예제 #1
0
void LogBuffer::init() {
    static const char global_tuneable[] = "persist.logd.size"; // Settings App
    static const char global_default[] = "ro.logd.size";       // BoardConfig.mk

    unsigned long default_size = property_get_size(global_tuneable);
    if (!default_size) {
        default_size = property_get_size(global_default);
    }

    log_id_for_each(i) {
        char key[PROP_NAME_MAX];

        snprintf(key, sizeof(key), "%s.%s",
                 global_tuneable, android_log_id_to_name(i));
        unsigned long property_size = property_get_size(key);

        if (!property_size) {
            snprintf(key, sizeof(key), "%s.%s",
                     global_default, android_log_id_to_name(i));
            property_size = property_get_size(key);
        }

        if (!property_size) {
            property_size = default_size;
        }

        if (!property_size) {
            property_size = LOG_BUFFER_SIZE;
        }

        if (setSize(i, property_size)) {
            setSize(i, LOG_BUFFER_MIN_SIZE);
        }
    }
}
예제 #2
0
LIBLOG_ABI_PRIVATE unsigned long __android_logger_get_buffer_size(log_id_t logId)
{
    static const char global_tunable[] = "persist.logd.size"; /* Settings App */
    static const char global_default[] = "ro.logd.size"; /* BoardConfig.mk */
    static struct cache2_property_size global = {
        PTHREAD_MUTEX_INITIALIZER,
        0,
        global_tunable,
        { { NULL, -1 }, {} },
        global_default,
        { { NULL, -1 }, {} },
        evaluate_property_get_size
    };
    char key_persist[PROP_NAME_MAX];
    char key_ro[PROP_NAME_MAX];
    struct cache2_property_size local = {
        PTHREAD_MUTEX_INITIALIZER,
        0,
        key_persist,
        { { NULL, -1 }, {} },
        key_ro,
        { { NULL, -1 }, {} },
        evaluate_property_get_size
    };
    unsigned long property_size, default_size;

    default_size =  do_cache2_property_size(&global);
    if (!default_size) {
        default_size = __android_logger_property_get_bool("ro.config.low_ram",
                                                          BOOL_DEFAULT_FALSE)
            ? LOG_BUFFER_MIN_SIZE /* 64K  */
            : LOG_BUFFER_SIZE;    /* 256K */
    }

    snprintf(key_persist, sizeof(key_persist), "%s.%s",
             global_tunable, android_log_id_to_name(logId));
    snprintf(key_ro, sizeof(key_ro), "%s.%s",
             global_default, android_log_id_to_name(logId));
    property_size = do_cache2_property_size(&local);

    if (!property_size) {
        property_size = default_size;
    }

    if (!property_size) {
        property_size = LOG_BUFFER_SIZE;
    }

    return property_size;
}
LogSection::LogSection(int id, log_id_t logID) : WorkerThreadSection(id), mLogID(logID) {
    name += "logcat ";
    name += android_log_id_to_name(logID);
    switch (logID) {
        case LOG_ID_EVENTS:
        case LOG_ID_STATS:
        case LOG_ID_SECURITY:
            mBinary = true;
            break;
        default:
            mBinary = false;
    }
}
예제 #4
0
LogBuffer::LogBuffer(LastLogTimes *times)
        : mTimes(*times) {
    pthread_mutex_init(&mLogElementsLock, NULL);
    dgram_qlen_statistics = false;

    static const char global_tuneable[] = "persist.logd.size"; // Settings App
    static const char global_default[] = "ro.logd.size";       // BoardConfig.mk

    unsigned long default_size = property_get_size(global_tuneable);
    if (!default_size) {
        default_size = property_get_size(global_default);
    }

    log_id_for_each(i) {
        char key[PROP_NAME_MAX];

        snprintf(key, sizeof(key), "%s.%s",
                 global_tuneable, android_log_id_to_name(i));
        unsigned long property_size = property_get_size(key);

        if (!property_size) {
            snprintf(key, sizeof(key), "%s.%s",
                     global_default, android_log_id_to_name(i));
            property_size = property_get_size(key);
        }

        if (!property_size) {
            property_size = default_size;
        }

        if (!property_size) {
            property_size = LOG_BUFFER_SIZE;
        }

        if (setSize(i, property_size)) {
            setSize(i, LOG_BUFFER_MIN_SIZE);
        }
    }
}
예제 #5
0
TEST(liblog, android_logger_get_) {
#ifdef __ANDROID__
  // This test assumes the log buffers are filled with noise from
  // normal operations. It will fail if done immediately after a
  // logcat -c.
  struct logger_list* logger_list =
      android_logger_list_alloc(ANDROID_LOG_WRONLY, 0, 0);

  for (int i = LOG_ID_MIN; i < LOG_ID_MAX; ++i) {
    log_id_t id = static_cast<log_id_t>(i);
    const char* name = android_log_id_to_name(id);
    if (id != android_name_to_log_id(name)) {
      continue;
    }
    fprintf(stderr, "log buffer %s\r", name);
    struct logger* logger;
    EXPECT_TRUE(NULL != (logger = android_logger_open(logger_list, id)));
    EXPECT_EQ(id, android_logger_get_id(logger));
    ssize_t get_log_size = android_logger_get_log_size(logger);
    /* security buffer is allowed to be denied */
    if (strcmp("security", name)) {
      EXPECT_LT(0, get_log_size);
      // crash buffer is allowed to be empty, that is actually healthy!
      // kernel buffer is allowed to be empty on "user" builds
      // stats buffer is allowed to be empty TEMPORARILY.
      // TODO: remove stats buffer from here once we start to use it in
      // framework (b/68266385).
      EXPECT_LE(  // boolean 1 or 0 depending on expected content or empty
          !!((strcmp("crash", name) != 0) &&
             ((strcmp("kernel", name) != 0) ||
              __android_logger_property_get_bool(
                  "ro.logd.kernel", BOOL_DEFAULT_TRUE | BOOL_DEFAULT_FLAG_ENG |
                                        BOOL_DEFAULT_FLAG_SVELTE)) &&
             (strcmp("stats", name) != 0)),
          android_logger_get_log_readable_size(logger));
    } else {
      EXPECT_NE(0, get_log_size);
      if (get_log_size < 0) {
        EXPECT_GT(0, android_logger_get_log_readable_size(logger));
      } else {
        EXPECT_LE(0, android_logger_get_log_readable_size(logger));
      }
    }
    EXPECT_LT(0, android_logger_get_log_version(logger));
  }

