r261552 - [VFS] Add 'overlay-relative' field to YAML files

Sean Silva via cfe-commits cfe-commits at lists.llvm.org
Mon Feb 22 19:08:20 PST 2016


The bot is still red:
http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast

On Mon, Feb 22, 2016 at 6:48 PM, Bruno Cardoso Lopes <
bruno.cardoso at gmail.com> wrote:

> Hi Sean,
>
> This is hopefully fixed in r261556.
>
> On Mon, Feb 22, 2016 at 5:45 PM, Sean Silva <chisophugis at gmail.com> wrote:
> > This or r261551 seem to be causing a build failure:
> >
> http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/527
> >
> > -- Sean SIlva
> >
> > On Mon, Feb 22, 2016 at 10:41 AM, Bruno Cardoso Lopes via cfe-commits
> > <cfe-commits at lists.llvm.org> wrote:
> >>
> >> Author: bruno
> >> Date: Mon Feb 22 12:41:09 2016
> >> New Revision: 261552
> >>
> >> URL: http://llvm.org/viewvc/llvm-project?rev=261552&view=rev
> >> Log:
> >> [VFS] Add 'overlay-relative' field to YAML files
> >>
> >> The VFS overlay mapping between virtual paths and real paths is done
> >> through
> >> the 'external-contents' entries in YAML files, which contains hardcoded
> >> paths
> >> to the real files.
> >>
> >> When a module compilation crashes, headers are dumped into
> >> <name>.cache/vfs
> >> directory and are mapped via the <name>.cache/vfs/vfs.yaml. The script
> >> generated for reproduction uses -ivfsoverlay pointing to file to gather
> >> the
> >> mapping between virtual paths and files inside <name>.cache/vfs.
> >> Currently, we
> >> are only capable of reproducing such crashes in the same machine as they
> >> happen, because of the hardcoded paths in 'external-contents'.
> >>
> >> To be able to reproduce a crash in another machine, this patch
> introduces
> >> a new
> >> option in the VFS yaml file called 'overlay-relative'. When it's equal
> to
> >> 'true' it means that the provided path to the YAML file through the
> >> -ivfsoverlay option should also be used to prefix the final path for
> every
> >> 'external-contents'.
> >>
> >> Example, given the invocation snippet "... -ivfsoverlay
> >> <name>.cache/vfs/vfs.yaml" and the following entry in the yaml file:
> >>
> >> "overlay-relative": "true",
> >> "roots": [
> >> ...
> >>   "type": "directory",
> >>   "name": "/usr/include",
> >>   "contents": [
> >>     {
> >>       "type": "file",
> >>       "name": "stdio.h",
> >>       "external-contents": "/usr/include/stdio.h"
> >>     },
> >> ...
> >>
> >> Here, a file manager request for virtual "/usr/include/stdio.h", that
> will
> >> map
> >> into real path
> "/<absolute_path_to>/<name>.cache/vfs/usr/include/stdio.h.
> >>
> >> This is a useful feature for debugging module crashes in machines other
> >> than
> >> the one where the error happened.
