1 # This file declares functions to install the uClibc C library
2 # Copyright 2007 Yann E. MORIN
3 # Licensed under the GPL v2. See COPYING in the root of this package
6 [ "${CT_LIBC}" = "uClibc" ] || return 0
7 echo "uClibc-${CT_LIBC_VERSION}"
8 [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && echo "uClibc-locale-030818" || true
13 libc_src="http://www.uclibc.org/downloads
14 http://www.uclibc.org/downloads/snapshots
15 http://www.uclibc.org/downloads/old-releases"
16 # For uClibc, we have almost every thing: releases, and snapshots
17 # for the last month or so. We'll have to deal with svn revisions
19 CT_GetFile "${CT_LIBC_FILE}" ${libc_src}
21 [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && CT_GetFile "uClibc-locale-030818" ${libc_src} || true
28 CT_ExtractAndPatch "${CT_LIBC_FILE}"
30 [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] && CT_ExtractAndPatch "uClibc-locale-030818" || true
35 # Check that uClibc has been previously configured
36 do_libc_check_config() {
37 CT_DoStep INFO "Checking C library configuration"
39 CT_TestOrAbort "You did not provide a uClibc config file!" -n "${CT_LIBC_UCLIBC_CONFIG_FILE}" -a -f "${CT_LIBC_UCLIBC_CONFIG_FILE}"
41 if egrep '^KERNEL_SOURCE=' "${CT_LIBC_UCLIBC_CONFIG_FILE}" >/dev/null 2>&1; then
42 CT_DoLog WARN "Your uClibc version refers to the kernel _sources_, which is bad."
43 CT_DoLog WARN "I can't guarantee that our little hack will work. Please try to upgrade."
46 CT_DoLog EXTRA "Munging uClibc configuration"
47 mungeuClibcConfig "${CT_LIBC_UCLIBC_CONFIG_FILE}" "${CT_BUILD_DIR}/uClibc.config"
52 # This functions installs uClibc's headers
54 # Only need to install bootstrap uClibc 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 # Simply copy files until uClibc has the ablity to build out-of-tree
64 CT_DoLog EXTRA "Copying sources to build dir"
65 { cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -
67 # Retrieve the config file
68 cp "${CT_BUILD_DIR}/uClibc.config" .config
70 # uClibc uses the CROSS environment variable as a prefix to the
71 # compiler tools to use. Setting it to the empty string forces
72 # use of the native build host tools, which we need at this
73 # stage, as we don't have target tools yet.
74 CT_DoLog EXTRA "Applying configuration"
75 CT_DoYes "" |CT_DoExecLog ALL make CROSS= PREFIX="${CT_SYSROOT_DIR}/" oldconfig
77 CT_DoLog EXTRA "Building headers"
78 CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" headers
80 CT_DoLog EXTRA "Installing headers"
81 CT_DoExecLog ALL make ${CT_LIBC_UCLIBC_VERBOSITY} CROSS= PREFIX="${CT_SYSROOT_DIR}/" install_headers
86 # Build and install start files
87 do_libc_start_files() {
91 # This function build and install the full uClibc
93 CT_DoStep INFO "Installing C library"
95 mkdir -p "${CT_BUILD_DIR}/build-libc"
96 cd "${CT_BUILD_DIR}/build-libc"
98 # Simply copy files until uClibc has the ablity to build out-of-tree
99 CT_DoLog EXTRA "Copying sources to build dir"
100 { cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -
102 # Retrieve the config file
103 cp "${CT_BUILD_DIR}/uClibc.config" .config
105 # uClibc uses the CROSS environment variable as a prefix to the compiler
106 # tools to use. The newly built tools should be in our path, so we need
107 # only give the correct name for them.
108 # Note about CFLAGS: In uClibc, CFLAGS are generated by Rules.mak,
109 # depending on the configuration of the library. That is, they are tailored
110 # to best fit the target. So it is useless and seems to be a bad thing to
111 # use LIBC_EXTRA_CFLAGS here.
112 CT_DoLog EXTRA "Applying configuration"
113 CT_DoYes "" |CT_DoExecLog ALL \
114 make CROSS=${CT_TARGET}- \
115 PREFIX="${CT_SYSROOT_DIR}/" \
118 # We do _not_ want to strip anything for now, in case we specifically
119 # asked for a debug toolchain, thus the STRIPTOOL= assignment
120 # /Old/ versions can not build in //
121 CT_DoLog EXTRA "Building C library"
123 make ${CT_LIBC_UCLIBC_PARALLEL:+${PARALLELMFLAGS}} \
124 CROSS=${CT_TARGET}- \
125 PREFIX="${CT_SYSROOT_DIR}/" \
127 ${CT_LIBC_UCLIBC_VERBOSITY} \
130 # YEM-FIXME: we want to install libraries in $SYSROOT/lib, but we don't want
131 # to install headers in $SYSROOT/include, thus making only install_runtime.
132 # Plus, the headers were previously installed earlier with install_headers,
133 # so all should be well. Unfortunately, the install_headers target does not
134 # install crti.o and consorts... :-( So reverting to target 'install'.
