WUMSLoader/source/module/DynamicLinkingHelper.h
2021-09-23 18:38:29 +02:00

65 lines
3.0 KiB
C++

#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 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, std::string name,
const 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;
};