| //===-- SymbolTest.cpp ----------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Plugins/ObjectFile/Mach-O/ObjectFileMachO.h" |
| #include "Plugins/SymbolFile/DWARF/SymbolFileDWARF.h" |
| #include "Plugins/TypeSystem/Clang/TypeSystemClang.h" |
| #include "TestingSupport/SubsystemRAII.h" |
| #include "TestingSupport/TestUtilities.h" |
| |
| #include "lldb/Core/DataFileCache.h" |
| #include "lldb/Core/Module.h" |
| #include "lldb/Host/FileSystem.h" |
| #include "lldb/Host/HostInfo.h" |
| #include "lldb/Symbol/Symbol.h" |
| #include "lldb/Symbol/Symtab.h" |
| #include "lldb/Utility/DataEncoder.h" |
| #include "lldb/Utility/DataExtractor.h" |
| |
| #include <memory> |
| |
| #include "gtest/gtest.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| class SymtabTest : public testing::Test { |
| SubsystemRAII<FileSystem, HostInfo, ObjectFileMachO, SymbolFileDWARF, |
| TypeSystemClang> |
| subsystem; |
| }; |
| |
| static void EncodeDecode(const Symtab &object, ByteOrder byte_order) { |
| const uint8_t addr_size = 8; |
| DataEncoder file(byte_order, addr_size); |
| |
| object.Encode(file); |
| llvm::ArrayRef<uint8_t> bytes = file.GetData(); |
| DataExtractor data(bytes.data(), bytes.size(), byte_order, addr_size); |
| Symtab decoded_object(object.GetObjectFile()); |
| offset_t data_offset = 0; |
| bool uuid_mismatch = false; |
| decoded_object.Decode(data, &data_offset, uuid_mismatch); |
| ASSERT_EQ(object.GetNumSymbols(), decoded_object.GetNumSymbols()); |
| for (size_t i = 0; i < object.GetNumSymbols(); ++i) |
| EXPECT_EQ(*object.SymbolAtIndex(i), *decoded_object.SymbolAtIndex(i)); |
| } |
| |
| static void EncodeDecode(const Symtab &object) { |
| EncodeDecode(object, eByteOrderLittle); |
| EncodeDecode(object, eByteOrderBig); |
| } |
| |
| TEST_F(SymtabTest, EncodeDecodeSymtab) { |
| |
| auto ExpectedFile = TestFile::fromYaml(R"( |
| --- !mach-o |
| FileHeader: |
| magic: 0xFEEDFACF |
| cputype: 0x100000C |
| cpusubtype: 0x0 |
| filetype: 0x2 |
| ncmds: 17 |
| sizeofcmds: 792 |
| flags: 0x200085 |
| reserved: 0x0 |
| LoadCommands: |
| - cmd: LC_SEGMENT_64 |
| cmdsize: 72 |
| segname: __PAGEZERO |
| vmaddr: 0 |
| vmsize: 4294967296 |
| fileoff: 0 |
| filesize: 0 |
| maxprot: 0 |
| initprot: 0 |
| nsects: 0 |
| flags: 0 |
| - cmd: LC_SEGMENT_64 |
| cmdsize: 232 |
| segname: __TEXT |
| vmaddr: 4294967296 |
| vmsize: 16384 |
| fileoff: 0 |
| filesize: 16384 |
| maxprot: 5 |
| initprot: 5 |
| nsects: 2 |
| flags: 0 |
| Sections: |
| - sectname: __text |
| segname: __TEXT |
| addr: 0x100003F94 |
| size: 36 |
| offset: 0x3F94 |
| align: 2 |
| reloff: 0x0 |
| nreloc: 0 |
| flags: 0x80000400 |
| reserved1: 0x0 |
| reserved2: 0x0 |
| reserved3: 0x0 |
| content: FF8300D1E80300AA00008052FF1F00B9E81B00B9E10B00F9E20700F9FF830091C0035FD6 |
| - sectname: __unwind_info |
| segname: __TEXT |
| addr: 0x100003FB8 |
| size: 72 |
| offset: 0x3FB8 |
| align: 2 |
| reloff: 0x0 |
| nreloc: 0 |
| flags: 0x0 |
| reserved1: 0x0 |
| reserved2: 0x0 |
| reserved3: 0x0 |
| content: 010000001C000000000000001C000000000000001C00000002000000943F00003400000034000000B93F00000000000034000000030000000C000100100001000000000000200002 |
| - cmd: LC_SEGMENT_64 |
| cmdsize: 72 |
| segname: __LINKEDIT |
| vmaddr: 4294983680 |
| vmsize: 16384 |
| fileoff: 16384 |
| filesize: 674 |
| maxprot: 1 |
| initprot: 1 |
| nsects: 0 |
| flags: 0 |
| - cmd: LC_DYLD_CHAINED_FIXUPS |
| cmdsize: 16 |
