crosstool-ng/scripts/build/binutils/binutils.sh
Alexey Brodkin 57f5909285 binutils: Disable glob for better portability
Since glibc 2.27 glob interface was changed [1]  and so
"glob" & "glob64" symbols require glibc 2.27+.

For us that means if we build Binutils on a machine with glibc 2.27+
produced binaries won't be any longer usable on machines with older
glibc.

As an example [2]: build on Ubuntu 18.04 (with glibc 2.27) and try to run
on CentOS 7.x (with glibc 2.17), you'll see this:
---------------------->8-------------------
ldd ld
ld: /lib64/libc.so.6: version `GLIBC_2.27' not found (required by ld)
---------------------->8-------------------

Now given glob is not really used by Binutils itself (only needed by GDB)
and we build Binutils & GDB separately let's make at least Binutils
more portable.

In theory we may even try to do the same hack for GDB forcing it to use
imported glob implementation. But since GDB is now built strictly by C++
compiler we'll get waaay to many incompatibilities due to multiple changes
of C++ ABI in between GCC 7.5 of Ubuntu 18.04 and GCC 4.8.5 of CentOS 7.x,
so there's no point to even try.

[1] https://sourceware.org/git/?p=glibc.git;a=commit;h=ccf970c7a77e86f4f5ef8ecc5e637114b1c0136a
[2] https://github.com/zephyrproject-rtos/sdk-ng/issues/280

