casa-mp-base

ld64 support for slidable static images -- _mh_execute_header

​

<rdar://problem/10280094>

​

--- src/ld/LinkEditClassic.hpp

+++ src/ld/LinkEditClassic.hpp

@@ -356,8 +356,9 @@ void SymbolTableAtom<A>::addGlobal(const ld::Atom* atom, StringPoolAtom* pool)

                entry.set_n_type(N_EXT | N_SECT | N_PEXT);

        }

        else if ( (atom->symbolTableInclusion() == ld::Atom::symbolTableInAndNeverStrip)

-                   && (atom->section().type() == ld::Section::typeMachHeader) ) {

-           // the __mh_execute_header is historical magic and must be an absolute symbol

+                   && (atom->section().type() == ld::Section::typeMachHeader) 

+                   && !_options.positionIndependentExecutable() ) {

+           // the __mh_execute_header is historical magic in non-pie executabls and must be an absolute symbol

            entry.set_n_type(N_EXT | N_ABS);

        }

    }