vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
838 lines
26 KiB
C++
838 lines
26 KiB
C++
//===-- SymbolTest.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 "Plugins/ObjectFile/ELF/ObjectFileELF.h"
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#include "Plugins/ObjectFile/Mach-O/ObjectFileMachO.h"
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#include "Plugins/SymbolFile/DWARF/SymbolFileDWARF.h"
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#include "Plugins/SymbolFile/Symtab/SymbolFileSymtab.h"
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#include "Plugins/TypeSystem/Clang/TypeSystemClang.h"
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#include "TestingSupport/SubsystemRAII.h"
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#include "TestingSupport/TestUtilities.h"
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#include "lldb/Core/DataFileCache.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Host/HostInfo.h"
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#include "lldb/Symbol/Symbol.h"
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#include "lldb/Symbol/Symtab.h"
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#include "lldb/Utility/DataEncoder.h"
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#include "lldb/Utility/DataExtractor.h"
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#include <memory>
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#include "gtest/gtest.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::plugin::dwarf;
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class SymtabTest : public testing::Test {
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SubsystemRAII<FileSystem, HostInfo, ObjectFileMachO, SymbolFileDWARF,
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ObjectFileELF, SymbolFileSymtab, TypeSystemClang>
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subsystem;
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};
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static void EncodeDecode(const Symtab &object, ByteOrder byte_order) {
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const uint8_t addr_size = 8;
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DataEncoder file(byte_order, addr_size);
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object.Encode(file);
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llvm::ArrayRef<uint8_t> bytes = file.GetData();
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DataExtractor data(bytes.data(), bytes.size(), byte_order, addr_size);
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Symtab decoded_object(object.GetObjectFile());
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offset_t data_offset = 0;
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bool uuid_mismatch = false;
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decoded_object.Decode(data, &data_offset, uuid_mismatch);
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ASSERT_EQ(object.GetNumSymbols(), decoded_object.GetNumSymbols());
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for (size_t i = 0; i < object.GetNumSymbols(); ++i)
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EXPECT_EQ(*object.SymbolAtIndex(i), *decoded_object.SymbolAtIndex(i));
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}
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static void EncodeDecode(const Symtab &object) {
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EncodeDecode(object, eByteOrderLittle);
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EncodeDecode(object, eByteOrderBig);
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}
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TEST_F(SymtabTest, EncodeDecodeSymtab) {
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auto ExpectedFile = TestFile::fromYaml(R"(
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--- !mach-o
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FileHeader:
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magic: 0xFEEDFACF
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cputype: 0x100000C
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cmdsize: 16
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version: 0
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dylib:
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timestamp: 2
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current_version: 85917696
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compatibility_version: 65536
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Content: '/usr/lib/libSystem.B.dylib'
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StringTable:
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- ' '
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- __mh_execute_header
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- _main
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- '/Users/gclayton/Documents/src/args/'
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- main.cpp
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- '/Users/gclayton/Documents/src/args/main.o'
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- _main
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- ''
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- ''
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- ''
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- ''
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- ''
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- ''
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- ''
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...
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)");
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ASSERT_THAT_EXPECTED(ExpectedFile, llvm::Succeeded());
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auto module_sp = std::make_shared<Module>(ExpectedFile->moduleSpec());
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ObjectFile *objfile = module_sp->GetObjectFile();
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ASSERT_NE(objfile, nullptr);
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// Test encoding and decoding an empty symbol table.
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Symtab symtab(objfile);
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symtab.PreloadSymbols();
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EncodeDecode(symtab);
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// Now encode and decode an actual symbol table from our yaml.
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Symtab *module_symtab = module_sp->GetSymtab();
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ASSERT_NE(module_symtab, nullptr);
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module_symtab->PreloadSymbols();
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EncodeDecode(*module_symtab);
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}
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TEST_F(SymtabTest, TestDecodeCStringMaps) {
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// Symbol tables save out the symbols, but they also save out the symbol table
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// name indexes. These name indexes are a map of sorted ConstString + T pairs
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// and when they are decoded from a file, they are no longer sorted since
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// ConstString objects can be sorted by "const char *" and the order in which
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// these strings are created won't be the same in a new process. We need to
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// ensure these name lookups happen correctly when we load the name indexes,
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// so this test loads a symbol table from a cache file from
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// "lldb/unittests/Symbol/Inputs/indexnames-symtab-cache" and make sure we
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// can correctly lookup each of the names in the symbol table.