> >>
> >> Differential Revision: http://reviews.llvm.org/D17457
> >>
> >> rdar://problem/24499339
> >>
> >> Added:
> >>     cfe/trunk/test/Modules/crash-vfs-relative-overlay.m
> >>       - copied, changed from r261551,
> >> cfe/trunk/test/Modules/crash-vfs-path-traversal.m
> >> Modified:
> >>     cfe/trunk/include/clang/Basic/VirtualFileSystem.h
> >>     cfe/trunk/lib/Basic/VirtualFileSystem.cpp
> >>     cfe/trunk/lib/Frontend/CompilerInvocation.cpp
> >>     cfe/trunk/lib/Frontend/ModuleDependencyCollector.cpp
> >>     cfe/trunk/test/Modules/crash-vfs-path-symlink-component.m
> >>     cfe/trunk/test/Modules/crash-vfs-path-traversal.m
> >>
> >> Modified: cfe/trunk/include/clang/Basic/VirtualFileSystem.h
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/VirtualFileSystem.h?rev=261552&r1=261551&r2=261552&view=diff
> >>
> >>
> ==============================================================================
> >> --- cfe/trunk/include/clang/Basic/VirtualFileSystem.h (original)
> >> +++ cfe/trunk/include/clang/Basic/VirtualFileSystem.h Mon Feb 22
> 12:41:09
> >> 2016
> >> @@ -310,6 +310,7 @@ llvm::sys::fs::UniqueID getNextVirtualUn
> >>  IntrusiveRefCntPtr<FileSystem>
> >>  getVFSFromYAML(std::unique_ptr<llvm::MemoryBuffer> Buffer,
> >>                 llvm::SourceMgr::DiagHandlerTy DiagHandler,
> >> +               StringRef YAMLFilePath,
> >>                 void *DiagContext = nullptr,
> >>                 IntrusiveRefCntPtr<FileSystem> ExternalFS =
> >> getRealFileSystem());
> >>
> >> @@ -323,6 +324,8 @@ struct YAMLVFSEntry {
> >>  class YAMLVFSWriter {
> >>    std::vector<YAMLVFSEntry> Mappings;
> >>    Optional<bool> IsCaseSensitive;
> >> +  Optional<bool> IsOverlayRelative;
> >> +  std::string OverlayDir;
> >>
> >>  public:
> >>    YAMLVFSWriter() {}
> >> @@ -330,6 +333,11 @@ public:
> >>    void setCaseSensitivity(bool CaseSensitive) {
> >>      IsCaseSensitive = CaseSensitive;
> >>    }
> >> +  void setOverlayDir(StringRef OverlayDirectory) {
> >> +    IsOverlayRelative = true;
> >> +    OverlayDir.assign(OverlayDirectory.str());
> >> +  }
> >> +
> >>    void write(llvm::raw_ostream &OS);
> >>  };
> >>
> >>
> >> Modified: cfe/trunk/lib/Basic/VirtualFileSystem.cpp
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/VirtualFileSystem.cpp?rev=261552&r1=261551&r2=261552&view=diff
> >>
> >>
> ==============================================================================
> >> --- cfe/trunk/lib/Basic/VirtualFileSystem.cpp (original)
> >> +++ cfe/trunk/lib/Basic/VirtualFileSystem.cpp Mon Feb 22 12:41:09 2016
> >> @@ -790,6 +790,7 @@ public:
> >>  /// All configuration options are optional.
> >>  ///   'case-sensitive': <boolean, default=true>
> >>  ///   'use-external-names': <boolean, default=true>
> >> +///   'overlay-relative': <boolean, default=false>
> >>  ///
> >>  /// Virtual directories are represented as
> >>  /// \verbatim
> >> @@ -832,6 +833,10 @@ class RedirectingFileSystem : public vfs
> >>    std::vector<std::unique_ptr<Entry>> Roots;
> >>    /// \brief The file system to use for external references.
> >>    IntrusiveRefCntPtr<FileSystem> ExternalFS;
> >> +  /// If IsRelativeOverlay is set, this represents the directory
> >> +  /// path that should be prefixed to each 'external-contents' entry
> >> +  /// when reading from YAML files.
> >> +  std::string ExternalContentsPrefixDir;
> >>
> >>    /// @name Configuration
> >>    /// @{
> >> @@ -841,6 +846,10 @@ class RedirectingFileSystem : public vfs
> >>    /// Currently, case-insensitive matching only works correctly with
> >> ASCII.
> >>    bool CaseSensitive;
> >>
> >> +  /// IsRelativeOverlay marks whether a IsExternalContentsPrefixDir
> path
> >> must
> >> +  /// be prefixed in every 'external-contents' when reading from YAML
> >> files.
> >> +  bool IsRelativeOverlay = false;
> >> +
> >>    /// \brief Whether to use to use the value of 'external-contents' for
> >> the
> >>    /// names of files.  This global value is overridable on a per-file
> >> basis.
