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699 lines
26 KiB
C++
699 lines
26 KiB
C++
//===- llvm/unittest/CodeGen/DIEHashTest.cpp ------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "../lib/CodeGen/AsmPrinter/DIEHash.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/BinaryFormat/Dwarf.h"
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#include "llvm/CodeGen/DIE.h"
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#include "llvm/CodeGen/DwarfStringPoolEntry.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/Format.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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// Test fixture
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class DIEHashTest : public testing::Test {
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public:
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BumpPtrAllocator Alloc;
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private:
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StringMap<DwarfStringPoolEntry> Pool;
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public:
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DIEString getString(StringRef S) {
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DwarfStringPoolEntry Entry = {nullptr, 1, 1};
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return DIEString(DwarfStringPoolEntryRef(
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*Pool.insert(std::make_pair(S, Entry)).first, Entry.isIndexed()));
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}
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};
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TEST_F(DIEHashTest, Data1) {
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DIEHash Hash;
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DIE &Die = *DIE::get(Alloc, dwarf::DW_TAG_base_type);
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DIEInteger Size(4);
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Die.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Size);
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uint64_t MD5Res = Hash.computeTypeSignature(Die);
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ASSERT_EQ(0x1AFE116E83701108ULL, MD5Res);
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}
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// struct {};
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TEST_F(DIEHashTest, TrivialType) {
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DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEInteger One(1);
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Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
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// Line and file number are ignored.
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Unnamed.addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
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Unnamed.addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, One);
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uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
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// The exact same hash GCC produces for this DIE.
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ASSERT_EQ(0x715305ce6cfd9ad1ULL, MD5Res);
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}
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// struct foo { };
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TEST_F(DIEHashTest, NamedType) {
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DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEInteger One(1);
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DIEString FooStr = getString("foo");
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Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
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Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
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uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
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// The exact same hash GCC produces for this DIE.
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ASSERT_EQ(0xd566dbd2ca5265ffULL, MD5Res);
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}
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// namespace space { struct foo { }; }
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TEST_F(DIEHashTest, NamespacedType) {
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DIE &CU = *DIE::get(Alloc, dwarf::DW_TAG_compile_unit);
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auto Space = DIE::get(Alloc, dwarf::DW_TAG_namespace);
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DIEInteger One(1);
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DIEString SpaceStr = getString("space");
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Space->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, SpaceStr);
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// DW_AT_declaration is ignored.
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Space->addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
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One);
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// sibling?
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auto Foo = DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEString FooStr = getString("foo");
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Foo->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
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Foo->addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
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DIE &N = *Foo;
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Space->addChild(std::move(Foo));
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CU.addChild(std::move(Space));
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uint64_t MD5Res = DIEHash().computeTypeSignature(N);
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// The exact same hash GCC produces for this DIE.
