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 "${CT_BUILD_DIR}/uClibc.config" .config
70 # uClibc uses the CROSS environment variable as a prefix to the
71 # compiler tools to use. Setting it to the empty string forces
72 # use of the native build host tools, which we need at this
73 # stage, as we don't have target tools yet.
74 CT_DoLog EXTRA "Applying configuration"
75 CT_DoYes "" |make CROSS= PREFIX="${CT_SYSROOT_DIR}/" oldconfig 2>&1 |CT_DoLog ALL
77 CT_DoLog EXTRA "Building headers"
78 make CROSS= PREFIX="${CT_SYSROOT_DIR}/" headers 2>&1 |CT_DoLog ALL
80 CT_DoLog EXTRA "Installing headers"
81 make CROSS= PREFIX="${CT_SYSROOT_DIR}/" install_dev 2>&1 |CT_DoLog ALL
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 "${CT_BUILD_DIR}/uClibc.config" .config
105 # uClibc uses the CROSS environment variable as a prefix to the compiler
106 # tools to use. The newly built tools should be in our path, so we need
107 # only give the correct name for them.
108 # Note about CFLAGS: In uClibc, CFLAGS are generated by Rules.mak,
109 # depending on the configuration of the library. That is, they are tailored
110 # to best fit the target. So it is useless and seems to be a bad thing to
111 # use LIBC_EXTRA_CFLAGS here.
112 CT_DoLog EXTRA "Applying configuration"
113 CT_DoYes "" |make CROSS=${CT_TARGET}- \
114 PREFIX="${CT_SYSROOT_DIR}/" \
115 oldconfig 2>&1 |CT_DoLog ALL
117 # We do _not_ want to strip anything for now, in case we specifically
118 # asked for a debug toolchain, thus the STRIPTOOL= assignment
119 CT_DoLog EXTRA "Building C library"
120 make CROSS=${CT_TARGET}- \
121 PREFIX="${CT_SYSROOT_DIR}/" \
123 all 2>&1 |CT_DoLog ALL
125 # YEM-FIXME: we want to install libraries in $SYSROOT/lib, but we don't want
126 # to install headers in $SYSROOT/include, thus making only install_runtime.
127 # Plus, the headers were previously installed earlier with install_dev, so
128 # all should be well. Unfortunately, the install_dev target does not install
129 # crti.o and consorts... :-( So reverting to target 'install'.
130 # Note: PARALLELMFLAGS is not usefull for installation.
131 # We do _not_ want to strip anything for now, in case we specifically
132 # asked for a debug toolchain, thus the STRIPTOOL= assignment
133 CT_DoLog EXTRA "Installing C library"
134 make CROSS=${CT_TARGET}- \
135 PREFIX="${CT_SYSROOT_DIR}/" \
137 install 2>&1 |CT_DoLog ALL
142 # This function is used to install those components needing the final C compiler
147 # Initialises the .config file to sensible values
150 mungeuClibcConfig() {
153 munge_file="${CT_BUILD_DIR}/munge-uClibc-config.sed"
155 echo -n >"${munge_file}"
157 # Hack our target in the config file.
158 # Also remove stripping: its the responsibility of the
159 # firmware builder to strip or not.
160 cat >>"${munge_file}" <<-ENDSED
161 s/^(TARGET_.*)=y$/# \\1 is not set/
162 s/^# TARGET_${CT_KERNEL_ARCH} is not set/TARGET_${CT_KERNEL_ARCH}=y/
163 s/^TARGET_ARCH=".*"/TARGET_ARCH="${CT_KERNEL_ARCH}"/
164 s/.*(DOSTRIP).*/# \\1 is not set/
167 # Accomodate for old and new uClibc versions, where the
168 # way to select between big/little endian has changed
169 case "${CT_ARCH_BE},${CT_ARCH_LE}" in
170 y,) cat >>"${munge_file}" <<-ENDSED
171 s/.*(ARCH_LITTLE_ENDIAN).*/# \\1 is not set/
172 s/.*(ARCH_BIG_ENDIAN).*/\\1=y/
173 s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/# \\1 is not set/
174 s/.*(ARCH_WANTS_BIG_ENDIAN).*/\\1=y/
177 ,y) cat >>"${munge_file}" <<-ENDSED
178 s/.*(ARCH_LITTLE_ENDIAN).*/\\1=y/
179 s/.*(ARCH_BIG_ENDIAN).*/# \\1 is not set/
180 s/.*(ARCH_WANTS_LITTLE_ENDIAN).*/\\1=y/
181 s/.*(ARCH_WANTS_BIG_ENDIAN).*/# \\1 is not set/
186 # Accomodate for old and new uClibc version, where the
187 # way to select between hard/soft float has changed
188 case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
189 y,) cat >>"${munge_file}" <<-ENDSED
190 s/.*(HAS_FPU).*/\\1=y/
191 s/.*(UCLIBC_HAS_FPU).*/\\1=y/
194 ,y) cat >>"${munge_file}" <<-ENDSED
195 s/.*(HAS_FPU).*/\\# \\1 is not set/
196 s/.*(UCLIBC_HAS_FPU).*/# \\1 is not set/
201 # Change paths to work with crosstool
202 # From http://www.uclibc.org/cgi-bin/viewcvs.cgi?rev=16846&view=rev
203 # " we just want the kernel headers, not the whole kernel source ...
