mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-21 05:43:09 +00:00
6ad7b96903
The native gdb needs the version of libexpat built for the target. On some systems gdb's configure will find the one from the build machine. Use --with-expat= to point at the correct one for the target. Fixes: 2092 Signed-off-by: Chris Packham <judge.packham@gmail.com>
369 lines
13 KiB
Bash
369 lines
13 KiB
Bash
# Build script for the gdb debug facility
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do_debug_gdb_get()
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{
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CT_Fetch GDB
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}
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do_debug_gdb_extract()
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{
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CT_ExtractPatch GDB
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}
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do_debug_gdb_build()
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{
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if [ "${CT_GDB_CROSS}" = "y" ]; then
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local gcc_version p _p
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local -a cross_extra_config
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CT_DoStep INFO "Installing cross-gdb"
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CT_mkdir_pushd "${CT_BUILD_DIR}/build-gdb-cross"
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cross_extra_config=( "${CT_GDB_CROSS_EXTRA_CONFIG_ARRAY[@]}" )
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if [ "${CT_GDB_CROSS_PYTHON}" = "y" ]; then
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if [ -z "${CT_GDB_CROSS_PYTHON_BINARY}" ]; then
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if [ "${CT_CANADIAN}" = "y" -o "${CT_CROSS_NATIVE}" = "y" ]; then
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CT_Abort "For canadian build, Python wrapper runnable on the build machine must be provided. Set CT_GDB_CROSS_PYTHON_BINARY."
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elif [ "${CT_CONFIGURE_has_python}" = "y" ]; then
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cross_extra_config+=("--with-python=${python}")
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else
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CT_Abort "Python support requested in GDB, but Python not found. Set CT_GDB_CROSS_PYTHON_BINARY."
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fi
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else
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cross_extra_config+=("--with-python=${CT_GDB_CROSS_PYTHON_BINARY}")
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fi
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else
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cross_extra_config+=("--with-python=no")
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fi
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if [ "${CT_GDB_CROSS_SIM}" = "y" ]; then
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cross_extra_config+=("--enable-sim")
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else
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cross_extra_config+=("--disable-sim")
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fi
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if ${CT_HOST}-gcc --version 2>&1 | grep clang; then
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# clang detects the line from gettext's _ macro as format string
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# not being a string literal and produces a lot of warnings - which
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# ct-ng's logger faithfully relays to user if this happens in the
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# error() function. Suppress them.
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cross_extra_config+=("--enable-build-warnings=,-Wno-format-nonliteral,-Wno-format-security")
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fi
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# Target libexpat resides in sysroot and does not have
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# any dependencies, so just passing '-lexpat' to gcc is enough.
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#
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# By default gdb configure looks for expat in '$prefix/lib'
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# directory. In our case '$prefix/lib' resolves to '/usr/lib'
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# where libexpat for build platform lives, which is
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# unacceptable for cross-compiling.
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#
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# To prevent this '--without-libexpat-prefix' flag must be passed.
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# Thus configure falls back to '-lexpat', which is exactly what we want.
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#
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# NOTE: DO NOT USE --with-libexpat-prefix (until GDB configure is smarter)!!!
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# It conflicts with a static build: GDB's configure script will find the shared
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# version of expat and will attempt to link that, despite the -static flag.
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# The link will fail, and configure will abort with "expat missing or unusable"
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# message.
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cross_extra_config+=("--with-expat")
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cross_extra_config+=("--without-libexpat-prefix")
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# ct-ng always builds ncurses in cross mode as a static library.
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# Starting from the patchset 20200718 ncurses defines a special macro
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# NCURSES_STATIC for a static library. This is critical for mingw host
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# platform.
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#
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# The problem is that the macro must be defined in a user program too,
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# not just in ncurses. It won't hurt if we define it here.
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do_gdb_backend \
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buildtype=cross \
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host="${CT_HOST}" \
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cflags="${CT_CFLAGS_FOR_HOST} -DNCURSES_STATIC" \
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ldflags="${CT_LDFLAGS_FOR_HOST}" \
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prefix="${CT_PREFIX_DIR}" \
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static="${CT_GDB_CROSS_STATIC}" \
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static_libstdcxx="${CT_GDB_CROSS_STATIC}" \
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--with-sysroot="${CT_SYSROOT_DIR}" \
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"${cross_extra_config[@]}"
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if [ "${CT_BUILD_MANUALS}" = "y" ]; then
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CT_DoLog EXTRA "Building and installing the cross-GDB manuals"
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CT_DoExecLog ALL make ${CT_JOBSFLAGS} pdf html
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CT_DoExecLog ALL make install-{pdf,html}-gdb
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fi
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CT_DoLog EXTRA "Installing '.gdbinit' template"
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# See in scripts/build/internals.sh for why we do this
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# TBD GCC 3.x and older not supported
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if [ -f "${CT_SRC_DIR}/gcc/gcc/BASE-VER" ]; then
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gcc_version=$(cat "${CT_SRC_DIR}/gcc/gcc/BASE-VER")
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else
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gcc_version=$(sed -r -e '/version_string/!d; s/^.+= "([^"]+)".*$/\1/;' \
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"${CT_SRC_DIR}/gcc/gcc/version.c" \
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)
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fi
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sed -r \
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-e "s:@@PREFIX@@:${CT_PREFIX_DIR}:;" \
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-e "s:@@VERSION@@:${gcc_version}:;" \
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"${CT_LIB_DIR}/scripts/build/debug/gdbinit.in" \
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>"${CT_PREFIX_DIR}/share/gdb/gdbinit"
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CT_Popd
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CT_EndStep
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fi
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if [ "${CT_GDB_NATIVE}" = "y" ]; then
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local -a native_extra_config
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local subdir
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CT_DoStep INFO "Installing native gdb"
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CT_mkdir_pushd "${CT_BUILD_DIR}/build-gdb-native"
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native_extra_config+=("--program-prefix=")
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# Starting from GDB 11.x, gmp is needed as a dependency to build full
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# gdb. And if target GMP gets built, explicitly point to installed library,
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# as otherwise host library might be attempted to be used for target binary
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# linkage.