  android_logger_list_close(logger_list);
#else
  GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
}
TEST(liblog, android_logger_get_) {
    struct logger_list * logger_list = android_logger_list_alloc(O_WRONLY, 0, 0);

    for(int i = LOG_ID_MIN; i < LOG_ID_MAX; ++i) {
        log_id_t id = static_cast<log_id_t>(i);
        const char *name = android_log_id_to_name(id);
        if (id != android_name_to_log_id(name)) {
            continue;
        }
        struct logger * logger;
        EXPECT_TRUE(NULL != (logger = android_logger_open(logger_list, id)));
        EXPECT_EQ(id, android_logger_get_id(logger));
        EXPECT_LT(0, android_logger_get_log_size(logger));
        EXPECT_LT(0, android_logger_get_log_readable_size(logger));
        EXPECT_LT(0, android_logger_get_log_version(logger));
    }

    android_logger_list_close(logger_list);
}
예제 #7
0
/* log_init_lock assumed */
static int __write_to_log_initialize()
{
    int i, ret = 0;

#if FAKE_LOG_DEVICE
    for (i = 0; i < LOG_ID_MAX; i++) {
        char buf[sizeof("/dev/log_system")];
        snprintf(buf, sizeof(buf), "/dev/log_%s", android_log_id_to_name(i));
        log_fds[i] = fakeLogOpen(buf, O_WRONLY);
    }
#else
    if (pstore_fd < 0) {
        pstore_fd = TEMP_FAILURE_RETRY(open("/dev/pmsg0", O_WRONLY));
    }

    if (logd_fd < 0) {
        i = TEMP_FAILURE_RETRY(socket(PF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC, 0));
        if (i < 0) {
            ret = -errno;
        } else if (TEMP_FAILURE_RETRY(fcntl(i, F_SETFL, O_NONBLOCK)) < 0) {
            ret = -errno;
            close(i);
        } else {
            struct sockaddr_un un;
            memset(&un, 0, sizeof(struct sockaddr_un));
            un.sun_family = AF_UNIX;
            strcpy(un.sun_path, "/dev/socket/logdw");

            if (TEMP_FAILURE_RETRY(connect(i, (struct sockaddr *)&un,
                                           sizeof(struct sockaddr_un))) < 0) {
                ret = -errno;
                close(i);
            } else {
                logd_fd = i;
            }
        }
    }
#endif

    return ret;
}
TEST(liblog, android_logger_get_) {
    struct logger_list * logger_list = android_logger_list_alloc(ANDROID_LOG_WRONLY, 0, 0);

    for(int i = LOG_ID_MIN; i < LOG_ID_MAX; ++i) {
        log_id_t id = static_cast<log_id_t>(i);
        const char *name = android_log_id_to_name(id);
        if (id != android_name_to_log_id(name)) {
            continue;
        }
        fprintf(stderr, "log buffer %s\r", name);
        struct logger * logger;
        EXPECT_TRUE(NULL != (logger = android_logger_open(logger_list, id)));
        EXPECT_EQ(id, android_logger_get_id(logger));
        /* crash buffer is allowed to be empty, that is actually healthy! */
        if (android_logger_get_log_size(logger) || strcmp("crash", name)) {
            EXPECT_LT(0, android_logger_get_log_size(logger));
        }
        EXPECT_LT(0, android_logger_get_log_readable_size(logger));
        EXPECT_LT(0, android_logger_get_log_version(logger));
    }

    android_logger_list_close(logger_list);
}
void LogStatistics::format(char **buf, uid_t uid, unsigned int logMask) {
    static const unsigned short spaces_total = 19;

    if (*buf) {
        free(*buf);
        *buf = NULL;
    }

    // Report on total logging, current and for all time

    android::String8 output("size/num");
    size_t oldLength;
    short spaces = 1;

    log_id_for_each(id) {
        if (!(logMask & (1 << id))) {
            continue;
        }
        oldLength = output.length();
        if (spaces < 0) {
            spaces = 0;
        }
        output.appendFormat("%*s%s", spaces, "", android_log_id_to_name(id));
        spaces += spaces_total + oldLength - output.length();
    }

    spaces = 4;
    output.appendFormat("\nTotal");

    log_id_for_each(id) {
        if (!(logMask & (1 << id))) {
            continue;
        }
        oldLength = output.length();
        if (spaces < 0) {
            spaces = 0;
        }
        output.appendFormat("%*s%zu/%zu", spaces, "",
                            sizesTotal(id), elementsTotal(id));
        spaces += spaces_total + oldLength - output.length();
    }

    spaces = 6;
    output.appendFormat("\nNow");

    log_id_for_each(id) {
        if (!(logMask & (1 << id))) {
            continue;
        }

        size_t els = elements(id);
        if (els) {
            oldLength = output.length();
            if (spaces < 0) {
                spaces = 0;
            }
            output.appendFormat("%*s%zu/%zu", spaces, "", sizes(id), els);
            spaces -= output.length() - oldLength;
        }
        spaces += spaces_total;
    }

    // Report on Chattiest

    // Chattiest by application (UID)
    static const size_t maximum_sorted_entries = 32;
    log_id_for_each(id) {
        if (!(logMask & (1 << id))) {
            continue;
        }

        bool headerPrinted = false;
        std::unique_ptr<const UidEntry *[]> sorted = sort(maximum_sorted_entries, id);
        ssize_t index = -1;
        while ((index = uidTable_t::next(index, sorted, maximum_sorted_entries)) >= 0) {
            const UidEntry *entry = sorted[index];
            uid_t u = entry->getKey();
            if ((uid != AID_ROOT) && (u != uid)) {
                continue;
            }

            if (!headerPrinted) {
                if (uid == AID_ROOT) {
                    output.appendFormat(
                        "\n\nChattiest UIDs in %s:\n",
                        android_log_id_to_name(id));
                } else {
                    output.appendFormat(
                        "\n\nLogging for your UID in %s:\n",
                        android_log_id_to_name(id));
                }
                android::String8 name("UID");
                android::String8 size("Size");
                android::String8 pruned("Pruned");
                if (!worstUidEnabledForLogid(id)) {
                    pruned.setTo("");
                }
                format_line(output, name, size, pruned);
                headerPrinted = true;
            }

