utils.c revision 26288202e7bdf2e897a11bf31a15685d7c20945f
1f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* 2f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * Copyright (C) 2008 The Android Open Source Project 3f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * 4f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * Licensed under the Apache License, Version 2.0 (the "License"); 5f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * you may not use this file except in compliance with the License. 6f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * You may obtain a copy of the License at 7f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * 8f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * http://www.apache.org/licenses/LICENSE-2.0 9f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * 10f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * Unless required by applicable law or agreed to in writing, software 11f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * distributed under the License is distributed on an "AS IS" BASIS, 12f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * See the License for the specific language governing permissions and 14f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross * limitations under the License. 15f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross */ 16f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 17f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <dirent.h> 18f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <errno.h> 19f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <fcntl.h> 20f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <limits.h> 21f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <poll.h> 22f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <signal.h> 23f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <stdarg.h> 24f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <stdio.h> 25f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <stdlib.h> 26f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <string.h> 27f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/inotify.h> 28f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/stat.h> 29f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/time.h> 30f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/wait.h> 31f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <sys/klog.h> 32f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <time.h> 33f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <unistd.h> 34e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau#include <sys/prctl.h> 35f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 36bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown#include <cutils/debugger.h> 37f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <cutils/properties.h> 38f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <cutils/sockets.h> 39f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include <private/android_filesystem_config.h> 40f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 41957983787d7a753d34b582ae0165160f4ebf815cRobert Craig#include <selinux/android.h> 42957983787d7a753d34b582ae0165160f4ebf815cRobert Craig 43f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross#include "dumpstate.h" 44f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 45bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown/* list of native processes to include in the native dumps */ 46bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownstatic const char* native_processes_to_dump[] = { 471fc4f80fc38f782f128102795481924a97a2d3c5James Dong "/system/bin/drmserver", 48bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown "/system/bin/mediaserver", 49bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown "/system/bin/sdcard", 50bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown "/system/bin/surfaceflinger", 51bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown NULL, 52bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown}; 53bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 540c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossstatic void __for_each_pid(void (*helper)(int, const char *, void *), const char *header, void *arg) { 55f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross DIR *d; 56f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct dirent *de; 57f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 58f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!(d = opendir("/proc"))) { 59f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Failed to open /proc (%s)\n", strerror(errno)); 60f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 61f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 62f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 63f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("\n------ %s ------\n", header); 64f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross while ((de = readdir(d))) { 65f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int pid; 66f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd; 67f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char cmdpath[255]; 68f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char cmdline[255]; 69f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 70f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!(pid = atoi(de->d_name))) { 71f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross continue; 72f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 73f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 74f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross sprintf(cmdpath,"/proc/%d/cmdline", pid); 75f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross memset(cmdline, 0, sizeof(cmdline)); 76f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if ((fd = open(cmdpath, O_RDONLY)) < 0) { 77f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strcpy(cmdline, "N/A"); 78f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } else { 790c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross read(fd, cmdline, sizeof(cmdline) - 1); 80f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 81f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 820c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross helper(pid, cmdline, arg); 83f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 84f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 85f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross closedir(d); 86f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 87f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 880c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossstatic void for_each_pid_helper(int pid, const char *cmdline, void *arg) { 890c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross for_each_pid_func *func = arg; 900c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross func(pid, cmdline); 910c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross} 920c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 930c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossvoid for_each_pid(for_each_pid_func func, const char *header) { 940c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross __for_each_pid(for_each_pid_helper, header, func); 950c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross} 960c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 970c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossstatic void for_each_tid_helper(int pid, const char *cmdline, void *arg) { 980c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross DIR *d; 990c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross struct dirent *de; 1000c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char taskpath[255]; 1010c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross for_each_tid_func *func = arg; 1020c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1030c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross sprintf(taskpath, "/proc/%d/task", pid); 1040c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1050c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if (!(d = opendir(taskpath))) { 1060c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross printf("Failed to open %s (%s)\n", taskpath, strerror(errno)); 1070c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross return; 1080c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1090c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1100c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross func(pid, pid, cmdline); 1110c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1120c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross while ((de = readdir(d))) { 1130c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross int tid; 1140c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross int fd; 1150c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char commpath[255]; 1160c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char comm[255]; 1170c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1180c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if (!