# This file adds functions to build glibc # Copyright 2007 Yann E. MORIN # Licensed under the GPL v2. See COPYING in the root of this package # Download glibc do_libc_get() { # Ah! Not all GNU folks seem stupid. All glibc releases are in the same # directory. Good. Alas, there is no snapshot there. I'll deal with them # later on... :-/ CT_GetFile "${CT_LIBC_FILE}" ftp://ftp.gnu.org/gnu/glibc # C library addons addons_list=`echo "${CT_LIBC_ADDONS_LIST}" |sed -r -e 's/,/ /g; s/ $//g;'` for addon in ${addons_list}; do CT_GetFile "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" ftp://ftp.gnu.org/gnu/glibc done [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && CT_GetFile "${CT_LIBC}-ports-${CT_LIBC_VERSION}" ftp://ftp.gnu.org/gnu/glibc return 0 } # Extract glibc do_libc_extract() { CT_ExtractAndPatch "${CT_LIBC_FILE}" # C library addons addons_list=`echo "${CT_LIBC_ADDONS_LIST}" |sed -r -e 's/,/ /g; s/ $//g;'` for addon in ${addons_list}; do CT_ExtractAndPatch "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" done [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && CT_ExtractAndPatch "${CT_LIBC}-ports-${CT_LIBC_VERSION}" return 0 } # There is nothing to do for glibc check config do_libc_check_config() { : } # This function installs the glibc headers needed to build the core compiler do_libc_headers() { # Only need to install bootstrap glibc headers for gcc-3.0 and above? Or maybe just gcc-3.3 and above? # See also http://gcc.gnu.org/PR8180, which complains about the need for this step. grep -q 'gcc-[34]' "${CT_SRC_DIR}/${CT_CC_CORE_FILE}/ChangeLog" || return 0 CT_DoStep INFO "Installing C library headers" mkdir -p "${CT_BUILD_DIR}/build-libc-headers" cd "${CT_BUILD_DIR}/build-libc-headers" CT_DoLog EXTRA "Configuring C library headers" # The following three things have to be done to build glibc-2.3.x, but they don't hurt older versions. # 1. override CC to keep glibc's configure from using $TARGET-gcc. # 2. disable linuxthreads, which needs a real cross-compiler to generate tcb-offsets.h properly # 3. build with gcc 3.2 or later # Compare these options with the ones used when building glibc for real below - they're different. # As of glibc-2.3.2, to get this step to work for hppa-linux, you need --enable-hacker-mode # so when configure checks to make sure gcc has access to the assembler you just built... # Alternately, we could put ${PREFIX}/${TARGET}/bin on the path. # Set --build so maybe we don't have to specify "cross-compiling=yes" below (haven't tried yet) # Note: the warning # "*** WARNING: Are you sure you do not want to use the `linuxthreads'" # *** add-on?" # is ok here, since all we want are the basic headers at this point. # Override libc_cv_ppc_machine so glibc-cvs doesn't complain # 'a version of binutils that supports .machine "altivec" is needed'. # We also need to use the ports addon if specified addons= [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons="${CT_LIBC}-ports-${CT_LIBC_VERSION}" libc_cv_ppc_machine=yes \ CC=${CT_CC_NATIVE} \ "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \ --build="${CT_BUILD}" \ --host="${CT_TARGET}" \ --prefix=/usr \ --with-headers="${CT_HEADERS_DIR}" \ --without-cvs \ --disable-sanity-checks \ --enable-hacker-mode \ --enable-add-ons="${addons}" \ --without-nptl 2>&1 |CT_DoLog ALL CT_DoLog EXTRA "Installing C library headers" if grep -q GLIBC_2.3 "${CT_SRC_DIR}/${CT_LIBC_FILE}/ChangeLog"; then # glibc-2.3.x passes cross options to $(CC) when generating errlist-compat.c, # which fails without a real cross-compiler. # Fortunately, we don't need errlist-compat.c, since we just need .h # files, so work around this by creating a fake errlist-compat.c and # satisfying its dependencies. # Another workaround might be to tell configure to not use any cross # options to $(CC). # The real fix would be to get install-headers to not generate # errlist-compat.c. # Note: BOOTSTRAP_GCC is used by: # patches/glibc-2.3.5/glibc-mips-bootstrap-gcc-header-install.patch libc_cv_ppc_machine=yes \ make CFLAGS="-O -DBOOTSTRAP_GCC" sysdeps/gnu/errlist.c 2>&1 |CT_DoLog ALL mkdir -p stdio-common # sleep for 2 seconds for benefit of filesystems with lousy time # resolution, like