1 //===-- TestObjectFileELF.cpp -----------------------------------*- C++ -*-===//
2 //
3 //
4 //                     The LLVM Compiler Infrastructure
5 //
6 // This file is distributed under the University of Illinois Open Source
7 // License. See LICENSE.TXT for details.
8 //
9 //===----------------------------------------------------------------------===//
10 
11 #include "Plugins/ObjectFile/ELF/ObjectFileELF.h"
12 #include "lldb/Core/Module.h"
13 #include "lldb/Core/ModuleSpec.h"
14 #include "lldb/Core/Section.h"
15 #include "lldb/Host/HostInfo.h"
16 #include "llvm/Support/FileUtilities.h"
17 #include "llvm/Support/Path.h"
18 #include "llvm/Support/Program.h"
19 #include "llvm/Support/raw_ostream.h"
20 #include "gtest/gtest.h"
21 
22 #include "Plugins/SymbolVendor/ELF/SymbolVendorELF.h"
23 
24 extern const char *TestMainArgv0;
25 
26 using namespace lldb_private;
27 using namespace lldb;
28 
29 class ObjectFileELFTest : public testing::Test {
30 public:
31   void SetUp() override {
32     HostInfo::Initialize();
33     ObjectFileELF::Initialize();
34     SymbolVendorELF::Initialize();
35 
36     m_inputs_folder = llvm::sys::path::parent_path(TestMainArgv0);
37     llvm::sys::path::append(m_inputs_folder, "Inputs");
38     llvm::sys::fs::make_absolute(m_inputs_folder);
39   }
40 
41   void TearDown() override {
42     SymbolVendorELF::Terminate();
43     ObjectFileELF::Terminate();
44     HostInfo::Terminate();
45   }
46 
47 protected:
48   llvm::SmallString<128> m_inputs_folder;
49 };
50 
51 #define ASSERT_NO_ERROR(x)                                                     \
52   if (std::error_code ASSERT_NO_ERROR_ec = x) {                                \
53     llvm::SmallString<128> MessageStorage;                                     \
54     llvm::raw_svector_ostream Message(MessageStorage);                         \
55     Message << #x ": did not return errc::success.\n"                          \
56             << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n"          \
57             << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n";      \
58     GTEST_FATAL_FAILURE_(MessageStorage.c_str());                              \
59   } else {                                                                     \
60   }
61 
62 TEST_F(ObjectFileELFTest, SectionsResolveConsistently) {
63   llvm::SmallString<128> yaml = m_inputs_folder;
64   llvm::sys::path::append(yaml, "sections-resolve-consistently.yaml");
65   llvm::SmallString<128> obj = m_inputs_folder;
66   ASSERT_NO_ERROR(llvm::sys::fs::createTemporaryFile(
67       "sections-resolve-consistently-%%%%%%", "obj", obj));
68 
69   llvm::FileRemover remover(obj);
70   const char *args[] = {YAML2OBJ, yaml.c_str(), nullptr};
71   llvm::StringRef obj_ref = obj;
72   const llvm::StringRef *redirects[] = {nullptr, &obj_ref, nullptr};
73   ASSERT_EQ(0, llvm::sys::ExecuteAndWait(YAML2OBJ, args, nullptr, redirects));
74   uint64_t size;
75   ASSERT_NO_ERROR(llvm::sys::fs::file_size(obj, size));
76   ASSERT_GT(size, 0u);
77 
78   ModuleSpec spec{FileSpec(obj, false)};
79   spec.GetSymbolFileSpec().SetFile(obj, false);
80   auto module_sp = std::make_shared<Module>(spec);
81   SectionList *list = module_sp->GetSectionList();
82   ASSERT_NE(nullptr, list);
83 
84   auto bss_sp = list->FindSectionByName(ConstString(".bss"));
85   ASSERT_NE(nullptr, bss_sp);
86   auto data_sp = list->FindSectionByName(ConstString(".data"));
87   ASSERT_NE(nullptr, data_sp);
88   auto text_sp = list->FindSectionByName(ConstString(".text"));
89   ASSERT_NE(nullptr, text_sp);
90 
91   const Symbol *X = module_sp->FindFirstSymbolWithNameAndType(ConstString("X"),
92                                                               eSymbolTypeAny);
93   ASSERT_NE(nullptr, X);
94   EXPECT_EQ(bss_sp, X->GetAddress().GetSection());
95 
96   const Symbol *Y = module_sp->FindFirstSymbolWithNameAndType(ConstString("Y"),
97                                                               eSymbolTypeAny);
98   ASSERT_NE(nullptr, Y);
99   EXPECT_EQ(data_sp, Y->GetAddress().GetSection());
100 
101   const Symbol *start = module_sp->FindFirstSymbolWithNameAndType(
102       ConstString("_start"), eSymbolTypeAny);
103   ASSERT_NE(nullptr, start);
104   EXPECT_EQ(text_sp, start->GetAddress().GetSection());
105 }
106