diff --git a/adb/usb_vendors.c b/adb/usb_vendors.c
index 90542e8..1b8310f 100755
--- a/adb/usb_vendors.c
+++ b/adb/usb_vendors.c
@@ -38,6 +38,8 @@
 /* Keep the list below sorted alphabetically by #define name */
 // Acer's USB Vendor ID
 #define VENDOR_ID_ACER          0x0502
+// Alco's  USB Vendor ID
+#define VENDOR_ID_ALCO          0x1914
 // Allwinner's USB Vendor ID
 #define VENDOR_ID_ALLWINNER     0x1F3A
 // Amlogic's USB Vendor ID
@@ -202,6 +204,7 @@
 /* Keep the list below sorted alphabetically */
 int builtInVendorIds[] = {
     VENDOR_ID_ACER,
+    VENDOR_ID_ALCO,
     VENDOR_ID_ALLWINNER,
     VENDOR_ID_AMLOGIC,
     VENDOR_ID_ANYDATA,
diff --git a/fastbootd/vendor_trigger_default.c b/fastbootd/vendor_trigger_default.c
index 3627024..0bcc99b 100644
--- a/fastbootd/vendor_trigger_default.c
+++ b/fastbootd/vendor_trigger_default.c
@@ -52,7 +52,7 @@
     return 0;
 }
 
-int trigger_oem_cmd(const char *arg, const char **response) {
+int trigger_oem_cmd(const char *arg, const char **response __unused) {
     KLOG_DEBUG("fastbootd", "%s: %s", __func__, arg);
     return 0;
 }
diff --git a/fs_mgr/fs_mgr_verity.c b/fs_mgr/fs_mgr_verity.c
index c9a2a9b..1d2e43f 100644
--- a/fs_mgr/fs_mgr_verity.c
+++ b/fs_mgr/fs_mgr_verity.c
@@ -120,7 +120,9 @@
 {
     int data_device;
     struct ext4_super_block sb;
-    struct fs_info info = {0};
+    struct fs_info info;
+
+    info.len = 0;  /* Only len is set to 0 to ask the device for real size. */
 
     data_device = open(blk_device, O_RDONLY);
     if (data_device < 0) {
diff --git a/include/log/logprint.h b/include/log/logprint.h
index 481c96e..1e42b47 100644
--- a/include/log/logprint.h
+++ b/include/log/logprint.h
@@ -36,6 +36,7 @@
     FORMAT_TIME,
     FORMAT_THREADTIME,
     FORMAT_LONG,
+    FORMAT_COLOR,
 } AndroidLogPrintFormat;
 
 typedef struct AndroidLogFormat_t AndroidLogFormat;
diff --git a/libcutils/Android.mk b/libcutils/Android.mk
index 12a3bf9..5a4be93 100644
--- a/libcutils/Android.mk
+++ b/libcutils/Android.mk
@@ -151,7 +151,7 @@
 
 LOCAL_C_INCLUDES := $(libcutils_c_includes)
 LOCAL_STATIC_LIBRARIES := liblog
-LOCAL_CFLAGS += $(targetSmpFlag) -Werror
+LOCAL_CFLAGS += $(targetSmpFlag) -Werror -std=gnu90
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 include $(BUILD_STATIC_LIBRARY)
 
diff --git a/libcutils/tests/Android.mk b/libcutils/tests/Android.mk
index 8e65310..2b3a9ee 100644
--- a/libcutils/tests/Android.mk
+++ b/libcutils/tests/Android.mk
@@ -19,6 +19,7 @@
     PropertiesTest.cpp \
 
 include $(CLEAR_VARS)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 LOCAL_MODULE := libcutils_test
 LOCAL_SRC_FILES := $(test_src_files)
 LOCAL_SHARED_LIBRARIES := \
@@ -32,6 +33,7 @@
 include $(BUILD_NATIVE_TEST)
 
 include $(CLEAR_VARS)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 LOCAL_MODULE := libcutils_test_static
 LOCAL_FORCE_STATIC_EXECUTABLE := true
 LOCAL_SRC_FILES := $(test_src_files)
diff --git a/liblog/logprint.c b/liblog/logprint.c
index 08e830a..244f723 100644
--- a/liblog/logprint.c
+++ b/liblog/logprint.c
@@ -21,10 +21,12 @@
 #include <assert.h>
 #include <ctype.h>
 #include <errno.h>
+#include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/param.h>
 
