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https://github.com/crosstool-ng/crosstool-ng.git
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1906cf93f8
You might just say: 'Yeah! crosstool-NG's got its own repo!". Unfortunately, that's because the previous repo got damaged beyond repair and I had no backup. That means I'm putting backups in place in the afternoon. That also means we've lost history... :-(
286 lines
13 KiB
Bash
286 lines
13 KiB
Bash
# This file adds functions to build glibc
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# Copyright 2007 Yann E. MORIN
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# Licensed under the GPL v2. See COPYING in the root of this package
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# There is nothing to do for glibc check config
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do_libc_check_config() {
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CT_DoStep INFO "Checking C library configuration"
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CT_DoLog EXTRA "glibc has nothing to check"
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CT_EndStep
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}
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# This function installs the glibc headers needed to build the core compiler
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do_libc_headers() {
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# Only need to install bootstrap glibc headers for gcc-3.0 and above? Or maybe just gcc-3.3 and above?
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# See also http://gcc.gnu.org/PR8180, which complains about the need for this step.
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grep -q 'gcc-[34]' "${CT_SRC_DIR}/${CT_CC_CORE_FILE}/ChangeLog" || return 0
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CT_DoStep INFO "Installing C library headers"
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mkdir -p "${CT_BUILD_DIR}/build-libc-headers"
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cd "${CT_BUILD_DIR}/build-libc-headers"
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CT_DoLog EXTRA "Configuring C library headers"
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# The following three things have to be done to build glibc-2.3.x, but they don't hurt older versions.
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# 1. override CC to keep glibc's configure from using $TARGET-gcc.
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# 2. disable linuxthreads, which needs a real cross-compiler to generate tcb-offsets.h properly
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# 3. build with gcc 3.2 or later
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# Compare these options with the ones used when building glibc for real below - they're different.
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# As of glibc-2.3.2, to get this step to work for hppa-linux, you need --enable-hacker-mode
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# so when configure checks to make sure gcc has access to the assembler you just built...
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# Alternately, we could put ${PREFIX}/${TARGET}/bin on the path.
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# Set --build so maybe we don't have to specify "cross-compiling=yes" below (haven't tried yet)
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# Note: the warning
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# "*** WARNING: Are you sure you do not want to use the `linuxthreads'"
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# *** add-on?"
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# is ok here, since all we want are the basic headers at this point.
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# Override libc_cv_ppc_machine so glibc-cvs doesn't complain
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# 'a version of binutils that supports .machine "altivec" is needed'.
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libc_cv_ppc_machine=yes \
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CC=${CT_CC_NATIVE} \
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"${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
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--build="${CT_BUILD}" \
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--host="${CT_TARGET}" \
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--prefix=/usr \
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--with-headers="${CT_HEADERS_DIR}" \
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--without-cvs --disable-sanity-checks \
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--enable-hacker-mode \
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--enable-add-ons="" \
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--without-nptl 2>&1 |CT_DoLog DEBUG
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CT_DoLog EXTRA "Installing C library headers"
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if grep -q GLIBC_2.3 "${CT_SRC_DIR}/${CT_LIBC_FILE}/ChangeLog"; then
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# glibc-2.3.x passes cross options to $(CC) when generating errlist-compat.c,
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# which fails without a real cross-compiler.
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# Fortunately, we don't need errlist-compat.c, since we just need .h
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# files, so work around this by creating a fake errlist-compat.c and
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# satisfying its dependencies.
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# Another workaround might be to tell configure to not use any cross
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# options to $(CC).
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# The real fix would be to get install-headers to not generate
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# errlist-compat.c.
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# Note: BOOTSTRAP_GCC is used by:
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# patches/glibc-2.3.5/glibc-mips-bootstrap-gcc-header-install.patch
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libc_cv_ppc_machine=yes \
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make CFLAGS=-DBOOTSTRAP_GCC sysdeps/gnu/errlist.c 2>&1 |CT_DoLog DEBUG
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mkdir -p stdio-common
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# sleep for 2 seconds for benefit of filesystems with lousy time
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# resolution, like FAT, so make knows for sure errlist-compat.c doesn't
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# need generating
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sleep 2
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touch stdio-common/errlist-compat.c
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fi
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# Note: BOOTSTRAP_GCC (see above)
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libc_cv_ppc_machine=yes \
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make cross-compiling=yes install_root=${CT_SYSROOT_DIR} \
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CFLAGS=-DBOOTSTRAP_GCC ${LIBC_SYSROOT_ARG} \
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install-headers 2>&1 |CT_DoLog DEBUG
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# Two headers -- stubs.h and features.h -- aren't installed by install-headers,
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# so do them by hand. We can tolerate an empty stubs.h for the moment.
