[lld] r307590 - [lld/pdb] Add some basic linker module symbols.

Galina Kistanova via llvm-commits llvm-commits at lists.llvm.org
Tue Jul 11 19:28:40 PDT 2017


Hello Zachary,

Some of your resent commits broke one of our builders:
http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/11043

Failing Tests (1):
    lld :: COFF/pdb-diff.test

Please have a look?

Thanks

Galina

On Mon, Jul 10, 2017 at 2:01 PM, Zachary Turner via llvm-commits <
llvm-commits at lists.llvm.org> wrote:

> Author: zturner
> Date: Mon Jul 10 14:01:37 2017
> New Revision: 307590
>
> URL: http://llvm.org/viewvc/llvm-project?rev=307590&view=rev
> Log:
> [lld/pdb] Add some basic linker module symbols.
>
> Differential Revision: https://reviews.llvm.org/D35152
>
> Added:
>     lld/trunk/test/COFF/pdb-linker-module.test
> Modified:
>     lld/trunk/COFF/Config.h
>     lld/trunk/COFF/Driver.cpp
>     lld/trunk/COFF/Error.cpp
>     lld/trunk/COFF/Error.h
>     lld/trunk/COFF/PDB.cpp
>     lld/trunk/COFF/PDB.h
>     lld/trunk/COFF/Writer.cpp
>     lld/trunk/ELF/Config.h
>     lld/trunk/ELF/Driver.cpp
>     lld/trunk/ELF/Error.cpp
>     lld/trunk/ELF/Error.h
>
> Modified: lld/trunk/COFF/Config.h
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/COFF/Config.
> h?rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/COFF/Config.h (original)
> +++ lld/trunk/COFF/Config.h Mon Jul 10 14:01:37 2017
> @@ -92,6 +92,7 @@ struct Configuration {
>    bool WriteSymtab = true;
>    unsigned DebugTypes = static_cast<unsigned>(DebugType::None);
>    llvm::SmallString<128> PDBPath;
> +  std::vector<llvm::StringRef> Argv;
>
>    // Symbols in this set are considered as live by the garbage collector.
>    std::set<SymbolBody *> GCRoot;
>
> Modified: lld/trunk/COFF/Driver.cpp
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/COFF/Driver.
> cpp?rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/COFF/Driver.cpp (original)
> +++ lld/trunk/COFF/Driver.cpp Mon Jul 10 14:01:37 2017
> @@ -55,8 +55,8 @@ std::vector<SpecificAllocBase *> Specifi
>  bool link(ArrayRef<const char *> Args, raw_ostream &Diag) {
>    ErrorCount = 0;
>    ErrorOS = &Diag;
> -  Argv0 = Args[0];
>    Config = make<Configuration>();
> +  Config->Argv = {Args.begin(), Args.end()};
>    Config->ColorDiagnostics =
>        (ErrorOS == &llvm::errs() && Process::StandardErrHasColors());
>    Driver = make<LinkerDriver>();
>
> Modified: lld/trunk/COFF/Error.cpp
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/COFF/Error.
> cpp?rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/COFF/Error.cpp (original)
> +++ lld/trunk/COFF/Error.cpp Mon Jul 10 14:01:37 2017
> @@ -29,7 +29,6 @@ namespace lld {
>  static std::mutex Mu;
>
>  namespace coff {
> -StringRef Argv0;
>  uint64_t ErrorCount;
>  raw_ostream *ErrorOS;
>
> @@ -45,7 +44,7 @@ static LLVM_ATTRIBUTE_NORETURN void exit
>  }
>
>  static void print(StringRef S, raw_ostream::Colors C) {
> -  *ErrorOS << Argv0 + ": ";
> +  *ErrorOS << Config->Argv[0] << ": ";
>    if (Config->ColorDiagnostics) {
>      ErrorOS->changeColor(C, true);
>      *ErrorOS << S;
> @@ -58,7 +57,7 @@ static void print(StringRef S, raw_ostre
>  void log(const Twine &Msg) {
>    if (Config->Verbose) {
>      std::lock_guard<std::mutex> Lock(Mu);
> -    outs() << Argv0 << ": " << Msg << "\n";
> +    outs() << Config->Argv[0] << ": " << Msg << "\n";
>      outs().flush();
>    }
>  }
>
> Modified: lld/trunk/COFF/Error.h
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/COFF/Error.
