diff --git a/ext4_utils/ext2simg.c b/ext4_utils/ext2simg.c
index 1531f0b..e5b36c4 100644
--- a/ext4_utils/ext2simg.c
+++ b/ext4_utils/ext2simg.c
@@ -22,7 +22,6 @@
 #include <sys/types.h>
 #include <sys/mman.h>
 #include <fcntl.h>
-#include <inttypes.h>
 #include <libgen.h>
 #include <unistd.h>
 
@@ -54,66 +53,6 @@
 	fprintf(stderr, "  -S don't use sparse output format\n");
 }
 
-static int read_ext(int fd)
-{
-	off64_t ret;
-	struct ext4_super_block sb;
-
-	ret = lseek64(fd, 1024, SEEK_SET);
-	if (ret < 0)
-		critical_error_errno("failed to seek to superblock");
-
-	ret = read(fd, &sb, sizeof(sb));
-	if (ret < 0)
-		critical_error_errno("failed to read superblock");
-	if (ret != sizeof(sb))
-		critical_error("failed to read all of superblock");
-
-	ext4_parse_sb_info(&sb);
-
-	ret = lseek64(fd, info.len, SEEK_SET);
-	if (ret < 0)
-		critical_error_errno("failed to seek to end of input image");
-
-	ret = lseek64(fd, info.block_size * (aux_info.first_data_block + 1), SEEK_SET);
-	if (ret < 0)
-		critical_error_errno("failed to seek to block group descriptors");
-
-	ret = read(fd, aux_info.bg_desc, info.block_size * aux_info.bg_desc_blocks);
-	if (ret < 0)
-		critical_error_errno("failed to read block group descriptors");
-	if (ret != (int)info.block_size * (int)aux_info.bg_desc_blocks)
-		critical_error("failed to read all of block group descriptors");
-
-	if (verbose) {
-		printf("Found filesystem with parameters:\n");
-		printf("    Size: %"PRIu64"\n", info.len);
-		printf("    Block size: %d\n", info.block_size);
-		printf("    Blocks per group: %d\n", info.blocks_per_group);
-		printf("    Inodes per group: %d\n", info.inodes_per_group);
-		printf("    Inode size: %d\n", info.inode_size);
-		printf("    Label: %s\n", info.label);
-		printf("    Blocks: %"PRIu64"\n", aux_info.len_blocks);
-		printf("    Block groups: %d\n", aux_info.groups);
-		printf("    Reserved block group size: %d\n", info.bg_desc_reserve_blocks);
-		printf("    Used %d/%d inodes and %d/%d blocks\n",
-				aux_info.sb->s_inodes_count - aux_info.sb->s_free_inodes_count,
-				aux_info.sb->s_inodes_count,
-				aux_info.sb->s_blocks_count_lo - aux_info.sb->s_free_blocks_count_lo,
-				aux_info.sb->s_blocks_count_lo);
-	}
-
-	return 0;
-}
-
-static int bitmap_get_bit(u8 *bitmap, u32 bit)
-{
-	if (bitmap[bit / 8] & 1 << (bit % 8))
-		return 1;
-
-	return 0;
-}
-
 static int build_sparse_ext(int fd, const char *filename)
 {
 	unsigned int i;
@@ -229,7 +168,7 @@
 	if (infd < 0)
 		critical_error_errno("failed to open input image");
 
-	read_ext(infd);
+	read_ext(infd, verbose);
 
 	ext4_sparse_file = sparse_file_new(info.block_size, info.len);
 
diff --git a/ext4_utils/ext4_utils.c b/ext4_utils/ext4_utils.c
index 2c79da9..22fbd83 100644
--- a/ext4_utils/ext4_utils.c
+++ b/ext4_utils/ext4_utils.c
@@ -23,6 +23,7 @@
 #include <sparse/sparse.h>
 
 #include <fcntl.h>
+#include <inttypes.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <stddef.h>
@@ -60,6 +61,21 @@
 	return (a == b) ? 1 : 0;
 }
 
+int bitmap_get_bit(u8 *bitmap, u32 bit)
+{
+	if (bitmap[bit / 8] & (1 << (bit % 8)))
+		return 1;
+
+	return 0;
+}
+
+void bitmap_clear_bit(u8 *bitmap, u32 bit)
+{
+	bitmap[bit / 8] &= ~(1 << (bit % 8));
+
+	return;
+}
+
 /* Returns 1 if the bg contains a backup superblock.  On filesystems with
    the sparse_super feature, only block groups 0, 1, and powers of 3, 5,
    and 7 have backup superblocks.  Otherwise, all block groups have backup
@@ -79,6 +95,38 @@
 	return 0;
 }
 
+/* Function to read the primary superblock */
+void read_sb(int fd, struct ext4_super_block *sb)
+{
+	off64_t ret;
+
+	ret = lseek64(fd, 1024, SEEK_SET);
+	if (ret < 0)
+		critical_error_errno("failed to seek to superblock");
+
+	ret = read(fd, sb, sizeof(*sb));
+	if (ret < 0)
+		critical_error_errno("failed to read superblock");
+	if (ret != sizeof(*sb))
+		critical_error("failed to read all of superblock");
+}
+
+/* Function to write a primary or backup superblock at a given offset */
+void write_sb(int fd, unsigned long long offset, struct ext4_super_block *sb)
+{
+	off64_t ret;
+
+	ret = lseek64(fd, offset, SEEK_SET);
+	if (ret < 0)
+		critical_error_errno("failed to seek to superblock");
+
+	ret = write(fd, sb, sizeof(*sb));
+	if (ret < 0)
+		critical_error_errno("failed to write superblock");
+	if (ret != sizeof(*sb))
+		critical_error("failed to write all of superblock");
+}
+
 /* Write the filesystem image to a file */
 void write_ext4_image(int fd, int gz, int sparse, int crc)
 {
@@ -435,3 +483,48 @@
 
 	return num;
 }
+
+int read_ext(int fd, int verbose)
+{
+	off64_t ret;
+	struct ext4_super_block sb;
+
+	read_sb(fd, &sb);
+
+	ext4_parse_sb_info(&sb);
+
+	ret = lseek64(fd, info.len, SEEK_SET);
+	if (ret < 0)
+		critical_error_errno("failed to seek to end of input image");
+
+	ret = lseek64(fd, info.block_size * (aux_info.first_data_block + 1), SEEK_SET);
+	if (ret < 0)
+		critical_error_errno("failed to seek to block group descriptors");
+
+	ret = read(fd, aux_info.bg_desc, info.block_size * aux_info.bg_desc_blocks);
+	if (ret < 0)
+		critical_error_errno("failed to read block group descriptors");
+	if (ret != (int)info.block_size * (int)aux_info.bg_desc_blocks)
+		critical_error("failed to read all of block group descriptors");
+
+	if (verbose) {
+		printf("Found filesystem with parameters:\n");
+		printf("    Size: %"PRIu64"\n", info.len);
+		printf("    Block size: %d\n", info.block_size);
+		printf("    Blocks per group: %d\n", info.blocks_per_group);
+		printf("    Inodes per group: %d\n", info.inodes_per_group);
+		printf("    Inode size: %d\n", info.inode_size);
+		printf("    Label: %s\n", info.label);
+		printf("    Blocks: %"PRIu64"\n", aux_info.len_blocks);
+		printf("    Block groups: %d\n", aux_info.groups);
+		printf("    Reserved block group size: %d\n", info.bg_desc_reserve_blocks);
+		printf("    Used %d/%d inodes and %d/%d blocks\n",
+			aux_info.sb->s_inodes_count - aux_info.sb->s_free_inodes_count,
+			aux_info.sb->s_inodes_count,
+			aux_info.sb->s_blocks_count_lo - aux_info.sb->s_free_blocks_count_lo,
+			aux_info.sb->s_blocks_count_lo);
+	}
+
+	return 0;
+}
+
diff --git a/ext4_utils/ext4_utils.h b/ext4_utils/ext4_utils.h
index 447d416..f87a0de 100644
--- a/ext4_utils/ext4_utils.h
+++ b/ext4_utils/ext4_utils.h
@@ -130,7 +130,11 @@
 	return i - 1;
 }
 