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# See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html
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mkdir -p "${CT_HEADERS_DIR}/gnu"
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touch "${CT_HEADERS_DIR}/gnu/stubs.h"
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cp "${CT_SRC_DIR}/${CT_LIBC_FILE}/include/features.h" "${CT_HEADERS_DIR}/features.h"
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# Building the bootstrap gcc requires either setting inhibit_libc, or
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# having a copy of stdio_lim.h... see
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# http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html
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cp bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"
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# Following error building gcc-4.0.0's gcj:
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# error: bits/syscall.h: No such file or directory
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# solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
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# but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
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[ "${CT_ARCH}" != "arm" ] && cp misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true
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CT_EndStep
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}
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# This function builds and install the full glibc
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do_libc() {
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CT_DoStep INFO "Installing C library"
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mkdir -p "${CT_BUILD_DIR}/build-libc"
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cd "${CT_BUILD_DIR}/build-libc"
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CT_DoLog EXTRA "Configuring C library"
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# Add some default glibc config options if not given by user.
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extra_config=""
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case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
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*enable-kernel*) ;;
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*) extra_config="${extra_config} --enable-kernel=${CT_KERNEL_VERSION}"
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esac
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case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
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*-tls*) ;;
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*) extra_config="${extra_config} --without-tls"
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esac
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case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
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*-__thread*) ;;
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*) extra_config="${extra_config} --without-__thread"
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esac
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case "${CT_SHARED_LIBS}" in
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y) extra_config="${extra_config} --enable-shared";;
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*) extra_config="${extra_config} --disable-shared";;
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esac
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case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
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*--with-fp*) ;;
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*--without-fp*) ;;
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*) case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
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y,) extra_config="${extra_config} --with-fp";;
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,y) extra_config="${extra_config} --without-fp";;
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esac;;
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esac
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case "${CT_LIBC_ADDONS},${CT_LIBC_ADDONS_LIST}" in
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y,) extra_config="${extra_config} --enable-add-ons";;
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y,*) extra_config="${extra_config} --enable-add-ons=${CT_LIBC_ADDONS_LIST}";;
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esac
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CT_DoLog DEBUG "Extra config args passed: \"${extra_config}\""
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# Add some default CC args
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extra_cc_args=
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case "${CT_LIBC_EXTRA_CC_ARGS}" in
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*-mbig-endian*) ;;
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*-mlittle-endian*) ;;
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*) case "${CT_ARCH_BE},${CT_ARCH_LE}" in
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y,) extra_cc_args="${extra_cc_args} -mbig-endian";;
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,y) extra_cc_args="${extra_cc_args} -mlittle-endian";;
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esac;;
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esac
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CT_DoLog DEBUG "Extra CC args passed: \"${extra_cc_args}\""
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# sh3 and sh4 really need to set configparms as of gcc-3.4/glibc-2.3.2
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# note: this is awkward, doesn't work well if you need more than one line in configparms
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echo ${CT_LIBC_GLIBC_CONFIGPARMS} > configparms
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# For glibc 2.3.4 and later we need to set some autoconf cache
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# variables, because nptl/sysdeps/pthread/configure.in does not
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# work when cross-compiling.
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if test -d ${GLIBC_DIR}/nptl; then
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libc_cv_forced_unwind=yes
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libc_cv_c_cleanup=yes
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export libc_cv_forced_unwind libc_cv_c_cleanup
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fi
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# Configure with --prefix the way we want it on the target...
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# There are a whole lot of settings here. You'll probably want
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# to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG
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# Compare these options with the ones used when installing the glibc headers above - they're different.
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# Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory"
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# See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html.
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# Set BUILD_CC, or you won't be able to build datafiles
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# Set --build, else glibc-2.3.2 will think you're not cross-compiling, and try to run the test programs
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BUILD_CC=${CT_CC_NATIVE} \
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CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O" \
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CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
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AR=${CT_TARGET}-ar \
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RANLIB=${CT_TARGET}-ranlib \
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"${CT_SRC_DIR}/${CT_LIBC_FILE}/configure" \
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--prefix=/usr \
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--build=${CT_BUILD} --host=${CT_TARGET} \
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${CT_LIBC_GLIBC_EXTRA_CONFIG} \
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${extra_config} \
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--without-cvs \
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--disable-profile \
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--disable-debug \
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--without-gd \
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--with-headers="${CT_HEADERS_DIR}" 2>&1 |CT_DoLog DEBUG
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if grep -l '^install-lib-all:' "${CT_SRC_DIR}/${CT_LIBC_FILE}/Makerules" > /dev/null; then
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# nptl-era glibc.
