183e085b7a331c96237cf8e814f97b3ef4c36a70fjimblandy// Copyright (c) 2010 Google Inc. 27daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// All rights reserved. 3213800d30c11612cb0457c94d7233813a22d83d5mmentovai// 47daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// Redistribution and use in source and binary forms, with or without 57daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// modification, are permitted provided that the following conditions are 67daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// met: 7213800d30c11612cb0457c94d7233813a22d83d5mmentovai// 87daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// * Redistributions of source code must retain the above copyright 97daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// notice, this list of conditions and the following disclaimer. 107daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// * Redistributions in binary form must reproduce the above 117daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// copyright notice, this list of conditions and the following disclaimer 127daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// in the documentation and/or other materials provided with the 137daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// distribution. 147daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// * Neither the name of Google Inc. nor the names of its 157daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// contributors may be used to endorse or promote products derived from 167daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// this software without specific prior written permission. 17213800d30c11612cb0457c94d7233813a22d83d5mmentovai// 187daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 197daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 207daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 217daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 227daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 237daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 247daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 257daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 267daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 277daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 287daf246e4baf0837e25429668cc23e92b6afe3b3mmentovai// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29213800d30c11612cb0457c94d7233813a22d83d5mmentovai 30213800d30c11612cb0457c94d7233813a22d83d5mmentovai// stackwalker.cc: Generic stackwalker. 31213800d30c11612cb0457c94d7233813a22d83d5mmentovai// 32213800d30c11612cb0457c94d7233813a22d83d5mmentovai// See stackwalker.h for documentation. 33213800d30c11612cb0457c94d7233813a22d83d5mmentovai// 34213800d30c11612cb0457c94d7233813a22d83d5mmentovai// Author: Mark Mentovai 35213800d30c11612cb0457c94d7233813a22d83d5mmentovai 36e1930985430ce289f4fe8525f51050e5d78cc44eted.mielczarek#include "google_breakpad/processor/stackwalker.h" 37213800d30c11612cb0457c94d7233813a22d83d5mmentovai 38e1930985430ce289f4fe8525f51050e5d78cc44eted.mielczarek#include <assert.h> 39f33b8d2d07a057fdd667c2e0db629ba7cbc37cc3bryner 402cc15ba4327831f917ff55b87e6d5fc3c7750085ted.mielczarek@gmail.com#include "common/scoped_ptr.h" 41e5dc60822e5938fea2ae892ccddb906641ba174emmentovai#include "google_breakpad/processor/call_stack.h" 42e5dc60822e5938fea2ae892ccddb906641ba174emmentovai#include "google_breakpad/processor/code_module.h" 43e5dc60822e5938fea2ae892ccddb906641ba174emmentovai#include "google_breakpad/processor/code_modules.h" 44c5e242b8cd4280db5162e5a3084f2dc9e16e8ffbmmandlis@chromium.org#include "google_breakpad/processor/dump_context.h" 45e5dc60822e5938fea2ae892ccddb906641ba174emmentovai#include "google_breakpad/processor/stack_frame.h" 469753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com#include "google_breakpad/processor/stack_frame_symbolizer.h" 470fd250335b66b12609aaf1b749384b711ecddaa9qsr@chromium.org#include "google_breakpad/processor/system_info.h" 48d119a921ea611dc38cfcb7411759ddf2c688603fmmentovai#include "processor/linked_ptr.h" 4965571f17edb82d122b5f6dc741bd7d4b9e315e1bmmentovai#include "processor/logging.h" 50960e5277ee489960c40c50c6222606200419302ammentovai#include "processor/stackwalker_ppc.h" 