # In normal conditions, ( "${mode}" = "shared" ) implies
95 # ( "${build_libgcc}" = "yes" ), but I won't check for that
97 CT_DoStep INFO "Installing ${mode} core C compiler"
98 mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
99 cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
104 core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
105 extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"
109 core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
110 extra_config="${extra_config} --enable-shared"
114 core_prefix_dir="${CT_PREFIX_DIR}"
115 extra_config="${extra_config} --with-newlib --enable-threads=no --disable-shared"
116 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
121 if [ "${copy_headers}" = "y" ]; then
122 CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
123 CT_DoExecLog ALL mkdir -p "${core_prefix_dir}/${CT_TARGET}/include"
124 CT_DoExecLog ALL cp -r "${CT_HEADERS_DIR}"/* "${core_prefix_dir}/${CT_TARGET}/include"
127 CT_DoLog EXTRA "Configuring ${mode} core C compiler"
129 extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"
130 extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"
131 extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"
132 extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"
133 extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"
134 extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"
135 [ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
136 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
137 extra_config="${extra_config} --enable-__cxa_atexit"
139 extra_config="${extra_config} --disable-__cxa_atexit"
142 CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
144 # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
145 CC_FOR_BUILD="${CT_BUILD}-gcc" \
146 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
148 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
149 --build=${CT_BUILD} \
151 --target=${CT_TARGET} \
152 --prefix="${core_prefix_dir}" \
153 --with-local-prefix="${CT_SYSROOT_DIR}" \
155 ${CC_CORE_SYSROOT_ARG} \
158 --enable-symvers=gnu \
159 --enable-languages="${lang_opt}" \
160 --enable-target-optspace \
161 ${CT_CC_CORE_EXTRA_CONFIG}
163 if [ "${build_libgcc}" = "yes" ]; then
164 # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
165 # gcc/config/t-libunwind so -lc is removed from the link for
166 # libgcc_s.so, as we do not have a target -lc yet.
167 # This is not as ugly as it appears to be ;-) All symbols get resolved
168 # during the glibc build, and we provide a proper libgcc_s.so for the
169 # cross toolchain during the final gcc build.
171 # As we cannot modify the source tree, nor override SHLIB_LC itself
172 # during configure or make, we have to edit the resultant
173 # gcc/libgcc.mk itself to remove -lc from the link.
174 # This causes us to have to jump through some hoops...
176 # To produce libgcc.mk to edit we firstly require libiberty.a,
177 # so we configure then build it.
178 # Next we have to configure gcc, create libgcc.mk then edit it...
179 # So much easier if we just edit the source tree, but hey...
180 if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
181 CT_DoExecLog ALL make configure-libiberty
182 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
183 CT_DoExecLog ALL make configure-gcc configure-libcpp
184 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
186 CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
187 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
189 # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
190 if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
191 CT_DoExecLog ALL make configure-libdecnumber
192 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
195 # Starting with GCC 4.3, libgcc.mk is no longer built,
196 # and libgcc.mvars is used instead.
198 if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
199 libgcc_rule="libgcc.mvars"
200 build_rules="all-gcc all-target-libgcc"
201 install_rules="install-gcc install-target-libgcc"
203 libgcc_rule="libgcc.mk"
204 build_rules="all-gcc"
205 install_rules="install-gcc"
208 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule}
209 sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
211 build_rules="all-gcc"
212 install_rules="install-gcc"
215 if [ "${CT_CANADIAN}" = "y" ]; then
216 CT_DoLog EXTRA "Building libiberty"
217 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
220 CT_DoLog EXTRA "Building ${mode} core C compiler"
221 CT_DoExecLog ALL make ${PARALLELMFLAGS} ${build_rules}
223 CT_DoLog EXTRA "Installing ${mode} core C compiler"
224 CT_DoExecLog ALL make ${install_rules}
226 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
227 # to call the C compiler with the same, somewhat canonical name.
228 CT_DoExecLog ALL ln -sv "${CT_TARGET}"-gcc "${core_prefix_dir}/bin/${CT_TARGET}"-cc
233 #------------------------------------------------------------------------------
236 # If building for bare metal, nothing to be done here, the static core conpiler is enough!