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2020-10-14 23:10:47 +03:00

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# This file adds functions to build binutils
# Copyright 2007 Yann E. MORIN
# Licensed under the GPL v2. See COPYING in the root of this package
# Download binutils
do_binutils_get() {
CT_Fetch BINUTILS
if [ -n "${CT_ARCH_BINFMT_FLAT}" ]; then
CT_Fetch ELF2FLT
fi
}
# Extract binutils
do_binutils_extract() {
CT_ExtractPatch BINUTILS
if [ -n "${CT_ARCH_BINFMT_FLAT}" ]; then
CT_ExtractPatch ELF2FLT
fi
}
# Build binutils for build -> target
do_binutils_for_build() {
local -a binutils_opts
case "${CT_TOOLCHAIN_TYPE}" in
native|cross) return 0;;
esac
CT_DoStep INFO "Installing binutils for build"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-binutils-build-${CT_BUILD}"
binutils_opts+=( "host=${CT_BUILD}" )
binutils_opts+=( "prefix=${CT_BUILDTOOLS_PREFIX_DIR}" )
binutils_opts+=( "cflags=${CT_CFLAGS_FOR_BUILD}" )
binutils_opts+=( "ldflags=${CT_LDFLAGS_FOR_BUILD}" )
do_binutils_backend "${binutils_opts[@]}"
CT_Popd
if [ -n "${CT_ARCH_BINFMT_FLAT}" ]; then
# We re-use binutils' options, plus our owns
binutils_opts+=( "binutils_src=${CT_SRC_DIR}/binutils" )
binutils_opts+=( "binutils_bld=${CT_BUILD_DIR}/build-binutils-build-${CT_BUILD}" )
CT_mkdir_pushd "${CT_BUILD_DIR}/build-elf2flt-build-${CT_BUILD}"
do_elf2flt_backend "${binutils_opts[@]}"
CT_Popd
fi
CT_EndStep
}
# Build binutils for host -> target
do_binutils_for_host() {
local -a binutils_opts
CT_DoStep INFO "Installing binutils for host"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-binutils-host-${CT_HOST}"
binutils_opts+=( "host=${CT_HOST}" )
binutils_opts+=( "prefix=${CT_PREFIX_DIR}" )
binutils_opts+=( "static_build=${CT_STATIC_TOOLCHAIN}" )
binutils_opts+=( "cflags=${CT_CFLAGS_FOR_HOST}" )
binutils_opts+=( "ldflags=${CT_LDFLAGS_FOR_HOST}" )
binutils_opts+=( "build_manuals=${CT_BUILD_MANUALS}" )
do_binutils_backend "${binutils_opts[@]}"
CT_Popd
if [ -n "${CT_ARCH_BINFMT_FLAT}" ]; then
# We re-use binutils' options, plus our owns
binutils_opts+=( "binutils_src=${CT_SRC_DIR}/binutils" )
binutils_opts+=( "binutils_bld=${CT_BUILD_DIR}/build-binutils-host-${CT_HOST}" )
CT_mkdir_pushd "${CT_BUILD_DIR}/build-elf2flt-host-${CT_HOST}"
do_elf2flt_backend "${binutils_opts[@]}"
CT_Popd
fi
# Make those new tools available to the core C compilers to come.
# Note: some components want the ${TARGET}-{ar,as,ld,ranlib,strip} commands
# as well. Create that.
# Don't do it for canadian or cross-native, because the binutils
# are not executable on the build machine.
case "${CT_TOOLCHAIN_TYPE}" in
cross|native)
mkdir -p "${CT_BUILDTOOLS_PREFIX_DIR}/bin"
CT_SymlinkTools "${CT_BUILDTOOLS_PREFIX_DIR}/bin" \
"${CT_PREFIX_DIR}/bin" \
"${CT_TARGET}"
CT_DoExecLog ALL mkdir -p "${CT_BUILDTOOLS_PREFIX_DIR}/${CT_TARGET}"
CT_DoExecLog ALL ln -sv "${CT_PREFIX_DIR}/${CT_TARGET}/bin" \
"${CT_BUILDTOOLS_PREFIX_DIR}/${CT_TARGET}/bin"
;;
*) ;;
esac
CT_EndStep
}
# Build binutils for X -> target
# Parameter : description : type : default
# host : machine to run on : tuple : (none)
# prefix : prefix to install into : dir : (none)
# static_build : build statcially : bool : no
# cflags : cflags to use : string : (empty)
# ldflags : ldflags to use : string : (empty)
# build_manuals : whether to build manuals : bool : no
do_binutils_backend() {
local host
local prefix
local static_build