51cd1f1a6399d5a73ac2bdf5671f8322ba013e8e21thestig@chromium.org#include "processor/stackwalker_ppc64.h" 52ea2bba970675e01f9964f82d3f44960c1aad05dcmmentovai#include "processor/stackwalker_sparc.h" 53960e5277ee489960c40c50c6222606200419302ammentovai#include "processor/stackwalker_x86.h" 548eb7111814953cb64ec0569b91ea99804b2d5b85ted.mielczarek#include "processor/stackwalker_amd64.h" 559276b0d3017ad5ca93c8b593cacf317e1eaa114eted.mielczarek#include "processor/stackwalker_arm.h" 5639d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org#include "processor/stackwalker_arm64.h" 575f22d6a7f471f2352d394c188560fd06830e14f3gordana.cmiljanovic@imgtec.com#include "processor/stackwalker_mips.h" 58213800d30c11612cb0457c94d7233813a22d83d5mmentovai 59e5dc60822e5938fea2ae892ccddb906641ba174emmentovainamespace google_breakpad { 60213800d30c11612cb0457c94d7233813a22d83d5mmentovai 61bc9a28655784a66e8772cdc5b428ef5bb6286d8cted.mielczarek@gmail.comconst int Stackwalker::kRASearchWords = 30; 6242b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com 636162aed3c3fcfc53373c963ac375d39a5dfa5a25ted.mielczarek@gmail.comuint32_t Stackwalker::max_frames_ = 1024; 640e8d72222af5c46f57f1d12149da7a6ce68e63d8ted.mielczarek@gmail.combool Stackwalker::max_frames_set_ = false; 65213800d30c11612cb0457c94d7233813a22d83d5mmentovai 6642b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.comuint32_t Stackwalker::max_frames_scanned_ = 1024; 6742b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com 689753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.comStackwalker::Stackwalker(const SystemInfo* system_info, 699753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com MemoryRegion* memory, 709753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com const CodeModules* modules, 719753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com StackFrameSymbolizer* frame_symbolizer) 7297d392dc4b60f0099cd7ad8c8a5f06581a532392mmentovai : system_info_(system_info), 7397d392dc4b60f0099cd7ad8c8a5f06581a532392mmentovai memory_(memory), 74fd38d48e6d5e56cb66b0fa0f7e25f840a83dac5cbryner modules_(modules), 759753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com frame_symbolizer_(frame_symbolizer) { 769753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com assert(frame_symbolizer_); 77213800d30c11612cb0457c94d7233813a22d83d5mmentovai} 78213800d30c11612cb0457c94d7233813a22d83d5mmentovai 792d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.comvoid InsertSpecialAttentionModule( 802d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com StackFrameSymbolizer::SymbolizerResult symbolizer_result, 812d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com const CodeModule* module, 822d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com vector<const CodeModule*>* modules) { 832d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com if (!module) { 842d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com return; 852d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com } 862d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com assert(symbolizer_result == StackFrameSymbolizer::kError || 872d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com symbolizer_result == StackFrameSymbolizer::kWarningCorruptSymbols); 882d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com bool found = false; 892d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com vector<const CodeModule*>::iterator iter; 902d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com for (iter = modules->begin(); iter != modules->end(); ++iter) { 912d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com if (*iter == module) { 922d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com found = true; 932d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com break; 942d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com } 952d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com } 962d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com if (!found) { 972d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com BPLOG(INFO) << ((symbolizer_result == StackFrameSymbolizer::kError) ? 