| dataoff: 16384 |
| datasize: 56 |
| - cmd: LC_DYLD_EXPORTS_TRIE |
| cmdsize: 16 |
| dataoff: 16440 |
| datasize: 48 |
| - cmd: LC_SYMTAB |
| cmdsize: 24 |
| symoff: 16496 |
| nsyms: 10 |
| stroff: 16656 |
| strsize: 128 |
| - cmd: LC_DYSYMTAB |
| cmdsize: 80 |
| ilocalsym: 0 |
| nlocalsym: 8 |
| iextdefsym: 8 |
| nextdefsym: 2 |
| iundefsym: 10 |
| nundefsym: 0 |
| tocoff: 0 |
| ntoc: 0 |
| modtaboff: 0 |
| nmodtab: 0 |
| extrefsymoff: 0 |
| nextrefsyms: 0 |
| indirectsymoff: 0 |
| nindirectsyms: 0 |
| extreloff: 0 |
| nextrel: 0 |
| locreloff: 0 |
| nlocrel: 0 |
| - cmd: LC_LOAD_DYLINKER |
| cmdsize: 32 |
| name: 12 |
| Content: '/usr/lib/dyld' |
| ZeroPadBytes: 7 |
| - cmd: LC_UUID |
| cmdsize: 24 |
| uuid: 1EECD2B8-16EA-3FEC-AB3C-F46139DBD0E2 |
| - cmd: LC_BUILD_VERSION |
| cmdsize: 32 |
| platform: 1 |
| minos: 786432 |
| sdk: 786432 |
| ntools: 1 |
| Tools: |
| - tool: 3 |
| version: 46596096 |
| - cmd: LC_SOURCE_VERSION |
| cmdsize: 16 |
| version: 0 |
| - cmd: LC_MAIN |
| cmdsize: 24 |
| entryoff: 16276 |
| stacksize: 0 |
| - cmd: LC_LOAD_DYLIB |
| cmdsize: 48 |
| dylib: |
| name: 24 |
| timestamp: 2 |
| current_version: 78643968 |
| compatibility_version: 65536 |
| Content: '/usr/lib/libc++.1.dylib' |
| ZeroPadBytes: 1 |
| - cmd: LC_LOAD_DYLIB |
| cmdsize: 56 |
| dylib: |
| name: 24 |
| timestamp: 2 |
| current_version: 85917696 |
| compatibility_version: 65536 |
| Content: '/usr/lib/libSystem.B.dylib' |
| ZeroPadBytes: 6 |
| - cmd: LC_FUNCTION_STARTS |
| cmdsize: 16 |
| dataoff: 16488 |
| datasize: 8 |
| - cmd: LC_DATA_IN_CODE |
| cmdsize: 16 |
| dataoff: 16496 |
| datasize: 0 |
| - cmd: LC_CODE_SIGNATURE |
| cmdsize: 16 |
| dataoff: 16784 |
| datasize: 274 |
| LinkEditData: |
| NameList: |
| - n_strx: 28 |
| n_type: 0x64 |
| n_sect: 0 |
| n_desc: 0 |
| n_value: 0 |
| - n_strx: 64 |
| n_type: 0x64 |
| n_sect: 0 |
| n_desc: 0 |
| n_value: 0 |
| - n_strx: 73 |
| n_type: 0x66 |
| n_sect: 0 |
| n_desc: 1 |
| n_value: 1639532873 |
| - n_strx: 1 |
| n_type: 0x2E |
| n_sect: 1 |
| n_desc: 0 |
| n_value: 4294983572 |
| - n_strx: 115 |
| n_type: 0x24 |
| n_sect: 1 |
| n_desc: 0 |
| n_value: 4294983572 |
| - n_strx: 1 |
| n_type: 0x24 |
| n_sect: 0 |
| n_desc: 0 |
| n_value: 36 |
| - n_strx: 1 |
| n_type: 0x4E |
| n_sect: 1 |
| n_desc: 0 |
| n_value: 36 |
| - n_strx: 1 |
| n_type: 0x64 |
| n_sect: 1 |
| n_desc: 0 |
| n_value: 0 |
| - n_strx: 2 |
| n_type: 0xF |
| n_sect: 1 |
| n_desc: 16 |
| n_value: 4294967296 |
| - n_strx: 22 |
| n_type: 0xF |
| n_sect: 1 |
| n_desc: 0 |
| n_value: 4294983572 |
| StringTable: |
| - ' ' |
| - __mh_execute_header |
| - _main |
| - '/Users/gclayton/Documents/src/args/' |
| - main.cpp |
| - '/Users/gclayton/Documents/src/args/main.o' |
| - _main |
| - '' |
| - '' |
| - '' |
| - '' |
| - '' |
| - '' |
| - '' |
| ... |
| )"); |
| |
| ASSERT_THAT_EXPECTED(ExpectedFile, llvm::Succeeded()); |
| auto module_sp = std::make_shared<Module>(ExpectedFile->moduleSpec()); |
| ObjectFile *objfile = module_sp->GetObjectFile(); |
| ASSERT_NE(objfile, nullptr); |
| |
| // Test encoding and decoding an empty symbol table. |
| Symtab symtab(objfile); |
| symtab.PreloadSymbols(); |
| EncodeDecode(symtab); |
| |
| // Now encode and decode an actual symbol table from our yaml. |
| Symtab *module_symtab = module_sp->GetSymtab(); |
| ASSERT_NE(module_symtab, nullptr); |
| module_symtab->PreloadSymbols(); |
| EncodeDecode(*module_symtab); |
| } |
