There is a problem with the initialization of a structure using symbols generated in the linker command file. We use symbols generated in the linker cmd file using the dot operator. These symbols are used as an initial value for a class/struct with a constructor. In our case we want the difference of two addresses that the linker generates.

When using optimization -o2 or -o3, the compiler generates .cinit entries instead of the constructor call. In those .init-entries it doesn't use the difference of the addresses; instead it uses the first symbol.

When turning off optimization or using lower level of opt than -o2, the constructor calls are generated and the struct is initialized correctly.