982d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com "Couldn't load symbols for: " : 992d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com "Detected corrupt symbols for: ") 1002d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com << module->debug_file() << "|" << module->debug_identifier(); 1012d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com modules->push_back(module); 1022d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com } 1032d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com} 104213800d30c11612cb0457c94d7233813a22d83d5mmentovai 1052d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.combool Stackwalker::Walk( 1062d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com CallStack* stack, 1072d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com vector<const CodeModule*>* modules_without_symbols, 1082d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com vector<const CodeModule*>* modules_with_corrupt_symbols) { 10965571f17edb82d122b5f6dc741bd7d4b9e315e1bmmentovai BPLOG_IF(ERROR, !stack) << "Stackwalker::Walk requires |stack|"; 110f33b8d2d07a057fdd667c2e0db629ba7cbc37cc3bryner assert(stack); 111f33b8d2d07a057fdd667c2e0db629ba7cbc37cc3bryner stack->Clear(); 112d119a921ea611dc38cfcb7411759ddf2c688603fmmentovai 1135a2106b5f95f3232ac0e9aab5f081eb04313a8b6ivan.penkov@gmail.com BPLOG_IF(ERROR, !modules_without_symbols) << "Stackwalker::Walk requires " 1145a2106b5f95f3232ac0e9aab5f081eb04313a8b6ivan.penkov@gmail.com << "|modules_without_symbols|"; 1152d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com BPLOG_IF(ERROR, !modules_without_symbols) << "Stackwalker::Walk requires " 1162d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com << "|modules_with_corrupt_symbols|"; 1175a2106b5f95f3232ac0e9aab5f081eb04313a8b6ivan.penkov@gmail.com assert(modules_without_symbols); 1182d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com assert(modules_with_corrupt_symbols); 1195a2106b5f95f3232ac0e9aab5f081eb04313a8b6ivan.penkov@gmail.com 120213800d30c11612cb0457c94d7233813a22d83d5mmentovai // Begin with the context frame, and keep getting callers until there are 121213800d30c11612cb0457c94d7233813a22d83d5mmentovai // no more. 122213800d30c11612cb0457c94d7233813a22d83d5mmentovai 12342b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com // Keep track of the number of scanned or otherwise dubious frames seen 12442b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com // so far, as the caller may have set a limit. 12542b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com uint32_t scanned_frames = 0; 12642b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com 127246f4068280b5b191303ff13671e43a0522987demmentovai // Take ownership of the pointer returned by GetContextFrame. 1282466d8e993a800a17e00deda2f3a27e0505140e1mmentovai scoped_ptr<StackFrame> frame(GetContextFrame()); 129246f4068280b5b191303ff13671e43a0522987demmentovai 130246f4068280b5b191303ff13671e43a0522987demmentovai while (frame.get()) { 131213800d30c11612cb0457c94d7233813a22d83d5mmentovai // frame already contains a good frame with properly set instruction and 132213800d30c11612cb0457c94d7233813a22d83d5mmentovai // frame_pointer fields. The frame structure comes from either the 133213800d30c11612cb0457c94d7233813a22d83d5mmentovai // context frame (above) or a caller frame (below). 134213800d30c11612cb0457c94d7233813a22d83d5mmentovai 135213800d30c11612cb0457c94d7233813a22d83d5mmentovai // Resolve the module information, if a module map was provided. 1369753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com StackFrameSymbolizer::SymbolizerResult symbolizer_result = 1379753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com frame_symbolizer_->FillSourceLineInfo(modules_, system_info_, 1389753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com frame.get()); 1392d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com switch (symbolizer_result) { 1402d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com case StackFrameSymbolizer::kInterrupt: 1412d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com BPLOG(INFO) << "Stack walk is interrupted."; 1422d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com return false; 1432d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com break; 1442d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com case StackFrameSymbolizer::kError: 1452d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com