1/*
2 * Copyright 2012, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "bcc/Initialization.h"
18
19#include "Log.h"
20#include "bcc/Config.h"
21
22#include <cstdlib>
23
24#include <llvm/InitializePasses.h>
25#include <llvm/PassRegistry.h>
26#include <llvm/Support/ErrorHandling.h>
27#include <llvm/Support/TargetSelect.h>
28
29namespace {
30
31void llvm_error_handler(void *pUserData, const std::string &pMessage,
32                        bool pGenCrashDiag) {
33  ALOGE("bcc: Internal Error - %s", pMessage.c_str());
34  ::exit(1);
35}
36
37} // end anonymous namespace
38
39void bcc::init::Initialize() {
40  static bool is_initialized = false;
41
42  if (is_initialized) {
43    return;
44  }
45
46  // Setup error handler for LLVM.
47  llvm::remove_fatal_error_handler();
48  llvm::install_fatal_error_handler(llvm_error_handler, nullptr);
49
50
51  llvm::InitializeAllTargets();
52  llvm::InitializeAllTargetMCs();
53  llvm::InitializeAllAsmPrinters();
54
55  llvm::PassRegistry &Registry = *llvm::PassRegistry::getPassRegistry();
56  llvm::initializeCore(Registry);
57  llvm::initializeScalarOpts(Registry);
58  llvm::initializeVectorization(Registry);
59  llvm::initializeIPO(Registry);
60  llvm::initializeAnalysis(Registry);
61  llvm::initializeTransformUtils(Registry);
62  llvm::initializeInstCombine(Registry);
63  llvm::initializeInstrumentation(Registry);
64  llvm::initializeTarget(Registry);
65  llvm::initializeCodeGenPreparePass(Registry);
66  llvm::initializeAtomicExpandPass(Registry);
67  llvm::initializeRewriteSymbolsPass(Registry);
68
69  is_initialized = true;
70
71  return;
72}
73