crosstool-ng/scripts/build/debug/300-gdb.sh
Michał Zagórski 71cfd2d094
Some checks failed
CI / crosstool (macos-13) (push) Has been cancelled
CI / crosstool (ubuntu-22.04) (push) Has been cancelled
CI / tarballs (ubuntu-22.04) (push) Has been cancelled
CI / toolchains (push) Has been cancelled
gdb/gdbserver: use -static --static for static build
With gdb15.2 gdb uses libtool for linking, but gdbserver is not.
Should not break #2230 or #2053

Signed-off-by: Michał Zagórski <zagura6+github@gmail.com>
2024-12-16 08:37:33 +13:00

377 lines
14 KiB
Bash

# Build script for the gdb debug facility
do_debug_gdb_get()
{
CT_Fetch GDB
}
do_debug_gdb_extract()
{
CT_ExtractPatch GDB
}
do_debug_gdb_build()
{
if [ "${CT_GDB_CROSS}" = "y" ]; then
local gcc_version p _p
local -a cross_extra_config
CT_DoStep INFO "Installing cross-gdb"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-gdb-cross"
cross_extra_config=( "${CT_GDB_CROSS_EXTRA_CONFIG_ARRAY[@]}" )
if [ "${CT_GDB_CROSS_PYTHON}" = "y" ]; then
if [ -z "${CT_GDB_CROSS_PYTHON_BINARY}" ]; then
if [ "${CT_CANADIAN}" = "y" -o "${CT_CROSS_NATIVE}" = "y" ]; then
CT_Abort "For canadian build, Python wrapper runnable on the build machine must be provided. Set CT_GDB_CROSS_PYTHON_BINARY."
elif [ "${CT_CONFIGURE_has_python}" = "y" ]; then
cross_extra_config+=("--with-python=${python}")
else
CT_Abort "Python support requested in GDB, but Python not found. Set CT_GDB_CROSS_PYTHON_BINARY."
fi
else
cross_extra_config+=("--with-python=${CT_GDB_CROSS_PYTHON_BINARY}")
fi
else
cross_extra_config+=("--with-python=no")
fi
if [ "${CT_GDB_CROSS_SIM}" = "y" ]; then
cross_extra_config+=("--enable-sim")
else
cross_extra_config+=("--disable-sim")
fi
if ${CT_HOST}-gcc --version 2>&1 | grep clang; then
# clang detects the line from gettext's _ macro as format string
# not being a string literal and produces a lot of warnings - which
# ct-ng's logger faithfully relays to user if this happens in the
# error() function. Suppress them.
cross_extra_config+=("--enable-build-warnings=,-Wno-format-nonliteral,-Wno-format-security")
fi
# Target libexpat resides in sysroot and does not have
# any dependencies, so just passing '-lexpat' to gcc is enough.
#
# By default gdb configure looks for expat in '$prefix/lib'
# directory. In our case '$prefix/lib' resolves to '/usr/lib'
# where libexpat for build platform lives, which is
# unacceptable for cross-compiling.
#
# To prevent this '--without-libexpat-prefix' flag must be passed.
# Thus configure falls back to '-lexpat', which is exactly what we want.
#
# NOTE: DO NOT USE --with-libexpat-prefix (until GDB configure is smarter)!!!
# It conflicts with a static build: GDB's configure script will find the shared
# version of expat and will attempt to link that, despite the -static flag.
# The link will fail, and configure will abort with "expat missing or unusable"
# message.
cross_extra_config+=("--with-expat")
cross_extra_config+=("--without-libexpat-prefix")