+int bitmap_get_bit(u8 *bitmap, u32 bit);
+void bitmap_clear_bit(u8 *bitmap, u32 bit);
 int ext4_bg_has_super_block(int bg);
+void read_sb(int fd, struct ext4_super_block *sb);
+void write_sb(int fd, unsigned long long offset, struct ext4_super_block *sb);
 void write_ext4_image(int fd, int gz, int sparse, int crc);
 void ext4_create_fs_aux_info(void);
 void ext4_free_fs_aux_info(void);
@@ -146,14 +150,16 @@
 u16 ext4_crc16(u16 crc_in, const void *buf, int size);
 
 typedef void (*fs_config_func_t)(const char *path, int dir, unsigned *uid, unsigned *gid,
-        unsigned *mode, uint64_t *capabilities);
+		unsigned *mode, uint64_t *capabilities);
 
 struct selabel_handle;
 
 int make_ext4fs_internal(int fd, const char *directory,
-                         const char *mountpoint, fs_config_func_t fs_config_func, int gzip,
-                         int sparse, int crc, int wipe,
-                         struct selabel_handle *sehnd, int verbose);
+						 const char *mountpoint, fs_config_func_t fs_config_func, int gzip,
+						 int sparse, int crc, int wipe,
+						 struct selabel_handle *sehnd, int verbose, time_t fixed_time);
+
+int read_ext(int fd, int verbose);
 
 #ifdef __cplusplus
 }
diff --git a/ext4_utils/ext4fixup.c b/ext4_utils/ext4fixup.c
index 7beeefb..0e51765 100644
--- a/ext4_utils/ext4fixup.c
+++ b/ext4_utils/ext4fixup.c
@@ -25,7 +25,6 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <fcntl.h>
-#include <inttypes.h>
 #include <unistd.h>
 
 #ifndef USE_MINGW
@@ -84,42 +83,6 @@
     return (group * new_inodes_per_group) + offset + 1;
 }
 
-/* Function to read the primary superblock */
-static void read_sb(int fd, struct ext4_super_block *sb)
-{
-    off64_t ret;
-
-    ret = lseek64(fd, 1024, SEEK_SET);
-    if (ret < 0)
-        critical_error_errno("failed to seek to superblock");
-
-    ret = read(fd, sb, sizeof(*sb));
-    if (ret < 0)
-        critical_error_errno("failed to read superblock");
-    if (ret != sizeof(*sb))
-        critical_error("failed to read all of superblock");
-}
-
-/* Function to write a primary or backup superblock at a given offset */
-static void write_sb(int fd, unsigned long long offset, struct ext4_super_block *sb)
-{
-    off64_t ret;
-
-    if (no_write) {
-        return;
-    }
-
-    ret = lseek64(fd, offset, SEEK_SET);
-    if (ret < 0)
-        critical_error_errno("failed to seek to superblock");
-
-    ret = write(fd, sb, sizeof(*sb));
-    if (ret < 0)
-        critical_error_errno("failed to write superblock");
-    if (ret != sizeof(*sb))
-        critical_error("failed to write all of superblock");
-}
-
 static int get_fs_fixup_state(int fd)
 {
     unsigned long long magic;
@@ -192,64 +155,9 @@
         /* we are done, so make the filesystem mountable again */
         sb.s_desc_size &= ~1;
     }
-    write_sb(fd, 1024, &sb);
 
-    return 0;
-}
-
-static int read_ext(int fd)
-{
-    off64_t ret;
-    struct ext4_super_block sb;
-
-    read_sb(fd, &sb);
-
-    ext4_parse_sb_info(&sb);
-
-    if (info.feat_incompat & EXT4_FEATURE_INCOMPAT_RECOVER) {
-        critical_error("Filesystem needs recovery first, mount and unmount to do that\n");
-    }
-
-    /* Clear the low bit which is set while this tool is in progress.
-     * If the tool crashes, it will still be set when we restart.
-     * The low bit is set to make the filesystem unmountable while
-     * it is being fixed up.  Also allow 0, which means the old ext2
-     * size is in use.
-     */
-    if (((sb.s_desc_size & ~1) != sizeof(struct ext2_group_desc)) &&
-        ((sb.s_desc_size & ~1) != 0))
-        critical_error("error: bg_desc_size != sizeof(struct ext2_group_desc)\n");
-
-    ret = lseek64(fd, info.len, SEEK_SET);
-    if (ret < 0)
-        critical_error_errno("failed to seek to end of input image");
-
-    ret = lseek64(fd, info.block_size * (aux_info.first_data_block + 1), SEEK_SET);
-    if (ret < 0)
-        critical_error_errno("failed to seek to block group descriptors");
-
-    ret = read(fd, aux_info.bg_desc, info.block_size * aux_info.bg_desc_blocks);
-    if (ret < 0)
-        critical_error_errno("failed to read block group descriptors");
-    if (ret != (int)info.block_size * (int)aux_info.bg_desc_blocks)
-        critical_error("failed to read all of block group descriptors");
-
-    if (verbose) {
-        printf("Found filesystem with parameters:\n");
-        printf("    Size: %"PRIu64"\n", info.len);
-        printf("    Block size: %d\n", info.block_size);
-        printf("    Blocks per group: %d\n", info.blocks_per_group);
-        printf("    Inodes per group: %d\n", info.inodes_per_group);
-        printf("    Inode size: %d\n", info.inode_size);
-        printf("    Label: %s\n", info.label);
-        printf("    Blocks: %"PRIu64"\n", aux_info.len_blocks);
-        printf("    Block groups: %d\n", aux_info.groups);
-        printf("    Reserved block group size: %d\n", info.bg_desc_reserve_blocks);
-        printf("    Used %d/%d inodes and %d/%d blocks\n",
-                aux_info.sb->s_inodes_count - aux_info.sb->s_free_inodes_count,
-                aux_info.sb->s_inodes_count,
-                aux_info.sb->s_blocks_count_lo - aux_info.sb->s_free_blocks_count_lo,
-                aux_info.sb->s_blocks_count_lo);
+    if (!no_write) {
+        write_sb(fd, 1024, &sb);
     }
 
     return 0;
@@ -321,21 +229,6 @@
     return 0;
 }
 
-static int bitmap_get_bit(u8 *bitmap, u32 bit)
-{
-        if (bitmap[bit / 8] & (1 << (bit % 8)))
-                return 1;
-
-        return 0;
-}
-
-static void bitmap_clear_bit(u8 *bitmap, u32 bit)
-{
-        bitmap[bit / 8] &= ~(1 << (bit % 8));
-
-        return;
-}
-
 static void check_inode_bitmap(int fd, unsigned int bg_num)
 {
     unsigned int inode_bitmap_block_num;
@@ -426,7 +319,13 @@
                 sb.s_desc_size &= ~1;
             }
 
-            write_sb(fd, (unsigned long long)i * info.blocks_per_group * info.block_size + sb_offset, &sb);
+            if (!no_write) {
+                write_sb(fd,
+                         (unsigned long long)i
+                         * info.blocks_per_group * info.block_size
+                         + sb_offset,
+                         &sb);
+            }
 
             ret = lseek64(fd, ((unsigned long long)i * info.blocks_per_group * info.block_size) +
                               (info.block_size * (aux_info.first_data_block + 1)), SEEK_SET);
@@ -806,7 +705,21 @@
     if (fd < 0)
         critical_error_errno("failed to open filesystem image");
 
