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 "${CT_LIBC_FILE}" ftp://ftp.gnu.org/gnu/glibc
13 addons_list=`echo "${CT_LIBC_ADDONS}" |sed -r -e 's/,/ /g; s/ $//g;'`
14 for addon in ${addons_list}; do
15 CT_GetFile "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" ftp://ftp.gnu.org/gnu/glibc
17 [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && CT_GetFile "${CT_LIBC}-ports-${CT_LIBC_VERSION}" ftp://ftp.gnu.org/gnu/glibc
22 CT_ExtractAndPatch "${CT_LIBC_FILE}"
25 addons_list=`echo "${CT_LIBC_ADDONS}" |sed -r -e 's/,/ /g; s/ $//g;'`
26 for addon in ${addons_list}; do
27 CT_ExtractAndPatch "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
29 [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && CT_ExtractAndPatch "${CT_LIBC}-ports-${CT_LIBC_VERSION}"
32 # There is nothing to do for glibc check config
33 do_libc_check_config() {
34 CT_DoStep INFO "Checking C library configuration"
35 CT_DoLog EXTRA "glibc has nothing to check"
39 # This function installs the glibc headers needed to build the core compiler
41 # Only need to install bootstrap glibc headers for gcc-3.0 and above? Or maybe just gcc-3.3 and above?
42 # See also http://gcc.gnu.org/PR8180, which complains about the need for this step.
43 grep -q 'gcc-[34]' "${CT_SRC_DIR}/${CT_CC_CORE_FILE}/ChangeLog" || return 0
45 CT_DoStep INFO "Installing C library headers"
47 mkdir -p "${CT_BUILD_DIR}/build-libc-headers"
48 cd "${CT_BUILD_DIR}/build-libc-headers"
50 CT_DoLog EXTRA "Configuring C library headers"
52 # The following three things have to be done to build glibc-2.3.x, but they don't hurt older versions.
53 # 1. override CC to keep glibc's configure from using $TARGET-gcc.
54 # 2. disable linuxthreads, which needs a real cross-compiler to generate tcb-offsets.h properly
55 # 3. build with gcc 3.2 or later
56 # Compare these options with the ones used when building glibc for real below - they're different.
57 # As of glibc-2.3.2, to get this step to work for hppa-linux, you need --enable-hacker-mode
58 # so when configure checks to make sure gcc has access to the assembler you just built...
59 # Alternately, we could put ${PREFIX}/${TARGET}/bin on the path.
60 # Set --build so maybe we don't have to specify "cross-compiling=yes" below (haven't tried yet)
62 # "*** WARNING: Are you sure you do not want to use the `linuxthreads'"
64 # is ok here, since all we want are the basic headers at this point.
65 # Override libc_cv_ppc_machine so glibc-cvs doesn't complain
66 # 'a version of binutils that supports .machine "altivec" is needed'.
67 libc_cv_ppc_machine=yes \
69 "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
70 --build="${CT_BUILD}" \
71 --host="${CT_TARGET}" \
73 --with-headers="${CT_HEADERS_DIR}" \
75 --disable-sanity-checks \
76 --enable-hacker-mode \
78 --without-nptl 2>&1 |CT_DoLog DEBUG
80 CT_DoLog EXTRA "Installing C library headers"
82 if grep -q GLIBC_2.3 "${CT_SRC_DIR}/${CT_LIBC_FILE}/ChangeLog"; then
83 # glibc-2.3.x passes cross options to $(CC) when generating errlist-compat.c,
84 # which fails without a real cross-compiler.
85 # Fortunately, we don't need errlist-compat.c, since we just need .h
86 # files, so work around this by creating a fake errlist-compat.c and
87 # satisfying its dependencies.
88 # Another workaround might be to tell configure to not use any cross
90 # The real fix would be to get install-headers to not generate
92 # Note: BOOTSTRAP_GCC is used by:
93 # patches/glibc-2.3.5/glibc-mips-bootstrap-gcc-header-install.patch
94 libc_cv_ppc_machine=yes \
95 make CFLAGS=-DBOOTSTRAP_GCC sysdeps/gnu/errlist.c 2>&1 |CT_DoLog DEBUG
97 # sleep for 2 seconds for benefit of filesystems with lousy time
98 # resolution, like FAT, so make knows for sure errlist-compat.c doesn't
101 touch stdio-common/errlist-compat.c
103 # Note: BOOTSTRAP_GCC (see above)
104 libc_cv_ppc_machine=yes \
105 make cross-compiling=yes install_root=${CT_SYSROOT_DIR} \
106 CFLAGS=-DBOOTSTRAP_GCC ${LIBC_SYSROOT_ARG} \
107 install-headers 2>&1 |CT_DoLog DEBUG
109 # Two headers -- stubs.h and features.h -- aren't installed by install-headers,
110 # so do them by hand. We can tolerate an empty stubs.h for the moment.
