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},${CT_THREADS}" in
66 y,*,*) do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes;;
69 do_cc_core mode=shared build_libgcc=yes
71 ,,win32) do_cc_core mode=static build_libgcc=yes
73 *) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
74 do_cc_core mode=static build_libgcc=yes
76 do_cc_core mode=static
82 #------------------------------------------------------------------------------
84 # This function is used to build both the static and the shared core C conpiler,
85 # with or without the target libgcc. We need to know wether:
86 # - we're building static, shared or bare metal: mode=[static|shared|baremetal]
87 # - we need to build libgcc or not : build_libgcc=[yes|no] (default: no)
88 # - we need to build libstdc++ or not : build_libstdcxx=[yes|no] (default: no)
89 # Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
93 local build_libstdcxx=no
101 while [ $# -ne 0 ]; do
109 core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
110 extra_config+=("--with-newlib")
111 extra_config+=("--enable-threads=no")
112 extra_config+=("--disable-shared")
113 copy_headers=y # For baremetal, as there's no headers to copy,
114 # we copy an empty directory. So, who cares?
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++"
130 CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'"
134 CT_DoStep INFO "Installing ${mode} core C compiler"
135 mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
136 cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
138 # Bare metal delivers the core compiler as final compiler, so add version info and bugurl
139 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
140 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
142 if [ "${copy_headers}" = "y" ]; then
143 CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
144 CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${core_prefix_dir}/${CT_TARGET}/include"
147 CT_DoLog EXTRA "Configuring ${mode} core C compiler"
149 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
150 eval tmp="\${CT_ARCH_WITH_${tmp}}"
151 if [ -n "${tmp}" ]; then
152 extra_config+=("${tmp}")
155 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
156 extra_config+=("--enable-__cxa_atexit")
158 extra_config+=("--disable-__cxa_atexit")
161 # When companion libraries are build static (eg !shared),
162 # the libstdc++ is not pulled automatically, although it
163 # is needed. Shoe-horn it in our LDFLAGS
164 # Ditto libm on some Fedora boxen
165 if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
166 core_LDFLAGS='-lstdc++ -lm'
168 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
169 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
170 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
172 if [ "${CT_CC_GCC_USE_PPL_CLOOG}" = "y" ]; then
173 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
174 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
176 if [ "${CT_CC_GCC_USE_MPC_LIBELF}" = "y" ]; then
177 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
178 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
181 if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
182 extra_config+=("--enable-target-optspace")
185 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
187 # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
188 CC_FOR_BUILD="${CT_BUILD}-gcc" \
189 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
190 LDFLAGS="${core_LDFLAGS}" \
192 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
193 --build=${CT_BUILD} \
195 --target=${CT_TARGET} \
196 --prefix="${core_prefix_dir}" \
197 --with-local-prefix="${CT_SYSROOT_DIR}" \
199 --disable-libmudflap \
200 ${CC_CORE_SYSROOT_ARG} \
201 "${extra_config[@]}" \
203 --enable-symvers=gnu \
204 --enable-languages="${lang_opt}" \
205 ${CT_CC_CORE_EXTRA_CONFIG}
207 if [ "${build_libgcc}" = "yes" ]; then
208 # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
209 # gcc/config/t-libunwind so -lc is removed from the link for
210 # libgcc_s.so, as we do not have a target -lc yet.
211 # This is not as ugly as it appears to be ;-) All symbols get resolved
212 # during the glibc build, and we provide a proper libgcc_s.so for the
213 # cross toolchain during the final gcc build.
215 # As we cannot modify the source tree, nor override SHLIB_LC itself
216 # during configure or make, we have to edit the resultant
217 # gcc/libgcc.mk itself to remove -lc from the link.
218 # This causes us to have to jump through some hoops...
220 # To produce libgcc.mk to edit we firstly require libiberty.a,
221 # so we configure then build it.
222 # Next we have to configure gcc, create libgcc.mk then edit it...
223 # So much easier if we just edit the source tree, but hey...
224 if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
225 CT_DoExecLog ALL make configure-libiberty
226 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
227 CT_DoExecLog ALL make configure-gcc configure-libcpp
228 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
230 CT_DoExecLog ALL make configure-gcc configure-libcpp configure-build-libiberty
231 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
233 # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
234 if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
235 CT_DoExecLog ALL make configure-libdecnumber
236 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
239 # Starting with GCC 4.3, libgcc.mk is no longer built,
240 # and libgcc.mvars is used instead.
242 if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
243 libgcc_rule="libgcc.mvars"
244 core_targets=( gcc target-libgcc )
246 libgcc_rule="libgcc.mk"
250 # On bare metal and canadian build the host-compiler is used when
251 # actually the build-system compiler is required. Choose the correct
252 # compilers for canadian build and use the defaults on other
254 if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then
255 repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \
256 GCC_FOR_TARGET=${CT_TARGET}-gcc"
261 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule} \
263 sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
267 if [ "${build_libstdcxx}" = "yes" \
268 -a "${CT_CC_LANG_CXX}" = "y" \
270 core_targets+=( target-libstdc++-v3 )
273 CT_DoLog EXTRA "Building ${mode} core C compiler"
274 CT_DoExecLog ALL make ${PARALLELMFLAGS} "${core_targets[@]/#/all-}"
276 CT_DoLog EXTRA "Installing ${mode} core C compiler"
277 CT_DoExecLog ALL make "${core_targets[@]/#/install-}"
279 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
280 # to call the C compiler with the same, somewhat canonical name.
