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
7 # Ah! Not all GNU folks seem stupid. All glibc releases are in the same
8 # directory. Good. Alas, there is no snapshot there. I'll deal with them
10 CT_GetFile "${CT_LIBC_FILE}" \
11 {ftp,http}://ftp.gnu.org/gnu/glibc \
12 ftp://gcc.gnu.org/pub/glibc/releases \
13 ftp://gcc.gnu.org/pub/glibc/snapshots
16 for addon in $(do_libc_add_ons_list " "); do
17 # NPTL addon is not to be downloaded, in any case
18 [ "${addon}" = "nptl" ] && continue || true
19 CT_GetFile "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" \
20 {ftp,http}://ftp.gnu.org/gnu/glibc \
21 ftp://gcc.gnu.org/pub/glibc/releases \
22 ftp://gcc.gnu.org/pub/glibc/snapshots
30 CT_ExtractAndPatch "${CT_LIBC_FILE}"
33 for addon in $(do_libc_add_ons_list " "); do
34 # NPTL addon is not to be extracted, in any case
35 [ "${addon}" = "nptl" ] && continue || true
36 CT_ExtractAndPatch "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
39 # The configure files may be older than the configure.in files
40 # if using a snapshot (or even some tarballs). Fake them being
42 find "${CT_SRC_DIR}/${CT_LIBC_FILE}" -type f -name configure -exec touch {} \; 2>&1 |CT_DoLog ALL
47 # There is nothing to do for glibc check config
48 do_libc_check_config() {
52 # This function installs the glibc headers needed to build the core compiler
54 # Only need to install bootstrap glibc headers for gcc-3.0 and above? Or maybe just gcc-3.3 and above?
55 # See also http://gcc.gnu.org/PR8180, which complains about the need for this step.
56 grep -q 'gcc-[34]' "${CT_SRC_DIR}/${CT_CC_FILE}/ChangeLog" 2>/dev/null || return 0
58 CT_DoStep INFO "Installing C library headers"
60 mkdir -p "${CT_BUILD_DIR}/build-libc-headers"
61 cd "${CT_BUILD_DIR}/build-libc-headers"
63 CT_DoLog EXTRA "Configuring C library"
65 # The following three things have to be done to build glibc-2.3.x, but they don't hurt older versions.
66 # 1. override CC to keep glibc's configure from using $TARGET-gcc.
67 # 2. disable linuxthreads, which needs a real cross-compiler to generate tcb-offsets.h properly
68 # 3. build with gcc 3.2 or later
69 # Compare these options with the ones used when building glibc for real below - they're different.
70 # As of glibc-2.3.2, to get this step to work for hppa-linux, you need --enable-hacker-mode
71 # so when configure checks to make sure gcc has access to the assembler you just built...
72 # Alternately, we could put ${PREFIX}/${TARGET}/bin on the path.
73 # Set --build so maybe we don't have to specify "cross-compiling=yes" below (haven't tried yet)
75 # "*** WARNING: Are you sure you do not want to use the `linuxthreads'"
77 # is ok here, since all we want are the basic headers at this point.
78 # Override libc_cv_ppc_machine so glibc-cvs doesn't complain
79 # 'a version of binutils that supports .machine "altivec" is needed'.
81 addons_list="$(do_libc_add_ons_list ,)"
82 # We need to remove any threading addon when installing headers
83 addons_list="${addons_list//nptl/}"
84 addons_list="${addons_list//linuxthreads/}"
85 # Remove duplicate, leading and trailing separators
86 addons_config="--enable-add-ons=$(echo "${addons_list}" |sed -r -e 's/,+/,/; s/^,//; s/,$//g;')"
88 extra_config="${addons_config} $(do_libc_min_kernel_config)"
90 cross_cc=$(CT_Which "${CT_TARGET}-gcc")
91 CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
92 CT_DoLog DEBUG "Extra config passed : '${extra_config}'"
94 libc_cv_ppc_machine=yes \
97 "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
98 --build="${CT_BUILD}" \
99 --host="${CT_TARGET}" \
101 --with-headers="${CT_HEADERS_DIR}" \
103 --disable-sanity-checks \
104 --enable-hacker-mode \
108 CT_DoLog EXTRA "Installing C library headers"
110 if grep -q GLIBC_2.3 "${CT_SRC_DIR}/${CT_LIBC_FILE}/ChangeLog"; then
111 # glibc-2.3.x passes cross options to $(CC) when generating errlist-compat.c,
112 # which fails without a real cross-compiler.