> h?rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/COFF/Error.h (original)
> +++ lld/trunk/COFF/Error.h Mon Jul 10 14:01:37 2017
> @@ -18,7 +18,6 @@ namespace coff {
>
>  extern uint64_t ErrorCount;
>  extern llvm::raw_ostream *ErrorOS;
> -extern llvm::StringRef Argv0;
>
>  void log(const Twine &Msg);
>  void message(const Twine &Msg);
>
> Modified: lld/trunk/COFF/PDB.cpp
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/COFF/PDB.
> cpp?rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/COFF/PDB.cpp (original)
> +++ lld/trunk/COFF/PDB.cpp Mon Jul 10 14:01:37 2017
> @@ -18,19 +18,20 @@
>  #include "llvm/DebugInfo/CodeView/DebugSubsectionRecord.h"
>  #include "llvm/DebugInfo/CodeView/DebugSubsectionVisitor.h"
>  #include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h"
> +#include "llvm/DebugInfo/CodeView/SymbolSerializer.h"
>  #include "llvm/DebugInfo/CodeView/TypeDumpVisitor.h"
>  #include "llvm/DebugInfo/CodeView/TypeIndexDiscovery.h"
>  #include "llvm/DebugInfo/CodeView/TypeStreamMerger.h"
>  #include "llvm/DebugInfo/CodeView/TypeTableBuilder.h"
>  #include "llvm/DebugInfo/MSF/MSFBuilder.h"
>  #include "llvm/DebugInfo/MSF/MSFCommon.h"
> +#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h"
>  #include "llvm/DebugInfo/PDB/Native/DbiStream.h"
>  #include "llvm/DebugInfo/PDB/Native/DbiStreamBuilder.h"
>  #include "llvm/DebugInfo/PDB/Native/InfoStream.h"
>  #include "llvm/DebugInfo/PDB/Native/InfoStreamBuilder.h"
>  #include "llvm/DebugInfo/PDB/Native/PDBFile.h"
>  #include "llvm/DebugInfo/PDB/Native/PDBFileBuilder.h"
> -#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptorBuilder.h"
>  #include "llvm/DebugInfo/PDB/Native/PDBStringTableBuilder.h"
>  #include "llvm/DebugInfo/PDB/Native/PDBTypeServerHandler.h"
>  #include "llvm/DebugInfo/PDB/Native/TpiStream.h"
> @@ -396,9 +397,54 @@ static void addObjectsToPDB(BumpPtrAlloc
>    addTypeInfo(Builder.getIpiBuilder(), IDTable);
>  }
>
> +static void addLinkerModuleSymbols(StringRef Path,
> +                                   pdb::DbiModuleDescriptorBuilder &Mod,
> +                                   BumpPtrAllocator &Allocator) {
> +  codeview::SymbolSerializer Serializer(Allocator,
> CodeViewContainer::Pdb);
> +  codeview::ObjNameSym ONS(SymbolRecordKind::ObjNameSym);
> +  codeview::Compile3Sym CS(SymbolRecordKind::Compile3Sym);
> +  codeview::EnvBlockSym EBS(SymbolRecordKind::EnvBlockSym);
> +
> +  ONS.Name = "* Linker *";
> +  ONS.Signature = 0;
> +
> +  CS.Machine = Config->is64() ? CPUType::X64 : CPUType::Intel80386;
> +  CS.Flags = CompileSym3Flags::None;
> +  CS.VersionBackendBuild = 0;
> +  CS.VersionBackendMajor = 0;
> +  CS.VersionBackendMinor = 0;
> +  CS.VersionBackendQFE = 0;
> +  CS.VersionFrontendBuild = 0;
> +  CS.VersionFrontendMajor = 0;
> +  CS.VersionFrontendMinor = 0;
> +  CS.VersionFrontendQFE = 0;
> +  CS.Version = "LLVM Linker";
> +  CS.setLanguage(SourceLanguage::Link);
> +
> +  ArrayRef<StringRef> Args = makeArrayRef(Config->Argv).drop_front();
> +  std::string ArgStr = llvm::join(Args, " ");
> +  EBS.Fields.push_back("cwd");
> +  SmallString<64> cwd;
> +  llvm::sys::fs::current_path(cwd);
> +  EBS.Fields.push_back(cwd);
> +  EBS.Fields.push_back("exe");
> +  std::string Exe =
> +      llvm::sys::fs::getMainExecutable(Config->Argv[0].data(), nullptr);
> +  EBS.Fields.push_back(Exe);
> +  EBS.Fields.push_back("pdb");
> +  EBS.Fields.push_back(Path);
> +  EBS.Fields.push_back("cmd");
> +  EBS.Fields.push_back(ArgStr);
> +  Mod.addSymbol(codeview::SymbolSerializer::writeOneSymbol(
