move dumpstate and dumpsys from frameworks/base to frameworks/native

Change-Id: I8a5318022ce5cd3e7c8055f21fe5da74639aa6c0

1 files changed, 470 insertions, 0 deletions

diff --git a/cmds/dumpstate/utils.c b/cmds/dumpstate/utils.c
new file mode 100644
index 0000000..0d5ab90
--- /dev/null
+++ b/cmds/dumpstate/utils.c
@@ -0,0 +1,470 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <poll.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/inotify.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <sys/klog.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <cutils/properties.h>
+#include <cutils/sockets.h>
+#include <private/android_filesystem_config.h>
+
+#include "dumpstate.h"
+
+void for_each_pid(void (*func)(int, const char *), const char *header) {
+    DIR *d;
+    struct dirent *de;
+
+    if (!(d = opendir("/proc"))) {
+        printf("Failed to open /proc (%s)\n", strerror(errno));
+        return;
+    }
+
+    printf("\n------ %s ------\n", header);
+    while ((de = readdir(d))) {
+        int pid;
+        int fd;
+        char cmdpath[255];
+        char cmdline[255];
+
+        if (!(pid = atoi(de->d_name))) {
+            continue;
+        }
+
+        sprintf(cmdpath,"/proc/%d/cmdline", pid);
+        memset(cmdline, 0, sizeof(cmdline));
+        if ((fd = open(cmdpath, O_RDONLY)) < 0) {
+            strcpy(cmdline, "N/A");
+        } else {
+            read(fd, cmdline, sizeof(cmdline));
+            close(fd);
+        }
+        func(pid, cmdline);
+    }
+
+    closedir(d);
+}
+
+void show_wchan(int pid, const char *name) {
+    char path[255];
+    char buffer[255];
+    int fd;
+
+    memset(buffer, 0, sizeof(buffer));
+
+    sprintf(path, "/proc/%d/wchan", pid);
+    if ((fd = open(path, O_RDONLY)) < 0) {
+        printf("Failed to open '%s' (%s)\n", path, strerror(errno));
+        return;
+    }
+
+    if (read(fd, buffer, sizeof(buffer)) < 0) {
+        printf("Failed to read '%s' (%s)\n", path, strerror(errno));
+        goto out_close;
+    }
+
+    printf("%-7d %-32s %s\n", pid, name, buffer);
+
+out_close:
+    close(fd);
+    return;
+}
+
+void do_dmesg() {
+    printf("------ KERNEL LOG (dmesg) ------\n");
+    int size = klogctl(10, NULL, 0); /* Get size of kernel buffer */
+    if (size <= 0) {
+        printf("Unexpected klogctl return value: %d\n\n", size);
+        return;
+    }
+    char *buf = (char *) malloc(size + 1);
+    if (buf == NULL) {
+        printf("memory allocation failed\n\n");
+        return;
+    }
+    int retval = klogctl(KLOG_READ_ALL, buf, size);
+    if (retval < 0) {
+        printf("klogctl failure\n\n");
+        free(buf);
+        return;
+    }
+    buf[retval] = '\0';
+    printf("%s\n\n", buf);
+    free(buf);
+    return;
+}
+
+void do_showmap(int pid, const char *name) {
+    char title[255];
+    char arg[255];
+
+    sprintf(title, "SHOW MAP %d (%s)", pid, name);
+    sprintf(arg, "%d", pid);
+    run_command(title, 10, SU_PATH, "root", "showmap", arg, NULL);
+}
+
+/* prints the contents of a file */
+int dump_file(const char *title, const char* path) {
+    char buffer[32768];
+    int fd = open(path, O_RDONLY);
+    if (fd < 0) {
+        int err = errno;
+        if (title) printf("------ %s (%s) ------\n", title, path);
+        printf("*** %s: %s\n", path, strerror(err));
+        if (title) printf("\n");
+        return -1;
+    }
+
+    if (title) printf("------ %s (%s", title, path);
+
+    if (title) {
