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},${CT_THREADS}" in
67 if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then
68 do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes build_staticlinked=yes
70 do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes
75 do_cc_core mode=shared build_libgcc=yes
78 do_cc_core mode=static build_libgcc=yes
80 *) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
81 do_cc_core mode=static build_libgcc=yes
83 do_cc_core mode=static
89 #------------------------------------------------------------------------------
91 # This function is used to build both the static and the shared core C conpiler,
92 # with or without the target libgcc. We need to know wether:
93 # - we're building static, shared or bare metal: mode=[static|shared|baremetal]
94 # - we need to build libgcc or not : build_libgcc=[yes|no] (default: no)
95 # - we need to build libstdc++ or not : build_libstdcxx=[yes|no] (default: no)
96 # - we need to build statically linked or not : build_staticlinked=[yes|no] (default: no)
97 # Usage: do_cc_core mode=[static|shared|baremetal] build_libgcc=[yes|no] build_staticlinked=[yes|no]
100 local build_libgcc=no
101 local build_libstdcxx=no
102 local build_staticlinked=no
103 local core_prefix_dir
106 local -a extra_config
107 local -a core_LDFLAGS
108 local -a core_targets
110 while [ $# -ne 0 ]; do
118 core_prefix_dir="${CT_CC_CORE_STATIC_PREFIX_DIR}"
119 extra_config+=("--with-newlib")
120 extra_config+=("--enable-threads=no")
121 extra_config+=("--disable-shared")
122 copy_headers=y # For baremetal, as there's no headers to copy,
123 # we copy an empty directory. So, who cares?
126 core_prefix_dir="${CT_CC_CORE_SHARED_PREFIX_DIR}"
127 extra_config+=("--enable-shared")
131 core_prefix_dir="${CT_PREFIX_DIR}"
132 extra_config+=("--with-newlib")
133 extra_config+=("--enable-threads=no")
134 extra_config+=("--disable-shared")
135 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
139 CT_Abort "Internal Error: 'mode' must be one of: 'static', 'shared' or 'baremetal', not '${mode:-(empty)}'"
143 CT_DoStep INFO "Installing ${mode} core C compiler"
144 mkdir -p "${CT_BUILD_DIR}/build-cc-core-${mode}"
145 cd "${CT_BUILD_DIR}/build-cc-core-${mode}"
147 # Bare metal delivers the core compiler as final compiler, so add version info and bugurl
148 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
149 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
151 if [ "${copy_headers}" = "y" ]; then
152 CT_DoLog DEBUG "Copying headers to install area of bootstrap gcc, so it can build libgcc2"
153 CT_DoExecLog ALL cp -a "${CT_HEADERS_DIR}" "${core_prefix_dir}/${CT_TARGET}/include"
156 CT_DoLog EXTRA "Configuring ${mode} core C compiler"
158 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
159 eval tmp="\${CT_ARCH_WITH_${tmp}}"
160 if [ -n "${tmp}" ]; then
161 extra_config+=("${tmp}")
164 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
165 extra_config+=("--enable-__cxa_atexit")
167 extra_config+=("--disable-__cxa_atexit")
171 # Keep this full if-else-if-elif-fi-fi block in sync
172 # with the same block in do_cc, below.
