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Create StackwalkerAddressList.

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This creates a pseudo stack-walker which does nothing except symbolize an
already walked array of addresses. Will be used for adding 'additional stack
trace' support to MinidumpProcessor.

R=mark@chromium.org, ivan.penkov@gmail.com

Review URL: https://breakpad.appspot.com/620002/



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1207 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
chrisha@chromium.org 2013-08-23 14:38:36 +00:00
parent 0510e34cbf
commit 1e57990cee
6 changed files with 683 additions and 99 deletions
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src/processor/stackwalker_address_list.cc Normal file
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// Copyright (c) 2013 Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// stackwalker_address_list.cc: a pseudo stack walker.
//
// See stackwalker_address_list.h for documentation.
//
// Author: Chris Hamilton <chrisha@chromium.org>
#include <assert.h>
#include <vector>
#include "google_breakpad/processor/call_stack.h"
#include "google_breakpad/processor/memory_region.h"
#include "google_breakpad/processor/source_line_resolver_interface.h"
#include "google_breakpad/processor/stack_frame.h"
#include "processor/logging.h"
#include "processor/stackwalker_address_list.h"
namespace google_breakpad {
StackwalkerAddressList::StackwalkerAddressList(
const uint64_t* frames,
size_t frame_count,
const CodeModules* modules,
StackFrameSymbolizer* frame_symbolizer)
: Stackwalker(NULL, NULL, modules, frame_symbolizer),
frames_(frames),
frame_count_(frame_count) {
assert(frames);
assert(frame_symbolizer);
}
StackFrame* StackwalkerAddressList::GetContextFrame() {
if (frame_count_ == 0)
return NULL;
StackFrame* frame = new StackFrame();
frame->instruction = frames_[0];
frame->trust = StackFrame::FRAME_TRUST_CONTEXT;
return frame;
}
StackFrame* StackwalkerAddressList::GetCallerFrame(const CallStack* stack,
bool stack_scan_allowed) {
if (!stack) {
BPLOG(ERROR) << "Can't get caller frame without stack";
return NULL;
}
size_t frame_index = stack->frames()->size();
// There are no more frames to fetch.
if (frame_index >= frame_count_)
return NULL;
// All frames have the highest level of trust because they were
// explicitly provided.
StackFrame* frame = new StackFrame();
frame->instruction = frames_[frame_index];
frame->trust = StackFrame::FRAME_TRUST_CONTEXT;
return frame;
}
} // namespace google_breakpad