thread_tree.cpp revision b2465ad8bae68531dd9dbed88be469612cd7229a
160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui/* 260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * Copyright (C) 2015 The Android Open Source Project 360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * 460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * Licensed under the Apache License, Version 2.0 (the "License"); 560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * you may not use this file except in compliance with the License. 660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * You may obtain a copy of the License at 760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * 860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * http://www.apache.org/licenses/LICENSE-2.0 960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * 1060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * Unless required by applicable law or agreed to in writing, software 1160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * distributed under the License is distributed on an "AS IS" BASIS, 1260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * See the License for the specific language governing permissions and 1460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui * limitations under the License. 1560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui */ 1660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 1760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui#include "thread_tree.h" 1860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 1915475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui#include <inttypes.h> 2015475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui 21c84856093e8bf4350d30fc521dc0f1c800c5270bYabin Cui#include <limits> 22c84856093e8bf4350d30fc521dc0f1c800c5270bYabin Cui 2366dd09e8e2407082ce93bf0784de641298131912Elliott Hughes#include <android-base/logging.h> 2415475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui#include <android-base/stringprintf.h> 25c84856093e8bf4350d30fc521dc0f1c800c5270bYabin Cui 2673d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui#include "perf_event.h" 2773d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui#include "record.h" 2860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 29040f7b4c62ce49f0af0746640e94d415764262cdYabin Cuinamespace simpleperf { 30040f7b4c62ce49f0af0746640e94d415764262cdYabin Cui 319970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuibool MapComparator::operator()(const MapEntry* map1, 329970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui const MapEntry* map2) const { 3360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (map1->start_addr != map2->start_addr) { 3460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return map1->start_addr < map2->start_addr; 3560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 369970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui // Compare map->len instead of map->get_end_addr() here. Because we set map's 379970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui // len to std::numeric_limits<uint64_t>::max() in FindMapByAddr(), which makes 38b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui // map->get_end_addr() overflow. 39b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui if (map1->len != map2->len) { 40b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui return map1->len < map2->len; 4160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 4260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (map1->time != map2->time) { 4360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return map1->time < map2->time; 4460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 4560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return false; 4660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 4760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 4860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cuivoid ThreadTree::AddThread(int pid, int tid, const std::string& comm) { 4960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto it = thread_tree_.find(tid); 5060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (it == thread_tree_.end()) { 5160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui ThreadEntry* thread = new ThreadEntry{ 5260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui pid, tid, 5360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui "unknown", // comm 5460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui std::set<MapEntry*, MapComparator>(), // maps 5560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui }; 569970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui auto pair = thread_tree_.insert( 579970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui std::make_pair(tid, std::unique_ptr<ThreadEntry>(thread))); 5860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui CHECK(pair.second); 5960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui it = pair.first; 6060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 61003b245939bae5e86ed53b3c6b333637dbc571b4Yabin Cui if (comm != it->second->comm) { 62003b245939bae5e86ed53b3c6b333637dbc571b4Yabin Cui thread_comm_storage_.push_back( 63003b245939bae5e86ed53b3c6b333637dbc571b4Yabin Cui std::unique_ptr<std::string>(new std::string(comm))); 64003b245939bae5e86ed53b3c6b333637dbc571b4Yabin Cui it->second->comm = thread_comm_storage_.back()->c_str(); 65003b245939bae5e86ed53b3c6b333637dbc571b4Yabin Cui } 6660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 6760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 6860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cuivoid ThreadTree::ForkThread(int pid, int tid, int ppid, int ptid) { 6960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui ThreadEntry* parent = FindThreadOrNew(ppid, ptid); 7060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui ThreadEntry* child = FindThreadOrNew(pid, tid); 7160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui child->comm = parent->comm; 7260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui child->maps = parent->maps; 7360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 7460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 7560a0ea96c0fb9e807c899759256df5e20bd904bdYabin CuiThreadEntry* ThreadTree::FindThreadOrNew(int pid, int tid) { 7660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto it = thread_tree_.find(tid); 7760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (it == thread_tree_.end()) { 7860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui AddThread(pid, tid, "unknown"); 7960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui it = thread_tree_.find(tid); 8060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } else { 815f2a170a577258a2792bd768a8a776a562f4e6c2Yabin Cui if (pid != it->second.get()->pid) { 825f2a170a577258a2792bd768a8a776a562f4e6c2Yabin Cui // TODO: b/22185053. 