-    read_ext(fd);
+    read_ext(fd, verbose);
+
+    if (info.feat_incompat & EXT4_FEATURE_INCOMPAT_RECOVER) {
+        critical_error("Filesystem needs recovery first, mount and unmount to do that\n");
+    }
+
+    /* Clear the low bit which is set while this tool is in progress.
+     * If the tool crashes, it will still be set when we restart.
+     * The low bit is set to make the filesystem unmountable while
+     * it is being fixed up.  Also allow 0, which means the old ext2
+     * size is in use.
+     */
+    if (((aux_info.sb->s_desc_size & ~1) != sizeof(struct ext2_group_desc)) &&
+        ((aux_info.sb->s_desc_size & ~1) != 0))
+        critical_error("error: bg_desc_size != sizeof(struct ext2_group_desc)\n");
 
     if ((info.feat_incompat & EXT4_FEATURE_INCOMPAT_FILETYPE) == 0) {
         critical_error("Expected filesystem to have filetype flag set\n");
diff --git a/ext4_utils/make_ext4fs.c b/ext4_utils/make_ext4fs.c
index 0cb5bae..1c25457 100644
--- a/ext4_utils/make_ext4fs.c
+++ b/ext4_utils/make_ext4fs.c
@@ -110,7 +110,7 @@
    if the image were mounted at the specified mount point */
 static u32 build_directory_structure(const char *full_path, const char *dir_path,
 		u32 dir_inode, fs_config_func_t fs_config_func,
-		struct selabel_handle *sehnd, int verbose)
+		struct selabel_handle *sehnd, int verbose, time_t fixed_time)
 {
 	int entries = 0;
 	struct dentry *dentries;
@@ -164,7 +164,11 @@
 
 		dentries[i].size = stat.st_size;
 		dentries[i].mode = stat.st_mode & (S_ISUID|S_ISGID|S_ISVTX|S_IRWXU|S_IRWXG|S_IRWXO);
-		dentries[i].mtime = stat.st_mtime;
+		if (fixed_time == -1) {
+			dentries[i].mtime = stat.st_mtime;
+		} else {
+			dentries[i].mtime = fixed_time;
+		}
 		uint64_t capabilities;
 		if (fs_config_func != NULL) {
 #ifdef ANDROID
@@ -257,7 +261,7 @@
 			if (ret < 0)
 				critical_error_errno("asprintf");
 			entry_inode = build_directory_structure(subdir_full_path,
-					subdir_dir_path, inode, fs_config_func, sehnd, verbose);
+					subdir_dir_path, inode, fs_config_func, sehnd, verbose, fixed_time);
 			free(subdir_full_path);
 			free(subdir_dir_path);
 		} else if (dentries[i].file_type == EXT4_FT_SYMLINK) {
@@ -358,28 +362,28 @@
 }
 
 void reset_ext4fs_info() {
-    // Reset all the global data structures used by make_ext4fs so it
-    // can be called again.
-    memset(&info, 0, sizeof(info));
-    memset(&aux_info, 0, sizeof(aux_info));
+	// Reset all the global data structures used by make_ext4fs so it
+	// can be called again.
+	memset(&info, 0, sizeof(info));
+	memset(&aux_info, 0, sizeof(aux_info));
 
-    if (ext4_sparse_file) {
-        sparse_file_destroy(ext4_sparse_file);
-        ext4_sparse_file = NULL;
-    }
+	if (ext4_sparse_file) {
+		sparse_file_destroy(ext4_sparse_file);
+		ext4_sparse_file = NULL;
+	}
 }
 
 int make_ext4fs_sparse_fd(int fd, long long len,
-                const char *mountpoint, struct selabel_handle *sehnd)
+				const char *mountpoint, struct selabel_handle *sehnd)
 {
 	reset_ext4fs_info();
 	info.len = len;
 
-	return make_ext4fs_internal(fd, NULL, mountpoint, NULL, 0, 1, 0, 0, sehnd, 0);
+	return make_ext4fs_internal(fd, NULL, mountpoint, NULL, 0, 1, 0, 0, sehnd, 0, -1);
 }
 
 int make_ext4fs(const char *filename, long long len,
-                const char *mountpoint, struct selabel_handle *sehnd)
+				const char *mountpoint, struct selabel_handle *sehnd)
 {
 	int fd;
 	int status;
@@ -393,7 +397,7 @@
 		return EXIT_FAILURE;
 	}
 
-	status = make_ext4fs_internal(fd, NULL, mountpoint, NULL, 0, 0, 0, 1, sehnd, 0);
+	status = make_ext4fs_internal(fd, NULL, mountpoint, NULL, 0, 0, 0, 1, sehnd, 0, -1);
 	close(fd);
 
 	return status;
@@ -457,9 +461,9 @@
 }
 
 int make_ext4fs_internal(int fd, const char *_directory,
-                         const char *_mountpoint, fs_config_func_t fs_config_func, int gzip,
-                         int sparse, int crc, int wipe,
-                         struct selabel_handle *sehnd, int verbose)
+						 const char *_mountpoint, fs_config_func_t fs_config_func, int gzip,
+						 int sparse, int crc, int wipe,
+						 struct selabel_handle *sehnd, int verbose, time_t fixed_time)
 {
 	u32 root_inode_num;
 	u16 root_mode;
@@ -568,7 +572,7 @@
 #else
 	if (directory)
 		root_inode_num = build_directory_structure(directory, mountpoint, 0,
-                        fs_config_func, sehnd, verbose);
+				fs_config_func, sehnd, verbose, fixed_time);
 	else
 		root_inode_num = build_default_directory_structure();
 #endif
diff --git a/ext4_utils/make_ext4fs_main.c b/ext4_utils/make_ext4fs_main.c
index b6c740d..7e59417 100644
--- a/ext4_utils/make_ext4fs_main.c
+++ b/ext4_utils/make_ext4fs_main.c
@@ -52,7 +52,7 @@
 	fprintf(stderr, "%s [ -l <len> ] [ -j <journal size> ] [ -b <block_size> ]\n", basename(path));
 	fprintf(stderr, "    [ -g <blocks per group> ] [ -i <inodes> ] [ -I <inode size> ]\n");
 	fprintf(stderr, "    [ -L <label> ] [ -f ] [ -a <android mountpoint> ]\n");
-	fprintf(stderr, "    [ -S file_contexts ]\n");
+	fprintf(stderr, "    [ -S file_contexts ] [ -T timestamp ]\n");
 	fprintf(stderr, "    [ -z | -s ] [ -w ] [ -c ] [ -J ] [ -v ]\n");
 	fprintf(stderr, "    <filename> [<directory>]\n");
 }
@@ -71,12 +71,13 @@
 	int fd;
 	int exitcode;
 	int verbose = 0;
+	time_t fixed_time = -1;
 	struct selabel_handle *sehnd = NULL;
 #ifndef USE_MINGW
 	struct selinux_opt seopts[] = { { SELABEL_OPT_PATH, "" } };
 #endif
 
-	while ((opt = getopt(argc, argv, "l:j:b:g:i:I:L:a:S:fwzJsctv")) != -1) {
+	while ((opt = getopt(argc, argv, "l:j:b:g:i:I:L:a:S:T:fwzJsctv")) != -1) {
 		switch (opt) {
 		case 'l':
 			info.len = parse_num(optarg);
@@ -143,6 +144,9 @@
 		case 'v':
 			verbose = 1;
 			break;
+		case 'T':
+			fixed_time = strtoll(optarg, NULL, 0);
+			break;
 		default: /* '?' */
 			usage(argv[0]);
 			exit(EXIT_FAILURE);
@@ -201,7 +205,7 @@
 	}
 
 	exitcode = make_ext4fs_internal(fd, directory, mountpoint, fs_config_func, gzip,
-			sparse, crc, wipe, sehnd, verbose);
+			sparse, crc, wipe, sehnd, verbose, fixed_time);
 	close(fd);
 
 	return exitcode;
diff --git a/ext4_utils/mkuserimg.sh b/ext4_utils/mkuserimg.sh
index c44129e..6ef0294 100755
--- a/ext4_utils/mkuserimg.sh
+++ b/ext4_utils/mkuserimg.sh
@@ -1,11 +1,11 @@
-#!/bin/bash -x
+#!/bin/bash
 #
 # To call this script, make sure make_ext4fs is somewhere in PATH
 
 function usage() {
 cat<<EOT
 Usage:
-mkuserimg.sh [-s] SRC_DIR OUTPUT_FILE EXT_VARIANT MOUNT_POINT SIZE [FILE_CONTEXTS]
+mkuserimg.sh [-s] SRC_DIR OUTPUT_FILE EXT_VARIANT MOUNT_POINT SIZE [-T TIMESTAMP] [FILE_CONTEXTS]
 EOT
 }
 
