target/board/generic/BoardConfig.mk

# config.mk
#
# Product-specific compile-time definitions.
#

# The generic product target doesn't have any hardware-specific pieces.
TARGET_NO_BOOTLOADER := true
TARGET_NO_KERNEL := true
TARGET_ARCH := arm

# Note: we build the platform images for ARMv7-A _without_ NEON.
#
# Technically, the emulator supports ARMv7-A _and_ NEON instructions, but
# emulated NEON code paths typically ends up 2x slower than the normal C code
# it is supposed to replace (unlike on real devices where it is 2x to 3x
# faster).
#
# What this means is that the platform image will not use NEON code paths
# that are slower to emulate. On the other hand, it is possible to emulate
# application code generated with the NDK that uses NEON in the emulator.
#
TARGET_ARCH_VARIANT := armv7-a
TARGET_CPU_VARIANT := generic
TARGET_CPU_ABI := armeabi-v7a
TARGET_CPU_ABI2 := armeabi

HAVE_HTC_AUDIO_DRIVER := true
BOARD_USES_GENERIC_AUDIO := true

# no hardware camera
USE_CAMERA_STUB := true

# Enable dex-preoptimization to speed up the first boot sequence
# of an SDK AVD. Note that this operation only works on Linux for now
ifeq ($(HOST_OS),linux)
  ifeq ($(WITH_DEXPREOPT),)
    WITH_DEXPREOPT := true
  endif
endif

# Build OpenGLES emulation guest and host libraries
BUILD_EMULATOR_OPENGL := true

# Build and enable the OpenGL ES View renderer. When running on the emulator,
# the GLES renderer disables itself if host GL acceleration isn't available.
USE_OPENGL_RENDERER := true

# Set the phase offset of the system's vsync event relative to the hardware
# vsync. The system's vsync event drives Choreographer and SurfaceFlinger's
# rendering. This value is the number of nanoseconds after the hardware vsync
# that the system vsync event will occur.
#
# This phase offset allows adjustment of the minimum latency from application
# wake-up (by Choregographer) time to the time at which the resulting window
# image is displayed.  This value may be either positive (after the HW vsync)
# or negative (before the HW vsync).  Setting it to 0 will result in a
# minimum latency of two vsync periods because the app and SurfaceFlinger
# will run just after the HW vsync.  Setting it to a positive number will
# result in the minimum latency being:
#
#     (2 * VSYNC_PERIOD - (vsyncPhaseOffsetNs % VSYNC_PERIOD))
#
# Note that reducing this latency makes it more likely for the applications
# to not have their window content image ready in time.  When this happens
# the latency will end up being an additional vsync period, and animations
# will hiccup.  Therefore, this latency should be tuned somewhat
# conservatively (or at least with awareness of the trade-off being made).
VSYNC_EVENT_PHASE_OFFSET_NS := 0

TARGET_USERIMAGES_USE_EXT4 := true
BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1879048192  # 1.75 GB
BOARD_USERDATAIMAGE_PARTITION_SIZE := 576716800
BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
BOARD_FLASH_BLOCK_SIZE := 512
TARGET_USERIMAGES_SPARSE_EXT_DISABLED := true

BOARD_SEPOLICY_DIRS += build/target/board/generic/sepolicy

ifeq ($(TARGET_PRODUCT),sdk)
  # include an expanded selection of fonts for the SDK.
  EXTENDED_FONT_FOOTPRINT := true
endif