173 if [ "${build_staticlinked}" = "yes" ]; then
174 core_LDFLAGS+=("-static")
175 extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++ -lm")
176 # Companion libraries are build static (eg !shared), so
177 # the libstdc++ is not pulled automatically, although it
178 # is needed. Shoe-horn it in our LDFLAGS
179 # Ditto libm on some Fedora boxen
180 final_LDFLAGS+=("-lstdc++")
181 final_LDFLAGS+=("-lm")
183 if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
184 # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
186 # FIXME: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
187 # see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
188 extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm")
189 elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
190 # When companion libraries are build static (eg !shared),
191 # the libstdc++ is not pulled automatically, although it
192 # is needed. Shoe-horn it in our LDFLAGS
193 # Ditto libm on some Fedora boxen
194 core_LDFLAGS+=("-lstdc++")
195 core_LDFLAGS+=("-lm")
199 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
200 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
201 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
203 if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
204 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
206 if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
207 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
208 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
209 elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
210 extra_config+=("--with-ppl=no")
211 extra_config+=("--with-cloog=no")
213 if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
214 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
215 extra_config+=("--enable-lto")
216 elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
217 extra_config+=("--with-libelf=no")
218 extra_config+=("--disable-lto")
221 if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
222 extra_config+=("--enable-target-optspace")
225 case "${CT_CC_GCC_LDBL_128}" in
226 y) extra_config+=("--with-long-double-128");;
228 "") extra_config+=("--without-long-double-128");;
231 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
233 # Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
234 CC_FOR_BUILD="${CT_BUILD}-gcc" \
235 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
236 LDFLAGS="${core_LDFLAGS[*]}" \
238 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
239 --build=${CT_BUILD} \
241 --target=${CT_TARGET} \
242 --prefix="${core_prefix_dir}" \
243 --with-local-prefix="${CT_SYSROOT_DIR}" \
245 --disable-libmudflap \
246 ${CC_CORE_SYSROOT_ARG} \
247 "${extra_config[@]}" \
249 --enable-symvers=gnu \
250 --enable-languages="${lang_opt}" \
251 ${CT_CC_CORE_EXTRA_CONFIG}
253 if [ "${build_libgcc}" = "yes" ]; then
254 # HACK: we need to override SHLIB_LC from gcc/config/t-slibgcc-elf-ver or
255 # gcc/config/t-libunwind so -lc is removed from the link for
256 # libgcc_s.so, as we do not have a target -lc yet.
257 # This is not as ugly as it appears to be ;-) All symbols get resolved
258 # during the glibc build, and we provide a proper libgcc_s.so for the
259 # cross toolchain during the final gcc build.
261 # As we cannot modify the source tree, nor override SHLIB_LC itself
262 # during configure or make, we have to edit the resultant
263 # gcc/libgcc.mk itself to remove -lc from the link.
264 # This causes us to have to jump through some hoops...
266 # To produce libgcc.mk to edit we firstly require libiberty.a,
267 # so we configure then build it.
268 # Next we have to configure gcc, create libgcc.mk then edit it...
269 # So much easier if we just edit the source tree, but hey...
270 if [ ! -f "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/gcc/BASE-VER" ]; then
271 CT_DoExecLog CFG make configure-libiberty
272 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libiberty libiberty.a
273 CT_DoExecLog CFG make configure-gcc configure-libcpp
274 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp
276 CT_DoExecLog CFG make configure-gcc configure-libcpp configure-build-libiberty
277 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-libcpp all-build-libiberty
279 # HACK: gcc-4.2 uses libdecnumber to build libgcc.mk, so build it here.
280 if [ -d "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/libdecnumber" ]; then
281 CT_DoExecLog CFG make configure-libdecnumber
282 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C libdecnumber libdecnumber.a
285 # Starting with GCC 4.3, libgcc.mk is no longer built,
286 # and libgcc.mvars is used instead.
288 if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
289 libgcc_rule="libgcc.mvars"
290 core_targets=( gcc target-libgcc )
292 libgcc_rule="libgcc.mk"
296 # On bare metal and canadian build the host-compiler is used when
297 # actually the build-system compiler is required. Choose the correct
298 # compilers for canadian build and use the defaults on other
300 if [ "${CT_BARE_METAL},${CT_CANADIAN}" = "y,y" ]; then
301 repair_cc="CC_FOR_BUILD=${CT_BUILD}-gcc \
302 GCC_FOR_TARGET=${CT_TARGET}-gcc"
307 CT_DoExecLog ALL make ${PARALLELMFLAGS} -C gcc ${libgcc_rule} \
309 sed -r -i -e 's@-lc@@g' gcc/${libgcc_rule}
313 if [ "${build_libstdcxx}" = "yes" \
314 -a "${CT_CC_LANG_CXX}" = "y" \
316 core_targets+=( target-libstdc++-v3 )
319 CT_DoLog EXTRA "Building ${mode} core C compiler"
320 CT_DoExecLog ALL make ${PARALLELMFLAGS} "${core_targets[@]/#/all-}"
322 CT_DoLog EXTRA "Installing ${mode} core C compiler"
323 CT_DoExecLog ALL make "${core_targets[@]/#/install-}"
325 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
326 # to call the C compiler with the same, somewhat canonical name.
327 # check whether compiler has an extension
328 file="$( ls -1 "${core_prefix_dir}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
329 [ -z "${file}" ] || ext=".${file##*.}"
330 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${core_prefix_dir}/bin/${CT_TARGET}-cc${ext}"
335 #------------------------------------------------------------------------------
338 local -a extra_config
339 local -a final_LDFLAGS
342 # If building for bare metal, nothing to be done here, the static core conpiler is enough!