+        struct stat st;
+        if (memcmp(path, "/proc/", 6) && memcmp(path, "/sys/", 5) && !fstat(fd, &st)) {
+            char stamp[80];
+            time_t mtime = st.st_mtime;
+            strftime(stamp, sizeof(stamp), "%Y-%m-%d %H:%M:%S", localtime(&mtime));
+            printf(": %s", stamp);
+        }
+        printf(") ------\n");
+    }
+
+    int newline = 0;
+    for (;;) {
+        int ret = read(fd, buffer, sizeof(buffer));
+        if (ret > 0) {
+            newline = (buffer[ret - 1] == '\n');
+            ret = fwrite(buffer, ret, 1, stdout);
+        }
+        if (ret <= 0) break;
+    }
+
+    close(fd);
+    if (!newline) printf("\n");
+    if (title) printf("\n");
+    return 0;
+}
+
+/* forks a command and waits for it to finish */
+int run_command(const char *title, int timeout_seconds, const char *command, ...) {
+    fflush(stdout);
+    clock_t start = clock();
+    pid_t pid = fork();
+
+    /* handle error case */
+    if (pid < 0) {
+        printf("*** fork: %s\n", strerror(errno));
+        return pid;
+    }
+
+    /* handle child case */
+    if (pid == 0) {
+        const char *args[1024] = {command};
+        size_t arg;
+
+        va_list ap;
+        va_start(ap, command);
+        if (title) printf("------ %s (%s", title, command);
+        for (arg = 1; arg < sizeof(args) / sizeof(args[0]); ++arg) {
+            args[arg] = va_arg(ap, const char *);
+            if (args[arg] == NULL) break;
+            if (title) printf(" %s", args[arg]);
+        }
+        if (title) printf(") ------\n");
+        fflush(stdout);
+
+        execvp(command, (char**) args);
+        printf("*** exec(%s): %s\n", command, strerror(errno));
+        fflush(stdout);
+        _exit(-1);
+    }
+
+    /* handle parent case */
+    for (;;) {
+        int status;
+        pid_t p = waitpid(pid, &status, WNOHANG);
+        float elapsed = (float) (clock() - start) / CLOCKS_PER_SEC;
+        if (p == pid) {
+            if (WIFSIGNALED(status)) {
+                printf("*** %s: Killed by signal %d\n", command, WTERMSIG(status));
+            } else if (WIFEXITED(status) && WEXITSTATUS(status) > 0) {
+                printf("*** %s: Exit code %d\n", command, WEXITSTATUS(status));
+            }
+            if (title) printf("[%s: %.1fs elapsed]\n\n", command, elapsed);
+            return status;
+        }
+
+        if (timeout_seconds && elapsed > timeout_seconds) {
+            printf("*** %s: Timed out after %.1fs (killing pid %d)\n", command, elapsed, pid);
+            kill(pid, SIGTERM);
+            return -1;
+        }
+
+        usleep(100000);  // poll every 0.1 sec
+    }
+}
+
+size_t num_props = 0;
+static char* props[2000];
+
+static void print_prop(const char *key, const char *name, void *user) {
+    (void) user;
+    if (num_props < sizeof(props) / sizeof(props[0])) {
+        char buf[PROPERTY_KEY_MAX + PROPERTY_VALUE_MAX + 10];
+        snprintf(buf, sizeof(buf), "[%s]: [%s]\n", key, name);
+        props[num_props++] = strdup(buf);
+    }
+}
+
+static int compare_prop(const void *a, const void *b) {
+    return strcmp(*(char * const *) a, *(char * const *) b);
+}
+
+/* prints all the system properties */
+void print_properties() {
+    size_t i;
+    num_props = 0;
+    property_list(print_prop, NULL);
+    qsort(&props, num_props, sizeof(props[0]), compare_prop);
+
+    printf("------ SYSTEM PROPERTIES ------\n");
+    for (i = 0; i < num_props; ++i) {
