logd: liblog: logcat: Add LogWhiteBlackList

- liblog android_logger_get_log_size and android_logger_get_readable_size
  adjusted to return long instead of int because of -G flag extending range

NB: ifdef'd only for userdebug and eng builds

- liblog Add android_logger_[sg]et_prune_list and android_logger_set_log_size
- logcat Add -P, -p and -G flags
- logd Add LogWhiteBlackList and configurable log size

(cherry picked from commit 18a5432158ad43b8faefe4950b30e760200ce0b4)

Change-Id: I1572338c1b34bd968ad7867857ef708156ec3b6a
diff --git a/liblog/Android.mk b/liblog/Android.mk
index c18dc48..4fe20db 100644
--- a/liblog/Android.mk
+++ b/liblog/Android.mk
@@ -22,6 +22,10 @@
 liblog_sources := logd_write_kern.c
 endif
 
+ifneq ($(filter userdebug eng,$(TARGET_BUILD_VARIANT)),)
+liblog_cflags := -DUSERDEBUG_BUILD=1
+endif
+
 # some files must not be compiled when building against Mingw
 # they correspond to features not used by our host development tools
 # which are also hard or even impossible to port to native Win32
@@ -80,11 +84,13 @@
 include $(CLEAR_VARS)
 LOCAL_MODULE := liblog
 LOCAL_SRC_FILES := $(liblog_target_sources)
+LOCAL_CFLAGS := $(liblog_cflags)
 include $(BUILD_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_MODULE := liblog
 LOCAL_WHOLE_STATIC_LIBRARIES := liblog
+LOCAL_CFLAGS := $(liblog_cflags)
 include $(BUILD_SHARED_LIBRARY)
 
 include $(call first-makefiles-under,$(LOCAL_PATH))