1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
//===-- PluginLoader.cpp - Implement -load command line option ------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the -load <plugin> command line option handler.
//
//===----------------------------------------------------------------------===//
#define DONT_GET_PLUGIN_LOADER_OPTION
#include "llvm/Support/PluginLoader.h"
#include "llvm/Support/DynamicLibrary.h"
#include "llvm/Support/Mutex.h"
#include "llvm/Support/raw_ostream.h"
#include <vector>
using namespace llvm;
namespace {
struct Plugins {
sys::SmartMutex<true> Lock;
std::vector<std::string> List;
};
Plugins &getPlugins() {
static Plugins P;
return P;
}
} // anonymous namespace
void PluginLoader::operator=(const std::string &Filename) {
auto &P = getPlugins();
sys::SmartScopedLock<true> Lock(P.Lock);
std::string Error;
if (sys::DynamicLibrary::LoadLibraryPermanently(Filename.c_str(), &Error)) {
errs() << "Error opening '" << Filename << "': " << Error
<< "\n -load request ignored.\n";
} else {
P.List.push_back(Filename);
}
}
unsigned PluginLoader::getNumPlugins() {
auto &P = getPlugins();
sys::SmartScopedLock<true> Lock(P.Lock);
return P.List.size();
}
std::string &PluginLoader::getPlugin(unsigned num) {
auto &P = getPlugins();
sys::SmartScopedLock<true> Lock(P.Lock);
assert(num < P.List.size() && "Asking for an out of bounds plugin");
return P.List[num];
}
|