+        fputs(props[i], stdout);
+        free(props[i]);
+    }
+    printf("\n");
+}
+
+/* redirect output to a service control socket */
+void redirect_to_socket(FILE *redirect, const char *service) {
+    int s = android_get_control_socket(service);
+    if (s < 0) {
+        fprintf(stderr, "android_get_control_socket(%s): %s\n", service, strerror(errno));
+        exit(1);
+    }
+    if (listen(s, 4) < 0) {
+        fprintf(stderr, "listen(control socket): %s\n", strerror(errno));
+        exit(1);
+    }
+
+    struct sockaddr addr;
+    socklen_t alen = sizeof(addr);
+    int fd = accept(s, &addr, &alen);
+    if (fd < 0) {
+        fprintf(stderr, "accept(control socket): %s\n", strerror(errno));
+        exit(1);
+    }
+
+    fflush(redirect);
+    dup2(fd, fileno(redirect));
+    close(fd);
+}
+
+/* redirect output to a file, optionally gzipping; returns gzip pid (or -1) */
+pid_t redirect_to_file(FILE *redirect, char *path, int gzip_level) {
+    char *chp = path;
+
+    /* skip initial slash */
+    if (chp[0] == '/')
+        chp++;
+
+    /* create leading directories, if necessary */
+    while (chp && chp[0]) {
+        chp = strchr(chp, '/');
+        if (chp) {
+            *chp = 0;
+            mkdir(path, 0775);  /* drwxrwxr-x */
+            *chp++ = '/';
+        }
+    }
+
+    int fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+    if (fd < 0) {
+        fprintf(stderr, "%s: %s\n", path, strerror(errno));
+        exit(1);
+    }
+
+    pid_t gzip_pid = -1;
+    if (gzip_level > 0) {
+        int fds[2];
+        if (pipe(fds)) {
+            fprintf(stderr, "pipe: %s\n", strerror(errno));
+            exit(1);
+        }
+
+        fflush(redirect);
+        fflush(stdout);
+
+        gzip_pid = fork();
+        if (gzip_pid < 0) {
+            fprintf(stderr, "fork: %s\n", strerror(errno));
+            exit(1);
+        }
+
+        if (gzip_pid == 0) {
+            dup2(fds[0], STDIN_FILENO);
+            dup2(fd, STDOUT_FILENO);
+
+            close(fd);
+            close(fds[0]);
+            close(fds[1]);
+
+            char level[10];
+            snprintf(level, sizeof(level), "-%d", gzip_level);
+            execlp("gzip", "gzip", level, NULL);
+            fprintf(stderr, "exec(gzip): %s\n", strerror(errno));
+            _exit(-1);
+        }
+
+        close(fd);
+        close(fds[0]);
+        fd = fds[1];
+    }
+
+    dup2(fd, fileno(redirect));
+    close(fd);
+    return gzip_pid;
+}
+
+/* dump Dalvik stack traces, return the trace file location (NULL if none) */
+const char *dump_vm_traces() {
+    char traces_path[PROPERTY_VALUE_MAX] = "";
+    property_get("dalvik.vm.stack-trace-file", traces_path, "");
+    if (!traces_path[0]) return NULL;
+
+    /* move the old traces.txt (if any) out of the way temporarily */
+    char anr_traces_path[PATH_MAX];
+    strlcpy(anr_traces_path, traces_path, sizeof(anr_traces_path));
+    strlcat(anr_traces_path, ".anr", sizeof(anr_traces_path));
+    if (rename(traces_path, anr_traces_path) && errno != ENOENT) {
+        fprintf(stderr, "rename(%s, %s): %s\n", traces_path, anr_traces_path, strerror(errno));
+        return NULL;  // Can't rename old traces.txt -- no permission? -- leave it alone instead
+    }
+
+    /* make the directory if necessary */
+    char anr_traces_dir[PATH_MAX];
+    strlcpy(anr_traces_dir, traces_path, sizeof(anr_traces_dir));
+    char *slash = strrchr(anr_traces_dir, '/');
