I use a cross-compiled Qt setup on a CentOS host. Developing Qt applications and executing them remotely on the Raspberry Pi works fine. But I got the following error when I try to debug the application:
I use the standard GDB from the official Raspberry Pi toolchain (tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-gdb).
So what is wrong? Why does the GDB needs Python scripting when I use C++?
I usually build GDB from source, so you can configure it to include Python support:
First some dependencies:
yum install -y texinfo gcc gcc-c++ make python3-devel wget
Then build and install GDB itself:
target=arm-linux-gnueabihf
version=9.1
# Download and extract
cd /tmp
[ -e gdb-$version.tar.xz ] || wget https://ftp.gnu.org/gnu/gdb/gdb-$version.tar.xz
rm -rf gdb-$version
tar xf gdb-$version.tar.xz
mkdir -p gdb-$version/build
cd gdb-$version/build
# Get the Python executable and library directory
[ -z "${PYTHON}" ] && export PYTHON=python3
PYTHON_LIBDIR=$("${PYTHON}" -c \
"import sysconfig; print(sysconfig.get_config_var('LIBDIR'))")
# Configure GDB
../configure \
--prefix="$HOME/.local" \
--target=$target \
--with-python="${PYTHON}" \
LDFLAGS="-L${PYTHON_LIBDIR}"
# Build and install GDB
make -j$(nproc)
make -C gdb install
GDB will be installed in ~/.local/bin, so add it to your path if you haven't already.
FYI, I had the same problem with a fresh Qt install on a fresh debian install.
When I ran
sudo apt-get install gdb
...I noticed that gdb-minimal was removed and the full gdb was installed.
That fixed the python problem and Qt Creator runs gdb with no problems.
