59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
//===-- PluginLoader.cpp - Implement -load command line option ------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the -load <plugin> command line option handler.
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//
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//===----------------------------------------------------------------------===//
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#define DONT_GET_PLUGIN_LOADER_OPTION
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#include "llvm/Support/PluginLoader.h"
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#include "llvm/Support/DynamicLibrary.h"
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#include "llvm/Support/Mutex.h"
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#include "llvm/Support/raw_ostream.h"
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#include <vector>
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using namespace llvm;
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namespace {
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struct Plugins {
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sys::SmartMutex<true> Lock;
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std::vector<std::string> List;
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};
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Plugins &getPlugins() {
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static Plugins P;
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return P;
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}
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} // anonymous namespace
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void PluginLoader::operator=(const std::string &Filename) {
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auto &P = getPlugins();
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sys::SmartScopedLock<true> Lock(P.Lock);
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std::string Error;
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if (sys::DynamicLibrary::LoadLibraryPermanently(Filename.c_str(), &Error)) {
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errs() << "Error opening '" << Filename << "': " << Error
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<< "\n -load request ignored.\n";
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} else {
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P.List.push_back(Filename);
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}
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}
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unsigned PluginLoader::getNumPlugins() {
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auto &P = getPlugins();
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sys::SmartScopedLock<true> Lock(P.Lock);
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return P.List.size();
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}
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std::string &PluginLoader::getPlugin(unsigned num) {
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auto &P = getPlugins();
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sys::SmartScopedLock<true> Lock(P.Lock);
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assert(num < P.List.size() && "Asking for an out of bounds plugin");
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return P.List[num];
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}
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