local cflags
local ldflags
local build_manuals=no
local -a extra_config
local -a extra_make_flags
local -a manuals_for
local -a manuals_install
local arg
for arg in "$@"; do
eval "${arg// /\\ }"
done
CT_DoLog EXTRA "Configuring binutils"
if [ "${CT_BINUTILS_HAS_GOLD}" = "y" ]; then
case "${CT_BINUTILS_LINKERS_LIST}" in
ld)
extra_config+=( --enable-ld=yes --enable-gold=no )
;;
gold)
extra_config+=( --enable-ld=no --enable-gold=yes )
;;
ld,gold)
extra_config+=( --enable-ld=default --enable-gold=yes )
;;
gold,ld)
extra_config+=( --enable-ld=yes --enable-gold=default )
;;
esac
if [ "${CT_BINUTILS_GOLD_THREADS}" = "y" ]; then
extra_config+=( --enable-threads )
fi
fi
if [ "${CT_BINUTILS_PLUGINS}" = "y" ]; then
extra_config+=( --enable-plugins )
fi
if [ "${CT_BINUTILS_RELRO}" = "y" ]; then
extra_config+=( --enable-relro )
elif [ "${CT_BINUTILS_RELRO}" != "m" ]; then
extra_config+=( --disable-relro )
fi
if [ "${CT_BINUTILS_DETERMINISTIC_ARCHIVES}" = "y" ]; then
extra_config+=( --enable-deterministic-archives )
fi
if [ "${CT_BINUTILS_HAS_PKGVERSION_BUGURL}" = "y" ]; then
[ -n "${CT_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
fi
if [ "${CT_MULTILIB}" = "y" ]; then
extra_config+=("--enable-multilib")
else
extra_config+=("--disable-multilib")
fi
# Disable gdb when building from the binutils-gdb repository.
extra_config+=("--disable-sim")
extra_config+=("--disable-gdb")
[ "${CT_TOOLCHAIN_ENABLE_NLS}" != "y" ] && extra_config+=("--disable-nls")
# Disable usage of glob for higher compatibility.
# Not strictly needed for anything but GDB anyways.
export ac_cv_func_glob=no
CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
CT_DoExecLog CFG \
CC_FOR_BUILD="${CT_BUILD}-gcc" \
CFLAGS_FOR_BUILD="${CT_CFLAGS_FOR_BUILD}" \
CXXFLAGS_FOR_BUILD="${CT_CFLAGS_FOR_BUILD}" \
LDFLAGS_FOR_BUILD="${CT_LDFLAGS_FOR_BUILD}" \
CFLAGS="${cflags}" \
CXXFLAGS="${cflags}" \
LDFLAGS="${ldflags}" \
${CONFIG_SHELL} \
"${CT_SRC_DIR}/binutils/configure" \
--build=${CT_BUILD} \
--host=${host} \
--target=${CT_TARGET} \
--prefix=${prefix} \
--disable-werror \
"${extra_config[@]}" \
${CT_ARCH_WITH_FLOAT} \
${CT_BINUTILS_SYSROOT_ARG} \
"${CT_BINUTILS_EXTRA_CONFIG_ARRAY[@]}"
if [ "${static_build}" = "y" ]; then
extra_make_flags+=("LDFLAGS=${ldflags} -all-static")
CT_DoLog EXTRA "Prepare binutils for static build"
CT_DoExecLog ALL make ${CT_JOBSFLAGS} configure-host
fi
CT_DoLog EXTRA "Building binutils"
CT_DoExecLog ALL make "${extra_make_flags[@]}" ${CT_JOBSFLAGS}
CT_DoLog EXTRA "Installing binutils"
CT_DoExecLog ALL make install
if [ "${CT_BINUTILS_PLUGINS}" = "y" ]; then
# Create a directory for plugins such as LTO (to be installed by
# their providers later)
CT_DoExecLog ALL mkdir -p "${CT_PREFIX_DIR}/lib/bfd-plugins"
fi
if [ "${build_manuals}" = "y" ]; then
CT_DoLog EXTRA "Building and installing the binutils manuals"
manuals_for=( gas binutils ld gprof )
if [ "${CT_BINUTILS_LINKER_GOLD}" = "y" ]; then
manuals_for+=( gold )
fi
manuals_install=( "${manuals_for[@]/#/install-pdf-}" )
manuals_install+=( "${manuals_for[@]/#/install-html-}" )
CT_DoExecLog ALL make ${CT_JOBSFLAGS} pdf html
CT_DoExecLog ALL make "${manuals_install[@]}"
fi
# Install the wrapper if needed
if [ "${CT_BINUTILS_LD_WRAPPER}" = "y" ]; then
CT_DoLog EXTRA "Installing ld wrapper"
rm -f "${prefix}/bin/${CT_TARGET}-ld"
rm -f "${prefix}/${CT_TARGET}/bin/ld"
sed -r -e "s/@@DEFAULT_LD@@/${CT_BINUTILS_LINKER_DEFAULT}/" \
