# Copyright 2012 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
#       copyright notice, this list of conditions and the following
#       disclaimer in the documentation and/or other materials provided
#       with the distribution.
#     * Neither the name of Google Inc. nor the names of its
#       contributors may be used to endorse or promote products derived
#       from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Those definitions should be consistent with the main Makefile
ANDROID_ARCHES = android_ia32 android_x64 android_arm android_arm64 \
		 android_mipsel android_x87
MODES = release debug

# Generates all combinations of ANDROID ARCHES and MODES,
# e.g. "android_ia32.release" or "android_arm.release"
ANDROID_BUILDS = $(foreach mode,$(MODES), \
                   $(addsuffix .$(mode),$(ANDROID_ARCHES)))

HOST_OS = $(shell uname -s | sed -e 's/Linux/linux/;s/Darwin/darwin/')
HOST_ARCH = $(shell uname -m | sed -e 's/i[3456]86/x86/')

ifeq ($(ARCH), android_arm)
  DEFINES  = target_arch=arm v8_target_arch=arm
  ANDROID_TOOLCHAIN = $(ANDROID_NDK_ROOT)/toolchains/arm-linux-androideabi-4.9/prebuilt/$(HOST_OS)-$(HOST_ARCH)/arm-linux-androideabi/bin
else ifeq ($(ARCH), android_arm64)
  DEFINES  = target_arch=arm64 v8_target_arch=arm64
  ANDROID_TOOLCHAIN = $(ANDROID_NDK_ROOT)/toolchains/aarch64-linux-android-4.9/prebuilt/$(HOST_OS)-$(HOST_ARCH)/aarch64-linux-android/bin
else ifeq ($(ARCH), android_mipsel)
  DEFINES  = target_arch=mipsel v8_target_arch=mipsel
  ANDROID_TOOLCHAIN = $(ANDROID_NDK_ROOT)/toolchains/mipsel-linux-android-4.9/prebuilt/$(HOST_OS)-$(HOST_ARCH)/mipsel-linux-android/bin
else ifeq ($(ARCH), android_ia32)
  DEFINES = target_arch=ia32 v8_target_arch=ia32
  ANDROID_TOOLCHAIN = $(ANDROID_NDK_ROOT)/toolchains/x86-4.9/prebuilt/$(HOST_OS)-$(HOST_ARCH)/i686-linux-android/bin
else ifeq ($(ARCH), android_x64)
  DEFINES = target_arch=x64 v8_target_arch=x64
  ANDROID_TOOLCHAIN = $(ANDROID_NDK_ROOT)/toolchains/x86_64-4.9/prebuilt/$(HOST_OS)-$(HOST_ARCH)/x86_64-linux-android/bin
else ifeq ($(ARCH), android_x87)
  DEFINES = target_arch=ia32 v8_target_arch=x87
  ANDROID_TOOLCHAIN = $(ANDROID_NDK_ROOT)/toolchains/x86-4.9/prebuilt/$(HOST_OS)-$(HOST_ARCH)/i686-linux-android/bin
else
  $(error Target architecture "${ARCH}" is not supported)
endif

# Common flags.
DEFINES += OS=android

.SECONDEXPANSION:
$(ANDROID_BUILDS): $(OUTDIR)/Makefile.$$@
	@$(MAKE) -C "$(OUTDIR)" -f Makefile.$@ \
	          AR="$(ANDROID_TOOLCHAIN)/ar" \
	          BUILDTYPE=$(shell echo $(subst .,,$(suffix $@)) | \
	                      python -c "print raw_input().capitalize()") \
	          builddir="$(shell pwd)/$(OUTDIR)/$@"

# Android GYP file generation targets.
ANDROID_MAKEFILES = $(addprefix $(OUTDIR)/Makefile.,$(ANDROID_BUILDS))
$(ANDROID_MAKEFILES):
	GYP_GENERATORS=make-android \
	GYP_DEFINES="${DEFINES}" \
	PYTHONPATH="$(shell pwd)/tools/generate_shim_headers:$(shell pwd)/build:$(PYTHONPATH)" \
	tools/gyp/gyp --generator-output="${OUTDIR}" gypfiles/all.gyp \
	              -Igypfiles/standalone.gypi --depth=. \
	              -S$(suffix $(basename $@))$(suffix $@) ${GYPFLAGS}