1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/crashreporter/google-breakpad/src/processor/stackwalker_amd64.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,100 @@
1.4 +// Copyright (c) 2010 Google Inc.
1.5 +// All rights reserved.
1.6 +//
1.7 +// Redistribution and use in source and binary forms, with or without
1.8 +// modification, are permitted provided that the following conditions are
1.9 +// met:
1.10 +//
1.11 +// * Redistributions of source code must retain the above copyright
1.12 +// notice, this list of conditions and the following disclaimer.
1.13 +// * Redistributions in binary form must reproduce the above
1.14 +// copyright notice, this list of conditions and the following disclaimer
1.15 +// in the documentation and/or other materials provided with the
1.16 +// distribution.
1.17 +// * Neither the name of Google Inc. nor the names of its
1.18 +// contributors may be used to endorse or promote products derived from
1.19 +// this software without specific prior written permission.
1.20 +//
1.21 +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.22 +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.23 +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.24 +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.25 +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.26 +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.27 +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.28 +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.29 +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.30 +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.31 +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.32 +
1.33 +// stackwalker_amd64.h: amd64-specific stackwalker.
1.34 +//
1.35 +// Provides stack frames given amd64 register context and a memory region
1.36 +// corresponding to a amd64 stack.
1.37 +//
1.38 +// Author: Mark Mentovai, Ted Mielczarek
1.39 +
1.40 +
1.41 +#ifndef PROCESSOR_STACKWALKER_AMD64_H__
1.42 +#define PROCESSOR_STACKWALKER_AMD64_H__
1.43 +
1.44 +#include <vector>
1.45 +
1.46 +#include "google_breakpad/common/breakpad_types.h"
1.47 +#include "google_breakpad/common/minidump_format.h"
1.48 +#include "google_breakpad/processor/stackwalker.h"
1.49 +#include "google_breakpad/processor/stack_frame_cpu.h"
1.50 +#include "processor/cfi_frame_info.h"
1.51 +
1.52 +namespace google_breakpad {
1.53 +
1.54 +class CodeModules;
1.55 +
1.56 +class StackwalkerAMD64 : public Stackwalker {
1.57 + public:
1.58 + // context is a amd64 context object that gives access to amd64-specific
1.59 + // register state corresponding to the innermost called frame to be
1.60 + // included in the stack. The other arguments are passed directly through
1.61 + // to the base Stackwalker constructor.
1.62 + StackwalkerAMD64(const SystemInfo* system_info,
1.63 + const MDRawContextAMD64* context,
1.64 + MemoryRegion* memory,
1.65 + const CodeModules* modules,
1.66 + StackFrameSymbolizer* frame_symbolizer);
1.67 +
1.68 + private:
1.69 + // A STACK CFI-driven frame walker for the AMD64
1.70 + typedef SimpleCFIWalker<uint64_t, MDRawContextAMD64> CFIWalker;
1.71 +
1.72 + // Implementation of Stackwalker, using amd64 context (stack pointer in %rsp,
1.73 + // stack base in %rbp) and stack conventions (saved stack pointer at 0(%rbp))
1.74 + virtual StackFrame* GetContextFrame();
1.75 + virtual StackFrame* GetCallerFrame(const CallStack* stack,
1.76 + bool stack_scan_allowed);
1.77 +
1.78 + // Use cfi_frame_info (derived from STACK CFI records) to construct
1.79 + // the frame that called frames.back(). The caller takes ownership
1.80 + // of the returned frame. Return NULL on failure.
1.81 + StackFrameAMD64* GetCallerByCFIFrameInfo(const vector<StackFrame*> &frames,
1.82 + CFIFrameInfo* cfi_frame_info);
1.83 +
1.84 + // Scan the stack for plausible return addresses. The caller takes ownership
1.85 + // of the returned frame. Return NULL on failure.
1.86 + StackFrameAMD64* GetCallerByStackScan(const vector<StackFrame*> &frames);
1.87 +
1.88 + // Stores the CPU context corresponding to the innermost stack frame to
1.89 + // be returned by GetContextFrame.
1.90 + const MDRawContextAMD64* context_;
1.91 +
1.92 + // Our register map, for cfi_walker_.
1.93 + static const CFIWalker::RegisterSet cfi_register_map_[];
1.94 +
1.95 + // Our CFI frame walker.
1.96 + const CFIWalker cfi_walker_;
1.97 +};
1.98 +
1.99 +
1.100 +} // namespace google_breakpad
1.101 +
1.102 +
1.103 +#endif // PROCESSOR_STACKWALKER_AMD64_H__
