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/Utility/Reproducer.h"
20 #include "lldb/lldb-enumerations.h"
21 #include "lldb/lldb-forward.h"
22 #include "lldb/lldb-private-enumerations.h"
23 #include "lldb/lldb-private.h"
24 #include "llvm/Support/FormatVariadic.h"
25 #include "gtest/gtest.h"
26 
27 using namespace lldb_private;
28 using namespace lldb_private::repro;
29 using namespace lldb;
30 
31 namespace {
32 class ExecutionContextTest : public ::testing::Test {
33 public:
34   void SetUp() override {
35     llvm::cantFail(Reproducer::Initialize(ReproducerMode::Off, llvm::None));
36     FileSystem::Initialize();
37     HostInfo::Initialize();
38     platform_linux::PlatformLinux::Initialize();
39   }
40   void TearDown() override {
41     platform_linux::PlatformLinux::Terminate();
42     HostInfo::Terminate();
43     FileSystem::Terminate();
44     Reproducer::Terminate();
45   }
46 };
47 
48 class DummyProcess : public Process {
49 public:
50   using Process::Process;
51 
52   virtual bool CanDebug(lldb::TargetSP target, bool plugin_specified_by_name) {
53     return true;
54   }
55   virtual Status DoDestroy() { return {}; }
56   virtual void RefreshStateAfterStop() {}
57   virtual size_t DoReadMemory(lldb::addr_t vm_addr, void *buf, size_t size,
58                               Status &error) {
59     return 0;
60   }
61   virtual bool UpdateThreadList(ThreadList &old_thread_list,
62                                 ThreadList &new_thread_list) {
63     return false;
64   }
65   virtual ConstString GetPluginName() { return ConstString("Dummy"); }
66   virtual uint32_t GetPluginVersion() { return 0; }
67 };
68 } // namespace
69 
70 TEST_F(ExecutionContextTest, GetByteOrder) {
71   ExecutionContext exe_ctx(nullptr, nullptr, nullptr);
72   EXPECT_EQ(endian::InlHostByteOrder(), exe_ctx.GetByteOrder());
73 }
74 
75 TEST_F(ExecutionContextTest, GetByteOrderTarget) {
76   ArchSpec arch("powerpc64-pc-linux");
77 
78   Platform::SetHostPlatform(
79       platform_linux::PlatformLinux::CreateInstance(true, &arch));
80 
81   DebuggerSP debugger_sp = Debugger::CreateInstance();
82   ASSERT_TRUE(debugger_sp);
83 
84   TargetSP target_sp;
85   PlatformSP platform_sp;
86   Status error = debugger_sp->GetTargetList().CreateTarget(
87       *debugger_sp, "", arch, eLoadDependentsNo, platform_sp, target_sp);
88   ASSERT_TRUE(target_sp);
89   ASSERT_TRUE(target_sp->GetArchitecture().IsValid());
90   ASSERT_TRUE(platform_sp);
91 
92   ExecutionContext target_ctx(target_sp, false);
93   EXPECT_EQ(target_sp->GetArchitecture().GetByteOrder(),
94             target_ctx.GetByteOrder());
95 }
96 
97 TEST_F(ExecutionContextTest, GetByteOrderProcess) {
98   ArchSpec arch("powerpc64-pc-linux");
99 
100   Platform::SetHostPlatform(
101       platform_linux::PlatformLinux::CreateInstance(true, &arch));
102 
103   DebuggerSP debugger_sp = Debugger::CreateInstance();
104   ASSERT_TRUE(debugger_sp);
105 
106   TargetSP target_sp;
107   PlatformSP platform_sp;
108   Status error = debugger_sp->GetTargetList().CreateTarget(
109       *debugger_sp, "", arch, eLoadDependentsNo, platform_sp, target_sp);
110   ASSERT_TRUE(target_sp);
111   ASSERT_TRUE(target_sp->GetArchitecture().IsValid());
112   ASSERT_TRUE(platform_sp);
113 
114   ListenerSP listener_sp(Listener::MakeListener("dummy"));
115   ProcessSP process_sp = std::make_shared<DummyProcess>(target_sp, listener_sp);
116   ASSERT_TRUE(process_sp);
117 
118   ExecutionContext process_ctx(process_sp);
119   EXPECT_EQ(process_sp->GetByteOrder(), process_ctx.GetByteOrder());
120 }
121