thread_tree.cpp revision 52190a377feeb1dccaae5034c51f0130c24dea09
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 48aa0dd19abe684059d0595f343395183b864157d2Yabin Cuivoid ThreadTree::SetThreadName(int pid, int tid, const std::string& comm) { 49aa0dd19abe684059d0595f343395183b864157d2Yabin Cui ThreadEntry* thread = FindThreadOrNew(pid, tid); 50aa0dd19abe684059d0595f343395183b864157d2Yabin Cui if (comm != thread->comm) { 51003b245939bae5e86ed53b3c6b333637dbc571b4Yabin Cui thread_comm_storage_.push_back( 52003b245939bae5e86ed53b3c6b333637dbc571b4Yabin Cui std::unique_ptr<std::string>(new std::string(comm))); 53aa0dd19abe684059d0595f343395183b864157d2Yabin Cui thread->comm = thread_comm_storage_.back()->c_str(); 54003b245939bae5e86ed53b3c6b333637dbc571b4Yabin Cui } 5560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 5660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 5760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cuivoid ThreadTree::ForkThread(int pid, int tid, int ppid, int ptid) { 5860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui ThreadEntry* parent = FindThreadOrNew(ppid, ptid); 5960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui ThreadEntry* child = FindThreadOrNew(pid, tid); 6060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui child->comm = parent->comm; 61aa0dd19abe684059d0595f343395183b864157d2Yabin Cui if (pid != ppid) { 62aa0dd19abe684059d0595f343395183b864157d2Yabin Cui // Copy maps from parent process. 63aa0dd19abe684059d0595f343395183b864157d2Yabin Cui *child->maps = *parent->maps; 64aa0dd19abe684059d0595f343395183b864157d2Yabin Cui } 6560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 6660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 6760a0ea96c0fb9e807c899759256df5e20bd904bdYabin CuiThreadEntry* ThreadTree::FindThreadOrNew(int pid, int tid) { 6860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto it = thread_tree_.find(tid); 6960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (it == thread_tree_.end()) { 70aa0dd19abe684059d0595f343395183b864157d2Yabin Cui return CreateThread(pid, tid); 7160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } else { 725f2a170a577258a2792bd768a8a776a562f4e6c2Yabin Cui if (pid != it->second.get()->pid) { 735f2a170a577258a2792bd768a8a776a562f4e6c2Yabin Cui // TODO: b/22185053. 749970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui LOG(DEBUG) << "unexpected (pid, tid) pair: expected (" 759970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui << it->second.get()->pid << ", " << tid << "), actual (" << pid 769970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui << ", " << tid << ")"; 775f2a170a577258a2792bd768a8a776a562f4e6c2Yabin Cui } 7860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 7960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return it->second.get(); 8060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 8160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 82aa0dd19abe684059d0595f343395183b864157d2Yabin CuiThreadEntry* ThreadTree::CreateThread(int pid, int tid) { 83aa0dd19abe684059d0595f343395183b864157d2Yabin Cui MapSet* maps = nullptr; 84aa0dd19abe684059d0595f343395183b864157d2Yabin Cui if (pid == tid) { 85aa0dd19abe684059d0595f343395183b864157d2Yabin Cui maps = new MapSet; 86aa0dd19abe684059d0595f343395183b864157d2Yabin Cui map_set_storage_.push_back(std::unique_ptr<MapSet>(maps)); 87aa0dd19abe684059d0595f343395183b864157d2Yabin Cui } else { 88aa0dd19abe684059d0595f343395183b864157d2Yabin Cui // Share maps among threads in the same thread group. 89aa0dd19abe684059d0595f343395183b864157d2Yabin Cui ThreadEntry* process = FindThreadOrNew(pid, pid); 90aa0dd19abe684059d0595f343395183b864157d2Yabin Cui maps = process->maps; 91aa0dd19abe684059d0595f343395183b864157d2Yabin Cui } 92aa0dd19abe684059d0595f343395183b864157d2Yabin Cui ThreadEntry* thread = new ThreadEntry{ 93aa0dd19abe684059d0595f343395183b864157d2Yabin Cui pid, tid, 94aa0dd19abe684059d0595f343395183b864157d2Yabin Cui "unknown", 95aa0dd19abe684059d0595f343395183b864157d2Yabin Cui maps, 96aa0dd19abe684059d0595f343395183b864157d2Yabin Cui }; 97aa0dd19abe684059d0595f343395183b864157d2Yabin Cui auto pair = thread_tree_.insert(std::make_pair(tid, std::unique_ptr<ThreadEntry>(thread))); 98aa0dd19abe684059d0595f343395183b864157d2Yabin Cui CHECK(pair.second); 99aa0dd19abe684059d0595f343395183b864157d2Yabin Cui return thread; 100aa0dd19abe684059d0595f343395183b864157d2Yabin Cui} 101aa0dd19abe684059d0595f343395183b864157d2Yabin Cui 1029970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuivoid ThreadTree::AddKernelMap(uint64_t start_addr, uint64_t len, uint64_t pgoff, 1039970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui uint64_t time, const std::string& filename) { 10460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui // kernel map len can be 0 when record command is not run in supervisor mode. 10560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (len == 0) { 10660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return; 10760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 108c84856093e8bf4350d30fc521dc0f1c800c5270bYabin Cui