kc3-lang/angle/src/common/system_utils.h

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• Hash : ffb71dc2
  Author :
  Date : 2021-05-18T15:10:58
  

  Revert "Reland Change to module directory when loading swiftshader ICD."
  
  This reverts commit c8c414b084fa3b6550b10dff48cf429719e04579.
  
  Reason for revert: Breaking fuchsia_x64 and ANGLE autoroller
  
  Original change's description:
  > Reland Change to module directory when loading swiftshader ICD.
  >
  > This is a reland of commit 3b10dda6a479612a07673b5c87d3560e0941d41b.
  >
  > Extra changes:
  > Be explicit about calling GetModuleHandleA
  > Do not use the general GetModuleHandle, which may use wide strings
  >
  > GetModuleDirectory should return the full path, not relative.
  > ANGLE wasn't able to locate the vulkan ICD file because it was
  > searching down an invalid relative path. This can be fixed by
  > ensuring the module directory is always the full path.
  > on some platforms.
  >
  > Original change's description:
  > > When loading vulkan, we can be running from any directory. We need
  > > to change to the module directory to ensure the swiftshader ICD is
  > > loaded properly. For example, in some Chrome releases, libGLESv2.dll
  > > and libvk_swiftshader.dll are in a subdirectory relative to chrome.exe
  > >
  > > Bug: chromium:1198567
  > > Change-Id: I9e68927e512b239728fb2903d1a04702508a4948
  > > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2873452
  > > Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
  > > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  > > Reviewed-by: Jamie Madill <jmadill@chromium.org>
  >
  > Bug: chromium:1198567
  > Bug: angleproject:5949
  > Change-Id: Ib34067002c788f00b5ae2fa11d1e465f57bd7be8
  > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2893503
  > Reviewed-by: Jamie Madill <jmadill@chromium.org>
  > Reviewed-by: Cody Northrop <cnorthrop@google.com>
  > Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
  
  Bug: chromium:1198567
  Bug: angleproject:5949
  Change-Id: Ic0be8949cc27b231be4f982ea6e22beed590d24d
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2903786
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/common/system_utils.h

• //
  // Copyright 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // system_utils.h: declaration of OS-specific utility functions
  
  #ifndef COMMON_SYSTEM_UTILS_H_
  #define COMMON_SYSTEM_UTILS_H_
  
  #include "common/Optional.h"
  #include "common/angleutils.h"
  
  #include <string>
  
  namespace angle
  {
  std::string GetExecutableName();
  std::string GetExecutablePath();
  std::string GetExecutableDirectory();
  std::string GetHelperExecutableDir();
  const char *GetSharedLibraryExtension();
  const char *GetExecutableExtension();
  char GetPathSeparator();
  Optional<std::string> GetCWD();
  bool SetCWD(const char *dirName);
  bool SetEnvironmentVar(const char *variableName, const char *value);
  bool UnsetEnvironmentVar(const char *variableName);
  std::string GetEnvironmentVar(const char *variableName);
  std::string GetEnvironmentVarOrUnCachedAndroidProperty(const char *variableName,
                                                         const char *propertyName);
  std::string GetEnvironmentVarOrAndroidProperty(const char *variableName, const char *propertyName);
  const char *GetPathSeparatorForEnvironmentVar();
  bool PrependPathToEnvironmentVar(const char *variableName, const char *path);
  bool IsDirectory(const char *filename);
  
  // Get absolute time in seconds.  Use this function to get an absolute time with an unknown origin.
  double GetCurrentTime();
  
  // Run an application and get the output.  Gets a nullptr-terminated set of args to execute the
  // application with, and returns the stdout and stderr outputs as well as the exit code.
  //
  // Pass nullptr for stdoutOut/stderrOut if you don't need to capture. exitCodeOut is required.
  //
  // Returns false if it fails to actually execute the application.
  bool RunApp(const std::vector<const char *> &args,
              std::string *stdoutOut,
              std::string *stderrOut,
              int *exitCodeOut);
  
  class Library : angle::NonCopyable
  {
    public:
      virtual ~Library() {}
      virtual void *getSymbol(const char *symbolName) = 0;
      virtual void *getNative() const                 = 0;
  
      template <typename FuncT>
      void getAs(const char *symbolName, FuncT *funcOut)
      {
          *funcOut = reinterpret_cast<FuncT>(getSymbol(symbolName));
      }
  };
  
  // Use SYSTEM_DIR to bypass loading ANGLE libraries with the same name as system DLLS
  // (e.g. opengl32.dll)
  enum class SearchType
  {
      ApplicationDir,
      SystemDir
  };
  
  Library *OpenSharedLibrary(const char *libraryName, SearchType searchType);
  Library *OpenSharedLibraryWithExtension(const char *libraryName);
  
  // Returns true if the process is currently being debugged.
  bool IsDebuggerAttached();
  
  // Calls system APIs to break into the debugger.
  void BreakDebugger();
  }  // namespace angle
  
  #endif  // COMMON_SYSTEM_UTILS_H_
  

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