diff --git a/adb/Android.mk b/adb/Android.mk
index 155c6e5..62f012c 100644
--- a/adb/Android.mk
+++ b/adb/Android.mk
@@ -34,7 +34,7 @@
 
 ifeq ($(HOST_OS),windows)
   USB_SRCS := usb_windows.c
-  EXTRA_SRCS := get_my_path_windows.c ../libcutils/list.c
+  EXTRA_SRCS := get_my_path_windows.c
   EXTRA_STATIC_LIBS := AdbWinApi
   ifneq ($(strip $(USE_CYGWIN)),)
     # Pure cygwin case
@@ -114,8 +114,7 @@
 	jdwp_service.c \
 	framebuffer_service.c \
 	remount_service.c \
-	usb_linux_client.c \
-	log_service.c
+	usb_linux_client.c
 
 LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter
 LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE
diff --git a/adb/SERVICES.TXT b/adb/SERVICES.TXT
index 5966686..7f85dc3 100644
--- a/adb/SERVICES.TXT
+++ b/adb/SERVICES.TXT
@@ -198,11 +198,6 @@
     Variants of local:<path> that are used to access other Android
     socket namespaces.
 
-log:<name>
-    Opens one of the system logs (/dev/log/<name>) and allows the client
-    to read them directly. Used to implement 'adb logcat'. The stream
-    will be read-only for the client.
-
 framebuffer:
     This service is used to send snapshots of the framebuffer to a client.
     It requires sufficient privileges but works as follow:
diff --git a/adb/adb.h b/adb/adb.h
index c85b02a..6f5c93c 100644
--- a/adb/adb.h
+++ b/adb/adb.h
@@ -330,9 +330,7 @@
 } BackupOperation;
 int backup_service(BackupOperation operation, char* args);
 void framebuffer_service(int fd, void *cookie);
-void log_service(int fd, void *cookie);
 void remount_service(int fd, void *cookie);
-char * get_log_file_path(const char * log_name);
 #endif
 
 /* packet allocator */
diff --git a/adb/file_sync_service.c b/adb/file_sync_service.c
index c30f9fb..c2401b8 100644
--- a/adb/file_sync_service.c
+++ b/adb/file_sync_service.c
@@ -338,11 +338,14 @@
     if(!tmp || errno) {
         mode = 0644;
         is_link = 0;
+    } else {
+        struct stat st;
+        /* Don't delete files before copying if they are not "regular" */
+        if(lstat(path, &st) || S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
+            adb_unlink(path);
+        }
     }
 
-    adb_unlink(path);
-
-
 #ifdef HAVE_SYMLINKS
     if(is_link)
         ret = handle_send_link(s, path, buffer);
diff --git a/adb/log_service.c b/adb/log_service.c
deleted file mode 100644
index af24356..0000000
--- a/adb/log_service.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Copyright (C) 2007 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 <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/socket.h>
-#include <log/logger.h>
-#include "sysdeps.h"
-#include "adb.h"
-
-#define LOG_FILE_DIR    "/dev/log/"
-
-void write_log_entry(int fd, struct logger_entry *buf);
-
-void log_service(int fd, void *cookie)
-{
-    /* get the name of the log filepath to read */
-    char * log_filepath = cookie;
-
-    /* open the log file. */
-    int logfd = unix_open(log_filepath, O_RDONLY);
-    if (logfd < 0) {
-        goto done;
-    }
-
-    // temp buffer to read the entries
-    unsigned char buf[LOGGER_ENTRY_MAX_LEN + 1] __attribute__((aligned(4)));
-    struct logger_entry *entry = (struct logger_entry *) buf;
-
-    while (1) {
-        int ret;
-
-        ret = unix_read(logfd, entry, LOGGER_ENTRY_MAX_LEN);
-        if (ret < 0) {
-            if (errno == EINTR || errno == EAGAIN)
-                continue;
-            // perror("logcat read");
-            goto done;
-        }
-        else if (!ret) {
-            // fprintf(stderr, "read: Unexpected EOF!\n");
-            goto done;
-        }
-
-        /* NOTE: driver guarantees we read exactly one full entry */
-
-        entry->msg[entry->len] = '\0';
-
-        write_log_entry(fd, entry);
-    }
-
-done:
-    unix_close(fd);
-    free(log_filepath);
-}
-
-/* returns the full path to the log file in a newly allocated string */
-char * get_log_file_path(const char * log_name) {
-    char *log_device = malloc(strlen(LOG_FILE_DIR) + strlen(log_name) + 1);
-
-    strcpy(log_device, LOG_FILE_DIR);
-    strcat(log_device, log_name);
-
-    return log_device;
-}
-
-
-/* prints one log entry into the file descriptor fd */
-void write_log_entry(int fd, struct logger_entry *buf)
-{
-    size_t size = sizeof(struct logger_entry) + buf->len;
-
-    writex(fd, buf, size);
-}
diff --git a/adb/services.c b/adb/services.c
index 951048e..95cd7d0 100644
--- a/adb/services.c
+++ b/adb/services.c
@@ -368,8 +368,6 @@
         ret = create_service_thread(framebuffer_service, 0);
     } else if (!strncmp(name, "jdwp:", 5)) {
         ret = create_jdwp_connection_fd(atoi(name+5));
-    } else if (!strncmp(name, "log:", 4)) {
-        ret = create_service_thread(log_service, get_log_file_path(name + 4));
     } else if(!HOST && !strncmp(name, "shell:", 6)) {
         if(name[6]) {
             ret = create_subproc_thread(name + 6);
diff --git a/charger/Android.mk b/charger/Android.mk
deleted file mode 100644
index b9d3473..0000000
--- a/charger/Android.mk
+++ /dev/null
@@ -1,61 +0,0 @@
-# Copyright 2011 The Android Open Source Project
-
-ifneq ($(BUILD_TINY_ANDROID),true)
-
-LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := \
-	charger.c
-
-ifeq ($(strip $(BOARD_CHARGER_DISABLE_INIT_BLANK)),true)
-LOCAL_CFLAGS := -DCHARGER_DISABLE_INIT_BLANK
-endif
-
-ifeq ($(strip $(BOARD_CHARGER_ENABLE_SUSPEND)),true)
-LOCAL_CFLAGS += -DCHARGER_ENABLE_SUSPEND
-endif
-
-LOCAL_MODULE := charger
-LOCAL_MODULE_TAGS := optional
-LOCAL_FORCE_STATIC_EXECUTABLE := true
-LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
-LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_UNSTRIPPED)
-
-LOCAL_C_INCLUDES := bootable/recovery
-
-LOCAL_STATIC_LIBRARIES := libminui libpixelflinger_static libpng
-ifeq ($(strip $(BOARD_CHARGER_ENABLE_SUSPEND)),true)
-LOCAL_STATIC_LIBRARIES += libsuspend
-endif
-LOCAL_STATIC_LIBRARIES += libz libstdc++ libcutils liblog libm libc
-
-include $(BUILD_EXECUTABLE)
-
-define _add-charger-image
-include $$(CLEAR_VARS)
-LOCAL_MODULE := system_core_charger_$(notdir $(1))
-LOCAL_MODULE_STEM := $(notdir $(1))
-_img_modules += $$(LOCAL_MODULE)
-LOCAL_SRC_FILES := $1
-LOCAL_MODULE_TAGS := optional
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_PATH := $$(TARGET_ROOT_OUT)/res/images/charger
-include $$(BUILD_PREBUILT)
-endef
-
-_img_modules :=
-_images :=
-$(foreach _img, $(call find-subdir-subdir-files, "images", "*.png"), \
-  $(eval $(call _add-charger-image,$(_img))))
-
-include $(CLEAR_VARS)
-LOCAL_MODULE := charger_res_images
-LOCAL_MODULE_TAGS := optional
-LOCAL_REQUIRED_MODULES := $(_img_modules)
-include $(BUILD_PHONY_PACKAGE)
-
-_add-charger-image :=
-_img_modules :=
-
-endif
diff --git a/charger/charger.c b/charger/charger.c
deleted file mode 100644
index 66ddeaf..0000000
--- a/charger/charger.c
+++ /dev/null
@@ -1,1015 +0,0 @@
-/*
- * Copyright (C) 2011 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.
- */
-
-//#define DEBUG_UEVENTS
-#define CHARGER_KLOG_LEVEL 6
-
-#include <dirent.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <linux/input.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/poll.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/un.h>
-#include <time.h>
-#include <unistd.h>
-
-#include <sys/socket.h>
-#include <linux/netlink.h>
-
-#include <cutils/android_reboot.h>
-#include <cutils/klog.h>
-#include <cutils/list.h>
-#include <cutils/misc.h>
-#include <cutils/uevent.h>
-
-#ifdef CHARGER_ENABLE_SUSPEND
-#include <suspend/autosuspend.h>
-#endif
-
-#include "minui/minui.h"
-
-#ifndef max
-#define max(a,b) ((a) > (b) ? (a) : (b))
-#endif
-
-#ifndef min
-#define min(a,b) ((a) < (b) ? (a) : (b))
-#endif
-
-#define ARRAY_SIZE(x)           (sizeof(x)/sizeof(x[0]))
-
-#define MSEC_PER_SEC            (1000LL)
-#define NSEC_PER_MSEC           (1000000LL)
-
-#define BATTERY_UNKNOWN_TIME    (2 * MSEC_PER_SEC)
-#define POWER_ON_KEY_TIME       (2 * MSEC_PER_SEC)
-#define UNPLUGGED_SHUTDOWN_TIME (10 * MSEC_PER_SEC)
-
-#define BATTERY_FULL_THRESH     95
-
-#define LAST_KMSG_PATH          "/proc/last_kmsg"
-#define LAST_KMSG_MAX_SZ        (32 * 1024)
-
-#define LOGE(x...) do { KLOG_ERROR("charger", x); } while (0)
-#define LOGI(x...) do { KLOG_INFO("charger", x); } while (0)
-#define LOGV(x...) do { KLOG_DEBUG("charger", x); } while (0)
-
-struct key_state {
-    bool pending;
-    bool down;
-    int64_t timestamp;
-};
-
-struct power_supply {
-    struct listnode list;
-    char name[256];
-    char type[32];
-    bool online;
-    bool valid;
-    char cap_path[PATH_MAX];
-};
-
-struct frame {
-    const char *name;
-    int disp_time;
-    int min_capacity;
-    bool level_only;
-
-    gr_surface surface;
-};
-
-struct animation {
-    bool run;
-
-    struct frame *frames;
-    int cur_frame;
-    int num_frames;
-
-    int cur_cycle;
-    int num_cycles;
-
-    /* current capacity being animated */
-    int capacity;
-};
-
-struct charger {
-    int64_t next_screen_transition;
-    int64_t next_key_check;
-    int64_t next_pwr_check;
-
-    struct key_state keys[KEY_MAX + 1];
-    int uevent_fd;
-
-    struct listnode supplies;
-    int num_supplies;
-    int num_supplies_online;
-
-    struct animation *batt_anim;
-    gr_surface surf_unknown;
-
-    struct power_supply *battery;
-};
-
-struct uevent {
-    const char *action;
-    const char *path;
-    const char *subsystem;
-    const char *ps_name;
-    const char *ps_type;
-    const char *ps_online;
-};
-
-static struct frame batt_anim_frames[] = {
-    {
-        .name = "charger/battery_0",
-        .disp_time = 750,
-        .min_capacity = 0,
-    },
-    {
-        .name = "charger/battery_1",
-        .disp_time = 750,
-        .min_capacity = 20,
-    },
-    {
-        .name = "charger/battery_2",
-        .disp_time = 750,
-        .min_capacity = 40,
-    },
-    {
-        .name = "charger/battery_3",
-        .disp_time = 750,
-        .min_capacity = 60,
-    },
-    {
-        .name = "charger/battery_4",
-        .disp_time = 750,
-        .min_capacity = 80,
-        .level_only = true,
-    },
-    {
-        .name = "charger/battery_5",
-        .disp_time = 750,
-        .min_capacity = BATTERY_FULL_THRESH,
-    },
-};
-
-static struct animation battery_animation = {
-    .frames = batt_anim_frames,
-    .num_frames = ARRAY_SIZE(batt_anim_frames),
-    .num_cycles = 3,
-};
-
-static struct charger charger_state = {
-    .batt_anim = &battery_animation,
-};
-
-static int char_width;
-static int char_height;
-
-/* current time in milliseconds */
-static int64_t curr_time_ms(void)
-{
-    struct timespec tm;
-    clock_gettime(CLOCK_MONOTONIC, &tm);
-    return tm.tv_sec * MSEC_PER_SEC + (tm.tv_nsec / NSEC_PER_MSEC);
-}
-
-static void clear_screen(void)
-{
-    gr_color(0, 0, 0, 255);
-    gr_fill(0, 0, gr_fb_width(), gr_fb_height());
-};
-
-#define MAX_KLOG_WRITE_BUF_SZ 256
-
-static void dump_last_kmsg(void)
-{
-    char *buf;
-    char *ptr;
-    unsigned sz = 0;
-    int len;
-
-    LOGI("\n");
-    LOGI("*************** LAST KMSG ***************\n");
-    LOGI("\n");
-    buf = load_file(LAST_KMSG_PATH, &sz);
-    if (!buf || !sz) {
-        LOGI("last_kmsg not found. Cold reset?\n");
-        goto out;
-    }
-
-    len = min(sz, LAST_KMSG_MAX_SZ);
-    ptr = buf + (sz - len);
-
-    while (len > 0) {
-        int cnt = min(len, MAX_KLOG_WRITE_BUF_SZ);
-        char yoink;
-        char *nl;
-
-        nl = memrchr(ptr, '\n', cnt - 1);
-        if (nl)
-            cnt = nl - ptr + 1;
-
-        yoink = ptr[cnt];
-        ptr[cnt] = '\0';
-        klog_write(6, "<6>%s", ptr);
-        ptr[cnt] = yoink;
-
-        len -= cnt;
-        ptr += cnt;
-    }
-
-    free(buf);
-
-out:
-    LOGI("\n");
-    LOGI("************* END LAST KMSG *************\n");
-    LOGI("\n");
-}
-
-static int read_file(const char *path, char *buf, size_t sz)
-{
-    int fd;
-    size_t cnt;
-
-    fd = open(path, O_RDONLY, 0);
-    if (fd < 0)
-        goto err;
-
-    cnt = read(fd, buf, sz - 1);
-    if (cnt <= 0)
-        goto err;
-    buf[cnt] = '\0';
-    if (buf[cnt - 1] == '\n') {
-        cnt--;
-        buf[cnt] = '\0';
-    }
-
-    close(fd);
-    return cnt;
-
-err:
-    if (fd >= 0)
-        close(fd);
-    return -1;
-}
-
-static int read_file_int(const char *path, int *val)
-{
-    char buf[32];
-    int ret;
-    int tmp;
-    char *end;
-
-    ret = read_file(path, buf, sizeof(buf));
-    if (ret < 0)
-        return -1;
-
-    tmp = strtol(buf, &end, 0);
-    if (end == buf ||
-        ((end < buf+sizeof(buf)) && (*end != '\n' && *end != '\0')))
-        goto err;
-
-    *val = tmp;
-    return 0;
-
-err:
-    return -1;
-}
-
-static int get_battery_capacity(struct charger *charger)
-{
-    int ret;
-    int batt_cap = -1;
-
-    if (!charger->battery)
-        return -1;
-
-    ret = read_file_int(charger->battery->cap_path, &batt_cap);
-    if (ret < 0 || batt_cap > 100) {
-        batt_cap = -1;
-    }
-
-    return batt_cap;
-}
-
-static struct power_supply *find_supply(struct charger *charger,
-                                        const char *name)
-{
-    struct listnode *node;
-    struct power_supply *supply;
-
-    list_for_each(node, &charger->supplies) {
-        supply = node_to_item(node, struct power_supply, list);
-        if (!strncmp(name, supply->name, sizeof(supply->name)))
-            return supply;
-    }
-    return NULL;
-}
-
-static struct power_supply *add_supply(struct charger *charger,
-                                       const char *name, const char *type,
-                                       const char *path, bool online)
-{
-    struct power_supply *supply;
-
-    supply = calloc(1, sizeof(struct power_supply));
-    if (!supply)
-        return NULL;
-
-    strlcpy(supply->name, name, sizeof(supply->name));
-    strlcpy(supply->type, type, sizeof(supply->type));
-    snprintf(supply->cap_path, sizeof(supply->cap_path),
-             "/sys/%s/capacity", path);
-    supply->online = online;
-    list_add_tail(&charger->supplies, &supply->list);
-    charger->num_supplies++;
-    LOGV("... added %s %s %d\n", supply->name, supply->type, online);
-    return supply;
-}
-
-static void remove_supply(struct charger *charger, struct power_supply *supply)
-{
-    if (!supply)
-        return;
-    list_remove(&supply->list);
-    charger->num_supplies--;
-    free(supply);
-}
-
-#ifdef CHARGER_ENABLE_SUSPEND
-static int request_suspend(bool enable)
-{
-    if (enable)
-        return autosuspend_enable();
-    else
-        return autosuspend_disable();
-}
-#else
-static int request_suspend(bool enable)
-{
-    return 0;
-}
-#endif
-
-static void parse_uevent(const char *msg, struct uevent *uevent)
-{
-    uevent->action = "";
-    uevent->path = "";
-    uevent->subsystem = "";
-    uevent->ps_name = "";
-    uevent->ps_online = "";
-    uevent->ps_type = "";
-
-    /* currently ignoring SEQNUM */
-    while (*msg) {
-#ifdef DEBUG_UEVENTS
-        LOGV("uevent str: %s\n", msg);
-#endif
-        if (!strncmp(msg, "ACTION=", 7)) {
-            msg += 7;
-            uevent->action = msg;
-        } else if (!strncmp(msg, "DEVPATH=", 8)) {
-            msg += 8;
-            uevent->path = msg;
-        } else if (!strncmp(msg, "SUBSYSTEM=", 10)) {
-            msg += 10;
-            uevent->subsystem = msg;
-        } else if (!strncmp(msg, "POWER_SUPPLY_NAME=", 18)) {
-            msg += 18;
-            uevent->ps_name = msg;
-        } else if (!strncmp(msg, "POWER_SUPPLY_ONLINE=", 20)) {
-            msg += 20;
-            uevent->ps_online = msg;
-        } else if (!strncmp(msg, "POWER_SUPPLY_TYPE=", 18)) {
-            msg += 18;
-            uevent->ps_type = msg;
-        }
-
-        /* advance to after the next \0 */
-        while (*msg++)
-            ;
-    }
-
-    LOGV("event { '%s', '%s', '%s', '%s', '%s', '%s' }\n",
-         uevent->action, uevent->path, uevent->subsystem,
-         uevent->ps_name, uevent->ps_type, uevent->ps_online);
-}
-
-static void process_ps_uevent(struct charger *charger, struct uevent *uevent)
-{
-    int online;
-    char ps_type[32];
-    struct power_supply *supply = NULL;
-    int i;
-    bool was_online = false;
-    bool battery = false;
-
-    if (uevent->ps_type[0] == '\0') {
-        char *path;
-        int ret;
-
-        if (uevent->path[0] == '\0')
-            return;
-        ret = asprintf(&path, "/sys/%s/type", uevent->path);
-        if (ret <= 0)
-            return;
-        ret = read_file(path, ps_type, sizeof(ps_type));
-        free(path);
-        if (ret < 0)
-            return;
-    } else {
-        strlcpy(ps_type, uevent->ps_type, sizeof(ps_type));
-    }
-
-    if (!strncmp(ps_type, "Battery", 7))
-        battery = true;
-
-    online = atoi(uevent->ps_online);
-    supply = find_supply(charger, uevent->ps_name);
-    if (supply) {
-        was_online = supply->online;
-        supply->online = online;
-    }
-
-    if (!strcmp(uevent->action, "add")) {
-        if (!supply) {
-            supply = add_supply(charger, uevent->ps_name, ps_type, uevent->path,
-                                online);
-            if (!supply) {
-                LOGE("cannot add supply '%s' (%s %d)\n", uevent->ps_name,
-                     uevent->ps_type, online);
-                return;
-            }
-            /* only pick up the first battery for now */
-            if (battery && !charger->battery)
-                charger->battery = supply;
-        } else {
-            LOGE("supply '%s' already exists..\n", uevent->ps_name);
-        }
-    } else if (!strcmp(uevent->action, "remove")) {
-        if (supply) {
-            if (charger->battery == supply)
-                charger->battery = NULL;
-            remove_supply(charger, supply);
-            supply = NULL;
-        }
-    } else if (!strcmp(uevent->action, "change")) {
-        if (!supply) {
-            LOGE("power supply '%s' not found ('%s' %d)\n",
-                 uevent->ps_name, ps_type, online);
-            return;
-        }
-    } else {
-        return;
-    }
-
-    /* allow battery to be managed in the supply list but make it not
-     * contribute to online power supplies. */
-    if (!battery) {
-        if (was_online && !online)
-            charger->num_supplies_online--;
-        else if (supply && !was_online && online)
-            charger->num_supplies_online++;
-    }
-
-    LOGI("power supply %s (%s) %s (action=%s num_online=%d num_supplies=%d)\n",
-         uevent->ps_name, ps_type, battery ? "" : online ? "online" : "offline",
-         uevent->action, charger->num_supplies_online, charger->num_supplies);
-}
-
-static void process_uevent(struct charger *charger, struct uevent *uevent)
-{
-    if (!strcmp(uevent->subsystem, "power_supply"))
-        process_ps_uevent(charger, uevent);
-}
-
-#define UEVENT_MSG_LEN  1024
-static int handle_uevent_fd(struct charger *charger, int fd)
-{
-    char msg[UEVENT_MSG_LEN+2];
-    int n;
-
-    if (fd < 0)
-        return -1;
-
-    while (true) {
-        struct uevent uevent;
-
-        n = uevent_kernel_multicast_recv(fd, msg, UEVENT_MSG_LEN);
-        if (n <= 0)
-            break;
-        if (n >= UEVENT_MSG_LEN)   /* overflow -- discard */
-            continue;
-
-        msg[n] = '\0';
-        msg[n+1] = '\0';
-
-        parse_uevent(msg, &uevent);
-        process_uevent(charger, &uevent);
-    }
-
-    return 0;
-}
-
-static int uevent_callback(int fd, short revents, void *data)
-{
-    struct charger *charger = data;
-
-    if (!(revents & POLLIN))
-        return -1;
-    return handle_uevent_fd(charger, fd);
-}
-
-/* force the kernel to regenerate the change events for the existing
- * devices, if valid */
-static void do_coldboot(struct charger *charger, DIR *d, const char *event,
-                        bool follow_links, int max_depth)
-{
-    struct dirent *de;
-    int dfd, fd;
-
-    dfd = dirfd(d);
-
-    fd = openat(dfd, "uevent", O_WRONLY);
-    if (fd >= 0) {
-        write(fd, event, strlen(event));
-        close(fd);
-        handle_uevent_fd(charger, charger->uevent_fd);
-    }
-
-    while ((de = readdir(d)) && max_depth > 0) {
-        DIR *d2;
-
-        LOGV("looking at '%s'\n", de->d_name);
-
-        if ((de->d_type != DT_DIR && !(de->d_type == DT_LNK && follow_links)) ||
-           de->d_name[0] == '.') {
-            LOGV("skipping '%s' type %d (depth=%d follow=%d)\n",
-                 de->d_name, de->d_type, max_depth, follow_links);
-            continue;
-        }
-        LOGV("can descend into '%s'\n", de->d_name);
-
-        fd = openat(dfd, de->d_name, O_RDONLY | O_DIRECTORY);
-        if (fd < 0) {
-            LOGE("cannot openat %d '%s' (%d: %s)\n", dfd, de->d_name,
-                 errno, strerror(errno));
-            continue;
-        }
-
-        d2 = fdopendir(fd);
-        if (d2 == 0)
-            close(fd);
-        else {
-            LOGV("opened '%s'\n", de->d_name);
-            do_coldboot(charger, d2, event, follow_links, max_depth - 1);
-            closedir(d2);
-        }
-    }
-}
-
-static void coldboot(struct charger *charger, const char *path,
-                     const char *event)
-{
-    char str[256];
-
-    LOGV("doing coldboot '%s' in '%s'\n", event, path);
-    DIR *d = opendir(path);
-    if (d) {
-        snprintf(str, sizeof(str), "%s\n", event);
-        do_coldboot(charger, d, str, true, 1);
-        closedir(d);
-    }
-}
-
-static int draw_text(const char *str, int x, int y)
-{
-    int str_len_px = gr_measure(str);
-
-    if (x < 0)
-        x = (gr_fb_width() - str_len_px) / 2;
-    if (y < 0)
-        y = (gr_fb_height() - char_height) / 2;
-    gr_text(x, y, str, 0);
-
-    return y + char_height;
-}
-
-static void android_green(void)
-{
-    gr_color(0xa4, 0xc6, 0x39, 255);
-}
-
-/* returns the last y-offset of where the surface ends */
-static int draw_surface_centered(struct charger *charger, gr_surface surface)
-{
-    int w;
-    int h;
-    int x;
-    int y;
-
-    w = gr_get_width(surface);
-    h = gr_get_height(surface);
-    x = (gr_fb_width() - w) / 2 ;
-    y = (gr_fb_height() - h) / 2 ;
-
-    LOGV("drawing surface %dx%d+%d+%d\n", w, h, x, y);
-    gr_blit(surface, 0, 0, w, h, x, y);
-    return y + h;
-}
-
-static void draw_unknown(struct charger *charger)
-{
-    int y;
-    if (charger->surf_unknown) {
-        draw_surface_centered(charger, charger->surf_unknown);
-    } else {
-        android_green();
-        y = draw_text("Charging!", -1, -1);
-        draw_text("?\?/100", -1, y + 25);
-    }
-}
-
-static void draw_battery(struct charger *charger)
-{
-    struct animation *batt_anim = charger->batt_anim;
-    struct frame *frame = &batt_anim->frames[batt_anim->cur_frame];
-
-    if (batt_anim->num_frames != 0) {
-        draw_surface_centered(charger, frame->surface);
-        LOGV("drawing frame #%d name=%s min_cap=%d time=%d\n",
-             batt_anim->cur_frame, frame->name, frame->min_capacity,
-             frame->disp_time);
-    }
-}
-
-static void redraw_screen(struct charger *charger)
-{
-    struct animation *batt_anim = charger->batt_anim;
-
-    clear_screen();
-
-    /* try to display *something* */
-    if (batt_anim->capacity < 0 || batt_anim->num_frames == 0)
-        draw_unknown(charger);
-    else
-        draw_battery(charger);
-    gr_flip();
-}
-
-static void kick_animation(struct animation *anim)
-{
-    anim->run = true;
-}
-
-static void reset_animation(struct animation *anim)
-{
-    anim->cur_cycle = 0;
-    anim->cur_frame = 0;
-    anim->run = false;
-}
-
-static void update_screen_state(struct charger *charger, int64_t now)
-{
-    struct animation *batt_anim = charger->batt_anim;
-    int cur_frame;
-    int disp_time;
-
-    if (!batt_anim->run || now < charger->next_screen_transition)
-        return;
-
-    /* animation is over, blank screen and leave */
-    if (batt_anim->cur_cycle == batt_anim->num_cycles) {
-        reset_animation(batt_anim);
-        charger->next_screen_transition = -1;
-        gr_fb_blank(true);
-        LOGV("[%lld] animation done\n", now);
-        if (charger->num_supplies_online > 0)
-            request_suspend(true);
-        return;
-    }
-
-    disp_time = batt_anim->frames[batt_anim->cur_frame].disp_time;
-
-    /* animation starting, set up the animation */
-    if (batt_anim->cur_frame == 0) {
-        int batt_cap;
-        int ret;
-
-        LOGV("[%lld] animation starting\n", now);
-        batt_cap = get_battery_capacity(charger);
-        if (batt_cap >= 0 && batt_anim->num_frames != 0) {
-            int i;
-
-            /* find first frame given current capacity */
-            for (i = 1; i < batt_anim->num_frames; i++) {
-                if (batt_cap < batt_anim->frames[i].min_capacity)
-                    break;
-            }
-            batt_anim->cur_frame = i - 1;
-
-            /* show the first frame for twice as long */
-            disp_time = batt_anim->frames[batt_anim->cur_frame].disp_time * 2;
-        }
-
-        batt_anim->capacity = batt_cap;
-    }
-
-    /* unblank the screen  on first cycle */
-    if (batt_anim->cur_cycle == 0)
-        gr_fb_blank(false);
-
-    /* draw the new frame (@ cur_frame) */
-    redraw_screen(charger);
-
-    /* if we don't have anim frames, we only have one image, so just bump
-     * the cycle counter and exit
-     */
-    if (batt_anim->num_frames == 0 || batt_anim->capacity < 0) {
-        LOGV("[%lld] animation missing or unknown battery status\n", now);
-        charger->next_screen_transition = now + BATTERY_UNKNOWN_TIME;
-        batt_anim->cur_cycle++;
-        return;
-    }
-
-    /* schedule next screen transition */
-    charger->next_screen_transition = now + disp_time;
-
-    /* advance frame cntr to the next valid frame
-     * if necessary, advance cycle cntr, and reset frame cntr
-     */
-    batt_anim->cur_frame++;
-
-    /* if the frame is used for level-only, that is only show it when it's
-     * the current level, skip it during the animation.
-     */
-    while (batt_anim->cur_frame < batt_anim->num_frames &&
-           batt_anim->frames[batt_anim->cur_frame].level_only)
-        batt_anim->cur_frame++;
-    if (batt_anim->cur_frame >= batt_anim->num_frames) {
-        batt_anim->cur_cycle++;
-        batt_anim->cur_frame = 0;
-
-        /* don't reset the cycle counter, since we use that as a signal
-         * in a test above to check if animation is over
-         */
-    }
-}
-
-static int set_key_callback(int code, int value, void *data)
-{
-    struct charger *charger = data;
-    int64_t now = curr_time_ms();
-    int down = !!value;
-
-    if (code > KEY_MAX)
-        return -1;
-
-    /* ignore events that don't modify our state */
-    if (charger->keys[code].down == down)
-        return 0;
-
-    /* only record the down even timestamp, as the amount
-     * of time the key spent not being pressed is not useful */
-    if (down)
-        charger->keys[code].timestamp = now;
-    charger->keys[code].down = down;
-    charger->keys[code].pending = true;
-    if (down) {
-        LOGV("[%lld] key[%d] down\n", now, code);
-    } else {
-        int64_t duration = now - charger->keys[code].timestamp;
-        int64_t secs = duration / 1000;
-        int64_t msecs = duration - secs * 1000;
-        LOGV("[%lld] key[%d] up (was down for %lld.%lldsec)\n", now,
-            code, secs, msecs);
-    }
-
-    return 0;
-}
-
-static void update_input_state(struct charger *charger,
-                               struct input_event *ev)
-{
-    if (ev->type != EV_KEY)
-        return;
-    set_key_callback(ev->code, ev->value, charger);
-}
-
-static void set_next_key_check(struct charger *charger,
-                               struct key_state *key,
-                               int64_t timeout)
-{
-    int64_t then = key->timestamp + timeout;
-
-    if (charger->next_key_check == -1 || then < charger->next_key_check)
-        charger->next_key_check = then;
-}
-
-static void process_key(struct charger *charger, int code, int64_t now)
-{
-    struct key_state *key = &charger->keys[code];
-    int64_t next_key_check;
-
-    if (code == KEY_POWER) {
-        if (key->down) {
-            int64_t reboot_timeout = key->timestamp + POWER_ON_KEY_TIME;
-            if (now >= reboot_timeout) {
-                LOGI("[%lld] rebooting\n", now);
-                android_reboot(ANDROID_RB_RESTART, 0, 0);
-            } else {
-                /* if the key is pressed but timeout hasn't expired,
-                 * make sure we wake up at the right-ish time to check
-                 */
-                set_next_key_check(charger, key, POWER_ON_KEY_TIME);
-            }
-        } else {
-            /* if the power key got released, force screen state cycle */
-            if (key->pending) {
-                request_suspend(false);
-                kick_animation(charger->batt_anim);
-            }
-        }
-    }
-
-    key->pending = false;
-}
-
-static void handle_input_state(struct charger *charger, int64_t now)
-{
-    process_key(charger, KEY_POWER, now);
-
-    if (charger->next_key_check != -1 && now > charger->next_key_check)
-        charger->next_key_check = -1;
-}
-
-static void handle_power_supply_state(struct charger *charger, int64_t now)
-{
-    if (charger->num_supplies_online == 0) {
-        request_suspend(false);
-        if (charger->next_pwr_check == -1) {
-            charger->next_pwr_check = now + UNPLUGGED_SHUTDOWN_TIME;
-            LOGI("[%lld] device unplugged: shutting down in %lld (@ %lld)\n",
-                 now, UNPLUGGED_SHUTDOWN_TIME, charger->next_pwr_check);
-        } else if (now >= charger->next_pwr_check) {
-            LOGI("[%lld] shutting down\n", now);
-            android_reboot(ANDROID_RB_POWEROFF, 0, 0);
-        } else {
-            /* otherwise we already have a shutdown timer scheduled */
-        }
-    } else {
-        /* online supply present, reset shutdown timer if set */
-        if (charger->next_pwr_check != -1) {
-            LOGI("[%lld] device plugged in: shutdown cancelled\n", now);
-            kick_animation(charger->batt_anim);
-        }
-        charger->next_pwr_check = -1;
-    }
-}
-
-static void wait_next_event(struct charger *charger, int64_t now)
-{
-    int64_t next_event = INT64_MAX;
-    int64_t timeout;
-    struct input_event ev;
-    int ret;
-
-    LOGV("[%lld] next screen: %lld next key: %lld next pwr: %lld\n", now,
-         charger->next_screen_transition, charger->next_key_check,
-         charger->next_pwr_check);
-
-    if (charger->next_screen_transition != -1)
-        next_event = charger->next_screen_transition;
-    if (charger->next_key_check != -1 && charger->next_key_check < next_event)
-        next_event = charger->next_key_check;
-    if (charger->next_pwr_check != -1 && charger->next_pwr_check < next_event)
-        next_event = charger->next_pwr_check;
-
-    if (next_event != -1 && next_event != INT64_MAX)
-        timeout = max(0, next_event - now);
-    else
-        timeout = -1;
-    LOGV("[%lld] blocking (%lld)\n", now, timeout);
-    ret = ev_wait((int)timeout);
-    if (!ret)
-        ev_dispatch();
-}
-
-static int input_callback(int fd, short revents, void *data)
-{
-    struct charger *charger = data;
-    struct input_event ev;
-    int ret;
-
-    ret = ev_get_input(fd, revents, &ev);
-    if (ret)
-        return -1;
-    update_input_state(charger, &ev);
-    return 0;
-}
-
-static void event_loop(struct charger *charger)
-{
-    int ret;
-
-    while (true) {
-        int64_t now = curr_time_ms();
-
-        LOGV("[%lld] event_loop()\n", now);
-        handle_input_state(charger, now);
-        handle_power_supply_state(charger, now);
-
-        /* do screen update last in case any of the above want to start
-         * screen transitions (animations, etc)
-         */
-        update_screen_state(charger, now);
-
-        wait_next_event(charger, now);
-    }
-}
-
-int main(int argc, char **argv)
-{
-    int ret;
-    struct charger *charger = &charger_state;
-    int64_t now = curr_time_ms() - 1;
-    int fd;
-    int i;
-
-    list_init(&charger->supplies);
-
-    klog_init();
-    klog_set_level(CHARGER_KLOG_LEVEL);
-
-    dump_last_kmsg();
-
-    LOGI("--------------- STARTING CHARGER MODE ---------------\n");
-
-    gr_init();
-    gr_font_size(&char_width, &char_height);
-
-    ev_init(input_callback, charger);
-
-    fd = uevent_open_socket(64*1024, true);
-    if (fd >= 0) {
-        fcntl(fd, F_SETFL, O_NONBLOCK);
-        ev_add_fd(fd, uevent_callback, charger);
-    }
-    charger->uevent_fd = fd;
-    coldboot(charger, "/sys/class/power_supply", "add");
-
-    ret = res_create_surface("charger/battery_fail", &charger->surf_unknown);
-    if (ret < 0) {
-        LOGE("Cannot load image\n");
-        charger->surf_unknown = NULL;
-    }
-
-    for (i = 0; i < charger->batt_anim->num_frames; i++) {
-        struct frame *frame = &charger->batt_anim->frames[i];
-
-        ret = res_create_surface(frame->name, &frame->surface);
-        if (ret < 0) {
-            LOGE("Cannot load image %s\n", frame->name);
-            /* TODO: free the already allocated surfaces... */
-            charger->batt_anim->num_frames = 0;
-            charger->batt_anim->num_cycles = 1;
-            break;
-        }
-    }
-
-    ev_sync_key_state(set_key_callback, charger);
-
-#ifndef CHARGER_DISABLE_INIT_BLANK
-    gr_fb_blank(true);
-#endif
-
-    charger->next_screen_transition = now - 1;
-    charger->next_key_check = -1;
-    charger->next_pwr_check = -1;
-    reset_animation(charger->batt_anim);
-    kick_animation(charger->batt_anim);
-
-    event_loop(charger);
-
-    return 0;
-}
diff --git a/debuggerd/tombstone.c b/debuggerd/tombstone.c
index aa63547..2379bd2 100644
--- a/debuggerd/tombstone.c
+++ b/debuggerd/tombstone.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012 The Android Open Source Project
+ * Copyright (C) 2012-2013 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.
@@ -29,6 +29,7 @@
 
