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Diffstat (limited to 'scripts/build/libc_glibc.sh')
| -rw-r--r-- | scripts/build/libc_glibc.sh | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/scripts/build/libc_glibc.sh b/scripts/build/libc_glibc.sh new file mode 100644 index 0000000..2fa9ac7 --- /dev/null +++ b/scripts/build/libc_glibc.sh @@ -0,0 +1,285 @@ +# 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 + +# There is nothing to do for glibc check config +do_libc_check_config() { + CT_DoStep INFO "Checking C library configuration" + CT_DoLog EXTRA "glibc has nothing to check" + CT_EndStep +} + +# 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'. + 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="" \ + --without-nptl 2>&1 |CT_DoLog DEBUG + + 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 $(CC). + # The real fix would be to get install-headers to not generate + # errlist-compat.c. + # Note: BOOTSTRAP_GCC is used by: + # patches/glibc-2.3.5/glibc-mips-bootstrap-gcc-header-install.patch + libc_cv_ppc_machine=yes \ + make CFLAGS=-DBOOTSTRAP_GCC sysdeps/gnu/errlist.c 2>&1 |CT_DoLog DEBUG + mkdir -p stdio-common + # sleep for 2 seconds for benefit of filesystems with lousy time + # resolution, like FAT, so make knows for sure errlist-compat.c doesn't + # need generating + sleep 2 + touch stdio-common/errlist-compat.c + fi + # Note: BOOTSTRAP_GCC (see above) + libc_cv_ppc_machine=yes \ + make cross-compiling=yes install_root=${CT_SYSROOT_DIR} \ + CFLAGS=-DBOOTSTRAP_GCC ${LIBC_SYSROOT_ARG} \ + install-headers 2>&1 |CT_DoLog DEBUG + + # Two headers -- stubs.h and features.h -- aren't installed by install-headers, + # so do them by hand. We can tolerate an empty stubs.h for the moment. + # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html + mkdir -p "${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="${extra_config} --enable-kernel=${CT_KERNEL_VERSION}" + 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_ADDONS_LIST}" in + y,) extra_config="${extra_config} --enable-add-ons";; + y,*) extra_config="${extra_config} --enable-add-ons=${CT_LIBC_ADDONS_LIST}";; + esac + + CT_DoLog DEBUG "Extra config args passed: \"${extra_config}\"" + + # Add some default CC args + extra_cc_args= + 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="${extra_cc_args} -mlittle-endian";; + esac;; + esac + + CT_DoLog DEBUG "Extra CC args passed: \"${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} \ + ${CT_LIBC_GLIBC_EXTRA_CONFIG} \ + ${extra_config} \ + --without-cvs \ + --disable-profile \ + --disable-debug \ + --without-gd \ + --with-headers="${CT_HEADERS_DIR}" 2>&1 |CT_DoLog DEBUG + + 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 \ + ${GLIBC_INITIAL_BUILD_RULE} 2>&1 |CT_DoLog DEBUG + + CT_DoLog EXTRA "Installing C library" + make install_root="${CT_SYSROOT_DIR}" \ + ${LIBC_SYSROOT_ARG} \ + ${GLIBC_INITIAL_INSTALL_RULE} 2>&1 |CT_DoLog DEBUG + + # This doesn't seem to work when building a crosscompiler, + # as it tries to execute localedef using the just-built ld.so!? + #CT_DoLog EXTRA "Installing locales" + #make localedata/install-locales install_root=${SYSROOT} 2>&1 |CT_DoLog DEBUG + + # 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/$file ]; then + mv "${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}/${file}_orig" + fi + done + done + + CT_EndStep +} + +# This function finishes the glibc install +do_libc_finish() { + # Finally, build and install glibc programs, now that libeh (if any) is installed + # Don't do this unless needed, 'cause it causes glibc-2.{1.3,2.2} to fail here with + # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__deregister_frame_info' + # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__register_frame_info' + [ "${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=${CT_TARGET}-ranlib 2>&1 |CT_DoLog DEBUG + + CT_DoLog EXTRA "Installing missing C library components" + # note: should do full install and then fix linker scripts, but this is faster + for t in bin rootsbin sbin data others; do + make install_root="${CT_SYSROOT_DIR}" \ + ${LIBC_SYSROOT_ARG} \ + install-${t} 2>&1 |CT_DoLog DEBUG + done +} |