111 # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html
112 mkdir -p "${CT_HEADERS_DIR}/gnu"
113 touch "${CT_HEADERS_DIR}/gnu/stubs.h"
114 cp "${CT_SRC_DIR}/${CT_LIBC_FILE}/include/features.h" "${CT_HEADERS_DIR}/features.h"
116 # Building the bootstrap gcc requires either setting inhibit_libc, or
117 # having a copy of stdio_lim.h... see
118 # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html
119 cp bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"
121 # Following error building gcc-4.0.0's gcj:
122 # error: bits/syscall.h: No such file or directory
123 # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
124 # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
125 [ "${CT_ARCH}" != "arm" ] && cp misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true
130 # This function builds and install the full glibc
132 CT_DoStep INFO "Installing C library"
134 mkdir -p "${CT_BUILD_DIR}/build-libc"
135 cd "${CT_BUILD_DIR}/build-libc"
137 CT_DoLog EXTRA "Configuring C library"
139 # Add some default glibc config options if not given by user.
141 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
143 *) extra_config="${extra_config} --enable-kernel=${CT_KERNEL_VERSION}"
145 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
147 *) extra_config="${extra_config} --without-tls"
149 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
151 *) extra_config="${extra_config} --without-__thread"
153 case "${CT_SHARED_LIBS}" in
154 y) extra_config="${extra_config} --enable-shared";;
155 *) extra_config="${extra_config} --disable-shared";;
157 case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
160 *) case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
161 y,) extra_config="${extra_config} --with-fp";;
162 ,y) extra_config="${extra_config} --without-fp";;
165 case "${CT_LIBC_ADDONS},${CT_LIBC_ADDONS_LIST}" in
166 y,) extra_config="${extra_config} --enable-add-ons";;
167 y,*) extra_config="${extra_config} --enable-add-ons=${CT_LIBC_ADDONS_LIST}";;
170 CT_DoLog DEBUG "Extra config args passed: \"${extra_config}\""
172 # Add some default CC args
173 extra_cc_args="${CT_CFLAGS_FOR_HOST}"
174 case "${CT_LIBC_EXTRA_CC_ARGS}" in
176 *-mlittle-endian*) ;;
177 *) case "${CT_ARCH_BE},${CT_ARCH_LE}" in
178 y,) extra_cc_args="${extra_cc_args} -mbig-endian";;
179 ,y) extra_cc_args="${extra_cc_args} -mlittle-endian";;
183 CT_DoLog DEBUG "Extra CC args passed: \"${extra_cc_args}\""
185 # sh3 and sh4 really need to set configparms as of gcc-3.4/glibc-2.3.2
186 # note: this is awkward, doesn't work well if you need more than one line in configparms
187 echo ${CT_LIBC_GLIBC_CONFIGPARMS} > configparms
189 # For glibc 2.3.4 and later we need to set some autoconf cache
190 # variables, because nptl/sysdeps/pthread/configure.in does not
191 # work when cross-compiling.
192 if test -d ${GLIBC_DIR}/nptl; then
193 libc_cv_forced_unwind=yes
194 libc_cv_c_cleanup=yes
195 export libc_cv_forced_unwind libc_cv_c_cleanup
198 # Configure with --prefix the way we want it on the target...
199 # There are a whole lot of settings here. You'll probably want
200 # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG
201 # Compare these options with the ones used when installing the glibc headers above - they're different.
202 # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory"
203 # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html.
204 # Set BUILD_CC, or you won't be able to build datafiles
205 # Set --build, else glibc-2.3.2 will think you're not cross-compiling, and try to run the test programs
207 BUILD_CC=${CT_CC_NATIVE} \
208 CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O" \
209 CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
211 RANLIB=${CT_TARGET}-ranlib \
212 "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
214 --build=${CT_BUILD} --host=${CT_TARGET} \
215 ${CT_LIBC_GLIBC_EXTRA_CONFIG} \
221 --with-headers="${CT_HEADERS_DIR}" 2>&1 |CT_DoLog DEBUG
223 if grep -l '^install-lib-all:' "${CT_SRC_DIR}/${CT_LIBC_FILE}/Makerules" > /dev/null; then
225 # If the install-lib-all target (which is added by our make-install-lib-all.patch)
226 # is present, it means we're building glibc-2.3.3 or later, and we can't
227 # build programs yet, as they require libeh, which won't be installed
228 # until full build of gcc
229 GLIBC_INITIAL_BUILD_RULE=lib
230 GLIBC_INITIAL_INSTALL_RULE="install-lib-all install-headers"
231 GLIBC_INSTALL_APPS_LATER=yes
234 # We can build and install everything with the bootstrap compiler.
