CMake: Advanced Topics (2024-07-01)¶

Day 1 ¶

Basics ¶

From CMake: Introduction

Cross Development ¶

CMake: Cross Build (including a link to a working toolchain file)
More about toolchains and cross development

Day 2 ¶

Exercise: Build It!¶

Add CMake build to existing source code in https://github.com/jfasch/2024-07-01/tree/main/exercises/straightforward

Dependencies, Dependencies, Properties, …¶

The CMake Language ¶

From The Language

Day 3 ¶

Morning Awakening ¶

Screenplay: Function Wrapping add_library()

External Dependencies ¶

From CMake: Advanced Topics …

Composite	MQTT	Dependencies in our project

Code Generators ¶

Screenplay: Generated Code (add_custom_command())

Wrong way to generate code: generate at CMake run time: ⟶ triggers unnecessary rebuilds everytime a CMakeLists.txt is changed.

# -----------------------------
# THIS IS NOT THE WAY TO DO IT!
# -----------------------------

execute_process(
  COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/config-generator.py
          ${CMAKE_CURRENT_SOURCE_DIR}/2024-07-03.conf
       ${CMAKE_CURRENT_BINARY_DIR}/2024-07-03-do-not-use.cpp
)

add_executable(
  data-logger-deeply-embedded-2024-07-03-do-not-use

  data-logger-deeply-embedded.cpp
  ${CMAKE_CURRENT_BINARY_DIR}/2024-07-03-do-not-use.cpp
)
target_include_directories(data-logger-deeply-embedded-2024-07-03-do-not-use PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
target_link_libraries(data-logger-deeply-embedded-2024-07-03-do-not-use data-logger-lib base-lib)

See https://github.com/jfasch/2024-07-01/blob/main/exercises/1/firmware/CMakeLists.txt

Unit Tests ¶

Running Tests