Dso* dso = FindKernelDsoOrNew(filename); 1099970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry* map = 1109970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui AllocateMap(MapEntry(start_addr, len, pgoff, time, dso, true)); 111aa0dd19abe684059d0595f343395183b864157d2Yabin Cui FixOverlappedMap(&kernel_maps_, map); 112aa0dd19abe684059d0595f343395183b864157d2Yabin Cui auto pair = kernel_maps_.insert(map); 11360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui CHECK(pair.second); 11460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 11560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 116c84856093e8bf4350d30fc521dc0f1c800c5270bYabin CuiDso* ThreadTree::FindKernelDsoOrNew(const std::string& filename) { 117b2465ad8bae68531dd9dbed88be469612cd7229aDaniel Friederich if (filename == DEFAULT_KERNEL_MMAP_NAME || 118b2465ad8bae68531dd9dbed88be469612cd7229aDaniel Friederich filename == DEFAULT_KERNEL_MMAP_NAME_PERF) { 11960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return kernel_dso_.get(); 12060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 12160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto it = module_dso_tree_.find(filename); 12260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (it == module_dso_tree_.end()) { 123c84856093e8bf4350d30fc521dc0f1c800c5270bYabin Cui module_dso_tree_[filename] = Dso::CreateDso(DSO_KERNEL_MODULE, filename); 12460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui it = module_dso_tree_.find(filename); 12560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 12660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return it->second.get(); 12760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 12860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 1299970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuivoid ThreadTree::AddThreadMap(int pid, int tid, uint64_t start_addr, 1309970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui uint64_t len, uint64_t pgoff, uint64_t time, 1319970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui const std::string& filename) { 13260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui ThreadEntry* thread = FindThreadOrNew(pid, tid); 13363a1c3d83a68e9d94f37b71afe76d0769d744448Yabin Cui Dso* dso = FindUserDsoOrNew(filename, start_addr); 1349970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry* map = 1359970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui AllocateMap(MapEntry(start_addr, len, pgoff, time, dso, false)); 136aa0dd19abe684059d0595f343395183b864157d2Yabin Cui FixOverlappedMap(thread->maps, map); 137aa0dd19abe684059d0595f343395183b864157d2Yabin Cui auto pair = thread->maps->insert(map); 13860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui CHECK(pair.second); 13960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 14060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 14163a1c3d83a68e9d94f37b71afe76d0769d744448Yabin CuiDso* ThreadTree::FindUserDsoOrNew(const std::string& filename, uint64_t start_addr) { 14260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto it = user_dso_tree_.find(filename); 14360a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (it == user_dso_tree_.end()) { 14463a1c3d83a68e9d94f37b71afe76d0769d744448Yabin Cui bool force_64bit = start_addr > UINT_MAX; 14563a1c3d83a68e9d94f37b71afe76d0769d744448Yabin Cui user_dso_tree_[filename] = Dso::CreateDso(DSO_ELF_FILE, filename, force_64bit); 14660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui it = user_dso_tree_.find(filename); 14760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 14860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return it->second.get(); 14960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 15060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 151547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin CuiMapEntry* ThreadTree::AllocateMap(const MapEntry& value) { 152547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui MapEntry* map = new MapEntry(value); 153547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui map_storage_.push_back(std::unique_ptr<MapEntry>(map)); 154547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui return map; 155547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui} 156547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui 157aa0dd19abe684059d0595f343395183b864157d2Yabin Cuivoid ThreadTree::FixOverlappedMap(MapSet* maps, const MapEntry* map) { 158aa0dd19abe684059d0595f343395183b864157d2Yabin Cui for (auto it = maps->begin(); it != maps->end();) { 159547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui if ((*it)->start_addr >= map->get_end_addr()) { 160547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui // No more overlapped maps. 161547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui break; 162547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 163547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui if ((*it)->get_end_addr() <= map->start_addr) { 164547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui ++it; 165547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } else { 