@@ -17,7 +17,7 @@
   shift
 fi
 
-if [ $# -ne 5 -a $# -ne 6 ]; then
+if [ $# -lt 5 -o $# -gt 8 ]; then
   usage
   exit 1
 fi
@@ -32,7 +32,14 @@
 EXT_VARIANT=$3
 MOUNT_POINT=$4
 SIZE=$5
-FC=$6
+shift; shift; shift; shift; shift
+
+TIMESTAMP=-1
+if [[ "$1" == "-T" ]]; then
+  TIMESTAMP=$2
+  shift; shift
+fi
+FC=$1
 
 case $EXT_VARIANT in
   ext4) ;;
@@ -53,7 +60,7 @@
     FCOPT="-S $FC"
 fi
 
-MAKE_EXT4FS_CMD="make_ext4fs $ENABLE_SPARSE_IMAGE $FCOPT -l $SIZE -a $MOUNT_POINT $OUTPUT_FILE $SRC_DIR"
+MAKE_EXT4FS_CMD="make_ext4fs $ENABLE_SPARSE_IMAGE -T $TIMESTAMP $FCOPT -l $SIZE -a $MOUNT_POINT $OUTPUT_FILE $SRC_DIR"
 echo $MAKE_EXT4FS_CMD
 $MAKE_EXT4FS_CMD
 if [ $? -ne 0 ]; then
diff --git a/taskstats/Android.mk b/taskstats/Android.mk
new file mode 100644
index 0000000..0ddba23
--- /dev/null
+++ b/taskstats/Android.mk
@@ -0,0 +1,19 @@
+# Copyright 2013 The Android Open Source Project
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+	taskstats.c
+
+LOCAL_C_INCLUDES := \
+	external/libnl-headers
+
+LOCAL_STATIC_LIBRARIES := \
+	libnl_2
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
+LOCAL_MODULE_TAGS := debug
+LOCAL_MODULE:= taskstats
+
+include $(BUILD_EXECUTABLE)
diff --git a/taskstats/MODULE_LICENSE_APACHE2 b/taskstats/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/taskstats/MODULE_LICENSE_APACHE2
diff --git a/taskstats/NOTICE b/taskstats/NOTICE
new file mode 100644
index 0000000..c5b1efa
--- /dev/null
+++ b/taskstats/NOTICE
@@ -0,0 +1,190 @@
+
+   Copyright (c) 2005-2008, 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.
+
+   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.
+
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
diff --git a/taskstats/taskstats.c b/taskstats/taskstats.c
new file mode 100644
index 0000000..66cc0c5
--- /dev/null
+++ b/taskstats/taskstats.c
@@ -0,0 +1,378 @@
+/*
+ * 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.
+ */
+
+/*
+ * Linux task stats reporting tool. Queries and prints out the kernel's
+ * taskstats structure for a given process or thread group id. See
+ * https://www.kernel.org/doc/Documentation/accounting/ for more information
+ * about the reported fields.
+ */
+
+#include <errno.h>
+#include <getopt.h>
+#include <netlink-types.h>
+#include <netlink/attr.h>
+#include <netlink/genl/genl.h>
+#include <netlink/handlers.h>
+#include <netlink/msg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <linux/taskstats.h>
+
+struct TaskStatistics {
+    int pid;
+    int tgid;
+    struct taskstats stats;
+};
+
+int send_command(struct nl_sock* netlink_socket, uint16_t nlmsg_type,
+                 uint32_t nlmsg_pid, uint8_t genl_cmd, uint16_t nla_type,
+                 void* nla_data, int nla_len) {
+    struct nl_msg* message = nlmsg_alloc();
+    int seq = 0;
+    int version = 1;
+    int header_length = 0;
+    int flags = NLM_F_REQUEST;
+    genlmsg_put(message, nlmsg_pid, seq, nlmsg_type, header_length, flags,
+                genl_cmd, version);
+    nla_put(message, nla_type, nla_len, nla_data);
+
+    /* Override the header flags since we don't want NLM_F_ACK. */
+    struct nlmsghdr* header = nlmsg_hdr(message);
+    header->nlmsg_flags = flags;
+
+    int result = nl_send(netlink_socket, message);
+    nlmsg_free(message);
+    return result;
+}
+
+int print_receive_error(struct sockaddr_nl* address, struct nlmsgerr* error,
+                        void* arg) {
+    fprintf(stderr, "Netlink receive error: %s\n", strerror(-error->error));
+    return NL_STOP;
+}
+
+int parse_family_id(struct nl_msg* msg, void* arg) {
+    struct genlmsghdr* gnlh = (struct genlmsghdr*)nlmsg_data(nlmsg_hdr(msg));
+    struct nlattr* attr = genlmsg_attrdata(gnlh, 0);
+    int remaining = genlmsg_attrlen(gnlh, 0);
+
+    do {
+        if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
+            *((int*)arg) = nla_get_u16(attr);
+            return NL_STOP;
+        }
+    } while ((attr = nla_next(attr, &remaining)));
+    return NL_OK;
+}
+
+int get_family_id(struct nl_sock* netlink_socket, const char* name) {
+    if (send_command(netlink_socket, GENL_ID_CTRL, getpid(),
+                     CTRL_CMD_GETFAMILY,
+                     CTRL_ATTR_FAMILY_NAME,
+                     (void*)name, strlen(name) + 1) < 0) {
+        return 0;
+    }
+
+    int family_id = 0;
+    struct nl_cb* callbacks = nl_cb_get(nl_cb_alloc(NL_CB_VALID));
+    nl_cb_set(callbacks, NL_CB_VALID, NL_CB_DEFAULT, &parse_family_id,
+              &family_id);
+    nl_cb_err(callbacks, NL_CB_DEFAULT, &print_receive_error, NULL);
+
+    if (nl_recvmsgs(netlink_socket, callbacks) < 0) {
+        return 0;
+    }
+    nl_cb_put(callbacks);
+    return family_id;
+}
+
+void parse_aggregate_task_stats(struct nlattr* attr, int attr_size,
+                                struct TaskStatistics* stats) {
+    do {
+        switch (attr->nla_type) {
+            case TASKSTATS_TYPE_PID:
+                stats->pid = nla_get_u32(attr);
+                break;
+            case TASKSTATS_TYPE_TGID:
+                stats->tgid = nla_get_u32(attr);
+                break;
+            case TASKSTATS_TYPE_STATS:
+                nla_memcpy(&stats->stats, attr, sizeof(stats->stats));
+                break;
+            default:
+                break;
+        }
+    } while ((attr = nla_next(attr, &attr_size)));
+}
+
+int parse_task_stats(struct nl_msg* msg, void* arg) {
+    struct TaskStatistics* stats = (struct TaskStatistics*)arg;
+    struct genlmsghdr* gnlh = (struct genlmsghdr*)nlmsg_data(nlmsg_hdr(msg));
+    struct nlattr* attr = genlmsg_attrdata(gnlh, 0);
+    int remaining = genlmsg_attrlen(gnlh, 0);
+
+    do {
+        switch (attr->nla_type) {
+            case TASKSTATS_TYPE_AGGR_PID:
+            case TASKSTATS_TYPE_AGGR_TGID:
+                parse_aggregate_task_stats(nla_data(attr), nla_len(attr),
+                                           stats);
+                break;
+            default:
+                break;
+        }
+    } while ((attr = nla_next(attr, &remaining)));
+    return NL_STOP;
+}
+
+int query_task_stats(struct nl_sock* netlink_socket, int family_id,
+                     int command_type, int parameter,
+                     struct TaskStatistics* stats) {
+    memset(stats, 0, sizeof(*stats));
+    int result = send_command(netlink_socket, family_id, getpid(),
+                              TASKSTATS_CMD_GET, command_type, &parameter,
+                              sizeof(parameter));
+    if (result < 0) {
+        return result;
+    }
+
+    struct nl_cb* callbacks = nl_cb_get(nl_cb_alloc(NL_CB_VALID));
+    nl_cb_set(callbacks, NL_CB_VALID, NL_CB_DEFAULT, &parse_task_stats, stats);
+    nl_cb_err(callbacks, NL_CB_DEFAULT, &print_receive_error, &family_id);
+
+    result = nl_recvmsgs(netlink_socket, callbacks);
+    if (result < 0) {
+        return result;
+    }
+    nl_cb_put(callbacks);
+    return stats->pid || stats->tgid;
+}
+
+double average_ms(uint64_t total, uint64_t count) {
+    if (!count) {
+        return 0;
+    }
+    return ((double)total) / count / 1e6;
+}
+
+uint64_t average_ns(uint64_t total, uint64_t count) {
+    if (!count) {
+        return 0;
+    }
+    return total / count;
+}
+
+void print_task_stats(const struct TaskStatistics* stats,
+                      int human_readable) {