113 # Fortunately, we don't need errlist-compat.c, since we just need .h
114 # files, so work around this by creating a fake errlist-compat.c and
115 # satisfying its dependencies.
116 # Another workaround might be to tell configure to not use any cross
118 # The real fix would be to get install-headers to not generate
120 # Note: BOOTSTRAP_GCC is used by:
121 # patches/glibc-2.3.5/glibc-mips-bootstrap-gcc-header-install.patch
123 libc_cv_ppc_machine=yes \
125 make CFLAGS="-O -DBOOTSTRAP_GCC" \
126 OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \
127 sysdeps/gnu/errlist.c
128 mkdir -p stdio-common
130 # sleep for 2 seconds for benefit of filesystems with lousy time
131 # resolution, like FAT, so make knows for sure errlist-compat.c doesn't
134 CT_DoExecLog ALL touch stdio-common/errlist-compat.c
136 # Note: BOOTSTRAP_GCC (see above)
137 libc_cv_ppc_machine=yes \
139 make cross-compiling=yes \
140 install_root=${CT_SYSROOT_DIR} \
141 CFLAGS="-O -DBOOTSTRAP_GCC" \
142 ${LIBC_SYSROOT_ARG} \
143 OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \
146 # Two headers -- stubs.h and features.h -- aren't installed by install-headers,
147 # so do them by hand. We can tolerate an empty stubs.h for the moment.
148 # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html
149 mkdir -p "${CT_HEADERS_DIR}/gnu"
150 CT_DoExecLog ALL touch "${CT_HEADERS_DIR}/gnu/stubs.h"
151 CT_DoExecLog ALL cp -v "${CT_SRC_DIR}/${CT_LIBC_FILE}/include/features.h" \
152 "${CT_HEADERS_DIR}/features.h"
154 # Building the bootstrap gcc requires either setting inhibit_libc, or
155 # having a copy of stdio_lim.h... see
156 # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html
157 CT_DoExecLog ALL cp -v bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"
159 # Following error building gcc-4.0.0's gcj:
160 # error: bits/syscall.h: No such file or directory
161 # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
162 # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
163 [ "${CT_ARCH}" != "arm" ] && CT_DoExecLog ALL cp -v misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true
165 # Those headers are to be manually copied so gcc can build properly
166 pthread_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/${CT_THREADS}/sysdeps/pthread/pthread.h"
168 case "${CT_THREADS}" in
170 # NOTE: for some archs, the pathes are different, but they are not
171 # supported by crosstool-NG right now. See original crosstool when they are.
172 pthread_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/${CT_THREADS}/sysdeps/pthread/pthread.h"
173 pthreadtypes_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/nptl/sysdeps/unix/sysv/linux/${CT_KERNEL_ARCH}/bits/pthreadtypes.h"
174 if [ ! -f "${pthreadtypes_h}" ]; then
175 pthreadtypes_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/${CT_LIBC}-ports-${CT_LIBC_VERSION}/sysdeps/unix/sysv/linux/${CT_KERNEL_ARCH}/nptl/bits/pthreadtypes.h"
179 pthreadtypes_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h"
186 if [ -n "${pthread_h}" ]; then
187 CT_DoExecLog ALL cp -v "${pthread_h}" "${CT_HEADERS_DIR}/pthread.h"
189 if [ -n "${pthreadtypes_h}" ]; then
190 CT_DoExecLog ALL cp -v "${pthreadtypes_h}" "${CT_HEADERS_DIR}/bits/pthreadtypes.h"
196 # Build and install start files
197 do_libc_start_files() {
198 # Needed only in the NPTL case. Otherwise, return.
