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//===-- TestDWARFCallFrameInfo.cpp ------------------------------*- C++ -*-===//
//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Plugins/ObjectFile/ELF/ObjectFileELF.h"
#include "Plugins/Process/Utility/RegisterContext_x86.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/Section.h"
#include "lldb/Host/HostInfo.h"
#include "lldb/Symbol/DWARFCallFrameInfo.h"
#include "lldb/Utility/StreamString.h"
#include "TestingSupport/TestUtilities.h"
#include "llvm/Support/FileUtilities.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Program.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
using namespace lldb_private;
using namespace lldb;
class DWARFCallFrameInfoTest : public testing::Test {
public:
void SetUp() override {
HostInfo::Initialize();
ObjectFileELF::Initialize();
}
void TearDown() override {
ObjectFileELF::Terminate();
HostInfo::Terminate();
}
protected:
void TestBasic(DWARFCallFrameInfo::Type type, llvm::StringRef symbol);
};
#define ASSERT_NO_ERROR(x) \
if (std::error_code ASSERT_NO_ERROR_ec = x) { \
llvm::SmallString<128> MessageStorage; \
llvm::raw_svector_ostream Message(MessageStorage); \
Message << #x ": did not return errc::success.\n" \
<< "error number: " << ASSERT_NO_ERROR_ec.value() << "\n" \
<< "error message: " << ASSERT_NO_ERROR_ec.message() << "\n"; \
GTEST_FATAL_FAILURE_(MessageStorage.c_str()); \
} else { \
}
namespace lldb_private {
static std::ostream &operator<<(std::ostream &OS, const UnwindPlan::Row &row) {
StreamString SS;
row.Dump(SS, nullptr, nullptr, 0);
return OS << SS.GetData();
}
} // namespace lldb_private
static UnwindPlan::Row GetExpectedRow0() {
UnwindPlan::Row row;
row.SetOffset(0);
row.GetCFAValue().SetIsRegisterPlusOffset(dwarf_rsp_x86_64, 8);
row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rip_x86_64, -8, false);
return row;
}
static UnwindPlan::Row GetExpectedRow1() {
UnwindPlan::Row row;
row.SetOffset(1);
row.GetCFAValue().SetIsRegisterPlusOffset(dwarf_rsp_x86_64, 16);
row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rip_x86_64, -8, false);
row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rbp_x86_64, -16, false);
return row;
}
static UnwindPlan::Row GetExpectedRow2() {
UnwindPlan::Row row;
row.SetOffset(4);
row.GetCFAValue().SetIsRegisterPlusOffset(dwarf_rbp_x86_64, 16);
row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rip_x86_64, -8, false);
row.SetRegisterLocationToAtCFAPlusOffset(dwarf_rbp_x86_64, -16, false);
return row;
}
void DWARFCallFrameInfoTest::TestBasic(DWARFCallFrameInfo::Type type,
llvm::StringRef symbol) {
std::string yaml = GetInputFilePath("basic-call-frame-info.yaml");
llvm::SmallString<128> obj;
ASSERT_NO_ERROR(llvm::sys::fs::createTemporaryFile(
"basic-call-frame-info-%%%%%%", "obj", obj));
llvm::FileRemover obj_remover(obj);
const char *args[] = {YAML2OBJ, yaml.c_str(), nullptr};
llvm::StringRef obj_ref = obj;
const llvm::Optional<llvm::StringRef> redirects[] = {llvm::None, obj_ref,
llvm::None};
ASSERT_EQ(0, llvm::sys::ExecuteAndWait(YAML2OBJ, args, nullptr, redirects));
uint64_t size;
ASSERT_NO_ERROR(llvm::sys::fs::file_size(obj, size));
ASSERT_GT(size, 0u);
auto module_sp = std::make_shared<Module>(ModuleSpec(FileSpec(obj, false)));
SectionList *list = module_sp->GetSectionList();
ASSERT_NE(nullptr, list);
auto section_sp = list->FindSectionByType(type == DWARFCallFrameInfo::EH
? eSectionTypeEHFrame
: eSectionTypeDWARFDebugFrame,
false);
ASSERT_NE(nullptr, section_sp);
DWARFCallFrameInfo cfi(*module_sp->GetObjectFile(), section_sp, type);
const Symbol *sym = module_sp->FindFirstSymbolWithNameAndType(
ConstString(symbol), eSymbolTypeAny);
ASSERT_NE(nullptr, sym);
UnwindPlan plan(eRegisterKindGeneric);
ASSERT_TRUE(cfi.GetUnwindPlan(sym->GetAddress(), plan));
ASSERT_EQ(3, plan.GetRowCount());
EXPECT_EQ(GetExpectedRow0(), *plan.GetRowAtIndex(0));
EXPECT_EQ(GetExpectedRow1(), *plan.GetRowAtIndex(1));
EXPECT_EQ(GetExpectedRow2(), *plan.GetRowAtIndex(2));
}
TEST_F(DWARFCallFrameInfoTest, Basic_dwarf3) {
TestBasic(DWARFCallFrameInfo::DWARF, "debug_frame3");
}
TEST_F(DWARFCallFrameInfoTest, Basic_dwarf4) {
TestBasic(DWARFCallFrameInfo::DWARF, "debug_frame4");
}
TEST_F(DWARFCallFrameInfoTest, Basic_eh) {
TestBasic(DWARFCallFrameInfo::EH, "eh_frame");
}
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