+    const struct taskstats* s = &stats->stats;
+    printf("Basic task statistics\n");
+    printf("---------------------\n");
+    printf("%-25s%d\n", "Stats version:", s->version);
+    printf("%-25s%d\n", "Exit code:", s->ac_exitcode);
+    printf("%-25s0x%x\n", "Flags:", s->ac_flag);
+    printf("%-25s%d\n", "Nice value:", s->ac_nice);
+    printf("%-25s%s\n", "Command name:", s->ac_comm);
+    printf("%-25s%d\n", "Scheduling discipline:", s->ac_sched);
+    printf("%-25s%d\n", "UID:", s->ac_uid);
+    printf("%-25s%d\n", "GID:", s->ac_gid);
+    printf("%-25s%d\n", "PID:", s->ac_pid);
+    printf("%-25s%d\n", "PPID:", s->ac_ppid);
+
+    if (human_readable) {
+        time_t begin_time = s->ac_btime;
+        printf("%-25s%s", "Begin time:", ctime(&begin_time));
+    } else {
+        printf("%-25s%d sec\n", "Begin time:", s->ac_btime);
+    }
+    printf("%-25s%llu usec\n", "Elapsed time:", s->ac_etime);
+    printf("%-25s%llu usec\n", "User CPU time:", s->ac_utime);
+    printf("%-25s%llu\n", "Minor page faults:", s->ac_minflt);
+    printf("%-25s%llu\n", "Major page faults:", s->ac_majflt);
+    printf("%-25s%llu usec\n", "Scaled user time:", s->ac_utimescaled);
+    printf("%-25s%llu usec\n", "Scaled system time:", s->ac_stimescaled);
+
+    printf("\nDelay accounting\n");
+    printf("----------------\n");
+    printf("       %15s%15s%15s%15s%15s%15s\n",
+           "Count",
+           human_readable ? "Delay (ms)" : "Delay (ns)",
+           "Average delay",
+           "Real delay",
+           "Scaled real",
+           "Virtual delay");
+
+    if (!human_readable) {
+        printf("CPU    %15llu%15llu%15llu%15llu%15llu%15llu\n",
+               s->cpu_count,
+               s->cpu_delay_total,
+               average_ns(s->cpu_delay_total, s->cpu_count),
+               s->cpu_run_real_total,
+               s->cpu_scaled_run_real_total,
+               s->cpu_run_virtual_total);
+        printf("IO     %15llu%15llu%15llu\n",
+               s->blkio_count,
+               s->blkio_delay_total,
+               average_ns(s->blkio_delay_total, s->blkio_count));
+        printf("Swap   %15llu%15llu%15llu\n",
+               s->swapin_count,
+               s->swapin_delay_total,
+               average_ns(s->swapin_delay_total, s->swapin_count));
+        printf("Reclaim%15llu%15llu%15llu\n",
+               s->freepages_count,
+               s->freepages_delay_total,
+               average_ns(s->freepages_delay_total, s->freepages_count));
+    } else {
+        const double ms_per_ns = 1e6;
+        printf("CPU    %15llu%15.3f%15.3f%15.3f%15.3f%15.3f\n",
+               s->cpu_count,
+               s->cpu_delay_total / ms_per_ns,
+               average_ms(s->cpu_delay_total, s->cpu_count),
+               s->cpu_run_real_total / ms_per_ns,
+               s->cpu_scaled_run_real_total / ms_per_ns,
+               s->cpu_run_virtual_total / ms_per_ns);
+        printf("IO     %15llu%15.3f%15.3f\n",
+               s->blkio_count,
+               s->blkio_delay_total / ms_per_ns,
+               average_ms(s->blkio_delay_total, s->blkio_count));
+        printf("Swap   %15llu%15.3f%15.3f\n",
+               s->swapin_count,
+               s->swapin_delay_total / ms_per_ns,
+               average_ms(s->swapin_delay_total, s->swapin_count));
+        printf("Reclaim%15llu%15.3f%15.3f\n",
+               s->freepages_count,
+               s->freepages_delay_total / ms_per_ns,
+               average_ms(s->freepages_delay_total, s->freepages_count));
+    }
+
+    printf("\nExtended accounting fields\n");
+    printf("--------------------------\n");
+    if (human_readable && s->ac_stime) {
+        printf("%-25s%.3f MB\n", "Average RSS usage:",
+               (double)s->coremem / s->ac_stime);
+        printf("%-25s%.3f MB\n", "Average VM usage:",
+               (double)s->virtmem / s->ac_stime);
+    } else {
+        printf("%-25s%llu MB\n", "Accumulated RSS usage:", s->coremem);
+        printf("%-25s%llu MB\n", "Accumulated VM usage:", s->virtmem);
+    }
+    printf("%-25s%llu KB\n", "RSS high water mark:", s->hiwater_rss);
+    printf("%-25s%llu KB\n", "VM high water mark:", s->hiwater_vm);
+    printf("%-25s%llu\n", "IO bytes read:", s->read_char);
+    printf("%-25s%llu\n", "IO bytes written:", s->write_char);
+    printf("%-25s%llu\n", "IO read syscalls:", s->read_syscalls);
+    printf("%-25s%llu\n", "IO write syscalls:", s->write_syscalls);
+
+    printf("\nPer-task/thread statistics\n");
+    printf("--------------------------\n");
+    printf("%-25s%llu\n", "Voluntary switches:", s->nvcsw);
+    printf("%-25s%llu\n", "Involuntary switches:", s->nivcsw);
+}
+
+void print_usage() {
+  printf("Linux task stats reporting tool\n"
+         "\n"
+         "Usage: taskstats [options]\n"
+         "\n"
+         "Options:\n"
+         "  --help        This text\n"
+         "  --pid PID     Print stats for the process id PID\n"
+         "  --tgid TGID   Print stats for the thread group id TGID\n"
+         "  --raw         Print raw numbers instead of human readable units\n"
+         "\n"
+         "Either PID or TGID must be specified. For more documentation about "
+         "the reported fields, see\n"
+         "https://www.kernel.org/doc/Documentation/accounting/"
+         "taskstats-struct.txt\n");
+}
+
+int main(int argc, char** argv) {
+    int command_type = 0;
+    int pid = 0;
+    int human_readable = 1;
+
+    const struct option long_options[] = {
+        {"help", no_argument, 0, 0},
+        {"pid", required_argument, 0, 0},
+        {"tgid", required_argument, 0, 0},
+        {"raw", no_argument, 0, 0},
+        {0, 0, 0, 0}
+    };
+
+    while (1) {
+        int option_index;
+        int option_char = getopt_long_only(argc, argv, "", long_options,
+                                           &option_index);
+        if (option_char == -1) {
+            break;
+        }
+        switch (option_index) {
+            case 0:
+                print_usage();
+                return EXIT_SUCCESS;
+            case 1:
+                command_type = TASKSTATS_CMD_ATTR_PID;
+                pid = atoi(optarg);
+                break;
+            case 2:
+                command_type = TASKSTATS_CMD_ATTR_TGID;
+                pid = atoi(optarg);
+                break;
+            case 3:
+                human_readable = 0;
+                break;
+            default:
+                break;
+        };
+    }
+
+    if (!pid) {
+        printf("Either PID or TGID must be specified\n");
+        return EXIT_FAILURE;
+    }
+
+    struct nl_sock* netlink_socket = nl_socket_alloc();
+    if (!netlink_socket || genl_connect(netlink_socket) < 0) {
+        perror("Unable to open netlink socket (are you root?)");
+        goto error;
+    }
+
+    int family_id = get_family_id(netlink_socket, TASKSTATS_GENL_NAME);
+    if (!family_id) {
+        perror("Unable to determine taskstats family id "
+               "(does your kernel support taskstats?)");
+        goto error;
+    }
+    struct TaskStatistics stats;
+    if (query_task_stats(netlink_socket, family_id, command_type, pid,
+                         &stats) < 0) {
+        perror("Failed to query taskstats");
+        goto error;
+    }
+    print_task_stats(&stats, human_readable);
