lldb/unittests/Target/StackFrameRecognizerTest.cpp

   1 //===-- StackFrameRecognizerTest.cpp --------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "lldb/Target/StackFrameRecognizer.h"
  10 #include "Plugins/Platform/Linux/PlatformLinux.h"
  11 #include "lldb/Core/Debugger.h"
  12 #include "lldb/Host/FileSystem.h"
  13 #include "lldb/Host/HostInfo.h"
  14 #include "lldb/Utility/Reproducer.h"
  15 #include "lldb/lldb-enumerations.h"
  16 #include "lldb/lldb-forward.h"
  17 #include "lldb/lldb-private-enumerations.h"
  18 #include "lldb/lldb-private.h"
  19 #include "llvm/Support/FormatVariadic.h"
  20 #include "gtest/gtest.h"
  21
  22 using namespace lldb_private;
  23 using namespace lldb_private::repro;
  24 using namespace lldb;
  25
  26 namespace {
  27 class StackFrameRecognizerTest : public ::testing::Test {
  28 public:
  29   void SetUp() override {
  30     llvm::cantFail(Reproducer::Initialize(ReproducerMode::Off, llvm::None));
  31     FileSystem::Initialize();
  32     HostInfo::Initialize();
  33
  34     // Pretend Linux is the host platform.
  35     platform_linux::PlatformLinux::Initialize();
  36     ArchSpec arch("powerpc64-pc-linux");
  37     Platform::SetHostPlatform(
  38         platform_linux::PlatformLinux::CreateInstance(true, &arch));
  39   }
  40
  41   void TearDown() override {
  42     platform_linux::PlatformLinux::Terminate();
  43     HostInfo::Terminate();
  44     FileSystem::Terminate();
  45     Reproducer::Terminate();
  46   }
  47 };
  48
  49 class DummyStackFrameRecognizer : public StackFrameRecognizer {
  50 public:
  51   std::string GetName() override { return "Dummy StackFrame Recognizer"; }
  52 };
  53
  54 void RegisterDummyStackFrameRecognizer(StackFrameRecognizerManager &manager) {
  55   RegularExpressionSP module_regex_sp = nullptr;
  56   RegularExpressionSP symbol_regex_sp(new RegularExpression("boom"));
  57
  58   StackFrameRecognizerSP dummy_recognizer_sp(new DummyStackFrameRecognizer());
  59
  60   manager.AddRecognizer(dummy_recognizer_sp, module_regex_sp, symbol_regex_sp,
  61                         false);
  62 }
  63
  64 } // namespace
  65
  66 TEST_F(StackFrameRecognizerTest, NullModuleRegex) {
  67   DebuggerSP debugger_sp = Debugger::CreateInstance();
  68   ASSERT_TRUE(debugger_sp);
  69
  70   StackFrameRecognizerManager manager;
  71
  72   RegisterDummyStackFrameRecognizer(manager);
  73
  74   bool any_printed = false;
  75   manager.ForEach([&any_printed](uint32_t recognizer_id, std::string name,
  76                                  std::string function,
  77                                  llvm::ArrayRef<ConstString> symbols,
  78                                  bool regexp) { any_printed = true; });
  79
  80   EXPECT_TRUE(any_printed);
  81 }