> +      ONS, Allocator, CodeViewContainer::Pdb));
> +  Mod.addSymbol(codeview::SymbolSerializer::writeOneSymbol(
> +      CS, Allocator, CodeViewContainer::Pdb));
> +  Mod.addSymbol(codeview::SymbolSerializer::writeOneSymbol(
> +      EBS, Allocator, CodeViewContainer::Pdb));
> +}
> +
>  // Creates a PDB file.
> -void coff::createPDB(StringRef Path, SymbolTable *Symtab,
> -                     ArrayRef<uint8_t> SectionTable,
> +void coff::createPDB(SymbolTable *Symtab, ArrayRef<uint8_t> SectionTable,
>                       const llvm::codeview::DebugInfo *DI) {
>    BumpPtrAllocator Alloc;
>    pdb::PDBFileBuilder Builder(Alloc);
> @@ -413,7 +459,8 @@ void coff::createPDB(StringRef Path, Sym
>    auto &InfoBuilder = Builder.getInfoBuilder();
>    InfoBuilder.setAge(DI ? DI->PDB70.Age : 0);
>
> -  llvm::SmallString<128> NativePath(Path.begin(), Path.end());
> +  llvm::SmallString<128> NativePath(Config->PDBPath.begin(),
> +                                    Config->PDBPath.end());
>    llvm::sys::fs::make_absolute(NativePath);
>    llvm::sys::path::native(NativePath, llvm::sys::path::Style::windows);
>
> @@ -449,11 +496,12 @@ void coff::createPDB(StringRef Path, Sym
>
>    auto &LinkerModule = ExitOnErr(DbiBuilder.addModuleInfo("* Linker *"));
>    LinkerModule.setPdbFilePathNI(PdbFilePathNI);
> +  addLinkerModuleSymbols(NativePath, LinkerModule, Alloc);
>
>    // Add COFF section header stream.
>    ExitOnErr(
>        DbiBuilder.addDbgStream(pdb::DbgHeaderType::SectionHdr,
> SectionTable));
>
>    // Write to a file.
> -  ExitOnErr(Builder.commit(Path));
> +  ExitOnErr(Builder.commit(Config->PDBPath));
>  }
>
> Modified: lld/trunk/COFF/PDB.h
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/COFF/PDB.h?
> rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/COFF/PDB.h (original)
> +++ lld/trunk/COFF/PDB.h Mon Jul 10 14:01:37 2017
> @@ -23,8 +23,7 @@ namespace lld {
>  namespace coff {
>  class SymbolTable;
>
> -void createPDB(llvm::StringRef Path, SymbolTable *Symtab,
> -               llvm::ArrayRef<uint8_t> SectionTable,
> +void createPDB(SymbolTable *Symtab, llvm::ArrayRef<uint8_t> SectionTable,
>                 const llvm::codeview::DebugInfo *DI);
>  }
>  }
>
> Modified: lld/trunk/COFF/Writer.cpp
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/COFF/Writer.
> cpp?rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/COFF/Writer.cpp (original)
> +++ lld/trunk/COFF/Writer.cpp Mon Jul 10 14:01:37 2017
> @@ -239,7 +239,7 @@ void Writer::run() {
>      const llvm::codeview::DebugInfo *DI = nullptr;
>      if (Config->DebugTypes & static_cast<unsigned>(coff::DebugType::CV))
>        DI = BuildId->DI;
> -    createPDB(Config->PDBPath, Symtab, SectionTable, DI);
> +    createPDB(Symtab, SectionTable, DI);
>    }
>
>    writeMapFile(OutputSections);
>
> Modified: lld/trunk/ELF/Config.h
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Config.
> h?rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/ELF/Config.h (original)
> +++ lld/trunk/ELF/Config.h Mon Jul 10 14:01:37 2017
> @@ -97,6 +97,7 @@ struct Configuration {
>    llvm::StringRef ThinLTOCacheDir;
>    std::string Rpath;
>    std::vector<VersionDefinition> VersionDefinitions;
> +  std::vector<llvm::StringRef> Argv;
>    std::vector<llvm::StringRef> AuxiliaryList;
>    std::vector<llvm::StringRef> SearchPaths;
>    std::vector<llvm::StringRef> SymbolOrderingFile;
>
> Modified: lld/trunk/ELF/Driver.cpp
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Driver.