+
+    nl_socket_free(netlink_socket);
+    return EXIT_SUCCESS;
+
+error:
+    if (netlink_socket) {
+        nl_socket_free(netlink_socket);
+    }
+    return EXIT_FAILURE;
+}
diff --git a/tests/audio/Android.mk b/tests/audio/Android.mk
new file mode 100644
index 0000000..f69a2fc
--- /dev/null
+++ b/tests/audio/Android.mk
@@ -0,0 +1,17 @@
+#
+# 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.
+#
+
+include $(call all-subdir-makefiles)
diff --git a/tests/audio/alsa/Android.mk b/tests/audio/alsa/Android.mk
new file mode 100644
index 0000000..c6e5a8a
--- /dev/null
+++ b/tests/audio/alsa/Android.mk
@@ -0,0 +1,27 @@
+#
+# 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.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_MODULE := pcmtest
+LOCAL_SRC_FILES := pcmtest.cpp
+LOCAL_SHARED_LIBRARIES += libcutils libutils liblog libtinyalsa
+LOCAL_STATIC_LIBRARIES += libtestUtil
+LOCAL_C_INCLUDES += system/extras/tests/include external/tinyalsa/include
+
+include $(BUILD_NATIVE_TEST)
diff --git a/tests/audio/alsa/pcmtest.cpp b/tests/audio/alsa/pcmtest.cpp
new file mode 100644
index 0000000..b8bc5f2
--- /dev/null
+++ b/tests/audio/alsa/pcmtest.cpp
@@ -0,0 +1,224 @@
+/*
+ * 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 requied 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 <assert.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <gtest/gtest.h>
+#include <linux/ioctl.h>
+#define __force
+#define __bitwise
+#define __user
+#include <sound/asound.h>
+#include <sys/types.h>
+#include <tinyalsa/asoundlib.h>
+
+#define LOG_TAG "pcmtest"
+#include <utils/Log.h>
+#include <testUtil.h>
+
+#define PCM_PREFIX	"pcm"
+#define MIXER_PREFIX	"control"
+#define TIMER_PREFIX	"timer"
+
+const char kSoundDir[] = "/dev/snd";
+
+typedef struct PCM_NODE {
+    unsigned int card;
+    unsigned int device;
+    unsigned int flags;
+} pcm_node_t;
+
+static pcm_node_t *pcmnodes;
+
+static unsigned int pcms;
+static unsigned int cards;
+static unsigned int mixers;
+static unsigned int timers;
+
+int getPcmNodes(void)
+{
+    DIR *d;
+    struct dirent *de;
+    unsigned int pcount = 0;
+
+    d = opendir(kSoundDir);
+    if (d == 0)
+        return 0;
+    while ((de = readdir(d)) != NULL) {
+        if (de->d_name[0] == '.')
+            continue;
+        if (strstr(de->d_name, PCM_PREFIX))
+            pcount++;
+    }
+    closedir(d);
+    return pcount;
+}
+
+int getSndDev(unsigned int pcmdevs)
+{
+    DIR *d;
+    struct dirent *de;
+    unsigned int prevcard = -1;
+
+    d = opendir(kSoundDir);
+    if (d == 0)
+        return -ENXIO;
+    pcmnodes = (pcm_node_t *)malloc(pcmdevs * sizeof(pcm_node_t));
+    if (!pcmnodes)
+        return -ENOMEM;
+    pcms = 0;
+    while ((de = readdir(d)) != NULL) {
+        if (de->d_name[0] == '.')
+            continue;
+        /* printf("%s\n", de->d_name); */
+        if (strstr(de->d_name, PCM_PREFIX)) {
+            char flags;
+
+            EXPECT_LE(pcms, pcmdevs) << "Too many PCMs";
+            if (pcms >= pcmdevs)
+                continue;
+            sscanf(de->d_name, PCM_PREFIX "C%uD%u", &(pcmnodes[pcms].card),
+                   &(pcmnodes[pcms].device));
+            flags = de->d_name[strlen(de->d_name)-1];
+            if (flags == 'c') {
+                pcmnodes[pcms].flags = PCM_IN;
+            } else if(flags == 'p') {
+                pcmnodes[pcms].flags = PCM_OUT;
+            } else {
+                pcmnodes[pcms].flags = -1;
+                testPrintI("Unknown PCM type = %c", flags);
+            }
+            if (prevcard != pcmnodes[pcms].card)
+                cards++;
+            prevcard = pcmnodes[pcms].card;
+            pcms++;
+            continue;
+        }
+        if (strstr(de->d_name, MIXER_PREFIX)) {
+            unsigned int mixer = -1;
+            sscanf(de->d_name, MIXER_PREFIX "C%u", &mixer);
+            mixers++;
+            continue;
+        }
+        if (strstr(de->d_name, TIMER_PREFIX)) {
+            timers++;
+            continue;
+        }
+    }
+    closedir(d);
+    return 0;
+}
+
+int getPcmParams(unsigned int i)
+{
+    struct pcm_params *params;
+    unsigned int min;
+    unsigned int max;
+
+    params = pcm_params_get(pcmnodes[i].card, pcmnodes[i].device,
+                            pcmnodes[i].flags);
+    if (params == NULL)
+        return -ENODEV;
+
+    min = pcm_params_get_min(params, PCM_PARAM_RATE);
+    max = pcm_params_get_max(params, PCM_PARAM_RATE);
+    EXPECT_LE(min, max);
+    /* printf("        Rate:\tmin=%uHz\tmax=%uHz\n", min, max); */
+    min = pcm_params_get_min(params, PCM_PARAM_CHANNELS);
+    max = pcm_params_get_max(params, PCM_PARAM_CHANNELS);
+    EXPECT_LE(min, max);
+    /* printf("    Channels:\tmin=%u\t\tmax=%u\n", min, max); */
+    min = pcm_params_get_min(params, PCM_PARAM_SAMPLE_BITS);
+    max = pcm_params_get_max(params, PCM_PARAM_SAMPLE_BITS);
+    EXPECT_LE(min, max);
+    /* printf(" Sample bits:\tmin=%u\t\tmax=%u\n", min, max); */
+    min = pcm_params_get_min(params, PCM_PARAM_PERIOD_SIZE);
+    max = pcm_params_get_max(params, PCM_PARAM_PERIOD_SIZE);
+    EXPECT_LE(min, max);
+    /* printf(" Period size:\tmin=%u\t\tmax=%u\n", min, max); */
+    min = pcm_params_get_min(params, PCM_PARAM_PERIODS);
+    max = pcm_params_get_max(params, PCM_PARAM_PERIODS);
+    EXPECT_LE(min, max);
+    /* printf("Period count:\tmin=%u\t\tmax=%u\n", min, max); */
+
+    pcm_params_free(params);
+    return 0;
+}
+
+TEST(pcmtest, CheckAudioDir) {
+    pcms = getPcmNodes();
+    ASSERT_GT(pcms, 0);
+}
+
+TEST(pcmtest, GetSoundDevs) {
+    int err = getSndDev(pcms);
+    testPrintI(" DEVICES = PCMS:%u CARDS:%u MIXERS:%u TIMERS:%u",
+               pcms, cards, mixers, timers);
+    ASSERT_EQ(0, err);
+}
+
+TEST(pcmtest, CheckPcmSanity0) {
+    ASSERT_NE(0, pcms);
+}
+
+TEST(pcmtest, CheckPcmSanity1) {
+    EXPECT_NE(1, pcms % 2);
+}
+
+TEST(pcmtests, CheckMixerSanity) {
+    ASSERT_NE(0, mixers);
+    ASSERT_EQ(mixers, cards);
+}
+
+TEST(pcmtest, CheckTimesSanity0) {
+    ASSERT_NE(0, timers);
+}
+
+TEST(pcmtest, CheckTimesSanity1) {
+    EXPECT_EQ(1, timers);
+}
+
+TEST(pcmtest, CheckPcmDevices) {
+    for (unsigned int i = 0; i < pcms; i++) {
+        EXPECT_EQ(0, getPcmParams(i));
+    }
+    free(pcmnodes);
+}
+
+TEST(pcmtest, CheckMixerDevices) {
+    struct mixer *mixer;
+    for (unsigned int i = 0; i < mixers; i++) {
+         mixer = mixer_open(i);
+         EXPECT_TRUE(mixer != NULL);
+         if (mixer)
+             mixer_close(mixer);
+    }
+}
+
+TEST(pcmtest, CheckTimer) {
+    int ver = 0;
+    int fd = open("/dev/snd/timer", O_RDWR | O_NONBLOCK);
+    ASSERT_GE(fd, 0);
+    int ret = ioctl(fd, SNDRV_TIMER_IOCTL_PVERSION, &ver);
+    EXPECT_EQ(0, ret);
+    testPrintI(" Timer Version = 0x%x", ver);
+    close(fd);
+}
diff --git a/verity/Android.mk b/verity/Android.mk
new file mode 100644
index 0000000..68fe0ef
--- /dev/null
+++ b/verity/Android.mk
@@ -0,0 +1,50 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := generate_verity_key
+LOCAL_SRC_FILES := generate_verity_key.c
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_MODULE_TAGS := optional
+LOCAL_SHARED_LIBRARIES := libcrypto-host
+LOCAL_C_INCLUDES += external/openssl/include
+include $(BUILD_HOST_EXECUTABLE)
+
+#include $(CLEAR_VARS)
