I have a CMake script where the final executable is linked with my own linker script:
cmake_minimum_required(VERSION 3.1)
project(test_app)
set(LINKER_SCRIPT "linker.ld")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -T ${LINKER_SCRIPT}")
add_executable(${PROJECT_NAME}.elf
main.cpp
startup.cpp
)
How do I make an executable dependent also on the linker script file (trigger linking if linker.ld
was changed)?
You can add a LINK_DEPENDS property to your executable target, using set_target_properties. Add the following line after your add_executable
command:
set_target_properties(${TARGET_NAME} PROPERTIES LINK_DEPENDS ${LINKER_SCRIPT})
The first argument to set_target_properties
is the target name, i.e. the first argument you passed to add_executable
.
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