Function getObjcCategoriesFromData

lldb_commands/ds.py:794–837

(section, outputCount=0)

    return script

def getObjcCategoriesFromData(section, outputCount=0):
    target = getTarget()
    ptrsize = getType("void*").GetByteSize()
    sz = section.GetByteSize() / ptrsize
    addr = section.GetLoadAddress(target)
    script = r'''
struct ds_category_t {
    const char *name;
    Class /* classref_t */ cls;
    void */* struct method_list_t  */ *instanceMethods;
    void */* struct method_list_t  */ *classMethods;
    void */* struct protocol_list_t  */ *protocols;
    void */* struct property_list_t  */ *instanceProperties;
};

struct ds_ret_category {
    char *name;
    char *className;
};
'''
    
    script += "int dssize = {};\nstruct ds_ret_category classNames[{}];\nstruct ds_category_t **categoryPointer = (struct ds_category_t**){};".format(sz, sz,  addr)
    script += r'''
memset(&classNames, 0, sizeof(classNames));
for (int i = 0; i < dssize; i++) {
    classNames[i].name = (char*)(categoryPointer[i]->name);
    classNames[i].className = (char*)(class_getName(categoryPointer[i]->cls));
}
classNames''&#x27;
    indeces = []
    stringList = []
    descriptions = []
    # lldb.debugger.HandleCommand('exp -l objc++ -O -g -- ' + script)
    # return (indeces, stringList)
    val = target.EvaluateExpression(script, genExpressionOptions(False, True, True))
    for i in  range(val.GetNumChildren()):
        x = val.GetChildAtIndex(i)
        # x.GetChildAtIndex(0) # category name
        # x.GetChildAtIndex(1) # class name
        indeces.append(i * ptrsize)
        stringList.append(x.GetChildAtIndex(1).summary.strip('\"'))
        descriptions.append("(" + x.GetChildAtIndex(0).summary.strip('\"') + ")")

    return (indeces, stringList, descriptions)

def getLazyPointersFromData(data, section, outputCount=0):
    script = generateLazyPointerScriptWithOptions(section)