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90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/**
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* Defines the module structures.
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*
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* When defining a new ABI, the
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*/
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/**
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* The symbol table for a module. This structure references all of the
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* Objective-C symbols defined for a module, allowing the runtime to find and
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* register them.
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*/
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struct objc_symbol_table_abi_8
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{
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/**
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* The number of selectors referenced in this module.
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*/
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unsigned long selector_count;
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/**
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* An array of selectors used in this compilation unit. SEL is a pointer
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* type and this points to the first element in an array of selectors.
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*/
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SEL selectors;
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/**
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* The number of classes defined in this module.
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*/
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unsigned short class_count;
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/**
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* The number of categories defined in this module.
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*/
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unsigned short category_count;
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/**
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* A null-terminated array of pointers to symbols defined in this module.
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* This contains class_count pointers to class structures, category_count
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* pointers to category structures, and then zero or more pointers to
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* static object instances.
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*
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* Current compilers only use this for constant strings. The runtime
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* permits other types.
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*/
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void *definitions[1];
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};
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/**
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* The module structure is passed to the __objc_exec_class function by a
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* constructor function when the module is loaded.
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*
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* When defining a new ABI version, the first two fields in this structure must
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* be retained.
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*/
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struct objc_module_abi_8
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{
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/**
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* The version of the ABI used by this module. This is checked against the
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* list of ABIs that the runtime supports, and the list of incompatible
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* ABIs.
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*/
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unsigned long version;
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/**
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* The size of the module. This is used for sanity checking, to ensure
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* that the compiler and runtime's idea of the module size match.
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*/
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unsigned long size;
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/**
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* The full path name of the source for this module. Not currently used
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* for anything, could be used for debugging in theory, but duplicates
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* information available from DWARF data, so probably won't.
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*/
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const char *name;
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/**
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* A pointer to the symbol table for this compilation unit.
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*/
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struct objc_symbol_table_abi_8 *symbol_table;
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};
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/**
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* List of static instances of a named class provided in this module.
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*/
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struct objc_static_instance_list
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{
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/**
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* The name of the class. The isa pointer of all of the instances will be
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* set to the class with this name.
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*/
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char *class_name;
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/**
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* NULL-terminated array of statically-allocated instances.
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*/
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id instances[1];
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};
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