+    if (slash != NULL) {
+        *slash = '\0';
+        if (!mkdir(anr_traces_dir, 0775)) {
+            chown(anr_traces_dir, AID_SYSTEM, AID_SYSTEM);
+        } else if (errno != EEXIST) {
+            fprintf(stderr, "mkdir(%s): %s\n", anr_traces_dir, strerror(errno));
+            return NULL;
+        }
+    }
+
+    /* create a new, empty traces.txt file to receive stack dumps */
+    int fd = open(traces_path, O_CREAT | O_WRONLY | O_TRUNC, 0666);  /* -rw-rw-rw- */
+    if (fd < 0) {
+        fprintf(stderr, "%s: %s\n", traces_path, strerror(errno));
+        return NULL;
+    }
+    close(fd);
+
+    /* walk /proc and kill -QUIT all Dalvik processes */
+    DIR *proc = opendir("/proc");
+    if (proc == NULL) {
+        fprintf(stderr, "/proc: %s\n", strerror(errno));
+        return NULL;
+    }
+
+    /* use inotify to find when processes are done dumping */
+    int ifd = inotify_init();
+    if (ifd < 0) {
+        fprintf(stderr, "inotify_init: %s\n", strerror(errno));
+        return NULL;
+    }
+
+    int wfd = inotify_add_watch(ifd, traces_path, IN_CLOSE_WRITE);
+    if (wfd < 0) {
+        fprintf(stderr, "inotify_add_watch(%s): %s\n", traces_path, strerror(errno));
+        return NULL;
+    }
+
+    struct dirent *d;
+    int dalvik_found = 0;
+    while ((d = readdir(proc))) {
+        int pid = atoi(d->d_name);
+        if (pid <= 0) continue;
+
+        /* identify Dalvik: /proc/(pid)/exe = /system/bin/app_process */
+        char path[PATH_MAX], data[PATH_MAX];
+        snprintf(path, sizeof(path), "/proc/%d/exe", pid);
+        size_t len = readlink(path, data, sizeof(data) - 1);
+        if (len <= 0 || memcmp(data, "/system/bin/app_process", 23)) continue;
+
+        /* skip zygote -- it won't dump its stack anyway */
+        snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);
+        int fd = open(path, O_RDONLY);
+        len = read(fd, data, sizeof(data) - 1);
+        close(fd);
+        if (len <= 0 || !memcmp(data, "zygote", 6)) continue;
+
+        ++dalvik_found;
+        if (kill(pid, SIGQUIT)) {
+            fprintf(stderr, "kill(%d, SIGQUIT): %s\n", pid, strerror(errno));
+            continue;
+        }
+
+        /* wait for the writable-close notification from inotify */
+        struct pollfd pfd = { ifd, POLLIN, 0 };
+        int ret = poll(&pfd, 1, 200);  /* 200 msec timeout */
+        if (ret < 0) {
+            fprintf(stderr, "poll: %s\n", strerror(errno));
+        } else if (ret == 0) {
+            fprintf(stderr, "warning: timed out dumping pid %d\n", pid);
+        } else {
+            struct inotify_event ie;
+            read(ifd, &ie, sizeof(ie));
+        }
+    }
+
+    close(ifd);
+    if (dalvik_found == 0) {
+        fprintf(stderr, "Warning: no Dalvik processes found to dump stacks\n");
+    }
+
+    static char dump_traces_path[PATH_MAX];
+    strlcpy(dump_traces_path, traces_path, sizeof(dump_traces_path));
+    strlcat(dump_traces_path, ".bugreport", sizeof(dump_traces_path));
+    if (rename(traces_path, dump_traces_path)) {
+        fprintf(stderr, "rename(%s, %s): %s\n", traces_path, dump_traces_path, strerror(errno));
+        return NULL;
+    }
+
+    /* replace the saved [ANR] traces.txt file */
+    rename(anr_traces_path, traces_path);
+    return dump_traces_path;
+}
+
+void play_sound(const char* path) {
+    run_command(NULL, 5, "/system/bin/stagefright", "-o", "-a", path, NULL);
+}