| //===- llvm/unittest/DebugInfo/DWARFFormValueTest.cpp ---------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "../lib/CodeGen/AsmPrinter/DIE.h" |
| #include "../lib/CodeGen/AsmPrinter/DIEHash.h" |
| #include "llvm/Support/Dwarf.h" |
| #include "llvm/Support/Debug.h" |
| #include "llvm/Support/Format.h" |
| #include "gtest/gtest.h" |
| |
| using namespace llvm; |
| |
| namespace { |
| TEST(DIEHashTest, Data1) { |
| DIEHash Hash; |
| DIE Die(dwarf::DW_TAG_base_type); |
| DIEInteger Size(4); |
| Die.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Size); |
| uint64_t MD5Res = Hash.computeTypeSignature(Die); |
| ASSERT_EQ(0x1AFE116E83701108ULL, MD5Res); |
| } |
| |
| // struct {}; |
| TEST(DIEHashTest, TrivialType) { |
| DIE Unnamed(dwarf::DW_TAG_structure_type); |
| DIEInteger One(1); |
| Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| |
| // Line and file number are ignored. |
| Unnamed.addValue(dwarf::DW_AT_decl_file, dwarf::DW_FORM_data1, &One); |
| Unnamed.addValue(dwarf::DW_AT_decl_line, dwarf::DW_FORM_data1, &One); |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed); |
| |
| // The exact same hash GCC produces for this DIE. |
| ASSERT_EQ(0x715305ce6cfd9ad1ULL, MD5Res); |
| } |
| |
| // struct foo { }; |
| TEST(DIEHashTest, NamedType) { |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| DIEInteger One(1); |
| DIEString FooStr(&One, "foo"); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Foo); |
| |
| // The exact same hash GCC produces for this DIE. |
| ASSERT_EQ(0xd566dbd2ca5265ffULL, MD5Res); |
| } |
| |
| // namespace space { struct foo { }; } |
| TEST(DIEHashTest, NamespacedType) { |
| DIE CU(dwarf::DW_TAG_compile_unit); |
| |
| DIE *Space = new DIE(dwarf::DW_TAG_namespace); |
| DIEInteger One(1); |
| DIEString SpaceStr(&One, "space"); |
| Space->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &SpaceStr); |
| // DW_AT_declaration is ignored. |
| Space->addValue(dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present, &One); |
| // sibling? |
| |
| DIE *Foo = new DIE(dwarf::DW_TAG_structure_type); |
| DIEString FooStr(&One, "foo"); |
| Foo->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| Foo->addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| |
| Space->addChild(Foo); |
| CU.addChild(Space); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(*Foo); |
| |
| // The exact same hash GCC produces for this DIE. |
| ASSERT_EQ(0x7b80381fd17f1e33ULL, MD5Res); |
| } |
| |
| // struct { int member; }; |
| TEST(DIEHashTest, TypeWithMember) { |
| DIE Unnamed(dwarf::DW_TAG_structure_type); |
| DIEInteger Four(4); |
| Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Four); |
| |
| DIE *Member = new DIE(dwarf::DW_TAG_member); |
| DIEString MemberStr(&Four, "member"); |
| Member->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemberStr); |
| DIEInteger Zero(0); |
| Member->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero); |
| |
| Unnamed.addChild(Member); |
| |
| DIE Int(dwarf::DW_TAG_base_type); |
| DIEString IntStr(&Four, "int"); |
| Int.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &IntStr); |
| Int.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Four); |
| DIEInteger Five(5); |
| Int.addValue(dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, &Five); |
| |
| DIEEntry IntRef(&Int); |
| Member->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &IntRef); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed); |
| |
| ASSERT_EQ(0x5646aa436b7e07c6ULL, MD5Res); |
| } |
| |
| // struct foo { int mem1, mem2; }; |
| TEST(DIEHashTest, ReusedType) { |
| DIE Unnamed(dwarf::DW_TAG_structure_type); |
| DIEInteger Eight(8); |
| Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| |
| DIE *Mem1 = new DIE(dwarf::DW_TAG_member); |
| DIEInteger Four(4); |
| DIEString Mem1Str(&Four, "mem1"); |
