Initialization.cpp revision 4e9864870f4a2c15ca8e1c333d92487a87ef0655 
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/Support/ErrorHandling.h>
22#include <llvm/Support/TargetSelect.h>
23
24#include "bcc/Config/Config.h"
25#include "bcc/Support/Log.h"
26
27namespace {
28
29void llvm_error_handler(void *pUserData, const std::string &pMessage,
30                        bool pGenCrashDiag) {
31  ALOGE("%s", pMessage.c_str());
32  ::exit(1);
33}
34
35} // end anonymous namespace
36
37void bcc::init::Initialize() {
38  static bool is_initialized = false;
39
40  if (is_initialized) {
41    return;
42  }
43
44  // Setup error handler for LLVM.
45  llvm::remove_fatal_error_handler();
46  llvm::install_fatal_error_handler(llvm_error_handler, NULL);
47
48#if defined(PROVIDE_ARM_CODEGEN)
49  LLVMInitializeARMAsmPrinter();
50  LLVMInitializeARMAsmParser();
51# if USE_DISASSEMBLER
52  LLVMInitializeARMDisassembler();
53# endif
54  LLVMInitializeARMTargetMC();
55  LLVMInitializeARMTargetInfo();
56  LLVMInitializeARMTarget();
57#endif
58
59#if defined(PROVIDE_MIPS_CODEGEN)
60  LLVMInitializeMipsAsmPrinter();
61  LLVMInitializeMipsAsmParser();
62# if USE_DISASSEMBLER
63  LLVMInitializeMipsDisassembler();
64# endif
65  LLVMInitializeMipsTargetMC();
66  LLVMInitializeMipsTargetInfo();
67  LLVMInitializeMipsTarget();
68#endif
69
70#if defined(PROVIDE_X86_CODEGEN)
71  LLVMInitializeX86AsmPrinter();
72  LLVMInitializeX86AsmParser();
73# if USE_DISASSEMBLER
74  LLVMInitializeX86Disassembler();
75# endif
76  LLVMInitializeX86TargetMC();
77  LLVMInitializeX86TargetInfo();
78  LLVMInitializeX86Target();
79#endif
80
81  is_initialized = true;
82
83  return;
84}
85