> cpp?rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/ELF/Driver.cpp (original)
> +++ lld/trunk/ELF/Driver.cpp Mon Jul 10 14:01:37 2017
> @@ -74,13 +74,13 @@ bool elf::link(ArrayRef<const char *> Ar
>                 raw_ostream &Error) {
>    ErrorCount = 0;
>    ErrorOS = &Error;
> -  Argv0 = Args[0];
>    InputSections.clear();
>    Tar = nullptr;
>
>    Config = make<Configuration>();
>    Driver = make<LinkerDriver>();
>    Script = make<LinkerScript>();
> +  Config->Argv = {Args.begin(), Args.end()};
>
>    Driver->main(Args, CanExitEarly);
>    freeArena();
>
> Modified: lld/trunk/ELF/Error.cpp
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Error.
> cpp?rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/ELF/Error.cpp (original)
> +++ lld/trunk/ELF/Error.cpp Mon Jul 10 14:01:37 2017
> @@ -27,7 +27,6 @@ using namespace lld::elf;
>
>  uint64_t elf::ErrorCount;
>  raw_ostream *elf::ErrorOS;
> -StringRef elf::Argv0;
>
>  // The functions defined in this file can be called from multiple threads,
>  // but outs() or errs() are not thread-safe. We protect them using a
> mutex.
> @@ -46,7 +45,7 @@ static void newline(const Twine &Msg) {
>  }
>
>  static void print(StringRef S, raw_ostream::Colors C) {
> -  *ErrorOS << Argv0 + ": ";
> +  *ErrorOS << Config->Argv[0] << ": ";
>    if (Config->ColorDiagnostics) {
>      ErrorOS->changeColor(C, true);
>      *ErrorOS << S;
> @@ -59,7 +58,7 @@ static void print(StringRef S, raw_ostre
>  void elf::log(const Twine &Msg) {
>    if (Config->Verbose) {
>      std::lock_guard<std::mutex> Lock(Mu);
> -    outs() << Argv0 << ": " << Msg << "\n";
> +    outs() << Config->Argv[0] << ": " << Msg << "\n";
>      outs().flush();
>    }
>  }
>
> Modified: lld/trunk/ELF/Error.h
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Error.h?
> rev=307590&r1=307589&r2=307590&view=diff
> ============================================================
> ==================
> --- lld/trunk/ELF/Error.h (original)
> +++ lld/trunk/ELF/Error.h Mon Jul 10 14:01:37 2017
> @@ -37,7 +37,6 @@ namespace elf {
>
>  extern uint64_t ErrorCount;
>  extern llvm::raw_ostream *ErrorOS;
> -extern llvm::StringRef Argv0;
>
>  void log(const Twine &Msg);
>  void message(const Twine &Msg);
>
> Added: lld/trunk/test/COFF/pdb-linker-module.test
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/COFF/
> pdb-linker-module.test?rev=307590&view=auto
> ============================================================
> ==================
> --- lld/trunk/test/COFF/pdb-linker-module.test (added)
> +++ lld/trunk/test/COFF/pdb-linker-module.test Mon Jul 10 14:01:37 2017
> @@ -0,0 +1,18 @@
> +RUN: lld-link /debug /pdb:%t.pdb /nodefaultlib /entry:main
> %S/Inputs/pdb-diff.obj
> +RUN: llvm-pdbutil dump -modules -symbols %t.pdb | FileCheck %s
> +
> +CHECK:      Mod 0001 | `* Linker *`:
> +CHECK-NEXT:  4 | S_OBJNAME [size = 20] sig=0, `* Linker *`
> +CHECK-NEXT: 24 | S_COMPILE3 [size = 40]
> +CHECK-NEXT:      machine = intel 80386, Ver = LLVM Linker, language = link
> +CHECK-NEXT:      frontend = 0.0.0.0, backend = 0.0.0.0
> +CHECK-NEXT:      flags = none
> +CHECK-NEXT: 64 | S_ENVBLOCK
> +CHECK-NEXT: - cwd
> +CHECK-NEXT: -
> +CHECK-NEXT: - exe
> +CHECK-NEXT: - {{.*}}lld-link
> +CHECK-NEXT: - pdb
> +CHECK-NEXT: - {{.*}}pdb-linker-module{{.*}}pdb
> +CHECK-NEXT: - cmd
> +CHECK-NEXT: - /debug /pdb:{{.*}}pdb-linker-module{{.*}}pdb /nodefaultlib
> /entry:main {{.*}}pdb-diff.obj
>
>
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