            android::String8 name("");
            name.appendFormat("%u", u);
            char *n = uidToName(u);
            if (n) {
                name.appendFormat("%*s%s", (int)std::max(6 - name.length(), (size_t)1), "", n);
                free(n);
            }

            android::String8 size("");
            size.appendFormat("%zu", entry->getSizes());

            android::String8 pruned("");
            size_t dropped = entry->getDropped();
            if (dropped) {
                pruned.appendFormat("%zu", dropped);
            }

            format_line(output, name, size, pruned);
        }
    }

    if (enable) {
        bool headerPrinted = false;
        std::unique_ptr<const PidEntry *[]> sorted = pidTable.sort(maximum_sorted_entries);
        ssize_t index = -1;
        while ((index = pidTable.next(index, sorted, maximum_sorted_entries)) >= 0) {
            const PidEntry *entry = sorted[index];
            uid_t u = entry->getUid();
            if ((uid != AID_ROOT) && (u != uid)) {
                continue;
            }

            if (!headerPrinted) {
                if (uid == AID_ROOT) {
                    output.appendFormat("\n\nChattiest PIDs:\n");
                } else {
                    output.appendFormat("\n\nLogging for this PID:\n");
                }
                android::String8 name("  PID/UID");
                android::String8 size("Size");
                android::String8 pruned("Pruned");
                format_line(output, name, size, pruned);
                headerPrinted = true;
            }

            android::String8 name("");
            name.appendFormat("%5u/%u", entry->getKey(), u);
            const char *n = entry->getName();
            if (n) {
                name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", n);
            } else {
                char *un = uidToName(u);
                if (un) {
                    name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", un);
                    free(un);
                }
            }

            android::String8 size("");
            size.appendFormat("%zu", entry->getSizes());

            android::String8 pruned("");
            size_t dropped = entry->getDropped();
            if (dropped) {
                pruned.appendFormat("%zu", dropped);
            }

            format_line(output, name, size, pruned);
        }
    }

    *buf = strdup(output.string());
}
void LogStatistics::format(char **buf, uid_t uid, unsigned int logMask) {
    static const unsigned short spaces_total = 19;

    if (*buf) {
        free(*buf);
        *buf = NULL;
    }

    // Report on total logging, current and for all time

    android::String8 output("size/num");
    size_t oldLength;
    short spaces = 1;

    log_id_for_each(id) {
        if (!(logMask & (1 << id))) {
            continue;
        }
        oldLength = output.length();
        if (spaces < 0) {
            spaces = 0;
        }
        output.appendFormat("%*s%s", spaces, "", android_log_id_to_name(id));
        spaces += spaces_total + oldLength - output.length();
    }

    spaces = 4;
    output.appendFormat("\nTotal");

    log_id_for_each(id) {
        if (!(logMask & (1 << id))) {
            continue;
        }
        oldLength = output.length();
        if (spaces < 0) {
            spaces = 0;
        }
        output.appendFormat("%*s%zu/%zu", spaces, "",
                            sizesTotal(id), elementsTotal(id));
        spaces += spaces_total + oldLength - output.length();
    }

    spaces = 6;
    output.appendFormat("\nNow");

    log_id_for_each(id) {
        if (!(logMask & (1 << id))) {
            continue;
        }

        size_t els = elements(id);
        if (els) {
            oldLength = output.length();
            if (spaces < 0) {
                spaces = 0;
            }
            output.appendFormat("%*s%zu/%zu", spaces, "", sizes(id), els);
            spaces -= output.length() - oldLength;
        }
        spaces += spaces_total;
    }

    // Report on Chattiest

    // Chattiest by application (UID)
    static const size_t maximum_sorted_entries = 32;
    log_id_for_each(id) {
        if (!(logMask & (1 << id))) {
            continue;
        }

        bool headerPrinted = false;
        std::unique_ptr<const UidEntry *[]> sorted = sort(maximum_sorted_entries, id);
        ssize_t index = -1;
        while ((index = uidTable_t::next(index, sorted, maximum_sorted_entries)) >= 0) {
            const UidEntry *entry = sorted[index];
            uid_t u = entry->getKey();
            if ((uid != AID_ROOT) && (u != uid)) {
                continue;
            }

            if (!headerPrinted) {
                output.appendFormat("\n\n");
                android::String8 name("");
                if (uid == AID_ROOT) {
                    name.appendFormat(
                        "Chattiest UIDs in %s log buffer:",
                        android_log_id_to_name(id));
                } else {
                    name.appendFormat(
                        "Logging for your UID in %s log buffer:",
                        android_log_id_to_name(id));
                }
                android::String8 size("Size");
                android::String8 pruned("Pruned");
                if (!worstUidEnabledForLogid(id)) {
                    pruned.setTo("");
                }
                format_line(output, name, size, pruned);

                name.setTo("UID   PACKAGE");
                size.setTo("BYTES");
                pruned.setTo("LINES");
                if (!worstUidEnabledForLogid(id)) {
                    pruned.setTo("");
                }
                format_line(output, name, size, pruned);

                headerPrinted = true;
            }

            android::String8 name("");
            name.appendFormat("%u", u);
            char *n = uidToName(u);
            if (n) {
                name.appendFormat("%*s%s", (int)std::max(6 - name.length(), (size_t)1), "", n);
                free(n);
            }

            android::String8 size("");
            size.appendFormat("%zu", entry->getSizes());

            android::String8 pruned("");
            size_t dropped = entry->getDropped();
            if (dropped) {
                pruned.appendFormat("%zu", dropped);
            }

            format_line(output, name, size, pruned);
        }
    }

    if (enable) {
        // Pid table
        bool headerPrinted = false;
        std::unique_ptr<const PidEntry *[]> sorted = pidTable.sort(maximum_sorted_entries);
        ssize_t index = -1;
        while ((index = pidTable.next(index, sorted, maximum_sorted_entries)) >= 0) {
            const PidEntry *entry = sorted[index];
            uid_t u = entry->getUid();
            if ((uid != AID_ROOT) && (u != uid)) {
                continue;
            }