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ASSERT_EQ(0x7b80381fd17f1e33ULL, MD5Res);
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}
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// struct { int member; };
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TEST_F(DIEHashTest, TypeWithMember) {
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DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEInteger Four(4);
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Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Four);
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DIE &Int = *DIE::get(Alloc, dwarf::DW_TAG_base_type);
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DIEString IntStr = getString("int");
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Int.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, IntStr);
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Int.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Four);
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DIEInteger Five(5);
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Int.addValue(Alloc, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, Five);
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DIEEntry IntRef(Int);
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auto Member = DIE::get(Alloc, dwarf::DW_TAG_member);
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DIEString MemberStr = getString("member");
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Member->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemberStr);
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DIEInteger Zero(0);
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Member->addValue(Alloc, dwarf::DW_AT_data_member_location,
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dwarf::DW_FORM_data1, Zero);
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Member->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IntRef);
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Unnamed.addChild(std::move(Member));
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uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
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ASSERT_EQ(0x5646aa436b7e07c6ULL, MD5Res);
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}
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// struct foo { int mem1, mem2; };
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TEST_F(DIEHashTest, ReusedType) {
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DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEInteger Eight(8);
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Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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DIEInteger Four(4);
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DIE &Int = *DIE::get(Alloc, dwarf::DW_TAG_base_type);
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DIEString IntStr = getString("int");
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Int.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, IntStr);
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Int.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Four);
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DIEInteger Five(5);
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Int.addValue(Alloc, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, Five);
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DIEEntry IntRef(Int);
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auto Mem1 = DIE::get(Alloc, dwarf::DW_TAG_member);
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DIEString Mem1Str = getString("mem1");
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Mem1->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, Mem1Str);
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DIEInteger Zero(0);
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Mem1->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
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Zero);
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Mem1->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IntRef);
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Unnamed.addChild(std::move(Mem1));
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auto Mem2 = DIE::get(Alloc, dwarf::DW_TAG_member);
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DIEString Mem2Str = getString("mem2");
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Mem2->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, Mem2Str);
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Mem2->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
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Four);
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Mem2->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IntRef);
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Unnamed.addChild(std::move(Mem2));
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uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
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ASSERT_EQ(0x3a7dc3ed7b76b2f8ULL, MD5Res);
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}
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// struct foo { static foo f; };
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TEST_F(DIEHashTest, RecursiveType) {
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DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEInteger One(1);
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Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
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DIEString FooStr = getString("foo");
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Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
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auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
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DIEString MemStr = getString("mem");
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Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
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DIEEntry FooRef(Foo);
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Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooRef);
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// DW_AT_external and DW_AT_declaration are ignored anyway, so skip them.
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Foo.addChild(std::move(Mem));
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uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
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ASSERT_EQ(0x73d8b25aef227b06ULL, MD5Res);
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}
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// struct foo { foo *mem; };
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TEST_F(DIEHashTest, Pointer) {
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DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEInteger Eight(8);
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Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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DIEString FooStr = getString("foo");
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Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
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auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
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DIEString MemStr = getString("mem");
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Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
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DIEInteger Zero(0);
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Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
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Zero);
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DIE &FooPtr = *DIE::get(Alloc, dwarf::DW_TAG_pointer_type);
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FooPtr.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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DIEEntry FooRef(Foo);
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FooPtr.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooRef);
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DIEEntry FooPtrRef(FooPtr);
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Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooPtrRef);
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Foo.addChild(std::move(Mem));
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uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
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ASSERT_EQ(0x74ea73862e8708d2ULL, MD5Res);
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}
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// struct foo { foo &mem; };
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TEST_F(DIEHashTest, Reference) {
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DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEInteger Eight(8);
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Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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DIEString FooStr = getString("foo");
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Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
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auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
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DIEString MemStr = getString("mem");
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Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
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DIEInteger Zero(0);
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Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
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Zero);
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DIE &FooRef = *DIE::get(Alloc, dwarf::DW_TAG_reference_type);
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FooRef.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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DIEEntry FooEntry(Foo);
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FooRef.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooEntry);
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DIE &FooRefConst = *DIE::get(Alloc, dwarf::DW_TAG_const_type);
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DIEEntry FooRefRef(FooRef);
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FooRefConst.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
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FooRefRef);