InsertSpecialAttentionModule(symbolizer_result, frame->module, 1462d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com modules_without_symbols); 1472d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com break; 1482d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com case StackFrameSymbolizer::kWarningCorruptSymbols: 1492d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com InsertSpecialAttentionModule(symbolizer_result, frame->module, 1502d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com modules_with_corrupt_symbols); 1512d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com break; 1522d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com case StackFrameSymbolizer::kNoError: 1532d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com break; 1542d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com default: 1552d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com assert(false); 1562d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com break; 1575a2106b5f95f3232ac0e9aab5f081eb04313a8b6ivan.penkov@gmail.com } 1585a2106b5f95f3232ac0e9aab5f081eb04313a8b6ivan.penkov@gmail.com 15942b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com // Keep track of the number of dubious frames so far. 16042b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com switch (frame.get()->trust) { 16142b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com case StackFrame::FRAME_TRUST_NONE: 16242b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com case StackFrame::FRAME_TRUST_SCAN: 16342b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com case StackFrame::FRAME_TRUST_CFI_SCAN: 16442b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com scanned_frames++; 16542b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com break; 16642b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com default: 16742b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com break; 16842b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com } 16942b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com 170246f4068280b5b191303ff13671e43a0522987demmentovai // Add the frame to the call stack. Relinquish the ownership claim 171246f4068280b5b191303ff13671e43a0522987demmentovai // over the frame, because the stack now owns it. 172246f4068280b5b191303ff13671e43a0522987demmentovai stack->frames_.push_back(frame.release()); 1738e77c078d68ebd25d70f92f70a5aa630b19c7ee2thestig@chromium.org if (stack->frames_.size() > max_frames_) { 1740e8d72222af5c46f57f1d12149da7a6ce68e63d8ted.mielczarek@gmail.com // Only emit an error message in the case where the limit 1750e8d72222af5c46f57f1d12149da7a6ce68e63d8ted.mielczarek@gmail.com // reached is the default limit, not set by the user. 1760e8d72222af5c46f57f1d12149da7a6ce68e63d8ted.mielczarek@gmail.com if (!max_frames_set_) 1770e8d72222af5c46f57f1d12149da7a6ce68e63d8ted.mielczarek@gmail.com BPLOG(ERROR) << "The stack is over " << max_frames_ << " frames."; 1788e77c078d68ebd25d70f92f70a5aa630b19c7ee2thestig@chromium.org break; 1798e77c078d68ebd25d70f92f70a5aa630b19c7ee2thestig@chromium.org } 180213800d30c11612cb0457c94d7233813a22d83d5mmentovai 181246f4068280b5b191303ff13671e43a0522987demmentovai // Get the next frame and take ownership. 18242b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com bool stack_scan_allowed = scanned_frames < max_frames_scanned_; 18342b91fbbf30f8a6d900d1fb97e96394dbb363890ted.mielczarek@gmail.com frame.reset(GetCallerFrame(stack, stack_scan_allowed)); 184213800d30c11612cb0457c94d7233813a22d83d5mmentovai } 185d119a921ea611dc38cfcb7411759ddf2c688603fmmentovai 186f33b8d2d07a057fdd667c2e0db629ba7cbc37cc3bryner return true; 187213800d30c11612cb0457c94d7233813a22d83d5mmentovai} 188213800d30c11612cb0457c94d7233813a22d83d5mmentovai 189213800d30c11612cb0457c94d7233813a22d83d5mmentovai 190960e5277ee489960c40c50c6222606200419302ammentovai// static 191fd38d48e6d5e56cb66b0fa0f7e25f840a83dac5cbrynerStackwalker* Stackwalker::StackwalkerForCPU( 1929753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com const SystemInfo* system_info, 193c5e242b8cd4280db5162e5a3084f2dc9e16e8ffbmmandlis@chromium.org DumpContext* context, 1949753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com MemoryRegion* memory, 