199 [ "${CT_THREADS}" = "nptl" ] || return 0
201 CT_DoStep INFO "Installing C library start files"
203 mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles"
204 cd "${CT_BUILD_DIR}/build-libc-startfiles"
206 CT_DoLog EXTRA "Configuring C library"
208 # Add some default glibc config options if not given by user.
210 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
212 *) extra_config="${extra_config} --with-tls"
214 case "${CT_SHARED_LIBS}" in
215 y) extra_config="${extra_config} --enable-shared";;
216 *) extra_config="${extra_config} --disable-shared";;
218 case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
219 y,) extra_config="${extra_config} --with-fp";;
220 ,y) extra_config="${extra_config} --without-fp";;
222 # Obviously, we want threads, as we come here only for NPTL
223 extra_config="${extra_config} --with-__thread"
225 addons_config="--enable-add-ons=$(do_libc_add_ons_list ,)"
226 extra_config="${extra_config} ${addons_config}"
228 extra_config="${extra_config} $(do_libc_min_kernel_config)"
230 # Add some default CC args
231 glibc_version_major=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^([^\.]+)\..*/\1/')
232 glibc_version_minor=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^[^\.]+\.([^.]+).*/\1/')
233 # In case we're using a snapshot, fake a >=2.6 version.
234 if [ "${CT_LIBC_V_LATEST}" = "y" \
235 -o "${CT_LIBC_V_date}" = "y" ]; then
236 glibc_version_major=3
237 glibc_version_minor=0
239 if [ ${glibc_version_major} -eq 2 -a ${glibc_version_minor} -ge 6 \
240 -o ${glibc_version_major} -gt 2 ]; then
241 # Don't use -pipe: configure chokes on it for glibc >= 2.6.
242 CT_Test 'Removing "-pipe" for use with glibc>=2.6' "${CT_USE_PIPES}" = "y"
243 extra_cc_args="${CT_CFLAGS_FOR_HOST/-pipe}"
245 extra_cc_args="${CT_CFLAGS_FOR_HOST}"
247 extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
249 cross_cc=$(CT_Which "${CT_TARGET}-gcc")
250 CT_DoLog DEBUG "Using gcc for target : '${cross_cc}'"
251 CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
252 CT_DoLog DEBUG "Extra config args passed: '${extra_config}'"
253 CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'"
255 # Super-H really needs to set configparms as of gcc-3.4/glibc-2.3.2
256 # note: this is awkward, doesn't work well if you need more than one
257 # line in configparms
258 [ "${CT_ARCH_sh}" = "y" ] && echo "no-z-defs=yes" > configparms
260 echo "libc_cv_forced_unwind=yes" > config.cache
261 echo "libc_cv_c_cleanup=yes" >> config.cache
263 # Please see the comment for the configure step in do_libc().
265 BUILD_CC="${CT_BUILD}-gcc" \
266 CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O " \
267 CC="${cross_cc} ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
269 RANLIB=${CT_TARGET}-ranlib \
271 "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
273 --build="${CT_BUILD}" \
274 --host=${CT_TARGET} \
279 --with-headers="${CT_HEADERS_DIR}" \
280 --cache-file=config.cache \
282 ${CT_LIBC_GLIBC_EXTRA_CONFIG}
285 #TODO: should check whether slibdir has been set in configparms to */lib64
286 # and copy the startfiles into the appropriate libdir.