 #include <private/android_filesystem_config.h>
 
+#include <log/log.h>
 #include <log/logger.h>
 #include <cutils/properties.h>
 
@@ -468,43 +469,38 @@
  * Reads the contents of the specified log device, filters out the entries
  * that don't match the specified pid, and writes them to the tombstone file.
  *
- * If "tailOnly" is set, we only print the last few lines.
+ * If "tail" is set, we only print the last few lines.
  */
 static void dump_log_file(log_t* log, pid_t pid, const char* filename,
-    bool tailOnly)
+    unsigned int tail)
 {
     bool first = true;
+    struct logger_list *logger_list;
 
-    /* circular buffer, for "tailOnly" mode */
-    const int kShortLogMaxLines = 5;
-    const int kShortLogLineLen = 256;
-    char shortLog[kShortLogMaxLines][kShortLogLineLen];
-    int shortLogCount = 0;
-    int shortLogNext = 0;
+    logger_list = android_logger_list_open(
+        android_name_to_log_id(filename), O_RDONLY | O_NONBLOCK, tail, pid);
 
-    int logfd = open(filename, O_RDONLY | O_NONBLOCK);
-    if (logfd < 0) {
+    if (!logger_list) {
         XLOG("Unable to open %s: %s\n", filename, strerror(errno));
         return;
     }
 
-    union {
-        unsigned char buf[LOGGER_ENTRY_MAX_LEN + 1];
-        struct logger_entry entry;
-    } log_entry;
+    struct log_msg log_entry;
 
     while (true) {
-        ssize_t actual = read(logfd, log_entry.buf, LOGGER_ENTRY_MAX_LEN);
+        ssize_t actual = android_logger_list_read(logger_list, &log_entry);
+        struct logger_entry* entry;
+
         if (actual < 0) {
-            if (errno == EINTR) {
+            if (actual == -EINTR) {
                 /* interrupted by signal, retry */
                 continue;
-            } else if (errno == EAGAIN) {
+            } else if (actual == -EAGAIN) {
                 /* non-blocking EOF; we're done */
                 break;
             } else {
                 _LOG(log, 0, "Error while reading log: %s\n",
-                    strerror(errno));
+                    strerror(-actual));
                 break;
             }
         } else if (actual == 0) {
@@ -520,16 +516,11 @@
          * the tombstone file.
          */
 
-        struct logger_entry* entry = &log_entry.entry;
-
-        if (entry->pid != (int32_t) pid) {
-            /* wrong pid, ignore */
-            continue;
-        }
+        entry = &log_entry.entry_v1;
 
         if (first) {
             _LOG(log, 0, "--------- %slog %s\n",
-                tailOnly ? "tail end of " : "", filename);
+                tail ? "tail end of " : "", filename);
             first = false;
         }
 
@@ -543,9 +534,14 @@
          * on a separate line, prefixed with the header, like logcat does.
          */
         static const char* kPrioChars = "!.VDIWEFS";
-        unsigned char prio = entry->msg[0];
-        char* tag = entry->msg + 1;
-        char* msg = tag + strlen(tag) + 1;
+        unsigned hdr_size = log_entry.entry.hdr_size;
+        if (!hdr_size) {
+            hdr_size = sizeof(log_entry.entry_v1);
+        }
+        char* msg = (char *)log_entry.buf + hdr_size;
+        unsigned char prio = msg[0];
+        char* tag = msg + 1;
+        msg = tag + strlen(tag) + 1;
 
         /* consume any trailing newlines */
         char* eatnl = msg + strlen(msg) - 1;
@@ -562,50 +558,22 @@
         ptm = localtime_r(&sec, &tmBuf);
         strftime(timeBuf, sizeof(timeBuf), "%m-%d %H:%M:%S", ptm);
 
-        if (tailOnly) {
-            snprintf(shortLog[shortLogNext], kShortLogLineLen,
-                "%s.%03d %5d %5d %c %-8s: %s",
-                timeBuf, entry->nsec / 1000000, entry->pid, entry->tid,
-                prioChar, tag, msg);
-            shortLogNext = (shortLogNext + 1) % kShortLogMaxLines;
-            shortLogCount++;
-        } else {
-            _LOG(log, 0, "%s.%03d %5d %5d %c %-8s: %s\n",
-                timeBuf, entry->nsec / 1000000, entry->pid, entry->tid,
-                prioChar, tag, msg);
-        }
+        _LOG(log, 0, "%s.%03d %5d %5d %c %-8s: %s\n",
+             timeBuf, entry->nsec / 1000000, entry->pid, entry->tid,
+             prioChar, tag, msg);
     }
 
-    if (tailOnly) {
-        int i;
-
-        /*
-         * If we filled the buffer, we want to start at "next", which has
-         * the oldest entry.  If we didn't, we want to start at zero.
-         */
-        if (shortLogCount < kShortLogMaxLines) {
-            shortLogNext = 0;
-        } else {
-            shortLogCount = kShortLogMaxLines;  /* cap at window size */
-        }
-
-        for (i = 0; i < shortLogCount; i++) {
-            _LOG(log, 0, "%s\n", shortLog[shortLogNext]);
-            shortLogNext = (shortLogNext + 1) % kShortLogMaxLines;
-        }
-    }
-
-    close(logfd);
+    android_logger_list_free(logger_list);
 }
 
 /*
  * Dumps the logs generated by the specified pid to the tombstone, from both
  * "system" and "main" log devices.  Ideally we'd interleave the output.
  */
-static void dump_logs(log_t* log, pid_t pid, bool tailOnly)
+static void dump_logs(log_t* log, pid_t pid, unsigned tail)
 {
-    dump_log_file(log, pid, "/dev/log/system", tailOnly);
-    dump_log_file(log, pid, "/dev/log/main", tailOnly);
+    dump_log_file(log, pid, "system", tail);
+    dump_log_file(log, pid, "main", tail);
 }
 
 static void dump_abort_message(const backtrace_context_t* context, log_t* log, uintptr_t address) {
@@ -683,7 +651,7 @@
     }
 
     if (want_logs) {
-        dump_logs(log, pid, true);
+        dump_logs(log, pid, 5);
     }
 
     bool detach_failed = false;
@@ -692,7 +660,7 @@
     }
 
     if (want_logs) {
-        dump_logs(log, pid, false);
+        dump_logs(log, pid, 0);
     }
 
     /* send EOD to the Activity Manager, then wait for its ack to avoid racing ahead
diff --git a/healthd/Android.mk b/healthd/Android.mk
index 473d375..5cd5ce1 100644
--- a/healthd/Android.mk
+++ b/healthd/Android.mk
@@ -13,6 +13,8 @@
 
 LOCAL_SRC_FILES := \
 	healthd.cpp \
+	healthd_mode_android.cpp \
+	healthd_mode_charger.cpp \
 	BatteryMonitor.cpp \
 	BatteryPropertiesRegistrar.cpp
 
@@ -22,9 +24,57 @@
 LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT_SBIN)
 LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_SBIN_UNSTRIPPED)
 
-LOCAL_STATIC_LIBRARIES :=  libbatteryservice libbinder libz libutils libstdc++ libcutils liblog libm libc
+LOCAL_CFLAGS := -D__STDC_LIMIT_MACROS
+
+ifeq ($(strip $(BOARD_CHARGER_DISABLE_INIT_BLANK)),true)
+LOCAL_CFLAGS += -DCHARGER_DISABLE_INIT_BLANK
+endif
+
+ifeq ($(strip $(BOARD_CHARGER_ENABLE_SUSPEND)),true)
+LOCAL_CFLAGS += -DCHARGER_ENABLE_SUSPEND
+endif
+
+LOCAL_C_INCLUDES := bootable/recovery
+
+LOCAL_STATIC_LIBRARIES := libbatteryservice libbinder libminui libpixelflinger_static libpng libz libutils libstdc++ libcutils liblog libm libc
+
+ifeq ($(strip $(BOARD_CHARGER_ENABLE_SUSPEND)),true)
+LOCAL_STATIC_LIBRARIES += libsuspend
+endif
+
 LOCAL_HAL_STATIC_LIBRARIES := libhealthd
 
+# Symlink /charger to /sbin/healthd
+LOCAL_POST_INSTALL_CMD := $(hide) mkdir -p $(TARGET_ROOT_OUT) \
+    && ln -sf /sbin/healthd $(TARGET_ROOT_OUT)/charger
+
 include $(BUILD_EXECUTABLE)
 
+
+define _add-charger-image
+include $$(CLEAR_VARS)
+LOCAL_MODULE := system_core_charger_$(notdir $(1))
+LOCAL_MODULE_STEM := $(notdir $(1))
+_img_modules += $$(LOCAL_MODULE)
+LOCAL_SRC_FILES := $1
+LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $$(TARGET_ROOT_OUT)/res/images/charger
+include $$(BUILD_PREBUILT)
+endef
+
+_img_modules :=
+_images :=
+$(foreach _img, $(call find-subdir-subdir-files, "images", "*.png"), \
+  $(eval $(call _add-charger-image,$(_img))))
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := charger_res_images
+LOCAL_MODULE_TAGS := optional
+LOCAL_REQUIRED_MODULES := $(_img_modules)
+include $(BUILD_PHONY_PACKAGE)
+
+_add-charger-image :=
+_img_modules :=
+
 endif
diff --git a/healthd/BatteryMonitor.cpp b/healthd/BatteryMonitor.cpp
index 688c7ff..3e6a4b1 100644
--- a/healthd/BatteryMonitor.cpp
+++ b/healthd/BatteryMonitor.cpp
@@ -18,7 +18,6 @@
 
 #include "healthd.h"
 #include "BatteryMonitor.h"
-#include "BatteryPropertiesRegistrar.h"
 
 #include <dirent.h>
 #include <errno.h>
@@ -28,6 +27,7 @@
 #include <unistd.h>
 #include <batteryservice/BatteryService.h>
 #include <cutils/klog.h>
+#include <utils/Errors.h>
 #include <utils/String8.h>
 #include <utils/Vector.h>
 
@@ -170,7 +170,6 @@
 }
 
 bool BatteryMonitor::update(void) {
-    struct BatteryProperties props;
     bool logthis;
 
     props.chargerAcOnline = false;
@@ -178,23 +177,15 @@
     props.chargerWirelessOnline = false;
     props.batteryStatus = BATTERY_STATUS_UNKNOWN;
     props.batteryHealth = BATTERY_HEALTH_UNKNOWN;
-    props.batteryCurrentNow = INT_MIN;
-    props.batteryChargeCounter = INT_MIN;
 
     if (!mHealthdConfig->batteryPresentPath.isEmpty())
         props.batteryPresent = getBooleanField(mHealthdConfig->batteryPresentPath);
     else
-        props.batteryPresent = true;
+        props.batteryPresent = mBatteryDevicePresent;
 
     props.batteryLevel = getIntField(mHealthdConfig->batteryCapacityPath);
     props.batteryVoltage = getIntField(mHealthdConfig->batteryVoltagePath) / 1000;
 
