1 # This file adds functions to build glibc
2 # Copyright 2007 Yann E. MORIN
3 # Licensed under the GPL v2. See COPYING in the root of this package
6 [ "${CT_LIBC}" = "glibc" ] || return 0
7 echo "glibc-${CT_LIBC_VERSION}"
8 for addon in `do_libc_add_ons_list " "`; do
9 # NPTL addon is not to be downloaded, in any case
10 [ "${addon}" = "nptl" ] && continue || true
11 echo "glibc-${addon}-${CT_LIBC_VERSION}"
17 # Ah! Not all GNU folks seem stupid. All glibc releases are in the same
18 # directory. Good. Alas, there is no snapshot there. I'll deal with them
20 CT_GetFile "${CT_LIBC_FILE}" ftp://ftp.gnu.org/gnu/glibc
23 for addon in `do_libc_add_ons_list " "`; do
24 # NPTL addon is not to be downloaded, in any case
25 [ "${addon}" = "nptl" ] && continue || true
26 CT_GetFile "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" ftp://ftp.gnu.org/gnu/glibc
34 CT_ExtractAndPatch "${CT_LIBC_FILE}"
37 for addon in `do_libc_add_ons_list " "`; do
38 # NPTL addon is not to be extracted, in any case
39 [ "${addon}" = "nptl" ] && continue || true
40 CT_ExtractAndPatch "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
46 # There is nothing to do for glibc check config
47 do_libc_check_config() {
51 # This function installs the glibc headers needed to build the core compiler
53 # Only need to install bootstrap glibc headers for gcc-3.0 and above? Or maybe just gcc-3.3 and above?
54 # See also http://gcc.gnu.org/PR8180, which complains about the need for this step.
55 grep -q 'gcc-[34]' "${CT_SRC_DIR}/${CT_CC_FILE}/ChangeLog" 2>/dev/null || return 0
57 CT_DoStep INFO "Installing C library headers"
59 mkdir -p "${CT_BUILD_DIR}/build-libc-headers"
60 cd "${CT_BUILD_DIR}/build-libc-headers"
62 CT_DoLog EXTRA "Configuring C library"
64 # The following three things have to be done to build glibc-2.3.x, but they don't hurt older versions.
65 # 1. override CC to keep glibc's configure from using $TARGET-gcc.
66 # 2. disable linuxthreads, which needs a real cross-compiler to generate tcb-offsets.h properly
67 # 3. build with gcc 3.2 or later
68 # Compare these options with the ones used when building glibc for real below - they're different.
69 # As of glibc-2.3.2, to get this step to work for hppa-linux, you need --enable-hacker-mode
70 # so when configure checks to make sure gcc has access to the assembler you just built...
71 # Alternately, we could put ${PREFIX}/${TARGET}/bin on the path.
72 # Set --build so maybe we don't have to specify "cross-compiling=yes" below (haven't tried yet)
74 # "*** WARNING: Are you sure you do not want to use the `linuxthreads'"
76 # is ok here, since all we want are the basic headers at this point.
77 # Override libc_cv_ppc_machine so glibc-cvs doesn't complain
78 # 'a version of binutils that supports .machine "altivec" is needed'.
80 addons_config="--enable-add-ons=`do_libc_add_ons_list ,`"
81 # We need to remove any threading addon when installing headers
82 addons_config="${addons_config//nptl/}"
83 addons_config="${addons_config//linuxthreads/}"
84 addons_config=`echo "${addons_config}" |sed -r -e 's/,+/,/g; s/^,+//; s/,+$//;'`
86 cross_cc=`CT_Which "${CT_TARGET}-gcc"`
87 CT_DoLog DEBUG "Using gcc for target: \"${cross_cc}\""
88 CT_DoLog DEBUG "Extra config passed : \"${addons_config}\""
90 libc_cv_ppc_machine=yes \
92 "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
93 --build="${CT_UNIQ_BUILD}" \
94 --host="${CT_TARGET}" \
96 --with-headers="${CT_HEADERS_DIR}" \
98 --disable-sanity-checks \
99 --enable-hacker-mode \
101 --without-nptl 2>&1 |CT_DoLog ALL
103 CT_DoLog EXTRA "Installing C library headers"
105 if grep -q GLIBC_2.3 "${CT_SRC_DIR}/${CT_LIBC_FILE}/ChangeLog"; then
106 # glibc-2.3.x passes cross options to $(CC) when generating errlist-compat.c,
107 # which fails without a real cross-compiler.