> >>    bool UseExternalNames;
> >> @@ -868,8 +877,8 @@ public:
> >>    /// returns a virtual file system representing its contents.
> >>    static RedirectingFileSystem *
> >>    create(std::unique_ptr<MemoryBuffer> Buffer,
> >> -         SourceMgr::DiagHandlerTy DiagHandler, void *DiagContext,
> >> -         IntrusiveRefCntPtr<FileSystem> ExternalFS);
> >> +         SourceMgr::DiagHandlerTy DiagHandler, StringRef YAMLFilePath,
> >> +         void *DiagContext, IntrusiveRefCntPtr<FileSystem> ExternalFS);
> >>
> >>    ErrorOr<Status> status(const Twine &Path) override;
> >>    ErrorOr<std::unique_ptr<File>> openFileForRead(const Twine &Path)
> >> override;
> >> @@ -902,6 +911,15 @@ public:
> >>      return
> >> directory_iterator(std::make_shared<VFSFromYamlDirIterImpl>(Dir,
> >>          *this, D->contents_begin(), D->contents_end(), EC));
> >>    }
> >> +
> >> +  void setExternalContentsPrefixDir(StringRef PrefixDir) {
> >> +    ExternalContentsPrefixDir = PrefixDir.str();
> >> +  }
> >> +
> >> +  StringRef getExternalContentsPrefixDir() const {
> >> +    return ExternalContentsPrefixDir;
> >> +  }
> >> +
> >>  };
> >>
> >>  /// \brief A helper class to hold the common YAML parsing state.
> >> @@ -981,7 +999,7 @@ class RedirectingFileSystemParser {
> >>      return true;
> >>    }
> >>
> >> -  std::unique_ptr<Entry> parseEntry(yaml::Node *N) {
> >> +  std::unique_ptr<Entry> parseEntry(yaml::Node *N,
> RedirectingFileSystem
> >> *FS) {
> >>      yaml::MappingNode *M = dyn_cast<yaml::MappingNode>(N);
> >>      if (!M) {
> >>        error(N, "expected mapping node for file or directory entry");
> >> @@ -1057,7 +1075,7 @@ class RedirectingFileSystemParser {
> >>          for (yaml::SequenceNode::iterator I = Contents->begin(),
> >>                                            E = Contents->end();
> >>               I != E; ++I) {
> >> -          if (std::unique_ptr<Entry> E = parseEntry(&*I))
> >> +          if (std::unique_ptr<Entry> E = parseEntry(&*I, FS))
> >>              EntryArrayContents.push_back(std::move(E));
> >>            else
> >>              return nullptr;
> >> @@ -1071,12 +1089,22 @@ class RedirectingFileSystemParser {
> >>          HasContents = true;
> >>          if (!parseScalarString(I->getValue(), Value, Buffer))
> >>            return nullptr;
> >> -        SmallString<256> Path(Value);
> >> +
> >> +        SmallString<128> FullPath;
> >> +        if (FS->IsRelativeOverlay) {
> >> +          FullPath = FS->getExternalContentsPrefixDir();
> >> +          assert(!FullPath.empty() &&
> >> +                 "External contents prefix directory must exist");
> >> +          llvm::sys::path::append(FullPath, Value);
> >> +        } else {
> >> +          FullPath = Value;
> >> +        }
> >> +
> >>          // Guarantee that old YAML files containing paths with ".." and
> >> "." are
> >>          // properly canonicalized before read into the VFS.