166547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui MapEntry* old = *it; 167547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui if (old->start_addr < map->start_addr) { 1689970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry* before = AllocateMap( 1699970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry(old->start_addr, map->start_addr - old->start_addr, 1709970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui old->pgoff, old->time, old->dso, old->in_kernel)); 171aa0dd19abe684059d0595f343395183b864157d2Yabin Cui maps->insert(before); 172547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 173547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui if (old->get_end_addr() > map->get_end_addr()) { 1749970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui MapEntry* after = AllocateMap(MapEntry( 1759970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui map->get_end_addr(), old->get_end_addr() - map->get_end_addr(), 1769970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui map->get_end_addr() - old->start_addr + old->pgoff, old->time, 1779970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui old->dso, old->in_kernel)); 178aa0dd19abe684059d0595f343395183b864157d2Yabin Cui maps->insert(after); 179547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 180547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui 181aa0dd19abe684059d0595f343395183b864157d2Yabin Cui it = maps->erase(it); 182547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 183547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui } 184547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui} 185547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui 18660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cuistatic bool IsAddrInMap(uint64_t addr, const MapEntry* map) { 187547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui return (addr >= map->start_addr && addr < map->get_end_addr()); 18860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 18960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 190aa0dd19abe684059d0595f343395183b864157d2Yabin Cuistatic MapEntry* FindMapByAddr(const MapSet& maps, uint64_t addr) { 1919970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui // Construct a map_entry which is strictly after the searched map_entry, based 1929970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui // on MapComparator. 193547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui MapEntry find_map(addr, std::numeric_limits<uint64_t>::max(), 0, 194b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui std::numeric_limits<uint64_t>::max(), nullptr, false); 19560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui auto it = maps.upper_bound(&find_map); 19660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (it != maps.begin() && IsAddrInMap(addr, *--it)) { 19760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return *it; 19860a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 19960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return nullptr; 20060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 20160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 2029970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuiconst MapEntry* ThreadTree::FindMap(const ThreadEntry* thread, uint64_t ip, 2039970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui bool in_kernel) { 20460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui MapEntry* result = nullptr; 20560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (!in_kernel) { 206aa0dd19abe684059d0595f343395183b864157d2Yabin Cui result = FindMapByAddr(*thread->maps, ip); 20760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } else { 208aa0dd19abe684059d0595f343395183b864157d2Yabin Cui result = FindMapByAddr(kernel_maps_, ip); 20960a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 21060a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return result != nullptr ? result : &unknown_map_; 21160a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 21260a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui 213b64a86327afe2b77dab7d724d363386c674163b6Yabin Cuiconst MapEntry* ThreadTree::FindMap(const ThreadEntry* thread, uint64_t ip) { 214aa0dd19abe684059d0595f343395183b864157d2Yabin Cui MapEntry* result = FindMapByAddr(*thread->maps, ip); 215b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui if (result != nullptr) { 216b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui return result; 217b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui } 218aa0dd19abe684059d0595f343395183b864157d2Yabin Cui result = FindMapByAddr(kernel_maps_, ip); 219b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui return result != nullptr ? result : &unknown_map_; 220b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui} 221b64a86327afe2b77dab7d724d363386c674163b6Yabin Cui 2229970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cuiconst Symbol* ThreadTree::FindSymbol(const MapEntry* map, uint64_t ip, 22316501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui uint64_t* pvaddr_in_file, Dso** pdso) { 224547c60e4dd29c5788d5948ad348acf33a55d6ed6Yabin