135 # Note: PARALLELMFLAGS is not usefull for installation.
136 # We do _not_ want to strip anything for now, in case we specifically
137 # asked for a debug toolchain, hence the STRIPTOOL= assignment
138 CT_DoLog EXTRA "Installing C library"
140 make CROSS=${CT_TARGET}- \
141 PREFIX="${CT_SYSROOT_DIR}/" \
143 ${CT_LIBC_UCLIBC_VERBOSITY} \
149 # This function is used to install those components needing the final C compiler
151 # Build and install host-side ldd
152 CT_DoStep INFO "Finishing C library"
154 mkdir -p "${CT_BUILD_DIR}/build-libc-finish"
155 cd "${CT_BUILD_DIR}/build-libc-finish"
157 # Simply copy files until uClibc has the ablity to build out-of-tree
158 CT_DoLog EXTRA "Copying sources to build dir"
159 { cd "${CT_SRC_DIR}/${CT_LIBC_FILE}"; tar cf - .; } |tar xf -
161 # Retrieve the config file
162 cp "${CT_BUILD_DIR}/uClibc.config" .config
164 CT_DoLog EXTRA "Applying configuration"
165 CT_DoYes "" |CT_DoExecLog ALL \
166 make CROSS=${CT_TARGET}- \
167 PREFIX="${CT_SYSROOT_DIR}/" \
170 CT_DoLog EXTRA "Installing C library host utils"
172 make PREFIX="${CT_SYSROOT_DIR}/" \
173 ${CT_LIBC_UCLIBC_VERBOSITY} \
175 CT_DoExecLog ALL install -m 0755 utils/ldd.host "${CT_PREFIX_DIR}/bin/${CT_TARGET}-ldd"
180 # Initialises the .config file to sensible values
183 mungeuClibcConfig() {
186 munge_file="${CT_BUILD_DIR}/munge-uClibc-config.sed"
188 # Start with a fresh file
189 rm -f "${munge_file}"
190 touch "${munge_file}"
192 # Hack our target in the config file.
193 # Also remove stripping: its the responsibility of the
194 # firmware builder to strip or not.
195 cat >>"${munge_file}" <<-ENDSED
196 s/^(TARGET_.*)=y$/# \\1 is not set/
197 s/^# TARGET_${CT_KERNEL_ARCH} is not set/TARGET_${CT_KERNEL_ARCH}=y/
198 s/^TARGET_ARCH=".*"/TARGET_ARCH="${CT_KERNEL_ARCH}"/
199 s/.*(DOSTRIP).*/# \\1 is not set/
202 # Ah. We may one day need architecture-specific handler here...
203 # Hack the ARM {E,O}ABI into the config file
204 if [ "${CT_ARCH_ARM_EABI}" = "y" ]; then
205 cat >>"${munge_file}" <<-ENDSED
206 s/.*(CONFIG_ARM_OABI).*/# \\1 is not set/
207 s/.*(CONFIG_ARM_EABI).*/\\1=y/
210 cat >>"${munge_file}" <<-ENDSED
211 s/.*(CONFIG_ARM_OABI).*/\\1=y/
212 s/.*(CONFIG_ARM_EABI).*/# \\1 is not set/
216 # Accomodate for old and new uClibc versions, where the
217 # way to select between big/little endian has changed
218 case "${CT_ARCH_BE},${CT_ARCH_LE}" in
219 y,) cat >>"${munge_file}" <<-ENDSED
220 s/.*(ARCH_LITTLE_ENDIAN).*/# \\1 is not set/
221 s/.*(ARCH_BIG_ENDIAN).*/\\1=y/
222 s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/# \\1 is not set/
223 s/.*(ARCH_WANTS_BIG_ENDIAN).*/\\1=y/
226 ,y) cat >>"${munge_file}" <<-ENDSED
227 s/.*(ARCH_LITTLE_ENDIAN).*/\\1=y/
228 s/.*(ARCH_BIG_ENDIAN).*/# \\1 is not set/
229 s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/\\1=y/
230 s/.*(ARCH_WANTS_BIG_ENDIAN).*/# \\1 is not set/
235 # Accomodate for old and new uClibc version, where the
236 # way to select between hard/soft float has changed
237 case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
238 y,) cat >>"${munge_file}" <<-ENDSED
239 s/^[^_]*(HAS_FPU).*/\\1=y/
240 s/.*(UCLIBC_HAS_FPU).*/\\1=y/
243 ,y) cat >>"${munge_file}" <<-ENDSED
244 s/^[^_]*(HAS_FPU).*/\\# \\1 is not set/
245 s/.*(UCLIBC_HAS_FPU).*/# \\1 is not set/
250 # Change paths to work with crosstool-NG
251 # From http://www.uclibc.org/cgi-bin/viewcvs.cgi?rev=16846&view=rev
252 # " we just want the kernel headers, not the whole kernel source ...