| Mem1->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &Mem1Str); |
| DIEInteger Zero(0); |
| Mem1->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero); |
| |
| Unnamed.addChild(Mem1); |
| |
| DIE *Mem2 = new DIE(dwarf::DW_TAG_member); |
| DIEString Mem2Str(&Four, "mem2"); |
| Mem2->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &Mem2Str); |
| Mem2->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Four); |
| |
| Unnamed.addChild(Mem2); |
| |
| DIE Int(dwarf::DW_TAG_base_type); |
| DIEString IntStr(&Four, "int"); |
| Int.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &IntStr); |
| Int.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Four); |
| DIEInteger Five(5); |
| Int.addValue(dwarf::DW_AT_encoding, dwarf::DW_FORM_data1, &Five); |
| |
| DIEEntry IntRef(&Int); |
| Mem1->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &IntRef); |
| Mem2->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &IntRef); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed); |
| |
| ASSERT_EQ(0x3a7dc3ed7b76b2f8ULL, MD5Res); |
| } |
| |
| // struct foo { static foo f; }; |
| TEST(DIEHashTest, RecursiveType) { |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| DIEInteger One(1); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| DIEString FooStr(&One, "foo"); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| DIEString MemStr(&One, "mem"); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| DIEEntry FooRef(&Foo); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooRef); |
| // DW_AT_external and DW_AT_declaration are ignored anyway, so skip them. |
| |
| Foo.addChild(Mem); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Foo); |
| |
| ASSERT_EQ(0x73d8b25aef227b06ULL, MD5Res); |
| } |
| |
| // struct foo { foo *mem; }; |
| TEST(DIEHashTest, Pointer) { |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| DIEInteger Eight(8); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| DIEString FooStr(&Eight, "foo"); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| DIEString MemStr(&Eight, "mem"); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| DIEInteger Zero(0); |
| Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero); |
| |
| DIE FooPtr(dwarf::DW_TAG_pointer_type); |
| FooPtr.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| DIEEntry FooRef(&Foo); |
| FooPtr.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooRef); |
| |
| DIEEntry FooPtrRef(&FooPtr); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooPtrRef); |
| |
| Foo.addChild(Mem); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Foo); |
| |
| ASSERT_EQ(0x74ea73862e8708d2ULL, MD5Res); |
| } |
| |
| // struct foo { foo &mem; }; |
| TEST(DIEHashTest, Reference) { |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| DIEInteger Eight(8); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| DIEString FooStr(&Eight, "foo"); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| DIEString MemStr(&Eight, "mem"); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| DIEInteger Zero(0); |
| Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero); |
| |
| DIE FooRef(dwarf::DW_TAG_reference_type); |
| FooRef.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| DIEEntry FooEntry(&Foo); |
| FooRef.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooEntry); |
| |
| DIE FooRefConst(dwarf::DW_TAG_const_type); |
| DIEEntry FooRefRef(&FooRef); |
| FooRefConst.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooRefRef); |
| |
| DIEEntry FooRefConstRef(&FooRefConst); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooRefConstRef); |
| |
| Foo.addChild(Mem); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Foo); |
| |
| ASSERT_EQ(0xa0b15f467ad4525bULL, MD5Res); |
| } |
| |
| // struct foo { foo &&mem; }; |