(tid = atoi(de->d_name))) { 1190c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross continue; 1200c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1210c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1220c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if (tid == pid) 1230c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross continue; 1240c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1250c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross sprintf(commpath,"/proc/%d/comm", tid); 1261493a3974a725d6873f317b774be333ca035a64cColin Cross memset(comm, 0, sizeof(comm)); 1270c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if ((fd = open(commpath, O_RDONLY)) < 0) { 1280c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross strcpy(comm, "N/A"); 1290c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } else { 1300c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char *c; 1310c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross read(fd, comm, sizeof(comm) - 1); 1320c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross close(fd); 1330c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1340c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross c = strrchr(comm, '\n'); 1350c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross if (c) { 1360c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross *c = '\0'; 1370c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1380c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1390c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross func(pid, tid, comm); 1400c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross } 1410c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1420c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross closedir(d); 1430c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross} 1440c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1450c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossvoid for_each_tid(for_each_tid_func func, const char *header) { 1460c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross __for_each_pid(for_each_tid_helper, header, func); 1470c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross} 1480c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1490c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Crossvoid show_wchan(int pid, int tid, const char *name) { 150f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char path[255]; 151f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char buffer[255]; 152f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd; 1530c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross char name_buffer[255]; 154f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 155f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross memset(buffer, 0, sizeof(buffer)); 156f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 1570c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross sprintf(path, "/proc/%d/wchan", tid); 158f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if ((fd = open(path, O_RDONLY)) < 0) { 159f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Failed to open '%s' (%s)\n", path, strerror(errno)); 160f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 161f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 162f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 163f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (read(fd, buffer, sizeof(buffer)) < 0) { 164f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Failed to read '%s' (%s)\n", path, strerror(errno)); 165f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross goto out_close; 166f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 167f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 1680c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross snprintf(name_buffer, sizeof(name_buffer), "%*s%s", 1690c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross pid == tid ? 0 : 3, "", name); 1700c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross 1710c22e8b31651caf12a2b4d4acef5bc65d486e570Colin Cross printf("%-7d %-32s %s\n", tid, name_buffer, buffer); 172f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 173f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossout_close: 174f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 175f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 176f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 177f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 178f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid do_dmesg() { 179f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("------ KERNEL LOG (dmesg) ------\n"); 1805f87b31d8076dff08b2363961b07fc052364fe95Elliott Hughes /* Get size of kernel buffer */ 1815f87b31d8076dff08b2363961b07fc052364fe95Elliott Hughes int size = klogctl(KLOG_SIZE_BUFFER, NULL, 0); 182f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (size <= 0) { 183f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Unexpected klogctl return value: %d\n\n", size); 184f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 185f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 186f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char *buf = (char *) malloc(size + 1); 187f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (buf == NULL) { 188f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("memory allocation failed\n\n"); 189f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 190f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 191f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int retval = klogctl(KLOG_READ_ALL, buf, size); 192f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (retval < 0) { 193f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("klogctl failure\n\n"); 194f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross free(buf); 195f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 196f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 197f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross buf[retval] = '\0'; 198f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("%s\n\n", buf); 199f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross free(buf); 200f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 201f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 202f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 203f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid do_showmap(int pid, const char *name) { 204f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char title[255]; 205f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char arg[255]; 206f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 207f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross sprintf(title, "SHOW MAP %d (%s)", pid, name); 208f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross sprintf(arg, "%d", pid); 209f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross run_command(title, 10, SU_PATH, "root", "showmap", arg, NULL); 210f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 211f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 212f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* prints the contents of a file */ 213f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossint dump_file(const char *title, const char* path) { 214f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char buffer[32768]; 215f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd = open(path, O_RDONLY); 216f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 217f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int err = errno; 218f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("------ %s (%s) ------\n", title, path); 219f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: %s\n", path, strerror(err)); 220f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("\n"); 221f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return -1; 222f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 223f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 224f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("------ %s (%s", title, path); 225f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 226f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) { 227f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct stat st; 228f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (memcmp(path, "/proc/", 6) && memcmp(path, "/sys/", 5) && !fstat(fd, &st)) { 229f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char stamp[80]; 230f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross time_t mtime = st.st_mtime; 231f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strftime(stamp, sizeof(stamp), "%Y-%m-%d %H:%M:%S", localtime(&mtime)); 232f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf(": %s", stamp); 233f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 234f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf(") ------\n"); 235f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 236f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 237f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int newline = 0; 238f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (;;) { 239f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int ret = read(fd, buffer, sizeof(buffer)); 240f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (ret > 0) { 241f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross newline = (buffer[ret - 1] == '\n'); 242f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross ret = fwrite(buffer, ret, 