343 [ "${CT_BARE_METAL}" = "y" ] && return 0
345 CT_DoStep INFO "Installing final compiler"
347 mkdir -p "${CT_BUILD_DIR}/build-cc"
348 cd "${CT_BUILD_DIR}/build-cc"
350 CT_DoLog EXTRA "Configuring final compiler"
352 # Enable selected languages
354 [ "${CT_CC_LANG_CXX}" = "y" ] && lang_opt="${lang_opt},c++"
355 [ "${CT_CC_LANG_FORTRAN}" = "y" ] && lang_opt="${lang_opt},fortran"
356 [ "${CT_CC_LANG_ADA}" = "y" ] && lang_opt="${lang_opt},ada"
357 [ "${CT_CC_LANG_JAVA}" = "y" ] && lang_opt="${lang_opt},java"
358 [ "${CT_CC_LANG_OBJC}" = "y" ] && lang_opt="${lang_opt},objc"
359 [ "${CT_CC_LANG_OBJCXX}" = "y" ] && lang_opt="${lang_opt},obj-c++"
360 CT_Test "Building ADA language is not yet supported. Will try..." "${CT_CC_LANG_ADA}" = "y"
361 CT_Test "Building Objective-C language is not yet supported. Will try..." "${CT_CC_LANG_OBJC}" = "y"
362 CT_Test "Building Objective-C++ language is not yet supported. Will try..." "${CT_CC_LANG_OBJCXX}" = "y"
363 CT_Test "Building ${CT_CC_LANG_OTHERS//,/ } language(s) is not yet supported. Will try..." -n "${CT_CC_LANG_OTHERS}"
364 lang_opt=$(echo "${lang_opt},${CT_CC_LANG_OTHERS}" |sed -r -e 's/,+/,/g; s/,*$//;')
366 extra_config+=("--enable-languages=${lang_opt}")
367 extra_config+=("--disable-multilib")
368 for tmp in ARCH ABI CPU TUNE FPU FLOAT; do
369 eval tmp="\${CT_ARCH_WITH_${tmp}}"
370 if [ -n "${tmp}" ]; then
371 extra_config+=("${tmp}")
375 [ "${CT_SHARED_LIBS}" = "y" ] || extra_config+=("--disable-shared")
376 [ -n "${CT_CC_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_CC_PKGVERSION}")
377 [ -n "${CT_CC_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_CC_BUGURL}")
378 case "${CT_CC_GCC_SJLJ_EXCEPTIONS}" in
379 y) extra_config+=("--enable-sjlj-exceptions");;
381 "") extra_config+=("--disable-sjlj-exceptions");;
383 if [ "${CT_CC_CXA_ATEXIT}" = "y" ]; then
384 extra_config+=("--enable-__cxa_atexit")
386 extra_config+=("--disable-__cxa_atexit")
388 if [ -n "${CC_ENABLE_CXX_FLAGS}" ]; then
389 extra_config+=("--enable-cxx-flags=${CC_ENABLE_CXX_FLAGS}")
391 if [ "${CT_CC_GCC_LIBMUDFLAP}" = "y" ]; then
392 extra_config+=(--enable-libmudflap)
394 extra_config+=(--disable-libmudflap)
396 if [ "${CT_CC_GCC_LIBGOMP}" = "y" ]; then
397 extra_config+=(--enable-libgomp)
399 extra_config+=(--disable-libgomp)
401 if [ "${CT_CC_GCC_LIBSSP}" = "y" ]; then
402 extra_config+=(--enable-libssp)
404 extra_config+=(--disable-libssp)
408 # Keep this full if-else-if-elif-fi-fi block in sync
409 # with the same block in do_cc_core, above.