            if (!headerPrinted) {
                output.appendFormat("\n\n");
                android::String8 name("");
                if (uid == AID_ROOT) {
                    name.appendFormat("Chattiest PIDs:");
                } else {
                    name.appendFormat("Logging for this PID:");
                }
                android::String8 size("Size");
                android::String8 pruned("Pruned");
                format_line(output, name, size, pruned);

                name.setTo("  PID/UID   COMMAND LINE");
                size.setTo("BYTES");
                pruned.setTo("LINES");
                format_line(output, name, size, pruned);

                headerPrinted = true;
            }

            android::String8 name("");
            name.appendFormat("%5u/%u", entry->getKey(), u);
            const char *n = entry->getName();
            if (n) {
                name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", n);
            } else {
                char *un = uidToName(u);
                if (un) {
                    name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", un);
                    free(un);
                }
            }

            android::String8 size("");
            size.appendFormat("%zu", entry->getSizes());

            android::String8 pruned("");
            size_t dropped = entry->getDropped();
            if (dropped) {
                pruned.appendFormat("%zu", dropped);
            }

            format_line(output, name, size, pruned);
        }
    }

    if (enable) {
        // Tid table
        bool headerPrinted = false;
        // sort() returns list of references, unique_ptr makes sure self-delete
        std::unique_ptr<const TidEntry *[]> sorted = tidTable.sort(maximum_sorted_entries);
        ssize_t index = -1;
        while ((index = tidTable.next(index, sorted, maximum_sorted_entries)) >= 0) {
            const TidEntry *entry = sorted[index];
            uid_t u = entry->getUid();
            if ((uid != AID_ROOT) && (u != uid)) {
                continue;
            }

            if (!headerPrinted) { // Only print header if we have table to print
                output.appendFormat("\n\n");
                android::String8 name("Chattiest TIDs:");
                android::String8 size("Size");
                android::String8 pruned("Pruned");
                format_line(output, name, size, pruned);

                name.setTo("  TID/UID   COMM");
                size.setTo("BYTES");
                pruned.setTo("LINES");
                format_line(output, name, size, pruned);

                headerPrinted = true;
            }

            android::String8 name("");
            name.appendFormat("%5u/%u", entry->getKey(), u);
            const char *n = entry->getName();
            if (n) {
                name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", n);
            } else {
                // if we do not have a PID name, lets punt to try UID name?
                char *un = uidToName(u);
                if (un) {
                    name.appendFormat("%*s%s", (int)std::max(12 - name.length(), (size_t)1), "", un);
                    free(un);
                }
                // We tried, better to not have a name at all, we still
                // have TID/UID by number to report in any case.
            }

            android::String8 size("");
            size.appendFormat("%zu", entry->getSizes());

            android::String8 pruned("");
            size_t dropped = entry->getDropped();
            if (dropped) {
                pruned.appendFormat("%zu", dropped);
            }

            format_line(output, name, size, pruned);
        }
    }

    if (enable && (logMask & (1 << LOG_ID_EVENTS))) {
        // Tag table
        bool headerPrinted = false;
        std::unique_ptr<const TagEntry *[]> sorted = tagTable.sort(maximum_sorted_entries);
        ssize_t index = -1;
        while ((index = tagTable.next(index, sorted, maximum_sorted_entries)) >= 0) {
            const TagEntry *entry = sorted[index];
            uid_t u = entry->getUid();
            if ((uid != AID_ROOT) && (u != uid)) {
                continue;
            }

            android::String8 pruned("");

            if (!headerPrinted) {
                output.appendFormat("\n\n");
                android::String8 name("Chattiest events log buffer TAGs:");
                android::String8 size("Size");
                format_line(output, name, size, pruned);

                name.setTo("    TAG/UID   TAGNAME");
                size.setTo("BYTES");
                format_line(output, name, size, pruned);

                headerPrinted = true;
            }

            android::String8 name("");
            if (u == (uid_t)-1) {
                name.appendFormat("%7u", entry->getKey());
            } else {
                name.appendFormat("%7u/%u", entry->getKey(), u);
            }
            const char *n = entry->getName();
            if (n) {
                name.appendFormat("%*s%s", (int)std::max(14 - name.length(), (size_t)1), "", n);
            }

            android::String8 size("");
            size.appendFormat("%zu", entry->getSizes());

            format_line(output, name, size, pruned);
        }
    }

    *buf = strdup(output.string());
}
예제 #11
0
int main(int argc, char **argv)
{
    int err;
    int hasSetLogFormat = 0;
    int clearLog = 0;
    int getLogSize = 0;
    unsigned long setLogSize = 0;
    int getPruneList = 0;
    char *setPruneList = NULL;
    int printStatistics = 0;
    int mode = O_RDONLY;
    const char *forceFilters = NULL;
    log_device_t* devices = NULL;
    log_device_t* dev;
    bool needBinary = false;
    struct logger_list *logger_list;
    unsigned int tail_lines = 0;
    log_time tail_time(log_time::EPOCH);

    signal(SIGPIPE, exit);

    g_logformat = android_log_format_new();

    if (argc == 2 && 0 == strcmp(argv[1], "--help")) {
        android::show_help(argv[0]);
        exit(0);
    }

    for (;;) {
        int ret;

        ret = getopt(argc, argv, "cdt:T:gG:sQf:r:n:v:b:BSpP:");

        if (ret < 0) {
            break;
        }

        switch(ret) {
            case 's':
                // default to all silent
                android_log_addFilterRule(g_logformat, "*:s");
            break;

            case 'c':
                clearLog = 1;
                mode = O_WRONLY;
            break;

            case 'd':
                mode = O_RDONLY | O_NDELAY;
            break;

            case 't':
                mode = O_RDONLY | O_NDELAY;
                /* FALLTHRU */
            case 'T':
                if (strspn(optarg, "0123456789") != strlen(optarg)) {
                    char *cp = tail_time.strptime(optarg,
                                                  log_time::default_format);
                    if (!cp) {
                        fprintf(stderr,
                                "ERROR: -%c \"%s\" not in \"%s\" time format\n",
                                ret, optarg, log_time::default_format);
                        exit(1);
                    }
                    if (*cp) {
                        char c = *cp;
                        *cp = '\0';
                        fprintf(stderr,
                                "WARNING: -%c \"%s\"\"%c%s\" time truncated\n",
                                ret, optarg, c, cp + 1);
                        *cp = c;
                    }
                } else {
                    tail_lines = atoi(optarg);
                    if (!tail_lines) {
                        fprintf(stderr,
                                "WARNING: -%c %s invalid, setting to 1\n",
                                ret, optarg);
                        tail_lines = 1;
                    }
                }
            break;