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DIEEntry FooRefConstRef(FooRefConst);
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Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooRefConstRef);
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Foo.addChild(std::move(Mem));
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uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
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ASSERT_EQ(0xa0b15f467ad4525bULL, MD5Res);
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}
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// struct foo { foo &&mem; };
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TEST_F(DIEHashTest, RValueReference) {
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DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEInteger Eight(8);
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Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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DIEString FooStr = getString("foo");
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Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
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auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
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DIEString MemStr = getString("mem");
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Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
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DIEInteger Zero(0);
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Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
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Zero);
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DIE &FooRef = *DIE::get(Alloc, dwarf::DW_TAG_rvalue_reference_type);
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FooRef.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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DIEEntry FooEntry(Foo);
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FooRef.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooEntry);
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DIE &FooRefConst = *DIE::get(Alloc, dwarf::DW_TAG_const_type);
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DIEEntry FooRefRef(FooRef);
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FooRefConst.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
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FooRefRef);
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DIEEntry FooRefConstRef(FooRefConst);
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Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooRefConstRef);
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Foo.addChild(std::move(Mem));
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uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
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ASSERT_EQ(0xad211c8c3b31e57ULL, MD5Res);
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}
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// struct foo { foo foo::*mem; };
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TEST_F(DIEHashTest, PtrToMember) {
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DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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DIEInteger Eight(8);
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Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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DIEString FooStr = getString("foo");
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Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
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auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
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DIEString MemStr = getString("mem");
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Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
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DIEInteger Zero(0);
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Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
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Zero);
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DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
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DIEEntry FooEntry(Foo);
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PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FooEntry);
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PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4,
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FooEntry);
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DIEEntry PtrToFooMemRef(PtrToFooMem);
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Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, PtrToFooMemRef);
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Foo.addChild(std::move(Mem));
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uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
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ASSERT_EQ(0x852e0c9ff7c04ebULL, MD5Res);
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}
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// Check that the hash for a pointer-to-member matches regardless of whether the
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// pointed-to type is a declaration or a definition.
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//
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// struct bar; // { };
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// struct foo { bar foo::*mem; };
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TEST_F(DIEHashTest, PtrToMemberDeclDefMatch) {
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DIEInteger Zero(0);
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DIEInteger One(1);
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DIEInteger Eight(8);
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DIEString FooStr = getString("foo");
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DIEString BarStr = getString("bar");
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DIEString MemStr = getString("mem");
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uint64_t MD5ResDecl;
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{
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DIE &Bar = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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Bar.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, BarStr);
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Bar.addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
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One);
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DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
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auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
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Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
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Mem->addValue(Alloc, dwarf::DW_AT_data_member_location,
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dwarf::DW_FORM_data1, Zero);
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DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
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DIEEntry BarEntry(Bar);
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PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
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BarEntry);
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DIEEntry FooEntry(Foo);
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PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type,
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dwarf::DW_FORM_ref4, FooEntry);
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DIEEntry PtrToFooMemRef(PtrToFooMem);
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Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
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PtrToFooMemRef);
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Foo.addChild(std::move(Mem));
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MD5ResDecl = DIEHash().computeTypeSignature(Foo);
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}
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uint64_t MD5ResDef;
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{
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DIE &Bar = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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Bar.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, BarStr);
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Bar.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
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DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
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Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
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Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
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auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
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Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
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Mem->addValue(Alloc, dwarf::DW_AT_data_member_location,
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dwarf::DW_FORM_data1, Zero);
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DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
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DIEEntry BarEntry(Bar);
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PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
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BarEntry);
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DIEEntry FooEntry(Foo);
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PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type,
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dwarf::DW_FORM_ref4, FooEntry);
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DIEEntry PtrToFooMemRef(PtrToFooMem);
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Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
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PtrToFooMemRef);
|
|
|
|
Foo.addChild(std::move(Mem));
|
|
|
|
MD5ResDef = DIEHash().computeTypeSignature(Foo);
|
|
}
|
|
ASSERT_EQ(MD5ResDef, MD5ResDecl);
|
|
}
|
|
|
|
// Check that the hash for a pointer-to-member matches regardless of whether the
|
|
// pointed-to type is a declaration or a definition.