 #include <log/logd.h>
 #include <log/logprint.h>
@@ -39,8 +41,23 @@
     android_LogPriority global_pri;
     FilterInfo *filters;
     AndroidLogPrintFormat format;
+    bool colored_output;
 };
 
+/*
+ *  gnome-terminal color tags
+ *    See http://misc.flogisoft.com/bash/tip_colors_and_formatting
+ *    for ideas on how to set the forground color of the text for xterm.
+ *    The color manipulation character stream is defined as:
+ *      ESC [ 3 8 ; 5 ; <color#> m
+ */
+#define ANDROID_COLOR_BLUE     75
+#define ANDROID_COLOR_DEFAULT 231
+#define ANDROID_COLOR_GREEN    40
+#define ANDROID_COLOR_ORANGE  166
+#define ANDROID_COLOR_RED     196
+#define ANDROID_COLOR_YELLOW  226
+
 static FilterInfo * filterinfo_new(const char * tag, android_LogPriority pri)
 {
     FilterInfo *p_ret;
@@ -110,6 +127,23 @@
     }
 }
 
+static int colorFromPri (android_LogPriority pri)
+{
+    switch (pri) {
+        case ANDROID_LOG_VERBOSE:       return ANDROID_COLOR_DEFAULT;
+        case ANDROID_LOG_DEBUG:         return ANDROID_COLOR_BLUE;
+        case ANDROID_LOG_INFO:          return ANDROID_COLOR_GREEN;
+        case ANDROID_LOG_WARN:          return ANDROID_COLOR_ORANGE;
+        case ANDROID_LOG_ERROR:         return ANDROID_COLOR_RED;
+        case ANDROID_LOG_FATAL:         return ANDROID_COLOR_RED;
+        case ANDROID_LOG_SILENT:        return ANDROID_COLOR_DEFAULT;
+
+        case ANDROID_LOG_DEFAULT:
+        case ANDROID_LOG_UNKNOWN:
+        default:                        return ANDROID_COLOR_DEFAULT;
+    }
+}
+
 static android_LogPriority filterPriForTag(
         AndroidLogFormat *p_format, const char *tag)
 {
@@ -149,6 +183,7 @@
 
     p_ret->global_pri = ANDROID_LOG_VERBOSE;
     p_ret->format = FORMAT_BRIEF;
+    p_ret->colored_output = false;
 
     return p_ret;
 }
@@ -174,7 +209,10 @@
 void android_log_setPrintFormat(AndroidLogFormat *p_format,
         AndroidLogPrintFormat format)
 {
-    p_format->format=format;
+    if (format == FORMAT_COLOR)
+        p_format->colored_output = true;
+    else
+        p_format->format = format;
 }
 
 /**
@@ -192,6 +230,7 @@
     else if (strcmp(formatString, "time") == 0) format = FORMAT_TIME;
     else if (strcmp(formatString, "threadtime") == 0) format = FORMAT_THREADTIME;
     else if (strcmp(formatString, "long") == 0) format = FORMAT_LONG;
+    else if (strcmp(formatString, "color") == 0) format = FORMAT_COLOR;
     else format = FORMAT_OFF;
 
     return format;
@@ -698,6 +737,8 @@
     char * ret = NULL;
 
     priChar = filterPriToChar(entry->priority);
+    size_t prefixLen = 0, suffixLen = 0;
+    size_t len;
 
     /*
      * Get the current date/time in pretty form
@@ -719,73 +760,80 @@
     /*
      * Construct a buffer containing the log header and log message.
      */
-    size_t prefixLen, suffixLen;
+    if (p_format->colored_output) {
+        prefixLen = snprintf(prefixBuf, sizeof(prefixBuf), "\x1B[38;5;%dm",
+                             colorFromPri(entry->priority));
+        prefixLen = MIN(prefixLen, sizeof(prefixBuf));
+        suffixLen = snprintf(suffixBuf, sizeof(suffixBuf), "\x1B[0m");
+        suffixLen = MIN(suffixLen, sizeof(suffixBuf));
+    }
 