# ct-ng always builds ncurses in cross mode as a static library.
# Starting from the patchset 20200718 ncurses defines a special macro
# NCURSES_STATIC for a static library. This is critical for mingw host
# platform.
#
# The problem is that the macro must be defined in a user program too,
# not just in ncurses. It won't hurt if we define it here.
do_gdb_backend \
buildtype=cross \
host="${CT_HOST}" \
cflags="${CT_CFLAGS_FOR_HOST} -DNCURSES_STATIC" \
ldflags="${CT_LDFLAGS_FOR_HOST}" \
prefix="${CT_PREFIX_DIR}" \
static="${CT_GDB_CROSS_STATIC}" \
static_libstdcxx="${CT_GDB_CROSS_STATIC}" \
--with-sysroot="${CT_SYSROOT_DIR}" \
"${cross_extra_config[@]}"
if [ "${CT_BUILD_MANUALS}" = "y" ]; then
CT_DoLog EXTRA "Building and installing the cross-GDB manuals"
CT_DoExecLog ALL make ${CT_JOBSFLAGS} pdf html
CT_DoExecLog ALL make install-{pdf,html}-gdb
fi
CT_DoLog EXTRA "Installing '.gdbinit' template"
# See in scripts/build/internals.sh for why we do this
# TBD GCC 3.x and older not supported
if [ -f "${CT_SRC_DIR}/gcc/gcc/BASE-VER" ]; then
gcc_version=$(cat "${CT_SRC_DIR}/gcc/gcc/BASE-VER")
else
gcc_version=$(sed -r -e '/version_string/!d; s/^.+= "([^"]+)".*$/\1/;' \
"${CT_SRC_DIR}/gcc/gcc/version.c" \
)
fi
sed -r \
-e "s:@@PREFIX@@:${CT_PREFIX_DIR}:;" \
-e "s:@@VERSION@@:${gcc_version}:;" \
"${CT_LIB_DIR}/scripts/build/debug/gdbinit.in" \
>"${CT_PREFIX_DIR}/share/gdb/gdbinit"
CT_Popd
CT_EndStep
fi
if [ "${CT_GDB_NATIVE}" = "y" ]; then
local -a native_extra_config
local subdir
CT_DoStep INFO "Installing native gdb"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-gdb-native"
native_extra_config+=("--program-prefix=")
# Starting from GDB 11.x, gmp is needed as a dependency to build full
# gdb. And if target GMP gets built, explicitly point to installed library,
# as otherwise host library might be attempted to be used for target binary
# linkage.
if [ "${CT_GMP_TARGET}" = "y" ]; then
native_extra_config+=("--with-libgmp-prefix=${CT_SYSROOT_DIR}")
fi
# gdbserver gets enabled by default with gdb
# since gdbserver was promoted to top-level
if [ "${CT_GDB_GDBSERVER_TOPLEVEL}" = "y" ]; then
native_extra_config+=("--disable-gdbserver")
fi
# GDB on Mingw depends on PDcurses, not ncurses
if [ "${CT_MINGW32}" != "y" ]; then
native_extra_config+=("--with-curses")
fi
if [ "${CT_GDB_NATIVE_BUILD_IPA_LIB}" = "y" ]; then
native_extra_config+=("--enable-inprocess-agent")
else
native_extra_config+=("--disable-inprocess-agent")
fi
if [ "${CT_COMP_LIBS_ZSTD}}" = "y" ]; then
native_extra_config+=("--with-zstd=${complibs}")
else
native_extra_config+=("--without-zstd")
fi
export ac_cv_func_strncmp_works=yes
# TBD do we need all these?
native_extra_config+=(
--without-uiout
--disable-gdbtk
--without-x
--disable-sim
--without-included-gettext
--without-develop
--sysconfdir=/etc
--localstatedir=/var
)
# Target libexpat resides in sysroot and does not have
# any dependencies, so just passing '-lexpat' to gcc is enough.
#
# By default gdb configure looks for expat in '$prefix/lib'
# directory. In our case '$prefix/lib' resolves to '/usr/lib'
# where libexpat for build platform lives, which is
# unacceptable for cross-compiling.
#
native_extra_config+=("--with-expat=y")
native_extra_config+=("--with-libexpat-prefix=${CT_BUILDTOOLS_PREFIX_DIR}")
# Without specifying libexpat type, configure would look for -lexpat
# and try to link with shared library, set library type explicitly.
if [ "${CT_GDB_NATIVE_STATIC}" = "y" ]; then
native_extra_config+=("--with-libexpat-type=static")
fi
do_gdb_backend \
buildtype=native \
subdir=${subdir} \
host="${CT_TARGET}" \
cflags="${CT_ALL_TARGET_CFLAGS}" \
ldflags="${CT_ALL_TARGET_LDFLAGS}" \
static="${CT_GDB_NATIVE_STATIC}" \
static_libstdcxx="${CT_GDB_NATIVE_STATIC_LIBSTDCXX}" \
prefix=/usr \
destdir="${CT_DEBUGROOT_DIR}" \
"${native_extra_config[@]}"
unset ac_cv_func_strncmp_works
CT_Popd
CT_EndStep # native gdb build
fi
if [ "${CT_GDB_GDBSERVER}" = "y" ]; then
local -a native_extra_config
local subdir
if [ "${CT_GDB_GDBSERVER_TOPLEVEL}" != "y" ]; then
subdir=gdb/gdbserver/
else
native_extra_config+=("--disable-gdb")
fi
CT_DoStep INFO "Installing gdb server"
CT_mkdir_pushd "${CT_BUILD_DIR}/build-gdb-server"
native_extra_config+=("--program-prefix=")
native_extra_config+=("--enable-gdbserver")
if [ "${CT_GDB_NATIVE_BUILD_IPA_LIB}" = "y" ]; then
native_extra_config+=("--enable-inprocess-agent")
else
native_extra_config+=("--disable-inprocess-agent")