|
|
//
|
|
// struct bar; // { };
|
|
// struct foo { bar bar::*mem; };
|
|
TEST_F(DIEHashTest, PtrToMemberDeclDefMisMatch) {
|
|
DIEInteger Zero(0);
|
|
DIEInteger One(1);
|
|
DIEInteger Eight(8);
|
|
DIEString FooStr = getString("foo");
|
|
DIEString BarStr = getString("bar");
|
|
DIEString MemStr = getString("mem");
|
|
uint64_t MD5ResDecl;
|
|
{
|
|
DIE &Bar = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
Bar.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, BarStr);
|
|
Bar.addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
|
|
One);
|
|
|
|
DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
|
|
Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
|
|
|
|
auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
|
|
Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
|
|
Mem->addValue(Alloc, dwarf::DW_AT_data_member_location,
|
|
dwarf::DW_FORM_data1, Zero);
|
|
|
|
DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
|
|
DIEEntry BarEntry(Bar);
|
|
PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
|
|
BarEntry);
|
|
PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type,
|
|
dwarf::DW_FORM_ref4, BarEntry);
|
|
|
|
DIEEntry PtrToFooMemRef(PtrToFooMem);
|
|
Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
|
|
PtrToFooMemRef);
|
|
|
|
Foo.addChild(std::move(Mem));
|
|
|
|
MD5ResDecl = DIEHash().computeTypeSignature(Foo);
|
|
}
|
|
uint64_t MD5ResDef;
|
|
{
|
|
DIE &Bar = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
Bar.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, BarStr);
|
|
Bar.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
|
|
|
|
DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
|
|
Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
|
|
|
|
auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
|
|
Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
|
|
Mem->addValue(Alloc, dwarf::DW_AT_data_member_location,
|
|
dwarf::DW_FORM_data1, Zero);
|
|
|
|
DIE &PtrToFooMem = *DIE::get(Alloc, dwarf::DW_TAG_ptr_to_member_type);
|
|
DIEEntry BarEntry(Bar);
|
|
PtrToFooMem.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
|
|
BarEntry);
|
|
PtrToFooMem.addValue(Alloc, dwarf::DW_AT_containing_type,
|
|
dwarf::DW_FORM_ref4, BarEntry);
|
|
|
|
DIEEntry PtrToFooMemRef(PtrToFooMem);
|
|
Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
|
|
PtrToFooMemRef);
|
|
|
|
Foo.addChild(std::move(Mem));
|
|
|
|
MD5ResDef = DIEHash().computeTypeSignature(Foo);
|
|
}
|
|
// FIXME: This seems to be a bug in the DWARF type hashing specification that
|
|
// only uses the brief name hashing for types referenced via DW_AT_type. In
|
|
// this case the type is referenced via DW_AT_containing_type and full hashing
|
|
// causes a hash to differ when the containing type is a declaration in one TU
|
|
// and a definition in another.
|
|
ASSERT_NE(MD5ResDef, MD5ResDecl);
|
|
}
|
|
|
|
// struct { } a;
|
|
// struct foo { decltype(a) mem; };
|
|
TEST_F(DIEHashTest, RefUnnamedType) {
|
|
DIEInteger Zero(0);
|
|
DIEInteger One(1);
|
|
DIEInteger Eight(8);
|
|
DIEString FooStr = getString("foo");
|
|
DIEString MemStr = getString("mem");
|
|
|
|
DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
|
|
|
|
DIE &Foo = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
Foo.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Eight);
|
|
Foo.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
|
|
|
|
auto Mem = DIE::get(Alloc, dwarf::DW_TAG_member);
|
|
Mem->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, MemStr);
|
|
Mem->addValue(Alloc, dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1,
|
|
Zero);
|
|
|
|
DIE &UnnamedPtr = *DIE::get(Alloc, dwarf::DW_TAG_pointer_type);
|
|
UnnamedPtr.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1,
|
|
Eight);
|
|
DIEEntry UnnamedRef(Unnamed);
|
|
UnnamedPtr.addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4,
|
|
UnnamedRef);
|
|
|
|
DIEEntry UnnamedPtrRef(UnnamedPtr);
|
|
Mem->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, UnnamedPtrRef);
|
|
|
|
Foo.addChild(std::move(Mem));
|
|
|
|
uint64_t MD5Res = DIEHash().computeTypeSignature(Foo);
|
|
|
|
ASSERT_EQ(0x954e026f01c02529ULL, MD5Res);
|
|
}
|
|
|
|
// struct { struct foo { }; };
|
|
TEST_F(DIEHashTest, NestedType) {
|
|
DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
DIEInteger One(1);
|
|
Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
|
|
|
|
auto Foo = DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
DIEString FooStr = getString("foo");
|
|
Foo->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FooStr);
|
|
Foo->addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
|
|
|
|
Unnamed.addChild(std::move(Foo));
|
|
|
|
uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
|
|
|
|
// The exact same hash GCC produces for this DIE.
