utils.cpp revision 957983787d7a753d34b582ae0165160f4ebf815c
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 54f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid for_each_pid(void (*func)(int, const char *), const char *header) { 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 { 79f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross read(fd, cmdline, sizeof(cmdline)); 80f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 81f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 82f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross func(pid, cmdline); 83f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 84f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 85f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross closedir(d); 86f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 87f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 88f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid show_wchan(int pid, const char *name) { 89f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char path[255]; 90f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char buffer[255]; 91f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd; 92f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 93f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross memset(buffer, 0, sizeof(buffer)); 94f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 95f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross sprintf(path, "/proc/%d/wchan", pid); 96f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if ((fd = open(path, O_RDONLY)) < 0) { 97f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Failed to open '%s' (%s)\n", path, strerror(errno)); 98f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 99f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 100f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 101f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (read(fd, buffer, sizeof(buffer)) < 0) { 102f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Failed to read '%s' (%s)\n", path, strerror(errno)); 103f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross goto out_close; 104f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 105f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 106f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("%-7d %-32s %s\n", pid, name, buffer); 107f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 108f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossout_close: 109f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 110f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 111f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 112f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 113f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid do_dmesg() { 114f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("------ KERNEL LOG (dmesg) ------\n"); 1155f87b31d8076dff08b2363961b07fc052364fe95Elliott Hughes /* Get size of kernel buffer */ 1165f87b31d8076dff08b2363961b07fc052364fe95Elliott Hughes int size = klogctl(KLOG_SIZE_BUFFER, NULL, 0); 117f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (size <= 0) { 118f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("Unexpected klogctl return value: %d\n\n", size); 119f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 120f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 121f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char *buf = (char *) malloc(size + 1); 122f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (buf == NULL) { 123f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("memory allocation failed\n\n"); 124f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 125f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 126f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int retval = klogctl(KLOG_READ_ALL, buf, size); 127f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (retval < 0) { 128f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("klogctl failure\n\n"); 129f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross free(buf); 130f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 131f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 132f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross buf[retval] = '\0'; 133f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("%s\n\n", buf); 134f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross free(buf); 135f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return; 136f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 137f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 138f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid do_showmap(int pid, const char *name) { 139f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char title[255]; 140f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char arg[255]; 141f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 142f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross sprintf(title, "SHOW MAP %d (%s)", pid, name); 143f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross sprintf(arg, "%d", pid); 144f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross run_command(title, 10, SU_PATH, "root", "showmap", arg, NULL); 145f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 146f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 147f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* prints the contents of a file */ 148f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossint dump_file(const char *title, const char* path) { 149f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char buffer[32768]; 150f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd = open(path, O_RDONLY); 151f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 152f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int err = errno; 153f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("------ %s (%s) ------\n", title, path); 154f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: %s\n", path, strerror(err)); 155f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("\n"); 156f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return -1; 157f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 158f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 159f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("------ %s (%s", title, path); 160f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 161f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) { 162f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct stat st; 163f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (memcmp(path, "/proc/", 6) && memcmp(path, "/sys/", 5) && !fstat(fd, &st)) { 164f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char stamp[80]; 165f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross time_t mtime = st.st_mtime; 166f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strftime(stamp, sizeof(stamp), "%Y-%m-%d %H:%M:%S", localtime(&mtime)); 167f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf(": %s", stamp); 168f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 169f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf(") ------\n"); 170f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 171f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 172f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int newline = 0; 173f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (;;) { 174f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int ret = read(fd, buffer, sizeof(buffer)); 175f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (ret > 0) { 176f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross newline = (buffer[ret - 1] == '\n'); 177f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross ret = fwrite(buffer, ret, 1, stdout); 178f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 179f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (ret <= 0) break; 180f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 181f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 182f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 183f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!newline) printf("\n"); 184f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("\n"); 185f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return 0; 186f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 187f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 188f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* forks a command and waits for it to finish */ 189f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossint run_command(const char *title, int timeout_seconds, const char *command, ...) { 190f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 191f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross clock_t start = clock(); 192f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross pid_t pid = fork(); 193f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 194f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* handle