-    if (!mHealthdConfig->batteryCurrentNowPath.isEmpty())
-        props.batteryCurrentNow = getIntField(mHealthdConfig->batteryCurrentNowPath);
-
-    if (!mHealthdConfig->batteryChargeCounterPath.isEmpty())
-        props.batteryChargeCounter = getIntField(mHealthdConfig->batteryChargeCounterPath);
-
     props.batteryTemperature = getIntField(mHealthdConfig->batteryTemperaturePath);
 
     const int SIZE = 128;
@@ -244,7 +235,9 @@
 
     if (logthis) {
         char dmesgline[256];
-        snprintf(dmesgline, sizeof(dmesgline),
+
+        if (props.batteryPresent) {
+            snprintf(dmesgline, sizeof(dmesgline),
                  "battery l=%d v=%d t=%s%d.%d h=%d st=%d",
                  props.batteryLevel, props.batteryVoltage,
                  props.batteryTemperature < 0 ? "-" : "",
@@ -252,11 +245,16 @@
                  abs(props.batteryTemperature % 10), props.batteryHealth,
                  props.batteryStatus);
 
-        if (!mHealthdConfig->batteryCurrentNowPath.isEmpty()) {
-            char b[20];
+            if (!mHealthdConfig->batteryCurrentNowPath.isEmpty()) {
+                int c = getIntField(mHealthdConfig->batteryCurrentNowPath);
+                char b[20];
 
-            snprintf(b, sizeof(b), " c=%d", props.batteryCurrentNow / 1000);
-            strlcat(dmesgline, b, sizeof(dmesgline));
+                snprintf(b, sizeof(b), " c=%d", c / 1000);
+                strlcat(dmesgline, b, sizeof(dmesgline));
+            }
+        } else {
+            snprintf(dmesgline, sizeof(dmesgline),
+                 "battery none");
         }
 
         KLOG_INFO(LOG_TAG, "%s chg=%s%s%s\n", dmesgline,
@@ -265,14 +263,91 @@
                   props.chargerWirelessOnline ? "w" : "");
     }
 
-    if (mBatteryPropertiesRegistrar != NULL)
-        mBatteryPropertiesRegistrar->notifyListeners(props);
-
+    healthd_mode_ops->battery_update(&props);
     return props.chargerAcOnline | props.chargerUsbOnline |
             props.chargerWirelessOnline;
 }
 
-void BatteryMonitor::init(struct healthd_config *hc, bool nosvcmgr) {
+status_t BatteryMonitor::getProperty(int id, struct BatteryProperty *val) {
+    status_t ret = BAD_VALUE;
+
+    switch(id) {
+    case BATTERY_PROP_CHARGE_COUNTER:
+        if (!mHealthdConfig->batteryChargeCounterPath.isEmpty()) {
+            val->valueInt =
+                getIntField(mHealthdConfig->batteryChargeCounterPath);
+            ret = NO_ERROR;
+        } else {
+            ret = NAME_NOT_FOUND;
+        }
+        break;
+
+    case BATTERY_PROP_CURRENT_NOW:
+        if (!mHealthdConfig->batteryCurrentNowPath.isEmpty()) {
+            val->valueInt =
+                getIntField(mHealthdConfig->batteryCurrentNowPath);
+            ret = NO_ERROR;
+        } else {
+            ret = NAME_NOT_FOUND;
+        }
+        break;
+
+    case BATTERY_PROP_CURRENT_AVG:
+        if (!mHealthdConfig->batteryCurrentAvgPath.isEmpty()) {
+            val->valueInt =
+                getIntField(mHealthdConfig->batteryCurrentAvgPath);
+            ret = NO_ERROR;
+        } else {
+            ret = NAME_NOT_FOUND;
+        }
+        break;
+
+    default:
+        break;
+    }
+
+    if (ret != NO_ERROR)
+        val->valueInt = INT_MIN;
+
+    return ret;
+}
+
+void BatteryMonitor::dumpState(int fd) {
+    int v;
+    char vs[128];
+
+    snprintf(vs, sizeof(vs), "ac: %d usb: %d wireless: %d\n",
+             props.chargerAcOnline, props.chargerUsbOnline,
+             props.chargerWirelessOnline);
+    write(fd, vs, strlen(vs));
+    snprintf(vs, sizeof(vs), "status: %d health: %d present: %d\n",
+             props.batteryStatus, props.batteryHealth, props.batteryPresent);
+    write(fd, vs, strlen(vs));
+    snprintf(vs, sizeof(vs), "level: %d voltage: %d temp: %d\n",
+             props.batteryLevel, props.batteryVoltage,
+             props.batteryTemperature);
+    write(fd, vs, strlen(vs));
+
+    if (!mHealthdConfig->batteryCurrentNowPath.isEmpty()) {
+        v = getIntField(mHealthdConfig->batteryCurrentNowPath);
+        snprintf(vs, sizeof(vs), "current now: %d\n", v);
+        write(fd, vs, strlen(vs));
+    }
+
+    if (!mHealthdConfig->batteryCurrentAvgPath.isEmpty()) {
+        v = getIntField(mHealthdConfig->batteryCurrentAvgPath);
+        snprintf(vs, sizeof(vs), "current avg: %d\n", v);
+        write(fd, vs, strlen(vs));
+    }
+
+    if (!mHealthdConfig->batteryChargeCounterPath.isEmpty()) {
+        v = getIntField(mHealthdConfig->batteryChargeCounterPath);
+        snprintf(vs, sizeof(vs), "charge counter: %d\n", v);
+        write(fd, vs, strlen(vs));
+    }
+}
+
+void BatteryMonitor::init(struct healthd_config *hc) {
     String8 path;
 
     mHealthdConfig = hc;
@@ -303,6 +378,8 @@
                 break;
 
             case ANDROID_POWER_SUPPLY_TYPE_BATTERY:
+                mBatteryDevicePresent = true;
+
                 if (mHealthdConfig->batteryStatusPath.isEmpty()) {
                     path.clear();
                     path.appendFormat("%s/%s/status", POWER_SUPPLY_SYSFS_PATH,
@@ -358,6 +435,14 @@
                         mHealthdConfig->batteryCurrentNowPath = path;
                 }
 
+                if (mHealthdConfig->batteryCurrentAvgPath.isEmpty()) {
+                    path.clear();
+                    path.appendFormat("%s/%s/current_avg",
+                                      POWER_SUPPLY_SYSFS_PATH, name);
+                    if (access(path, R_OK) == 0)
+                        mHealthdConfig->batteryCurrentAvgPath = path;
+                }
+
                 if (mHealthdConfig->batteryChargeCounterPath.isEmpty()) {
                     path.clear();
                     path.appendFormat("%s/%s/charge_counter",
@@ -400,24 +485,25 @@
 
     if (!mChargerNames.size())
         KLOG_ERROR(LOG_TAG, "No charger supplies found\n");
-    if (mHealthdConfig->batteryStatusPath.isEmpty())
-        KLOG_WARNING(LOG_TAG, "BatteryStatusPath not found\n");
-    if (mHealthdConfig->batteryHealthPath.isEmpty())
-        KLOG_WARNING(LOG_TAG, "BatteryHealthPath not found\n");
-    if (mHealthdConfig->batteryPresentPath.isEmpty())
-        KLOG_WARNING(LOG_TAG, "BatteryPresentPath not found\n");
-    if (mHealthdConfig->batteryCapacityPath.isEmpty())
-        KLOG_WARNING(LOG_TAG, "BatteryCapacityPath not found\n");
-    if (mHealthdConfig->batteryVoltagePath.isEmpty())
-        KLOG_WARNING(LOG_TAG, "BatteryVoltagePath not found\n");
-    if (mHealthdConfig->batteryTemperaturePath.isEmpty())
-        KLOG_WARNING(LOG_TAG, "BatteryTemperaturePath not found\n");
-    if (mHealthdConfig->batteryTechnologyPath.isEmpty())
-        KLOG_WARNING(LOG_TAG, "BatteryTechnologyPath not found\n");
-
-    if (nosvcmgr == false) {
-            mBatteryPropertiesRegistrar = new BatteryPropertiesRegistrar(this);
-            mBatteryPropertiesRegistrar->publish();
+    if (!mBatteryDevicePresent) {
+        KLOG_INFO(LOG_TAG, "No battery devices found\n");
+        hc->periodic_chores_interval_fast = -1;
+        hc->periodic_chores_interval_slow = -1;
+    } else {
+        if (mHealthdConfig->batteryStatusPath.isEmpty())
+            KLOG_WARNING(LOG_TAG, "BatteryStatusPath not found\n");
+        if (mHealthdConfig->batteryHealthPath.isEmpty())
+            KLOG_WARNING(LOG_TAG, "BatteryHealthPath not found\n");
+        if (mHealthdConfig->batteryPresentPath.isEmpty())
+            KLOG_WARNING(LOG_TAG, "BatteryPresentPath not found\n");
+        if (mHealthdConfig->batteryCapacityPath.isEmpty())
+            KLOG_WARNING(LOG_TAG, "BatteryCapacityPath not found\n");
+        if (mHealthdConfig->batteryVoltagePath.isEmpty())
+            KLOG_WARNING(LOG_TAG, "BatteryVoltagePath not found\n");
+        if (mHealthdConfig->batteryTemperaturePath.isEmpty())
+            KLOG_WARNING(LOG_TAG, "BatteryTemperaturePath not found\n");
+        if (mHealthdConfig->batteryTechnologyPath.isEmpty())
+            KLOG_WARNING(LOG_TAG, "BatteryTechnologyPath not found\n");
     }
 }
 
diff --git a/healthd/BatteryMonitor.h b/healthd/BatteryMonitor.h
index ba291af..4866cc2 100644
--- a/healthd/BatteryMonitor.h
+++ b/healthd/BatteryMonitor.h
@@ -17,17 +17,15 @@
 #ifndef HEALTHD_BATTERYMONITOR_H
 #define HEALTHD_BATTERYMONITOR_H
 
+#include <batteryservice/BatteryService.h>
 #include <binder/IInterface.h>
 #include <utils/String8.h>
 #include <utils/Vector.h>
 
 #include "healthd.h"
-#include "BatteryPropertiesRegistrar.h"
 
 namespace android {
 
-class BatteryPropertiesRegistrar;
-
 class BatteryMonitor {
   public:
 
@@ -39,14 +37,16 @@
         ANDROID_POWER_SUPPLY_TYPE_BATTERY
     };
 
-    void init(struct healthd_config *hc, bool nosvcmgr);
+    void init(struct healthd_config *hc);
     bool update(void);
+    status_t getProperty(int id, struct BatteryProperty *val);
+    void dumpState(int fd);
 
   private:
     struct healthd_config *mHealthdConfig;
     Vector<String8> mChargerNames;
-
-    sp<BatteryPropertiesRegistrar> mBatteryPropertiesRegistrar;
+    bool mBatteryDevicePresent;
+    struct BatteryProperties props;
 
     int getBatteryStatus(const char* status);
     int getBatteryHealth(const char* status);
diff --git a/healthd/BatteryPropertiesRegistrar.cpp b/healthd/BatteryPropertiesRegistrar.cpp
index 6a33ad8..58da4ee 100644
--- a/healthd/BatteryPropertiesRegistrar.cpp
+++ b/healthd/BatteryPropertiesRegistrar.cpp
@@ -18,19 +18,20 @@
 #include <batteryservice/BatteryService.h>
 #include <batteryservice/IBatteryPropertiesListener.h>
 #include <batteryservice/IBatteryPropertiesRegistrar.h>
+#include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
+#include <binder/PermissionCache.h>
+#include <private/android_filesystem_config.h>
 #include <utils/Errors.h>
 #include <utils/Mutex.h>
 #include <utils/String16.h>
 
+#include "healthd.h"
+
 namespace android {
 
-BatteryPropertiesRegistrar::BatteryPropertiesRegistrar(BatteryMonitor* monitor) {
-    mBatteryMonitor = monitor;
-}
-
 void BatteryPropertiesRegistrar::publish() {
-    defaultServiceManager()->addService(String16("batterypropreg"), this);
+    defaultServiceManager()->addService(String16("batteryproperties"), this);
 }
 
 void BatteryPropertiesRegistrar::notifyListeners(struct BatteryProperties props) {
@@ -53,7 +54,7 @@
         mListeners.add(listener);
         listener->asBinder()->linkToDeath(this);
     }
-    mBatteryMonitor->update();
+    healthd_battery_update();
 }
 
 void BatteryPropertiesRegistrar::unregisterListener(const sp<IBatteryPropertiesListener>& listener) {
@@ -67,6 +68,23 @@
     }
 }
 
+status_t BatteryPropertiesRegistrar::getProperty(int id, struct BatteryProperty *val) {
+    return healthd_get_property(id, val);
+}
+
+status_t BatteryPropertiesRegistrar::dump(int fd, const Vector<String16>& args) {
+    IPCThreadState* self = IPCThreadState::self();
+    const int pid = self->getCallingPid();
+    const int uid = self->getCallingUid();
+    if ((uid != AID_SHELL) &&
+        !PermissionCache::checkPermission(
+                String16("android.permission.DUMP"), pid, uid))
+        return PERMISSION_DENIED;
+
+    healthd_dump_battery_state(fd);
+    return OK;
+}
+
 void BatteryPropertiesRegistrar::binderDied(const wp<IBinder>& who) {
     Mutex::Autolock _l(mRegistrationLock);
 
diff --git a/healthd/BatteryPropertiesRegistrar.h b/healthd/BatteryPropertiesRegistrar.h
index 793ddad..8853874 100644
--- a/healthd/BatteryPropertiesRegistrar.h
+++ b/healthd/BatteryPropertiesRegistrar.h
@@ -17,10 +17,9 @@
 #ifndef HEALTHD_BATTERYPROPERTIES_REGISTRAR_H
 #define HEALTHD_BATTERYPROPERTIES_REGISTRAR_H
 
-#include "BatteryMonitor.h"
-
 #include <binder/IBinder.h>
 #include <utils/Mutex.h>
+#include <utils/String16.h>
 #include <utils/Vector.h>
 #include <batteryservice/BatteryService.h>
 #include <batteryservice/IBatteryPropertiesListener.h>
@@ -28,22 +27,20 @@
 
 namespace android {
 
-class BatteryMonitor;
-
 class BatteryPropertiesRegistrar : public BnBatteryPropertiesRegistrar,
                                    public IBinder::DeathRecipient {
 public:
-    BatteryPropertiesRegistrar(BatteryMonitor* monitor);
     void publish();
     void notifyListeners(struct BatteryProperties props);
 
 private:
-    BatteryMonitor* mBatteryMonitor;
     Mutex mRegistrationLock;
     Vector<sp<IBatteryPropertiesListener> > mListeners;
 
     void registerListener(const sp<IBatteryPropertiesListener>& listener);
     void unregisterListener(const sp<IBatteryPropertiesListener>& listener);
+    status_t getProperty(int id, struct BatteryProperty *val);
+    status_t dump(int fd, const Vector<String16>& args);
     void binderDied(const wp<IBinder>& who);
 };
 
diff --git a/healthd/healthd.cpp b/healthd/healthd.cpp
index 9b84c3e..8363c41 100644
--- a/healthd/healthd.cpp
+++ b/healthd/healthd.cpp
@@ -21,16 +21,17 @@
 #include "BatteryMonitor.h"
 
 #include <errno.h>
+#include <libgen.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 #include <batteryservice/BatteryService.h>
-#include <binder/IPCThreadState.h>
-#include <binder/ProcessState.h>
 #include <cutils/klog.h>
 #include <cutils/uevent.h>
 #include <sys/epoll.h>
 #include <sys/timerfd.h>
+#include <utils/Errors.h>
 
 using namespace android;
 
@@ -49,13 +50,17 @@
     .batteryTemperaturePath = String8(String8::kEmptyString),
     .batteryTechnologyPath = String8(String8::kEmptyString),
     .batteryCurrentNowPath = String8(String8::kEmptyString),
+    .batteryCurrentAvgPath = String8(String8::kEmptyString),
     .batteryChargeCounterPath = String8(String8::kEmptyString),
 };
 
+static int eventct;
+static int epollfd;
+
 #define POWER_SUPPLY_SUBSYSTEM "power_supply"
 
-// epoll events: uevent, wakealarm, binder
-#define MAX_EPOLL_EVENTS 3
+// epoll_create() parameter is actually unused
+#define MAX_EPOLL_EVENTS 40
 static int uevent_fd;
 static int wakealarm_fd;
 static int binder_fd;
@@ -67,7 +72,80 @@
 
 static BatteryMonitor* gBatteryMonitor;
 
-static bool nosvcmgr;
+struct healthd_mode_ops *healthd_mode_ops;
+
+// Android mode
+
+extern void healthd_mode_android_init(struct healthd_config *config);
+extern int healthd_mode_android_preparetowait(void);
+extern void healthd_mode_android_battery_update(
+    struct android::BatteryProperties *props);
+
+// Charger mode
+
+extern void healthd_mode_charger_init(struct healthd_config *config);
+extern int healthd_mode_charger_preparetowait(void);
+extern void healthd_mode_charger_heartbeat(void);
+extern void healthd_mode_charger_battery_update(
+    struct android::BatteryProperties *props);
+
+// NOPs for modes that need no special action
+
+static void healthd_mode_nop_init(struct healthd_config *config);
+static int healthd_mode_nop_preparetowait(void);
+static void healthd_mode_nop_heartbeat(void);
+static void healthd_mode_nop_battery_update(
+    struct android::BatteryProperties *props);
+
+static struct healthd_mode_ops android_ops = {
+    .init = healthd_mode_android_init,
+    .preparetowait = healthd_mode_android_preparetowait,
+    .heartbeat = healthd_mode_nop_heartbeat,
+    .battery_update = healthd_mode_android_battery_update,
+};
+
+static struct healthd_mode_ops charger_ops = {
+    .init = healthd_mode_charger_init,
+    .preparetowait = healthd_mode_charger_preparetowait,
+    .heartbeat = healthd_mode_charger_heartbeat,
+    .battery_update = healthd_mode_charger_battery_update,
+};
+
+static struct healthd_mode_ops recovery_ops = {
+    .init = healthd_mode_nop_init,
+    .preparetowait = healthd_mode_nop_preparetowait,
+    .heartbeat = healthd_mode_nop_heartbeat,
+    .battery_update = healthd_mode_nop_battery_update,
+};
+
+static void healthd_mode_nop_init(struct healthd_config *config) {
+}
+
+static int healthd_mode_nop_preparetowait(void) {
+    return -1;
+}
+
+static void healthd_mode_nop_heartbeat(void) {
+}
+
+static void healthd_mode_nop_battery_update(
+    struct android::BatteryProperties *props) {
+}
+
+int healthd_register_event(int fd, void (*handler)(uint32_t)) {
+    struct epoll_event ev;
+
+    ev.events = EPOLLIN | EPOLLWAKEUP;
+    ev.data.ptr = (void *)handler;
+    if (epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev) == -1) {
+        KLOG_ERROR(LOG_TAG,
+                   "epoll_ctl failed; errno=%d\n", errno);
+        return -1;
+    }
+
+    eventct++;
+    return 0;
+}
 
 static void wakealarm_set_interval(int interval) {
     struct itimerspec itval;
@@ -89,7 +167,11 @@
         KLOG_ERROR(LOG_TAG, "wakealarm_set_interval: timerfd_settime failed\n");
 }
 
-static void battery_update(void) {
+status_t healthd_get_property(int id, struct BatteryProperty *val) {
+    return gBatteryMonitor->getProperty(id, val);
+}
+
+void healthd_battery_update(void) {
     // Fast wake interval when on charger (watch for overheat);
     // slow wake interval when on battery (watch for drained battery).
 
@@ -113,21 +195,17 @@
                 -1 : healthd_config.periodic_chores_interval_fast * 1000;
 }
 
-static void periodic_chores() {
-    battery_update();
+void healthd_dump_battery_state(int fd) {
+    gBatteryMonitor->dumpState(fd);
+    fsync(fd);
 }
 
-static void uevent_init(void) {
-    uevent_fd = uevent_open_socket(64*1024, true);
-
-    if (uevent_fd >= 0)
-        fcntl(uevent_fd, F_SETFL, O_NONBLOCK);
-    else
-        KLOG_ERROR(LOG_TAG, "uevent_init: uevent_open_socket failed\n");
+static void periodic_chores() {
+    healthd_battery_update();
 }
 
 #define UEVENT_MSG_LEN 1024
-static void uevent_event(void) {
+static void uevent_event(uint32_t epevents) {
     char msg[UEVENT_MSG_LEN+2];
     char *cp;
     int n;
@@ -144,7 +222,7 @@
 
     while (*cp) {
         if (!strcmp(cp, "SUBSYSTEM=" POWER_SUPPLY_SUBSYSTEM)) {
-            battery_update();
+            healthd_battery_update();
             break;
         }
 
@@ -154,6 +232,31 @@
     }
 }
 
+static void uevent_init(void) {
+    uevent_fd = uevent_open_socket(64*1024, true);
+
+    if (uevent_fd < 0) {
+        KLOG_ERROR(LOG_TAG, "uevent_init: uevent_open_socket failed\n");
+        return;
+    }
+
+    fcntl(uevent_fd, F_SETFL, O_NONBLOCK);
+    if (healthd_register_event(uevent_fd, uevent_event))
+        KLOG_ERROR(LOG_TAG,
+                   "register for uevent events failed\n");
+}
+
+static void wakealarm_event(uint32_t epevents) {
+    unsigned long long wakeups;
+
+    if (read(wakealarm_fd, &wakeups, sizeof(wakeups)) == -1) {
+        KLOG_ERROR(LOG_TAG, "wakealarm_event: read wakealarm fd failed\n");
+        return;
+    }
+
+    periodic_chores();
+}
+
 static void wakealarm_init(void) {
     wakealarm_fd = timerfd_create(CLOCK_BOOTTIME_ALARM, TFD_NONBLOCK);
     if (wakealarm_fd == -1) {
@@ -161,82 +264,24 @@
         return;
     }
 
+    if (healthd_register_event(wakealarm_fd, wakealarm_event))
+        KLOG_ERROR(LOG_TAG,
+                   "Registration of wakealarm event failed\n");
+
     wakealarm_set_interval(healthd_config.periodic_chores_interval_fast);
 }
 
-static void wakealarm_event(void) {
-    unsigned long long wakeups;
-
-    if (read(wakealarm_fd, &wakeups, sizeof(wakeups)) == -1) {
-        KLOG_ERROR(LOG_TAG, "wakealarm_event: read wakealarm_fd failed\n");
-        return;
-    }
-
-    periodic_chores();
-}
-
-static void binder_init(void) {
-    ProcessState::self()->setThreadPoolMaxThreadCount(0);
-    IPCThreadState::self()->disableBackgroundScheduling(true);
-    IPCThreadState::self()->setupPolling(&binder_fd);
-}
-
-static void binder_event(void) {
-    IPCThreadState::self()->handlePolledCommands();
-}
-
 static void healthd_mainloop(void) {
-    struct epoll_event ev;
-    int epollfd;
-    int maxevents = 0;
-
-    epollfd = epoll_create(MAX_EPOLL_EVENTS);
-    if (epollfd == -1) {
-        KLOG_ERROR(LOG_TAG,
-                   "healthd_mainloop: epoll_create failed; errno=%d\n",
-                   errno);
-        return;
-    }
-
-    if (uevent_fd >= 0) {
-        ev.events = EPOLLIN | EPOLLWAKEUP;
-        ev.data.ptr = (void *)uevent_event;
-        if (epoll_ctl(epollfd, EPOLL_CTL_ADD, uevent_fd, &ev) == -1)
-            KLOG_ERROR(LOG_TAG,
-                       "healthd_mainloop: epoll_ctl for uevent_fd failed; errno=%d\n",
-                       errno);
-        else
-            maxevents++;
-    }
-
-    if (wakealarm_fd >= 0) {
-        ev.events = EPOLLIN | EPOLLWAKEUP;
-        ev.data.ptr = (void *)wakealarm_event;
-        if (epoll_ctl(epollfd, EPOLL_CTL_ADD, wakealarm_fd, &ev) == -1)
-            KLOG_ERROR(LOG_TAG,
-                       "healthd_mainloop: epoll_ctl for wakealarm_fd failed; errno=%d\n",
-                       errno);
-        else
-            maxevents++;
-   }
-
-    if (binder_fd >= 0) {
-        ev.events = EPOLLIN | EPOLLWAKEUP;
-        ev.data.ptr= (void *)binder_event;
-        if (epoll_ctl(epollfd, EPOLL_CTL_ADD, binder_fd, &ev) == -1)
-            KLOG_ERROR(LOG_TAG,
-                       "healthd_mainloop: epoll_ctl for binder_fd failed; errno=%d\n",
-                       errno);
-        else
-            maxevents++;
-   }
-
     while (1) {
-        struct epoll_event events[maxevents];
+        struct epoll_event events[eventct];
         int nevents;
+        int timeout = awake_poll_interval;
+        int mode_timeout;
 
