unittests/ObjectFile/ELF/TestObjectFileELF.cpp

   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 "Plugins/SymbolVendor/ELF/SymbolVendorELF.h"
  13 #include "lldb/Core/Module.h"
  14 #include "lldb/Core/ModuleSpec.h"
  15 #include "lldb/Core/Section.h"
  16 #include "lldb/Host/HostInfo.h"
  17 #include "unittests/Utility/Helpers/TestUtilities.h"
  18 #include "llvm/Support/FileUtilities.h"
  19 #include "llvm/Support/Path.h"
  20 #include "llvm/Support/Program.h"
  21 #include "llvm/Support/raw_ostream.h"
  22 #include "gtest/gtest.h"
  23
  24 using namespace lldb_private;
  25 using namespace lldb;
  26
  27 class ObjectFileELFTest : public testing::Test {
  28 public:
  29   void SetUp() override {
  30     HostInfo::Initialize();
  31     ObjectFileELF::Initialize();
  32     SymbolVendorELF::Initialize();
  33   }
  34
  35   void TearDown() override {
  36     SymbolVendorELF::Terminate();
  37     ObjectFileELF::Terminate();
  38     HostInfo::Terminate();
  39   }
  40
  41 protected:
  42 };
  43
  44 #define ASSERT_NO_ERROR(x)                                                     \
  45   if (std::error_code ASSERT_NO_ERROR_ec = x) {                                \
  46     llvm::SmallString<128> MessageStorage;                                     \
  47     llvm::raw_svector_ostream Message(MessageStorage);                         \
  48     Message << #x ": did not return errc::success.\n"                          \
  49             << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n"          \
  50             << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n";      \
  51     GTEST_FATAL_FAILURE_(MessageStorage.c_str());                              \
  52   } else {                                                                     \
  53   }
  54
  55 TEST_F(ObjectFileELFTest, SectionsResolveConsistently) {
  56   std::string yaml = GetInputFilePath("sections-resolve-consistently.yaml");
  57   llvm::SmallString<128> obj;
  58   ASSERT_NO_ERROR(llvm::sys::fs::createTemporaryFile(
  59       "sections-resolve-consistently-%%%%%%", "obj", obj));
  60
  61   llvm::FileRemover remover(obj);
  62   const char *args[] = {YAML2OBJ, yaml.c_str(), nullptr};
  63   llvm::StringRef obj_ref = obj;
  64   const llvm::StringRef *redirects[] = {nullptr, &obj_ref, nullptr};
  65   ASSERT_EQ(0, llvm::sys::ExecuteAndWait(YAML2OBJ, args, nullptr, redirects));
  66   uint64_t size;
  67   ASSERT_NO_ERROR(llvm::sys::fs::file_size(obj, size));
  68   ASSERT_GT(size, 0u);
  69
  70   ModuleSpec spec{FileSpec(obj, false)};
  71   spec.GetSymbolFileSpec().SetFile(obj, false);
  72   auto module_sp = std::make_shared<Module>(spec);
  73   SectionList *list = module_sp->GetSectionList();
  74   ASSERT_NE(nullptr, list);
  75
  76   auto bss_sp = list->FindSectionByName(ConstString(".bss"));
  77   ASSERT_NE(nullptr, bss_sp);
  78   auto data_sp = list->FindSectionByName(ConstString(".data"));
  79   ASSERT_NE(nullptr, data_sp);
  80   auto text_sp = list->FindSectionByName(ConstString(".text"));
  81   ASSERT_NE(nullptr, text_sp);
  82
  83   const Symbol *X = module_sp->FindFirstSymbolWithNameAndType(ConstString("X"),
  84                                                               eSymbolTypeAny);
  85   ASSERT_NE(nullptr, X);
  86   EXPECT_EQ(bss_sp, X->GetAddress().GetSection());
  87
  88   const Symbol *Y = module_sp->FindFirstSymbolWithNameAndType(ConstString("Y"),
  89                                                               eSymbolTypeAny);
  90   ASSERT_NE(nullptr, Y);
  91   EXPECT_EQ(data_sp, Y->GetAddress().GetSection());
  92
  93   const Symbol *start = module_sp->FindFirstSymbolWithNameAndType(
  94       ConstString("_start"), eSymbolTypeAny);
  95   ASSERT_NE(nullptr, start);
  96   EXPECT_EQ(text_sp, start->GetAddress().GetSection());
  97 }