95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
#ifndef DYNAMICLINKINGHELPER_H
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#define DYNAMICLINKINGHELPER_H
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#include "common/retain_vars.h"
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#include "dynamic_linking_defines.h"
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#include "utils/logger.h"
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#include <string>
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#include <vector>
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#include "RelocationData.h"
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class DynamicLinkingHelper {
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public:
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static DynamicLinkingHelper *getInstance() {
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if(!instance) {
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instance = new DynamicLinkingHelper();
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}
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return instance;
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}
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static void destroyInstance() {
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if(instance) {
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delete instance;
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instance = NULL;
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}
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}
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/**
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Gets the function entry for a given function name. If the function name is not present in the list, it will be added.
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\param functionName Name of the function
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\return Returns a pointer to the entry which contains the functionName. Null on error or if the list full.
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**/
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dyn_linking_function_t * getOrAddFunctionEntryByName(const char * functionName);
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/**
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Gets the function import entry for a given function name. If the import is not present in the list, it will be added.
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This will return entries for _function_ imports.
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\param importName Name of the function
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\return Returns a pointer to the function import entry which contains the importName. Null on error or if the list full.
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**/
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dyn_linking_import_t * getOrAddFunctionImportByName(const char * importName);
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/**
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Gets the data import entry for a given data name. If the import is not present in the list, it will be added.
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This will return entries for _data_ imports.
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\param importName Name of the data
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\return Returns a pointer to the data import entry which contains the importName. Null on error or if the list full.
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**/
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dyn_linking_import_t * getOrAddDataImportByName(const char * importName);
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/**
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Gets the import entry for a given data name and type. If the import is not present in the list, it will be added.
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This will return entries for _data_ and _function_ imports, depending on the isData parameter.
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\param importName Name of the data
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\param isData Set this to true to return a data import
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\return Returns a pointer to the data import entry which contains the importName. Null on error or if the list full.
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**/
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dyn_linking_import_t * getOrAddImport(const char * importName, bool isData);
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bool addReloationEntry(RelocationData * relocationData);
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bool addReloationEntry(char type, size_t offset, int32_t addend, void *destination, std::string name, ImportRPLInformation * rplInfo);
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bool addReloationEntry(char type, size_t offset, int32_t addend, void *destination, dyn_linking_function_t * functionName, dyn_linking_import_t * importInfo);
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std::vector<dyn_linking_relocation_entry_t *> getAllValidDynamicLinkingRelocations();
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bool fillRelocations(std::vector<dyn_linking_relocation_entry_t *> entries );
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void clearAll();
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protected:
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private:
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DynamicLinkingHelper() {
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}
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~DynamicLinkingHelper() {
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}
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static DynamicLinkingHelper *instance;
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};
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#endif // DYNAMICLINKINGHELPER_H
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