|
|
ASSERT_EQ(0xde8a3b7b43807f4aULL, MD5Res);
|
|
}
|
|
|
|
// struct { static void func(); };
|
|
TEST_F(DIEHashTest, MemberFunc) {
|
|
DIE &Unnamed = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
DIEInteger One(1);
|
|
Unnamed.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
|
|
|
|
auto Func = DIE::get(Alloc, dwarf::DW_TAG_subprogram);
|
|
DIEString FuncStr = getString("func");
|
|
Func->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FuncStr);
|
|
|
|
Unnamed.addChild(std::move(Func));
|
|
|
|
uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed);
|
|
|
|
// The exact same hash GCC produces for this DIE.
|
|
ASSERT_EQ(0xd36a1b6dfb604ba0ULL, MD5Res);
|
|
}
|
|
|
|
// struct A {
|
|
// static void func();
|
|
// };
|
|
TEST_F(DIEHashTest, MemberFuncFlag) {
|
|
DIE &A = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
DIEInteger One(1);
|
|
DIEString AStr = getString("A");
|
|
A.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, AStr);
|
|
A.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
|
|
A.addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
|
|
A.addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, One);
|
|
|
|
auto Func = DIE::get(Alloc, dwarf::DW_TAG_subprogram);
|
|
DIEString FuncStr = getString("func");
|
|
DIEString FuncLinkage = getString("_ZN1A4funcEv");
|
|
DIEInteger Two(2);
|
|
Func->addValue(Alloc, dwarf::DW_AT_external, dwarf::DW_FORM_flag_present,
|
|
One);
|
|
Func->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FuncStr);
|
|
Func->addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
|
|
Func->addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, Two);
|
|
Func->addValue(Alloc, dwarf::DW_AT_linkage_name, dwarf::DW_FORM_strp,
|
|
FuncLinkage);
|
|
Func->addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
|
|
One);
|
|
|
|
A.addChild(std::move(Func));
|
|
|
|
uint64_t MD5Res = DIEHash().computeTypeSignature(A);
|
|
|
|
// The exact same hash GCC produces for this DIE.
|
|
ASSERT_EQ(0x8f78211ddce3df10ULL, MD5Res);
|
|
}
|
|
|
|
// Derived from:
|
|
// struct A {
|
|
// const static int PI = -3;
|
|
// };
|
|
// A a;
|
|
TEST_F(DIEHashTest, MemberSdata) {
|
|
DIE &A = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
DIEInteger One(1);
|
|
DIEString AStr = getString("A");
|
|
A.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, AStr);
|
|
A.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
|
|
A.addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
|
|
A.addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, One);
|
|
|
|
DIEInteger Four(4);
|
|
DIEInteger Five(5);
|
|
DIEString FStr = getString("int");
|
|
DIE &IntTyDIE = *DIE::get(Alloc, dwarf::DW_TAG_base_type);
|
|
IntTyDIE.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, Four);
|
|
IntTyDIE.addValue(Alloc, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, Five);
|
|
IntTyDIE.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FStr);
|
|
|
|
DIEEntry IntTy(IntTyDIE);
|
|
auto PITyDIE = DIE::get(Alloc, dwarf::DW_TAG_const_type);
|
|
PITyDIE->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, IntTy);
|
|
|
|
DIEEntry PITy(*PITyDIE);
|
|
auto PI = DIE::get(Alloc, dwarf::DW_TAG_member);
|
|
