10 Jun
2020
10 Jun
'20
12:54 p.m.
Hi Nanfang,
When I try to build the tutorial and run
ninja
I got the following error.
[1/31] Performing build step for 'hello-app'
ninja: no work to do.
[3/31] Performing configure step for 'poke-module'
...
CMake Warning (dev) in CMakeLists.txt:
No project() command is present. The top-level CMakeLists.txt file must
contain a literal, direct call to the project() command. Add a line of
code such as
project(ProjectName)
near the top of the file, but after cmake_minimum_required().
CMake is pretending there is a "project(Project)" command on the first
line.
This warning is for project developers. Use -Wno-dev to suppress it.
It could be that the 'DeclareLinuxModule' directive is missing in the
CMakeLists.txt file under the 'modules' folder.
Or perhaps, the 'ExternalProject_add' directive is missing for the
'poke' kernel module.
Additionally, there's a bug with the 'DeclareLinuxModule' directive for the
poke module in the tutorial content.
The 'DeclareLinuxModule(poke)' line should be this instead:
DefineLinuxModule(${CMAKE_CURRENT_LIST_DIR}/poke poke-module poke-target KERNEL_DIR
${LINUX_KERNEL_DIR})
There should be a fix out for this pretty soon.
Regards,
Damon