+#LOCAL_MODULE := generate_block_patch
+#LOCAL_SRC_FILES := generate_block_patch.c
+#LOCAL_MODULE_CLASS := EXECUTABLES
+#LOCAL_MODULE_TAGS := optional
+#LOCAL_SHARED_LIBRARIES := libminibsdiff
+#include $(BUILD_HOST_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := VeritySigner.java
+LOCAL_MODULE := VeritySigner
+LOCAL_JAR_MANIFEST := VeritySigner.mf
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_HOST_JAVA_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := verity_signer
+LOCAL_MODULE := verity_signer
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_IS_HOST_MODULE := true
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_PREBUILT)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := build_verity_tree.py
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_SRC_FILES := build_verity_tree.py
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_IS_HOST_MODULE := true
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_PREBUILT)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := build_verity_metadata.py
+LOCAL_MODULE_CLASS := EXECUTABLES
+LOCAL_SRC_FILES := build_verity_metadata.py
+LOCAL_IS_HOST_MODULE := true
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_PREBUILT)
diff --git a/verity/VeritySigner.java b/verity/VeritySigner.java
new file mode 100644
index 0000000..f1d95c8
--- /dev/null
+++ b/verity/VeritySigner.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.verity;
+
+import sun.misc.BASE64Decoder;
+import sun.misc.BASE64Encoder;
+import java.io.DataInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.security.KeyFactory;
+import java.security.PrivateKey;
+import java.security.Signature;
+import java.security.spec.PKCS8EncodedKeySpec;
+
+class VeritySigner {
+
+    private static byte[] sign(PrivateKey privateKey, byte[] input) throws Exception {
+        Signature signer = Signature.getInstance("SHA1withRSA");
+        signer.initSign(privateKey);
+        signer.update(input);
+        return signer.sign();
+    }
+
+    private static PKCS8EncodedKeySpec pemToDer(String pem) throws Exception {
+        pem = pem.replaceAll("^-.*", "");
+        String base64_der = pem.replaceAll("-.*$", "");
+        BASE64Decoder decoder = new BASE64Decoder();
+        byte[] der = decoder.decodeBuffer(base64_der);
+        return new PKCS8EncodedKeySpec(der);
+    }
+
+    private static PrivateKey loadPrivateKey(String pem) throws Exception {
+        PKCS8EncodedKeySpec keySpec = pemToDer(pem);
+        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
+        return (PrivateKey) keyFactory.generatePrivate(keySpec);
+    }
+
+    private static byte[] read(String path) throws Exception {
+        File contentFile = new File(path);
+        byte[] content = new byte[(int)contentFile.length()];
+        FileInputStream fis = new FileInputStream(contentFile);
+        fis.read(content);
+        fis.close();
+        return content;
+    }
+
+    private static void writeOutput(String path, byte[] output) throws Exception {
+        FileOutputStream fos = new FileOutputStream(path);
+        fos.write(output);
+        fos.close();
+    }
+
+    // USAGE:
+    //     VeritySigner <contentfile> <key.pem> <sigfile>
+    // To verify that this has correct output:
+    //     openssl rsautl -raw -inkey <key.pem> -encrypt -in <sigfile> > /tmp/dump
+    public static void main(String[] args) throws Exception {
+        byte[] content = read(args[0]);
+        PrivateKey privateKey = loadPrivateKey(new String(read(args[1])));
+        byte[] signature = sign(privateKey, content);
+        writeOutput(args[2], signature);
+    }
+}
diff --git a/verity/VeritySigner.mf b/verity/VeritySigner.mf
new file mode 100644
index 0000000..b36c198
--- /dev/null
+++ b/verity/VeritySigner.mf
@@ -0,0 +1 @@
+Main-Class: com.android.verity.VeritySigner
diff --git a/verity/build_verity_metadata.py b/verity/build_verity_metadata.py
new file mode 100755
index 0000000..547e606
--- /dev/null
+++ b/verity/build_verity_metadata.py
@@ -0,0 +1,78 @@
+#! /usr/bin/env python
+
+import os
+import sys
+import struct
+import tempfile
+import commands
+
+VERSION = 0
+MAGIC_NUMBER = 0xb001b001
+BLOCK_SIZE = 4096
+METADATA_SIZE = BLOCK_SIZE * 8
+
+def run(cmd):
+    status, output = commands.getstatusoutput(cmd)
+    print output
+    if status:
+        exit(-1)
+
+def get_verity_metadata_size(data_size):
+    return METADATA_SIZE
+
+def build_metadata_block(verity_table, signature):
+    table_len = len(verity_table)
+    block = struct.pack("II256sI", MAGIC_NUMBER, VERSION, signature, table_len)
+    block += verity_table
+    block = block.ljust(METADATA_SIZE, '\x00')
+    return block
+
+def sign_verity_table(table, signer_path, key_path):
+    with tempfile.NamedTemporaryFile(suffix='.table') as table_file:
+        with tempfile.NamedTemporaryFile(suffix='.sig') as signature_file:
+            table_file.write(table)
+            table_file.flush()
+            cmd = " ".join((signer_path, table_file.name, key_path, signature_file.name))
+            print cmd
+            run(cmd)
+            return signature_file.read()
+
+def build_verity_table(block_device, data_blocks, root_hash, salt):
+    table = "1 %s %s %s %s %s %s sha256 %s %s"
+    table %= (  block_device,
+                block_device,
+                BLOCK_SIZE,
+                BLOCK_SIZE,
+                data_blocks,
+                data_blocks + (METADATA_SIZE / BLOCK_SIZE),
+                root_hash,
+                salt)
+    return table
+
+def build_verity_metadata(data_blocks, metadata_image, root_hash,
+                            salt, block_device, signer_path, signing_key):
+    # build the verity table
+    verity_table = build_verity_table(block_device, data_blocks, root_hash, salt)
+    # build the verity table signature
+    signature = sign_verity_table(verity_table, signer_path, signing_key)
+    # build the metadata block
+    metadata_block = build_metadata_block(verity_table, signature)
+    # write it to the outfile
+    with open(metadata_image, "wb") as f:
+        f.write(metadata_block)
+
+if __name__ == "__main__":
+    if len(sys.argv) == 3 and sys.argv[1] == "-s":
+        print get_verity_metadata_size(int(sys.argv[2]))
+    elif len(sys.argv) == 8:
+        data_image_blocks = int(sys.argv[1]) / 4096
+        metadata_image = sys.argv[2]
+        root_hash = sys.argv[3]
+        salt = sys.argv[4]
+        block_device = sys.argv[5]
+        signer_path = sys.argv[6]
+        signing_key = sys.argv[7]
+        build_verity_metadata(data_image_blocks, metadata_image, root_hash,
+                                salt, block_device, signer_path, signing_key)
+    else:
+        exit(-1)
diff --git a/verity/build_verity_tree.py b/verity/build_verity_tree.py
new file mode 100755
index 0000000..970d8c0
--- /dev/null
+++ b/verity/build_verity_tree.py
@@ -0,0 +1,87 @@
+#! /usr/bin/env python
+
+import os
+import sys
+import math
+import hashlib
+import binascii
+
+HASH_FUNCTION = "SHA256"
+HASH_FUNCTION_SIZE = 32
+BLOCK_SIZE = 4096
+HASHES_PER_BLOCK = BLOCK_SIZE / HASH_FUNCTION_SIZE
+
+def generate_salt():
+    return os.urandom(HASH_FUNCTION_SIZE)
+
+def get_hash_image_blocks(data_image_size):
+    data_image_blocks = data_image_size / BLOCK_SIZE