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if [ "${CT_GMP_TARGET}" = "y" ]; then
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native_extra_config+=("--with-libgmp-prefix=${CT_SYSROOT_DIR}")
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fi
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# gdbserver gets enabled by default with gdb
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# since gdbserver was promoted to top-level
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if [ "${CT_GDB_GDBSERVER_TOPLEVEL}" = "y" ]; then
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native_extra_config+=("--disable-gdbserver")
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fi
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# GDB on Mingw depends on PDcurses, not ncurses
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if [ "${CT_MINGW32}" != "y" ]; then
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native_extra_config+=("--with-curses")
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fi
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if [ "${CT_GDB_NATIVE_BUILD_IPA_LIB}" = "y" ]; then
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native_extra_config+=("--enable-inprocess-agent")
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else
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native_extra_config+=("--disable-inprocess-agent")
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fi
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if [ "${CT_COMP_LIBS_ZSTD}}" = "y" ]; then
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native_extra_config+=("--with-zstd=${complibs}")
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else
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native_extra_config+=("--without-zstd")
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fi
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export ac_cv_func_strncmp_works=yes
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# TBD do we need all these?
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native_extra_config+=(
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--without-uiout
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--disable-gdbtk
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--without-x
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--disable-sim
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--without-included-gettext
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--without-develop
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--sysconfdir=/etc
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--localstatedir=/var
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)
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# Target libexpat resides in sysroot and does not have
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# any dependencies, so just passing '-lexpat' to gcc is enough.
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#
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# By default gdb configure looks for expat in '$prefix/lib'
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# directory. In our case '$prefix/lib' resolves to '/usr/lib'
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# where libexpat for build platform lives, which is
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# unacceptable for cross-compiling.
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#
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native_extra_config+=("--with-expat=${CT_BUILDTOOLS_PREFIX_DIR}")
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do_gdb_backend \
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buildtype=native \
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subdir=${subdir} \
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host="${CT_TARGET}" \
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cflags="${CT_ALL_TARGET_CFLAGS}" \
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ldflags="${CT_ALL_TARGET_LDFLAGS}" \
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static="${CT_GDB_NATIVE_STATIC}" \
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static_libstdcxx="${CT_GDB_NATIVE_STATIC_LIBSTDCXX}" \
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prefix=/usr \
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destdir="${CT_DEBUGROOT_DIR}" \
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"${native_extra_config[@]}"
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unset ac_cv_func_strncmp_works
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CT_Popd
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CT_EndStep # native gdb build
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fi
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if [ "${CT_GDB_GDBSERVER}" = "y" ]; then
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local -a native_extra_config
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local subdir
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if [ "${CT_GDB_GDBSERVER_TOPLEVEL}" != "y" ]; then
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subdir=gdb/gdbserver/
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else
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native_extra_config+=("--disable-gdb")
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fi
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CT_DoStep INFO "Installing gdb server"
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CT_mkdir_pushd "${CT_BUILD_DIR}/build-gdb-server"
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native_extra_config+=("--program-prefix=")
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native_extra_config+=("--enable-gdbserver")
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if [ "${CT_GDB_NATIVE_BUILD_IPA_LIB}" = "y" ]; then
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native_extra_config+=("--enable-inprocess-agent")
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else
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native_extra_config+=("--disable-inprocess-agent")
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fi
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export ac_cv_func_strncmp_works=yes
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# TBD do we need all these?