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auto ExpectedFile = TestFile::fromYaml(R"(
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--- !mach-o
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FileHeader:
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magic: 0xFEEDFACF
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cputype: 0x100000C
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|
n_desc: 0
|
|
n_value: 8
|
|
- n_strx: 1
|
|
n_type: 0x2E
|
|
n_sect: 1
|
|
n_desc: 0
|
|
n_value: 4294983540
|
|
- n_strx: 162
|
|
n_type: 0x24
|
|
n_sect: 1
|
|
n_desc: 0
|
|
n_value: 4294983540
|
|
- n_strx: 1
|
|
n_type: 0x24
|
|
n_sect: 0
|
|
n_desc: 0
|
|
n_value: 8
|
|
- n_strx: 1
|
|
n_type: 0x4E
|
|
n_sect: 1
|
|
n_desc: 0
|
|
n_value: 8
|
|
- n_strx: 1
|
|
n_type: 0x2E
|
|
n_sect: 1
|
|
n_desc: 0
|
|
n_value: 4294983548
|
|
- n_strx: 167
|
|
n_type: 0x24
|
|
n_sect: 1
|
|
n_desc: 0
|
|
n_value: 4294983548
|
|
- n_strx: 1
|
|
n_type: 0x24
|
|
n_sect: 0
|
|
n_desc: 0
|
|
n_value: 52
|
|
- n_strx: 1
|
|
n_type: 0x4E
|
|
n_sect: 1
|
|
n_desc: 0
|
|
n_value: 52
|
|
- 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: 4294983532
|
|
- n_strx: 27
|
|
n_type: 0xF
|
|
n_sect: 1
|
|
n_desc: 0
|
|
n_value: 4294983540
|
|
- n_strx: 32
|
|
n_type: 0xF
|
|
n_sect: 1
|
|
n_desc: 0
|
|
n_value: 4294983524
|
|
- n_strx: 37
|
|
n_type: 0xF
|
|
n_sect: 1
|
|
n_desc: 0
|
|
n_value: 4294983548
|
|
StringTable:
|
|
- ' '
|
|
- __mh_execute_header
|
|
- _bar
|
|
- _baz
|
|
- _foo
|
|
- _main
|
|
- '/Users/gclayton/Documents/objfiles/index-names/'
|
|
- main.c
|
|
- '/Users/gclayton/Documents/objfiles/index-names/main.o'
|
|
- _foo
|
|
- _bar
|
|
- _baz
|
|
- _main
|
|
- ''
|
|
- ''
|
|
- ''
|
|
FunctionStarts: [ 0x3F64, 0x3F6C, 0x3F74, 0x3F7C ]
|
|
...
|
|
)");
|
|
// This data was taken from a hex dump of the object file from the above yaml
|
|
// and hexdumped so we can load the cache data in this test.
|
|
const uint8_t symtab_cache_bytes[] = {
|
|
0x01, 0x10, 0x3e, 0x94, 0x86, 0x6e, 0x0d, 0x1a,
|
|
0x39, 0xbd, 0x97, 0x5b, 0x64, 0xe8, 0xf1, 0xfd,
|
|
0xba, 0xae, 0xff, 0x53, 0x54, 0x41, 0x42, 0x91,
|
|
0x00, 0x00, 0x00, 0x00, 0x2f, 0x55, 0x73, 0x65,
|
|
0x72, 0x73, 0x2f, 0x67, 0x63, 0x6c, 0x61, 0x79,
|
|
0x74, 0x6f, 0x6e, 0x2f, 0x44, 0x6f, 0x63, 0x75,
|
|
0x6d, 0x65, 0x6e, 0x74, 0x73, 0x2f, 0x6f, 0x62,
|
|
0x6a, 0x66, 0x69, 0x6c, 0x65, 0x73, 0x2f, 0x69,
|
|
0x6e, 0x64, 0x65, 0x78, 0x2d, 0x6e, 0x61, 0x6d,
|
|
0x65, 0x73, 0x2f, 0x6d, 0x61, 0x69, 0x6e, 0x2e,
|
|
0x63, 0x00, 0x2f, 0x55, 0x73, 0x65, 0x72, 0x73,
|
|
0x2f, 0x67, 0x63, 0x6c, 0x61, 0x79, 0x74, 0x6f,
|
|
0x6e, 0x2f, 0x44, 0x6f, 0x63, 0x75, 0x6d, 0x65,
|
|
0x6e, 0x74, 0x73, 0x2f, 0x6f, 0x62, 0x6a, 0x66,
|
|
0x69, 0x6c, 0x65, 0x73, 0x2f, 0x69, 0x6e, 0x64,
|
|
0x65, 0x78, 0x2d, 0x6e, 0x61, 0x6d, 0x65, 0x73,
|
|
0x2f, 0x6d, 0x61, 0x69, 0x6e, 0x2e, 0x6f, 0x00,
|
|
0x66, 0x6f, 0x6f, 0x00, 0x62, 0x61, 0x72, 0x00,
|
|
0x62, 0x61, 0x7a, 0x00, 0x6d, 0x61, 0x69, 0x6e,
|
|
0x00, 0x5f, 0x6d, 0x68, 0x5f, 0x65, 0x78, 0x65,
|
|
0x63, 0x75, 0x74, 0x65, 0x5f, 0x68, 0x65, 0x61,
|
|
0x64, 0x65, 0x72, 0x00, 0x53, 0x59, 0x4d, 0x42,
|
|
0x01, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x2a,
|
|
0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x64, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x0a, 0x20, 0x01, 0x37, 0x00, 0x00, 0x00, 0x00,
|
|
0x7b, 0xc3, 0x69, 0x62, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x01, 0x00, 0x66, 0x00, 0x04, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x02, 0x32, 0x01, 0x6d, 0x00, 0x00,