            case 'g':
                getLogSize = 1;
            break;

            case 'G': {
                // would use atol if not for the multiplier
                char *cp = optarg;
                setLogSize = 0;
                while (('0' <= *cp) && (*cp <= '9')) {
                    setLogSize *= 10;
                    setLogSize += *cp - '0';
                    ++cp;
                }

                switch(*cp) {
                case 'g':
                case 'G':
                    setLogSize *= 1024;
                /* FALLTHRU */
                case 'm':
                case 'M':
                    setLogSize *= 1024;
                /* FALLTHRU */
                case 'k':
                case 'K':
                    setLogSize *= 1024;
                /* FALLTHRU */
                case '\0':
                break;

                default:
                    setLogSize = 0;
                }

                if (!setLogSize) {
                    fprintf(stderr, "ERROR: -G <num><multiplier>\n");
                    exit(1);
                }
            }
            break;

            case 'p':
                getPruneList = 1;
            break;

            case 'P':
                setPruneList = optarg;
            break;

            case 'b': {
                if (strcmp(optarg, "all") == 0) {
                    while (devices) {
                        dev = devices;
                        devices = dev->next;
                        delete dev;
                    }

                    devices = dev = NULL;
                    android::g_devCount = 0;
                    needBinary = false;
                    for(int i = LOG_ID_MIN; i < LOG_ID_MAX; ++i) {
                        const char *name = android_log_id_to_name((log_id_t)i);
                        log_id_t log_id = android_name_to_log_id(name);

                        if (log_id != (log_id_t)i) {
                            continue;
                        }

                        bool binary = strcmp(name, "events") == 0;
                        log_device_t* d = new log_device_t(name, binary, *name);

                        if (dev) {
                            dev->next = d;
                            dev = d;
                        } else {
                            devices = dev = d;
                        }
                        android::g_devCount++;
                        if (binary) {
                            needBinary = true;
                        }
                    }
                    break;
                }

                bool binary = strcmp(optarg, "events") == 0;
                if (binary) {
                    needBinary = true;
                }

                if (devices) {
                    dev = devices;
                    while (dev->next) {
                        dev = dev->next;
                    }
                    dev->next = new log_device_t(optarg, binary, optarg[0]);
                } else {
                    devices = new log_device_t(optarg, binary, optarg[0]);
                }
                android::g_devCount++;
            }
            break;

            case 'B':
                android::g_printBinary = 1;
            break;

            case 'f':
                // redirect output to a file

                android::g_outputFileName = optarg;

            break;

            case 'r':
                if (optarg == NULL) {
                    android::g_logRotateSizeKBytes
                                = DEFAULT_LOG_ROTATE_SIZE_KBYTES;
                } else {
                    if (!isdigit(optarg[0])) {
                        fprintf(stderr,"Invalid parameter to -r\n");
                        android::show_help(argv[0]);
                        exit(-1);
                    }
                    android::g_logRotateSizeKBytes = atoi(optarg);
                }
            break;

            case 'n':
                if (!isdigit(optarg[0])) {
                    fprintf(stderr,"Invalid parameter to -r\n");
                    android::show_help(argv[0]);
                    exit(-1);
                }

                android::g_maxRotatedLogs = atoi(optarg);
            break;

            case 'v':
                err = setLogFormat (optarg);
                if (err < 0) {
                    fprintf(stderr,"Invalid parameter to -v\n");
                    android::show_help(argv[0]);
                    exit(-1);
                }

                if (strcmp("color", optarg)) { // exception for modifiers
                    hasSetLogFormat = 1;
                }
            break;

            case 'Q':
                /* this is a *hidden* option used to start a version of logcat                 */
                /* in an emulated device only. it basically looks for androidboot.logcat=      */
                /* on the kernel command line. If something is found, it extracts a log filter */
                /* and uses it to run the program. If nothing is found, the program should     */
                /* quit immediately                                                            */
#define  KERNEL_OPTION  "androidboot.logcat="
#define  CONSOLE_OPTION "androidboot.console="
                {
                    int          fd;
                    char*        logcat;
                    char*        console;
                    int          force_exit = 1;
                    static char  cmdline[1024];

                    fd = open("/proc/cmdline", O_RDONLY);
                    if (fd >= 0) {
                        int  n = read(fd, cmdline, sizeof(cmdline)-1 );
                        if (n < 0) n = 0;
                        cmdline[n] = 0;
                        close(fd);
                    } else {
                        cmdline[0] = 0;
                    }

                    logcat  = strstr( cmdline, KERNEL_OPTION );
                    console = strstr( cmdline, CONSOLE_OPTION );
                    if (logcat != NULL) {
                        char*  p = logcat + sizeof(KERNEL_OPTION)-1;;
                        char*  q = strpbrk( p, " \t\n\r" );;

                        if (q != NULL)
                            *q = 0;

                        forceFilters = p;
                        force_exit   = 0;
                    }
                    /* if nothing found or invalid filters, exit quietly */
                    if (force_exit)
                        exit(0);

                    /* redirect our output to the emulator console */
                    if (console) {
                        char*  p = console + sizeof(CONSOLE_OPTION)-1;
                        char*  q = strpbrk( p, " \t\n\r" );
                        char   devname[64];
                        int    len;

                        if (q != NULL) {
                            len = q - p;
                        } else
                            len = strlen(p);