"${CT_LIB_DIR}/packages/binutils/binutils-ld.in" \
>"${prefix}/bin/${CT_TARGET}-ld"
chmod a+x "${prefix}/bin/${CT_TARGET}-ld"
cp -a "${prefix}/bin/${CT_TARGET}-ld" \
"${prefix}/${CT_TARGET}/bin/ld"
# If needed, force using ld.bfd during the toolchain build.
# Note that
if [ "${CT_BINUTILS_FORCE_LD_BFD_DEFAULT}" = "y" ]; then
CT_EnvModify export CTNG_LD_IS bfd
fi
fi
}
# Build elf2flt for X -> target
# Parameter : description : type : default
# host : machine to run on : tuple : (none)
# prefix : prefix to install into : dir : (none)
# static_build : build statcially : bool : no
# cflags : cflags to use : string : (empty)
# ldflags : ldflags to use : string : (empty)
# binutils_src : source dir of binutils : dir : (none)
# binutils_bld : build dir of binutils : dir : (none)
# build_manuals : whether to build manuals : bool : no
do_elf2flt_backend() {
local host
local prefix
local static_build
local cflags
local ldflags
local binutils_bld
local binutils_src
local build_manuals
local arg
for arg in "$@"; do
eval "${arg// /\\ }"
done
CT_DoLog EXTRA "Configuring elf2flt"
CT_DoExecLog CFG \
CFLAGS="${cflags}" \
LDFLAGS="${ldflags}" \
${CONFIG_SHELL} \
"${CT_SRC_DIR}/elf2flt/configure" \
--build=${CT_BUILD} \
--host=${host} \
--target=${CT_TARGET} \
--prefix=${prefix} \
--with-bfd-include-dir=${binutils_bld}/bfd \
--with-binutils-include-dir=${binutils_src}/include \
--with-libbfd=${binutils_bld}/bfd/libbfd.a \
--with-libiberty=${binutils_bld}/libiberty/libiberty.a \
--disable-werror \
${elf2flt_opts} \
"${CT_ELF2FLT_EXTRA_CONFIG_ARRAY[@]}"
CT_DoLog EXTRA "Building elf2flt"
CT_DoExecLog ALL make ${CT_JOBSFLAGS} CPU=${CT_ARCH}
CT_DoLog EXTRA "Installing elf2flt"
CT_DoExecLog ALL make install
}
# Now on for the target libraries
do_binutils_for_target() {
local -a extra_config
local -a targets
local -a build_targets
local -a install_targets
local t
[ "${CT_BINUTILS_FOR_TARGET_IBERTY}" = "y" ] && targets+=("libiberty")
[ "${CT_BINUTILS_FOR_TARGET_BFD}" = "y" ] && targets+=("bfd")
for t in "${targets[@]}"; do
build_targets+=("all-${t}")
install_targets+=("install-${t}")
done
if [ "${#targets[@]}" -ne 0 ]; then
CT_DoStep INFO "Installing binutils for target"
mkdir -p "${CT_BUILD_DIR}/build-binutils-for-target"
CT_Pushd "${CT_BUILD_DIR}/build-binutils-for-target"
CT_DoLog EXTRA "Configuring binutils for target"
if [ "${CT_BINUTILS_HAS_PKGVERSION_BUGURL}" = "y" ]; then
[ -n "${CT_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
fi
if [ "${CT_MULTILIB}" = "y" ]; then
extra_config+=("--enable-multilib")
else
extra_config+=("--disable-multilib")
fi
if [ "${CT_BINUTILS_FOR_TARGET_IBERTY}" = "y" ]; then
extra_config+=("--enable-install-libiberty")
fi
[ "${CT_TOOLCHAIN_ENABLE_NLS}" != "y" ] && extra_config+=("--disable-nls")
CT_DoExecLog CFG \
${CONFIG_SHELL} \
"${CT_SRC_DIR}/binutils/configure" \
--build=${CT_BUILD} \
--host=${CT_TARGET} \
--target=${CT_TARGET} \
--prefix=/usr \
--disable-werror \
--enable-shared \
--enable-static \
"${extra_config[@]}" \
${CT_ARCH_WITH_FLOAT} \
"${CT_BINUTILS_EXTRA_CONFIG_ARRAY[@]}"
CT_DoLog EXTRA "Building binutils' libraries (${targets[*]}) for target"
CT_DoExecLog ALL make ${CT_JOBSFLAGS} "${build_targets[@]}"
CT_DoLog EXTRA "Installing binutils' libraries (${targets[*]}) for target"
CT_DoExecLog ALL make DESTDIR="${CT_SYSROOT_DIR}" "${install_targets[@]}"
CT_Popd
CT_EndStep
fi
}