kc3-lang/angle/util/android/android_backtrace.cpp

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• Hash : f62405c5
  Author :
  Date : 2022-10-31T18:47:52
  

  Add utilities to get the Android backtrace
  
  * Added getBacktraceInfo(), which returns the backtrace information
    from the ANGLE code, including the addresses and the symbols if
    possible
  
    * Returns the data in an instance of the new class BacktraceInfo.
  
    * In order to access this function, backtrace_utils.h has been
      included in vk_utils.h
  
  * New GN flag to make use of this feature:
  
    * angle_enable_unwind_backtrace_support
  
      * Current only available on Android (debug mode)
  
    * If the flag is disabled, getBacktraceInfo() returns an empty
      object.
  
  * Added functions in util/ (per platform) to print the BacktraceInfo
    data.
  
    * Example of usage:
        angle::printBacktraceInfo(angle::getBacktraceInfo());
  
  * Minor edit: Moved cstdint from android_util.cpp to its header.
  
  Bug: b/258475923
  Change-Id: I6115462a1a2845d40c7cafc14ce52df09ecdcf34
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3995843
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Charlie Lao <cclao@google.com>
  Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>
  

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• util/android/android_backtrace.cpp

• //
  // Copyright 2022 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.
  //
  // android_backtrace.cpp:
  //   Implements functions to output the backtrace from the ANGLE code during execution on Android.
  //
  
  #include "common/backtrace_utils.h"
  
  namespace angle
  {
  
  void printBacktraceInfo(BacktraceInfo backtraceInfo)
  {
      // Return if no backtrace data is available.
      if (backtraceInfo.getStackAddresses().empty())
      {
          return;
      }
  
      WARN() << "Backtrace start";
      for (size_t i = 0; i < backtraceInfo.getSize(); i++)
      {
          WARN() << i << ":" << backtraceInfo.getStackAddress(i) << " -> "
                 << backtraceInfo.getStackSymbol(i);
      }
      WARN() << "Backtrace end";
  }
  }  // namespace angle
  

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