                        len = snprintf( devname, sizeof(devname), "/dev/%.*s", len, p );
                        fprintf(stderr, "logcat using %s (%d)\n", devname, len);
                        if (len < (int)sizeof(devname)) {
                            fd = open( devname, O_WRONLY );
                            if (fd >= 0) {
                                dup2(fd, 1);
                                dup2(fd, 2);
                                close(fd);
                            }
                        }
                    }
                }
                break;

            case 'S':
                printStatistics = 1;
                break;

            default:
                fprintf(stderr,"Unrecognized Option\n");
                android::show_help(argv[0]);
                exit(-1);
            break;
        }
    }

    if (!devices) {
        dev = devices = new log_device_t("main", false, 'm');
        android::g_devCount = 1;
        if (android_name_to_log_id("system") == LOG_ID_SYSTEM) {
            dev = dev->next = new log_device_t("system", false, 's');
            android::g_devCount++;
        }
        if (android_name_to_log_id("crash") == LOG_ID_CRASH) {
            dev = dev->next = new log_device_t("crash", false, 'c');
            android::g_devCount++;
        }
    }

    if (android::g_logRotateSizeKBytes != 0
        && android::g_outputFileName == NULL
    ) {
        fprintf(stderr,"-r requires -f as well\n");
        android::show_help(argv[0]);
        exit(-1);
    }

    android::setupOutput();

    if (hasSetLogFormat == 0) {
        const char* logFormat = getenv("ANDROID_PRINTF_LOG");

        if (logFormat != NULL) {
            err = setLogFormat(logFormat);
            if (err < 0) {
                fprintf(stderr, "invalid format in ANDROID_PRINTF_LOG '%s'\n",
                                    logFormat);
            }
        } else {
            setLogFormat("threadtime");
        }
    }

    if (forceFilters) {
        err = android_log_addFilterString(g_logformat, forceFilters);
        if (err < 0) {
            fprintf (stderr, "Invalid filter expression in -logcat option\n");
            exit(0);
        }
    } else if (argc == optind) {
        // Add from environment variable
        char *env_tags_orig = getenv("ANDROID_LOG_TAGS");

        if (env_tags_orig != NULL) {
            err = android_log_addFilterString(g_logformat, env_tags_orig);

            if (err < 0) {
                fprintf(stderr, "Invalid filter expression in"
                                    " ANDROID_LOG_TAGS\n");
                android::show_help(argv[0]);
                exit(-1);
            }
        }
    } else {
        // Add from commandline
        for (int i = optind ; i < argc ; i++) {
            err = android_log_addFilterString(g_logformat, argv[i]);

            if (err < 0) {
                fprintf (stderr, "Invalid filter expression '%s'\n", argv[i]);
                android::show_help(argv[0]);
                exit(-1);
            }
        }
    }

    dev = devices;
    if (tail_time != log_time::EPOCH) {
        logger_list = android_logger_list_alloc_time(mode, tail_time, 0);
    } else {
        logger_list = android_logger_list_alloc(mode, tail_lines, 0);
    }
    while (dev) {
        dev->logger_list = logger_list;
        dev->logger = android_logger_open(logger_list,
                                          android_name_to_log_id(dev->device));
        if (!dev->logger) {
            fprintf(stderr, "Unable to open log device '%s'\n", dev->device);
            exit(EXIT_FAILURE);
        }

        if (clearLog) {
            int ret;
            ret = android_logger_clear(dev->logger);
            if (ret) {
                perror("failed to clear the log");
                exit(EXIT_FAILURE);
            }
        }

        if (setLogSize && android_logger_set_log_size(dev->logger, setLogSize)) {
            perror("failed to set the log size");
            exit(EXIT_FAILURE);
        }

        if (getLogSize) {
            long size, readable;

            size = android_logger_get_log_size(dev->logger);
            if (size < 0) {
                perror("failed to get the log size");
                exit(EXIT_FAILURE);
            }

            readable = android_logger_get_log_readable_size(dev->logger);
            if (readable < 0) {
                perror("failed to get the readable log size");
                exit(EXIT_FAILURE);
            }

            printf("%s: ring buffer is %ld%sb (%ld%sb consumed), "
                   "max entry is %db, max payload is %db\n", dev->device,
                   value_of_size(size), multiplier_of_size(size),
                   value_of_size(readable), multiplier_of_size(readable),
                   (int) LOGGER_ENTRY_MAX_LEN, (int) LOGGER_ENTRY_MAX_PAYLOAD);
        }

        dev = dev->next;
    }

    if (setPruneList) {
        size_t len = strlen(setPruneList) + 32; // margin to allow rc
        char *buf = (char *) malloc(len);

        strcpy(buf, setPruneList);
        int ret = android_logger_set_prune_list(logger_list, buf, len);
        free(buf);

        if (ret) {
            perror("failed to set the prune list");
            exit(EXIT_FAILURE);
        }
    }

    if (printStatistics || getPruneList) {
        size_t len = 8192;
        char *buf;

        for(int retry = 32;
                (retry >= 0) && ((buf = new char [len]));
                delete [] buf, --retry) {
            if (getPruneList) {
                android_logger_get_prune_list(logger_list, buf, len);
            } else {
                android_logger_get_statistics(logger_list, buf, len);
            }
            buf[len-1] = '\0';
            size_t ret = atol(buf) + 1;
            if (ret < 4) {
                delete [] buf;
                buf = NULL;
                break;
            }
            bool check = ret <= len;
            len = ret;
            if (check) {
                break;
            }
        }

        if (!buf) {
            perror("failed to read data");
            exit(EXIT_FAILURE);
        }

        // remove trailing FF
        char *cp = buf + len - 1;
        *cp = '\0';
        bool truncated = *--cp != '\f';
        if (!truncated) {
            *cp = '\0';
        }

        // squash out the byte count
        cp = buf;
        if (!truncated) {
            while (isdigit(*cp)) {
                ++cp;
            }
            if (*cp == '\n') {
                ++cp;
            }
        }

        printf("%s", cp);
        delete [] buf;
        exit(0);
    }


    if (getLogSize) {
        exit(0);
    }
    if (setLogSize || setPruneList) {
        exit(0);
    }
    if (clearLog) {
        exit(0);
    }

