mirror of
https://github.com/yuzu-emu/breakpad.git
synced 2025-01-27 13:21:11 +00:00
b097e31d92
Review URL: https://breakpad.appspot.com/624002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1209 4c0a9323-5329-0410-9bdc-e9ce6186880e
93 lines
3.3 KiB
C++
93 lines
3.3 KiB
C++
// 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_PREWALKED;
|
|
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_PREWALKED;
|
|
return frame;
|
|
}
|
|
|
|
} // namespace google_breakpad
|