> >> -        Path = sys::path::remove_leading_dotslash(Path);
> >> -        sys::path::remove_dots(Path, /*remove_dot_dot=*/true);
> >> -        ExternalContentsPath = Path.str();
> >> +        FullPath = sys::path::remove_leading_dotslash(FullPath);
> >> +        sys::path::remove_dots(FullPath, /*remove_dot_dot=*/true);
> >> +        ExternalContentsPath = FullPath.str();
> >>        } else if (Key == "use-external-name") {
> >>          bool Val;
> >>          if (!parseScalarBool(I->getValue(), Val))
> >> @@ -1162,6 +1190,7 @@ public:
> >>        KeyStatusPair("version", true),
> >>        KeyStatusPair("case-sensitive", false),
> >>        KeyStatusPair("use-external-names", false),
> >> +      KeyStatusPair("overlay-relative", false),
> >>        KeyStatusPair("roots", true),
> >>      };
> >>
> >> @@ -1187,7 +1216,7 @@ public:
> >>
> >>          for (yaml::SequenceNode::iterator I = Roots->begin(), E =
> >> Roots->end();
> >>               I != E; ++I) {
> >> -          if (std::unique_ptr<Entry> E = parseEntry(&*I))
> >> +          if (std::unique_ptr<Entry> E = parseEntry(&*I, FS))
> >>              FS->Roots.push_back(std::move(E));
> >>            else
> >>              return false;
> >> @@ -1213,6 +1242,9 @@ public:
> >>        } else if (Key == "case-sensitive") {
> >>          if (!parseScalarBool(I->getValue(), FS->CaseSensitive))
> >>            return false;
> >> +      } else if (Key == "overlay-relative") {
> >> +        if (!parseScalarBool(I->getValue(), FS->IsRelativeOverlay))
> >> +          return false;
> >>        } else if (Key == "use-external-names") {
> >>          if (!parseScalarBool(I->getValue(), FS->UseExternalNames))
> >>            return false;
> >> @@ -1233,9 +1265,11 @@ public:
> >>
> >>  Entry::~Entry() = default;
> >>
> >> -RedirectingFileSystem *RedirectingFileSystem::create(
> >> -    std::unique_ptr<MemoryBuffer> Buffer, SourceMgr::DiagHandlerTy
> >> DiagHandler,
> >> -    void *DiagContext, IntrusiveRefCntPtr<FileSystem> ExternalFS) {
> >> +RedirectingFileSystem *
> >> +RedirectingFileSystem::create(std::unique_ptr<MemoryBuffer> Buffer,
> >> +                              SourceMgr::DiagHandlerTy DiagHandler,
> >> +                              StringRef YAMLFilePath, void
> *DiagContext,
> >> +                              IntrusiveRefCntPtr<FileSystem>
> ExternalFS)
> >> {
> >>
> >>    SourceMgr SM;
> >>    yaml::Stream Stream(Buffer->getMemBufferRef(), SM);
> >> @@ -1252,6 +1286,23 @@ RedirectingFileSystem *RedirectingFileSy
> >>
> >>    std::unique_ptr<RedirectingFileSystem> FS(
> >>        new RedirectingFileSystem(ExternalFS));
> >> +
> >> +  if (!YAMLFilePath.empty()) {
> >> +    // Use the YAML path from -ivfsoverlay to compute the dir to be
> >> prefixed
> >> +    // to each 'external-contents' path.