-        IPCThreadState::self()->flushCommands();
-        nevents = epoll_wait(epollfd, events, maxevents, awake_poll_interval);
+        mode_timeout = healthd_mode_ops->preparetowait();
+        if (timeout < 0 || (mode_timeout > 0 && mode_timeout < timeout))
+            timeout = mode_timeout;
+        nevents = epoll_wait(epollfd, events, eventct, timeout);
 
         if (nevents == -1) {
             if (errno == EINTR)
@@ -247,39 +292,70 @@
 
         for (int n = 0; n < nevents; ++n) {
             if (events[n].data.ptr)
-                (*(void (*)())events[n].data.ptr)();
+                (*(void (*)(int))events[n].data.ptr)(events[n].events);
         }
 
         if (!nevents)
             periodic_chores();
+
+        healthd_mode_ops->heartbeat();
     }
 
     return;
 }
 
-int main(int argc, char **argv) {
-    int ch;
-
-    klog_set_level(KLOG_LEVEL);
-
-    while ((ch = getopt(argc, argv, "n")) != -1) {
-        switch (ch) {
-        case 'n':
-            nosvcmgr = true;
-            break;
-        case '?':
-        default:
-            KLOG_WARNING(LOG_TAG, "Unrecognized healthd option: %c\n", ch);
-        }
+static int healthd_init() {
+    epollfd = epoll_create(MAX_EPOLL_EVENTS);
+    if (epollfd == -1) {
+        KLOG_ERROR(LOG_TAG,
+                   "epoll_create failed; errno=%d\n",
+                   errno);
+        return -1;
     }
 
+    healthd_mode_ops->init(&healthd_config);
     healthd_board_init(&healthd_config);
     wakealarm_init();
     uevent_init();
-    binder_init();
     gBatteryMonitor = new BatteryMonitor();
-    gBatteryMonitor->init(&healthd_config, nosvcmgr);
+    gBatteryMonitor->init(&healthd_config);
+    return 0;
+}
+
+int main(int argc, char **argv) {
+    int ch;
+    int ret;
+
+    klog_set_level(KLOG_LEVEL);
+    healthd_mode_ops = &android_ops;
+
+    if (!strcmp(basename(argv[0]), "charger")) {
+        healthd_mode_ops = &charger_ops;
+    } else {
+        while ((ch = getopt(argc, argv, "cr")) != -1) {
+            switch (ch) {
+            case 'c':
+                healthd_mode_ops = &charger_ops;
+                break;
+            case 'r':
+                healthd_mode_ops = &recovery_ops;
+                break;
+            case '?':
+            default:
+                KLOG_ERROR(LOG_TAG, "Unrecognized healthd option: %c\n",
+                           optopt);
+                exit(1);
+            }
+        }
+    }
+
+    ret = healthd_init();
+    if (ret) {
+        KLOG_ERROR("Initialization failed, exiting\n");
+        exit(2);
+    }
 
     healthd_mainloop();
-    return 0;
+    KLOG_ERROR("Main loop terminated, exiting\n");
+    return 3;
 }
diff --git a/healthd/healthd.h b/healthd/healthd.h
index 5374fb1..23a54bf 100644
--- a/healthd/healthd.h
+++ b/healthd/healthd.h
@@ -18,6 +18,7 @@
 #define _HEALTHD_H_
 
 #include <batteryservice/BatteryService.h>
+#include <utils/Errors.h>
 #include <utils/String8.h>
 
 // periodic_chores_interval_fast, periodic_chores_interval_slow: intervals at
@@ -61,9 +62,35 @@
     android::String8 batteryTemperaturePath;
     android::String8 batteryTechnologyPath;
     android::String8 batteryCurrentNowPath;
+    android::String8 batteryCurrentAvgPath;
     android::String8 batteryChargeCounterPath;
 };
 
+// Global helper functions
+
+int healthd_register_event(int fd, void (*handler)(uint32_t));
+void healthd_battery_update();
+android::status_t healthd_get_property(int id,
+    struct android::BatteryProperty *val);
+void healthd_dump_battery_state(int fd);
+
+struct healthd_mode_ops {
+    void (*init)(struct healthd_config *config);
+    int (*preparetowait)(void);
+    void (*heartbeat)(void);
+    void (*battery_update)(struct android::BatteryProperties *props);
+};
+
+extern struct healthd_mode_ops *healthd_mode_ops;
+
+// Charger mode
+
+void healthd_mode_charger_init(struct healthd_config *config);
+int healthd_mode_charger_preparetowait(void);
+void healthd_mode_charger_heartbeat(void);
+void healthd_mode_charger_battery_update(
+    struct android::BatteryProperties *props);
+
 // The following are implemented in libhealthd_board to handle board-specific
 // behavior.
 //
diff --git a/healthd/healthd_mode_android.cpp b/healthd/healthd_mode_android.cpp
new file mode 100644
index 0000000..4887c8c
--- /dev/null
+++ b/healthd/healthd_mode_android.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#define LOG_TAG "healthd-android"
+
+#include "healthd.h"
+#include "BatteryPropertiesRegistrar.h"
+
+#include <binder/IPCThreadState.h>
+#include <binder/ProcessState.h>
+#include <cutils/klog.h>
+#include <sys/epoll.h>
+
+using namespace android;
+
+static int gBinderFd;
+static sp<BatteryPropertiesRegistrar> gBatteryPropertiesRegistrar;
+
+void healthd_mode_android_battery_update(
+    struct android::BatteryProperties *props) {
+    if (gBatteryPropertiesRegistrar != NULL)
+        gBatteryPropertiesRegistrar->notifyListeners(*props);
+
+    return;
+}
+
+int healthd_mode_android_preparetowait(void) {
+    IPCThreadState::self()->flushCommands();
+    return -1;
+}
+
+static void binder_event(uint32_t epevents) {
+    IPCThreadState::self()->handlePolledCommands();
+}
+
+void healthd_mode_android_init(struct healthd_config *config) {
+    ProcessState::self()->setThreadPoolMaxThreadCount(0);
+    IPCThreadState::self()->disableBackgroundScheduling(true);
+    IPCThreadState::self()->setupPolling(&gBinderFd);
+
+    if (gBinderFd >= 0) {
+        if (healthd_register_event(gBinderFd, binder_event))
+            KLOG_ERROR(LOG_TAG,
+                       "Register for binder events failed\n");
+    }
+
+    gBatteryPropertiesRegistrar = new BatteryPropertiesRegistrar();
+    gBatteryPropertiesRegistrar->publish();
+}
diff --git a/healthd/healthd_mode_charger.cpp b/healthd/healthd_mode_charger.cpp
new file mode 100644
index 0000000..025d530
--- /dev/null
+++ b/healthd/healthd_mode_charger.cpp
@@ -0,0 +1,684 @@
+/*
+ * Copyright (C) 2011-2013 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 <linux/input.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <sys/socket.h>
+#include <linux/netlink.h>
+
+#include <batteryservice/BatteryService.h>
+#include <cutils/android_reboot.h>
+#include <cutils/klog.h>
+#include <cutils/misc.h>
+
+#ifdef CHARGER_ENABLE_SUSPEND
+#include <suspend/autosuspend.h>
+#endif
+
+#include "minui/minui.h"
+
+#include "healthd.h"
+
+#ifndef max
+#define max(a,b) ((a) > (b) ? (a) : (b))
+#endif
+
+#ifndef min
+#define min(a,b) ((a) < (b) ? (a) : (b))
+#endif
+
+#define ARRAY_SIZE(x)           (sizeof(x)/sizeof(x[0]))
+
+#define MSEC_PER_SEC            (1000LL)
+#define NSEC_PER_MSEC           (1000000LL)
+
+#define BATTERY_UNKNOWN_TIME    (2 * MSEC_PER_SEC)
+#define POWER_ON_KEY_TIME       (2 * MSEC_PER_SEC)
+#define UNPLUGGED_SHUTDOWN_TIME (10 * MSEC_PER_SEC)
+
+#define BATTERY_FULL_THRESH     95
+
+#define LAST_KMSG_PATH          "/proc/last_kmsg"
+#define LAST_KMSG_PSTORE_PATH   "/sys/fs/pstore/console-ramoops"
+#define LAST_KMSG_MAX_SZ        (32 * 1024)
+
+#define LOGE(x...) do { KLOG_ERROR("charger", x); } while (0)
+#define LOGI(x...) do { KLOG_INFO("charger", x); } while (0)
+#define LOGV(x...) do { KLOG_DEBUG("charger", x); } while (0)
+
+struct key_state {
+    bool pending;
+    bool down;
+    int64_t timestamp;
+};
+
+struct frame {
+    const char *name;
+    int disp_time;
+    int min_capacity;
+    bool level_only;
+
+    gr_surface surface;
+};
+
+struct animation {
+    bool run;
+
+    struct frame *frames;
+    int cur_frame;
+    int num_frames;
+
+    int cur_cycle;
+    int num_cycles;
+
+    /* current capacity being animated */
+    int capacity;
+};
+
+struct charger {
+    bool have_battery_state;
+    bool charger_connected;
+    int capacity;
+    int64_t next_screen_transition;
+    int64_t next_key_check;
+    int64_t next_pwr_check;
+
+    struct key_state keys[KEY_MAX + 1];
+
+    struct animation *batt_anim;
+    gr_surface surf_unknown;
+};
+
+static struct frame batt_anim_frames[] = {
+    {
+        .name = "charger/battery_0",
+        .disp_time = 750,
+        .min_capacity = 0,
+        .level_only = false,
+        .surface = NULL,
+    },
+    {
+        .name = "charger/battery_1",
+        .disp_time = 750,
+        .min_capacity = 20,
+        .level_only = false,
+        .surface = NULL,
+    },
+    {
+        .name = "charger/battery_2",
+        .disp_time = 750,
+        .min_capacity = 40,
+        .level_only = false,
+        .surface = NULL,
+    },
+    {
+        .name = "charger/battery_3",
+        .disp_time = 750,
+        .min_capacity = 60,
+        .level_only = false,
+        .surface = NULL,
+    },
+    {
+        .name = "charger/battery_4",
+        .disp_time = 750,
+        .min_capacity = 80,
+        .level_only = true,
+        .surface = NULL,
+    },
+    {
+        .name = "charger/battery_5",
+        .disp_time = 750,
+        .min_capacity = BATTERY_FULL_THRESH,
+        .level_only = false,
+        .surface = NULL,
+    },
+};
+
+static struct animation battery_animation = {
+    .run = false,
+    .frames = batt_anim_frames,
+    .cur_frame = 0,
+    .num_frames = ARRAY_SIZE(batt_anim_frames),
+    .cur_cycle = 0,
+    .num_cycles = 3,
+    .capacity = 0,
+};
+
+static struct charger charger_state;
+
+static int char_width;
+static int char_height;
+
+/* current time in milliseconds */
+static int64_t curr_time_ms(void)
+{
+    struct timespec tm;
+    clock_gettime(CLOCK_MONOTONIC, &tm);
+    return tm.tv_sec * MSEC_PER_SEC + (tm.tv_nsec / NSEC_PER_MSEC);
+}
+
+static void clear_screen(void)
+{
+    gr_color(0, 0, 0, 255);
+    gr_fill(0, 0, gr_fb_width(), gr_fb_height());
+};
+
+#define MAX_KLOG_WRITE_BUF_SZ 256
+
+static void dump_last_kmsg(void)
+{
+    char *buf;
+    char *ptr;
+    unsigned sz = 0;
+    int len;
+
+    LOGI("\n");
+    LOGI("*************** LAST KMSG ***************\n");
+    LOGI("\n");
+    buf = (char *)load_file(LAST_KMSG_PSTORE_PATH, &sz);
+
+    if (!buf || !sz) {
+        buf = (char *)load_file(LAST_KMSG_PATH, &sz);
+        if (!buf || !sz) {
+            LOGI("last_kmsg not found. Cold reset?\n");
+            goto out;
+        }
+    }
+
+    len = min(sz, LAST_KMSG_MAX_SZ);
+    ptr = buf + (sz - len);
+
+    while (len > 0) {
+        int cnt = min(len, MAX_KLOG_WRITE_BUF_SZ);
+        char yoink;
+        char *nl;
+
+        nl = (char *)memrchr(ptr, '\n', cnt - 1);
+        if (nl)
+            cnt = nl - ptr + 1;
+
+        yoink = ptr[cnt];
+        ptr[cnt] = '\0';
+        klog_write(6, "<6>%s", ptr);
+        ptr[cnt] = yoink;
+
+        len -= cnt;
+        ptr += cnt;
+    }
+
+    free(buf);
+
+out:
+    LOGI("\n");
+    LOGI("************* END LAST KMSG *************\n");
+    LOGI("\n");
+}
+
+static int get_battery_capacity()
+{
+    return charger_state.capacity;
+}
+
+#ifdef CHARGER_ENABLE_SUSPEND
+static int request_suspend(bool enable)
+{
+    if (enable)
+        return autosuspend_enable();
+    else
+        return autosuspend_disable();
+}
+#else
+static int request_suspend(bool enable)
+{
+    return 0;
+}
+#endif
+
+static int draw_text(const char *str, int x, int y)
+{
+    int str_len_px = gr_measure(str);
+
+    if (x < 0)
+        x = (gr_fb_width() - str_len_px) / 2;
+    if (y < 0)
+        y = (gr_fb_height() - char_height) / 2;
+    gr_text(x, y, str, 0);
+
+    return y + char_height;
+}
+
+static void android_green(void)
+{
+    gr_color(0xa4, 0xc6, 0x39, 255);
+}
+
+/* returns the last y-offset of where the surface ends */
+static int draw_surface_centered(struct charger *charger, gr_surface surface)
+{
+    int w;
+    int h;
+    int x;
+    int y;
+
+    w = gr_get_width(surface);
+    h = gr_get_height(surface);
+    x = (gr_fb_width() - w) / 2 ;
+    y = (gr_fb_height() - h) / 2 ;
+
+    LOGV("drawing surface %dx%d+%d+%d\n", w, h, x, y);
+    gr_blit(surface, 0, 0, w, h, x, y);
+    return y + h;
+}
+
+static void draw_unknown(struct charger *charger)
+{
+    int y;
+    if (charger->surf_unknown) {
+        draw_surface_centered(charger, charger->surf_unknown);
+    } else {
+        android_green();
+        y = draw_text("Charging!", -1, -1);
+        draw_text("?\?/100", -1, y + 25);
+    }
+}
+
+static void draw_battery(struct charger *charger)
+{
+    struct animation *batt_anim = charger->batt_anim;
+    struct frame *frame = &batt_anim->frames[batt_anim->cur_frame];
+
+    if (batt_anim->num_frames != 0) {
+        draw_surface_centered(charger, frame->surface);
+        LOGV("drawing frame #%d name=%s min_cap=%d time=%d\n",
+             batt_anim->cur_frame, frame->name, frame->min_capacity,
+             frame->disp_time);
+    }
+}
+
+static void redraw_screen(struct charger *charger)
+{
+    struct animation *batt_anim = charger->batt_anim;
+
+    clear_screen();
+
+    /* try to display *something* */
+    if (batt_anim->capacity < 0 || batt_anim->num_frames == 0)
+        draw_unknown(charger);
+    else
+        draw_battery(charger);
+    gr_flip();
+}
+
+static void kick_animation(struct animation *anim)
+{
+    anim->run = true;
+}
+
+static void reset_animation(struct animation *anim)
+{
+    anim->cur_cycle = 0;
+    anim->cur_frame = 0;
+    anim->run = false;
+}
+
+static void update_screen_state(struct charger *charger, int64_t now)
+{
+    struct animation *batt_anim = charger->batt_anim;
+    int cur_frame;
+    int disp_time;
+
+    if (!batt_anim->run || now < charger->next_screen_transition)
+        return;
+
+    /* animation is over, blank screen and leave */
+    if (batt_anim->cur_cycle == batt_anim->num_cycles) {
+        reset_animation(batt_anim);
+        charger->next_screen_transition = -1;
+        gr_fb_blank(true);
+        LOGV("[%lld] animation done\n", now);
+        if (!charger->charger_connected)
+            request_suspend(true);
+        return;
+    }
+
+    disp_time = batt_anim->frames[batt_anim->cur_frame].disp_time;
+
+    /* animation starting, set up the animation */
+    if (batt_anim->cur_frame == 0) {
+        int batt_cap;
+        int ret;
+
+        LOGV("[%lld] animation starting\n", now);
+        batt_cap = get_battery_capacity();
+        if (batt_cap >= 0 && batt_anim->num_frames != 0) {
+            int i;
+
+            /* find first frame given current capacity */
+            for (i = 1; i < batt_anim->num_frames; i++) {
+                if (batt_cap < batt_anim->frames[i].min_capacity)
+                    break;
+            }
+            batt_anim->cur_frame = i - 1;
+
+            /* show the first frame for twice as long */
+            disp_time = batt_anim->frames[batt_anim->cur_frame].disp_time * 2;
+        }
+
+        batt_anim->capacity = batt_cap;
+    }
+
+    /* unblank the screen  on first cycle */
+    if (batt_anim->cur_cycle == 0)
+        gr_fb_blank(false);
+
+    /* draw the new frame (@ cur_frame) */
+    redraw_screen(charger);
+
+    /* if we don't have anim frames, we only have one image, so just bump
+     * the cycle counter and exit
+     */
+    if (batt_anim->num_frames == 0 || batt_anim->capacity < 0) {
+        LOGV("[%lld] animation missing or unknown battery status\n", now);
+        charger->next_screen_transition = now + BATTERY_UNKNOWN_TIME;
+        batt_anim->cur_cycle++;
+        return;
+    }
+
+    /* schedule next screen transition */
+    charger->next_screen_transition = now + disp_time;
+
+    /* advance frame cntr to the next valid frame
+     * if necessary, advance cycle cntr, and reset frame cntr
+     */
+    batt_anim->cur_frame++;
+
+    /* if the frame is used for level-only, that is only show it when it's
+     * the current level, skip it during the animation.
+     */
+    while (batt_anim->cur_frame < batt_anim->num_frames &&
+           batt_anim->frames[batt_anim->cur_frame].level_only)
+        batt_anim->cur_frame++;
+    if (batt_anim->cur_frame >= batt_anim->num_frames) {
+        batt_anim->cur_cycle++;
+        batt_anim->cur_frame = 0;
+
+        /* don't reset the cycle counter, since we use that as a signal
+         * in a test above to check if animation is over
+         */
+    }
+}
+
+static int set_key_callback(int code, int value, void *data)
+{
+    struct charger *charger = (struct charger *)data;
+    int64_t now = curr_time_ms();
+    int down = !!value;
+
+    if (code > KEY_MAX)
+        return -1;
+
+    /* ignore events that don't modify our state */
+    if (charger->keys[code].down == down)
+        return 0;
+
+    /* only record the down even timestamp, as the amount
+     * of time the key spent not being pressed is not useful */
+    if (down)
+        charger->keys[code].timestamp = now;
+    charger->keys[code].down = down;
+    charger->keys[code].pending = true;
+    if (down) {
+        LOGV("[%lld] key[%d] down\n", now, code);
+    } else {
+        int64_t duration = now - charger->keys[code].timestamp;
+        int64_t secs = duration / 1000;
+        int64_t msecs = duration - secs * 1000;
+        LOGV("[%lld] key[%d] up (was down for %lld.%lldsec)\n", now,
+            code, secs, msecs);
+    }
+
+    return 0;
+}
+
+static void update_input_state(struct charger *charger,
+                               struct input_event *ev)
+{
+    if (ev->type != EV_KEY)
+        return;
+    set_key_callback(ev->code, ev->value, charger);
+}
+
+static void set_next_key_check(struct charger *charger,
+                               struct key_state *key,
+                               int64_t timeout)
+{
+    int64_t then = key->timestamp + timeout;
+
+    if (charger->next_key_check == -1 || then < charger->next_key_check)
+        charger->next_key_check = then;
+}
+
+static void process_key(struct charger *charger, int code, int64_t now)
+{
+    struct key_state *key = &charger->keys[code];
+    int64_t next_key_check;
+
+    if (code == KEY_POWER) {
+        if (key->down) {
+            int64_t reboot_timeout = key->timestamp + POWER_ON_KEY_TIME;
+            if (now >= reboot_timeout) {
+                LOGI("[%lld] rebooting\n", now);
+                android_reboot(ANDROID_RB_RESTART, 0, 0);
+            } else {
+                /* if the key is pressed but timeout hasn't expired,
+                 * make sure we wake up at the right-ish time to check
+                 */
+                set_next_key_check(charger, key, POWER_ON_KEY_TIME);
+            }
+        } else {
+            /* if the power key got released, force screen state cycle */
+            if (key->pending) {
+                request_suspend(false);
+                kick_animation(charger->batt_anim);
+            }
+        }
+    }
+
+    key->pending = false;
+}
+
+static void handle_input_state(struct charger *charger, int64_t now)
+{
+    process_key(charger, KEY_POWER, now);
+
+    if (charger->next_key_check != -1 && now > charger->next_key_check)
+        charger->next_key_check = -1;
+}
+
+static void handle_power_supply_state(struct charger *charger, int64_t now)
+{
+    if (!charger->have_battery_state)
+        return;
+
+    if (!charger->charger_connected) {
+        request_suspend(false);
+        if (charger->next_pwr_check == -1) {
+            charger->next_pwr_check = now + UNPLUGGED_SHUTDOWN_TIME;
+            LOGI("[%lld] device unplugged: shutting down in %lld (@ %lld)\n",
+                 now, UNPLUGGED_SHUTDOWN_TIME, charger->next_pwr_check);
+        } else if (now >= charger->next_pwr_check) {
+            LOGI("[%lld] shutting down\n", now);
+            android_reboot(ANDROID_RB_POWEROFF, 0, 0);
+        } else {
+            /* otherwise we already have a shutdown timer scheduled */
+        }
+    } else {
+        /* online supply present, reset shutdown timer if set */
+        if (charger->next_pwr_check != -1) {
+            LOGI("[%lld] device plugged in: shutdown cancelled\n", now);
+            kick_animation(charger->batt_anim);
+        }
+        charger->next_pwr_check = -1;
+    }
+}
+
+void healthd_mode_charger_heartbeat()
+{
+    struct charger *charger = &charger_state;
+    int64_t now = curr_time_ms();
+    int ret;
+
+    handle_input_state(charger, now);
+    handle_power_supply_state(charger, now);
+
+    /* do screen update last in case any of the above want to start
+     * screen transitions (animations, etc)
+     */
+    update_screen_state(charger, now);
+}
+
+void healthd_mode_charger_battery_update(
+    struct android::BatteryProperties *props)
+{
+    struct charger *charger = &charger_state;
+
+    charger->charger_connected =
+        props->chargerAcOnline || props->chargerUsbOnline ||
+        props->chargerWirelessOnline;
+    charger->capacity = props->batteryLevel;
+
+    if (!charger->have_battery_state) {
+        charger->have_battery_state = true;
+        charger->next_screen_transition = curr_time_ms() - 1;
+        reset_animation(charger->batt_anim);
+        kick_animation(charger->batt_anim);
+    }
+}
+
+int healthd_mode_charger_preparetowait(void)
+{
+    struct charger *charger = &charger_state;
+    int64_t now = curr_time_ms();
+    int64_t next_event = INT64_MAX;
+    int64_t timeout;
+    struct input_event ev;
+    int ret;
+
+    LOGV("[%lld] next screen: %lld next key: %lld next pwr: %lld\n", now,
+         charger->next_screen_transition, charger->next_key_check,
+         charger->next_pwr_check);
+
+    if (charger->next_screen_transition != -1)
+        next_event = charger->next_screen_transition;
+    if (charger->next_key_check != -1 && charger->next_key_check < next_event)
+        next_event = charger->next_key_check;
+    if (charger->next_pwr_check != -1 && charger->next_pwr_check < next_event)
+        next_event = charger->next_pwr_check;
+
+    if (next_event != -1 && next_event != INT64_MAX)
+        timeout = max(0, next_event - now);
+    else
+        timeout = -1;
+
+   return (int)timeout;
+}
+
+static int input_callback(int fd, unsigned int epevents, void *data)
+{
+    struct charger *charger = (struct charger *)data;
+    struct input_event ev;
+    int ret;
+
+    ret = ev_get_input(fd, epevents, &ev);
+    if (ret)
+        return -1;
+    update_input_state(charger, &ev);
+    return 0;
+}
+
+static void charger_event_handler(uint32_t epevents)
+{
+    int ret;
+
+    ret = ev_wait(-1);
+    if (!ret)
+        ev_dispatch();
+}
+
+void healthd_mode_charger_init(struct healthd_config *config)
+{
+    int ret;
+    struct charger *charger = &charger_state;
+    int i;
+    int epollfd;
+
+    dump_last_kmsg();
+
+    LOGI("--------------- STARTING CHARGER MODE ---------------\n");
+
+    gr_init();
+    gr_font_size(&char_width, &char_height);
+
+    ret = ev_init(input_callback, charger);
+    if (!ret) {
+        epollfd = ev_get_epollfd();
+        healthd_register_event(epollfd, charger_event_handler);
+    }
+
+    ret = res_create_surface("charger/battery_fail", &charger->surf_unknown);
+    if (ret < 0) {
+        LOGE("Cannot load image\n");
+        charger->surf_unknown = NULL;
+    }
+
+    charger->batt_anim = &battery_animation;
+
+    for (i = 0; i < charger->batt_anim->num_frames; i++) {
+        struct frame *frame = &charger->batt_anim->frames[i];
+
+        ret = res_create_surface(frame->name, &frame->surface);
+        if (ret < 0) {
+            LOGE("Cannot load image %s\n", frame->name);
+            /* TODO: free the already allocated surfaces... */
+            charger->batt_anim->num_frames = 0;
+            charger->batt_anim->num_cycles = 1;
+            break;
+        }
+    }
+
+    ev_sync_key_state(set_key_callback, charger);
+
+#ifndef CHARGER_DISABLE_INIT_BLANK
+    gr_fb_blank(true);
+#endif
+
+    charger->next_screen_transition = -1;
+    charger->next_key_check = -1;
+    charger->next_pwr_check = -1;
+}
diff --git a/charger/images/battery_0.png b/healthd/images/battery_0.png
similarity index 100%
rename from charger/images/battery_0.png
rename to healthd/images/battery_0.png
Binary files differ
diff --git a/charger/images/battery_1.png b/healthd/images/battery_1.png
similarity index 100%
rename from charger/images/battery_1.png
rename to healthd/images/battery_1.png
Binary files differ
diff --git a/charger/images/battery_2.png b/healthd/images/battery_2.png
similarity index 100%
rename from charger/images/battery_2.png
rename to healthd/images/battery_2.png
Binary files differ
diff --git a/charger/images/battery_3.png b/healthd/images/battery_3.png
similarity index 100%
rename from charger/images/battery_3.png
rename to healthd/images/battery_3.png
Binary files differ
diff --git a/charger/images/battery_4.png b/healthd/images/battery_4.png
similarity index 100%
rename from charger/images/battery_4.png
rename to healthd/images/battery_4.png
Binary files differ
diff --git a/charger/images/battery_5.png b/healthd/images/battery_5.png
similarity index 100%
rename from charger/images/battery_5.png
rename to healthd/images/battery_5.png
Binary files differ
diff --git a/charger/images/battery_charge.png b/healthd/images/battery_charge.png
similarity index 100%
rename from charger/images/battery_charge.png
rename to healthd/images/battery_charge.png
Binary files differ
diff --git a/charger/images/battery_fail.png b/healthd/images/battery_fail.png
similarity index 100%
rename from charger/images/battery_fail.png
rename to healthd/images/battery_fail.png
Binary files differ
diff --git a/include/backtrace/backtrace.h b/include/backtrace/backtrace.h
index 8a45690..a6a60c1 100644
--- a/include/backtrace/backtrace.h
+++ b/include/backtrace/backtrace.h
@@ -28,8 +28,8 @@
 // thread from the current process will be traced.
 #define BACKTRACE_CURRENT_PROCESS -1
 // When the tid to be traced is set to this value, then trace the specified
-// pid.
-#define BACKTRACE_NO_TID -1
+// current thread of the specified pid.
+#define BACKTRACE_CURRENT_THREAD -1
 