410 if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then
411 final_LDFLAGS+=("-static")
412 extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++ -lm")
413 # Companion libraries are build static (eg !shared), so
414 # the libstdc++ is not pulled automatically, although it
415 # is needed. Shoe-horn it in our LDFLAGS
416 # Ditto libm on some Fedora boxen
417 final_LDFLAGS+=("-lstdc++")
418 final_LDFLAGS+=("-lm")
420 if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
421 # this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
423 # FIXME: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
424 # see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
425 extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm")
426 elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
427 # When companion libraries are build static (eg !shared),
428 # the libstdc++ is not pulled automatically, although it
429 # is needed. Shoe-horn it in our LDFLAGS
430 # Ditto libm on some Fedora boxen
431 final_LDFLAGS+=("-lstdc++")
432 final_LDFLAGS+=("-lm")
436 if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
437 extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
438 extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
440 if [ "${CT_CC_GCC_USE_MPC}" = "y" ]; then
441 extra_config+=("--with-mpc=${CT_COMPLIBS_DIR}")
443 if [ "${CT_CC_GCC_USE_GRAPHITE}" = "y" ]; then
444 extra_config+=("--with-ppl=${CT_COMPLIBS_DIR}")
445 extra_config+=("--with-cloog=${CT_COMPLIBS_DIR}")
446 elif [ "${CT_CC_GCC_HAS_GRAPHITE}" = "y" ]; then
447 extra_config+=("--with-ppl=no")
448 extra_config+=("--with-cloog=no")
450 if [ "${CT_CC_GCC_USE_LTO}" = "y" ]; then
451 extra_config+=("--with-libelf=${CT_COMPLIBS_DIR}")
452 elif [ "${CT_CC_GCC_HAS_LTO}" = "y" ]; then
453 extra_config+=("--with-libelf=no")
456 if [ "${CT_THREADS}" = "none" ]; then
457 extra_config+=("--disable-threads")
458 if [ "${CT_CC_GCC_4_2_or_later}" = y ]; then
459 CT_Test "Disabling libgomp for no-thread gcc>=4.2" "${CT_CC_GCC_LIBGOMP}" = "Y"
460 extra_config+=("--disable-libgomp")
463 if [ "${CT_THREADS}" = "win32" ]; then
464 extra_config+=("--enable-threads=win32")
465 extra_config+=("--disable-win32-registry")
467 extra_config+=("--enable-threads=posix")
471 if [ "${CT_CC_GCC_ENABLE_TARGET_OPTSPACE}" = "y" ]; then
472 extra_config+=("--enable-target-optspace")
474 if [ "${CT_CC_GCC_DISABLE_PCH}" = "y" ]; then
475 extra_config+=("--disable-libstdcxx-pch")
478 case "${CT_CC_GCC_LDBL_128}" in
479 y) extra_config+=("--with-long-double-128");;
481 "") extra_config+=("--without-long-double-128");;
484 CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
486 # --enable-symvers=gnu really only needed for sh4 to work around a
487 # detection problem only matters for gcc-3.2.x and later, I think.
488 # --disable-nls to work around crash bug on ppc405, but also because
489 # embedded systems don't really need message catalogs...
490 CC_FOR_BUILD="${CT_BUILD}-gcc" \
491 CFLAGS="${CT_CFLAGS_FOR_HOST}" \
492 LDFLAGS="${final_LDFLAGS[*]}" \
493 CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
494 CXXFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
495 LDFLAGS_FOR_TARGET="${CT_TARGET_LDFLAGS}" \
497 "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
498 --build=${CT_BUILD} \
500 --target=${CT_TARGET} \
501 --prefix="${CT_PREFIX_DIR}" \
503 "${extra_config[@]}" \
504 --with-local-prefix="${CT_SYSROOT_DIR}" \
506 --enable-symvers=gnu \
509 ${CT_CC_EXTRA_CONFIG}
511 if [ "${CT_CANADIAN}" = "y" ]; then
512 CT_DoLog EXTRA "Building libiberty"
513 CT_DoExecLog ALL make ${PARALLELMFLAGS} all-build-libiberty
516 CT_DoLog EXTRA "Building final compiler"
517 CT_DoExecLog ALL make ${PARALLELMFLAGS} all
519 CT_DoLog EXTRA "Installing final compiler"
520 CT_DoExecLog ALL make install
522 # Create a symlink ${CT_TARGET}-cc to ${CT_TARGET}-gcc to always be able
523 # to call the C compiler with the same, somewhat canonical name.
524 # check whether compiler has an extension
525 file="$( ls -1 "${CT_PREFIX_DIR}/bin/${CT_TARGET}-gcc."* 2>/dev/null || true )"
526 [ -z "${file}" ] || ext=".${file##*.}"
527 CT_DoExecLog ALL ln -sv "${CT_TARGET}-gcc${ext}" "${CT_PREFIX_DIR}/bin/${CT_TARGET}-cc${ext}"