--- /dev/null
+//===-- llvm/System/DynamicLibrary.h - Portable Dynamic Library -*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the sys::DynamicLibrary class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SYSTEM_DYNAMIC_LIBRARY_H
+#define LLVM_SYSTEM_DYNAMIC_LIBRARY_H
+
+#include "llvm/System/Path.h"
+#include <string>
+
+namespace llvm {
+namespace sys {
+
+ /// This class provides a portable interface to dynamic libraries which also
+ /// might be known as shared libraries, shared objects, dynamic shared
+ /// objects, or dynamic link libraries. Regardless of the terminology or the
+ /// operating system interface, this class provides a portable interface that
+ /// allows dynamic libraries to be loaded and and searched for externally
+ /// defined symbols. This is typically used to provide "plug-in" support.
+ /// @since 1.4
+ /// @brief Portable dynamic library abstraction.
+ class DynamicLibrary {
+ /// @name Constructors
+ /// @{
+ public:
+ /// This is the constructor for DynamicLibrary instances. It will open
+ /// the dynamic library specified by the \filename Path.
+ /// @throws std::string indicating why the library couldn't be opened.
+ /// @brief DynamicLibrary constructor
+ DynamicLibrary(const char* filename);
+
+ /// After destruction, the symbols of the library will no longer be
+ /// available to the program. It is important to make sure the lifespan
+ /// of a DynamicLibrary exceeds the lifetime of the pointers returned
+ /// by the GetAddressOfSymbol otherwise the program may walk off into
+ /// uncharted territory.
+ /// @see GetAddressOfSymbol.
+ /// @brief Closes the DynamicLibrary
+ ~DynamicLibrary();
+
+ /// @}
+ /// @name Accessors
+ /// @{
+ public:
+ /// Looks up a \p symbolName in the DynamicLibrary and returns its address
+ /// if it exists. If the symbol does not exist, returns (void*)0.
+ /// @returns the address of the symbol or 0.
+ /// @brief Get the address of a symbol in the DynamicLibrary.
+ void* GetAddressOfSymbol(const char* symbolName);
+
+ /// @brief Convenience function for C++ophiles.
+ void* GetAddressOfSymbol(const std::string& symbolName) {
+ return GetAddressOfSymbol(symbolName.c_str());
+ }
+
+ /// @}
+ /// @name Implementation
+ /// @{
+ protected:
+ void* handle; // Opaque handle for information about the library
+
+ DynamicLibrary(); ///< Do not implement
+ DynamicLibrary(const DynamicLibrary&); ///< Do not implement
+ DynamicLibrary& operator=(const DynamicLibrary&); ///< Do not implement
+ /// @}
+ };
+
+} // End sys namespace
+} // End llvm namespace
+
+#endif // LLVM_SYSTEM_DYNAMIC_LIBRARY_H
--- /dev/null
+//===- AIX/DynamicLibrary.cpp - AIX Dynamic Library -------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the AIX version of DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+// Include the generic unix implementation
+#include "../Unix/DynamicLibrary.cpp"
+
+namespace llvm {
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only AIX specific code
+//=== and must not be generic UNIX code (see ../Unix/Memory.cpp)
+//===----------------------------------------------------------------------===//
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
--- /dev/null
+//===- Cygwin/DynamicLibrary.cpp - Cygwin Dynamic Library -------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Cygwin version of DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+// Include the generic unix implementation
+#include "../Unix/DynamicLibrary.cpp"
+
+namespace llvm {
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only Cygwin specific code
+//=== and must not be generic UNIX code (see ../Unix/Memory.cpp)
+//===----------------------------------------------------------------------===//
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
--- /dev/null
+//===- Darwin/DynamicLibrary.cpp - Darwin Dynamic Library -------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Darwin version of DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+// Include the generic unix implementation
+#include "../Unix/DynamicLibrary.cpp"
+
+namespace llvm {
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only Darwin specific code
+//=== and must not be generic UNIX code (see ../Unix/Memory.cpp)
+//===----------------------------------------------------------------------===//
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
--- /dev/null
+//===-- DynamicLibrary.cpp - Runtime link/load libraries --------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This header file implements the operating system DynamicLibrary concept.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/System/DynamicLibrary.h"
+#include "llvm/Config/dlfcn.h"
+#include <cassert>
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only TRULY operating system
+//=== independent code.