 #define MAX_BACKTRACE_FRAMES 64
 
diff --git a/include/cutils/klog.h b/include/cutils/klog.h
index ba728ac..3953904 100644
--- a/include/cutils/klog.h
+++ b/include/cutils/klog.h
@@ -23,7 +23,7 @@
 
 void klog_init(void);
 void klog_set_level(int level);
-void klog_close(void);
+/* TODO: void klog_close(void); - and make klog_fd users thread safe. */
 void klog_write(int level, const char *fmt, ...)
     __attribute__ ((format(printf, 2, 3)));
 
diff --git a/include/cutils/list.h b/include/cutils/list.h
index 72395f4..945729a 100644
--- a/include/cutils/list.h
+++ b/include/cutils/list.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2010 The Android Open Source Project
+ * Copyright (C) 2008-2013 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.
@@ -49,9 +49,25 @@
          node != (list); \
          node = next, next = node->next)
 
-void list_init(struct listnode *list);
-void list_add_tail(struct listnode *list, struct listnode *item);
-void list_remove(struct listnode *item);
+static inline void list_init(struct listnode *node)
+{
+    node->next = node;
+    node->prev = node;
+}
+
+static inline void list_add_tail(struct listnode *head, struct listnode *item)
+{
+    item->next = head;
+    item->prev = head->prev;
+    head->prev->next = item;
+    head->prev = item;
+}
+
+static inline void list_remove(struct listnode *item)
+{
+    item->next->prev = item->prev;
+    item->prev->next = item->next;
+}
 
 #define list_empty(list) ((list) == (list)->next)
 #define list_head(list) ((list)->next)
diff --git a/include/log/log.h b/include/log/log.h
index 7faddea..e3ecc69 100644
--- a/include/log/log.h
+++ b/include/log/log.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005 The Android Open Source Project
+ * Copyright (C) 2005-2013 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.
@@ -28,17 +28,16 @@
 #ifndef _LIBS_LOG_LOG_H
 #define _LIBS_LOG_LOG_H
 
-#include <stdio.h>
-#include <time.h>
 #include <sys/types.h>
-#include <unistd.h>
 #ifdef HAVE_PTHREADS
 #include <pthread.h>
 #endif
 #include <stdarg.h>
-
-#include <log/uio.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
 #include <log/logd.h>
+#include <log/uio.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -470,7 +469,8 @@
     EVENT_TYPE_STRING   = 2,
     EVENT_TYPE_LIST     = 3,
 } AndroidEventLogType;
-
+#define sizeof_AndroidEventLogType sizeof(typeof_AndroidEventLogType)
+#define typeof_AndroidEventLogType unsigned char
 
 #ifndef LOG_EVENT_INT
 #define LOG_EVENT_INT(_tag, _value) {                                       \
@@ -540,7 +540,9 @@
 #define android_logToFile(tag, file) (0)
 #define android_logToFd(tag, fd) (0)
 
-typedef enum {
+typedef enum log_id {
+    LOG_ID_MIN = 0,
+
     LOG_ID_MAIN = 0,
     LOG_ID_RADIO = 1,
     LOG_ID_EVENTS = 2,
@@ -548,6 +550,8 @@
 
     LOG_ID_MAX
 } log_id_t;
+#define sizeof_log_id_t sizeof(typeof_log_id_t)
+#define typeof_log_id_t unsigned char
 
 /*
  * Send a simple string to the log.
@@ -555,7 +559,6 @@
 int __android_log_buf_write(int bufID, int prio, const char *tag, const char *text);
 int __android_log_buf_print(int bufID, int prio, const char *tag, const char *fmt, ...);
 
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/log/logger.h b/include/log/logger.h
index 04f3fb0..a05b174 100644
--- a/include/log/logger.h
+++ b/include/log/logger.h
@@ -1,5 +1,5 @@
-/* utils/logger.h
-** 
+/*
+**
 ** Copyright 2007, The Android Open Source Project
 **
 ** This file is dual licensed.  It may be redistributed and/or modified
@@ -11,6 +11,11 @@
 #define _UTILS_LOGGER_H
 
 #include <stdint.h>
+#include <log/log.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 /*
  * The userspace structure for version 1 of the logger_entry ABI.
@@ -63,6 +68,106 @@
  */
 #define LOGGER_ENTRY_MAX_LEN		(5*1024)
 
+#define NS_PER_SEC 1000000000ULL
+
+struct log_msg {
+    union {
+        unsigned char buf[LOGGER_ENTRY_MAX_LEN + 1];
+        struct logger_entry_v2 entry;
+        struct logger_entry_v2 entry_v2;
+        struct logger_entry    entry_v1;
+        struct {
+            unsigned char buf[LOGGER_ENTRY_MAX_LEN + 1];
+            log_id_t id;
+        } extra;
+    } __attribute__((aligned(4)));
+#ifdef __cplusplus
+    /* Matching log_time_t operators */
+    bool operator== (log_msg &T)
+    {
+        return (entry.sec == T.entry.sec) && (entry.nsec == T.entry.nsec);
+    }
+    bool operator!= (log_msg &T)
+    {
+        return !(*this == T);
+    }
+    bool operator< (log_msg &T)
+    {
+        return (entry.sec < T.entry.sec)
+            || ((entry.sec == T.entry.sec)
+             && (entry.nsec < T.entry.nsec));
+    }
+    bool operator>= (log_msg &T)
+    {
+        return !(*this < T);
+    }
+    bool operator> (log_msg &T)
+    {
+        return (entry.sec > T.entry.sec)
+            || ((entry.sec == T.entry.sec)
+             && (entry.nsec > T.entry.nsec));
+    }
+    bool operator<= (log_msg &T)
+    {
+        return !(*this > T);
+    }
+    uint64_t nsec(void)
+    {
+        return static_cast<uint64_t>(entry.sec) * NS_PER_SEC + entry.nsec;
+    }
+
+    /* packet methods */
+    log_id_t id(void)
+    {
+        return extra.id;
+    }
+    char *msg(void)
+    {
+        return entry.hdr_size ? (char *) buf + entry.hdr_size : entry_v1.msg;
+    }
+    unsigned int len(void)
+    {
+        return (entry.hdr_size ? entry.hdr_size : sizeof(entry_v1)) + entry.len;
+    }
+#endif
+};
+
+struct logger;
+
+log_id_t android_logger_get_id(struct logger *logger);
+
+int android_logger_clear(struct logger *logger);
+int android_logger_get_log_size(struct logger *logger);
+int android_logger_get_log_readable_size(struct logger *logger);
+int android_logger_get_log_version(struct logger *logger);
+
+struct logger_list;
+
+struct logger_list *android_logger_list_alloc(int mode,
+                                              unsigned int tail,
+                                              pid_t pid);
+void android_logger_list_free(struct logger_list *logger_list);
+/* In the purest sense, the following two are orthogonal interfaces */
+int android_logger_list_read(struct logger_list *logger_list,
+                             struct log_msg *log_msg);
+
+/* Multiple log_id_t opens */
+struct logger *android_logger_open(struct logger_list *logger_list,
+                                   log_id_t id);
+#define android_logger_close android_logger_free
+/* Single log_id_t open */
+struct logger_list *android_logger_list_open(log_id_t id,
+                                             int mode,
+                                             unsigned int tail,
+                                             pid_t pid);
+#define android_logger_list_close android_logger_list_free
+
+/*
+ * log_id_t helpers
+ */
+log_id_t android_name_to_log_id(const char *logName);
+const char *android_log_id_to_name(log_id_t log_id);
+
 #ifdef HAVE_IOCTL
 
 #include <sys/ioctl.h>
@@ -78,4 +183,8 @@
 
 #endif // HAVE_IOCTL
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _UTILS_LOGGER_H */
diff --git a/include/private/android_filesystem_config.h b/include/private/android_filesystem_config.h
index 0ed0d78..53619ac 100644
--- a/include/private/android_filesystem_config.h
+++ b/include/private/android_filesystem_config.h
@@ -255,7 +255,6 @@
     { 00750, AID_ROOT,      AID_SHELL,     0, "sbin/*" },
     { 00755, AID_ROOT,      AID_ROOT,      0, "bin/*" },
     { 00750, AID_ROOT,      AID_SHELL,     0, "init*" },
-    { 00750, AID_ROOT,      AID_SHELL,     0, "charger*" },
     { 00750, AID_ROOT,      AID_SHELL,     0, "sbin/fs_mgr" },
     { 00640, AID_ROOT,      AID_SHELL,     0, "fstab.*" },
     { 00644, AID_ROOT,      AID_ROOT,      0, 0 },
diff --git a/include/utils/CallStack.h b/include/utils/CallStack.h
index 2056751..bfe2ddb 100644
--- a/include/utils/CallStack.h
+++ b/include/utils/CallStack.h
@@ -18,8 +18,9 @@
 #define ANDROID_CALLSTACK_H
 
 #include <android/log.h>
+#include <backtrace/backtrace.h>
 #include <utils/String8.h>
-#include <corkscrew/backtrace.h>
+#include <utils/Vector.h>
 
 #include <stdint.h>
 #include <sys/types.h>
@@ -31,42 +32,19 @@
 // Collect/print the call stack (function, file, line) traces for a single thread.
 class CallStack {
 public:
-    enum {
-        // Prune the lowest-most stack frames until we have at most MAX_DEPTH.
-        MAX_DEPTH = 31,
-        // Placeholder for specifying the current thread when updating the stack.
-        CURRENT_THREAD = -1,
-    };
-
     // Create an empty call stack. No-op.
     CallStack();
     // Create a callstack with the current thread's stack trace.
     // Immediately dump it to logcat using the given logtag.
-    CallStack(const char* logtag, int32_t ignoreDepth=1,
-            int32_t maxDepth=MAX_DEPTH);
-    // Copy the existing callstack (no other side effects).
-    CallStack(const CallStack& rhs);
+    CallStack(const char* logtag, int32_t ignoreDepth=1);
     ~CallStack();
 
-    // Copy the existing callstack (no other side effects).
-    CallStack& operator = (const CallStack& rhs);
-
-    // Compare call stacks by their backtrace frame memory.
-    bool operator == (const CallStack& rhs) const;
-    bool operator != (const CallStack& rhs) const;
-    bool operator < (const CallStack& rhs) const;
-    bool operator >= (const CallStack& rhs) const;
-    bool operator > (const CallStack& rhs) const;
-    bool operator <= (const CallStack& rhs) const;
-
-    // Get the PC address for the stack frame specified by index.
-    const void* operator [] (int index) const;
-
     // Reset the stack frames (same as creating an empty call stack).
-    void clear();
+    void clear() { mFrameLines.clear(); }
 
     // Immediately collect the stack traces for the specified thread.
-    void update(int32_t ignoreDepth=1, int32_t maxDepth=MAX_DEPTH, pid_t tid=CURRENT_THREAD);
+    // The default is to dump the stack of the current call.
+    void update(int32_t ignoreDepth=1, pid_t tid=BACKTRACE_CURRENT_THREAD);
 
     // Dump a stack trace to the log using the supplied logtag.
     void log(const char* logtag,
@@ -83,11 +61,10 @@
     void print(Printer& printer) const;
 
     // Get the count of stack frames that are in this call stack.
-    size_t size() const { return mCount; }
+    size_t size() const { return mFrameLines.size(); }
 
 private:
-    size_t mCount;
-    backtrace_frame_t mStack[MAX_DEPTH];
+    Vector<String8> mFrameLines;
 };
 
 }; // namespace android
diff --git a/include/utils/LruCache.h b/include/utils/LruCache.h
index 053bfaf..fa8f03f 100644
--- a/include/utils/LruCache.h
+++ b/include/utils/LruCache.h
@@ -17,8 +17,8 @@
 #ifndef ANDROID_UTILS_LRU_CACHE_H
 #define ANDROID_UTILS_LRU_CACHE_H
 
+#include <UniquePtr.h>
 #include <utils/BasicHashtable.h>
-#include <utils/UniquePtr.h>
 
 namespace android {
 
diff --git a/include/utils/ProcessCallStack.h b/include/utils/ProcessCallStack.h
index 4a86869..32458b8 100644
--- a/include/utils/ProcessCallStack.h
+++ b/include/utils/ProcessCallStack.h
@@ -39,7 +39,7 @@
     ~ProcessCallStack();
 
     // Immediately collect the stack traces for all threads.
-    void update(int32_t maxDepth = CallStack::MAX_DEPTH);
+    void update();
 
     // Print all stack traces to the log using the supplied logtag.
     void log(const char* logtag, android_LogPriority priority = ANDROID_LOG_DEBUG,
diff --git a/include/utils/UniquePtr.h b/include/utils/UniquePtr.h
deleted file mode 100644
index bc62fe6..0000000
--- a/include/utils/UniquePtr.h
+++ /dev/null
@@ -1,239 +0,0 @@
-/*
- * Copyright (C) 2010 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.
- */
-
-/* === NOTE === NOTE === NOTE === NOTE === NOTE === NOTE === NOTE === NOTE ===
- *
- * THIS IS A COPY OF libcore/include/UniquePtr.h AND AS SUCH THAT IS THE
- * CANONICAL SOURCE OF THIS FILE. PLEASE KEEP THEM IN SYNC.
- *
- * === NOTE === NOTE === NOTE === NOTE === NOTE === NOTE === NOTE === NOTE ===
- */
-
-#ifndef UNIQUE_PTR_H_included
-#define UNIQUE_PTR_H_included
-
-#include <cstdlib> // For NULL.
-
-// Default deleter for pointer types.
-template <typename T>
-struct DefaultDelete {
-    enum { type_must_be_complete = sizeof(T) };
-    DefaultDelete() {}
-    void operator()(T* p) const {
-        delete p;
-    }
-};
-
-// Default deleter for array types.
-template <typename T>
-struct DefaultDelete<T[]> {
-    enum { type_must_be_complete = sizeof(T) };
-    void operator()(T* p) const {
-        delete[] p;
-    }
-};
-
-// A smart pointer that deletes the given pointer on destruction.
-// Equivalent to C++0x's std::unique_ptr (a combination of boost::scoped_ptr
-// and boost::scoped_array).
-// Named to be in keeping with Android style but also to avoid
-// collision with any other implementation, until we can switch over
-// to unique_ptr.
-// Use thus:
-//   UniquePtr<C> c(new C);
-template <typename T, typename D = DefaultDelete<T> >
-class UniquePtr {
-public:
-    // Construct a new UniquePtr, taking ownership of the given raw pointer.
-    explicit UniquePtr(T* ptr = NULL) : mPtr(ptr) {
-    }
-
-    ~UniquePtr() {
-        reset();
-    }
-
-    // Accessors.
-    T& operator*() const { return *mPtr; }
-    T* operator->() const { return mPtr; }
-    T* get() const { return mPtr; }
-
-    // Returns the raw pointer and hands over ownership to the caller.
-    // The pointer will not be deleted by UniquePtr.
-    T* release() __attribute__((warn_unused_result)) {
-        T* result = mPtr;
-        mPtr = NULL;
-        return result;
-    }
-
-    // Takes ownership of the given raw pointer.
-    // If this smart pointer previously owned a different raw pointer, that
-    // raw pointer will be freed.
-    void reset(T* ptr = NULL) {
-        if (ptr != mPtr) {
-            D()(mPtr);
-            mPtr = ptr;
-        }
-    }
-
-private:
-    // The raw pointer.
-    T* mPtr;
-
-    // Comparing unique pointers is probably a mistake, since they're unique.
-    template <typename T2> bool operator==(const UniquePtr<T2>& p) const;
-    template <typename T2> bool operator!=(const UniquePtr<T2>& p) const;
-
-    // Disallow copy and assignment.
-    UniquePtr(const UniquePtr&);
-    void operator=(const UniquePtr&);
-};
-
-// Partial specialization for array types. Like std::unique_ptr, this removes
-// operator* and operator-> but adds operator[].
-template <typename T, typename D>
-class UniquePtr<T[], D> {
-public:
-    explicit UniquePtr(T* ptr = NULL) : mPtr(ptr) {
-    }
-
-    ~UniquePtr() {
-        reset();
-    }
-
-    T& operator[](size_t i) const {
-        return mPtr[i];
-    }
-    T* get() const { return mPtr; }
-
-    T* release() __attribute__((warn_unused_result)) {
-        T* result = mPtr;
-        mPtr = NULL;
-        return result;
-    }
-
-    void reset(T* ptr = NULL) {
-        if (ptr != mPtr) {
-            D()(mPtr);
-            mPtr = ptr;
-        }
-    }
-
-private:
-    T* mPtr;
-
-    // Disallow copy and assignment.
-    UniquePtr(const UniquePtr&);
-    void operator=(const UniquePtr&);
-};
-
-#if UNIQUE_PTR_TESTS
-
-// Run these tests with:
-// g++ -g -DUNIQUE_PTR_TESTS -x c++ UniquePtr.h && ./a.out
-
-#include <stdio.h>
-
-static void assert(bool b) {
-    if (!b) {
-        fprintf(stderr, "FAIL\n");
-        abort();
-    }
-    fprintf(stderr, "OK\n");
-}
-static int cCount = 0;
-struct C {
-    C() { ++cCount; }
-    ~C() { --cCount; }
-};
-static bool freed = false;
-struct Freer {
-    void operator()(int* p) {
-        assert(*p == 123);
-        free(p);
-        freed = true;
-    }
-};
-
-int main(int argc, char* argv[]) {
-    //
-    // UniquePtr<T> tests...
-    //
-
-    // Can we free a single object?
-    {
-        UniquePtr<C> c(new C);
-        assert(cCount == 1);
-    }
-    assert(cCount == 0);
-    // Does release work?
-    C* rawC;
-    {
-        UniquePtr<C> c(new C);
-        assert(cCount == 1);
-        rawC = c.release();
-    }
-    assert(cCount == 1);
-    delete rawC;
-    // Does reset work?
-    {
-        UniquePtr<C> c(new C);
-        assert(cCount == 1);
-        c.reset(new C);
-        assert(cCount == 1);
-    }
-    assert(cCount == 0);
-
-    //
-    // UniquePtr<T[]> tests...
-    //
-
-    // Can we free an array?
-    {
-        UniquePtr<C[]> cs(new C[4]);
-        assert(cCount == 4);
-    }
-    assert(cCount == 0);
-    // Does release work?
-    {
-        UniquePtr<C[]> c(new C[4]);
-        assert(cCount == 4);
-        rawC = c.release();
-    }
-    assert(cCount == 4);
-    delete[] rawC;
-    // Does reset work?
-    {
-        UniquePtr<C[]> c(new C[4]);
-        assert(cCount == 4);
-        c.reset(new C[2]);
-        assert(cCount == 2);
-    }
-    assert(cCount == 0);
-
-    //
-    // Custom deleter tests...
-    //
-    assert(!freed);
-    {
-        UniquePtr<int, Freer> i(reinterpret_cast<int*>(malloc(sizeof(int))));
-        *i = 123;
-    }
-    assert(freed);
-    return 0;
-}
-#endif
-
-#endif  // UNIQUE_PTR_H_included
diff --git a/init/property_service.c b/init/property_service.c
index c370769..1b9327c 100644
--- a/init/property_service.c
+++ b/init/property_service.c
@@ -281,7 +281,6 @@
 static bool is_legal_property_name(const char* name, size_t namelen)
 {
     size_t i;
-    bool previous_was_dot = false;
     if (namelen >= PROP_NAME_MAX) return false;
     if (namelen < 1) return false;
     if (name[0] == '.') return false;
@@ -291,11 +290,10 @@
     /* Don't allow ".." to appear in a property name */
     for (i = 0; i < namelen; i++) {
         if (name[i] == '.') {
-            if (previous_was_dot == true) return false;
-            previous_was_dot = true;
+            // i=0 is guaranteed to never have a dot. See above.
+            if (name[i-1] == '.') return false;
             continue;
         }
-        previous_was_dot = false;
         if (name[i] == '_' || name[i] == '-') continue;
         if (name[i] >= 'a' && name[i] <= 'z') continue;
         if (name[i] >= 'A' && name[i] <= 'Z') continue;
diff --git a/libbacktrace/Backtrace.cpp b/libbacktrace/Backtrace.cpp
index b22d301..0348d78 100644
--- a/libbacktrace/Backtrace.cpp
+++ b/libbacktrace/Backtrace.cpp
@@ -214,12 +214,12 @@
 