| TEST(DIEHashTest, RValueReference) { |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| DIEInteger Eight(8); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| DIEString FooStr(&Eight, "foo"); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| DIEString MemStr(&Eight, "mem"); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| DIEInteger Zero(0); |
| Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero); |
| |
| DIE FooRef(dwarf::DW_TAG_rvalue_reference_type); |
| FooRef.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| DIEEntry FooEntry(&Foo); |
| FooRef.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooEntry); |
| |
| DIE FooRefConst(dwarf::DW_TAG_const_type); |
| DIEEntry FooRefRef(&FooRef); |
| FooRefConst.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooRefRef); |
| |
| DIEEntry FooRefConstRef(&FooRefConst); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooRefConstRef); |
| |
| Foo.addChild(Mem); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Foo); |
| |
| ASSERT_EQ(0xad211c8c3b31e57ULL, MD5Res); |
| } |
| |
| // struct foo { foo foo::*mem; }; |
| TEST(DIEHashTest, PtrToMember) { |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| DIEInteger Eight(8); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| DIEString FooStr(&Eight, "foo"); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| DIEString MemStr(&Eight, "mem"); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| DIEInteger Zero(0); |
| Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero); |
| |
| DIE PtrToFooMem(dwarf::DW_TAG_ptr_to_member_type); |
| DIEEntry FooEntry(&Foo); |
| PtrToFooMem.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &FooEntry); |
| PtrToFooMem.addValue(dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, &FooEntry); |
| |
| DIEEntry PtrToFooMemRef(&PtrToFooMem); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &PtrToFooMemRef); |
| |
| Foo.addChild(Mem); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Foo); |
| |
| ASSERT_EQ(0x852e0c9ff7c04ebULL, MD5Res); |
| } |
| |
| // 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 foo::*mem; }; |
| TEST(DIEHashTest, PtrToMemberDeclDefMatch) { |
| DIEInteger Zero(0); |
| DIEInteger One(1); |
| DIEInteger Eight(8); |
| DIEString FooStr(&Eight, "foo"); |
| DIEString BarStr(&Eight, "bar"); |
| DIEString MemStr(&Eight, "mem"); |
| uint64_t MD5ResDecl; |
| { |
| DIE Bar(dwarf::DW_TAG_structure_type); |
| Bar.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &BarStr); |
| Bar.addValue(dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present, &One); |
| |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, |
| &Zero); |
| |
| DIE PtrToFooMem(dwarf::DW_TAG_ptr_to_member_type); |
| DIEEntry BarEntry(&Bar); |
| PtrToFooMem.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &BarEntry); |
| DIEEntry FooEntry(&Foo); |
| PtrToFooMem.addValue(dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, |
| &FooEntry); |
| |
| DIEEntry PtrToFooMemRef(&PtrToFooMem); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &PtrToFooMemRef); |
| |
| Foo.addChild(Mem); |
| |
| MD5ResDecl = DIEHash().computeTypeSignature(Foo); |
| } |
| uint64_t MD5ResDef; |
| { |
| DIE Bar(dwarf::DW_TAG_structure_type); |
| Bar.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &BarStr); |
| Bar.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, |
| &Zero); |
| |
| DIE PtrToFooMem(dwarf::DW_TAG_ptr_to_member_type); |
| DIEEntry BarEntry(&Bar); |
| PtrToFooMem.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &BarEntry); |
| DIEEntry FooEntry(&Foo); |
| PtrToFooMem.addValue(dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, |
| &FooEntry); |
| |
| DIEEntry PtrToFooMemRef(&PtrToFooMem); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &PtrToFooMemRef); |
| |
| Foo.addChild(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(DIEHashTest, PtrToMemberDeclDefMisMatch) { |