1959753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com const CodeModules* modules, 1969753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com StackFrameSymbolizer* frame_symbolizer) { 19765571f17edb82d122b5f6dc741bd7d4b9e315e1bmmentovai if (!context) { 19865571f17edb82d122b5f6dc741bd7d4b9e315e1bmmentovai BPLOG(ERROR) << "Can't choose a stackwalker implementation without context"; 1993c27dcc1b6618581d868576798b64383b0ab57a7mmentovai return NULL; 20065571f17edb82d122b5f6dc741bd7d4b9e315e1bmmentovai } 2013c27dcc1b6618581d868576798b64383b0ab57a7mmentovai 2029753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com Stackwalker* cpu_stackwalker = NULL; 203960e5277ee489960c40c50c6222606200419302ammentovai 2046162aed3c3fcfc53373c963ac375d39a5dfa5a25ted.mielczarek@gmail.com uint32_t cpu = context->GetContextCPU(); 205960e5277ee489960c40c50c6222606200419302ammentovai switch (cpu) { 206960e5277ee489960c40c50c6222606200419302ammentovai case MD_CONTEXT_X86: 20797d392dc4b60f0099cd7ad8c8a5f06581a532392mmentovai cpu_stackwalker = new StackwalkerX86(system_info, 20897d392dc4b60f0099cd7ad8c8a5f06581a532392mmentovai context->GetContextX86(), 2099753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com memory, modules, frame_symbolizer); 210960e5277ee489960c40c50c6222606200419302ammentovai break; 211960e5277ee489960c40c50c6222606200419302ammentovai 212960e5277ee489960c40c50c6222606200419302ammentovai case MD_CONTEXT_PPC: 21397d392dc4b60f0099cd7ad8c8a5f06581a532392mmentovai cpu_stackwalker = new StackwalkerPPC(system_info, 21497d392dc4b60f0099cd7ad8c8a5f06581a532392mmentovai context->GetContextPPC(), 2159753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com memory, modules, frame_symbolizer); 216960e5277ee489960c40c50c6222606200419302ammentovai break; 2178eb7111814953cb64ec0569b91ea99804b2d5b85ted.mielczarek 218cd1f1a6399d5a73ac2bdf5671f8322ba013e8e21thestig@chromium.org case MD_CONTEXT_PPC64: 219cd1f1a6399d5a73ac2bdf5671f8322ba013e8e21thestig@chromium.org cpu_stackwalker = new StackwalkerPPC64(system_info, 220cd1f1a6399d5a73ac2bdf5671f8322ba013e8e21thestig@chromium.org context->GetContextPPC64(), 221cd1f1a6399d5a73ac2bdf5671f8322ba013e8e21thestig@chromium.org memory, modules, frame_symbolizer); 222cd1f1a6399d5a73ac2bdf5671f8322ba013e8e21thestig@chromium.org break; 223cd1f1a6399d5a73ac2bdf5671f8322ba013e8e21thestig@chromium.org 2248eb7111814953cb64ec0569b91ea99804b2d5b85ted.mielczarek case MD_CONTEXT_AMD64: 2258eb7111814953cb64ec0569b91ea99804b2d5b85ted.mielczarek cpu_stackwalker = new StackwalkerAMD64(system_info, 2268eb7111814953cb64ec0569b91ea99804b2d5b85ted.mielczarek context->GetContextAMD64(), 2279753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com memory, modules, frame_symbolizer); 2288eb7111814953cb64ec0569b91ea99804b2d5b85ted.mielczarek break; 2298e77c078d68ebd25d70f92f70a5aa630b19c7ee2thestig@chromium.org 230ea2bba970675e01f9964f82d3f44960c1aad05dcmmentovai case MD_CONTEXT_SPARC: 231ea2bba970675e01f9964f82d3f44960c1aad05dcmmentovai cpu_stackwalker = new StackwalkerSPARC(system_info, 232ea2bba970675e01f9964f82d3f44960c1aad05dcmmentovai context->GetContextSPARC(), 2339753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com memory, modules, frame_symbolizer); 234ea2bba970675e01f9964f82d3f44960c1aad05dcmmentovai break; 2355f22d6a7f471f2352d394c188560fd06830e14f3gordana.cmiljanovic@imgtec.com 2365f22d6a7f471f2352d394c188560fd06830e14f3gordana.cmiljanovic@imgtec.com case MD_CONTEXT_MIPS: 2375f22d6a7f471f2352d394c188560fd06830e14f3gordana.cmiljanovic@imgtec.com cpu_stackwalker = new StackwalkerMIPS(system_info, 2385f22d6a7f471f2352d394c188560fd06830e14f3gordana.cmiljanovic@imgtec.com context->GetContextMIPS(), 2395f22d6a7f471f2352d394c188560fd06830e14f3gordana.cmiljanovic@imgtec.com memory, modules, frame_symbolizer); 2405f22d6a7f471f2352d394c188560fd06830e14f3gordana.cmiljanovic@imgtec.com break; 2419276b0d3017ad5ca93c8b593cacf317e1eaa114eted.mielczarek 2429276b0d3017ad5ca93c8b593cacf317e1eaa114eted.mielczarek case MD_CONTEXT_ARM: 24339d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org { 2440fd250335b66b12609aaf1b749384b711ecddaa9qsr@chromium.org int fp_register = -1; 2450fd250335b66b12609aaf1b749384b711ecddaa9qsr@chromium.org if (system_info->os_short == "ios") 