235 GLIBC_INITIAL_BUILD_RULE=all
236 GLIBC_INITIAL_INSTALL_RULE=install
237 GLIBC_INSTALL_APPS_LATER=no
240 # If this fails with an error like this:
241 # ... linux/autoconf.h: No such file or directory
242 # then you need to set the KERNELCONFIG variable to point to a .config file for this arch.
243 # The following architectures are known to need kernel .config: alpha, arm, ia64, s390, sh, sparc
244 # Note: LD and RANLIB needed by glibc-2.1.3's c_stub directory, at least on macosx
245 # No need for PARALLELMFLAGS here, Makefile already reads this environment variable
246 CT_DoLog EXTRA "Building C library"
247 make LD=${CT_TARGET}-ld \
248 RANLIB=${CT_TARGET}-ranlib \
249 ${GLIBC_INITIAL_BUILD_RULE} 2>&1 |CT_DoLog DEBUG
251 CT_DoLog EXTRA "Installing C library"
252 make install_root="${CT_SYSROOT_DIR}" \
253 ${LIBC_SYSROOT_ARG} \
254 ${GLIBC_INITIAL_INSTALL_RULE} 2>&1 |CT_DoLog DEBUG
256 # This doesn't seem to work when building a crosscompiler,
257 # as it tries to execute localedef using the just-built ld.so!?
258 #CT_DoLog EXTRA "Installing locales"
259 #make localedata/install-locales install_root=${SYSROOT} 2>&1 |CT_DoLog DEBUG
261 # Fix problems in linker scripts.
263 # 1. Remove absolute paths
264 # Any file in a list of known suspects that isn't a symlink is assumed to be a linker script.
265 # FIXME: test -h is not portable
266 # FIXME: probably need to check more files than just these three...
267 # Need to use sed instead of just assuming we know what's in libc.so because otherwise alpha breaks
269 # 2. Remove lines containing BUG per http://sources.redhat.com/ml/bug-glibc/2003-05/msg00055.html,
270 # needed to fix gcc-3.2.3/glibc-2.3.2 targeting arm
272 # To make "strip *.so.*" not fail (ptxdist does this), rename to .so_orig rather than .so.orig
273 CT_DoLog EXTRA "Fixing C library linker scripts"
274 for file in libc.so libpthread.so libgcc_s.so; do
275 for dir in lib lib64 usr/lib usr/lib64; do
276 if [ -f "${CT_SYSROOT_DIR}/${dir}/${file}" -a ! -L ${CT_SYSROOT_DIR}/$lib/$file ]; then
277 mv "${CT_SYSROOT_DIR}/${dir}/${file}" "${CT_SYSROOT_DIR}/${dir}/${file}_orig"
278 CT_DoLog DEBUG "Fixing \"${CT_SYS_ROOT_DIR}/${dir}/${file}\""
279 sed -i -r -e 's,/usr/lib/,,g;
283 /BUG in libc.scripts.output-format.sed/d' "${CT_SYSROOT_DIR}/${dir}/${file}_orig"
291 # This function finishes the glibc install
293 # Finally, build and install glibc programs, now that libeh (if any) is installed
294 # Don't do this unless needed, 'cause it causes glibc-2.{1.3,2.2} to fail here with
295 # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__deregister_frame_info'
296 # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__register_frame_info'
297 [ "${GLIBC_INSTALL_APPS_LATER}" = "yes" ] || return 0
299 CT_DoStep INFO "Finishing C library"
301 cd "${CT_BUILD_DIR}/build-libc"
303 CT_DoLog EXTRA "Re-building C library"
304 make LD=${CT_TARGET}-ld RANLIB=${CT_TARGET}-ranlib 2>&1 |CT_DoLog DEBUG
306 CT_DoLog EXTRA "Installing missing C library components"
307 # note: should do full install and then fix linker scripts, but this is faster
308 for t in bin rootsbin sbin data others; do
309 make install_root="${CT_SYSROOT_DIR}" \
310 ${LIBC_SYSROOT_ARG} \
311 install-${t} 2>&1 |CT_DoLog DEBUG