I’m compiling a rust project, and want to include some static with a value not known at compile time, which will only later be linked into a final executable.
I figured I should be able to create some type of ELF object file which holds the entire linked binary except for my static which is waiting to be linked.
I wrote a main.rsfile which has l:

extern "C" {
    static MY_STATIC: u8;
}

I tried using cargo rustc -- --emit obj=out.o, and it rightfully complains that MY_STATIC is undefined. In generated out.o so I tried linking that to some .o which has MY_STATIC to see what happens, and it seems out.so has a lot if std stuff still unlinked.