     switch (p_format->format) {
         case FORMAT_TAG:
-            prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
+            len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
                 "%c/%-8s: ", priChar, entry->tag);
-            strcpy(suffixBuf, "\n"); suffixLen = 1;
+            strcpy(suffixBuf + suffixLen, "\n");
+            ++suffixLen;
             break;
         case FORMAT_PROCESS:
-            prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
-                "%c(%5d) ", priChar, entry->pid);
-            suffixLen = snprintf(suffixBuf, sizeof(suffixBuf),
+            len = snprintf(suffixBuf + suffixLen, sizeof(suffixBuf) - suffixLen,
                 "  (%s)\n", entry->tag);
+            suffixLen += MIN(len, sizeof(suffixBuf) - suffixLen);
+            len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
+                "%c(%5d) ", priChar, entry->pid);
             break;
         case FORMAT_THREAD:
-            prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
+            len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
                 "%c(%5d:%5d) ", priChar, entry->pid, entry->tid);
-            strcpy(suffixBuf, "\n");
-            suffixLen = 1;
+            strcpy(suffixBuf + suffixLen, "\n");
+            ++suffixLen;
             break;
         case FORMAT_RAW:
-            prefixBuf[0] = 0;
-            prefixLen = 0;
-            strcpy(suffixBuf, "\n");
-            suffixLen = 1;
+            prefixBuf[prefixLen] = 0;
+            len = 0;
+            strcpy(suffixBuf + suffixLen, "\n");
+            ++suffixLen;
             break;
         case FORMAT_TIME:
-            prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
+            len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
                 "%s.%03ld %c/%-8s(%5d): ", timeBuf, entry->tv_nsec / 1000000,
                 priChar, entry->tag, entry->pid);
-            strcpy(suffixBuf, "\n");
-            suffixLen = 1;
+            strcpy(suffixBuf + suffixLen, "\n");
+            ++suffixLen;
             break;
         case FORMAT_THREADTIME:
-            prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
+            len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
                 "%s.%03ld %5d %5d %c %-8s: ", timeBuf, entry->tv_nsec / 1000000,
                 entry->pid, entry->tid, priChar, entry->tag);
-            strcpy(suffixBuf, "\n");
-            suffixLen = 1;
+            strcpy(suffixBuf + suffixLen, "\n");
+            ++suffixLen;
             break;
         case FORMAT_LONG:
-            prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
+            len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
                 "[ %s.%03ld %5d:%5d %c/%-8s ]\n",
                 timeBuf, entry->tv_nsec / 1000000, entry->pid,
                 entry->tid, priChar, entry->tag);
-            strcpy(suffixBuf, "\n\n");
-            suffixLen = 2;
+            strcpy(suffixBuf + suffixLen, "\n\n");
+            suffixLen += 2;
             prefixSuffixIsHeaderFooter = 1;
             break;
         case FORMAT_BRIEF:
         default:
-            prefixLen = snprintf(prefixBuf, sizeof(prefixBuf),
+            len = snprintf(prefixBuf + prefixLen, sizeof(prefixBuf) - prefixLen,
                 "%c/%-8s(%5d): ", priChar, entry->tag, entry->pid);
-            strcpy(suffixBuf, "\n");
-            suffixLen = 1;
+            strcpy(suffixBuf + suffixLen, "\n");
+            ++suffixLen;
             break;
     }
+
     /* snprintf has a weird return value.   It returns what would have been
      * written given a large enough buffer.  In the case that the prefix is
      * longer then our buffer(128), it messes up the calculations below
      * possibly causing heap corruption.  To avoid this we double check and
      * set the length at the maximum (size minus null byte)
      */
-    if(prefixLen >= sizeof(prefixBuf))
-        prefixLen = sizeof(prefixBuf) - 1;
-    if(suffixLen >= sizeof(suffixBuf))
-        suffixLen = sizeof(suffixBuf) - 1;
+    prefixLen += MIN(len, sizeof(prefixBuf) - prefixLen);
+    suffixLen = MIN(suffixLen, sizeof(suffixLen));
 
     /* the following code is tragically unreadable */
 
diff --git a/liblog/tests/Android.mk b/liblog/tests/Android.mk
index 6c72138..b1426d3 100644
--- a/liblog/tests/Android.mk
+++ b/liblog/tests/Android.mk
@@ -43,11 +43,8 @@
 LOCAL_CFLAGS += $(benchmark_c_flags)
 LOCAL_SHARED_LIBRARIES += liblog libm
 LOCAL_SRC_FILES := $(benchmark_src_files)
-ifndef LOCAL_SDK_VERSION
-LOCAL_C_INCLUDES += bionic bionic/libstdc++/include external/stlport/stlport
-LOCAL_SHARED_LIBRARIES += libstlport
-endif
 LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_NATIVE_TESTS)/$(LOCAL_MODULE)
+include external/stlport/libstlport.mk
 include $(BUILD_EXECUTABLE)
 