    //LOG_EVENT_INT(10, 12345);
    //LOG_EVENT_LONG(11, 0x1122334455667788LL);
    //LOG_EVENT_STRING(0, "whassup, doc?");

    if (needBinary)
        android::g_eventTagMap = android_openEventTagMap(EVENT_TAG_MAP_FILE);

    while (1) {
        struct log_msg log_msg;
        int ret = android_logger_list_read(logger_list, &log_msg);

        if (ret == 0) {
            fprintf(stderr, "read: Unexpected EOF!\n");
            exit(EXIT_FAILURE);
        }

        if (ret < 0) {
            if (ret == -EAGAIN) {
                break;
            }

            if (ret == -EIO) {
                fprintf(stderr, "read: Unexpected EOF!\n");
                exit(EXIT_FAILURE);
            }
            if (ret == -EINVAL) {
                fprintf(stderr, "read: unexpected length.\n");
                exit(EXIT_FAILURE);
            }
            perror("logcat read failure");
            exit(EXIT_FAILURE);
        }

        for(dev = devices; dev; dev = dev->next) {
            if (android_name_to_log_id(dev->device) == log_msg.id()) {
                break;
            }
        }
        if (!dev) {
            fprintf(stderr, "read: Unexpected log ID!\n");
            exit(EXIT_FAILURE);
        }

        android::maybePrintStart(dev);
        if (android::g_printBinary) {
            android::printBinary(&log_msg);
        } else {
            android::processBuffer(dev, &log_msg);
        }
    }

    android_logger_list_free(logger_list);

    return 0;
}
예제 #12
0
void LogStatistics::format(char **buf,
                           uid_t uid, unsigned int logMask, log_time oldest) {
    static const unsigned short spaces_current = 13;
    static const unsigned short spaces_total = 19;

    if (*buf) {
        free(*buf);
        *buf = NULL;
    }

    android::String8 string("        span -> size/num");
    size_t oldLength;
    short spaces = 2;

    log_id_for_each(i) {
        if (!(logMask & (1 << i))) {
            continue;
        }
        oldLength = string.length();
        if (spaces < 0) {
            spaces = 0;
        }
        string.appendFormat("%*s%s", spaces, "", android_log_id_to_name(i));
        spaces += spaces_total + oldLength - string.length();

        LidStatistics &l = id(i);
        l.sort();

        UidStatisticsCollection::iterator iu;
        for (iu = l.begin(); iu != l.end(); ++iu) {
            (*iu)->sort();
        }
    }

    spaces = 1;
    log_time t(CLOCK_MONOTONIC);
    unsigned long long d;
    if (mStatistics) {
        d = t.nsec() - start.nsec();
        string.appendFormat("\nTotal%4llu:%02llu:%02llu.%09llu",
                  d / NS_PER_SEC / 60 / 60, (d / NS_PER_SEC / 60) % 60,
                  (d / NS_PER_SEC) % 60, d % NS_PER_SEC);

        log_id_for_each(i) {
            if (!(logMask & (1 << i))) {
                continue;
            }
            oldLength = string.length();
            if (spaces < 0) {
                spaces = 0;
            }
            string.appendFormat("%*s%zu/%zu", spaces, "",
                                sizesTotal(i), elementsTotal(i));
            spaces += spaces_total + oldLength - string.length();
        }
        spaces = 1;
    }

    d = t.nsec() - oldest.nsec();
    string.appendFormat("\nNow%6llu:%02llu:%02llu.%09llu",
                  d / NS_PER_SEC / 60 / 60, (d / NS_PER_SEC / 60) % 60,
                  (d / NS_PER_SEC) % 60, d % NS_PER_SEC);

    log_id_for_each(i) {
        if (!(logMask & (1 << i))) {
            continue;
        }

        size_t els = elements(i);
        if (els) {
            oldLength = string.length();
            if (spaces < 0) {
                spaces = 0;
            }
            string.appendFormat("%*s%zu/%zu", spaces, "", sizes(i), els);
            spaces -= string.length() - oldLength;
        }
        spaces += spaces_total;
    }

    // Construct list of worst spammers by Pid
    static const unsigned char num_spammers = 10;
    bool header = false;

    log_id_for_each(i) {
        if (!(logMask & (1 << i))) {
            continue;
        }

        PidStatisticsCollection pids;
        pids.clear();

        LidStatistics &l = id(i);
        UidStatisticsCollection::iterator iu;
        for (iu = l.begin(); iu != l.end(); ++iu) {
            UidStatistics &u = *(*iu);
            PidStatisticsCollection::iterator ip;
            for (ip = u.begin(); ip != u.end(); ++ip) {
                PidStatistics *p = (*ip);
                if (p->getPid() == p->gone) {
                    break;
                }

                size_t mySizes = p->sizes();

                PidStatisticsCollection::iterator q;
                unsigned char num = 0;
                for (q = pids.begin(); q != pids.end(); ++q) {
                    if (mySizes > (*q)->sizes()) {
                        pids.insert(q, p);
                        break;
                    }
                    // do we need to traverse deeper in the list?
                    if (++num > num_spammers) {
                        break;
                    }
                }
                if (q == pids.end()) {
                   pids.push_back(p);
                }
            }
        }

        size_t threshold = sizes(i);
        if (threshold < 65536) {
            threshold = 65536;
        }
        threshold /= 100;

        PidStatisticsCollection::iterator pt = pids.begin();

        for(int line = 0;
                (pt != pids.end()) && (line < num_spammers);
                ++line, pt = pids.erase(pt)) {
            PidStatistics *p = *pt;

            size_t sizes = p->sizes();
            if (sizes < threshold) {
                break;
            }

            char *name = p->getName();
            pid_t pid = p->getPid();
            if (!name || !*name) {
                name = pidToName(pid);
                if (name) {
                    if (*name) {
                        p->setName(name);
                    } else {
                        free(name);
                        name = NULL;
                    }
                }
            }

            if (!header) {
                string.appendFormat("\n\nChattiest clients:\n"
                                    "log id %-*s PID[?] name",
                                    spaces_total, "size/total");
                header = true;
            }

            size_t sizesTotal = p->sizesTotal();

            android::String8 sz("");
            sz.appendFormat((sizes != sizesTotal) ? "%zu/%zu" : "%zu",
                            sizes, sizesTotal);

            android::String8 pd("");
            pd.appendFormat("%u%c", pid, p->pidGone() ? '?' : ' ');

            string.appendFormat("\n%-7s%-*s %-7s%s",
                                line ? "" : android_log_id_to_name(i),
                                spaces_total, sz.string(), pd.string(),
                                name ? name : "");
        }