|
|
0x00, 0x01, 0x64, 0x3f, 0x00, 0x00, 0x01, 0x00,
|
|
0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x08, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x02, 0x32, 0x01, 0x71,
|
|
0x00, 0x00, 0x00, 0x01, 0x6c, 0x3f, 0x00, 0x00,
|
|
0x01, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00,
|
|
0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x32,
|
|
0x01, 0x75, 0x00, 0x00, 0x00, 0x01, 0x74, 0x3f,
|
|
0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x08, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x0f, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x02, 0x32, 0x01, 0x79, 0x00, 0x00, 0x00, 0x01,
|
|
0x7c, 0x3f, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
|
|
0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x0f, 0x00, 0x14, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x04, 0x12, 0x02, 0x7e, 0x00, 0x00,
|
|
0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
|
|
0x00, 0x00, 0x64, 0x3f, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x10, 0x00, 0x0f, 0x00, 0x01, 0x00,
|
|
0x43, 0x4d, 0x41, 0x50, 0x07, 0x00, 0x00, 0x00,
|
|
0x6d, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
|
|
0x75, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
|
|
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x79, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00,
|
|
0x37, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
|
|
0x71, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
|
|
0x7e, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00
|
|
};
|
|
|
|
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.
|
|
DataExtractor data(symtab_cache_bytes, sizeof(symtab_cache_bytes),
|
|
eByteOrderLittle, 8);
|
|
Symtab symtab(objfile);
|
|
offset_t data_offset = 0;
|
|
bool uuid_mismatch = false; // Gets set to true if signature doesn't match.
|
|
const bool success = symtab.Decode(data, &data_offset, uuid_mismatch);
|
|
ASSERT_EQ(success, true);
|
|
ASSERT_EQ(uuid_mismatch, false);
|
|
|
|
// Now make sure that name lookup works for all symbols. This indicates that
|
|
// the Symtab::NameToIndexMap was decoded correctly and works as expected.
|
|
Symbol *symbol = nullptr;
|
|
symbol = symtab.FindFirstSymbolWithNameAndType(ConstString("main"),
|
|
eSymbolTypeCode,
|
|
Symtab::eDebugAny,
|
|
Symtab::eVisibilityAny);
|
|
ASSERT_NE(symbol, nullptr);
|
|
symbol = symtab.FindFirstSymbolWithNameAndType(ConstString("foo"),
|
|
eSymbolTypeCode,
|
|
Symtab::eDebugAny,
|
|
Symtab::eVisibilityAny);
|
|
ASSERT_NE(symbol, nullptr);
|
|
symbol = symtab.FindFirstSymbolWithNameAndType(ConstString("bar"),
|
|
eSymbolTypeCode,
|
|
Symtab::eDebugAny,
|
|
Symtab::eVisibilityAny);
|
|
ASSERT_NE(symbol, nullptr);
|
|
symbol = symtab.FindFirstSymbolWithNameAndType(ConstString("baz"),
|
|
eSymbolTypeCode,
|
|
Symtab::eDebugAny,
|
|
Symtab::eVisibilityAny);
|
|
ASSERT_NE(symbol, nullptr);
|
|
}
|
|
|
|
TEST_F(SymtabTest, TestSymbolFileCreatedOnDemand) {
|
|
auto ExpectedFile = TestFile::fromYaml(R"(
|
|
--- !ELF
|
|
FileHeader:
|
|
Class: ELFCLASS64
|
|
Data: ELFDATA2LSB
|
|
Type: ET_EXEC
|
|
Machine: EM_X86_64
|
|
Entry: 0x0000000000400180
|
|
Sections:
|
|
- Name: .text
|
|
Type: SHT_PROGBITS
|
|
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
|
|
Address: 0x0000000000400180
|
|
AddressAlign: 0x0000000000000010
|
|
Content: 554889E58B042500106000890425041060005DC3
|
|
Symbols:
|
|
- Name: _start
|
|
Type: STT_FUNC
|
|
Section: .text
|
|
Value: 0x0000000000400180
|
|
Size: 0x0000000000000014
|
|
Binding: STB_GLOBAL
|
|
...