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# If the install-lib-all target (which is added by our make-install-lib-all.patch)
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# is present, it means we're building glibc-2.3.3 or later, and we can't
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# build programs yet, as they require libeh, which won't be installed
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# until full build of gcc
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GLIBC_INITIAL_BUILD_RULE=lib
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GLIBC_INITIAL_INSTALL_RULE="install-lib-all install-headers"
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GLIBC_INSTALL_APPS_LATER=yes
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else
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# classic glibc.
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# We can build and install everything with the bootstrap compiler.
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GLIBC_INITIAL_BUILD_RULE=all
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GLIBC_INITIAL_INSTALL_RULE=install
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GLIBC_INSTALL_APPS_LATER=no
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fi
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# If this fails with an error like this:
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# ... linux/autoconf.h: No such file or directory
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# then you need to set the KERNELCONFIG variable to point to a .config file for this arch.
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# The following architectures are known to need kernel .config: alpha, arm, ia64, s390, sh, sparc
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# Note: LD and RANLIB needed by glibc-2.1.3's c_stub directory, at least on macosx
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# No need for PARALLELMFLAGS here, Makefile already reads this environment variable
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CT_DoLog EXTRA "Building C library"
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make LD=${CT_TARGET}-ld \
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RANLIB=${CT_TARGET}-ranlib \
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${GLIBC_INITIAL_BUILD_RULE} 2>&1 |CT_DoLog DEBUG
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CT_DoLog EXTRA "Installing C library"
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make install_root="${CT_SYSROOT_DIR}" \
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${LIBC_SYSROOT_ARG} \
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${GLIBC_INITIAL_INSTALL_RULE} 2>&1 |CT_DoLog DEBUG
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# This doesn't seem to work when building a crosscompiler,
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# as it tries to execute localedef using the just-built ld.so!?
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#CT_DoLog EXTRA "Installing locales"
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#make localedata/install-locales install_root=${SYSROOT} 2>&1 |CT_DoLog DEBUG
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# Fix problems in linker scripts.
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#
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# 1. Remove absolute paths
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# Any file in a list of known suspects that isn't a symlink is assumed to be a linker script.
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# FIXME: test -h is not portable
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# FIXME: probably need to check more files than just these three...
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# Need to use sed instead of just assuming we know what's in libc.so because otherwise alpha breaks
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#
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# 2. Remove lines containing BUG per http://sources.redhat.com/ml/bug-glibc/2003-05/msg00055.html,
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# needed to fix gcc-3.2.3/glibc-2.3.2 targeting arm
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#
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# To make "strip *.so.*" not fail (ptxdist does this), rename to .so_orig rather than .so.orig
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CT_DoLog EXTRA "Fixing C library linker scripts"
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for file in libc.so libpthread.so libgcc_s.so; do
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for dir in lib lib64 usr/lib usr/lib64; do
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if [ -f "${CT_SYSROOT_DIR}/${dir}/${file}" -a ! -L ${CT_SYSROOT_DIR}/$lib/$file ]; then
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mv "${CT_SYSROOT_DIR}/${dir}/${file}" "${CT_SYSROOT_DIR}/${dir}/${file}_orig"
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CT_DoLog DEBUG "Fixing \"${CT_SYS_ROOT_DIR}/${dir}/${file}\""
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sed -i -r -e 's,/usr/lib/,,g;
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s,/usr/lib64/,,g;
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s,/lib/,,g;
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s,/lib64/,,g;
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/BUG in libc.scripts.output-format.sed/d' "${CT_SYSROOT_DIR}/${dir}/${file}_orig"
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fi
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done
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done
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CT_EndStep
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}
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# This function finishes the glibc install
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do_libc_finish() {
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# Finally, build and install glibc programs, now that libeh (if any) is installed
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# Don't do this unless needed, 'cause it causes glibc-2.{1.3,2.2} to fail here with
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# .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__deregister_frame_info'
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# .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__register_frame_info'
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[ "${GLIBC_INSTALL_APPS_LATER}" = "yes" ] || return 0
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CT_DoStep INFO "Finishing C library"
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cd "${CT_BUILD_DIR}/build-libc"
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CT_DoLog EXTRA "Re-building C library"
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make LD=${CT_TARGET}-ld RANLIB=${CT_TARGET}-ranlib 2>&1 |CT_DoLog DEBUG
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CT_DoLog EXTRA "Installing missing C library components"
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# note: should do full install and then fix linker scripts, but this is faster
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for t in bin rootsbin sbin data others; do
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make install_root="${CT_SYSROOT_DIR}" \
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${LIBC_SYSROOT_ARG} \
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install-${t} 2>&1 |CT_DoLog DEBUG
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done
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}
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