Cui uint64_t vaddr_in_file; 22515475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui Dso* dso = map->dso; 22616501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui vaddr_in_file = ip - map->start_addr + map->dso->MinVirtualAddress(); 22715475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui const Symbol* symbol = dso->FindSymbol(vaddr_in_file); 22815475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui if (symbol == nullptr && map->in_kernel && dso != kernel_dso_.get()) { 229b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui // It is in a kernel module, but we can't find the kernel module file, or 230b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui // the kernel module file contains no symbol. Try finding the symbol in 231b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui // /proc/kallsyms. 232b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui vaddr_in_file = ip; 23315475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui dso = kernel_dso_.get(); 23415475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui symbol = dso->FindSymbol(vaddr_in_file); 235b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } 23660a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui if (symbol == nullptr) { 23715475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui if (show_ip_for_unknown_symbol_) { 23815475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui std::string name = android::base::StringPrintf( 239190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui "%s%s[+%" PRIx64 "]", (show_mark_for_unknown_symbol_ ? "*" : ""), 24071b533b5a2902c75901c9e3fc9da3befd53e54dcYabin Cui dso->FileName().c_str(), vaddr_in_file); 241c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso->AddUnknownSymbol(vaddr_in_file, name); 24215475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui symbol = dso->FindSymbol(vaddr_in_file); 24315475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui CHECK(symbol != nullptr); 24415475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui } else { 24515475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui symbol = &unknown_symbol_; 24615475e6ff1bc0273f666ef1bd6c2f7a50c4b948cYabin Cui } 24760a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui } 2489970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui if (pvaddr_in_file != nullptr) { 2499970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui *pvaddr_in_file = vaddr_in_file; 2509970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui } 25116501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui if (pdso != nullptr) { 25216501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui *pdso = dso; 25316501ffbd73483c498dde1ea4ad2670da7c9df55Yabin Cui } 25460a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui return symbol; 25560a0ea96c0fb9e807c899759256df5e20bd904bdYabin Cui} 25673d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui 2576965d42c43f12fd2dfcca3c490b51edc67822586Yabin Cuiconst Symbol* ThreadTree::FindKernelSymbol(uint64_t ip) { 2586965d42c43f12fd2dfcca3c490b51edc67822586Yabin Cui const MapEntry* map = FindMap(nullptr, ip, true); 2599970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui return FindSymbol(map, ip, nullptr); 2606965d42c43f12fd2dfcca3c490b51edc67822586Yabin Cui} 2616965d42c43f12fd2dfcca3c490b51edc67822586Yabin Cui 262767dd17947f1ae9dd3d02f738d442a23ed76f2f6Yabin Cuivoid ThreadTree::ClearThreadAndMap() { 263b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui thread_tree_.clear(); 264b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui thread_comm_storage_.clear(); 265aa0dd19abe684059d0595f343395183b864157d2Yabin Cui map_set_storage_.clear(); 266aa0dd19abe684059d0595f343395183b864157d2Yabin Cui kernel_maps_.clear(); 267b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui map_storage_.clear(); 268b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui} 269b7f481f59126456b0e708a76f40fa88224f3531bYabin Cui 270c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cuivoid ThreadTree::AddDsoInfo(const std::string& file_path, uint32_t file_type, 271c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui uint64_t min_vaddr, std::vector<Symbol>* symbols) { 272c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui DsoType dso_type = static_cast<DsoType>(file_type); 273c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui Dso* dso = nullptr; 274c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui if (dso_type == DSO_KERNEL || dso_type == DSO_KERNEL_MODULE) { 275c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso = FindKernelDsoOrNew(file_path); 276c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui } else { 277c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso = FindUserDsoOrNew(file_path); 278c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui } 279c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso->SetMinVirtualAddress(min_vaddr); 280c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui dso->SetSymbols(symbols); 281c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui} 282c5b4a3106a0845d1bd8fd2c1b1c724eeb719ec62Yabin Cui 