108 # Fortunately, we don't need errlist-compat.c, since we just need .h
109 # files, so work around this by creating a fake errlist-compat.c and
110 # satisfying its dependencies.
111 # Another workaround might be to tell configure to not use any cross
113 # The real fix would be to get install-headers to not generate
115 # Note: BOOTSTRAP_GCC is used by:
116 # patches/glibc-2.3.5/glibc-mips-bootstrap-gcc-header-install.patch
118 libc_cv_ppc_machine=yes \
119 make CFLAGS="-O -DBOOTSTRAP_GCC" sysdeps/gnu/errlist.c 2>&1 |CT_DoLog ALL
120 mkdir -p stdio-common
122 # sleep for 2 seconds for benefit of filesystems with lousy time
123 # resolution, like FAT, so make knows for sure errlist-compat.c doesn't
126 touch stdio-common/errlist-compat.c
128 # Note: BOOTSTRAP_GCC (see above)
129 libc_cv_ppc_machine=yes \
130 make cross-compiling=yes install_root=${CT_SYSROOT_DIR} \
131 CFLAGS="-O -DBOOTSTRAP_GCC" ${LIBC_SYSROOT_ARG} \
132 install-headers 2>&1 |CT_DoLog ALL
134 # Two headers -- stubs.h and features.h -- aren't installed by install-headers,
135 # so do them by hand. We can tolerate an empty stubs.h for the moment.
136 # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html
137 mkdir -p "${CT_HEADERS_DIR}/gnu"
138 touch "${CT_HEADERS_DIR}/gnu/stubs.h"
139 cp "${CT_SRC_DIR}/${CT_LIBC_FILE}/include/features.h" "${CT_HEADERS_DIR}/features.h"
141 # Building the bootstrap gcc requires either setting inhibit_libc, or
142 # having a copy of stdio_lim.h... see
143 # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html
144 cp bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"
146 # Following error building gcc-4.0.0's gcj:
147 # error: bits/syscall.h: No such file or directory
148 # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
149 # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
150 [ "${CT_ARCH}" != "arm" ] && cp misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true
152 # Those headers are to be manually copied so gcc can build properly
153 pthread_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/${CT_THREADS}/sysdeps/pthread/pthread.h"
155 case "${CT_THREADS}" in
157 # NOTE: for some archs, the pathes are different, but they are not
158 # supported by ct-ng right now. See original crosstool when they are.
159 pthread_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/${CT_THREADS}/sysdeps/pthread/pthread.h"
160 pthreadtypes_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/nptl/sysdeps/unix/sysv/linux/${CT_KERNEL_ARCH}/bits/pthreadtypes.h"
161 if [ ! -f "${pthreadtypes_h}" ]; then
162 pthreadtypes_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/${CT_LIBC}-ports-${CT_LIBC_VERSION}/sysdeps/unix/sysv/linux/${CT_KERNEL_ARCH}/nptl/bits/pthreadtypes.h"
166 pthreadtypes_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h"
173 if [ -n "${pthread_h}" ]; then
174 cp -v "${pthread_h}" "${CT_HEADERS_DIR}/pthread.h" 2>&1 |CT_DoLog ALL
176 if [ -n "${pthreadtypes_h}" ]; then
177 cp -v "${pthreadtypes_h}" "${CT_HEADERS_DIR}/bits/pthreadtypes.h" 2>&1 |CT_DoLog ALL
183 # Build and install start files
184 do_libc_start_files() {
185 # Needed only in the NPTL case. Otherwise, return.
186 [ "${CT_THREADS}" = "nptl" ] || return 0
188 CT_DoStep INFO "Installing C library start files"
190 mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles"
191 cd "${CT_BUILD_DIR}/build-libc-startfiles"
193 CT_DoLog EXTRA "Configuring C library"
195 # Add some default glibc config options if not given by user.