287 CT_DoLog EXTRA "Building C library start files"
288 CT_DoExecLog ALL make OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" csu/subdir_lib
290 CT_DoLog EXTRA "Installing C library start files"
291 if [ "${CT_USE_SYSROOT}" = "y" ]; then
292 CT_DoExecLog ALL cp -fpv csu/crt[1in].o "${CT_SYSROOT_DIR}/usr/lib/"
294 CT_DoExecLog ALL cp -fpv csu/crt[1in].o "${CT_SYSROOT_DIR}/lib/"
300 # This function builds and install the full glibc
302 CT_DoStep INFO "Installing C library"
304 mkdir -p "${CT_BUILD_DIR}/build-libc"
305 cd "${CT_BUILD_DIR}/build-libc"
307 CT_DoLog EXTRA "Configuring C library"
309 # Add some default glibc config options if not given by user.
310 # We don't need to be conditional on wether the user did set different
311 # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config
314 case "${CT_THREADS}" in
315 nptl) extra_config="${extra_config} --with-__thread --with-tls";;
316 linuxthreads) extra_config="${extra_config} --with-__thread --without-tls --without-nptl";;
317 none) extra_config="${extra_config} --without-__thread --without-nptl"
318 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
320 *) extra_config="${extra_config} --without-tls";;
325 case "${CT_SHARED_LIBS}" in
326 y) extra_config="${extra_config} --enable-shared";;
327 *) extra_config="${extra_config} --disable-shared";;
330 case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
331 y,) extra_config="${extra_config} --with-fp";;
332 ,y) extra_config="${extra_config} --without-fp";;
335 case "$(do_libc_add_ons_list ,)" in
337 *) extra_config="${extra_config} --enable-add-ons=$(do_libc_add_ons_list ,)";;
340 extra_config="${extra_config} $(do_libc_min_kernel_config)"
342 # Add some default CC args
343 glibc_version_major=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^([^\.]+)\..*/\1/')
344 glibc_version_minor=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^[^\.]+\.([^.]+).*/\1/')
345 # In case we're using a snapshot, fake a >=2.6 version.
346 if [ "${CT_LIBC_V_LATEST}" = "y" \
347 -o "${CT_LIBC_V_date}" = "y" ]; then
348 glibc_version_major=3
349 glibc_version_minor=0
351 if [ ${glibc_version_major} -eq 2 -a ${glibc_version_minor} -ge 6 \
352 -o ${glibc_version_major} -gt 2 ]; then
353 # Don't use -pipe: configure chokes on it for glibc >= 2.6.
354 CT_Test 'Removing "-pipe" for use with glibc>=2.6' "${CT_USE_PIPES}" = "y"
355 extra_cc_args="${CT_CFLAGS_FOR_HOST/-pipe}"
357 extra_cc_args="${CT_CFLAGS_FOR_HOST}"
359 extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
361 cross_cc=$(CT_Which "${CT_TARGET}-gcc")
362 CT_DoLog DEBUG "Using gcc for target : '${cross_cc}'"
363 CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
364 CT_DoLog DEBUG "Extra config args passed: '${extra_config}'"
365 CT_DoLog DEBUG "Extra CC args passed : '${extra_cc_args}'"
367 # sh3 and sh4 really need to set configparms as of gcc-3.4/glibc-2.3.2
368 # note: this is awkward, doesn't work well if you need more than one line in configparms
369 echo ${CT_LIBC_GLIBC_CONFIGPARMS} > configparms
371 # For glibc 2.3.4 and later we need to set some autoconf cache
372 # variables, because nptl/sysdeps/pthread/configure.in does not
373 # work when cross-compiling.
374 if [ "${CT_THREADS}" = "nptl" ]; then
375 echo libc_cv_forced_unwind=yes
376 echo libc_cv_c_cleanup=yes
379 # Configure with --prefix the way we want it on the target...
380 # There are a whole lot of settings here. You'll probably want
381 # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG
382 # Compare these options with the ones used when installing the glibc headers above - they're different.
383 # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory"
384 # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html.
385 # Set BUILD_CC, or you won't be able to build datafiles
386 # Set --build, else glibc-2.3.2 will think you're not cross-compiling, and try to run the test programs
388 # OK. I'm fed up with those folks telling me what I should do.