204 # " so people may need to update their paths slightly
205 quoted_kernel_source=`echo "${CT_HEADERS_DIR}" | sed -r -e 's,/include/?$,,; s,/,\\\\/,g;'`
206 quoted_headers_dir=`echo ${CT_HEADERS_DIR} | sed -r -e 's,/,\\\\/,g;'`
207 # CROSS_COMPILER_PREFIX is left as is, as the CROSS parameter is forced on the command line
208 # DEVEL_PREFIX is left as '/usr/' because it is post-pended to $PREFIX, wich is the correct value of ${PREFIX}/${TARGET}
209 # Some (old) versions of uClibc use KERNEL_SOURCE (which is _wrong_), and
210 # newer versions use KERNEL_HEADERS (which is right). See:
211 cat >>"${munge_file}" <<-ENDSED
212 s/^DEVEL_PREFIX=".*"/DEVEL_PREFIX="\\/usr\\/"/
213 s/^RUNTIME_PREFIX=".*"/RUNTIME_PREFIX="\\/"/
214 s/^SHARED_LIB_LOADER_PREFIX=.*/SHARED_LIB_LOADER_PREFIX="\\/lib\\/"/
215 s/^KERNEL_SOURCE=".*"/KERNEL_SOURCE="${quoted_kernel_source}"/
216 s/^KERNEL_HEADERS=".*"/KERNEL_HEADERS="${quoted_headers_dir}"/
217 s/^UCLIBC_DOWNLOAD_PREGENERATED_LOCALE=y/\\# UCLIBC_DOWNLOAD_PREGENERATED_LOCALE is not set/
220 if [ "${CT_USE_PIPES}" = "y" ]; then
221 if grep UCLIBC_EXTRA_CFLAGS extra/Configs/Config.in >/dev/null 2>&1; then
222 # Good, there is special provision for such things as -pipe!
223 cat >>"${munge_file}" <<-ENDSED
224 s/^(UCLIBC_EXTRA_CFLAGS=".*)"$/\\1 -pipe"/
227 # Hack our -pipe into WARNINGS, which will be internally incorporated to
228 # CFLAGS. This a dirty hack, but yet needed
229 cat >> "${munge_file}" <<-ENDSED
230 s/^(WARNINGS=".*)"$/\\1 -pipe"/
235 # Force on options needed for C++ if we'll be making a C++ compiler.
236 # Note that the two PREGEN_LOCALE and the XLOCALE lines may be missing
237 # entirely if LOCALE is not set. If LOCALE was already set, we'll
238 # assume the user has already made all the appropriate generation
239 # arrangements. Note that having the uClibc Makefile download the
240 # pregenerated locales is not compatible with crosstool; besides,
241 # crosstool downloads them as part of getandpatch.sh.
242 if [ "${CT_CC_LANG_CXX}" = "y" ]; then
243 cat >>"${munge_file}" <<-ENDSED
244 s/^# DO_C99_MATH is not set/DO_C99_MATH=y/
245 s/^# UCLIBC_CTOR_DTOR is not set/UCLIBC_CTOR_DTOR=y/
246 # Add these three lines when doing C++?
247 #s/^# UCLIBC_HAS_WCHAR is not set/UCLIBC_HAS_WCHAR=y/
248 #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/
249 #s/^# UCLIBC_HAS_GNU_GETOPT is not set/UCLIBC_HAS_GNU_GETOPT=y/
253 # Force on debug options if asked for
254 case "${CT_LIBC_UCLIBC_DEBUG_LEVEL}" in
256 cat >>"${munge_file}" <<-ENDSED
257 s/^PTHREADS_DEBUG_SUPPORT=y/# PTHREADS_DEBUG_SUPPORT is not set/
258 s/^DODEBUG=y/# DODEBUG is not set/
259 s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
260 s/^DOASSERTS=y/# DOASSERTS is not set/
261 s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
262 s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
263 s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
267 cat >>"${munge_file}" <<-ENDSED
268 s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/
269 s/^# DODEBUG is not set.*/DODEBUG=y/
270 s/^DODEBUG_PT=y/# DODEBUG_PT is not set/
271 s/^DOASSERTS=y/# DOASSERTS is not set/
272 s/^SUPPORT_LD_DEBUG=y/# SUPPORT_LD_DEBUG is not set/
273 s/^SUPPORT_LD_DEBUG_EARLY=y/# SUPPORT_LD_DEBUG_EARLY is not set/
274 s/^UCLIBC_MALLOC_DEBUGGING=y/# UCLIBC_MALLOC_DEBUGGING is not set/
278 cat >>"${munge_file}" <<-ENDSED
279 s/^# PTHREADS_DEBUG_SUPPORT is not set.*/PTHREADS_DEBUG_SUPPORT=y/
280 s/^# DODEBUG is not set.*/DODEBUG=y/
281 s/^# DODEBUG_PT is not set.*/DODEBUG_PT=y/
282 s/^# DOASSERTS is not set.*/DOASSERTS=y/
283 s/^# SUPPORT_LD_DEBUG is not set.*/SUPPORT_LD_DEBUG=y/
284 s/^# SUPPORT_LD_DEBUG_EARLY is not set.*/SUPPORT_LD_DEBUG_EARLY=y/
285 s/^# UCLIBC_MALLOC_DEBUGGING is not set/UCLIBC_MALLOC_DEBUGGING=y/
289 sed -r -f "${munge_file}" "${src_config_file}" >"${dst_config_file}"