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0de02a6ba9
library (shared library/shared object) whose symbols can be looked up dynamically. Used for plug-ins. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17940 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
//===- Unix/DynamicLibrary.cpp - Generic UNIX Dynamic Library ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Reid Spencer and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the generic UNIX variant of DynamicLibrary
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//
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//===----------------------------------------------------------------------===//
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#include "Unix.h"
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namespace llvm {
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using namespace sys;
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DynamicLibrary::DynamicLibrary(const char *filename) {
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#if defined (HAVE_DLOPEN)
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if ((handle = dlopen (filename, RTLD_NOW | RTLD_GLOBAL)) == 0)
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throw std::string( dlerror() );
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#else
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assert (!"Dynamic object linking not implemented for this platform");
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#endif
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}
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DynamicLibrary::~DynamicLibrary() {
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assert(handle != 0 && "Invalid DynamicLibrary handle");
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#if defined (HAVE_DLOPEN)
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dlclose(handle);
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#else
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assert (!"Dynamic object linking not implemented for this platform");
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#endif
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}
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void *DynamicLibrary::GetAddressOfSymbol(const char *symbolName) {
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assert(handle != 0 && "Invalid DynamicLibrary handle");
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#if defined(HAVE_DLOPEN)
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return dlsym (handle, symbolName);
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#else
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assert (0 && "Dynamic symbol lookup not implemented for this platform");
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#endif
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}
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}
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