> >> +    //
> >> +    // Example:
> >> +    //    -ivfsoverlay dummy.cache/vfs/vfs.yaml
> >> +    // yields:
> >> +    //  FS->ExternalContentsPrefixDir =>
> >> /<absolute_path_to>/dummy.cache/vfs
> >> +    //
> >> +    SmallString<256> OverlayAbsDir =
> >> sys::path::parent_path(YAMLFilePath);
> >> +    std::error_code EC = llvm::sys::fs::make_absolute(OverlayAbsDir);
> >> +    assert(!EC && "Overlay dir final path must be absolute");
> >> +    (void)EC;
> >> +    FS->setExternalContentsPrefixDir(OverlayAbsDir);
> >> +  }
> >> +
> >>    if (!P.parse(Root, FS.get()))
> >>      return nullptr;
> >>
> >> @@ -1396,10 +1447,12 @@ RedirectingFileSystem::openFileForRead(c
> >>
> >>  IntrusiveRefCntPtr<FileSystem>
> >>  vfs::getVFSFromYAML(std::unique_ptr<MemoryBuffer> Buffer,
> >> -                    SourceMgr::DiagHandlerTy DiagHandler, void
> >> *DiagContext,
> >> +                    SourceMgr::DiagHandlerTy DiagHandler,
> >> +                    StringRef YAMLFilePath,
> >> +                    void *DiagContext,
> >>                      IntrusiveRefCntPtr<FileSystem> ExternalFS) {
> >>    return RedirectingFileSystem::create(std::move(Buffer), DiagHandler,
> >> -                                       DiagContext, ExternalFS);
> >> +                                       YAMLFilePath, DiagContext,
> >> ExternalFS);
> >>  }
> >>
> >>  UniqueID vfs::getNextVirtualUniqueID() {
> >> @@ -1431,7 +1484,8 @@ class JSONWriter {
> >>
> >>  public:
> >>    JSONWriter(llvm::raw_ostream &OS) : OS(OS) {}
> >> -  void write(ArrayRef<YAMLVFSEntry> Entries, Optional<bool>
> >> IsCaseSensitive);
> >> +  void write(ArrayRef<YAMLVFSEntry> Entries, Optional<bool>
> >> IsCaseSensitive,
> >> +             Optional<bool> IsOverlayRelative, StringRef OverlayDir);
> >>  };
> >>  }
> >>
> >> @@ -1484,7 +1538,9 @@ void JSONWriter::writeEntry(StringRef VP
> >>  }
> >>
> >>  void JSONWriter::write(ArrayRef<YAMLVFSEntry> Entries,
> >> -                       Optional<bool> IsCaseSensitive) {
> >> +                       Optional<bool> IsCaseSensitive,
> >> +                       Optional<bool> IsOverlayRelative,
> >> +                       StringRef OverlayDir) {
> >>    using namespace llvm::sys;
> >>
> >>    OS << "{\n"
> >> @@ -1492,12 +1548,27 @@ void JSONWriter::write(ArrayRef<YAMLVFSE
> >>    if (IsCaseSensitive.hasValue())
> >>      OS << "  'case-sensitive': '"
> >>         << (IsCaseSensitive.getValue() ? "true" : "false") << "',\n";
> >> +  bool UseOverlayRelative = false;
> >> +  if (IsOverlayRelative.hasValue()) {
> >> +    UseOverlayRelative = IsOverlayRelative.getValue();
> >> +    OS << "  'overlay-relative': '"
> >> +       << (UseOverlayRelative ? "true" : "false") << "',\n";
> >> +  }
> >>    OS << "  'roots': [\n";
> >>
> >>    if (!Entries.empty()) {
> >>      const YAMLVFSEntry &Entry = Entries.front();
> >>      startDirectory(path::parent_path(Entry.VPath));
> >> -    writeEntry(path::filename(Entry.VPath), Entry.RPath);
> >> +
> >> +    StringRef RPath = Entry.RPath;
> >> +    if (UseOverlayRelative) {
> >> +      unsigned OverlayDirLen = OverlayDir.size();
> >> +      assert(RPath.substr(0, OverlayDirLen) == OverlayDir &&
> >> +             "Overlay dir must be contained in RPath");