197 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
199 *) extra_config="${extra_config} --enable-kernel=`echo ${CT_KERNEL_VERSION} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;'`"
201 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
203 *) extra_config="${extra_config} --with-tls"
205 case "${CT_SHARED_LIBS}" in
206 y) extra_config="${extra_config} --enable-shared";;
207 *) extra_config="${extra_config} --disable-shared";;
209 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
212 *) case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
213 y,) extra_config="${extra_config} --with-fp";;
214 ,y) extra_config="${extra_config} --without-fp";;
217 # Obviously, we want threads, as we come here only for NPTL
218 extra_config="${extra_config} --with-__thread"
220 addons_config="--enable-add-ons=`do_libc_add_ons_list ,`"
221 extra_config="${extra_config} ${addons_config}"
223 # Add some default CC args
224 glibc_version_major=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^([^\.]+)\..*/\1/')
225 glibc_version_minor=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^[^\.]+\.([^.]+).*/\1/')
226 if [ ${glibc_version_major} -ge 2 -a ${glibc_version_minor} -ge 6 ]; then
227 # Don't use -pipe: configure chokes on it for glibc >= 2.6.
228 CT_Test 'Removing "-pipe" for use with glibc>=2.6' "${CT_USE_PIPES}" = "y"
229 extra_cc_args="${CT_CFLAGS_FOR_HOST/-pipe}"
231 extra_cc_args="${CT_CFLAGS_FOR_HOST}"
233 case "${CT_LIBC_EXTRA_CC_ARGS}" in
235 *-mlittle-endian*) ;;
236 *) case "${CT_ARCH_BE},${CT_ARCH_LE}" in
237 y,) extra_cc_args="${extra_cc_args} -mbig-endian";;
238 ,y) extra_cc_args="${extra_cc_args} -mlittle-endian";;
242 cross_cc=`CT_Which "${CT_TARGET}-gcc"`
243 CT_DoLog DEBUG "Using gcc for target : \"${cross_cc}\""
244 CT_DoLog DEBUG "Configuring with addons : \"`do_libc_add_ons_list ,`\""
245 CT_DoLog DEBUG "Extra config args passed: \"${extra_config}\""
246 CT_DoLog DEBUG "Extra CC args passed : \"${extra_cc_args}\""
248 # sh3 and sh4 really need to set configparms as of gcc-3.4/glibc-2.3.2
249 # note: this is awkward, doesn't work well if you need more than one line in configparms
250 echo ${CT_LIBC_GLIBC_CONFIGPARMS} > configparms
252 echo "libc_cv_forced_unwind=yes" > config.cache
253 echo "libc_cv_c_cleanup=yes" >> config.cache
255 # Please see the comment for the configure step in do_libc().
257 BUILD_CC=${CT_CC_NATIVE} \
258 CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O " \
259 CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
261 RANLIB=${CT_TARGET}-ranlib \
262 "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
264 --build="${CT_UNIQ_BUILD}" \
265 --host=${CT_TARGET} \
270 --with-headers="${CT_HEADERS_DIR}" \
271 --cache-file=config.cache \
273 ${CT_LIBC_GLIBC_EXTRA_CONFIG} 2>&1 |CT_DoLog ALL
276 #TODO: should check whether slibdir has been set in configparms to */lib64
277 # and copy the startfiles into the appropriate libdir.
278 CT_DoLog EXTRA "Building C library start files"
279 make csu/subdir_lib 2>&1 |CT_DoLog ALL
281 CT_DoLog EXTRA "Installing C library start files"
282 if [ "${CT_USE_SYSROOT}" = "y" ]; then
283 cp -fp csu/crt[1in].o "${CT_SYSROOT_DIR}/usr/lib/"
285 cp -fp csu/crt[1in].o "${CT_SYSROOT_DIR}/lib/"
291 # This function builds and install the full glibc
293 CT_DoStep INFO "Installing C library"
295 mkdir -p "${CT_BUILD_DIR}/build-libc"
296 cd "${CT_BUILD_DIR}/build-libc"
298 CT_DoLog EXTRA "Configuring C library"
300 # Add some default glibc config options if not given by user.