2460fd250335b66b12609aaf1b749384b711ecddaa9qsr@chromium.org fp_register = MD_CONTEXT_ARM_REG_IOS_FP; 2479276b0d3017ad5ca93c8b593cacf317e1eaa114eted.mielczarek cpu_stackwalker = new StackwalkerARM(system_info, 2489276b0d3017ad5ca93c8b593cacf317e1eaa114eted.mielczarek context->GetContextARM(), 2499753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com fp_register, memory, modules, 2509753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com frame_symbolizer); 2519276b0d3017ad5ca93c8b593cacf317e1eaa114eted.mielczarek break; 25239d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org } 25339d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org 25439d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org case MD_CONTEXT_ARM64: 25539d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org cpu_stackwalker = new StackwalkerARM64(system_info, 25639d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org context->GetContextARM64(), 25739d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org memory, modules, 25839d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org frame_symbolizer); 25939d7964df5d3ba7c3889bf19004f6e18eee5cfc6mark@chromium.org break; 260960e5277ee489960c40c50c6222606200419302ammentovai } 261960e5277ee489960c40c50c6222606200419302ammentovai 26265571f17edb82d122b5f6dc741bd7d4b9e315e1bmmentovai BPLOG_IF(ERROR, !cpu_stackwalker) << "Unknown CPU type " << HexString(cpu) << 26365571f17edb82d122b5f6dc741bd7d4b9e315e1bmmentovai ", can't choose a stackwalker " 26465571f17edb82d122b5f6dc741bd7d4b9e315e1bmmentovai "implementation"; 265960e5277ee489960c40c50c6222606200419302ammentovai return cpu_stackwalker; 266960e5277ee489960c40c50c6222606200419302ammentovai} 267960e5277ee489960c40c50c6222606200419302ammentovai 2686162aed3c3fcfc53373c963ac375d39a5dfa5a25ted.mielczarek@gmail.combool Stackwalker::InstructionAddressSeemsValid(uint64_t address) { 2699753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com StackFrame frame; 2709753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com frame.instruction = address; 2719753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com StackFrameSymbolizer::SymbolizerResult symbolizer_result = 2729753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com frame_symbolizer_->FillSourceLineInfo(modules_, system_info_, &frame); 2739753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com 2749753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com if (!frame.module) { 2758d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek // not inside any loaded module 2768d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek return false; 2778d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek } 2788d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek 2799753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com if (!frame_symbolizer_->HasImplementation()) { 2809753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com // No valid implementation to symbolize stack frame, but the address is 2819753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com // within a known module. 2828d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek return true; 2838d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek } 2848d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek 2852d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com if (symbolizer_result != StackFrameSymbolizer::kNoError && 2862d460c37d16a99fd4bcdac045298e87b6b5735b0ivan.penkov@gmail.com symbolizer_result != StackFrameSymbolizer::kWarningCorruptSymbols) { 2879753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com // Some error occurred during symbolization, but the address is within a 2889753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com // known module 2899753aff85a9a20dbe294529b4184d9686ec42cddSiyangXie@gmail.com return true; 2908d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek } 2918d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek 2928d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek return !frame.function_name.empty(); 2938d70618ffc6f87bfd3d7bfd05c87c35ec3179a7ated.mielczarek} 294960e5277ee489960c40c50c6222606200419302ammentovai 295e5dc60822e5938fea2ae892ccddb906641ba174emmentovai} // namespace google_breakpad 296