 Backtrace* Backtrace::Create(pid_t pid, pid_t tid) {
   if (pid == BACKTRACE_CURRENT_PROCESS || pid == getpid()) {
-    if (tid == BACKTRACE_NO_TID || tid == gettid()) {
+    if (tid == BACKTRACE_CURRENT_THREAD || tid == gettid()) {
       return CreateCurrentObj();
     } else {
       return CreateThreadObj(tid);
     }
-  } else if (tid == BACKTRACE_NO_TID) {
+  } else if (tid == BACKTRACE_CURRENT_THREAD) {
     return CreatePtraceObj(pid, pid);
   } else {
     return CreatePtraceObj(pid, tid);
diff --git a/libbacktrace/backtrace_test.cpp b/libbacktrace/backtrace_test.cpp
index 2603e1f..b894446 100644
--- a/libbacktrace/backtrace_test.cpp
+++ b/libbacktrace/backtrace_test.cpp
@@ -143,7 +143,8 @@
 void VerifyLevelBacktrace(void*) {
   backtrace_context_t context;
 
-  ASSERT_TRUE(backtrace_create_context(&context, BACKTRACE_CURRENT_PROCESS, BACKTRACE_NO_TID, 0));
+  ASSERT_TRUE(backtrace_create_context(&context, BACKTRACE_CURRENT_PROCESS,
+                                       BACKTRACE_CURRENT_THREAD, 0));
 
   VerifyLevelDump(context.backtrace);
 
@@ -165,7 +166,8 @@
 void VerifyMaxBacktrace(void*) {
   backtrace_context_t context;
 
-  ASSERT_TRUE(backtrace_create_context(&context, BACKTRACE_CURRENT_PROCESS, BACKTRACE_NO_TID, 0));
+  ASSERT_TRUE(backtrace_create_context(&context, BACKTRACE_CURRENT_PROCESS,
+                                       BACKTRACE_CURRENT_THREAD, 0));
 
   VerifyMaxDump(context.backtrace);
 
@@ -232,15 +234,18 @@
 
 void VerifyLevelIgnoreFrames(void*) {
   backtrace_context_t all;
-  ASSERT_TRUE(backtrace_create_context(&all, BACKTRACE_CURRENT_PROCESS, BACKTRACE_NO_TID, 0));
+  ASSERT_TRUE(backtrace_create_context(&all, BACKTRACE_CURRENT_PROCESS,
+                                       BACKTRACE_CURRENT_THREAD, 0));
   ASSERT_TRUE(all.backtrace != NULL);
 
   backtrace_context_t ign1;
-  ASSERT_TRUE(backtrace_create_context(&ign1, BACKTRACE_CURRENT_PROCESS, BACKTRACE_NO_TID, 1));
+  ASSERT_TRUE(backtrace_create_context(&ign1, BACKTRACE_CURRENT_PROCESS,
+                                       BACKTRACE_CURRENT_THREAD, 1));
   ASSERT_TRUE(ign1.backtrace != NULL);
 
   backtrace_context_t ign2;
-  ASSERT_TRUE(backtrace_create_context(&ign2, BACKTRACE_CURRENT_PROCESS, BACKTRACE_NO_TID, 2));
+  ASSERT_TRUE(backtrace_create_context(&ign2, BACKTRACE_CURRENT_PROCESS,
+                                       BACKTRACE_CURRENT_THREAD, 2));
   ASSERT_TRUE(ign2.backtrace != NULL);
 
   VerifyIgnoreFrames(all.backtrace, ign1.backtrace, ign2.backtrace,
@@ -296,7 +301,7 @@
     ASSERT_NE(test_level_one(1, 2, 3, 4, NULL, NULL), 0);
     exit(1);
   }
-  VerifyProcTest(pid, BACKTRACE_NO_TID, ReadyLevelBacktrace, VerifyLevelDump);
+  VerifyProcTest(pid, BACKTRACE_CURRENT_THREAD, ReadyLevelBacktrace, VerifyLevelDump);
 
   kill(pid, SIGKILL);
   int status;
@@ -309,7 +314,7 @@
     ASSERT_NE(test_recursive_call(MAX_BACKTRACE_FRAMES+10, NULL, NULL), 0);
     exit(1);
   }
-  VerifyProcTest(pid, BACKTRACE_NO_TID, ReadyMaxBacktrace, VerifyMaxDump);
+  VerifyProcTest(pid, BACKTRACE_CURRENT_THREAD, ReadyMaxBacktrace, VerifyMaxDump);
 
   kill(pid, SIGKILL);
   int status;
@@ -320,11 +325,11 @@
   pid_t pid = bt_all->pid;
 
   backtrace_context_t ign1;
-  ASSERT_TRUE(backtrace_create_context(&ign1, pid, BACKTRACE_NO_TID, 1));
+  ASSERT_TRUE(backtrace_create_context(&ign1, pid, BACKTRACE_CURRENT_THREAD, 1));
   ASSERT_TRUE(ign1.backtrace != NULL);
 
   backtrace_context_t ign2;
-  ASSERT_TRUE(backtrace_create_context(&ign2, pid, BACKTRACE_NO_TID, 2));
+  ASSERT_TRUE(backtrace_create_context(&ign2, pid, BACKTRACE_CURRENT_THREAD, 2));
   ASSERT_TRUE(ign2.backtrace != NULL);
 
   VerifyIgnoreFrames(bt_all, ign1.backtrace, ign2.backtrace, NULL);
@@ -339,7 +344,7 @@
     ASSERT_NE(test_level_one(1, 2, 3, 4, NULL, NULL), 0);
     exit(1);
   }
-  VerifyProcTest(pid, BACKTRACE_NO_TID, ReadyLevelBacktrace, VerifyProcessIgnoreFrames);
+  VerifyProcTest(pid, BACKTRACE_CURRENT_THREAD, ReadyLevelBacktrace, VerifyProcessIgnoreFrames);
 
   kill(pid, SIGKILL);
   int status;
@@ -614,10 +619,12 @@
 TEST(libbacktrace, format_test) {
   backtrace_context_t context;
 
-  ASSERT_TRUE(backtrace_create_context(&context, BACKTRACE_CURRENT_PROCESS, BACKTRACE_NO_TID, 0));
+  ASSERT_TRUE(backtrace_create_context(&context, BACKTRACE_CURRENT_PROCESS,
+                                       BACKTRACE_CURRENT_THREAD, 0));
   ASSERT_TRUE(context.backtrace != NULL);
 
-  backtrace_frame_data_t* frame = const_cast<backtrace_frame_data_t*>(&context.backtrace->frames[1]);
+  backtrace_frame_data_t* frame =
+      const_cast<backtrace_frame_data_t*>(&context.backtrace->frames[1]);
   backtrace_frame_data_t save_frame = *frame;
 
   memset(frame, 0, sizeof(backtrace_frame_data_t));
diff --git a/libbacktrace/map_info.c b/libbacktrace/map_info.c
index 9cc6e01..073b24a 100644
--- a/libbacktrace/map_info.c
+++ b/libbacktrace/map_info.c
@@ -21,7 +21,7 @@
 #include <limits.h>
 #include <pthread.h>
 #include <unistd.h>
-#include <cutils/log.h>
+#include <log/log.h>
 #include <sys/time.h>
 
 #include <backtrace/backtrace.h>
diff --git a/libcutils/Android.mk b/libcutils/Android.mk
index f8dda36..002b730 100644
--- a/libcutils/Android.mk
+++ b/libcutils/Android.mk
@@ -37,7 +37,6 @@
 	config_utils.c \
 	cpu_info.c \
 	load_file.c \
-	list.c \
 	open_memstream.c \
 	strdup16to8.c \
 	strdup8to16.c \
diff --git a/libcutils/android_reboot.c b/libcutils/android_reboot.c
index aef3054..b7895fa 100644
--- a/libcutils/android_reboot.c
+++ b/libcutils/android_reboot.c
@@ -25,6 +25,8 @@
 
 #include <cutils/android_reboot.h>
 
+#define UNUSED __attribute__((unused))
+
 /* Check to see if /proc/mounts contains any writeable filesystems
  * backed by a block device.
  * Return true if none found, else return false.
@@ -102,7 +104,7 @@
 }
 
 
-int android_reboot(int cmd, int flags, char *arg)
+int android_reboot(int cmd, int flags UNUSED, char *arg)
 {
     int ret;
 
diff --git a/libcutils/list.c b/libcutils/list.c
deleted file mode 100644
index e13452d..0000000
--- a/libcutils/list.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * 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 <cutils/list.h>
-
-void list_init(struct listnode *node)
-{
-    node->next = node;
-    node->prev = node;
-}
-
-void list_add_tail(struct listnode *head, struct listnode *item)
-{
-    item->next = head;
-    item->prev = head->prev;
-    head->prev->next = item;
-    head->prev = item;
-}
-
-void list_remove(struct listnode *item)
-{
-    item->next->prev = item->prev;
-    item->prev->next = item->next;
-}
diff --git a/libcutils/socket_local_client.c b/libcutils/socket_local_client.c
index 036ce2e..5310516 100644
--- a/libcutils/socket_local_client.c
+++ b/libcutils/socket_local_client.c
@@ -39,6 +39,8 @@
 
 #include "socket_local.h"
 
+#define UNUSED __attribute__((unused))
+
 #define LISTEN_BACKLOG 4
 
 /* Documented in header file. */
@@ -122,7 +124,7 @@
  * Used by AndroidSocketImpl
  */
 int socket_local_client_connect(int fd, const char *name, int namespaceId, 
-        int type)
+        int type UNUSED)
 {
     struct sockaddr_un addr;
     socklen_t alen;
diff --git a/libcutils/str_parms.c b/libcutils/str_parms.c
index 9e1d2dc..7cfbcb3 100644
--- a/libcutils/str_parms.c
+++ b/libcutils/str_parms.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011 The Android Open Source Project
+ * Copyright (C) 2011-2013 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.
@@ -30,6 +30,8 @@
 
 #include <cutils/str_parms.h>
 
+#define UNUSED __attribute__((unused))
+
 struct str_parms {
     Hashmap *map;
 };
@@ -278,10 +280,11 @@
         return -ENOENT;
 
     out = strtof(value, &end);
-    if (*value != '\0' && *end == '\0')
-        return 0;
+    if (*value == '\0' || *end != '\0')
+        return -EINVAL;
 
-    return -EINVAL;
+    *val = out;
+    return 0;
 }
 
 static bool combine_strings(void *key, void *value, void *context)
@@ -318,7 +321,7 @@
     return str;
 }
 
-static bool dump_entry(void *key, void *value, void *context)
+static bool dump_entry(void *key, void *value, void *context UNUSED)
 {
     ALOGI("key: '%s' value: '%s'\n", (char *)key, (char *)value);
     return true;
diff --git a/liblog/Android.mk b/liblog/Android.mk
index 6bfb119..78ff1ed 100644
--- a/liblog/Android.mk
+++ b/liblog/Android.mk
@@ -42,7 +42,7 @@
 endif
 
 liblog_host_sources := $(liblog_sources) fake_log_device.c
-
+liblog_target_sources = $(liblog_sources) log_read.c
 
 # Shared and static library for host
 # ========================================================
@@ -72,7 +72,7 @@
 # ========================================================
 include $(CLEAR_VARS)
 LOCAL_MODULE := liblog
-LOCAL_SRC_FILES := $(liblog_sources)
+LOCAL_SRC_FILES := $(liblog_target_sources)
 include $(BUILD_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
diff --git a/liblog/fake_log_device.c b/liblog/fake_log_device.c
index 5283619..be34f01 100644
--- a/liblog/fake_log_device.c
+++ b/liblog/fake_log_device.c
@@ -19,6 +19,8 @@
  * passed on to the underlying (fake) log device.  When not in the
  * simulator, messages are printed to stderr.
  */
+#include "fake_log_device.h"
+
 #include <log/logd.h>
 
 #include <stdlib.h>
diff --git a/liblog/fake_log_device.h b/liblog/fake_log_device.h
new file mode 100644
index 0000000..9d168cd
--- /dev/null
+++ b/liblog/fake_log_device.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef _LIBLOG_FAKE_LOG_DEVICE_H
+#define _LIBLOG_FAKE_LOG_DEVICE_H
+
+#include <sys/types.h>
+
+struct iovec;
+
+int fakeLogOpen(const char *pathName, int flags);
+int fakeLogClose(int fd);
+ssize_t fakeLogWritev(int fd, const struct iovec* vector, int count);
+
+#endif // _LIBLOG_FAKE_LOG_DEVICE_H
diff --git a/liblog/log_read.c b/liblog/log_read.c
new file mode 100644
index 0000000..11464ce
--- /dev/null
+++ b/liblog/log_read.c
@@ -0,0 +1,652 @@
+/*
+** Copyright 2013, 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.
+*/
+
+#define _GNU_SOURCE /* asprintf for x86 host */
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <cutils/list.h>
+#include <log/log.h>
+#include <log/logger.h>
+
+typedef char bool;
+#define false (const bool)0
+#define true (const bool)1
+
+#define LOG_FILE_DIR "/dev/log/"
+
+#define LOG_TIMEOUT_MS 5
+
+#define logger_for_each(logger, logger_list) \
+    for (logger = node_to_item((logger_list)->node.next, struct logger, node); \
+         logger != node_to_item(&(logger_list)->node, struct logger, node); \
+         logger = node_to_item((logger)->node.next, struct logger, node))
+
+/* In the future, we would like to make this list extensible */
+static const char *LOG_NAME[LOG_ID_MAX] = {
+    [LOG_ID_MAIN] = "main",
+    [LOG_ID_RADIO] = "radio",
+    [LOG_ID_EVENTS] = "events",
+    [LOG_ID_SYSTEM] = "system"
+};
+
+const char *android_log_id_to_name(log_id_t log_id) {
+    if (log_id >= LOG_ID_MAX) {
+        log_id = LOG_ID_MAIN;
+    }
+    return LOG_NAME[log_id];
+}
+
+static int accessmode(int mode)
+{
+    if ((mode & O_ACCMODE) == O_WRONLY) {
+        return W_OK;
+    }
+    if ((mode & O_ACCMODE) == O_RDWR) {
+        return R_OK | W_OK;
+    }
+    return R_OK;
+}
+
+/* repeated fragment */
+static int check_allocate_accessible(char **n, const char *b, int mode)
+{
+    *n = NULL;
+
+    if (!b) {
+        return -EINVAL;
+    }
+
+    asprintf(n, LOG_FILE_DIR "%s", b);
+    if (!*n) {
+        return -1;
+    }
+
+    return access(*n, accessmode(mode));
+}
+
+log_id_t android_name_to_log_id(const char *logName) {
+    const char *b;
+    char *n;
+    int ret;
+
+    if (!logName) {
+        return -1; /* NB: log_id_t is unsigned */
+    }
+    b = strrchr(logName, '/');
+    if (!b) {
+        b = logName;
+    } else {
+        ++b;
+    }
+
+    ret = check_allocate_accessible(&n, b, O_RDONLY);
+    free(n);
+    if (ret) {
+        return ret;
+    }
+
+    for(ret = LOG_ID_MIN; ret < LOG_ID_MAX; ++ret) {
+        const char *l = LOG_NAME[ret];
+        if (l && !strcmp(b, l)) {
+            return ret;
+        }
+    }
+    return -1;   /* should never happen */
+}
+
+struct logger_list {
+    struct listnode node;
+    int mode;
+    unsigned int tail;
+    pid_t pid;
+    unsigned int queued_lines;
+    int timeout_ms;
+    int error;
+    bool flush;
+    bool valid_entry; /* valiant(?) effort to deal with memory starvation */
+    struct log_msg entry;
+};
+
+struct log_list {
+    struct listnode node;
+    struct log_msg entry; /* Truncated to event->len() + 1 to save space */
+};
+
+struct logger {
+    struct listnode node;
+    struct logger_list *top;
+    int fd;
+    log_id_t id;
+    short *revents;
+    struct listnode log_list;
+};
+
+/* android_logger_alloc unimplemented, no use case */
+/* android_logger_free not exported */
+static void android_logger_free(struct logger *logger)
+{
+    if (!logger) {
+        return;
+    }
+
+    while (!list_empty(&logger->log_list)) {
+        struct log_list *entry = node_to_item(
+            list_head(&logger->log_list), struct log_list, node);
+        list_remove(&entry->node);
+        free(entry);
+        if (logger->top->queued_lines) {
+            logger->top->queued_lines--;
+        }
+    }
+
+    if (logger->fd >= 0) {
+        close(logger->fd);
+    }
+
+    list_remove(&logger->node);
+
+    free(logger);
+}
+
+log_id_t android_logger_get_id(struct logger *logger)
+{
+    return logger->id;
+}
+
+/* worker for sending the command to the logger */
+static int logger_ioctl(struct logger *logger, int cmd, int mode)
+{
+    char *n;
+    int  f, ret;
+
+    if (!logger || !logger->top) {
+        return -EFAULT;
+    }
+
+    if (((mode & O_ACCMODE) == O_RDWR)
+     || (((mode ^ logger->top->mode) & O_ACCMODE) == 0)) {
+        return ioctl(logger->fd, cmd);
+    }
+
+    /* We go here if android_logger_list_open got mode wrong for this ioctl */
+    ret = check_allocate_accessible(&n, android_log_id_to_name(logger->id), mode);
+    if (ret) {
+        free(n);
+        return ret;
+    }
+
+    f = open(n, mode);
+    free(n);
+    if (f < 0) {
+        return f;
+    }
+
+    ret = ioctl(f, cmd);
+    close (f);
+
+    return ret;
+}
+
+int android_logger_clear(struct logger *logger)
+{
+    return logger_ioctl(logger, LOGGER_FLUSH_LOG, O_WRONLY);
+}
+
+/* returns the total size of the log's ring buffer */
+int android_logger_get_log_size(struct logger *logger)
+{
+    return logger_ioctl(logger, LOGGER_GET_LOG_BUF_SIZE, O_RDWR);
+}
+
+/*
+ * returns the readable size of the log's ring buffer (that is, amount of the
+ * log consumed)
+ */
+int android_logger_get_log_readable_size(struct logger *logger)
+{
+    return logger_ioctl(logger, LOGGER_GET_LOG_LEN, O_RDONLY);
+}
+
+/*
+ * returns the logger version
+ */
+int android_logger_get_log_version(struct logger *logger)
+{
+    int ret = logger_ioctl(logger, LOGGER_GET_VERSION, O_RDWR);
+    return (ret < 0) ? 1 : ret;
+}
+
+struct logger_list *android_logger_list_alloc(int mode,
+                                              unsigned int tail,
+                                              pid_t pid)
+{
+    struct logger_list *logger_list;
+
+    logger_list = calloc(1, sizeof(*logger_list));
+    if (!logger_list) {
+        return NULL;
+    }
+    list_init(&logger_list->node);
+    logger_list->mode = mode;
+    logger_list->tail = tail;
+    logger_list->pid = pid;
+    return logger_list;
+}
+
+/* android_logger_list_register unimplemented, no use case */
+/* android_logger_list_unregister unimplemented, no use case */
+
+/* Open the named log and add it to the logger list */
+struct logger *android_logger_open(struct logger_list *logger_list,
+                                   log_id_t id)
+{
+    struct listnode *node;
+    struct logger *logger;
+    char *n;
+
+    if (!logger_list || (id >= LOG_ID_MAX)) {
+        goto err;
+    }
+
+    logger_for_each(logger, logger_list) {
+        if (logger->id == id) {
+            goto ok;
+        }
+    }
+
+    logger = calloc(1, sizeof(*logger));
+    if (!logger) {
+        goto err;
+    }
+
+    if (check_allocate_accessible(&n, android_log_id_to_name(id),
+                                  logger_list->mode)) {
+        goto err_name;
+    }
+
+    logger->fd = open(n, logger_list->mode);
+    if (logger->fd < 0) {
+        goto err_name;
+    }
+
+    free(n);
+    logger->id = id;
+    list_init(&logger->log_list);
+    list_add_tail(&logger_list->node, &logger->node);
+    logger->top = logger_list;
+    logger_list->timeout_ms = LOG_TIMEOUT_MS;
+    goto ok;
+
+err_name:
+    free(n);
+err_logger:
+    free(logger);
+err:
+    logger = NULL;
+ok:
+    return logger;
+}
+
+/* Open the single named log and make it part of a new logger list */
+struct logger_list *android_logger_list_open(log_id_t id,
+                                             int mode,
+                                             unsigned int tail,
+                                             pid_t pid)
+{
+    struct logger_list *logger_list = android_logger_list_alloc(mode, tail, pid);
+    if (!logger_list) {
+        return NULL;
+    }
+
+    if (!android_logger_open(logger_list, id)) {
+        android_logger_list_free(logger_list);
+        return NULL;
+    }
+
+    return logger_list;
+}
+
+/* prevent memory starvation when backfilling */
+static unsigned int queue_threshold(struct logger_list *logger_list)
+{
+    return (logger_list->tail < 64) ? 64 : logger_list->tail;
+}
+
+static bool low_queue(struct listnode *node)
+{
+    /* low is considered less than 2 */
+    return list_head(node) == list_tail(node);
+}
+
+/* Flush queues in sequential order, one at a time */
+static int android_logger_list_flush(struct logger_list *logger_list,
+                                     struct log_msg *log_msg)
+{
+    int ret = 0;
+    struct log_list *firstentry = NULL;
+
+    while ((ret == 0)
+     && (logger_list->flush
+      || (logger_list->queued_lines > logger_list->tail))) {
+        struct logger *logger;
+
+        /* Merge sort */
+        bool at_least_one_is_low = false;
+        struct logger *firstlogger = NULL;
+        firstentry = NULL;
+
+        logger_for_each(logger, logger_list) {
+            struct listnode *node;
+            struct log_list *oldest = NULL;
+
+            /* kernel logger channels not necessarily time-sort order */
+            list_for_each(node, &logger->log_list) {
+                struct log_list *entry = node_to_item(node,
+                                                      struct log_list, node);
+                if (!oldest
+                 || (entry->entry.entry.sec < oldest->entry.entry.sec)
+                 || ((entry->entry.entry.sec == oldest->entry.entry.sec)
+                  && (entry->entry.entry.nsec < oldest->entry.entry.nsec))) {
+                     oldest = entry;
+                }
+            }
+
+            if (!oldest) {
+                at_least_one_is_low = true;
+                continue;
+            } else if (low_queue(&logger->log_list)) {
+                at_least_one_is_low = true;
+            }
+
+            if (!firstentry
+             || (oldest->entry.entry.sec < firstentry->entry.entry.sec)
+             || ((oldest->entry.entry.sec == firstentry->entry.entry.sec)
+              && (oldest->entry.entry.nsec < firstentry->entry.entry.nsec))) {
+                firstentry = oldest;
+                firstlogger = logger;
+            }
+        }
+
+        if (!firstentry) {
+            break;
+        }
+
+        /* when trimming list, tries to keep one entry behind in each bucket */
+        if (!logger_list->flush
+         && at_least_one_is_low
+         && (logger_list->queued_lines < queue_threshold(logger_list))) {
+            break;
+        }
+
+        /* within tail?, send! */
+        if ((logger_list->tail == 0)
+         || (logger_list->queued_lines <= logger_list->tail)) {
+            ret = firstentry->entry.entry.hdr_size;
+            if (!ret) {
+                ret = sizeof(firstentry->entry.entry_v1);
+            }
+            ret += firstentry->entry.entry.len;
+
+            memcpy(log_msg->buf, firstentry->entry.buf, ret + 1);
+            log_msg->extra.id = firstlogger->id;
+        }
+
+        /* next entry */
+        list_remove(&firstentry->node);
+        free(firstentry);
+        if (logger_list->queued_lines) {
+            logger_list->queued_lines--;
+        }
+    }
+
+    /* Flushed the list, no longer in tail mode for continuing content */
+    if (logger_list->flush && !firstentry) {
+        logger_list->tail = 0;
+    }
+    return ret;
+}
+
+/* Read from the selected logs */
+int android_logger_list_read(struct logger_list *logger_list,
+                             struct log_msg *log_msg)
+{
+    struct logger *logger;
+    nfds_t nfds;
+    struct pollfd *p, *pollfds = NULL;
+    int error = 0, ret = 0;
+
+    memset(log_msg, 0, sizeof(struct log_msg));
+
+    if (!logger_list) {
+        return -ENODEV;
+    }
+
+    if (!(accessmode(logger_list->mode) & R_OK)) {
+        logger_list->error = EPERM;
+        goto done;
+    }
+
+    nfds = 0;
+    logger_for_each(logger, logger_list) {
+        ++nfds;
+    }
+    if (nfds <= 0) {
+        error = ENODEV;
+        goto done;
+    }
+
+    /* Do we have anything to offer from the buffer or state? */
+    if (logger_list->valid_entry) { /* implies we are also in a flush state */
+        goto flush;
+    }
+
+    ret = android_logger_list_flush(logger_list, log_msg);
+    if (ret) {
+        goto done;
+    }
+
+    if (logger_list->error) { /* implies we are also in a flush state */
+        goto done;
+    }
+
+    /* Lets start grinding on metal */
+    pollfds = calloc(nfds, sizeof(struct pollfd));
+    if (!pollfds) {
+        error = ENOMEM;
+        goto flush;
+    }
+
+    p = pollfds;
+    logger_for_each(logger, logger_list) {
+        p->fd = logger->fd;
+        p->events = POLLIN;
+        logger->revents = &p->revents;
+        ++p;
+    }
+
+    while (!ret && !error) {
+        int result;
+
+        /* If we oversleep it's ok, i.e. ignore EINTR. */
+        result = TEMP_FAILURE_RETRY(
+            poll(pollfds, nfds, logger_list->timeout_ms));
+
+        if (result <= 0) {
+            if (result) {
+                error = errno;
+            } else if (logger_list->mode & O_NDELAY) {
+                error = EAGAIN;
+            } else {
+                logger_list->timeout_ms = 0;
+            }
+
+            logger_list->flush = true;
+            goto try_flush;
+        }
+
+        logger_list->timeout_ms = LOG_TIMEOUT_MS;
+
+        /* Anti starvation */
+        if (!logger_list->flush
+         && (logger_list->queued_lines > (queue_threshold(logger_list) / 2))) {
+            /* Any queues with input pending that is low? */
+            bool starving = false;
+            logger_for_each(logger, logger_list) {
+                if ((*(logger->revents) & POLLIN)
+                 && low_queue(&logger->log_list)) {
+                    starving = true;
+                    break;
+                }
+            }
+
+            /* pushback on any queues that are not low */
+            if (starving) {
+                logger_for_each(logger, logger_list) {
+                    if ((*(logger->revents) & POLLIN)
+                     && !low_queue(&logger->log_list)) {
+                        *(logger->revents) &= ~POLLIN;
+                    }
+                }
+            }
+        }
+
+        logger_for_each(logger, logger_list) {
+            unsigned int hdr_size;
+            struct log_list *entry;
+
+            if (!(*(logger->revents) & POLLIN)) {
+                continue;
+            }
+
+            memset(logger_list->entry.buf, 0, sizeof(struct log_msg));
+            /* NOTE: driver guarantees we read exactly one full entry */
+            result = read(logger->fd, logger_list->entry.buf,
+                          LOGGER_ENTRY_MAX_LEN);
+            if (result <= 0) {
+                if (!result) {
+                    error = EIO;
+                } else if (errno != EINTR) {
+                    error = errno;
+                }
+                continue;
+            }
+
+            if (logger_list->pid
+             && (logger_list->pid != logger_list->entry.entry.pid)) {
+                continue;
+            }
+
+            hdr_size = logger_list->entry.entry.hdr_size;
+            if (!hdr_size) {
+                hdr_size = sizeof(logger_list->entry.entry_v1);
+            }
+
+            if ((hdr_size > sizeof(struct log_msg))
+             || (logger_list->entry.entry.len
+               > sizeof(logger_list->entry.buf) - hdr_size)
+             || (logger_list->entry.entry.len != result - hdr_size)) {
+                error = EINVAL;
+                continue;
+            }
+
+            logger_list->entry.extra.id = logger->id;
+
+            /* speedup: If not tail, and only one list, send directly */
+            if (!logger_list->tail
+             && (list_head(&logger_list->node)
+              == list_tail(&logger_list->node))) {
+                ret = result;
+                memcpy(log_msg->buf, logger_list->entry.buf, result + 1);
+                log_msg->extra.id = logger->id;
+                break;
+            }
+
+            entry = malloc(sizeof(*entry) - sizeof(entry->entry) + result + 1);
+
+            if (!entry) {
+                logger_list->valid_entry = true;
+                error = ENOMEM;
+                break;
+            }
+
+            logger_list->queued_lines++;
+
+            memcpy(entry->entry.buf, logger_list->entry.buf, result);
+            entry->entry.buf[result] = '\0';
+            list_add_tail(&logger->log_list, &entry->node);
+        }
+
+        if (ret <= 0) {
+try_flush:
+            ret = android_logger_list_flush(logger_list, log_msg);
+        }
+    }
+
+    free(pollfds);
+
+flush:
+    if (error) {
+        logger_list->flush = true;
+    }
+
+    if (ret <= 0) {
+        ret = android_logger_list_flush(logger_list, log_msg);
+
+        if (!ret && logger_list->valid_entry) {
+            ret = logger_list->entry.entry.hdr_size;
+            if (!ret) {
+                ret = sizeof(logger_list->entry.entry_v1);
+            }
+            ret += logger_list->entry.entry.len;
+
+            memcpy(log_msg->buf, logger_list->entry.buf,
+                   sizeof(struct log_msg));
+            logger_list->valid_entry = false;
+        }
+    }
+
+done:
+    if (logger_list->error) {
+        error = logger_list->error;
+    }
+    if (error) {
+        logger_list->error = error;
+        if (!ret) {
+            ret = -error;
+        }
+    }
+    return ret;
+}
+
+/* Close all the logs */
+void android_logger_list_free(struct logger_list *logger_list)
+{
+    if (logger_list == NULL) {
+        return;
+    }
+
+    while (!list_empty(&logger_list->node)) {
+        struct listnode *node = list_head(&logger_list->node);
+        struct logger *logger = node_to_item(node, struct logger, node);
+        android_logger_free(logger);
+    }
+
+    free(logger_list);
+}
diff --git a/liblog/logd_write.c b/liblog/logd_write.c
index fff7cc4..6ae339f 100644
--- a/liblog/logd_write.c
+++ b/liblog/logd_write.c
@@ -31,10 +31,11 @@
 #include <log/logd.h>
 #include <log/log.h>
 