> >> +      RPath = RPath.slice(OverlayDirLen, RPath.size());
> >> +    }
> >> +
> >> +    writeEntry(path::filename(Entry.VPath), RPath);
> >>
> >>      for (const auto &Entry : Entries.slice(1)) {
> >>        StringRef Dir = path::parent_path(Entry.VPath);
> >> @@ -1511,7 +1582,14 @@ void JSONWriter::write(ArrayRef<YAMLVFSE
> >>          OS << ",\n";
> >>          startDirectory(Dir);
> >>        }
> >> -      writeEntry(path::filename(Entry.VPath), Entry.RPath);
> >> +      StringRef RPath = Entry.RPath;
> >> +      if (UseOverlayRelative) {
> >> +        unsigned OverlayDirLen = OverlayDir.size();
> >> +        assert(RPath.substr(0, OverlayDirLen) == OverlayDir &&
> >> +               "Overlay dir must be contained in RPath");
> >> +        RPath = RPath.slice(OverlayDirLen, RPath.size());
> >> +      }
> >> +      writeEntry(path::filename(Entry.VPath), RPath);
> >>      }
> >>
> >>      while (!DirStack.empty()) {
> >> @@ -1531,7 +1609,8 @@ void YAMLVFSWriter::write(llvm::raw_ostr
> >>      return LHS.VPath < RHS.VPath;
> >>    });
> >>
> >> -  JSONWriter(OS).write(Mappings, IsCaseSensitive);
> >> +  JSONWriter(OS).write(Mappings, IsCaseSensitive, IsOverlayRelative,
> >> +                       OverlayDir);
> >>  }
> >>
> >>  VFSFromYamlDirIterImpl::VFSFromYamlDirIterImpl(
> >>
> >> Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=261552&r1=261551&r2=261552&view=diff
> >>
> >>
> ==============================================================================
> >> --- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
> >> +++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Mon Feb 22 12:41:09
> 2016
> >> @@ -2344,8 +2344,8 @@ createVFSFromCompilerInvocation(const Co
> >>        return IntrusiveRefCntPtr<vfs::FileSystem>();
> >>      }
> >>
> >> -    IntrusiveRefCntPtr<vfs::FileSystem> FS =
> >> -        vfs::getVFSFromYAML(std::move(Buffer.get()), /*DiagHandler*/
> >> nullptr);
> >> +    IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML(
> >> +        std::move(Buffer.get()), /*DiagHandler*/ nullptr, File);
> >>      if (!FS.get()) {
> >>        Diags.Report(diag::err_invalid_vfs_overlay) << File;
> >>        return IntrusiveRefCntPtr<vfs::FileSystem>();
> >>
> >> Modified: cfe/trunk/lib/Frontend/ModuleDependencyCollector.cpp
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/ModuleDependencyCollector.cpp?rev=261552&r1=261551&r2=261552&view=diff
> >>
> >>
> ==============================================================================
> >> --- cfe/trunk/lib/Frontend/ModuleDependencyCollector.cpp (original)
> >> +++ cfe/trunk/lib/Frontend/ModuleDependencyCollector.cpp Mon Feb 22
> >> 12:41:09 2016
> >> @@ -51,6 +51,10 @@ void ModuleDependencyCollector::writeFil
> >>    SmallString<256> Dest = getDest();
> >>    llvm::sys::path::append(Dest, "vfs.yaml");
> >>
> >> +  // Default to use relative overlay directories in the VFS yaml file.
> >> This
> >> +  // allows crash reproducer scripts to work across machines.
> >> +  VFSWriter.setOverlayDir(getDest());
> >> +
> >>    std::error_code EC;
> >>    llvm::raw_fd_ostream OS(Dest, EC, llvm::sys::fs::F_Text);
> >>    if (EC) {
> >>
> >> Modified: cfe/trunk/test/Modules/crash-vfs-path-symlink-component.m