DIEString PIStr = getString("PI");
|
|
DIEInteger Two(2);
|
|
DIEInteger NegThree(-3);
|
|
PI->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, PIStr);
|
|
PI->addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
|
|
PI->addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, Two);
|
|
PI->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, PITy);
|
|
PI->addValue(Alloc, dwarf::DW_AT_external, dwarf::DW_FORM_flag_present, One);
|
|
PI->addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
|
|
One);
|
|
PI->addValue(Alloc, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata, NegThree);
|
|
|
|
A.addChild(std::move(PI));
|
|
|
|
uint64_t MD5Res = DIEHash().computeTypeSignature(A);
|
|
ASSERT_EQ(0x9a216000dd3788a7ULL, MD5Res);
|
|
}
|
|
|
|
// Derived from:
|
|
// struct A {
|
|
// const static float PI = 3.14;
|
|
// };
|
|
// A a;
|
|
TEST_F(DIEHashTest, MemberBlock) {
|
|
DIE &A = *DIE::get(Alloc, dwarf::DW_TAG_structure_type);
|
|
DIEInteger One(1);
|
|
DIEString AStr = getString("A");
|
|
A.addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, AStr);
|
|
A.addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, One);
|
|
A.addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
|
|
A.addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, One);
|
|
|
|
DIEInteger Four(4);
|
|
DIEString FStr = getString("float");
|
|
auto FloatTyDIE = DIE::get(Alloc, dwarf::DW_TAG_base_type);
|
|
FloatTyDIE->addValue(Alloc, dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1,
|
|
Four);
|
|
FloatTyDIE->addValue(Alloc, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
|
|
Four);
|
|
FloatTyDIE->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, FStr);
|
|
DIEEntry FloatTy(*FloatTyDIE);
|
|
auto PITyDIE = DIE::get(Alloc, dwarf::DW_TAG_const_type);
|
|
PITyDIE->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, FloatTy);
|
|
|
|
DIEEntry PITy(*PITyDIE);
|
|
auto PI = DIE::get(Alloc, dwarf::DW_TAG_member);
|
|
DIEString PIStr = getString("PI");
|
|
DIEInteger Two(2);
|
|
PI->addValue(Alloc, dwarf::DW_AT_name, dwarf::DW_FORM_strp, PIStr);
|
|
PI->addValue(Alloc, dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, One);
|
|
PI->addValue(Alloc, dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, Two);
|
|
PI->addValue(Alloc, dwarf::DW_AT_type, dwarf::DW_FORM_ref4, PITy);
|
|
PI->addValue(Alloc, dwarf::DW_AT_external, dwarf::DW_FORM_flag_present, One);
|
|
PI->addValue(Alloc, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present,
|
|
One);
|
|
|
|
DIEBlock PIBlock;
|
|
DIEInteger Blk1(0xc3);
|
|
DIEInteger Blk2(0xf5);
|
|
DIEInteger Blk3(0x48);
|
|
DIEInteger Blk4(0x40);
|
|
|
|
PIBlock.addValue(Alloc, (dwarf::Attribute)0, dwarf::DW_FORM_data1, Blk1);
|
|
PIBlock.addValue(Alloc, (dwarf::Attribute)0, dwarf::DW_FORM_data1, Blk2);
|
|
PIBlock.addValue(Alloc, (dwarf::Attribute)0, dwarf::DW_FORM_data1, Blk3);
|
|
PIBlock.addValue(Alloc, (dwarf::Attribute)0, dwarf::DW_FORM_data1, Blk4);
|
|
|
|
PI->addValue(Alloc, dwarf::DW_AT_const_value, dwarf::DW_FORM_block1,
|
|
&PIBlock);
|
|
|
|
A.addChild(std::move(PI));
|
|
|
|
uint64_t MD5Res = DIEHash().computeTypeSignature(A);
|
|
ASSERT_EQ(0x493af53ad3d3f651ULL, MD5Res);
|
|
}
|
|
}
|