WUMSLoader/source/module/DynamicLinkingHelper.h

#pragma once

#include <wums.h>
#include "utils/logger.h"
#include <string>
#include <vector>
#include "RelocationData.h"

class DynamicLinkingHelper {
public:
    /**
        Gets the function entry for a given function name. If the function name is not present in the list, it will be added.

        \param functionName Name of the function
        \return Returns a pointer to the entry which contains the functionName. Null on error or if the list full.
    **/
    static dyn_linking_function_t *getOrAddFunctionEntryByName(dyn_linking_relocation_data_t *data, const char *functionName);

    /**
        Gets the function import entry for a given function name. If the import is not present in the list, it will be added.
        This will return entries for _function_ imports.

        \param importName Name of the function
        \return Returns a pointer to the function import entry which contains the importName. Null on error or if the list full.
    **/
    static dyn_linking_import_t *getOrAddFunctionImportByName(dyn_linking_relocation_data_t *data, const char *importName);


    /**
        Gets the data import entry for a given data name. If the import is not present in the list, it will be added.
        This will return entries for _data_ imports.

        \param importName Name of the data
        \return Returns a pointer to the data import entry which contains the importName. Null on error or if the list full.
    **/
    static dyn_linking_import_t *getOrAddDataImportByName(dyn_linking_relocation_data_t *data, const char *importName);


    /**
        Gets the import entry for a given data name and type. If the import is not present in the list, it will be added.
        This will return entries for _data_ and _function_ imports, depending on the isData parameter.

        \param importName Name of the data
        \param isData Set this to true to return a data import

        \return Returns a pointer to the data import entry which contains the importName. Null on error or if the list full.
    **/
    static dyn_linking_import_t *getOrAddImport(dyn_linking_relocation_data_t *data, const char *importName, bool isData);

    static bool addRelocationEntry(dyn_linking_relocation_data_t *linking_data, dyn_linking_relocation_entry_t *linking_entries, uint32_t linking_entry_length, const std::shared_ptr<RelocationData> &relocationData);

    static bool addReloationEntry(dyn_linking_relocation_data_t *linking_data, dyn_linking_relocation_entry_t *linking_entries, uint32_t linking_entry_length, char type, size_t offset, int32_t addend,
                                  void *destination, const std::string& name,
                                  const std::shared_ptr<ImportRPLInformation> &rplInfo);

    static bool
    addRelocationEntry(dyn_linking_relocation_entry_t *linking_entries, uint32_t linking_entry_length, char type, size_t offset, int32_t addend, void *destination,
                       dyn_linking_function_t *functionName, dyn_linking_import_t *importInfo);

private:
    DynamicLinkingHelper() = default;

    ~DynamicLinkingHelper() = default;
};