839970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui LOG(DEBUG) << "unexpected (pid, tid) pair: expected (" 849970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui << it->second.get()->pid << ", " << tid << "), actual (" << pid 859970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui << ", " << tid << ")"; 865f2a170a577258a2792bd768a8a776a562f4e6c2Yabin Cui } 8760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 8860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return it->second.get(); 8960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 9060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 919970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuivoid ThreadTree::AddKernelMap(uint64_t start_addr, uint64_t len, uint64_t pgoff, 929970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui uint64_t time, const std::string& filename) { 9360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui // kernel map len can be 0 when record command is not run in supervisor mode. 9460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (len == 0) { 9560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return; 9660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 97c84856093e8bf4350d30fc521dc0f1c800c5270bYabin Cui Dso* dso = FindKernelDsoOrNew(filename); 989970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry* map = 999970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui AllocateMap(MapEntry(start_addr, len, pgoff, time, dso, true)); 100547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui FixOverlappedMap(&kernel_map_tree_, map); 10160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto pair = kernel_map_tree_.insert(map); 10260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui CHECK(pair.second); 10360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 10460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 105c84856093e8bf4350d30fc521dc0f1c800c5270bYabin CuiDso* ThreadTree::FindKernelDsoOrNew(const std::string& filename) { 106b2465ad8bae68531dd9dbed88be469612cd7229aDaniel Friederich if (filename == DEFAULT_KERNEL_MMAP_NAME || 107b2465ad8bae68531dd9dbed88be469612cd7229aDaniel Friederich filename == DEFAULT_KERNEL_MMAP_NAME_PERF) { 10860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return kernel_dso_.get(); 10960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 11060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto it = module_dso_tree_.find(filename); 11160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (it == module_dso_tree_.end()) { 112c84856093e8bf4350d30fc521dc0f1c800c5270bYabin Cui module_dso_tree_[filename] = Dso::CreateDso(DSO_KERNEL_MODULE, filename); 11360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui it = module_dso_tree_.find(filename); 11460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 11560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return it->second.get(); 11660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 11760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 1189970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuivoid ThreadTree::AddThreadMap(int pid, int tid, uint64_t start_addr, 1199970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui uint64_t len, uint64_t pgoff, uint64_t time, 1209970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui const std::string& filename) { 12160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui ThreadEntry* thread = FindThreadOrNew(pid, tid); 122c84856093e8bf4350d30fc521dc0f1c800c5270bYabin Cui Dso* dso = FindUserDsoOrNew(filename); 1239970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry* map = 1249970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui AllocateMap(MapEntry(start_addr, len, pgoff, time, dso, false)); 125547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui FixOverlappedMap(&thread->maps, map); 12660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto pair = thread->maps.insert(map); 12760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui CHECK(pair.second); 12860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 12960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 130c84856093e8bf4350d30fc521dc0f1c800c5270bYabin CuiDso* ThreadTree::FindUserDsoOrNew(const std::string& filename) { 13160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto it = user_dso_tree_.find(filename); 13260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (it == user_dso_tree_.end()) { 133c84856093e8bf4350d30fc521dc0f1c800c5270bYabin Cui user_dso_tree_[filename] = Dso::CreateDso(DSO_ELF_FILE, filename); 13460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui it = user_dso_tree_.find(filename); 13560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 13660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return it->second.get(); 13760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 13860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 139547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin CuiMapEntry* ThreadTree::AllocateMap(const MapEntry& value) { 140547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui MapEntry* map = new MapEntry(value); 141547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui map_storage_.push_back(std::unique_ptr<MapEntry>(map)); 142547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui return map; 143547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui} 144547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui 1459970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuivoid ThreadTree::FixOverlappedMap(std::set<MapEntry*, MapComparator>* map_set, 1469970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui const MapEntry* map) { 147547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui for (auto it = map_set->begin(); it != map_set->end();) { 148547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui if ((*it)->start_addr >= map->get_end_addr()) { 149547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui // No more overlapped maps. 150547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui break; 151547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 152547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui if ((*it)->get_end_addr() <= map->start_addr) { 153547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui ++it; 154547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } else { 155547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui MapEntry* old = *it; 156547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui if (old->start_addr < map->start_addr) { 1579970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry* before = AllocateMap( 1589970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry(old->start_addr, map->start_addr - old->start_addr, 1599970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui old->pgoff, old->time, old->dso, old->in_kernel)); 160547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui map_set->insert(before); 161547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 162547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui if (old->get_end_addr() > map->get_end_addr()) { 