283767dd17947f1ae9dd3d02f738d442a23ed76f2f6Yabin Cuivoid ThreadTree::Update(const Record& record) { 284b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui if (record.type() == PERF_RECORD_MMAP) { 285f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui const MmapRecord& r = *static_cast<const MmapRecord*>(&record); 286b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui if (r.InKernel()) { 287190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui AddKernelMap(r.data->addr, r.data->len, r.data->pgoff, 2889970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui r.sample_id.time_data.time, r.filename); 289f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui } else { 290190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui AddThreadMap(r.data->pid, r.data->tid, r.data->addr, r.data->len, 291190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui r.data->pgoff, r.sample_id.time_data.time, r.filename); 292f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui } 293b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } else if (record.type() == PERF_RECORD_MMAP2) { 294f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui const Mmap2Record& r = *static_cast<const Mmap2Record*>(&record); 295b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui if (r.InKernel()) { 296190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui AddKernelMap(r.data->addr, r.data->len, r.data->pgoff, 2979970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui r.sample_id.time_data.time, r.filename); 298f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui } else { 2999970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui std::string filename = (r.filename == DEFAULT_EXECNAME_FOR_THREAD_MMAP) 3009970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui ? "[unknown]" 3019970a2344333f2c19d9126cfec4f833f50ff2f22Yabin Cui : r.filename; 302190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui AddThreadMap(r.data->pid, r.data->tid, r.data->addr, r.data->len, 303190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui r.data->pgoff, r.sample_id.time_data.time, filename); 30473d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui } 305b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } else if (record.type() == PERF_RECORD_COMM) { 306f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui const CommRecord& r = *static_cast<const CommRecord*>(&record); 307aa0dd19abe684059d0595f343395183b864157d2Yabin Cui SetThreadName(r.data->pid, r.data->tid, r.comm); 308b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } else if (record.type() == PERF_RECORD_FORK) { 309f8258896a364b6c996b6d6816b88849cc8d0a488Yabin Cui const ForkRecord& r = *static_cast<const ForkRecord*>(&record); 310190a848fb2d4f502372b2528c55ca1f520e90609Yabin Cui ForkThread(r.data->pid, r.data->tid, r.data->ppid, r.data->ptid); 311b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui } else if (record.type() == SIMPLE_PERF_RECORD_KERNEL_SYMBOL) { 312b42129797f17f990ea5a88c6bdc7446000cc361cYabin Cui const auto& r = *static_cast<const KernelSymbolRecord*>(&record); 3131761a271faf98050891ba6e918993225782c811aYabin Cui Dso::SetKallsyms(std::move(r.kallsyms)); 31473d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui } 31573d8078e6e5ef92b2301386ce96260bd99efacbbYabin Cui} 316767dd17947f1ae9dd3d02f738d442a23ed76f2f6Yabin Cui 31778fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cuistd::vector<Dso*> ThreadTree::GetAllDsos() const { 31878fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui std::vector<Dso*> result; 31978fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui result.push_back(kernel_dso_.get()); 32078fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui for (auto& p : module_dso_tree_) { 32178fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui result.push_back(p.second.get()); 32278fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui } 32378fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui for (auto& p : user_dso_tree_) { 32478fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui result.push_back(p.second.get()); 32578fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui } 32698c7584c1c6cb93ad3e0f66e2a6f1d6b2d8fb878Yabin Cui result.push_back(unknown_dso_.get()); 32778fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui return result; 32878fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui} 32978fddd140931adf704061f82e3c9fcb03362f8d0Yabin Cui 33052190a377feeb1dccaae5034c51f0130c24dea09Yabin Cuistd::vector<const ThreadEntry*> ThreadTree::GetAllThreads() const { 33152190a377feeb1dccaae5034c51f0130c24dea09Yabin Cui std::vector<const ThreadEntry*> threads; 33252190a377feeb1dccaae5034c51f0130c24dea09Yabin Cui for (auto& pair : thread_tree_) { 33352190a377feeb1dccaae5034c51f0130c24dea09Yabin Cui threads.push_back(pair.second.get()); 33452190a377feeb1dccaae5034c51f0130c24dea09Yabin Cui } 33552190a377feeb1dccaae5034c51f0130c24dea09Yabin Cui return threads; 33652190a377feeb1dccaae5034c51f0130c24dea09Yabin Cui} 33752190a377feeb1dccaae5034c51f0130c24dea09Yabin Cui 338767dd17947f1ae9dd3d02f738d442a23ed76f2f6Yabin Cui} // namespace simpleperf 339