1, stdout); 243f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 244f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (ret <= 0) break; 245f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 246f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 247f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 248f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!newline) printf("\n"); 249f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("\n"); 250f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return 0; 251f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 252f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 253f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* forks a command and waits for it to finish */ 254f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossint run_command(const char *title, int timeout_seconds, const char *command, ...) { 255f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 256f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross clock_t start = clock(); 257f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross pid_t pid = fork(); 258f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 259f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* handle error case */ 260f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pid < 0) { 261f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** fork: %s\n", strerror(errno)); 262f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return pid; 263f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 264f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 265f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* handle child case */ 266f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pid == 0) { 267f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross const char *args[1024] = {command}; 268f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross size_t arg; 269f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 270e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau /* make sure the child dies when dumpstate dies */ 271e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau prctl(PR_SET_PDEATHSIG, SIGKILL); 272e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau 273f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross va_list ap; 274f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross va_start(ap, command); 275f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("------ %s (%s", title, command); 276f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (arg = 1; arg < sizeof(args) / sizeof(args[0]); ++arg) { 277f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross args[arg] = va_arg(ap, const char *); 278f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (args[arg] == NULL) break; 279f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf(" %s", args[arg]); 280f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 281f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf(") ------\n"); 282f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 283f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 284f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross execvp(command, (char**) args); 285f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** exec(%s): %s\n", command, strerror(errno)); 286f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 287f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross _exit(-1); 288f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 289f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 290f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* handle parent case */ 291f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (;;) { 292f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int status; 293f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross pid_t p = waitpid(pid, &status, WNOHANG); 294f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross float elapsed = (float) (clock() - start) / CLOCKS_PER_SEC; 295f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (p == pid) { 296f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (WIFSIGNALED(status)) { 297f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: Killed by signal %d\n", command, WTERMSIG(status)); 298f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } else if (WIFEXITED(status) && WEXITSTATUS(status) > 0) { 299f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: Exit code %d\n", command, WEXITSTATUS(status)); 300f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 301f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("[%s: %.1fs elapsed]\n\n", command, elapsed); 302f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return status; 303f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 304f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 305f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (timeout_seconds && elapsed > timeout_seconds) { 306f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: Timed out after %.1fs (killing pid %d)\n", command, elapsed, pid); 307f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross kill(pid, SIGTERM); 308f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return -1; 309f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 310f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 311f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross usleep(100000); // poll every 0.1 sec 312f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 313f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 314f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 315f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crosssize_t num_props = 0; 316f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossstatic char* props[2000]; 317f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 318f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossstatic void print_prop(const char *key, const char *name, void *user) { 319f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross (void) user; 320f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (num_props < sizeof(props) / sizeof(props[0])) { 321f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char buf[PROPERTY_KEY_MAX + PROPERTY_VALUE_MAX + 10]; 322f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross snprintf(buf, sizeof(buf), "[%s]: [%s]\n", key, name); 323f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross props[num_props++] = strdup(buf); 324f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 325f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 326f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 327f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossstatic int compare_prop(const void *a, const void *b) { 328f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return strcmp(*(char * const *) a, *(char * const *) b); 329f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 330f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 331f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* prints all the system properties */ 332f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid print_properties() { 333f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross size_t i; 334f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross num_props = 0; 335f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross property_list(print_prop, NULL); 336f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross qsort(&props, num_props, sizeof(props[0]), compare_prop); 337f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 338f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("------ SYSTEM PROPERTIES ------\n"); 339f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (i = 0; i < num_props; ++i) { 340f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fputs(props[i], stdout); 341f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross free(props[i]); 342f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 343f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("\n"); 344f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 345f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 346f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* redirect output to a service control socket */ 347f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid redirect_to_socket(FILE *redirect, const char *service) { 348f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int s = android_get_control_socket(service); 349f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (s < 0) { 350f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "android_get_control_socket(%s): %s\n", service, strerror(errno)); 351f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 352f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 353f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (listen(s, 4) < 0) { 354f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "listen(control socket): %s\n", strerror(errno)); 355f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 356f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 357f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 358f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct sockaddr addr; 359f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross socklen_t alen = sizeof(addr); 360f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd = accept(s, &addr, &alen); 361f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 362f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "accept(control socket): %s\n", strerror(errno)); 363f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 364f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 365f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 366f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(redirect); 367f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fd, fileno(redirect)); 368f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 369f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 370f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 371f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* redirect output to a file, optionally gzipping; returns gzip pid (or -1) */ 372f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crosspid_t redirect_to_file(FILE *redirect, char *path, int gzip_level) { 373f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char *chp = path; 374f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 375f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* skip initial slash */ 376f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (chp[0] == '/') 377f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross chp++; 378f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 379f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* create leading directories, if necessary */ 380f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross while (chp && chp[0]) { 381f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross chp = strchr(chp, '/'); 382f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (chp) { 383f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross *chp = 0; 38427f9e6d849fce956c9b8f1ad5c3d9a954501a76bJeff Sharkey mkdir(path, 0770); /* drwxrwx--- */ 385f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross *chp++ = '/'; 386f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 387f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 388f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 389f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); 390f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 391f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "%s: %s\n", path, strerror(errno)); 392f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 393f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 394f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 395f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross pid_t gzip_pid = -1; 396f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (gzip_level > 0) { 397f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fds[2]; 398f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pipe(fds)) { 399f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "pipe: %s\n", strerror(errno)); 400f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 401f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 402f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 403f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(redirect); 404f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 405f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 406f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross gzip_pid = fork(); 407f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (gzip_pid < 0) { 408f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "fork: %s\n", strerror(errno)); 409f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 410f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 411f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 412f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (gzip_pid == 0) { 413f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fds[0], STDIN_FILENO); 414f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fd, STDOUT_FILENO); 415f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 416f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 417f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fds[0]); 418f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fds[1]); 419f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 420f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char level[10]; 421f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross snprintf(level, sizeof(level), "-%d", gzip_level); 422f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross execlp("gzip", "gzip", level, NULL); 423f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "exec(gzip): %s\n", strerror(errno)); 424f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross _exit(-1); 425f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 426f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 427f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 428f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fds[0]); 429f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fd = fds[1]; 430f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 431f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 432f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fd, fileno(redirect)); 433f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 434f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return gzip_pid; 435f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 436f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 437bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownstatic bool should_dump_native_traces(const char* path) { 438bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown for (const char** p = native_processes_to_dump; *p; p++) { 439bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (!strcmp(*p, path)) { 440bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown return true; 441bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 442bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 443bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown return false; 444bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown} 445bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 446bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown/* dump Dalvik and native stack traces, return the trace file location (NULL if none) */ 447bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownconst char *dump_traces() { 448bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown const char* result = NULL; 449bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 450f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char traces_path[PROPERTY_VALUE_MAX] = ""; 451f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross property_get("dalvik.vm.stack-trace-file", traces_path, ""); 452f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!traces_path[0]) return NULL; 453f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 454f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* move the old traces.txt (if any) out of the way temporarily */ 455f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char anr_traces_path[PATH_MAX]; 456f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcpy(anr_traces_path, traces_path, sizeof(anr_traces_path)); 457f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcat(anr_traces_path, ".anr", sizeof(anr_traces_path)); 458f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (rename(traces_path, anr_traces_path) && errno != ENOENT) { 459f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "rename(%s, %s): %s\n", traces_path, anr_traces_path, strerror(errno)); 460f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return NULL; // Can't rename old traces.txt -- no permission? -- leave it alone instead 461f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 462f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 463f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* make the directory if necessary */ 464f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char anr_traces_dir[PATH_MAX]; 465f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcpy(anr_traces_dir, traces_path, sizeof(anr_traces_dir)); 466f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char *slash = strrchr(anr_traces_dir, '/'); 467f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (slash != NULL) { 468f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross *slash = '\0'; 469f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!mkdir(anr_traces_dir, 0775)) { 470f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross chown(anr_traces_dir, AID_SYSTEM, AID_SYSTEM); 471c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich chmod(anr_traces_dir, 0775); 47226288202e7bdf2e897a11bf31a15685d7c20945fStephen Smalley if (selinux_android_restorecon(anr_traces_dir, 0) == -1) { 473957983787d7a753d34b582ae0165160f4ebf815cRobert Craig fprintf(stderr, "restorecon failed for %s: %s\n", anr_traces_dir, strerror(errno)); 474957983787d7a753d34b582ae0165160f4ebf815cRobert Craig } 475f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } else if (errno != EEXIST) { 476f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "mkdir(%s): %s\n", anr_traces_dir, strerror(errno)); 477f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return NULL; 478f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 479f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 480f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 