lldb/unittests/Target/ExecutionContextTest.cpp

   1 //===-- ExecutionContextTest.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/ExecutionContext.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/Target/Platform.h"
  15 #include "lldb/Target/Process.h"
  16 #include "lldb/Target/Target.h"
  17 #include "lldb/Utility/ArchSpec.h"
  18 #include "lldb/Utility/Endian.h"
  19 #include "lldb/lldb-enumerations.h"
  20 #include "lldb/lldb-forward.h"
  21 #include "lldb/lldb-private-enumerations.h"
  22 #include "lldb/lldb-private.h"
  23 #include "llvm/Support/FormatVariadic.h"
  24 #include "gtest/gtest.h"
  25
  26 using namespace lldb_private;
  27 using namespace lldb_private::repro;
  28 using namespace lldb;
  29
  30 namespace {
  31 class ExecutionContextTest : public ::testing::Test {
  32 public:
  33   void SetUp() override {
  34     FileSystem::Initialize();
  35     HostInfo::Initialize();
  36     platform_linux::PlatformLinux::Initialize();
  37   }
  38   void TearDown() override {
  39     platform_linux::PlatformLinux::Terminate();
  40     HostInfo::Terminate();
  41     FileSystem::Terminate();
  42   }
  43 };
  44
  45 class DummyProcess : public Process {
  46 public:
  47   DummyProcess(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp)
  48       : Process(target_sp, listener_sp) {}
  49
  50   bool CanDebug(lldb::TargetSP target, bool plugin_specified_by_name) override {
  51     return true;
  52   }
  53   Status DoDestroy() override { return {}; }
  54   void RefreshStateAfterStop() override {}
  55   size_t DoReadMemory(lldb::addr_t vm_addr, void *buf, size_t size,
  56                       Status &error) override {
  57     return 0;
  58   }
  59   bool DoUpdateThreadList(ThreadList &old_thread_list,
  60                           ThreadList &new_thread_list) override {
  61     return false;
  62   }
  63   llvm::StringRef GetPluginName() override { return "Dummy"; }
  64 };
  65 } // namespace
  66
  67 TEST_F(ExecutionContextTest, GetByteOrder) {
  68   ExecutionContext exe_ctx(nullptr, nullptr, nullptr);
  69   EXPECT_EQ(endian::InlHostByteOrder(), exe_ctx.GetByteOrder());
  70 }
  71
  72 TEST_F(ExecutionContextTest, GetByteOrderTarget) {
  73   ArchSpec arch("powerpc64-pc-linux");
  74
  75   Platform::SetHostPlatform(
  76       platform_linux::PlatformLinux::CreateInstance(true, &arch));
  77
  78   DebuggerSP debugger_sp = Debugger::CreateInstance();
  79   ASSERT_TRUE(debugger_sp);
  80
  81   TargetSP target_sp;
  82   PlatformSP platform_sp;
  83   Status error = debugger_sp->GetTargetList().CreateTarget(
  84       *debugger_sp, "", arch, eLoadDependentsNo, platform_sp, target_sp);
  85   ASSERT_TRUE(target_sp);
  86   ASSERT_TRUE(target_sp->GetArchitecture().IsValid());
  87   ASSERT_TRUE(platform_sp);
  88
  89   ExecutionContext target_ctx(target_sp, false);
  90   EXPECT_EQ(target_sp->GetArchitecture().GetByteOrder(),
  91             target_ctx.GetByteOrder());
  92 }
  93
  94 TEST_F(ExecutionContextTest, GetByteOrderProcess) {
  95   ArchSpec arch("powerpc64-pc-linux");
  96
  97   Platform::SetHostPlatform(
  98       platform_linux::PlatformLinux::CreateInstance(true, &arch));
  99
 100   DebuggerSP debugger_sp = Debugger::CreateInstance();
 101   ASSERT_TRUE(debugger_sp);
 102
 103   TargetSP target_sp;
 104   PlatformSP platform_sp;
 105   Status error = debugger_sp->GetTargetList().CreateTarget(
 106       *debugger_sp, "", arch, eLoadDependentsNo, platform_sp, target_sp);
 107   ASSERT_TRUE(target_sp);
 108   ASSERT_TRUE(target_sp->GetArchitecture().IsValid());
 109   ASSERT_TRUE(platform_sp);
 110
 111   ListenerSP listener_sp(Listener::MakeListener("dummy"));
 112   ProcessSP process_sp = std::make_shared<DummyProcess>(target_sp, listener_sp);
 113   ASSERT_TRUE(process_sp);
 114
 115   ExecutionContext process_ctx(process_sp);
 116   EXPECT_EQ(process_sp->GetByteOrder(), process_ctx.GetByteOrder());
 117 }