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/Support/Initialization.h"
18
19 #include <cstdlib>
20
21 #include <llvm/InitializePasses.h>
22 #include <llvm/PassRegistry.h>
23 #include <llvm/Support/ErrorHandling.h>
24 #include <llvm/Support/TargetSelect.h>
25
26 #include "bcc/Config/Config.h"
27 #include "bcc/Support/Log.h"
28
29 namespace {
30
llvm_error_handler(void * pUserData,const std::string & pMessage,bool pGenCrashDiag)31 void 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
Initialize()39 void 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::initializeIPA(Registry);
62 llvm::initializeTransformUtils(Registry);
63 llvm::initializeInstCombine(Registry);
64 llvm::initializeInstrumentation(Registry);
65 llvm::initializeTarget(Registry);
66 llvm::initializeCodeGenPreparePass(Registry);
67 llvm::initializeAtomicExpandPass(Registry);
68 llvm::initializeRewriteSymbolsPass(Registry);
69
70 is_initialized = true;
71
72 return;
73 }
74