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81 lines
3.0 KiB
C
81 lines
3.0 KiB
C
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// Copyright (c) 2006, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// stackwalker_ppc.h: ppc-specific stackwalker.
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//
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// Provides stack frames given ppc register context and a memory region
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// corresponding to a ppc stack.
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//
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// Author: Mark Mentovai
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#ifndef PROCESSOR_STACKWALKER_PPC_H__
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#define PROCESSOR_STACKWALKER_PPC_H__
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#include "google/airbag_types.h"
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#include "processor/stackwalker.h"
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#include "processor/minidump_format.h"
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namespace google_airbag {
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class MinidumpContext;
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class MinidumpModuleList;
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class StackwalkerPPC : public Stackwalker {
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public:
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// context is a MinidumpContext object that gives access to ppc-specific
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// register state corresponding to the innermost called frame to be
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// included in the stack. The other arguments are passed directly through
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// to the base Stackwalker constructor.
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StackwalkerPPC(const MDRawContextPPC *context,
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MemoryRegion *memory,
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MinidumpModuleList *modules,
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SymbolSupplier *supplier);
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private:
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// Implementation of Stackwalker, using ppc context (stack pointer in %r1,
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// saved program counter in %srr0) and stack conventions (saved stack
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// pointer at 0(%r1), return address at 8(0(%r1)).
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virtual bool GetContextFrame(StackFrame *frame);
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virtual bool GetCallerFrame(StackFrame *frame,
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const StackFrames *walked_frames);
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// Stores the CPU context corresponding to the innermost stack frame to
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// be returned by GetContextFrame.
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const MDRawContextPPC *context_;
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};
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} // namespace google_airbag
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#endif // PROCESSOR_STACKWALKER_PPC_H__
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