1639970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry* after = AllocateMap(MapEntry( 1649970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui map->get_end_addr(), old->get_end_addr() - map->get_end_addr(), 1659970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui map->get_end_addr() - old->start_addr + old->pgoff, old->time, 1669970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui old->dso, old->in_kernel)); 167547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui map_set->insert(after); 168547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 169547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui 170547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui it = map_set->erase(it); 171547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 172547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 173547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui} 174547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui 17560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cuistatic bool IsAddrInMap(uint64_t addr, const MapEntry* map) { 176547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui return (addr >= map->start_addr && addr < map->get_end_addr()); 17760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 17860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 1799970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuistatic MapEntry* FindMapByAddr(const std::set<MapEntry*, MapComparator>& maps, 1809970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui uint64_t addr) { 1819970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui // Construct a map_entry which is strictly after the searched map_entry, based 1829970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui // on MapComparator. 183547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui MapEntry find_map(addr, std::numeric_limits<uint64_t>::max(), 0, 184b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui std::numeric_limits<uint64_t>::max(), nullptr, false); 18560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto it = maps.upper_bound(&find_map); 18660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (it != maps.begin() && IsAddrInMap(addr, *--it)) { 18760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return *it; 18860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 18960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return nullptr; 19060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 19160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 1929970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuiconst MapEntry* ThreadTree::FindMap(const ThreadEntry* thread, uint64_t ip, 1939970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui bool in_kernel) { 19460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui MapEntry* result = nullptr; 19560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (!in_kernel) { 19660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui result = FindMapByAddr(thread->maps, ip); 19760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } else { 19860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui result = FindMapByAddr(kernel_map_tree_, ip); 19960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 20060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return result != nullptr ? result : &unknown_map_; 20160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 20260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 203b64a86327afe2b77dab7d724d363386c674163b6Yabin Cuiconst MapEntry* ThreadTree::FindMap(const ThreadEntry* thread, uint64_t ip) { 204b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui MapEntry* result = FindMapByAddr(thread->maps, ip); 205b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui if (result != nullptr) { 206b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui return result; 207b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui } 208b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui result = FindMapByAddr(kernel_map_tree_, ip); 209b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui return result != nullptr ? result : &unknown_map_; 210b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui} 211b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui 2129970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuiconst Symbol* ThreadTree::FindSymbol(const MapEntry* map, uint64_t ip, 21316501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui uint64_t* pvaddr_in_file, Dso** pdso) { 214547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui uint64_t vaddr_in_file; 21515475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui Dso* dso = map->dso; 21616501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui vaddr_in_file = ip - map->start_addr + map->dso->MinVirtualAddress(); 21715475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui const Symbol* symbol = dso->FindSymbol(vaddr_in_file); 21815475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui if (symbol == nullptr && map->in_kernel && dso != kernel_dso_.get()) { 219b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui // It is in a kernel module, but we can't find the kernel module file, or 220b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui // the kernel module file contains no symbol. Try finding the symbol in 221b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui // /proc/kallsyms. 222b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui vaddr_in_file = ip; 22315475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui dso = kernel_dso_.get(); 22415475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui symbol = dso->FindSymbol(vaddr_in_file); 225b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } 22660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (symbol == nullptr) { 22715475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui if (show_ip_for_unknown_symbol_) { 22815475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui std::string name = android::base::StringPrintf( 229190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui "%s%s[+%" PRIx64 "]", (show_mark_for_unknown_symbol_ ? "*" : ""), 23071b533b5a2902c75901c9e3fc9da3befd53e54dcYabin Cui dso->FileName().c_str(), vaddr_in_file); 231c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso->AddUnknownSymbol(vaddr_in_file, name); 23215475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui symbol = dso->FindSymbol(vaddr_in_file); 23315475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui CHECK(symbol != nullptr); 23415475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui } else { 23515475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui symbol = &unknown_symbol_; 23615475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui } 23760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 2389970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui if (pvaddr_in_file != nullptr) { 2399970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui *pvaddr_in_file = vaddr_in_file; 2409970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui } 24116501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui if (pdso != nullptr) { 24216501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui *pdso = dso; 24316501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui } 24460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return symbol; 24560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 24673d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui 2476965d42c43f12fd2dfcca3c490b51edc67822586Yabin Cuiconst Symbol* ThreadTree::FindKernelSymbol(uint64_t ip) { 2486965d42c43f12fd2dfcca3c490b51edc67822586Yabin Cui const MapEntry* map = FindMap(nullptr, ip, true); 2499970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui return FindSymbol(map, ip, nullptr); 2506965d42c43f12fd2dfcca3c490b51edc67822586Yabin Cui} 2516965d42c43f12fd2dfcca3c490b51edc67822586Yabin Cui 252767dd17947f1ae9dd3d02f738d442a23ed76f2f6Yabin Cuivoid ThreadTree::ClearThreadAndMap() { 253b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui thread_tree_.clear(); 254b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui thread_comm_storage_.clear(); 255b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui kernel_map_tree_.clear(); 256b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui map_storage_.clear(); 257b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui} 258b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui 259c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cuivoid ThreadTree::AddDsoInfo(const std::string& file_path, uint32_t file_type, 260c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui uint64_t min_vaddr, std::vector<Symbol>* symbols) { 261c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui DsoType dso_type = static_cast<DsoType>(file_type); 262c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui Dso* dso = nullptr; 263c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui if (dso_type == DSO_KERNEL || dso_type == DSO_KERNEL_MODULE) { 264c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso = FindKernelDsoOrNew(file_path); 265c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui } else { 266c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso = FindUserDsoOrNew(file_path); 267c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui } 268c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso->SetMinVirtualAddress(min_vaddr); 269c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso->SetSymbols(symbols); 270c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui} 271c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui 272767dd17947f1ae9dd3d02f738d442a23ed76f2f6Yabin Cuivoid ThreadTree::Update(const Record& record) { 273b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui if (record.type() == PERF_RECORD_MMAP) { 274f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui const MmapRecord& r = *static_cast<const MmapRecord*>(&record); 275b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui if (r.InKernel()) { 276190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui AddKernelMap(r.data->addr, r.data->len, r.data->pgoff, 2779970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui r.sample_id.time_data.time, r.filename); 278f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui } else { 279190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui AddThreadMap(r.data->pid, r.data->tid, r.data->addr, r.data->len, 280190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui r.data->pgoff, r.sample_id.time_data.time, r.filename); 281f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui } 282b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } else if (record.type() == PERF_RECORD_MMAP2) { 283f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui const Mmap2Record& r = *static_cast<const Mmap2Record*>(&record); 284b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui if (r.InKernel()) { 285190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui AddKernelMap(r.data->addr, r.data->len, r.data->pgoff, 2869970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui r.sample_id.time_data.time, r.filename); 287f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui } else { 2889970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui std::string filename = (r.filename == DEFAULT_EXECNAME_FOR_THREAD_MMAP) 2899970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui ? "[unknown]" 2909970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui : r.filename; 291190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui AddThreadMap(r.data->pid, r.data->tid, r.data->addr, r.data->len, 292190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui r.data->pgoff, r.sample_id.time_data.time, filename); 29373d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui } 294b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } else if (record.type() == PERF_RECORD_COMM) { 295f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui const CommRecord& r = *static_cast<const CommRecord*>(&record); 296190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui AddThread(r.data->pid, r.data->tid, r.comm); 297b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } else if (record.type() == PERF_RECORD_FORK) { 298f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui const ForkRecord& r = *static_cast<const ForkRecord*>(&record); 299190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui ForkThread(r.data->pid, r.data->tid, r.data->ppid, r.data->ptid); 300b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } else if (record.type() == SIMPLE_PERF_RECORD_KERNEL_SYMBOL) { 301b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui const auto& r = *static_cast<const KernelSymbolRecord*>(&record); 3021761a271faf98050891ba6e918993225782c811aYabin Cui Dso::SetKallsyms(std::move(r.kallsyms)); 30373d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui } 30473d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui} 305767dd17947f1ae9dd3d02f738d442a23ed76f2f6Yabin Cui 30678fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cuistd::vector<Dso*> ThreadTree::GetAllDsos() const { 30778fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui std::vector<Dso*> result; 30878fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui result.push_back(kernel_dso_.get()); 30978fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui for (auto& p : module_dso_tree_) { 31078fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui result.push_back(p.second.get()); 31178fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui } 31278fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui for (auto& p : user_dso_tree_) { 31378fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui result.push_back(p.second.get()); 31478fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui } 31578fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui return result; 31678fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui} 31778fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui 318767dd17947f1ae9dd3d02f738d442a23ed76f2f6Yabin Cui} // namespace simpleperf 319