389 # I don't configure nptl? Well, maybe that's purposedly because
390 # I don't want nptl! --disable-sanity-checks will shut up those
391 # silly messages. GNU folks again, he?
393 BUILD_CC="${CT_BUILD}-gcc" \
394 CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O" \
395 CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
397 RANLIB=${CT_TARGET}-ranlib \
399 "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
401 --build=${CT_BUILD} \
402 --host=${CT_TARGET} \
407 --disable-sanity-checks \
408 --cache-file=config.cache \
409 --with-headers="${CT_HEADERS_DIR}" \
411 ${CT_LIBC_GLIBC_EXTRA_CONFIG}
413 if grep -l '^install-lib-all:' "${CT_SRC_DIR}/${CT_LIBC_FILE}/Makerules" > /dev/null; then
415 # If the install-lib-all target (which is added by our make-install-lib-all.patch)
416 # is present, it means we're building glibc-2.3.3 or later, and we can't
417 # build programs yet, as they require libeh, which won't be installed
418 # until full build of gcc
419 # YEM-FIXME: This comment is misleading: latest glibc-s do not have the
420 # make-install-lib-all.patch applied, so do not pass through this
421 # part of the if statement; nonetheless, they do build, and
422 # the result is useable (maybe the dual-pass core gcc is
423 # responsible for this).
424 GLIBC_INITIAL_BUILD_RULE=lib
425 GLIBC_INITIAL_INSTALL_RULE="install-lib-all install-headers"
426 GLIBC_INSTALL_APPS_LATER=yes
429 # We can build and install everything with the bootstrap compiler.
430 # YEM-FIXME: See the above FIXME as well.
431 GLIBC_INITIAL_BUILD_RULE=all
432 GLIBC_INITIAL_INSTALL_RULE=install
433 GLIBC_INSTALL_APPS_LATER=no
436 # glibc initial build hacks
437 # http://sourceware.org/ml/crossgcc/2008-10/msg00068.html
438 case "${CT_ARCH},${CT_ARCH_CPU}" in
440 CT_DoLog DEBUG "Activating support for memset on broken ppc-8xx (CPU15 erratum)"
441 GLIBC_INITIAL_BUILD_ASFLAGS="-DBROKEN_PPC_8xx_CPU15";;
444 # If this fails with an error like this:
445 # ... linux/autoconf.h: No such file or directory
446 # then you need to set the KERNELCONFIG variable to point to a .config file for this arch.
447 # The following architectures are known to need kernel .config: alpha, arm, ia64, s390, sh, sparc
448 # Note: LD and RANLIB needed by glibc-2.1.3's c_stub directory, at least on macosx
449 # No need for PARALLELMFLAGS here, Makefile already reads this environment variable
450 CT_DoLog EXTRA "Building C library"
451 CT_DoExecLog ALL make LD=${CT_TARGET}-ld \
452 RANLIB=${CT_TARGET}-ranlib \
453 OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \
454 ASFLAGS="${GLIBC_INITIAL_BUILD_ASFLAGS}" \
455 ${GLIBC_INITIAL_BUILD_RULE}
457 CT_DoLog EXTRA "Installing C library"
458 CT_DoExecLog ALL make install_root="${CT_SYSROOT_DIR}" \
459 ${LIBC_SYSROOT_ARG} \
460 OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \
461 ${GLIBC_INITIAL_INSTALL_RULE}
463 # This doesn't seem to work when building a crosscompiler,
464 # as it tries to execute localedef using the just-built ld.so!?
465 #CT_DoLog EXTRA "Installing locales"
466 #make localedata/install-locales install_root=${SYSROOT} 2>&1 |CT_DoLog ALL
468 # Fix problems in linker scripts.
470 # Remove lines containing BUG per http://sources.redhat.com/ml/bug-glibc/2003-05/msg00055.html,
471 # needed to fix gcc-3.2.3/glibc-2.3.2 targeting arm
472 # No need to look into the lib64/ dirs here and there, they point to the
473 # corresponding lib/ directories.