        pids.clear();
    }

    if (dgramQlenStatistics) {
        const unsigned short spaces_time = 6;
        const unsigned long long max_seconds = 100000;
        spaces = 0;
        string.append("\n\nMinimum time between log events per max_dgram_qlen:\n");
        for(unsigned short i = 0; dgramQlen(i); ++i) {
            oldLength = string.length();
            if (spaces < 0) {
                spaces = 0;
            }
            string.appendFormat("%*s%u", spaces, "", dgramQlen(i));
            spaces += spaces_time + oldLength - string.length();
        }
        string.append("\n");
        spaces = 0;
        unsigned short n;
        for(unsigned short i = 0; (n = dgramQlen(i)); ++i) {
            unsigned long long duration = minimum(i);
            if (duration) {
                duration /= n;
                if (duration >= (NS_PER_SEC * max_seconds)) {
                    duration = NS_PER_SEC * (max_seconds - 1);
                }
                oldLength = string.length();
                if (spaces < 0) {
                    spaces = 0;
                }
                string.appendFormat("%*s", spaces, "");
                if (duration >= (NS_PER_SEC * 10)) {
                    string.appendFormat("%llu",
                        (duration + (NS_PER_SEC / 2))
                            / NS_PER_SEC);
                } else if (duration >= (NS_PER_SEC / (1000 / 10))) {
                    string.appendFormat("%llum",
                        (duration + (NS_PER_SEC / 2 / 1000))
                            / (NS_PER_SEC / 1000));
                } else if (duration >= (NS_PER_SEC / (1000000 / 10))) {
                    string.appendFormat("%lluu",
                        (duration + (NS_PER_SEC / 2 / 1000000))
                            / (NS_PER_SEC / 1000000));
                } else {
                    string.appendFormat("%llun", duration);
                }
                spaces -= string.length() - oldLength;
            }
            spaces += spaces_time;
        }
    }

    log_id_for_each(i) {
        if (!(logMask & (1 << i))) {
            continue;
        }

        header = false;
        bool first = true;

        UidStatisticsCollection::iterator ut;
        for(ut = id(i).begin(); ut != id(i).end(); ++ut) {
            UidStatistics *up = *ut;
            if ((uid != AID_ROOT) && (uid != up->getUid())) {
                continue;
            }

            PidStatisticsCollection::iterator pt = up->begin();
            if (pt == up->end()) {
                continue;
            }

            android::String8 intermediate;

            if (!header) {
                // header below tuned to match spaces_total and spaces_current
                spaces = 0;
                intermediate = string.format("%s: UID/PID Total size/num",
                                             android_log_id_to_name(i));
                string.appendFormat("\n\n%-31sNow          "
                                         "UID/PID[?]  Total              Now",
                                    intermediate.string());
                intermediate.clear();
                header = true;
            }

            bool oneline = ++pt == up->end();
            --pt;

            if (!oneline) {
                first = true;
            } else if (!first && (spaces > 0)) {
                string.appendFormat("%*s", spaces, "");
            }
            spaces = 0;

            uid_t u = up->getUid();
            PidStatistics *pp = *pt;
            pid_t p = pp->getPid();

            intermediate = string.format(oneline
                                             ? ((p == PidStatistics::gone)
                                                 ? "%d/?"
                                                 : "%d/%d%c")
                                             : "%d",
                                         u, p, pp->pidGone() ? '?' : '\0');
            string.appendFormat(first ? "\n%-12s" : "%-12s",
                                intermediate.string());
            intermediate.clear();

            size_t elsTotal = up->elementsTotal();
            oldLength = string.length();
            string.appendFormat("%zu/%zu", up->sizesTotal(), elsTotal);
            spaces += spaces_total + oldLength - string.length();

            size_t els = up->elements();
            if (els == elsTotal) {
                if (spaces < 0) {
                    spaces = 0;
                }
                string.appendFormat("%*s=", spaces, "");
                spaces = -1;
            } else if (els) {
                oldLength = string.length();
                if (spaces < 0) {
                    spaces = 0;
                }
                string.appendFormat("%*s%zu/%zu", spaces, "", up->sizes(), els);
                spaces -= string.length() - oldLength;
            }
            spaces += spaces_current;

            first = !first;

            if (oneline) {
                continue;
            }

            size_t gone_szs = 0;
            size_t gone_els = 0;

            for(; pt != up->end(); ++pt) {
                pp = *pt;
                p = pp->getPid();

                // If a PID no longer has any current logs, and is not
                // active anymore, skip & report totals for gone.
                elsTotal = pp->elementsTotal();
                size_t szsTotal = pp->sizesTotal();
                if (p == pp->gone) {
                    gone_szs += szsTotal;
                    gone_els += elsTotal;
                    continue;
                }
                els = pp->elements();
                bool gone = pp->pidGone();
                if (gone && (els == 0)) {
                    // ToDo: garbage collection: move this statistical bucket
                    //       from its current UID/PID to UID/? (races and
                    //       wrap around are our achilles heel). Below is
                    //       merely lipservice to catch PIDs that were still
                    //       around when the stats were pruned to zero.
                    gone_szs += szsTotal;
                    gone_els += elsTotal;
                    continue;
                }

                if (!first && (spaces > 0)) {
                    string.appendFormat("%*s", spaces, "");
                }
                spaces = 0;

                intermediate = string.format(gone ? "%d/%d?" : "%d/%d", u, p);
                string.appendFormat(first ? "\n%-12s" : "%-12s",
                                    intermediate.string());
                intermediate.clear();

                oldLength = string.length();
                string.appendFormat("%zu/%zu", szsTotal, elsTotal);
                spaces += spaces_total + oldLength - string.length();

                if (els == elsTotal) {
                    if (spaces < 0) {
                        spaces = 0;
                    }
                    string.appendFormat("%*s=", spaces, "");
                    spaces = -1;
                } else if (els) {
                    oldLength = string.length();
                    if (spaces < 0) {
                        spaces = 0;
                    }
                    string.appendFormat("%*s%zu/%zu", spaces, "",
                                        pp->sizes(), els);
                    spaces -= string.length() - oldLength;
                }
                spaces += spaces_current;

                first = !first;
            }

            if (gone_els) {
                if (!first && (spaces > 0)) {
                    string.appendFormat("%*s", spaces, "");
                }

                intermediate = string.format("%d/?", u);
                string.appendFormat(first ? "\n%-12s" : "%-12s",
                                    intermediate.string());
                intermediate.clear();

                spaces = spaces_total + spaces_current;

                oldLength = string.length();
                string.appendFormat("%zu/%zu", gone_szs, gone_els);
                spaces -= string.length() - oldLength;

                first = !first;
            }
        }
    }

    *buf = strdup(string.string());
}