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Modules/crash-vfs-path-symlink-component.m?rev=261552&r1=261551&r2=261552&view=diff
> >>
> >>
> ==============================================================================
> >> --- cfe/trunk/test/Modules/crash-vfs-path-symlink-component.m (original)
> >> +++ cfe/trunk/test/Modules/crash-vfs-path-symlink-component.m Mon Feb 22
> >> 12:41:09 2016
> >> @@ -40,21 +40,21 @@
> >>  // CHECKSH: "-ivfsoverlay" "crash-vfs-{{[^ ]*}}.cache/vfs/vfs.yaml"
> >>
> >>  // CHECKYAML: 'type': 'directory'
> >> -// CHECKYAML: 'name': "{{[^ ]*}}/i/usr/include",
> >> +// CHECKYAML: 'name': "/[[PATH:.*]]/i/usr/include",
> >>  // CHECKYAML-NEXT: 'contents': [
> >>  // CHECKYAML-NEXT:   {
> >>  // CHECKYAML-NEXT:     'type': 'file',
> >>  // CHECKYAML-NEXT:     'name': "module.map",
> >> -// CHECKYAML-NEXT:     'external-contents': "{{[^ ]*}}.cache/vfs/{{[^
> >> ]*}}/i/usr/include/module.map"
> >> +// CHECKYAML-NEXT:     'external-contents':
> >> "/[[PATH]]/i/usr/include/module.map"
> >>  // CHECKYAML-NEXT:   },
> >>
> >>  // CHECKYAML: 'type': 'directory'
> >> -// CHECKYAML: 'name': "{{[^ ]*}}/i/usr",
> >> +// CHECKYAML: 'name': "/[[PATH]]/i/usr",
> >>  // CHECKYAML-NEXT: 'contents': [
> >>  // CHECKYAML-NEXT:   {
> >>  // CHECKYAML-NEXT:     'type': 'file',
> >>  // CHECKYAML-NEXT:     'name': "module.map",
> >> -// CHECKYAML-NEXT:     'external-contents': "{{[^ ]*}}.cache/vfs/{{[^
> >> ]*}}/i/usr/include/module.map"
> >> +// CHECKYAML-NEXT:     'external-contents':
> >> "/[[PATH]]/i/usr/include/module.map"
> >>  // CHECKYAML-NEXT:   },
> >>
> >>  // Test that by using the previous generated YAML file clang is able to
> >> find the
> >>
> >> Modified: cfe/trunk/test/Modules/crash-vfs-path-traversal.m
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Modules/crash-vfs-path-traversal.m?rev=261552&r1=261551&r2=261552&view=diff
> >>
> >>
> ==============================================================================
> >> --- cfe/trunk/test/Modules/crash-vfs-path-traversal.m (original)
> >> +++ cfe/trunk/test/Modules/crash-vfs-path-traversal.m Mon Feb 22
> 12:41:09
> >> 2016
> >> @@ -35,12 +35,12 @@
> >>  // CHECKSH: "-ivfsoverlay" "crash-vfs-{{[^ ]*}}.cache/vfs/vfs.yaml"
> >>
> >>  // CHECKYAML: 'type': 'directory'
> >> -// CHECKYAML: 'name': "{{[^ ]*}}/Inputs/System/usr/include",
> >> +// CHECKYAML: 'name': "/[[PATH:.*]]/Inputs/System/usr/include",
> >>  // CHECKYAML-NEXT: 'contents': [
> >>  // CHECKYAML-NEXT:   {
> >>  // CHECKYAML-NEXT:     'type': 'file',
> >>  // CHECKYAML-NEXT:     'name': "module.map",
> >> -// CHECKYAML-NEXT:     'external-contents': "{{[^
> >> ]*}}/Inputs/System/usr/include/module.map"
> >> +// CHECKYAML-NEXT:     'external-contents':
> >> "/[[PATH]]/Inputs/System/usr/include/module.map"
> >>  // CHECKYAML-NEXT:   },
> >>
> >>  // Replace the paths in the YAML files with relative ".." traversals
> >> @@ -49,9 +49,10 @@
> >>
> >>  // RUN: sed -e "s at usr/include at usr/include/../include at g" \
> >>  // RUN:     %t/crash-vfs-*.cache/vfs/vfs.yaml > %t/vfs.yaml
> >> +// RUN: cp %t/vfs.yaml %t/crash-vfs-*.cache/vfs/vfs.yaml
> >>  // RUN: unset FORCE_CLANG_DIAGNOSTICS_CRASH
> >>  // RUN: %clang -E %s -I %S/Inputs/System -isysroot %/t/i/ \