475 # To make "strip *.so.*" not fail (ptxdist does this), rename to .so_orig rather than .so.orig
476 CT_DoLog EXTRA "Fixing C library linker scripts"
477 for file in libc.so libpthread.so libgcc_s.so; do
478 for dir in lib usr/lib; do
479 if [ -f "${CT_SYSROOT_DIR}/${dir}/${file}" -a ! -L ${CT_SYSROOT_DIR}/$lib/$file ]; then
480 CT_DoExecLog ALL cp -v "${CT_SYSROOT_DIR}/${dir}/${file}" "${CT_SYSROOT_DIR}/${dir}/${file}_orig"
481 CT_DoLog DEBUG "Fixing '${CT_SYS_ROOT_DIR}/${dir}/${file}'"
482 CT_DoExecLog ALL sed -i -r -e '/BUG in libc.scripts.output-format.sed/d' "${CT_SYSROOT_DIR}/${dir}/${file}"
490 # This function finishes the glibc install
492 # Finally, build and install glibc programs, now that libeh (if any) is installed
493 # Don't do this unless needed, 'cause it causes glibc-2.{1.3,2.2} to fail here with
494 # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__deregister_frame_info'
495 # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__register_frame_info'
496 [ "${GLIBC_INSTALL_APPS_LATER}" = "yes" ] || return 0
498 CT_DoStep INFO "Finishing C library"
500 cd "${CT_BUILD_DIR}/build-libc"
502 CT_DoLog EXTRA "Re-building C library"
503 CT_DoExecLog ALL make LD=${CT_TARGET}-ld RANLIB=${CT_TARGET}-ranlib
505 CT_DoLog EXTRA "Installing missing C library components"
506 # note: should do full install and then fix linker scripts, but this is faster
507 for t in bin rootsbin sbin data others; do
508 CT_DoExecLog ALL make install_root="${CT_SYSROOT_DIR}" \
509 ${LIBC_SYSROOT_ARG} \
510 OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" \
517 # Build up the addons list, separated with $1
518 do_libc_add_ons_list() {
520 local addons_list=$(echo "${CT_LIBC_ADDONS_LIST}" |sed -r -e "s/[ ,]/${sep}/g;")
521 case "${CT_THREADS}" in
523 *) addons_list="${addons_list}${sep}${CT_THREADS}";;
525 [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
526 # Remove duplicate, leading and trailing separators
527 echo "${addons_list}" |sed -r -e "s/${sep}+/${sep}/g; s/^${sep}//; s/${sep}\$//;"
530 # Builds up the minimum supported Linux kernel version
531 do_libc_min_kernel_config() {
532 local min_kernel_config=
533 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
535 *) if [ "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" ]; then
536 # We can't rely on the kernel version from the configuration,
537 # because it might not be available if the user uses pre-installed
538 # headers. On the other hand, both method will have the kernel
539 # version installed in "usr/include/linux/version.h" in the sys-root.
540 # Parse that instead of having two code-paths.
541 version_code_file="${CT_SYSROOT_DIR}/usr/include/linux/version.h"
542 CT_TestOrAbort "Linux version is unavailable in installed headers files" -f "${version_code_file}" -a -r "${version_code_file}"
543 version_code=$(grep -E LINUX_VERSION_CODE "${version_code_file}" |cut -d ' ' -f 3)
544 version=$(((version_code>>16)&0xFF))
545 patchlevel=$(((version_code>>8)&0xFF))
546 sublevel=$((version_code&0xFF))
547 min_kernel_config="--enable-kernel=${version}.${patchlevel}.${sublevel}"
548 elif [ "${CT_LIBC_GLIBC_KERNEL_VERSION_CHOSEN}" = "y" ]; then
549 # Trim the fourth part of the linux version, keeping only the first three numbers
550 min_kernel_config="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL_VERSION} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
554 echo "${min_kernel_config}"