FAT, so make knows for sure errlist-compat.c doesn't # need generating sleep 2 touch stdio-common/errlist-compat.c fi # Note: BOOTSTRAP_GCC (see above) libc_cv_ppc_machine=yes \ make cross-compiling=yes install_root=${CT_SYSROOT_DIR} \ CFLAGS="-O -DBOOTSTRAP_GCC" ${LIBC_SYSROOT_ARG} \ install-headers 2>&1 |CT_DoLog ALL # Two headers -- stubs.h and features.h -- aren't installed by install-headers, # so do them by hand. We can tolerate an empty stubs.h for the moment. # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html mkdir -p "${CT_HEADERS_DIR}/gnu" touch "${CT_HEADERS_DIR}/gnu/stubs.h" cp "${CT_SRC_DIR}/${CT_LIBC_FILE}/include/features.h" "${CT_HEADERS_DIR}/features.h" # Building the bootstrap gcc requires either setting inhibit_libc, or # having a copy of stdio_lim.h... see # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html cp bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h" # Following error building gcc-4.0.0's gcj: # error: bits/syscall.h: No such file or directory # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html [ "${CT_ARCH}" != "arm" ] && cp misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true CT_EndStep } # This function builds and install the full glibc do_libc() { CT_DoStep INFO "Installing C library" mkdir -p "${CT_BUILD_DIR}/build-libc" cd "${CT_BUILD_DIR}/build-libc" CT_DoLog EXTRA "Configuring C library" # Add some default glibc config options if not given by user. extra_config="" case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in *enable-kernel*) ;; *) extra_config="${extra_config} --enable-kernel=`echo ${CT_KERNEL_VERSION} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;'`" esac case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in *-tls*) ;; *) extra_config="${extra_config} --without-tls" esac case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in *-__thread*) ;; *) extra_config="${extra_config} --without-__thread" esac case "${CT_SHARED_LIBS}" in y) extra_config="${extra_config} --enable-shared";; *) extra_config="${extra_config} --disable-shared";; esac case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in *--with-fp*) ;; *--without-fp*) ;; *) case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in y,) extra_config="${extra_config} --with-fp";; ,y) extra_config="${extra_config} --without-fp";; esac;; esac case "${CT_LIBC_ADDONS},${CT_LIBC_GLIBC_USE_PORTS}" in y,y) addons_config="--enable-add-ons=${CT_LIBC_ADDONS_LIST},${CT_LIBC}-ports-${CT_LIBC_VERSION}";; y,) addons_config="--enable-add-ons=${CT_LIBC_ADDONS_LIST}";; ,y) addons_config="--enable-add-ons=${CT_LIBC}-ports-${CT_LIBC_VERSION}";; *) addons_config="";; esac # Add some default CC args extra_cc_args="${CT_CFLAGS_FOR_HOST}" case "${CT_LIBC_EXTRA_CC_ARGS}" in *-mbig-endian*) ;; *-mlittle-endian*) ;; *) case "${CT_ARCH_BE},${CT_ARCH_LE}" in y,) extra_cc_args="${extra_cc_args} -mbig-endian";; ,y) extra_cc_args="${extra_cc_args} -mlittle-endian";; esac;; esac CT_DoLog DEBUG "Configuring with addons : \"${addons_config}\"" CT_DoLog DEBUG "Extra config args passed: \"${extra_config}\"" CT_DoLog DEBUG "Extra CC args passed: \"${extra_cc_args}\"" # sh3 and sh4 really need to set configparms as of gcc-3.4/glibc-2.3.2 # note: this is awkward, doesn't work well if you need more than one line in configparms echo ${CT_LIBC_GLIBC_CONFIGPARMS} > configparms # For glibc 2.3.4 and later we need to set some autoconf cache # variables, because nptl/sysdeps/pthread/configure.in does not # work when cross-compiling. if test -d ${GLIBC_DIR}/nptl; then libc_cv_forced_unwind=yes libc_cv_c_cleanup=yes export libc_cv_forced_unwind libc_cv_c_cleanup fi # Configure with --prefix the way we want it on the target... # There are a whole lot of settings here. You'll probably want # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG # Compare these options with the ones used when installing the glibc headers above - they're different. # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory" # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html. # Set BUILD_CC, or you won't be able to build datafiles # Set --build, else glibc-2.3.2 will think you're not cross-compiling, and try to run the test programs