301 # We don't need to be conditional on wether the user did set different
302 # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config
304 extra_config="--enable-kernel=`echo ${CT_KERNEL_VERSION} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;'`"
306 case "${CT_THREADS}" in
307 nptl) extra_config="${extra_config} --with-__thread --with-tls";;
308 linuxthreads) extra_config="${extra_config} --with-__thread --without-tls --without-nptl";;
309 none) extra_config="${extra_config} --without-__thread --without-nptl"
310 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
312 *) extra_config="${extra_config} --without-tls";;
317 case "${CT_SHARED_LIBS}" in
318 y) extra_config="${extra_config} --enable-shared";;
319 *) extra_config="${extra_config} --disable-shared";;
322 case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
323 y,) extra_config="${extra_config} --with-fp";;
324 ,y) extra_config="${extra_config} --without-fp";;
327 case "`do_libc_add_ons_list ,`" in
329 *) extra_config="${extra_config} --enable-add-ons=`do_libc_add_ons_list ,`";;
333 # Add some default CC args
334 glibc_version_major=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^([^\.]+)\..*/\1/')
335 glibc_version_minor=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^[^\.]+\.([^.]+).*/\1/')
336 if [ ${glibc_version_major} -ge 2 -a ${glibc_version_minor} -ge 6 ]; then
337 # Don't use -pipe: configure chokes on it for glibc >= 2.6.
338 CT_Test 'Removing "-pipe" for use with glibc>=2.6' "${CT_USE_PIPES}" = "y"
339 extra_cc_args="${CT_CFLAGS_FOR_HOST/-pipe}"
341 extra_cc_args="${CT_CFLAGS_FOR_HOST}"
343 case "${CT_ARCH_BE},${CT_ARCH_LE}" in
344 y,) extra_cc_args="${extra_cc_args} -mbig-endian";;
345 ,y) extra_cc_args="${extra_cc_args} -mlittle-endian";;
348 cross_cc=`CT_Which "${CT_TARGET}-gcc"`
349 CT_DoLog DEBUG "Using gcc for target : \"${cross_cc}\""
350 CT_DoLog DEBUG "Configuring with addons : \"`do_libc_add_ons_list ,`\""
351 CT_DoLog DEBUG "Extra config args passed: \"${extra_config}\""
352 CT_DoLog DEBUG "Extra CC args passed : \"${extra_cc_args}\""
354 # sh3 and sh4 really need to set configparms as of gcc-3.4/glibc-2.3.2
355 # note: this is awkward, doesn't work well if you need more than one line in configparms
356 echo ${CT_LIBC_GLIBC_CONFIGPARMS} > configparms
358 # For glibc 2.3.4 and later we need to set some autoconf cache
359 # variables, because nptl/sysdeps/pthread/configure.in does not
360 # work when cross-compiling.
361 if [ "${CT_THREADS}" = "nptl" ]; then
362 echo libc_cv_forced_unwind=yes
363 echo libc_cv_c_cleanup=yes
366 # Configure with --prefix the way we want it on the target...
367 # There are a whole lot of settings here. You'll probably want
368 # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG
369 # Compare these options with the ones used when installing the glibc headers above - they're different.
370 # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory"
371 # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html.
372 # Set BUILD_CC, or you won't be able to build datafiles
373 # Set --build, else glibc-2.3.2 will think you're not cross-compiling, and try to run the test programs
375 # OK. I'm fed up with those folks telling me what I should do.
376 # I don't configure nptl? Well, maybe that's purposedly because
377 # I don't want nptl! --disable-sanity-checks will shut up those
378 # silly messages. GNU folks again, he?
380 BUILD_CC=${CT_CC_NATIVE} \
381 CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O" \
382 CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
384 RANLIB=${CT_TARGET}-ranlib \
385 "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
387 --build=${CT_UNIQ_BUILD} \
388 --host=${CT_TARGET} \
393 --disable-sanity-checks \
394 --cache-file=config.cache \
395 --with-headers="${CT_HEADERS_DIR}" \
397 ${CT_LIBC_GLIBC_EXTRA_CONFIG} 2>&1 |CT_DoLog ALL
399 if grep -l '^install-lib-all:' "${CT_SRC_DIR}/${CT_LIBC_FILE}/Makerules" > /dev/null; then
401 # If the install-lib-all target (which is added by our make-install-lib-all.patch)
402 # is present, it means we're building glibc-2.3.3 or later, and we can't
403 # build programs yet, as they require libeh, which won't be installed
404 # until full build of gcc
405 GLIBC_INITIAL_BUILD_RULE=lib
406 GLIBC_INITIAL_INSTALL_RULE="install-lib-all install-headers"
407 GLIBC_INSTALL_APPS_LATER=yes
410 # We can build and install everything with the bootstrap compiler.
