Configure Qt Creator

Here we use firefly-qt-5.12.2-aarch64 as example, the target platform uses Buildroot system:

The configuration varies slightly depending on the target system, so please read the text carefully, pictures for reference only, do not just copy configuration in the picture

Launch Qt Creator, open Tools -> Options, find Kits page.

• Select Qt Versions

  Click add button on the right, select qmake in the Qt environment installation location.

  qmake：/opt/firefly-qt-5.12.2-aarch64/host/bin/qmake

• Select Compilers

  Click add button on the right to add gcc and g++ compilers.

  If crossbuild-essential-arm64 is installed on host PC, then the compilers are under /usr/bin/.

  If using 3rd-party compilers, just find compilers' installation location.

  If the target uses Buildroot, use the compilers in the Buildroot Qt environment package.

  g++：/opt/firefly-qt-5.12.2-aarch64/host/bin/aarch64-buildroot-linux-gnu-g++

  gcc：/opt/firefly-qt-5.12.2-aarch64/host/bin/aarch64-buildroot-linux-gnu-gcc

For easily debug, configure gdb and devices for online debugging:

• Select Debuggers

  First install gdb-multiarch on host：apt install -y gdb-multiarch

  Check if /usr/bin/gdbserver exist on target. If not, install it: apt install -y gdbserver (Buildroot comes with gdbserver, no need to install)

  Back to host Qt Creator, click add to add gdb

  Select gdb-multiarch ：/usr/bin/gdb-multiarch

• Configure Devices

  Set the IP, username (root) and password (firefly). You can use static IP on target.

  Set the GDB server: /usr/bin/gdbserver

• Configure Kits

  Add previous settings into Kits.

  If target uses Ubuntu, you need to set sysroot.