 # -----------------------------------------------------------------------------
@@ -59,7 +56,8 @@
     -g \
     -Wall -Wextra \
     -Werror \
-    -fno-builtin
+    -fno-builtin \
+    -std=gnu++11
 
 test_src_files := \
     liblog_test.cpp
diff --git a/libpixelflinger/codeflinger/CodeCache.cpp b/libpixelflinger/codeflinger/CodeCache.cpp
index cfd2b370..d770302 100644
--- a/libpixelflinger/codeflinger/CodeCache.cpp
+++ b/libpixelflinger/codeflinger/CodeCache.cpp
@@ -201,8 +201,8 @@
         mCacheInUse += assemblySize;
         mWhen++;
         // synchronize caches...
-        void* base = assembly->base();
-        void* curr = (uint8_t*)base + assembly->size();
+        char* base = reinterpret_cast<char*>(assembly->base());
+        char* curr = reinterpret_cast<char*>(base + assembly->size());
         __builtin___clear_cache(base, curr);
     }
 
diff --git a/libutils/Android.mk b/libutils/Android.mk
index 0c8625c..b55e635 100644
--- a/libutils/Android.mk
+++ b/libutils/Android.mk
@@ -93,8 +93,7 @@
 LOCAL_CFLAGS += -Werror
 
 LOCAL_C_INCLUDES += \
-		bionic/libc \
-		external/zlib
+	external/zlib
 
 LOCAL_STATIC_LIBRARIES := \
 	libcutils
diff --git a/libutils/Threads.cpp b/libutils/Threads.cpp
index 03fde97..9bcd063 100644
--- a/libutils/Threads.cpp
+++ b/libutils/Threads.cpp
@@ -28,9 +28,6 @@
 # include <pthread.h>
 # include <sched.h>
 # include <sys/resource.h>
-#ifdef HAVE_ANDROID_OS
-# include <private/bionic_pthread.h>
-#endif
 #elif defined(HAVE_WIN32_THREADS)
 # include <windows.h>
 # include <stdint.h>
@@ -855,7 +852,7 @@
     pid_t tid;
     if (mRunning) {
         pthread_t pthread = android_thread_id_t_to_pthread(mThread);
-        tid = __pthread_gettid(pthread);
+        tid = pthread_gettid_np(pthread);
     } else {
         ALOGW("Thread (this=%p): getTid() is undefined before run()", this);
         tid = -1;
diff --git a/libutils/tests/Android.mk b/libutils/tests/Android.mk
index caedaff..ab03d87 100644
--- a/libutils/tests/Android.mk
+++ b/libutils/tests/Android.mk
@@ -1,6 +1,5 @@
 # Build the unit tests.
 LOCAL_PATH := $(call my-dir)
-include $(CLEAR_VARS)
 
 # Build the unit tests.
 test_src_files := \
@@ -18,11 +17,6 @@
     liblog \
     libcutils \
     libutils \
-    libstlport
-
-static_libraries := \
-    libgtest \
-    libgtest_main
 
 $(foreach file,$(test_src_files), \
     $(eval include $(CLEAR_VARS)) \
diff --git a/logcat/logcat.cpp b/logcat/logcat.cpp
index 858e56c..fecbdb7 100644
--- a/logcat/logcat.cpp
+++ b/logcat/logcat.cpp
@@ -219,8 +219,8 @@
                     "  -f <filename>   Log to file. Default to stdout\n"
                     "  -r [<kbytes>]   Rotate log every kbytes. (16 if unspecified). Requires -f\n"
                     "  -n <count>      Sets max number of rotated logs to <count>, default 4\n"
-                    "  -v <format>     Sets the log print format, where <format> is one of:\n\n"
-                    "                  brief process tag thread raw time threadtime long\n\n"
+                    "  -v <format>     Sets the log print format, where <format> is:\n\n"
+                    "                  brief color long process raw tag thread threadtime time\n\n"
                     "  -c              clear (flush) the entire log and exit\n"
                     "  -d              dump the log and then exit (don't block)\n"
                     "  -t <count>      print only the most recent <count> lines (implies -d)\n"