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      1 // Copyright (c) 2013 Google Inc.
      2 // All rights reserved.
      3 //
      4 // Redistribution and use in source and binary forms, with or without
      5 // modification, are permitted provided that the following conditions are
      6 // met:
      7 //
      8 //     * Redistributions of source code must retain the above copyright
      9 // notice, this list of conditions and the following disclaimer.
     10 //     * Redistributions in binary form must reproduce the above
     11 // copyright notice, this list of conditions and the following disclaimer
     12 // in the documentation and/or other materials provided with the
     13 // distribution.
     14 //     * Neither the name of Google Inc. nor the names of its
     15 // contributors may be used to endorse or promote products derived from
     16 // this software without specific prior written permission.
     17 //
     18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29 
     30 // stackwalker_address_list.h: a pseudo stackwalker.
     31 //
     32 // Doesn't actually walk a stack, rather initializes a CallStack given an
     33 // explicit list of already walked return addresses.
     34 //
     35 // Author: Chris Hamilton <chrisha (at) chromium.org>
     36 
     37 #ifndef PROCESSOR_STACKWALKER_ADDRESS_LIST_H_
     38 #define PROCESSOR_STACKWALKER_ADDRESS_LIST_H_
     39 
     40 #include "common/basictypes.h"
     41 #include "google_breakpad/common/breakpad_types.h"
     42 #include "google_breakpad/processor/stackwalker.h"
     43 
     44 namespace google_breakpad {
     45 
     46 class CodeModules;
     47 
     48 class StackwalkerAddressList : public Stackwalker {
     49  public:
     50   // Initializes this stack walker with an explicit set of frame addresses.
     51   // |modules| and |frame_symbolizer| are passed directly through to the base
     52   // Stackwalker constructor.
     53   StackwalkerAddressList(const uint64_t* frames,
     54                          size_t frame_count,
     55                          const CodeModules* modules,
     56                          StackFrameSymbolizer* frame_symbolizer);
     57 
     58  private:
     59   // Implementation of Stackwalker.
     60   virtual StackFrame* GetContextFrame();
     61   virtual StackFrame* GetCallerFrame(const CallStack* stack,
     62                                      bool stack_scan_allowed);
     63 
     64   const uint64_t* frames_;
     65   size_t frame_count_;
     66 
     67   DISALLOW_COPY_AND_ASSIGN(StackwalkerAddressList);
     68 };
     69 
     70 }  // namespace google_breakpad
     71 
     72 #endif  // PROCESSOR_STACKWALKER_ADDRESS_LIST_H_
     73