BUILD_CC=${CT_CC_NATIVE} \ CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O" \ CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \ AR=${CT_TARGET}-ar \ RANLIB=${CT_TARGET}-ranlib \ "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \ --prefix=/usr \ --build=${CT_BUILD} --host=${CT_TARGET} \ --without-cvs \ --without-nptl \ --disable-profile \ --disable-debug \ --without-gd \ --with-headers="${CT_HEADERS_DIR}" \ ${addons_config} \ ${extra_config} \ ${CT_LIBC_GLIBC_EXTRA_CONFIG} 2>&1 |CT_DoLog ALL if grep -l '^install-lib-all:' "${CT_SRC_DIR}/${CT_LIBC_FILE}/Makerules" > /dev/null; then # nptl-era glibc. # If the install-lib-all target (which is added by our make-install-lib-all.patch) # is present, it means we're building glibc-2.3.3 or later, and we can't # build programs yet, as they require libeh, which won't be installed # until full build of gcc GLIBC_INITIAL_BUILD_RULE=lib GLIBC_INITIAL_INSTALL_RULE="install-lib-all install-headers" GLIBC_INSTALL_APPS_LATER=yes else # classic glibc. # We can build and install everything with the bootstrap compiler. GLIBC_INITIAL_BUILD_RULE=all GLIBC_INITIAL_INSTALL_RULE=install GLIBC_INSTALL_APPS_LATER=no fi # If this fails with an error like this: # ... linux/autoconf.h: No such file or directory # then you need to set the KERNELCONFIG variable to point to a .config file for this arch. # The following architectures are known to need kernel .config: alpha, arm, ia64, s390, sh, sparc # Note: LD and RANLIB needed by glibc-2.1.3's c_stub directory, at least on macosx # No need for PARALLELMFLAGS here, Makefile already reads this environment variable CT_DoLog EXTRA "Building C library" make LD=${CT_TARGET}-ld \ RANLIB=${CT_TARGET}-ranlib \ ${GLIBC_INITIAL_BUILD_RULE} 2>&1 |CT_DoLog ALL CT_DoLog EXTRA "Installing C library" make install_root="${CT_SYSROOT_DIR}" \ ${LIBC_SYSROOT_ARG} \ ${GLIBC_INITIAL_INSTALL_RULE} 2>&1 |CT_DoLog ALL # This doesn't seem to work when building a crosscompiler, # as it tries to execute localedef using the just-built ld.so!? #CT_DoLog EXTRA "Installing locales" #make localedata/install-locales install_root=${SYSROOT} 2>&1 |CT_DoLog ALL # Fix problems in linker scripts. # # 1. Remove absolute paths # Any file in a list of known suspects that isn't a symlink is assumed to be a linker script. # FIXME: test -h is not portable # FIXME: probably need to check more files than just these three... # Need to use sed instead of just assuming we know what's in libc.so because otherwise alpha breaks # # 2. Remove lines containing BUG per http://sources.redhat.com/ml/bug-glibc/2003-05/msg00055.html, # needed to fix gcc-3.2.3/glibc-2.3.2 targeting arm # # To make "strip *.so.*" not fail (ptxdist does this), rename to .so_orig rather than .so.orig CT_DoLog EXTRA "Fixing C library linker scripts" for file in libc.so libpthread.so libgcc_s.so; do for dir in lib lib64 usr/lib usr/lib64; do if [ -f "${CT_SYSROOT_DIR}/${dir}/${file}" -a ! -L ${CT_SYSROOT_DIR}/$lib/$file ]; then cp "${CT_SYSROOT_DIR}/${dir}/${file}" "${CT_SYSROOT_DIR}/${dir}/${file}_orig" CT_DoLog DEBUG "Fixing \"${CT_SYS_ROOT_DIR}/${dir}/${file}\"" sed -i -r -e 's,/usr/lib/,,g; s,/usr/lib64/,,g; s,/lib/,,g; s,/lib64/,,g; /BUG in libc.scripts.output-format.sed/d' "${CT_SYSROOT_DIR}/${dir}/${file}" fi done done CT_EndStep } # This function finishes the glibc install do_libc_finish() { # Finally, build and install glibc programs, now that libeh (if any) is installed # Don't do this unless needed, 'cause it causes glibc-2.{1.3,2.2} to fail here with # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__deregister_frame_info' # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__register_frame_info' [ "${GLIBC_INSTALL_APPS_LATER}" = "yes" ] || return 0 CT_DoStep INFO "Finishing C library" cd "${CT_BUILD_DIR}/build-libc" CT_DoLog EXTRA "Re-building C library" make LD=${CT_TARGET}-ld RANLIB=${CT_TARGET}-ranlib 2>&1 |CT_DoLog ALL CT_DoLog EXTRA "Installing missing C library components" # note: should do full install and then fix linker scripts, but this is faster for t in bin rootsbin sbin data others; do make install_root="${CT_SYSROOT_DIR}" \ ${LIBC_SYSROOT_ARG} \ install-${t} 2>&1 |CT_DoLog ALL done CT_EndStep }