481f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* create a new, empty traces.txt file to receive stack dumps */ 482d51820e8dea4f5bd9d06ff22335bead7409864b2Nick Kralevich int fd = open(traces_path, O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW, 0666); /* -rw-rw-rw- */ 483f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 484f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "%s: %s\n", traces_path, strerror(errno)); 485f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return NULL; 486f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 487c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich int chmod_ret = fchmod(fd, 0666); 488c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich if (chmod_ret < 0) { 489c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich fprintf(stderr, "fchmod on %s failed: %s\n", traces_path, strerror(errno)); 490c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich close(fd); 491c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich return NULL; 492c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich } 493f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 494f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* walk /proc and kill -QUIT all Dalvik processes */ 495f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross DIR *proc = opendir("/proc"); 496f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (proc == NULL) { 497f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "/proc: %s\n", strerror(errno)); 498bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_fd; 499f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 500f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 501f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* use inotify to find when processes are done dumping */ 502f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int ifd = inotify_init(); 503f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (ifd < 0) { 504f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "inotify_init: %s\n", strerror(errno)); 505bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_fd; 506f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 507f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 508f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int wfd = inotify_add_watch(ifd, traces_path, IN_CLOSE_WRITE); 509f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (wfd < 0) { 510f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "inotify_add_watch(%s): %s\n", traces_path, strerror(errno)); 511bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_ifd; 512f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 513f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 514f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct dirent *d; 515f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int dalvik_found = 0; 516f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross while ((d = readdir(proc))) { 517f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int pid = atoi(d->d_name); 518f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pid <= 0) continue; 519f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 520bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown char path[PATH_MAX]; 521bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown char data[PATH_MAX]; 522f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross snprintf(path, sizeof(path), "/proc/%d/exe", pid); 523bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown ssize_t len = readlink(path, data, sizeof(data) - 1); 524bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (len <= 0) { 525f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross continue; 526f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 527bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown data[len] = '\0'; 528f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 529bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (!strcmp(data, "/system/bin/app_process")) { 530bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown /* skip zygote -- it won't dump its stack anyway */ 531bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); 532bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown int fd = open(path, O_RDONLY); 533bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown len = read(fd, data, sizeof(data) - 1); 534bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown close(fd); 535bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (len <= 0) { 536bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown continue; 537bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 538bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown data[len] = '\0'; 539bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (!strcmp(data, "zygote")) { 540bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown continue; 541bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 542bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 543bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown ++dalvik_found; 544bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (kill(pid, SIGQUIT)) { 545bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "kill(%d, SIGQUIT): %s\n", pid, strerror(errno)); 546bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown continue; 547bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 548bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 549bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown /* wait for the writable-close notification from inotify */ 550bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown struct pollfd pfd = { ifd, POLLIN, 0 }; 551bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown int ret = poll(&pfd, 1, 200); /* 200 msec timeout */ 552bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (ret < 0) { 553bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "poll: %s\n", strerror(errno)); 554bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else if (ret == 0) { 555bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "warning: timed out dumping pid %d\n", pid); 556bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else { 557bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown struct inotify_event ie; 558bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown read(ifd, &ie, sizeof(ie)); 559bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 560bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else if (should_dump_native_traces(data)) { 561bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown /* dump native process if appropriate */ 562bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (lseek(fd, 0, SEEK_END) < 0) { 563bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "lseek: %s\n", strerror(errno)); 564bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else { 565bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown dump_backtrace_to_file(pid, fd); 566bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 567f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 568f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 569f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 570f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (dalvik_found == 0) { 571f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "Warning: no Dalvik processes found to dump stacks\n"); 572f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 573f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 574f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross static char dump_traces_path[PATH_MAX]; 575f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcpy(dump_traces_path, traces_path, sizeof(dump_traces_path)); 576f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcat(dump_traces_path, ".bugreport", sizeof(dump_traces_path)); 577f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (rename(traces_path, dump_traces_path)) { 578f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "rename(%s, %s): %s\n", traces_path, dump_traces_path, strerror(errno)); 579bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_ifd; 580f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 581bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown result = dump_traces_path; 582f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 583f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* replace the saved [ANR] traces.txt file */ 584f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross rename(anr_traces_path, traces_path); 585bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 586bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownerror_close_ifd: 587bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown close(ifd); 588bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownerror_close_fd: 589bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown close(fd); 590bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown return result; 591f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 592f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 593f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid play_sound(const char* path) { 594f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross run_command(NULL, 5, "/system/bin/stagefright", "-o", "-a", path, NULL); 595f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 596