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c++linkerg++ldlinker-scripts

Place C++ class and its derivatives in specific section

I have a section setup in my linker script, and I want to place all code for a particular C++ class as well as all other classes that derive from it in that section. Is this possible?

I've tried this but got a warning:

class Test __attribute__ ((section ("ss"), aligned(0x40)));

class Test {
public:
    void Foo(int a) {
        printf("Hello\n");
    }        
};

Warning:

test.cpp:19:7: warning: attribute ignored in declaration of ‘class Test’ [-Wattributes]
 class Test __attribute__ ((section ("ss"), aligned(0x40)));
Solution

  • You have to apply the section attribute to each individual method in the class unfortunately, e.g.:

    class Test {
public:
    __attribute__ ((section ("ss"), aligned(0x40))) void Foo(int a) {
        printf("Hello\n");
    }        
};