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native_extra_config+=(
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--without-uiout
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--disable-gdbtk
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--without-x
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--disable-sim
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--without-included-gettext
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--without-develop
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--sysconfdir=/etc
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--localstatedir=/var
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)
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do_gdb_backend \
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buildtype=native \
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subdir=${subdir} \
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host="${CT_TARGET}" \
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cflags="${CT_ALL_TARGET_CFLAGS}" \
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ldflags="${CT_ALL_TARGET_LDFLAGS}" \
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static="${CT_GDB_NATIVE_STATIC}" \
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static_libstdcxx="${CT_GDB_NATIVE_STATIC_LIBSTDCXX}" \
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prefix=/usr \
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destdir="${CT_DEBUGROOT_DIR}" \
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"${native_extra_config[@]}"
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unset ac_cv_func_strncmp_works
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CT_Popd
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CT_EndStep # gdb server build
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fi
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}
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do_gdb_backend()
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{
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local host prefix destdir cflags ldflags static buildtype subdir includedir
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local -a extra_config
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local -a extra_make_flags
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for arg in "$@"; do
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case "$arg" in
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--*)
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extra_config+=("${arg}")
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;;
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*)
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eval "${arg// /\\ }"
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;;
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esac
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done
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[ -n "${CT_PKGVERSION}" ] && extra_config+=("--with-pkgversion=${CT_PKGVERSION}")
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[ -n "${CT_TOOLCHAIN_BUGURL}" ] && extra_config+=("--with-bugurl=${CT_TOOLCHAIN_BUGURL}")
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# Disable binutils options when building from the binutils-gdb repo.
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extra_config+=("--disable-binutils")
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extra_config+=("--disable-ld")
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extra_config+=("--disable-gas")
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case "${CT_THREADS}" in
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none) extra_config+=("--disable-threads");;
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*) extra_config+=("--enable-threads");;
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esac
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if [ "${CT_TOOLCHAIN_ENABLE_NLS}" != "y" ]; then
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extra_config+=("--disable-nls")
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fi
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if [ "${static}" = "y" ]; then
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ldflags+=" -static"
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# There is no static libsource-highlight
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extra_config+=("--disable-source-highlight")
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fi
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if [ "${static_libstdcxx}" = "y" ]; then
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ldflags+=" -static-libgcc"
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ldflags+=" -static-libstdc++"
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# libsource-highlight is a dynamic library that uses exception
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# exceptions are handled by libstdc++
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# this combination is very buggy, so configure don't use it and abort
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extra_config+=("--disable-source-highlight")
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fi
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# Fix up whitespace. Some older GDB releases (e.g. 6.8a) get confused if there
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# are multiple consecutive spaces: sub-configure scripts replace them with a
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# single space and then complain that $CC value changed from that in
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# the master directory.
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cflags=`echo ${cflags}`
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ldflags=`echo ${ldflags}`
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CT_DoLog EXTRA "Configuring ${buildtype} gdb"
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CT_DoLog DEBUG "Extra config passed: '${extra_config[*]}'"
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# Run configure/make in the matching subdirectory so that any fixups
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# prepared in a given subdirectory apply.
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if [ -n "${subdir}" ]; then
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CT_mkdir_pushd "${subdir}"
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fi
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# Use a relative path for include directory if gdb or gdbserver
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# is being built and installed for a target. Otherwise headers
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# are installed in ${destdir}${CT_HEADERS_DIR} - a concatenation
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# of ${destdir} and an absolute path to sysroot's include directory.
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# As a result debug-root may contain wrong paths for includes.
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if [ -n "${destdir}" ]; then
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includedir="/usr/include"
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else
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includedir=${CT_HEADERS_DIR}
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fi
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# TBD: is passing CPP/CC/CXX/LD needed? GCC should be determining this automatically from the triplets
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CT_DoExecLog CFG \
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CPP="${host}-cpp" \
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CC="${host}-gcc" \
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CXX="${host}-g++" \
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LD="${host}-ld" \
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CFLAGS="${cflags}" \
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CXXFLAGS="${cflags}" \
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LDFLAGS="${ldflags}" \
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${CONFIG_SHELL} \
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"${CT_SRC_DIR}/gdb/${subdir}configure" \
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--build=${CT_BUILD} \
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--host=${host} \
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--target=${CT_TARGET} \
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--prefix="${prefix}" \
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--with-build-sysroot="${CT_SYSROOT_DIR}" \
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--includedir="${includedir}" \
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--disable-werror \
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"${extra_config[@]}" \
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if [ "${static}" = "y" ]; then
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if [ "${GDB_CC_LD_LIBTOOL}" = "y" ]; then
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extra_make_flags+=("LDFLAGS=${ldflags} -all-static")
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else
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extra_make_flags+=("LDFLAGS=${ldflags} -static")
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fi
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CT_DoLog EXTRA "Prepare gdb for static build"
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CT_DoExecLog ALL make ${CT_JOBSFLAGS} configure-host
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fi
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CT_DoLog EXTRA "Building ${buildtype} gdb"
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CT_DoExecLog ALL make "${extra_make_flags[@]}" ${CT_JOBSFLAGS}
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CT_DoLog EXTRA "Installing ${buildtype} gdb"
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CT_DoExecLog ALL make install ${destdir:+DESTDIR="${destdir}"}
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if [ -n "${subdir}" ]; then
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CT_Popd
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fi
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}
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