253 # " so people may need to update their paths slightly
254 quoted_kernel_source=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/include/?$,,; s,/,\\/,g;')
255 quoted_headers_dir=$(echo "${CT_HEADERS_DIR}" | sed -r -e 's,/,\\/,g;')
256 # CROSS_COMPILER_PREFIX is left as is, as the CROSS parameter is forced on the command line
257 # DEVEL_PREFIX is left as '/usr/' because it is post-pended to $PREFIX, wich is the correct value of ${PREFIX}/${TARGET}
258 # Some (old) versions of uClibc use KERNEL_SOURCE (which is _wrong_), and
259 # newer versions use KERNEL_HEADERS (which is right). See:
260 cat >>"${munge_file}" <<-ENDSED
261 s/^DEVEL_PREFIX=".*"/DEVEL_PREFIX="\\/usr\\/"/
262 s/^RUNTIME_PREFIX=".*"/RUNTIME_PREFIX="\\/"/
263 s/^SHARED_LIB_LOADER_PREFIX=.*/SHARED_LIB_LOADER_PREFIX="\\/lib\\/"/
264 s/^KERNEL_SOURCE=".*"/KERNEL_SOURCE="${quoted_kernel_source}"/
265 s/^KERNEL_HEADERS=".*"/KERNEL_HEADERS="${quoted_headers_dir}"/
266 s/^UCLIBC_DOWNLOAD_PREGENERATED_LOCALE=y/\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE is not set/
269 if [ "${CT_USE_PIPES}" = "y" ]; then
270 if grep UCLIBC_EXTRA_CFLAGS extra/Configs/Config.in >/dev/null 2>&1; then
271 # Good, there is special provision for such things as -pipe!
272 cat >>"${munge_file}" <<-ENDSED
273 s/^(UCLIBC_EXTRA_CFLAGS=".*)"$/\\1 -pipe"/
276 # Hack our -pipe into WARNINGS, which will be internally incorporated to
277 # CFLAGS. This a dirty hack, but yet needed
278 cat >> "${munge_file}" <<-ENDSED
279 s/^(WARNINGS=".*)"$/\\1 -pipe"/
285 # Note that the two PREGEN_LOCALE and the XLOCALE lines may be missing
286 # entirely if LOCALE is not set. If LOCALE was already set, we'll
287 # assume the user has already made all the appropriate generation
288 # arrangements. Note that having the uClibc Makefile download the
289 # pregenerated locales is not compatible with crosstool; besides,
290 # crosstool downloads them as part of getandpatch.sh.
291 if [ "${CT_LIBC_UCLIBC_LOCALES}" = "y" ] ; then
292 cat >>"${munge_file}" <<-ENDSED
293 s/^# UCLIBC_HAS_LOCALE is not set/UCLIBC_HAS_LOCALE=y\\nUCLIBC_PREGENERATED_LOCALE_DATA=y\\n\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\n\\# UCLIBC_HAS_XLOCALE is not
297 # Force on options needed for C++ if we'll be making a C++ compiler.
298 # I'm not sure locales are a requirement for doing C++... Are they?
299 if [ "${CT_CC_LANG_CXX}" = "y" ]; then
300 cat >>"${munge_file}" <<-ENDSED
301 s/^# DO_C99_MATH is not set/DO_C99_MATH=y/
302 s/^# UCLIBC_CTOR_DTOR is not set/UCLIBC_CTOR_DTOR=y/
303 # Add these three lines when doing C++?
304 s/^# UCLIBC_HAS_WCHAR is not set/UCLIBC_HAS_WCHAR=y/
305 #s/^# UCLIBC_HAS_LOCALE is not set/UCLIBC_HAS_LOCALE=y\\nUCLIBC_PREGENERATED_LOCALE_DATA=y\\n\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA is not set\\n\\# UCLIBC_HAS_XLOCALE is not set/
306 s/^# UCLIBC_HAS_GNU_GETOPT is not set/UCLIBC_HAS_GNU_GETOPT=y/
310 # Always build the libpthread_db
311 cat >>"${munge_file}" <<-ENDSED
312 s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/
315 # Force on debug options if asked for
316 case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in
318 cat >>"${munge_file}" <<-ENDSED
319 s/^DODEBUG=y/# DODEBUG is not set/
320 s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
321 s/^DOASSERTS=y/# DOASSERTS is not set/
322 s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
323 s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
324 s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
328 cat >>"${munge_file}" <<-ENDSED
329 s/^# DODEBUG is not set.*/DODEBUG=y/
330 s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
331 s/^DOASSERTS=y/# DOASSERTS is not set/
332 s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
333 s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
334 s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
338 cat >>"${munge_file}" <<-ENDSED
339 s/^# DODEBUG is not set.*/DODEBUG=y/
340 s/^# DODEBUG_PT is not set.*/DODEBUG_PT=y/
341 s/^# DOASSERTS is not set.*/DOASSERTS=y/
342 s/^# SUPPORT_LD_DEBUG is not set.*/SUPPORT_LD_DEBUG=y/
343 s/^# SUPPORT_LD_DEBUG_EARLY is not set.*/SUPPORT_LD_DEBUG_EARLY=y/
344 s/^# UCLIBC_MALLOC_DEBUGGING is not set/UCLIBC_MALLOC_DEBUGGING=y/
348 sed -r -f "${munge_file}" "${src_config_file}" >"${dst_config_file}"