281 # check whether compiler has an extension
282 file="$( ls -1 "${core_prefix_dir}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
283 [ -z "${file}" ] || ext=".${file##*.}"
284 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${core_prefix_dir}/bin/${CT_TARGET}-cc${ext}"
289 #------------------------------------------------------------------------------
292 local -a extra_config
296 # If building for bare metal, nothing to be done here, the static core conpiler is enough!
297 [ "${CT_BARE_METAL}" = "y" ] && return 0
299 CT_DoStep INFO "Installing final compiler"
301 mkdir -p "${CT_BUILD_DIR}/build-cc"
302 cd "${CT_BUILD_DIR}/build-cc"
304 CT_DoLog EXTRA "Configuring final compiler"
306 # Enable selected languages
308 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
309 [ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_opt="${lang_opt},fortran"
310 [ "${CT_CC_LANG_ADA}" = "y" ] && lang_opt="${lang_opt},ada"
311 [ "${CT_CC_LANG_JAVA}" = "y" ] && lang_opt="${lang_opt},java"
312 [ "${CT_CC_LANG_OBJC}" = "y" ] && lang_opt="${lang_opt},objc"
313 [ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_opt="${lang_opt},obj-c++"
314 CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
315 CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
316 CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
317 CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
318 lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
320 extra_config+=("--enable-languages=${lang_opt}")
321 extra_config+=("--disable-multilib")
322 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
323 eval tmp="\${CT_ARCH_WITH_${tmp}}"
324 if [ -n "${tmp}" ]; then
325 extra_config+=("${tmp}")
329 [ "${CT_SHARED_LIBS}" = "y" ] || extra_config+=("--disable-shared")
330 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
331 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
332 case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in
333 y) extra_config+=("--enable-sjlj-exceptions");;
335 "") extra_config+=("--disable-sjlj-exceptions");;
337 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
338 extra_config+=("--enable-__cxa_atexit")
340 extra_config+=("--disable-__cxa_atexit")
342 if [ -n "${CC_ENABLE_CXX_FLAGS}" ]; then
343 extra_config+=("--enable-cxx-flags=${CC_ENABLE_CXX_FLAGS}")
345 if [ "${CT_CC_GCC_LIBMUDFLAP}" = "y" ]; then
346 extra_config+=(--enable-libmudflap)
348 extra_config+=(--disable-libmudflap)
351 if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
352 # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
354 # FIXME: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
355 # see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
356 extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm")
357 elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
358 # When companion libraries are build static (eg !shared),
359 # the libstdc++ is not pulled automatically, although it
360 # is needed. Shoe-horn it in our LDFLAGS
361 # Ditto libm on some Fedora boxen
362 final_LDFLAGS='-lstdc++ -lm'
364 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
365 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
366 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
368 if [ "${CT_CC_GCC_USE_PPL_CLOOG}" = "y" ]; then
369 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
370 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
372 if [ "${CT_CC_GCC_USE_MPC_LIBELF}" = "y" ]; then
373 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
374 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
377 if [ "${CT_THREADS}" = "none" ]; then
378 extra_config+=("--disable-threads")
379 if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
380 extra_config+=("--disable-libgomp")
383 if [ "${CT_THREADS}" = "win32" ]; then
384 extra_config+=("--enable-threads=win32")
385 extra_config+=("--disable-win32-registry")
387 extra_config+=("--enable-threads=posix")
391 if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
392 extra_config+=("--enable-target-optspace")
394 if [ "${CT_CC_GCC_DISABLE_PCH}" = "y" ]; then
395 extra_config+=("--disable-libstdcxx-pch")
398 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
400 # --enable-symvers=gnu really only needed for sh4 to work around a
401 # detection problem only matters for gcc-3.2.x and later, I think.
402 # --disable-nls to work around crash bug on ppc405, but also because
403 # embedded systems don't really need message catalogs...
404 CC_FOR_BUILD="${CT_BUILD}-gcc" \
405 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
406 LDFLAGS="${final_LDFLAGS}" \
407 CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
408 CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
409 LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
411 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
412 --build=${CT_BUILD} \
414 --target=${CT_TARGET} \
415 --prefix="${CT_PREFIX_DIR}" \
417 "${extra_config[@]}" \
418 --with-local-prefix="${CT_SYSROOT_DIR}" \
420 --enable-symvers=gnu \
423 ${CT_CC_EXTRA_CONFIG}
425 if [ "${CT_CANADIAN}" = "y" ]; then
426 CT_DoLog EXTRA "Building libiberty"
427 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
430 CT_DoLog EXTRA "Building final compiler"
431 CT_DoExecLog ALL make ${PARALLELMFLAGS} all
433 CT_DoLog EXTRA "Installing final compiler"
434 CT_DoExecLog ALL make install
436 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
437 # to call the C compiler with the same, somewhat canonical name.
438 # check whether compiler has an extension
439 file="$( ls -1 "${CT_PREFIX_DIR}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
440 [ -z "${file}" ] || ext=".${file##*.}"
441 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-cc${ext}"