error case */ 195f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pid < 0) { 196f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** fork: %s\n", strerror(errno)); 197f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return pid; 198f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 199f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 200f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* handle child case */ 201f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pid == 0) { 202f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross const char *args[1024] = {command}; 203f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross size_t arg; 204f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 205e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau /* make sure the child dies when dumpstate dies */ 206e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau prctl(PR_SET_PDEATHSIG, SIGKILL); 207e7b6cf13f94f66ea446c95ab34040b0a577e43dcJohn Michelau 208f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross va_list ap; 209f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross va_start(ap, command); 210f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("------ %s (%s", title, command); 211f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (arg = 1; arg < sizeof(args) / sizeof(args[0]); ++arg) { 212f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross args[arg] = va_arg(ap, const char *); 213f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (args[arg] == NULL) break; 214f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf(" %s", args[arg]); 215f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 216f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf(") ------\n"); 217f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 218f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 219f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross execvp(command, (char**) args); 220f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** exec(%s): %s\n", command, strerror(errno)); 221f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 222f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross _exit(-1); 223f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 224f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 225f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* handle parent case */ 226f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (;;) { 227f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int status; 228f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross pid_t p = waitpid(pid, &status, WNOHANG); 229f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross float elapsed = (float) (clock() - start) / CLOCKS_PER_SEC; 230f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (p == pid) { 231f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (WIFSIGNALED(status)) { 232f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: Killed by signal %d\n", command, WTERMSIG(status)); 233f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } else if (WIFEXITED(status) && WEXITSTATUS(status) > 0) { 234f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: Exit code %d\n", command, WEXITSTATUS(status)); 235f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 236f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (title) printf("[%s: %.1fs elapsed]\n\n", command, elapsed); 237f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return status; 238f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 239f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 240f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (timeout_seconds && elapsed > timeout_seconds) { 241f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("*** %s: Timed out after %.1fs (killing pid %d)\n", command, elapsed, pid); 242f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross kill(pid, SIGTERM); 243f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return -1; 244f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 245f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 246f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross usleep(100000); // poll every 0.1 sec 247f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 248f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 249f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 250f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crosssize_t num_props = 0; 251f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossstatic char* props[2000]; 252f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 253f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossstatic void print_prop(const char *key, const char *name, void *user) { 254f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross (void) user; 255f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (num_props < sizeof(props) / sizeof(props[0])) { 256f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char buf[PROPERTY_KEY_MAX + PROPERTY_VALUE_MAX + 10]; 257f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross snprintf(buf, sizeof(buf), "[%s]: [%s]\n", key, name); 258f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross props[num_props++] = strdup(buf); 259f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 260f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 261f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 262f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossstatic int compare_prop(const void *a, const void *b) { 263f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return strcmp(*(char * const *) a, *(char * const *) b); 264f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 265f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 266f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* prints all the system properties */ 267f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid print_properties() { 268f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross size_t i; 269f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross num_props = 0; 270f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross property_list(print_prop, NULL); 271f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross qsort(&props, num_props, sizeof(props[0]), compare_prop); 272f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 273f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("------ SYSTEM PROPERTIES ------\n"); 274f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross for (i = 0; i < num_props; ++i) { 275f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fputs(props[i], stdout); 276f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross free(props[i]); 277f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 278f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross printf("\n"); 279f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 280f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 281f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* redirect output to a service control socket */ 282f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid redirect_to_socket(FILE *redirect, const char *service) { 283f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int s = android_get_control_socket(service); 284f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (s < 0) { 285f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "android_get_control_socket(%s): %s\n", service, strerror(errno)); 286f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 287f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 288f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (listen(s, 4) < 0) { 289f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "listen(control socket): %s\n", strerror(errno)); 290f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 291f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 292f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 293f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct sockaddr addr; 294f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross socklen_t alen = sizeof(addr); 295f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd = accept(s, &addr, &alen); 296f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 297f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "accept(control socket): %s\n", strerror(errno)); 298f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 299f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 300f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 301f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(redirect); 302f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fd, fileno(redirect)); 303f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 304f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 305f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 306f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross/* redirect output to a file, optionally gzipping; returns gzip pid (or -1) */ 