70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
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/*
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* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef ELF_SYMBOL_LOOKUP_H
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#define ELF_SYMBOL_LOOKUP_H
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#include <runtime_loader.h>
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// values for SymbolLookupInfo::flags
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#define LOOKUP_FLAG_DEFAULT_VERSION 0x01
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uint32 elf_hash(const char* name);
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struct SymbolLookupInfo {
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const char* name;
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int32 type;
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uint32 hash;
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uint32 flags;
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const elf_version_info* version;
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SymbolLookupInfo(const char* name, int32 type, uint32 hash,
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const elf_version_info* version = NULL, uint32 flags = 0)
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:
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name(name),
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type(type),
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hash(hash),
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flags(flags),
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version(version)
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{
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}
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SymbolLookupInfo(const char* name, int32 type,
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const elf_version_info* version = NULL, uint32 flags = 0)
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:
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name(name),
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type(type),
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hash(elf_hash(name)),
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flags(flags),
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version(version)
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{
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}
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};
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void patch_defined_symbol(image_t* image, const char* name,
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void** symbol, int32* type);
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void patch_undefined_symbol(image_t* rootImage, image_t* image,
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const char* name, image_t** foundInImage, void** symbol,
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int32* type);
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Elf32_Sym* find_symbol(image_t* image, const SymbolLookupInfo& lookupInfo);
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status_t find_symbol(image_t* image, const SymbolLookupInfo& lookupInfo,
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void** _location);
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status_t find_symbol_breadth_first(image_t* image,
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const SymbolLookupInfo& lookupInfo, image_t** _foundInImage,
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void** _location);
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Elf32_Sym* find_undefined_symbol_beos(image_t* rootImage, image_t* image,
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const SymbolLookupInfo& lookupInfo, image_t** foundInImage);
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Elf32_Sym* find_undefined_symbol_global(image_t* rootImage, image_t* image,
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const SymbolLookupInfo& lookupInfo, image_t** foundInImage);
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Elf32_Sym* find_undefined_symbol_add_on(image_t* rootImage, image_t* image,
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const SymbolLookupInfo& lookupInfo, image_t** foundInImage);
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#endif // ELF_SYMBOL_LOOKUP_H
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