| DIEInteger Zero(0); |
| DIEInteger One(1); |
| DIEInteger Eight(8); |
| DIEString FooStr(&Eight, "foo"); |
| DIEString BarStr(&Eight, "bar"); |
| DIEString MemStr(&Eight, "mem"); |
| uint64_t MD5ResDecl; |
| { |
| DIE Bar(dwarf::DW_TAG_structure_type); |
| Bar.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &BarStr); |
| Bar.addValue(dwarf::DW_AT_declaration, dwarf::DW_FORM_flag_present, &One); |
| |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, |
| &Zero); |
| |
| DIE PtrToFooMem(dwarf::DW_TAG_ptr_to_member_type); |
| DIEEntry BarEntry(&Bar); |
| PtrToFooMem.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &BarEntry); |
| PtrToFooMem.addValue(dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, |
| &BarEntry); |
| |
| DIEEntry PtrToFooMemRef(&PtrToFooMem); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &PtrToFooMemRef); |
| |
| Foo.addChild(Mem); |
| |
| MD5ResDecl = DIEHash().computeTypeSignature(Foo); |
| } |
| uint64_t MD5ResDef; |
| { |
| DIE Bar(dwarf::DW_TAG_structure_type); |
| Bar.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &BarStr); |
| Bar.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, |
| &Zero); |
| |
| DIE PtrToFooMem(dwarf::DW_TAG_ptr_to_member_type); |
| DIEEntry BarEntry(&Bar); |
| PtrToFooMem.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &BarEntry); |
| PtrToFooMem.addValue(dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4, |
| &BarEntry); |
| |
| DIEEntry PtrToFooMemRef(&PtrToFooMem); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &PtrToFooMemRef); |
| |
| Foo.addChild(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(DIEHashTest, RefUnnamedType) { |
| DIEInteger Zero(0); |
| DIEInteger One(1); |
| DIEInteger Eight(8); |
| DIEString FooStr(&Zero, "foo"); |
| DIEString MemStr(&Zero, "mem"); |
| |
| DIE Unnamed(dwarf::DW_TAG_structure_type); |
| Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| |
| DIE Foo(dwarf::DW_TAG_structure_type); |
| Foo.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| Foo.addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| |
| DIE *Mem = new DIE(dwarf::DW_TAG_member); |
| Mem->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &MemStr); |
| Mem->addValue(dwarf::DW_AT_data_member_location, dwarf::DW_FORM_data1, &Zero); |
| |
| DIE UnnamedPtr(dwarf::DW_TAG_pointer_type); |
| UnnamedPtr.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &Eight); |
| DIEEntry UnnamedRef(&Unnamed); |
| UnnamedPtr.addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &UnnamedRef); |
| |
| DIEEntry UnnamedPtrRef(&UnnamedPtr); |
| Mem->addValue(dwarf::DW_AT_type, dwarf::DW_FORM_ref4, &UnnamedPtrRef); |
| |
| Foo.addChild(Mem); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Foo); |
| |
| ASSERT_EQ(0x954e026f01c02529ULL, MD5Res); |
| } |
| |
| // struct { struct bar { }; }; |
| TEST(DIEHashTest, NestedType) { |
| DIE Unnamed(dwarf::DW_TAG_structure_type); |
| DIEInteger One(1); |
| Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| |
| DIE *Foo = new DIE(dwarf::DW_TAG_structure_type); |
| DIEString FooStr(&One, "foo"); |
| Foo->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FooStr); |
| Foo->addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| |
| Unnamed.addChild(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(DIEHashTest, MemberFunc) { |
| DIE Unnamed(dwarf::DW_TAG_structure_type); |
| DIEInteger One(1); |
| Unnamed.addValue(dwarf::DW_AT_byte_size, dwarf::DW_FORM_data1, &One); |
| |
| DIE *Func = new DIE(dwarf::DW_TAG_subprogram); |
| DIEString FuncStr(&One, "func"); |
| Func->addValue(dwarf::DW_AT_name, dwarf::DW_FORM_strp, &FuncStr); |
| |
| Unnamed.addChild(Func); |
| |
| uint64_t MD5Res = DIEHash().computeTypeSignature(Unnamed); |
| |
| // The exact same hash GCC produces for this DIE. |
| ASSERT_EQ(0xd36a1b6dfb604ba0ULL, MD5Res); |
| } |
| } |