307f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crosspid_t redirect_to_file(FILE *redirect, char *path, int gzip_level) { 308f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char *chp = path; 309f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 310f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* skip initial slash */ 311f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (chp[0] == '/') 312f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross chp++; 313f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 314f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* create leading directories, if necessary */ 315f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross while (chp && chp[0]) { 316f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross chp = strchr(chp, '/'); 317f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (chp) { 318f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross *chp = 0; 319f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross mkdir(path, 0775); /* drwxrwxr-x */ 320f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross *chp++ = '/'; 321f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 322f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 323f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 324f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); 325f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 326f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "%s: %s\n", path, strerror(errno)); 327f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 328f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 329f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 330f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross pid_t gzip_pid = -1; 331f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (gzip_level > 0) { 332f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int fds[2]; 333f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pipe(fds)) { 334f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "pipe: %s\n", strerror(errno)); 335f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 336f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 337f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 338f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(redirect); 339f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fflush(stdout); 340f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 341f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross gzip_pid = fork(); 342f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (gzip_pid < 0) { 343f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "fork: %s\n", strerror(errno)); 344f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross exit(1); 345f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 346f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 347f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (gzip_pid == 0) { 348f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fds[0], STDIN_FILENO); 349f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fd, STDOUT_FILENO); 350f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 351f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 352f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fds[0]); 353f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fds[1]); 354f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 355f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char level[10]; 356f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross snprintf(level, sizeof(level), "-%d", gzip_level); 357f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross execlp("gzip", "gzip", level, NULL); 358f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "exec(gzip): %s\n", strerror(errno)); 359f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross _exit(-1); 360f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 361f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 362f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 363f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fds[0]); 364f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fd = fds[1]; 365f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 366f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 367f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross dup2(fd, fileno(redirect)); 368f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross close(fd); 369f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return gzip_pid; 370f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 371f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 372bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownstatic bool should_dump_native_traces(const char* path) { 373bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown for (const char** p = native_processes_to_dump; *p; p++) { 374bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (!strcmp(*p, path)) { 375bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown return true; 376bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 377bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 378bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown return false; 379bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown} 380bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 381bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown/* dump Dalvik and native stack traces, return the trace file location (NULL if none) */ 382bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownconst char *dump_traces() { 383bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown const char* result = NULL; 384bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 385f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char traces_path[PROPERTY_VALUE_MAX] = ""; 386f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross property_get("dalvik.vm.stack-trace-file", traces_path, ""); 387f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!traces_path[0]) return NULL; 388f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 389f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* move the old traces.txt (if any) out of the way temporarily */ 390f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char anr_traces_path[PATH_MAX]; 391f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcpy(anr_traces_path, traces_path, sizeof(anr_traces_path)); 392f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcat(anr_traces_path, ".anr", sizeof(anr_traces_path)); 393f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (rename(traces_path, anr_traces_path) && errno != ENOENT) { 394f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "rename(%s, %s): %s\n", traces_path, anr_traces_path, strerror(errno)); 395f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return NULL; // Can't rename old traces.txt -- no permission? -- leave it alone instead 396f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 397f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 398f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* make the directory if necessary */ 399f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char anr_traces_dir[PATH_MAX]; 400f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcpy(anr_traces_dir, traces_path, sizeof(anr_traces_dir)); 401f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross char *slash = strrchr(anr_traces_dir, '/'); 402f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (slash != NULL) { 403f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross *slash = '\0'; 404f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (!mkdir(anr_traces_dir, 0775)) { 405f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross chown(anr_traces_dir, AID_SYSTEM, AID_SYSTEM); 406c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich chmod(anr_traces_dir, 0775); 407957983787d7a753d34b582ae0165160f4ebf815cRobert Craig if (selinux_android_restorecon(anr_traces_dir) == -1) { 408957983787d7a753d34b582ae0165160f4ebf815cRobert Craig fprintf(stderr, "restorecon failed for %s: %s\n", anr_traces_dir, strerror(errno)); 409957983787d7a753d34b582ae0165160f4ebf815cRobert Craig } 410f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } else if (errno != EEXIST) { 411f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "mkdir(%s): %s\n", anr_traces_dir, strerror(errno)); 412f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return NULL; 413f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 414f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 415f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 416f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* create a new, empty traces.txt file to receive stack dumps */ 417d51820e8dea4f5bd9d06ff22335bead7409864b2Nick Kralevich int fd = open(traces_path, O_CREAT | O_WRONLY | O_TRUNC | O_NOFOLLOW, 0666); /* -rw-rw-rw- */ 418f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (fd < 0) { 419f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "%s: %s\n", traces_path, strerror(errno)); 