411 GLIBC_INITIAL_BUILD_RULE=all
412 GLIBC_INITIAL_INSTALL_RULE=install
413 GLIBC_INSTALL_APPS_LATER=no
416 # If this fails with an error like this:
417 # ... linux/autoconf.h: No such file or directory
418 # then you need to set the KERNELCONFIG variable to point to a .config file for this arch.
419 # The following architectures are known to need kernel .config: alpha, arm, ia64, s390, sh, sparc
420 # Note: LD and RANLIB needed by glibc-2.1.3's c_stub directory, at least on macosx
421 # No need for PARALLELMFLAGS here, Makefile already reads this environment variable
422 CT_DoLog EXTRA "Building C library"
423 make LD=${CT_TARGET}-ld \
424 RANLIB=${CT_TARGET}-ranlib \
425 ${GLIBC_INITIAL_BUILD_RULE} 2>&1 |CT_DoLog ALL
427 CT_DoLog EXTRA "Installing C library"
428 make install_root="${CT_SYSROOT_DIR}" \
429 ${LIBC_SYSROOT_ARG} \
430 ${GLIBC_INITIAL_INSTALL_RULE} 2>&1 |CT_DoLog ALL
432 # This doesn't seem to work when building a crosscompiler,
433 # as it tries to execute localedef using the just-built ld.so!?
434 #CT_DoLog EXTRA "Installing locales"
435 #make localedata/install-locales install_root=${SYSROOT} 2>&1 |CT_DoLog ALL
437 # Fix problems in linker scripts.
439 # 1. Remove absolute paths
440 # Any file in a list of known suspects that isn't a symlink is assumed to be a linker script.
441 # FIXME: test -h is not portable
442 # FIXME: probably need to check more files than just these three...
443 # Need to use sed instead of just assuming we know what's in libc.so because otherwise alpha breaks
445 # 2. Remove lines containing BUG per http://sources.redhat.com/ml/bug-glibc/2003-05/msg00055.html,
446 # needed to fix gcc-3.2.3/glibc-2.3.2 targeting arm
448 # To make "strip *.so.*" not fail (ptxdist does this), rename to .so_orig rather than .so.orig
449 CT_DoLog EXTRA "Fixing C library linker scripts"
450 for file in libc.so libpthread.so libgcc_s.so; do
451 for dir in lib lib64 usr/lib usr/lib64; do
452 if [ -f "${CT_SYSROOT_DIR}/${dir}/${file}" -a ! -L ${CT_SYSROOT_DIR}/$lib/$file ]; then
453 cp "${CT_SYSROOT_DIR}/${dir}/${file}" "${CT_SYSROOT_DIR}/${dir}/${file}_orig"
454 CT_DoLog DEBUG "Fixing \"${CT_SYS_ROOT_DIR}/${dir}/${file}\""
455 sed -i -r -e 's,/usr/lib/,,g;
459 /BUG in libc.scripts.output-format.sed/d' "${CT_SYSROOT_DIR}/${dir}/${file}"
467 # This function finishes the glibc install
469 # Finally, build and install glibc programs, now that libeh (if any) is installed
470 # Don't do this unless needed, 'cause it causes glibc-2.{1.3,2.2} to fail here with
471 # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__deregister_frame_info'
472 # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__register_frame_info'
473 [ "${GLIBC_INSTALL_APPS_LATER}" = "yes" ] || return 0
475 CT_DoStep INFO "Finishing C library"
477 cd "${CT_BUILD_DIR}/build-libc"
479 CT_DoLog EXTRA "Re-building C library"
480 make LD=${CT_TARGET}-ld RANLIB=${CT_TARGET}-ranlib 2>&1 |CT_DoLog ALL
482 CT_DoLog EXTRA "Installing missing C library components"
483 # note: should do full install and then fix linker scripts, but this is faster
484 for t in bin rootsbin sbin data others; do
485 make install_root="${CT_SYSROOT_DIR}" \
486 ${LIBC_SYSROOT_ARG} \
487 install-${t} 2>&1 |CT_DoLog ALL
493 # Build up the addons list, separated with $1
494 do_libc_add_ons_list() {
496 local addons_list=`echo "${CT_LIBC_ADDONS_LIST//,/${sep}}" |tr -s ,`
497 case "${CT_THREADS}" in
499 *) addons_list="${addons_list}${sep}${CT_THREADS}";;
501 [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
502 addons_list="${addons_list%%${sep}}"
503 echo "${addons_list##${sep}}"