237 [ "${CT_BARE_METAL}" = "y" ] && return 0
239 CT_DoStep INFO "Installing final compiler"
241 mkdir -p "${CT_BUILD_DIR}/build-cc"
242 cd "${CT_BUILD_DIR}/build-cc"
244 CT_DoLog EXTRA "Configuring final compiler"
246 # Enable selected languages
248 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
249 [ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_opt="${lang_opt},fortran"
250 [ "${CT_CC_LANG_ADA}" = "y" ] && lang_opt="${lang_opt},ada"
251 [ "${CT_CC_LANG_JAVA}" = "y" ] && lang_opt="${lang_opt},java"
252 [ "${CT_CC_LANG_OBJC}" = "y" ] && lang_opt="${lang_opt},objc"
253 [ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_opt="${lang_opt},obj-c++"
254 CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
255 CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
256 CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
257 CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
258 lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
260 extra_config="--enable-languages=${lang_opt}"
261 extra_config="${extra_config} --disable-multilib"
262 extra_config="${extra_config} ${CT_ARCH_WITH_ARCH}"
263 extra_config="${extra_config} ${CT_ARCH_WITH_ABI}"
264 extra_config="${extra_config} ${CT_ARCH_WITH_CPU}"
265 extra_config="${extra_config} ${CT_ARCH_WITH_TUNE}"
266 extra_config="${extra_config} ${CT_ARCH_WITH_FPU}"
267 extra_config="${extra_config} ${CT_ARCH_WITH_FLOAT}"
268 [ "${CT_SHARED_LIBS}" = "y" ] || extra_config="${extra_config} --disable-shared"
269 [ "${CT_GMP_MPFR}" = "y" ] && extra_config="${extra_config} --with-gmp=${CT_PREFIX_DIR} --with-mpfr=${CT_PREFIX_DIR}"
270 [ -n "${CT_CC_PKGVERSION}" ] && extra_config="${extra_config} --with-pkgversion=${CT_CC_PKGVERSION}"
271 [ -n "${CT_CC_BUGURL}" ] && extra_config="${extra_config} --with-bugurl=${CT_CC_BUGURL}"
272 [ "${CT_CC_SJLJ_EXCEPTIONS_USE}" = "y" ] && extra_config="${extra_config} --enable-sjlj-exceptions"
273 [ "${CT_CC_SJLJ_EXCEPTIONS_DONT_USE}" = "y" ] && extra_config="${extra_config} --disable-sjlj-exceptions"
274 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
275 extra_config="${extra_config} --enable-__cxa_atexit"
277 extra_config="${extra_config} --disable-__cxa_atexit"
280 CT_DoLog DEBUG "Extra config passed: '${extra_config}'"
282 # --enable-symvers=gnu really only needed for sh4 to work around a
283 # detection problem only matters for gcc-3.2.x and later, I think.
284 # --disable-nls to work around crash bug on ppc405, but also because
285 # embedded systems don't really need message catalogs...
286 CC_FOR_BUILD="${CT_BUILD}-gcc" \
287 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
288 CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
289 CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
290 LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
292 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
293 --build=${CT_BUILD} \
295 --target=${CT_TARGET} \
296 --prefix="${CT_PREFIX_DIR}" \
299 --with-local-prefix="${CT_SYSROOT_DIR}" \
301 --enable-threads=posix \
302 --enable-symvers=gnu \
305 --enable-target-optspace \
306 ${CT_CC_EXTRA_CONFIG}
308 if [ "${CT_CANADIAN}" = "y" ]; then
309 CT_DoLog EXTRA "Building libiberty"
310 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
313 CT_DoLog EXTRA "Building final compiler"
314 CT_DoExecLog ALL make ${PARALLELMFLAGS} all
316 CT_DoLog EXTRA "Installing final compiler"
317 CT_DoExecLog ALL make install
319 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
320 # to call the C compiler with the same, somewhat canonical name.
321 CT_DoExecLog ALL ln -sv "${CT_TARGET}"-gcc "${CT_PREFIX_DIR}/bin/${CT_TARGET}"-cc