-#define LOG_BUF_SIZE	1024
+#define LOG_BUF_SIZE 1024
 
 #if FAKE_LOG_DEVICE
 // This will be defined when building for the host.
+#include "fake_log_device.h"
 #define log_open(pathname, flags) fakeLogOpen(pathname, flags)
 #define log_writev(filedes, vector, count) fakeLogWritev(filedes, vector, count)
 #define log_close(filedes) fakeLogClose(filedes)
@@ -50,6 +51,8 @@
 static pthread_mutex_t log_init_lock = PTHREAD_MUTEX_INITIALIZER;
 #endif
 
+#define UNUSED  __attribute__((__unused__))
+
 static int log_fds[(int)LOG_ID_MAX] = { -1, -1, -1, -1 };
 
 /*
@@ -72,7 +75,8 @@
     return (g_log_status == kLogAvailable);
 }
 
-static int __write_to_log_null(log_id_t log_fd, struct iovec *vec, size_t nr)
+static int __write_to_log_null(UNUSED log_id_t log_fd, UNUSED struct iovec *vec,
+        UNUSED size_t nr)
 {
     return -1;
 }
@@ -236,7 +240,7 @@
 }
 
 void __android_log_assert(const char *cond, const char *tag,
-			  const char *fmt, ...)
+                          const char *fmt, ...)
 {
     char buf[LOG_BUF_SIZE];
 
diff --git a/liblog/logprint.c b/liblog/logprint.c
index 508c825..3927c22 100644
--- a/liblog/logprint.c
+++ b/liblog/logprint.c
@@ -1,4 +1,4 @@
-/* //device/libs/cutils/logprint.c
+/*
 **
 ** Copyright 2006, The Android Open Source Project
 **
diff --git a/libnetutils/packet.c b/libnetutils/packet.c
index be4e0db..3cdefb0 100644
--- a/libnetutils/packet.c
+++ b/libnetutils/packet.c
@@ -230,6 +230,8 @@
     packet.udp.check = 0;
     sum = finish_sum(checksum(&packet, nread, 0));
     packet.udp.check = temp;
+    if (!sum)
+        sum = finish_sum(sum);
     if (temp != sum) {
         ALOGW("UDP header checksum failure (0x%x should be 0x%x)", sum, temp);
         return -1;
diff --git a/libnl_2/socket.c b/libnl_2/socket.c
index e94eb9e..f51cf56 100644
--- a/libnl_2/socket.c
+++ b/libnl_2/socket.c
@@ -18,6 +18,7 @@
 
 #include <errno.h>
 #include <unistd.h>
+#include <fcntl.h>
 #include <malloc.h>
 #include <sys/time.h>
 #include <sys/socket.h>
@@ -139,3 +140,14 @@
 {
 	return nl_cb_get(sk->s_cb);
 }
+
+int nl_socket_set_nonblocking(struct nl_sock *sk)
+{
+	if (sk->s_fd == -1)
+		return -NLE_BAD_SOCK;
+
+	if (fcntl(sk->s_fd, F_SETFL, O_NONBLOCK) < 0)
+		return -errno;
+
+	return 0;
+}
diff --git a/libsparse/Android.mk b/libsparse/Android.mk
index 9025cc0..a21e090 100644
--- a/libsparse/Android.mk
+++ b/libsparse/Android.mk
@@ -82,8 +82,8 @@
 
 
 include $(CLEAR_VARS)
-LOCAL_SRC_FILES := simg2simg.c
-LOCAL_MODULE := simg2simg
+LOCAL_SRC_FILES := append2simg.c
+LOCAL_MODULE := append2simg
 LOCAL_STATIC_LIBRARIES := \
     libsparse_host \
     libz
diff --git a/libsparse/append2simg.c b/libsparse/append2simg.c
new file mode 100644
index 0000000..180584f
--- /dev/null
+++ b/libsparse/append2simg.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#define _FILE_OFFSET_BITS 64
+#define _LARGEFILE64_SOURCE 1
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sparse/sparse.h>
+#include "sparse_file.h"
+#include "backed_block.h"
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+#if defined(__APPLE__) && defined(__MACH__)
+#define lseek64 lseek
+#endif
+#if defined(__APPLE__) && defined(__MACH__)
+#define lseek64 lseek
+#define off64_t off_t
+#endif
+
+void usage()
+{
+    fprintf(stderr, "Usage: append2simg <output> <input>\n");
+}
+
+int main(int argc, char *argv[])
+{
+    int output;
+    int output_block;
+    char *output_path;
+    struct sparse_file *sparse_output;
+
+    int input;
+    char *input_path;
+    off64_t input_len;
+
+    if (argc == 3) {
+        output_path = argv[1];
+        input_path = argv[2];
+    } else {
+        usage();
+        exit(-1);
+    }
+
+    output = open(output_path, O_RDWR | O_BINARY);
+    if (output < 0) {
+        fprintf(stderr, "Couldn't open output file (%s)\n", strerror(errno));
+        exit(-1);
+    }
+
+    sparse_output = sparse_file_import_auto(output, true);
+    if (!sparse_output) {
+        fprintf(stderr, "Couldn't import output file\n");
+        exit(-1);
+    }
+
+    input = open(input_path, O_RDONLY | O_BINARY);
+    if (input < 0) {
+        fprintf(stderr, "Couldn't open input file (%s)\n", strerror(errno));
+        exit(-1);
+    }
+
+    input_len = lseek64(input, 0, SEEK_END);
+    if (input_len < 0) {
+        fprintf(stderr, "Couldn't get input file length (%s)\n", strerror(errno));
+        exit(-1);
+    } else if (input_len % sparse_output->block_size) {
+        fprintf(stderr, "Input file is not a multiple of the output file's block size");
+        exit(-1);
+    }
+    lseek64(input, 0, SEEK_SET);
+
+    output_block = sparse_output->len / sparse_output->block_size;
+    if (sparse_file_add_fd(sparse_output, input, 0, input_len, output_block) < 0) {
+        fprintf(stderr, "Couldn't add input file\n");
+        exit(-1);
+    }
+    sparse_output->len += input_len;
+
+    lseek64(output, 0, SEEK_SET);
+    if (sparse_file_write(sparse_output, output, false, true, false) < 0) {
+        fprintf(stderr, "Failed to write sparse file\n");
+        exit(-1);
+    }
+
+    sparse_file_destroy(sparse_output);
+    close(output);
+    close(input);
+    exit(0);
+}
diff --git a/libsysutils/src/FrameworkCommand.cpp b/libsysutils/src/FrameworkCommand.cpp
index 038d87e..0b95a81 100644
--- a/libsysutils/src/FrameworkCommand.cpp
+++ b/libsysutils/src/FrameworkCommand.cpp
@@ -21,11 +21,14 @@
 
 #include <sysutils/FrameworkCommand.h>
 
+#define UNUSED __attribute__((unused))
+
 FrameworkCommand::FrameworkCommand(const char *cmd) {
     mCommand = cmd;
 }
 
-int FrameworkCommand::runCommand(SocketClient *c, int argc, char **argv) {
+int FrameworkCommand::runCommand(SocketClient *c UNUSED, int argc UNUSED,
+                                 char **argv UNUSED) {
     SLOGW("Command %s has no run handler!", getCommand());
     errno = ENOSYS;
     return -1;
diff --git a/libsysutils/src/FrameworkListener.cpp b/libsysutils/src/FrameworkListener.cpp
index 02a401d..a5ffda2 100644
--- a/libsysutils/src/FrameworkListener.cpp
+++ b/libsysutils/src/FrameworkListener.cpp
@@ -27,6 +27,8 @@
 
 static const int CMD_BUF_SIZE = 1024;
 
+#define UNUSED __attribute__((unused))
+
 FrameworkListener::FrameworkListener(const char *socketName, bool withSeq) :
                             SocketListener(socketName, true, withSeq) {
     init(socketName, withSeq);
@@ -37,7 +39,7 @@
     init(socketName, false);
 }
 
-void FrameworkListener::init(const char *socketName, bool withSeq) {
+void FrameworkListener::init(const char *socketName UNUSED, bool withSeq) {
     mCommands = new FrameworkCommandCollection();
     errorRate = 0;
     mCommandCount = 0;
diff --git a/libsysutils/src/SocketListener.cpp b/libsysutils/src/SocketListener.cpp
index 0361641..0296910 100644
--- a/libsysutils/src/SocketListener.cpp
+++ b/libsysutils/src/SocketListener.cpp
@@ -29,8 +29,6 @@
 #include <sysutils/SocketListener.h>
 #include <sysutils/SocketClient.h>
 
-#define LOG_NDEBUG 0
-
 SocketListener::SocketListener(const char *socketName, bool listen) {
     init(socketName, -1, listen, false);
 }
diff --git a/libutils/Android.mk b/libutils/Android.mk
index 720443e..1710d36 100644
--- a/libutils/Android.mk
+++ b/libutils/Android.mk
@@ -116,10 +116,12 @@
 	libcutils
 
 LOCAL_SHARED_LIBRARIES := \
-        libcorkscrew \
+        libbacktrace \
         liblog \
         libdl
 
+include external/stlport/libstlport.mk
+
 LOCAL_MODULE:= libutils
 include $(BUILD_STATIC_LIBRARY)
 
@@ -129,10 +131,12 @@
 LOCAL_MODULE:= libutils
 LOCAL_WHOLE_STATIC_LIBRARIES := libutils
 LOCAL_SHARED_LIBRARIES := \
-        liblog \
+        libbacktrace \
         libcutils \
         libdl \
-        libcorkscrew
+        liblog \
+
+include external/stlport/libstlport.mk
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/libutils/CallStack.cpp b/libutils/CallStack.cpp
index 4ceaa7c..0bfb520 100644
--- a/libutils/CallStack.cpp
+++ b/libutils/CallStack.cpp
@@ -20,93 +20,33 @@
 #include <utils/Printer.h>
 #include <utils/Errors.h>
 #include <utils/Log.h>
-#include <corkscrew/backtrace.h>
+#include <UniquePtr.h>
+
+#include <backtrace/Backtrace.h>
 
 namespace android {
 
-CallStack::CallStack() :
-        mCount(0) {
+CallStack::CallStack() {
 }
 
-CallStack::CallStack(const char* logtag, int32_t ignoreDepth, int32_t maxDepth) {
-    this->update(ignoreDepth+1, maxDepth, CURRENT_THREAD);
+CallStack::CallStack(const char* logtag, int32_t ignoreDepth) {
+    this->update(ignoreDepth+1);
     this->log(logtag);
 }
 
-CallStack::CallStack(const CallStack& rhs) :
-        mCount(rhs.mCount) {
-    if (mCount) {
-        memcpy(mStack, rhs.mStack, mCount * sizeof(backtrace_frame_t));
-    }
-}
-
 CallStack::~CallStack() {
 }
 
-CallStack& CallStack::operator = (const CallStack& rhs) {
-    mCount = rhs.mCount;
-    if (mCount) {
-        memcpy(mStack, rhs.mStack, mCount * sizeof(backtrace_frame_t));
+void CallStack::update(int32_t ignoreDepth, pid_t tid) {
+    mFrameLines.clear();
+
+    UniquePtr<Backtrace> backtrace(Backtrace::Create(BACKTRACE_CURRENT_PROCESS, tid));
+    if (!backtrace->Unwind(ignoreDepth)) {
+        ALOGW("%s: Failed to unwind callstack.", __FUNCTION__);
     }
-    return *this;
-}
-
-bool CallStack::operator == (const CallStack& rhs) const {
-    if (mCount != rhs.mCount)
-        return false;
-    return !mCount || memcmp(mStack, rhs.mStack, mCount * sizeof(backtrace_frame_t)) == 0;
-}
-
-bool CallStack::operator != (const CallStack& rhs) const {
-    return !operator == (rhs);
-}
-
-bool CallStack::operator < (const CallStack& rhs) const {
-    if (mCount != rhs.mCount)
-        return mCount < rhs.mCount;
-    return memcmp(mStack, rhs.mStack, mCount * sizeof(backtrace_frame_t)) < 0;
-}
-
-bool CallStack::operator >= (const CallStack& rhs) const {
-    return !operator < (rhs);
-}
-
-bool CallStack::operator > (const CallStack& rhs) const {
-    if (mCount != rhs.mCount)
-        return mCount > rhs.mCount;
-    return memcmp(mStack, rhs.mStack, mCount * sizeof(backtrace_frame_t)) > 0;
-}
-
-bool CallStack::operator <= (const CallStack& rhs) const {
-    return !operator > (rhs);
-}
-
-const void* CallStack::operator [] (int index) const {
-    if (index >= int(mCount))
-        return 0;
-    return reinterpret_cast<const void*>(mStack[index].absolute_pc);
-}
-
-void CallStack::clear() {
-    mCount = 0;
-}
-
-void CallStack::update(int32_t ignoreDepth, int32_t maxDepth, pid_t tid) {
-    if (maxDepth > MAX_DEPTH) {
-        maxDepth = MAX_DEPTH;
+    for (size_t i = 0; i < backtrace->NumFrames(); i++) {
+      mFrameLines.push_back(String8(backtrace->FormatFrameData(i).c_str()));
     }
-    ssize_t count;
-
-    if (tid >= 0) {
-        count = unwind_backtrace_thread(tid, mStack, ignoreDepth + 1, maxDepth);
-    } else if (tid == CURRENT_THREAD) {
-        count = unwind_backtrace(mStack, ignoreDepth + 1, maxDepth);
-    } else {
-        ALOGE("%s: Invalid tid specified (%d)", __FUNCTION__, tid);
-        count = 0;
-    }
-
-    mCount = count > 0 ? count : 0;
 }
 
 void CallStack::log(const char* logtag, android_LogPriority priority, const char* prefix) const {
@@ -129,16 +69,9 @@
 }
 
 void CallStack::print(Printer& printer) const {
-    backtrace_symbol_t symbols[mCount];
-
-    get_backtrace_symbols(mStack, mCount, symbols);
-    for (size_t i = 0; i < mCount; i++) {
-        char line[MAX_BACKTRACE_LINE_LENGTH];
-        format_backtrace_line(i, &mStack[i], &symbols[i],
-                line, MAX_BACKTRACE_LINE_LENGTH);
-        printer.printLine(line);
+    for (size_t i = 0; i < mFrameLines.size(); i++) {
+        printer.printLine(mFrameLines[i]);
     }
-    free_backtrace_symbols(symbols, mCount);
 }
 
 }; // namespace android
diff --git a/libutils/Printer.cpp b/libutils/Printer.cpp
index ac729e0..263e740 100644
--- a/libutils/Printer.cpp
+++ b/libutils/Printer.cpp
@@ -145,6 +145,7 @@
         return;
     }
 
+    mTarget->append(mPrefix);
     mTarget->append(string);
     mTarget->append("\n");
 }
diff --git a/libutils/ProcessCallStack.cpp b/libutils/ProcessCallStack.cpp
index f9340c5..f837bcb 100644
--- a/libutils/ProcessCallStack.cpp
+++ b/libutils/ProcessCallStack.cpp
@@ -123,7 +123,7 @@
     mTimeUpdated = tm();
 }
 
-void ProcessCallStack::update(int32_t maxDepth) {
+void ProcessCallStack::update() {
     DIR *dp;
     struct dirent *ep;
     struct dirent entry;
@@ -181,14 +181,13 @@
         int ignoreDepth = (selfPid == tid) ? IGNORE_DEPTH_CURRENT_THREAD : 0;
 
         // Update thread's call stacks
-        CallStack& cs = threadInfo.callStack;
-        cs.update(ignoreDepth, maxDepth, tid);
+        threadInfo.callStack.update(ignoreDepth, tid);
 
         // Read/save thread name
         threadInfo.threadName = getThreadName(tid);
 
         ALOGV("%s: Got call stack for tid %d (size %zu)",
-              __FUNCTION__, tid, cs.size());
+              __FUNCTION__, tid, threadInfo.callStack.size());
     }
     if (code != 0) { // returns positive error value on error
         ALOGE("%s: Failed to readdir from %s (errno = %d, '%s')",
@@ -221,13 +220,12 @@
     for (size_t i = 0; i < mThreadMap.size(); ++i) {
         pid_t tid = mThreadMap.keyAt(i);
         const ThreadInfo& threadInfo = mThreadMap.valueAt(i);
-        const CallStack& cs = threadInfo.callStack;
         const String8& threadName = threadInfo.threadName;
 
         printer.printLine("");
         printer.printFormatLine("\"%s\" sysTid=%d", threadName.string(), tid);
 
-        cs.print(csPrinter);
+        threadInfo.callStack.print(csPrinter);
     }
 
     dumpProcessFooter(printer, getpid());
diff --git a/lmkd/lmkd.c b/lmkd/lmkd.c
index 376410b..e489e81 100644
--- a/lmkd/lmkd.c
+++ b/lmkd/lmkd.c
@@ -75,6 +75,10 @@
 #define OOM_ADJUST_MIN (-16)
 #define OOM_ADJUST_MAX 15
 
+/* kernel OOM score values */
+#define OOM_SCORE_ADJ_MIN       (-1000)
+#define OOM_SCORE_ADJ_MAX       1000
+
 static int lowmem_adj[MAX_TARGETS];
 static int lowmem_minfree[MAX_TARGETS];
 static int lowmem_targets_size;
@@ -116,6 +120,14 @@
 /* PAGE_SIZE / 1024 */
 static long page_k;
 