+//===----------------------------------------------------------------------===//
+
+#ifdef HAVE_LTDL_H
+
+namespace llvm {
+
+using namespace sys;
+
+#ifdef HAVE_LT_DLOPEN
+
+DynamicLibrary::DynamicLibrary(const char*filename) : handle(0) {
+ if (0 != lt_dlinit())
+ throw std::string(lt_dlerror());
+
+ handle = lt_dlopen(filename);
+
+ if (handle == 0)
+ handle = lt_dlopenext(filename);
+
+ if (handle == 0)
+ throw std::string("Can't open dynamic library:") + filename;
+}
+
+DynamicLibrary::~DynamicLibrary() {
+ if (handle)
+ lt_dlclose((lt_dlhandle)handle);
+
+ lt_dlexit();
+}
+
+void *DynamicLibrary::GetAddressOfSymbol(const char *symbolName) {
+ assert(handle != 0 && "Invalid DynamicLibrary handle");
+ return lt_dlsym((lt_dlhandle) handle,symbolName);
+}
+
+#else
+DynamicLibrary::DynamicLibrary(const char*filename) : handle(0) {
+ assert(!"Have ltdl.h but not libltdl.a!");
+}
+
+DynamicLibrary::~DynamicLibrary() {
+ assert(!"Have ltdl.h but not libltdl.a!");
+}
+
+void *DynamicLibrary::GetAddressOfSymbol(const char *symbolName) {
+ assert(!"Have ltdl.h but not libltdl.a!");
+ return 0;
+}
+
+#endif // HAVE_DLOPEN
+
+} // namespace llvm
+
+#else // HAVE_LTDL_H
+
+#include "platform/DynamicLibrary.cpp"
+
+#endif
--- /dev/null
+//===- FreeBSD/DynamicLibrary.cpp - FreeBSD Dynamic Library -----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the FreeBSD version of DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+// Include the generic unix implementation
+#include "../Unix/DynamicLibrary.cpp"
+
+namespace llvm {
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only FreeBSD specific code
+//=== and must not be generic UNIX code (see ../Unix/Memory.cpp)
+//===----------------------------------------------------------------------===//
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
--- /dev/null
+//===- Interix/DynamicLibrary.cpp - Interix Dynamic Library -----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Interix version of DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+// Include the generic unix implementation
+#include "../Unix/DynamicLibrary.cpp"
+
+namespace llvm {
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only Interix specific code
+//=== and must not be generic UNIX code (see ../Unix/Memory.cpp)
+//===----------------------------------------------------------------------===//
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
--- /dev/null
+//===- Linux/DynamicLibrary.cpp - Linux Dynamic Library ---------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Linux version of DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+// Include the generic unix implementation
+#include "../Unix/DynamicLibrary.cpp"
+
+namespace llvm {
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only Linux specific code
+//=== and must not be generic UNIX code (see ../Unix/Memory.cpp)
+//===----------------------------------------------------------------------===//
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
--- /dev/null
+//===- SunOS/DynamicLibrary.cpp - SunOS Dynamic Library ---------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the SunOS version of DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+// Include the generic unix implementation
+#include "../Unix/DynamicLibrary.cpp"
+
+namespace llvm {
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only SunOS specific code
+//=== and must not be generic UNIX code (see ../Unix/Memory.cpp)
+//===----------------------------------------------------------------------===//
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
--- /dev/null
+//===- Unix/DynamicLibrary.cpp - Generic UNIX Dynamic Library ---*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the generic UNIX variant of DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+#include "Unix.h"
+
+namespace llvm {
+using namespace sys;
+
+
+DynamicLibrary::DynamicLibrary(const char *filename) {
+#if defined (HAVE_DLOPEN)
+ if ((handle = dlopen (filename, RTLD_NOW | RTLD_GLOBAL)) == 0)
+ throw std::string( dlerror() );
+#else
+ assert (!"Dynamic object linking not implemented for this platform");
+#endif
+}
+
+DynamicLibrary::~DynamicLibrary() {
+ assert(handle != 0 && "Invalid DynamicLibrary handle");
+#if defined (HAVE_DLOPEN)
+ dlclose(handle);
+#else
+ assert (!"Dynamic object linking not implemented for this platform");
+#endif
+}
+
+void *DynamicLibrary::GetAddressOfSymbol(const char *symbolName) {
+ assert(handle != 0 && "Invalid DynamicLibrary handle");
+#if defined(HAVE_DLOPEN)
+ return dlsym (handle, symbolName);
+#else
+ assert (0 && "Dynamic symbol lookup not implemented for this platform");
+#endif
+}
+
+}
--- /dev/null
+//===- Win32/DynamicLibrary.cpp - Win32 DL Implementation -------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file provides the Win32 specific implementation of the DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+#include "Win32.h"
+
+namespace llvm {
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only Win32 specific code
+//=== and must not be UNIX code
+//===----------------------------------------------------------------------===//
+
+DynamicLibrary::DynamicLibrary(const char*filename) : handle(0) {
+ handle = LoadLibrary(filename);
+
+ if (handle == 0) {
+ char Buffer[100];
+ // FIXME: This should use FormatMessage
+ sprintf(Buffer, "Windows error code %d\n", GetLastError());
+ throw std::string(Buffer);
+ }
+}
+
+DynamicLibrary::~DynamicLibrary() {
+ if (handle)
+ FreeLibrary(handle);
+}
+
+void *DynamicLibrary::GetAddressOfSymbol(const char *symbolName) {
+ assert(handle !=0 && "Invalid DynamicLibrary handle");
+ return GetProcAddress(handle, symbolName);
+}
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
--- /dev/null
+//===- Win32/DynamicLibrary.cpp - Win32 DL Implementation -------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Reid Spencer and is distributed under the
+// University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file provides the Win32 specific implementation of the DynamicLibrary
+//
+//===----------------------------------------------------------------------===//
+
+#include "Win32.h"
+
+namespace llvm {
+using namespace sys;
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only Win32 specific code
+//=== and must not be UNIX code
+//===----------------------------------------------------------------------===//
+
+DynamicLibrary::DynamicLibrary(const char*filename) : handle(0) {
+ handle = LoadLibrary(filename);
+
+ if (handle == 0) {
+ char Buffer[100];
+ // FIXME: This should use FormatMessage
+ sprintf(Buffer, "Windows error code %d\n", GetLastError());
+ throw std::string(Buffer);
+ }
+}
+
+DynamicLibrary::~DynamicLibrary() {
+ if (handle)
+ FreeLibrary(handle);
+}
+
+void *DynamicLibrary::GetAddressOfSymbol(const char *symbolName) {
+ assert(handle !=0 && "Invalid DynamicLibrary handle");
+ return GetProcAddress(handle, symbolName);
+}
+
+}
+
+// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
projects / oota-llvm.git / commitdiff