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Add in some methods for use by the JIT. LoadLibraryPermanently brings the

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library into the address space permanently. SearchForAddressOfSymbol looks
in all previously permanently loaded libraries and any currently open
libraries for a symbol, instead of just one library like GetAddressOfSymbol


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18354 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-11-29 13:27:56 +00:00
parent a564845f83
commit b0b0ea07bb
1 changed files with 25 additions and 0 deletions
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25
include/llvm/System/DynamicLibrary.h
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@ -56,6 +56,31 @@ namespace sys {
/// @brief Closes the DynamicLibrary
~DynamicLibrary();
/// @}
/// @name Functions
/// @{
public:
/// This function allows a library to be loaded without instantiating a
/// DynamicLibrary object. Consequently, it is marked as being permanent
/// and will only be unloaded when the program terminates.
/// @throws std::string on error.
/// @brief Open a dynamic library permanently.
static void LoadLibraryPermanently(const char* filename);
/// This function will search through all previously loaded dynamic
/// libraries for the symbol \p symbolName. If it is found, the addressof
/// that symbol is returned. If not, null is returned. Note that this will
/// search permanently loaded libraries (LoadLibraryPermanently) as well
/// as ephemerally loaded libraries (constructors).
/// @throws std::string on error.
/// @brief Search through libraries for address of a symbol
static void* SearchForAddressOfSymbol(const char* symbolName);
/// @brief Convenience function for C++ophiles.
static void* SearchForAddressOfSymbol(const std::string& symbolName) {
return SearchForAddressOfSymbol(symbolName.c_str());
}
/// @}
/// @name Accessors
/// @{