+static int lowmem_oom_adj_to_oom_score_adj(int oom_adj)
+{
+    if (oom_adj == OOM_ADJUST_MAX)
+        return OOM_SCORE_ADJ_MAX;
+    else
+        return (oom_adj * OOM_SCORE_ADJ_MAX) / -OOM_DISABLE;
+}
+
 static struct proc *pid_lookup(int pid) {
     struct proc *procp;
 
@@ -219,8 +231,8 @@
         return;
     }
 
-    snprintf(path, sizeof(path), "/proc/%d/oom_adj", pid);
-    snprintf(val, sizeof(val), "%d", oomadj);
+    snprintf(path, sizeof(path), "/proc/%d/oom_score_adj", pid);
+    snprintf(val, sizeof(val), "%d", lowmem_oom_adj_to_oom_score_adj(oomadj));
     writefilestring(path, val);
 
     if (use_inkernel_interface)
diff --git a/logcat/logcat.cpp b/logcat/logcat.cpp
index d44c679..b6ca171 100644
--- a/logcat/logcat.cpp
+++ b/logcat/logcat.cpp
@@ -1,5 +1,6 @@
-// Copyright 2006 The Android Open Source Project
+// Copyright 2006-2013 The Android Open Source Project
 
+#include <log/log.h>
 #include <log/logger.h>
 #include <log/logd.h>
 #include <log/logprint.h>
@@ -24,65 +25,27 @@
 #define DEFAULT_MAX_ROTATED_LOGS 4
 
 static AndroidLogFormat * g_logformat;
-static bool g_nonblock = false;
-static int g_tail_lines = 0;
 
 /* logd prefixes records with a length field */
 #define RECORD_LENGTH_FIELD_SIZE_BYTES sizeof(uint32_t)
 
-#define LOG_FILE_DIR    "/dev/log/"
-
-struct queued_entry_t {
-    union {
-        unsigned char buf[LOGGER_ENTRY_MAX_LEN + 1] __attribute__((aligned(4)));
-        struct logger_entry entry __attribute__((aligned(4)));
-    };
-    queued_entry_t* next;
-
-    queued_entry_t() {
-        next = NULL;
-    }
-};
-
-static int cmp(queued_entry_t* a, queued_entry_t* b) {
-    int n = a->entry.sec - b->entry.sec;
-    if (n != 0) {
-        return n;
-    }
-    return a->entry.nsec - b->entry.nsec;
-}
-
 struct log_device_t {
-    char* device;
+    const char* device;
     bool binary;
-    int fd;
+    struct logger *logger;
+    struct logger_list *logger_list;
     bool printed;
     char label;
 
-    queued_entry_t* queue;
     log_device_t* next;
 
-    log_device_t(char* d, bool b, char l) {
+    log_device_t(const char* d, bool b, char l) {
         device = d;
         binary = b;
         label = l;
-        queue = NULL;
         next = NULL;
         printed = false;
     }
-
-    void enqueue(queued_entry_t* entry) {
-        if (this->queue == NULL) {
-            this->queue = entry;
-        } else {
-            queued_entry_t** e = &this->queue;
-            while (*e && cmp(entry, *e) >= 0) {
-                e = &((*e)->next);
-            }
-            entry->next = *e;
-            *e = entry;
-        }
-    }
 };
 
 namespace android {
@@ -147,17 +110,14 @@
 
 }
 
-void printBinary(struct logger_entry *buf)
+void printBinary(struct log_msg *buf)
 {
-    size_t size = sizeof(logger_entry) + buf->len;
-    int ret;
-    
-    do {
-        ret = write(g_outFD, buf, size);
-    } while (ret < 0 && errno == EINTR);
+    size_t size = buf->len();
+
+    TEMP_FAILURE_RETRY(write(g_outFD, buf, size));
 }
 
-static void processBuffer(log_device_t* dev, struct logger_entry *buf)
+static void processBuffer(log_device_t* dev, struct log_msg *buf)
 {
     int bytesWritten = 0;
     int err;
@@ -165,12 +125,14 @@
     char binaryMsgBuf[1024];
 
     if (dev->binary) {
-        err = android_log_processBinaryLogBuffer(buf, &entry, g_eventTagMap,
-                binaryMsgBuf, sizeof(binaryMsgBuf));
+        err = android_log_processBinaryLogBuffer(&buf->entry_v1, &entry,
+                                                 g_eventTagMap,
+                                                 binaryMsgBuf,
+                                                 sizeof(binaryMsgBuf));
         //printf(">>> pri=%d len=%d msg='%s'\n",
         //    entry.priority, entry.messageLen, entry.message);
     } else {
-        err = android_log_processLogBuffer(buf, &entry);
+        err = android_log_processLogBuffer(&buf->entry_v1, &entry);
     }
     if (err < 0) {
         goto error;
@@ -197,7 +159,7 @@
 
     g_outByteCount += bytesWritten;
 
-    if (g_logRotateSizeKBytes > 0 
+    if (g_logRotateSizeKBytes > 0
         && (g_outByteCount / 1024) >= g_logRotateSizeKBytes
     ) {
         rotateLogs();
@@ -208,20 +170,13 @@
     return;
 }
 
-static void chooseFirst(log_device_t* dev, log_device_t** firstdev) {
-    for (*firstdev = NULL; dev != NULL; dev = dev->next) {
-        if (dev->queue != NULL && (*firstdev == NULL || cmp(dev->queue, (*firstdev)->queue) < 0)) {
-            *firstdev = dev;
-        }
-    }
-}
-
 static void maybePrintStart(log_device_t* dev) {
     if (!dev->printed) {
         dev->printed = true;
         if (g_devCount > 1 && !g_printBinary) {
             char buf[1024];
-            snprintf(buf, sizeof(buf), "--------- beginning of %s\n", dev->device);
+            snprintf(buf, sizeof(buf), "--------- beginning of %s\n",
+                     dev->device);
             if (write(g_outFD, buf, strlen(buf)) < 0) {
                 perror("output error");
                 exit(-1);
@@ -230,145 +185,6 @@
     }
 }
 
-static void skipNextEntry(log_device_t* dev) {
-    maybePrintStart(dev);
-    queued_entry_t* entry = dev->queue;
-    dev->queue = entry->next;
-    delete entry;
-}
-
-static void printNextEntry(log_device_t* dev) {
-    maybePrintStart(dev);
-    if (g_printBinary) {
-        printBinary(&dev->queue->entry);
-    } else {
-        processBuffer(dev, &dev->queue->entry);
-    }
-    skipNextEntry(dev);
-}
-
-static void readLogLines(log_device_t* devices)
-{
-    log_device_t* dev;
-    int max = 0;
-    int ret;
-    int queued_lines = 0;
-    bool sleep = false;
-
-    int result;
-    fd_set readset;
-
-    for (dev=devices; dev; dev = dev->next) {
-        if (dev->fd > max) {
-            max = dev->fd;
-        }
-    }
-
-    while (1) {
-        do {
-            timeval timeout = { 0, 5000 /* 5ms */ }; // If we oversleep it's ok, i.e. ignore EINTR.
-            FD_ZERO(&readset);
-            for (dev=devices; dev; dev = dev->next) {
-                FD_SET(dev->fd, &readset);
-            }
-            result = select(max + 1, &readset, NULL, NULL, sleep ? NULL : &timeout);
-        } while (result == -1 && errno == EINTR);
-
-        if (result >= 0) {
-            for (dev=devices; dev; dev = dev->next) {
-                if (FD_ISSET(dev->fd, &readset)) {
-                    queued_entry_t* entry = new queued_entry_t();
-                    /* NOTE: driver guarantees we read exactly one full entry */
-                    ret = read(dev->fd, entry->buf, LOGGER_ENTRY_MAX_LEN);
-                    if (ret < 0) {
-                        if (errno == EINTR) {
-                            delete entry;
-                            goto next;
-                        }
-                        if (errno == EAGAIN) {
-                            delete entry;
-                            break;
-                        }
-                        perror("logcat read");
-                        exit(EXIT_FAILURE);
-                    }
-                    else if (!ret) {
-                        fprintf(stderr, "read: Unexpected EOF!\n");
-                        exit(EXIT_FAILURE);
-                    }
-                    else if (entry->entry.len != ret - sizeof(struct logger_entry)) {
-                        fprintf(stderr, "read: unexpected length. Expected %d, got %d\n",
-                                entry->entry.len, ret - sizeof(struct logger_entry));
-                        exit(EXIT_FAILURE);
-                    }
-
-                    entry->entry.msg[entry->entry.len] = '\0';
-
-                    dev->enqueue(entry);
-                    ++queued_lines;
-                }
-            }
-
-            if (result == 0) {
-                // we did our short timeout trick and there's nothing new
-                // print everything we have and wait for more data
-                sleep = true;
-                while (true) {
-                    chooseFirst(devices, &dev);
-                    if (dev == NULL) {
-                        break;
-                    }
-                    if (g_tail_lines == 0 || queued_lines <= g_tail_lines) {
-                        printNextEntry(dev);
-                    } else {
-                        skipNextEntry(dev);
-                    }
-                    --queued_lines;
-                }
-
-                // the caller requested to just dump the log and exit
-                if (g_nonblock) {
-                    return;
-                }
-            } else {
-                // print all that aren't the last in their list
-                sleep = false;
-                while (g_tail_lines == 0 || queued_lines > g_tail_lines) {
-                    chooseFirst(devices, &dev);
-                    if (dev == NULL || dev->queue->next == NULL) {
-                        break;
-                    }
-                    if (g_tail_lines == 0) {
-                        printNextEntry(dev);
-                    } else {
-                        skipNextEntry(dev);
-                    }
-                    --queued_lines;
-                }
-            }
-        }
-next:
-        ;
-    }
-}
-
-static int clearLog(int logfd)
-{
-    return ioctl(logfd, LOGGER_FLUSH_LOG);
-}
-
-/* returns the total size of the log's ring buffer */
-static int getLogSize(int logfd)
-{
-    return ioctl(logfd, LOGGER_GET_LOG_BUF_SIZE);
-}
-
-/* returns the readable size of the log's ring buffer (that is, amount of the log consumed) */
-static int getLogReadableSize(int logfd)
-{
-    return ioctl(logfd, LOGGER_GET_LOG_LEN);
-}
-
 static void setupOutput()
 {
 
@@ -465,6 +281,8 @@
     log_device_t* devices = NULL;
     log_device_t* dev;
     bool needBinary = false;
+    struct logger_list *logger_list;
+    int tail_lines = 0;
 
     g_logformat = android_log_format_new();
 
@@ -488,7 +306,7 @@
         }
 
         switch(ret) {
-            case 's': 
+            case 's':
                 // default to all silent
                 android_log_addFilterRule(g_logformat, "*:s");
             break;
@@ -499,12 +317,12 @@
             break;
 
             case 'd':
-                g_nonblock = true;
+                mode = O_RDONLY | O_NDELAY;
             break;
 
             case 't':
-                g_nonblock = true;
-                g_tail_lines = atoi(optarg);
+                mode = O_RDONLY | O_NDELAY;
+                tail_lines = atoi(optarg);
             break;
 
             case 'g':
@@ -512,10 +330,6 @@
             break;
 
             case 'b': {
-                char* buf = (char*) malloc(strlen(LOG_FILE_DIR) + strlen(optarg) + 1);
-                strcpy(buf, LOG_FILE_DIR);
-                strcat(buf, optarg);
-
                 bool binary = strcmp(optarg, "events") == 0;
                 if (binary) {
                     needBinary = true;
@@ -526,9 +340,9 @@
                     while (dev->next) {
                         dev = dev->next;
                     }
-                    dev->next = new log_device_t(buf, binary, optarg[0]);
+                    dev->next = new log_device_t(optarg, binary, optarg[0]);
                 } else {
-                    devices = new log_device_t(buf, binary, optarg[0]);
+                    devices = new log_device_t(optarg, binary, optarg[0]);
                 }
                 android::g_devCount++;
             }
@@ -546,8 +360,8 @@
             break;
 
             case 'r':
-                if (optarg == NULL) {                
-                    android::g_logRotateSizeKBytes 
+                if (optarg == NULL) {
+                    android::g_logRotateSizeKBytes
                                 = DEFAULT_LOG_ROTATE_SIZE_KBYTES;
                 } else {
                     long logRotateSize;
@@ -659,19 +473,15 @@
     }
 
     if (!devices) {
-        devices = new log_device_t(strdup("/dev/"LOGGER_LOG_MAIN), false, 'm');
+        devices = new log_device_t("main", false, 'm');
         android::g_devCount = 1;
-        int accessmode =
-                  (mode & O_RDONLY) ? R_OK : 0
-                | (mode & O_WRONLY) ? W_OK : 0;
-        // only add this if it's available
-        if (0 == access("/dev/"LOGGER_LOG_SYSTEM, accessmode)) {
-            devices->next = new log_device_t(strdup("/dev/"LOGGER_LOG_SYSTEM), false, 's');
+        if (android_name_to_log_id("system") == LOG_ID_SYSTEM) {
+            devices->next = new log_device_t("system", false, 's');
             android::g_devCount++;
         }
     }
 
-    if (android::g_logRotateSizeKBytes != 0 
+    if (android::g_logRotateSizeKBytes != 0
         && android::g_outputFileName == NULL
     ) {
         fprintf(stderr,"-r requires -f as well\n");
@@ -688,7 +498,7 @@
             err = setLogFormat(logFormat);
 
             if (err < 0) {
-                fprintf(stderr, "invalid format in ANDROID_PRINTF_LOG '%s'\n", 
+                fprintf(stderr, "invalid format in ANDROID_PRINTF_LOG '%s'\n",
                                     logFormat);
             }
         }
@@ -707,8 +517,8 @@
         if (env_tags_orig != NULL) {
             err = android_log_addFilterString(g_logformat, env_tags_orig);
 
-            if (err < 0) { 
-                fprintf(stderr, "Invalid filter expression in" 
+            if (err < 0) {
+                fprintf(stderr, "Invalid filter expression in"
                                     " ANDROID_LOG_TAGS\n");
                 android::show_help(argv[0]);
                 exit(-1);
@@ -719,7 +529,7 @@
         for (int i = optind ; i < argc ; i++) {
             err = android_log_addFilterString(g_logformat, argv[i]);
 
-            if (err < 0) { 
+            if (err < 0) {
                 fprintf (stderr, "Invalid filter expression '%s'\n", argv[i]);
                 android::show_help(argv[0]);
                 exit(-1);
@@ -728,19 +538,21 @@
     }
 
     dev = devices;
+    logger_list = android_logger_list_alloc(mode, tail_lines, 0);
     while (dev) {
-        dev->fd = open(dev->device, mode);
-        if (dev->fd < 0) {
-            fprintf(stderr, "Unable to open log device '%s': %s\n",
-                dev->device, strerror(errno));
+        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::clearLog(dev->fd);
+            ret = android_logger_clear(dev->logger);
             if (ret) {
-                perror("ioctl");
+                perror("clearLog");
                 exit(EXIT_FAILURE);
             }
         }
@@ -748,15 +560,15 @@
         if (getLogSize) {
             int size, readable;
 
-            size = android::getLogSize(dev->fd);
+            size = android_logger_get_log_size(dev->logger);
             if (size < 0) {
-                perror("ioctl");
+                perror("getLogSize");
                 exit(EXIT_FAILURE);
             }
 
-            readable = android::getLogReadableSize(dev->fd);
+            readable = android_logger_get_log_readable_size(dev->logger);
             if (readable < 0) {
-                perror("ioctl");
+                perror("getLogReadableSize");
                 exit(EXIT_FAILURE);
             }
 
@@ -783,7 +595,51 @@
     if (needBinary)
         android::g_eventTagMap = android_openEventTagMap(EVENT_TAG_MAP_FILE);
 
-    android::readLogLines(devices);
+    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");
+            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;
 }
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 275cee6..5aae3fb 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -11,7 +11,7 @@
 
 on early-init
     # Set init and its forked children's oom_adj.
-    write /proc/1/oom_adj -16
+    write /proc/1/oom_score_adj -1000
 
     # Apply strict SELinux checking of PROT_EXEC on mmap/mprotect calls.
     write /sys/fs/selinux/checkreqprot 0
@@ -432,11 +432,6 @@
     critical
     seclabel u:r:healthd:s0
 
-service healthd-charger /sbin/healthd -n
-    class charger
-    critical
-    seclabel u:r:healthd:s0
-
 service console /system/bin/sh
     class core
     console
@@ -473,6 +468,7 @@
     onrestart restart zygote
     onrestart restart media
     onrestart restart surfaceflinger
+    onrestart restart inputflinger
     onrestart restart drm
 
 service vold /system/bin/vold
@@ -502,6 +498,12 @@
     group graphics drmrpc
     onrestart restart zygote
 
+service inputflinger /system/bin/inputflinger
+    class main
+    user system
+    group input
+    onrestart restart zygote
+
 service zygote /system/bin/app_process -Xzygote /system/bin --zygote --start-system-server
     class main
     socket zygote stream 660 root system
diff --git a/toolbox/Android.mk b/toolbox/Android.mk
index 75ce53f..c5890b2 100644
--- a/toolbox/Android.mk
+++ b/toolbox/Android.mk
@@ -69,7 +69,8 @@
 	swapon \
 	swapoff \
 	mkswap \
-	readlink
+	readlink \
+	nohup
 
 ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
 TOOLS += r
diff --git a/toolbox/getevent.c b/toolbox/getevent.c
index 5f5e16b..f435a1c 100644
--- a/toolbox/getevent.c
+++ b/toolbox/getevent.c
@@ -295,6 +295,7 @@
 {
     int version;
     int fd;
+    int clkid = CLOCK_MONOTONIC;
     struct pollfd *new_ufds;
     char **new_device_names;
     char name[80];
@@ -335,6 +336,11 @@
         idstr[0] = '\0';
     }
 
+    if (ioctl(fd, EVIOCSCLOCKID, &clkid) != 0) {
+        fprintf(stderr, "Can't enable monotonic clock reporting: %s\n", strerror(errno));
+        // a non-fatal error
+    }
+
     new_ufds = realloc(ufds, sizeof(ufds[0]) * (nfds + 1));
     if(new_ufds == NULL) {
         fprintf(stderr, "out of memory\n");
@@ -470,9 +476,9 @@
     return 0;
 }
 
-static void usage(int argc, char *argv[])
+static void usage(char *name)
 {
-    fprintf(stderr, "Usage: %s [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-d] [-p] [-i] [-l] [-q] [-c count] [-r] [device]\n", argv[0]);
+    fprintf(stderr, "Usage: %s [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-d] [-p] [-i] [-l] [-q] [-c count] [-r] [device]\n", name);
     fprintf(stderr, "    -t: show time stamps\n");
     fprintf(stderr, "    -n: don't print newlines\n");
     fprintf(stderr, "    -s: print switch states for given bits\n");
@@ -570,7 +576,7 @@
             fprintf(stderr, "%s: invalid option -%c\n",
                 argv[0], optopt);
         case 'h':
-            usage(argc, argv);
+            usage(argv[0]);
             exit(1);
         }
     } while (1);
@@ -582,7 +588,7 @@
         optind++;
     }
     if (optind != argc) {
-        usage(argc, argv);
+        usage(argv[0]);
         exit(1);
     }
     nfds = 1;
diff --git a/toolbox/ioctl.c b/toolbox/ioctl.c
index fb555d2..fd24885 100644
--- a/toolbox/ioctl.c
+++ b/toolbox/ioctl.c
@@ -63,10 +63,14 @@
         exit(1);
     }
 
-    fd = open(argv[optind], O_RDWR | O_SYNC);
-    if (fd < 0) {
-        fprintf(stderr, "cannot open %s\n", argv[optind]);
-        return 1;
+    if (!strcmp(argv[optind], "-")) {
+        fd = STDIN_FILENO;
+    } else {
+        fd = open(argv[optind], read_only ? O_RDONLY : (O_RDWR | O_SYNC));
+        if (fd < 0) {
+            fprintf(stderr, "cannot open %s\n", argv[optind]);
+            return 1;
+        }
     }
     optind++;
     
diff --git a/toolbox/nohup.c b/toolbox/nohup.c
new file mode 100644
index 0000000..363999d
--- /dev/null
+++ b/toolbox/nohup.c
@@ -0,0 +1,26 @@
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int nohup_main(int argc, char *argv[])
+{
+    if (argc < 2) {
+        fprintf(stderr, "Usage: %s [-n] program args...\n", argv[0]);
+        return EXIT_FAILURE;
+    }
+    signal(SIGHUP, SIG_IGN);
+    argv++;
+    if (strcmp(argv[0], "-n") == 0) {
+        argv++;
+        signal(SIGINT, SIG_IGN);
+        signal(SIGSTOP, SIG_IGN);
+        signal(SIGTTIN, SIG_IGN);
+        signal(SIGTTOU, SIG_IGN);
+        signal(SIGQUIT, SIG_IGN);
+        signal(SIGTERM, SIG_IGN);
+    }
+    execvp(argv[0], argv);
+    perror(argv[0]);
+    return EXIT_FAILURE;
+}
diff --git a/toolbox/ps.c b/toolbox/ps.c
index 7c35ccb..de141fc 100644
--- a/toolbox/ps.c
+++ b/toolbox/ps.c
@@ -28,6 +28,7 @@
 #define SHOW_POLICY 4
 #define SHOW_CPU  8
 #define SHOW_MACLABEL 16
+#define SHOW_NUMERIC_UID 32
 
 static int display_flags = 0;
 
@@ -45,7 +46,7 @@
     unsigned utime, stime;
     int prio, nice, rtprio, sched, psr;
     struct passwd *pw;
-    
+
     sprintf(statline, "/proc/%d", pid);
     stat(statline, &stats);
 
@@ -67,7 +68,7 @@
         }
         cmdline[r] = 0;
     }
-    
+
     fd = open(statline, O_RDONLY);
     if(fd == 0) return -1;
     r = read(fd, statline, 1023);
@@ -89,7 +90,7 @@
     nexttok(&ptr); // pgrp
     nexttok(&ptr); // sid
     tty = atoi(nexttok(&ptr));
-    
+
     nexttok(&ptr); // tpgid
     nexttok(&ptr); // flags
     nexttok(&ptr); // minflt
@@ -129,21 +130,21 @@
     psr = atoi(nexttok(&ptr)); // processor
     rtprio = atoi(nexttok(&ptr)); // rt_priority
     sched = atoi(nexttok(&ptr)); // scheduling policy
-    
+
     tty = atoi(nexttok(&ptr));
-    
+
     if(tid != 0) {
         ppid = pid;
         pid = tid;
     }
 
     pw = getpwuid(stats.st_uid);
-    if(pw == 0) {
+    if(pw == 0 || (display_flags & SHOW_NUMERIC_UID)) {
         sprintf(user,"%d",(int)stats.st_uid);
     } else {
         strcpy(user,pw->pw_name);
     }
-    
+
     if(!namefilter || !strncmp(name, namefilter, strlen(namefilter))) {
         if (display_flags & SHOW_MACLABEL) {
             fd = open(macline, O_RDONLY);
@@ -189,7 +190,7 @@
     sprintf(tmp,"/proc/%d/task",pid);
     d = opendir(tmp);
     if(d == 0) return;
-    
+
     while((de = readdir(d)) != 0){
         if(isdigit(de->d_name[0])){
             int tid = atoi(de->d_name);
@@ -197,7 +198,7 @@
             ps_line(pid, tid, namefilter);
         }
     }
-    closedir(d);    
+    closedir(d);
 }
 
 int ps_main(int argc, char **argv)
@@ -207,13 +208,15 @@
     char *namefilter = 0;
     int pidfilter = 0;
     int threads = 0;
-    
+
     d = opendir("/proc");
     if(d == 0) return -1;
 
     while(argc > 1){
         if(!strcmp(argv[1],"-t")) {
             threads = 1;
+        } else if(!strcmp(argv[1],"-n")) {
+            display_flags |= SHOW_NUMERIC_UID;
         } else if(!strcmp(argv[1],"-x")) {
             display_flags |= SHOW_TIME;
         } else if(!strcmp(argv[1], "-Z")) {