|
|
)");
|
|
ASSERT_THAT_EXPECTED(ExpectedFile, llvm::Succeeded());
|
|
auto module_sp = std::make_shared<Module>(ExpectedFile->moduleSpec());
|
|
|
|
// The symbol file should not be created by default.
|
|
Symtab *module_symtab = module_sp->GetSymtab(/*can_create=*/false);
|
|
ASSERT_EQ(module_symtab, nullptr);
|
|
|
|
// But it should be created on demand.
|
|
module_symtab = module_sp->GetSymtab(/*can_create=*/true);
|
|
ASSERT_NE(module_symtab, nullptr);
|
|
|
|
// And we should be able to get it again once it has been created.
|
|
Symtab *cached_module_symtab = module_sp->GetSymtab(/*can_create=*/false);
|
|
ASSERT_EQ(module_symtab, cached_module_symtab);
|
|
}
|
|
|
|
TEST_F(SymtabTest, TestSymbolTableCreatedOnDemand) {
|
|
const char *yamldata = R"(
|
|
--- !ELF
|
|
FileHeader:
|
|
Class: ELFCLASS64
|
|
Data: ELFDATA2LSB
|
|
Type: ET_EXEC
|
|
Machine: EM_386
|
|
DWARF:
|
|
debug_abbrev:
|
|
- Table:
|
|
- Code: 0x00000001
|
|
Tag: DW_TAG_compile_unit
|
|
Children: DW_CHILDREN_no
|
|
Attributes:
|
|
- Attribute: DW_AT_addr_base
|
|
Form: DW_FORM_sec_offset
|
|
debug_info:
|
|
- Version: 5
|
|
AddrSize: 4
|
|
UnitType: DW_UT_compile
|
|
Entries:
|
|
- AbbrCode: 0x00000001
|
|
Values:
|
|
- Value: 0x8 # Offset of the first Address past the header
|
|
- AbbrCode: 0x0
|
|
debug_addr:
|
|
- Version: 5
|
|
AddressSize: 4
|
|
Entries:
|
|
- Address: 0x1234
|
|
- Address: 0x5678
|
|
debug_line:
|
|
- Length: 42
|
|
Version: 2
|
|
PrologueLength: 36
|
|
MinInstLength: 1
|
|
DefaultIsStmt: 1
|
|
LineBase: 251
|
|
LineRange: 14
|
|
OpcodeBase: 13
|
|
StandardOpcodeLengths: [ 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1 ]
|
|
IncludeDirs:
|
|
- '/tmp'
|
|
Files:
|
|
- Name: main.cpp
|
|
DirIdx: 1
|
|
ModTime: 0
|
|
Length: 0
|
|
)";
|
|
llvm::Expected<TestFile> file = TestFile::fromYaml(yamldata);
|
|
EXPECT_THAT_EXPECTED(file, llvm::Succeeded());
|
|
auto module_sp = std::make_shared<Module>(file->moduleSpec());
|
|
|
|
SymbolFile *symbol_file = module_sp->GetSymbolFile();
|
|
// At this point, the symbol table is not created. This is because the above
|
|
// yaml data contains the necessary sections in order for
|
|
// SymbolFileDWARF::CalculateAbilities() to identify all abilities, saving it
|
|
// from calling SymbolFileDWARFDebugMap::CalculateAbilities(), which
|
|
// eventually loads the symbol table, which we don't want.
|
|
|
|
// The symbol table should not be created if asked not to.
|
|
Symtab *symtab = symbol_file->GetSymtab(/*can_create=*/false);
|
|
ASSERT_EQ(symtab, nullptr);
|
|
|
|
// But it should be created on demand.
|
|
symtab = symbol_file->GetSymtab(/*can_create=*/true);
|
|
ASSERT_NE(symtab, nullptr);
|
|
|
|
// And we should be able to get it again once it has been created.
|
|
Symtab *cached_symtab = symbol_file->GetSymtab(/*can_create=*/false);
|
|
ASSERT_EQ(symtab, cached_symtab);
|
|
}
|