fi
export ac_cv_func_strncmp_works=yes
# TBD do we need all these?
native_extra_config+=(
--without-uiout
--disable-gdbtk
--without-x
--disable-sim
--without-included-gettext
--without-develop
--sysconfdir=/etc
--localstatedir=/var
)
do_gdb_backend \
buildtype=native \
subdir=${subdir} \
host="${CT_TARGET}" \
cflags="${CT_ALL_TARGET_CFLAGS}" \
ldflags="${CT_ALL_TARGET_LDFLAGS}" \
static="${CT_GDB_NATIVE_STATIC}" \
static_libstdcxx="${CT_GDB_NATIVE_STATIC_LIBSTDCXX}" \
prefix=/usr \
destdir="${CT_DEBUGROOT_DIR}" \
"${native_extra_config[@]}"
unset ac_cv_func_strncmp_works
CT_Popd
CT_EndStep # gdb server build
fi
}
do_gdb_backend()
{
local host prefix destdir cflags ldflags static buildtype subdir includedir
local -a extra_config
local -a extra_make_flags
for arg in "$@"; do
case "$arg" in
--*)
extra_config+=("${arg}")
;;
*)
eval "${arg// /\\ }"
;;
esac
done
[ -n "${CT_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
# Disable binutils options when building from the binutils-gdb repo.
extra_config+=("--disable-binutils")
extra_config+=("--disable-ld")
extra_config+=("--disable-gas")
case "${CT_THREADS}" in
none) extra_config+=("--disable-threads");;
*) extra_config+=("--enable-threads");;
esac
if [ "${CT_TOOLCHAIN_ENABLE_NLS}" != "y" ]; then
extra_config+=("--disable-nls")
fi
if [ "${static}" = "y" ]; then
ldflags+=" -static"
# There is no static libsource-highlight
extra_config+=("--disable-source-highlight")
fi
if [ "${static_libstdcxx}" = "y" ]; then
ldflags+=" -static-libgcc"
ldflags+=" -static-libstdc++"
# libsource-highlight is a dynamic library that uses exception
# exceptions are handled by libstdc++
# this combination is very buggy, so configure don't use it and abort
extra_config+=("--disable-source-highlight")
fi
# Fix up whitespace. Some older GDB releases (e.g. 6.8a) get confused if there
# are multiple consecutive spaces: sub-configure scripts replace them with a
# single space and then complain that $CC value changed from that in
# the master directory.
cflags=`echo ${cflags}`
ldflags=`echo ${ldflags}`
CT_DoLog EXTRA "Configuring ${buildtype} gdb"
CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
# Run configure/make in the matching subdirectory so that any fixups
# prepared in a given subdirectory apply.
if [ -n "${subdir}" ]; then
CT_mkdir_pushd "${subdir}"
fi
# Use a relative path for include directory if gdb or gdbserver
# is being built and installed for a target. Otherwise headers
# are installed in ${destdir}${CT_HEADERS_DIR} - a concatenation
# of ${destdir} and an absolute path to sysroot's include directory.
# As a result debug-root may contain wrong paths for includes.
if [ -n "${destdir}" ]; then
includedir="/usr/include"
else
includedir=${CT_HEADERS_DIR}
fi
# TBD: is passing CPP/CC/CXX/LD needed? GCC should be determining this automatically from the triplets
CT_DoExecLog CFG \
CPP="${host}-cpp" \
CC="${host}-gcc" \
CXX="${host}-g++" \
LD="${host}-ld" \
CFLAGS="${cflags}" \
CXXFLAGS="${cflags}" \
LDFLAGS="${ldflags}" \
${CONFIG_SHELL} \
"${CT_SRC_DIR}/gdb/${subdir}configure" \
--build=${CT_BUILD} \
--host=${host} \
--target=${CT_TARGET} \
--prefix="${prefix}" \
--with-build-sysroot="${CT_SYSROOT_DIR}" \
--includedir="${includedir}" \
--disable-werror \
"${extra_config[@]}" \
if [ "${static}" = "y" ]; then
if [ "${CT_GDB_CC_LD_LIBTOOL}" = "y" ]; then
# gdb is linked with libtool, but gdbserver is not
# Both linker accept -static --static and create static binaries
extra_make_flags+=("LDFLAGS=${ldflags} -static --static")
else
extra_make_flags+=("LDFLAGS=${ldflags} -static")
fi
CT_DoLog EXTRA "Prepare gdb for static build"
CT_DoExecLog ALL make ${CT_JOBSFLAGS} configure-host
fi
CT_DoLog EXTRA "Building ${buildtype} gdb"
CT_DoExecLog ALL make "${extra_make_flags[@]}" ${CT_JOBSFLAGS}
CT_DoLog EXTRA "Installing ${buildtype} gdb"
CT_DoExecLog ALL make install ${destdir:+DESTDIR="${destdir}"}
if [ -n "${subdir}" ]; then
CT_Popd
fi
}