> >> -// RUN:     -ivfsoverlay %t/vfs.yaml -fmodules \
> >> +// RUN:     -ivfsoverlay %t/crash-vfs-*.cache/vfs/vfs.yaml -fmodules \
> >>  // RUN:     -fmodules-cache-path=%t/m/ 2>&1 \
> >>  // RUN:     | FileCheck %s --check-prefix=CHECKOVERLAY
> >>
> >>
> >> Copied: cfe/trunk/test/Modules/crash-vfs-relative-overlay.m (from
> r261551,
> >> cfe/trunk/test/Modules/crash-vfs-path-traversal.m)
> >> URL:
> >>
> http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Modules/crash-vfs-relative-overlay.m?p2=cfe/trunk/test/Modules/crash-vfs-relative-overlay.m&p1=cfe/trunk/test/Modules/crash-vfs-path-traversal.m&r1=261551&r2=261552&rev=261552&view=diff
> >>
> >>
> ==============================================================================
> >> --- cfe/trunk/test/Modules/crash-vfs-path-traversal.m (original)
> >> +++ cfe/trunk/test/Modules/crash-vfs-relative-overlay.m Mon Feb 22
> >> 12:41:09 2016
> >> @@ -17,7 +17,7 @@
> >>  // RUN: find %t/crash-vfs-*.cache/vfs | \
> >>  // RUN:   grep "Inputs/System/usr/include/stdio.h" | count 1
> >>
> >> -#include "usr/././//////include/../include/./././../include/stdio.h"
> >> +#include "usr/include/stdio.h"
> >>
> >>  // CHECK: Preprocessed source(s) and associated run script(s) are
> located
> >> at:
> >>  // CHECK-NEXT: note: diagnostic msg: {{.*}}.m
> >> @@ -35,23 +35,21 @@
> >>  // CHECKSH: "-ivfsoverlay" "crash-vfs-{{[^ ]*}}.cache/vfs/vfs.yaml"
> >>
> >>  // CHECKYAML: 'type': 'directory'
> >> -// CHECKYAML: 'name': "{{[^ ]*}}/Inputs/System/usr/include",
> >> +// CHECKYAML: 'name': "/[[PATH:.*]]/Inputs/System/usr/include",
> >>  // CHECKYAML-NEXT: 'contents': [
> >>  // CHECKYAML-NEXT:   {
> >>  // CHECKYAML-NEXT:     'type': 'file',
> >>  // CHECKYAML-NEXT:     'name': "module.map",
> >> -// CHECKYAML-NEXT:     'external-contents': "{{[^
> >> ]*}}/Inputs/System/usr/include/module.map"
> >> +// CHECKYAML-NOT:      'external-contents': "{{[^ ]*}}.cache
> >> +// CHECKYAML-NEXT:     'external-contents':
> >> "/[[PATH]]/Inputs/System/usr/include/module.map"
> >>  // CHECKYAML-NEXT:   },
> >>
> >> -// Replace the paths in the YAML files with relative ".." traversals
> >> -// and fed into clang to test whether we're correctly representing them
> >> -// in the VFS overlay.
> >> +// Test that reading the YAML file will yield the correct path after
> >> +// the overlay dir is prefixed to access headers in .cache/vfs
> directory.
> >>
> >> -// RUN: sed -e "s at usr/include at usr/include/../include at g" \
> >> -// RUN:     %t/crash-vfs-*.cache/vfs/vfs.yaml > %t/vfs.yaml
> >>  // RUN: unset FORCE_CLANG_DIAGNOSTICS_CRASH
> >>  // RUN: %clang -E %s -I %S/Inputs/System -isysroot %/t/i/ \
> >> -// RUN:     -ivfsoverlay %t/vfs.yaml -fmodules \
> >> +// RUN:     -ivfsoverlay %t/crash-vfs-*.cache/vfs/vfs.yaml -fmodules \
> >>  // RUN:     -fmodules-cache-path=%t/m/ 2>&1 \
> >>  // RUN:     | FileCheck %s --check-prefix=CHECKOVERLAY
> >>
> >>
> >>
> >> _______________________________________________
> >> cfe-commits mailing list
> >> cfe-commits at lists.llvm.org
> >> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
> >
> >
>
>
>
> --
> Bruno Cardoso Lopes
> http://www.brunocardoso.cc
>
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