+    return data_image_blocks / (HASH_FUNCTION_SIZE * 2)
+
+def get_hash_image_size(data_image_size):
+    return get_hash_image_blocks(data_image_size) * BLOCK_SIZE
+
+def blockify(data):
+    blocks = []
+    for i in range(0, len(data), BLOCK_SIZE):
+        chunk = data[i:i+BLOCK_SIZE]
+        blocks.append(chunk)
+    return blocks
+
+def read_blocks(image_path):
+    image = open(image_path, "rb").read()
+    return blockify(image)
+
+def hash_block(data, salt):
+    hasher = hashlib.new(HASH_FUNCTION)
+    hasher.update(salt)
+    hasher.update(data)
+    return hasher.digest()
+
+def block_align(level):
+    pad_size = (BLOCK_SIZE - (len(level) % BLOCK_SIZE)) % BLOCK_SIZE
+    pad = '\x00' * pad_size
+    return level + pad
+
+def generate_hashes(data_blocks, salt):
+    levels = []
+    root_hash = ''
+    while True:
+        hashes = [hash_block(b, salt) for b in data_blocks]
+        if len(hashes) == 1:
+            root_hash = hashes[0]
+            break
+        else:
+            level = ''.join(hashes)
+            level = block_align(level)
+            levels.insert(0, level)
+            data_blocks = blockify(level)
+    return root_hash, ''.join(levels)
+
+def write_hashes(hashes, hash_image, hash_image_size):
+    hashes = hashes.ljust(hash_image_size, '\x00')
+    with open(hash_image, 'wb+') as hash_file:
+        hash_file.write(hashes)
+
+def generate_hash_image(data_image, hash_image, hash_image_size, salt):
+    blocks = read_blocks(data_image)
+    root_hash, hashes = generate_hashes(blocks, salt)
+    write_hashes(hashes, hash_image, hash_image_size)
+    return root_hash
+
+def build_verity_tree(data_image, hash_image, data_image_size):
+    salt = generate_salt()
+    hash_image_size = get_hash_image_size(data_image_size)
+    root_hash = generate_hash_image(data_image, hash_image, hash_image_size, salt)
+    print binascii.hexlify(root_hash), binascii.hexlify(salt)
+
+if __name__ == "__main__":
+    if len(sys.argv) == 3 and sys.argv[1] == "-s":
+        print get_hash_image_size(int(sys.argv[2]))
+    elif len(sys.argv) == 4:
+        data_image = sys.argv[1]
+        hash_image = sys.argv[2]
+        data_image_size = int(sys.argv[3])
+        build_verity_tree(data_image, hash_image, data_image_size)
+    else:
+        exit(-1)
diff --git a/verity/generate_verity_key.c b/verity/generate_verity_key.c
new file mode 100644
index 0000000..7414af5
--- /dev/null
+++ b/verity/generate_verity_key.c
@@ -0,0 +1,165 @@
+/*
+ * 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.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+/* HACK: we need the RSAPublicKey struct
+ * but RSA_verify conflits with openssl */
+#define RSA_verify RSA_verify_mincrypt
+#include "mincrypt/rsa.h"
+#undef RSA_verify
+
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/pem.h>
+#include <openssl/rsa.h>
+#include <openssl/sha.h>
+
+// Convert OpenSSL RSA private key to android pre-computed RSAPublicKey format.
+// Lifted from secure adb's mincrypt key generation.
+static int convert_to_mincrypt_format(RSA *rsa, RSAPublicKey *pkey)
+{
+    int ret = -1;
+    unsigned int i;
+
+    if (RSA_size(rsa) != RSANUMBYTES)
+        goto out;
+
+    BN_CTX* ctx = BN_CTX_new();
+    BIGNUM* r32 = BN_new();
+    BIGNUM* rr = BN_new();
+    BIGNUM* r = BN_new();
+    BIGNUM* rem = BN_new();
+    BIGNUM* n = BN_new();
+    BIGNUM* n0inv = BN_new();
+
+    BN_set_bit(r32, 32);
+    BN_copy(n, rsa->n);
+    BN_set_bit(r, RSANUMWORDS * 32);
+    BN_mod_sqr(rr, r, n, ctx);
+    BN_div(NULL, rem, n, r32, ctx);
+    BN_mod_inverse(n0inv, rem, r32, ctx);
+
+    pkey->len = RSANUMWORDS;
+    pkey->n0inv = 0 - BN_get_word(n0inv);
+    for (i = 0; i < RSANUMWORDS; i++) {
+        BN_div(rr, rem, rr, r32, ctx);
+        pkey->rr[i] = BN_get_word(rem);
+        BN_div(n, rem, n, r32, ctx);
+        pkey->n[i] = BN_get_word(rem);
+    }
+    pkey->exponent = BN_get_word(rsa->e);
+
+    ret = 0;
+
+    BN_free(n0inv);
+    BN_free(n);
+    BN_free(rem);
+    BN_free(r);
+    BN_free(rr);
+    BN_free(r32);
+    BN_CTX_free(ctx);
+
+out:
+    return ret;
+}
+
+static int write_public_keyfile(RSA *private_key, const char *private_key_path)
+{
+    RSAPublicKey pkey;
+    BIO *bfile = NULL;
+    char *path = NULL;
+    int ret = -1;
+
+    if (asprintf(&path, "%s.pub", private_key_path) < 0)
+        goto out;
+
+    if (convert_to_mincrypt_format(private_key, &pkey) < 0)
+        goto out;
+
+    bfile = BIO_new_file(path, "w");
+    if (!bfile)
+        goto out;
+
+    BIO_write(bfile, &pkey, sizeof(pkey));
+    BIO_flush(bfile);
+
+    ret = 0;
+out:
+    BIO_free_all(bfile);
+    free(path);
+    return ret;
+}
+
+static int generate_key(const char *file)
+{
+    int ret = -1;
+    FILE *f = NULL;
+    RSA* rsa = RSA_new();
+    BIGNUM* exponent = BN_new();
+    EVP_PKEY* pkey = EVP_PKEY_new();
+
+    if (!pkey || !exponent || !rsa) {
+        printf("Failed to allocate key\n");
+        goto out;
+    }
+
+    BN_set_word(exponent, RSA_F4);
+    RSA_generate_key_ex(rsa, 2048, exponent, NULL);
+    EVP_PKEY_set1_RSA(pkey, rsa);
+
+    f = fopen(file, "w");
+    if (!f) {
+        printf("Failed to open '%s'\n", file);
+        goto out;
+    }
+
+    if (!PEM_write_PrivateKey(f, pkey, NULL, NULL, 0, NULL, NULL)) {
+        printf("Failed to write key\n");
+        goto out;
+    }
+
+    if (write_public_keyfile(rsa, file) < 0) {
+        printf("Failed to write public key\n");
+        goto out;
+    }
+
+    ret = 0;
+
+out:
+    if (f)
+        fclose(f);
+    EVP_PKEY_free(pkey);
+    RSA_free(rsa);
+    BN_free(exponent);
+    return ret;
+}
+
+static void usage(){
+    printf("Usage: generate_verity_key <path-to-key>");
+}
+
+int main(int argc, char *argv[]) {
+    if (argc != 2) {
+        usage();
+        exit(-1);
+    }
+    return generate_key(argv[1]);
+}
\ No newline at end of file
diff --git a/verity/syspatch.c b/verity/syspatch.c
new file mode 100644
index 0000000..7e3909d
--- /dev/null
+++ b/verity/syspatch.c
@@ -0,0 +1,61 @@
+/*
+ * 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.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "LzmaDec.h"
+
+void usage()
+{
+    fprintf(stderr, "Usage: syspatch <patch> <target>\n");
+}
+
+int main(int argc, char *argv[])
+{
+    char *patch_path;
+    char *target_path;
+
+    int patch_fd;
+    int target_fd;
+
+    if (argc == 3) {
+        patch_path = argv[1];
+        target_path = argv[2];
+    } else {
+        usage();
+        exit(-1);
+    }
+
+    patch_fd = open(patch_path, O_RDONLY);
+    if (patch_fd < 0) {
+        fprintf(stderr, "Couldn't open patch file (%s)\n", strerror(errno));
+        exit(-1);
+    }
+
+    target_fd = open(target_path, O_RDWR);
+    if (target_fd < 0) {
+        fprintf(stderr, "Couldn't open target file (%s)\n", strerror(errno));
+        exit(-1);
+    }
+
+    close(patch_fd);
+    close(target_fd);
+    exit(0);
+}
diff --git a/verity/verity_signer b/verity/verity_signer
new file mode 100755
index 0000000..a4f337a
--- /dev/null
+++ b/verity/verity_signer
@@ -0,0 +1,8 @@
+#! /bin/sh
+
+# Start-up script for VeritySigner
+
+VERITYSIGNER_HOME=`dirname "$0"`
+VERITYSIGNER_HOME=`dirname "$VERITYSIGNER_HOME"`
+
+java -Xmx512M -jar "$VERITYSIGNER_HOME"/framework/VeritySigner.jar "$@"
\ No newline at end of file