420f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross return NULL; 421f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 422c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich int chmod_ret = fchmod(fd, 0666); 423c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich if (chmod_ret < 0) { 424c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich fprintf(stderr, "fchmod on %s failed: %s\n", traces_path, strerror(errno)); 425c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich close(fd); 426c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich return NULL; 427c7f1fe26804ab986b90f3ba007db94f71e94932aNick Kralevich } 428f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 429f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* walk /proc and kill -QUIT all Dalvik processes */ 430f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross DIR *proc = opendir("/proc"); 431f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (proc == NULL) { 432f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "/proc: %s\n", strerror(errno)); 433bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_fd; 434f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 435f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 436f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* use inotify to find when processes are done dumping */ 437f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int ifd = inotify_init(); 438f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (ifd < 0) { 439f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "inotify_init: %s\n", strerror(errno)); 440bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_fd; 441f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 442f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 443f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int wfd = inotify_add_watch(ifd, traces_path, IN_CLOSE_WRITE); 444f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (wfd < 0) { 445f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "inotify_add_watch(%s): %s\n", traces_path, strerror(errno)); 446bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_ifd; 447f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 448f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 449f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross struct dirent *d; 450f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int dalvik_found = 0; 451f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross while ((d = readdir(proc))) { 452f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross int pid = atoi(d->d_name); 453f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (pid <= 0) continue; 454f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 455bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown char path[PATH_MAX]; 456bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown char data[PATH_MAX]; 457f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross snprintf(path, sizeof(path), "/proc/%d/exe", pid); 458bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown ssize_t len = readlink(path, data, sizeof(data) - 1); 459bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (len <= 0) { 460f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross continue; 461f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 462bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown data[len] = '\0'; 463f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 464bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (!strcmp(data, "/system/bin/app_process")) { 465bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown /* skip zygote -- it won't dump its stack anyway */ 466bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); 467bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown int fd = open(path, O_RDONLY); 468bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown len = read(fd, data, sizeof(data) - 1); 469bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown close(fd); 470bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (len <= 0) { 471bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown continue; 472bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 473bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown data[len] = '\0'; 474bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (!strcmp(data, "zygote")) { 475bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown continue; 476bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 477bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 478bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown ++dalvik_found; 479bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (kill(pid, SIGQUIT)) { 480bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "kill(%d, SIGQUIT): %s\n", pid, strerror(errno)); 481bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown continue; 482bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 483bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 484bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown /* wait for the writable-close notification from inotify */ 485bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown struct pollfd pfd = { ifd, POLLIN, 0 }; 486bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown int ret = poll(&pfd, 1, 200); /* 200 msec timeout */ 487bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (ret < 0) { 488bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "poll: %s\n", strerror(errno)); 489bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else if (ret == 0) { 490bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "warning: timed out dumping pid %d\n", pid); 491bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else { 492bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown struct inotify_event ie; 493bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown read(ifd, &ie, sizeof(ie)); 494bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 495bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else if (should_dump_native_traces(data)) { 496bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown /* dump native process if appropriate */ 497bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown if (lseek(fd, 0, SEEK_END) < 0) { 498bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown fprintf(stderr, "lseek: %s\n", strerror(errno)); 499bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } else { 500bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown dump_backtrace_to_file(pid, fd); 501bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown } 502f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 503f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 504f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 505f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (dalvik_found == 0) { 506f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "Warning: no Dalvik processes found to dump stacks\n"); 507f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 508f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 509f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross static char dump_traces_path[PATH_MAX]; 510f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcpy(dump_traces_path, traces_path, sizeof(dump_traces_path)); 511f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross strlcat(dump_traces_path, ".bugreport", sizeof(dump_traces_path)); 512f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross if (rename(traces_path, dump_traces_path)) { 513f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross fprintf(stderr, "rename(%s, %s): %s\n", traces_path, dump_traces_path, strerror(errno)); 514bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown goto error_close_ifd; 515f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross } 516bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown result = dump_traces_path; 517f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 518f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross /* replace the saved [ANR] traces.txt file */ 519f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross rename(anr_traces_path, traces_path); 520bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown 521bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownerror_close_ifd: 522bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown close(ifd); 523bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brownerror_close_fd: 524bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown close(fd); 525bf7f49238d0af497d4300f7e611cf831854d6434Jeff Brown return result; 526f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 527f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross 528f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Crossvoid play_sound(const char* path) { 529f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross run_command(NULL, 5, "/system/bin/stagefright", "-o", "-a", path, NULL); 530f45fa6b2853cc32385375a0b63ee39ad6a968869Colin Cross} 531