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# Copyright (C) 2009 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.
#
# this file is used to prepare the NDK to build with the arm clang-3.1
# toolchain any number of source files
#
# its purpose is to define (or re-define) templates used to build
# various sources into target object files, libraries or executables.
#
# Note that this file may end up being parsed several times in future
# revisions of the NDK.
#
#
# Override the toolchain prefix
#
LLVM_VERSION := 3.1
LLVM_NAME := llvm-$(LLVM_VERSION)
LLVM_TOOLCHAIN_ROOT := $(NDK_ROOT)/toolchains/$(LLVM_NAME)
LLVM_TOOLCHAIN_PREBUILT_ROOT := $(call host-prebuilt-tag,$(LLVM_TOOLCHAIN_ROOT))
LLVM_TOOLCHAIN_PREFIX := $(LLVM_TOOLCHAIN_PREBUILT_ROOT)/bin/
TOOLCHAIN_VERSION := 4.6
TOOLCHAIN_NAME := arm-linux-androideabi-$(TOOLCHAIN_VERSION)
TOOLCHAIN_ROOT := $(NDK_ROOT)/toolchains/$(TOOLCHAIN_NAME)
TOOLCHAIN_PREBUILT_ROOT := $(call host-prebuilt-tag,$(TOOLCHAIN_ROOT))
TOOLCHAIN_PREFIX := $(TOOLCHAIN_PREBUILT_ROOT)/bin/arm-linux-androideabi-
TARGET_CC := $(LLVM_TOOLCHAIN_PREFIX)clang
TARGET_CXX := $(LLVM_TOOLCHAIN_PREFIX)clang++
#
# CFLAGS and LDFLAGS
#
TARGET_CFLAGS := \
-gcc-toolchain $(call host-path,$(TOOLCHAIN_PREBUILT_ROOT)) \
-fpic \
-ffunction-sections \
-funwind-tables \
-fstack-protector \
-D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ \
-D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ \
-no-canonical-prefixes
TARGET_LDFLAGS := \
-gcc-toolchain $(call host-path,$(TOOLCHAIN_PREBUILT_ROOT)) \
-no-canonical-prefixes
TARGET_C_INCLUDES := \
$(SYSROOT)/usr/include
ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
LLVM_TRIPLE := armv7-none-linux-androideabi
TARGET_CFLAGS += -target $(LLVM_TRIPLE) \
-march=armv7-a \
-mfloat-abi=softfp \
-mfpu=vfpv3-d16
TARGET_LDFLAGS += -target $(LLVM_TRIPLE) \
-Wl,--fix-cortex-a8
else
LLVM_TRIPLE := armv5te-none-linux-androideabi
TARGET_CFLAGS += -target $(LLVM_TRIPLE) \
-march=armv5te \
-mtune=xscale \
-msoft-float
TARGET_LDFLAGS += -target $(LLVM_TRIPLE)
endif
TARGET_CFLAGS.neon := -mfpu=neon
TARGET_arm_release_CFLAGS := -O2 \
-g \
-DNDEBUG \
-fomit-frame-pointer \
-fstrict-aliasing
TARGET_thumb_release_CFLAGS := -mthumb \
-Os \
-g \
-DNDEBUG \
-fomit-frame-pointer \
-fno-strict-aliasing
# When building for debug, compile everything as arm.
TARGET_arm_debug_CFLAGS := $(TARGET_arm_release_CFLAGS) \
-O0 \
-UNDEBUG \
-fno-omit-frame-pointer \
-fno-strict-aliasing
TARGET_thumb_debug_CFLAGS := $(TARGET_thumb_release_CFLAGS) \
-O0 \
-UNDEBUG \
-marm \
-fno-omit-frame-pointer
# This function will be called to determine the target CFLAGS used to build
# a C or Assembler source file, based on its tags.
#
TARGET-process-src-files-tags = \
$(eval __arm_sources := $(call get-src-files-with-tag,arm)) \
$(eval __thumb_sources := $(call get-src-files-without-tag,arm)) \
$(eval __debug_sources := $(call get-src-files-with-tag,debug)) \
$(eval __release_sources := $(call get-src-files-without-tag,debug)) \
$(call set-src-files-target-cflags, \
$(call set_intersection,$(__arm_sources),$(__debug_sources)), \
$(TARGET_arm_debug_CFLAGS)) \
$(call set-src-files-target-cflags,\
$(call set_intersection,$(__arm_sources),$(__release_sources)),\
$(TARGET_arm_release_CFLAGS)) \
$(call set-src-files-target-cflags,\
$(call set_intersection,$(__arm_sources),$(__debug_sources)),\
$(TARGET_arm_debug_CFLAGS)) \
$(call set-src-files-target-cflags,\
$(call set_intersection,$(__thumb_sources),$(__release_sources)),\
$(TARGET_thumb_release_CFLAGS)) \
$(call set-src-files-target-cflags,\
$(call set_intersection,$(__thumb_sources),$(__debug_sources)),\
$(TARGET_thumb_debug_CFLAGS)) \
$(call add-src-files-target-cflags,\
$(call get-src-files-with-tag,neon),\
$(TARGET_CFLAGS.neon)) \
$(call set-src-files-text,$(__arm_sources),arm$(space)$(space)) \
$(call set-src-files-text,$(__thumb_sources),thumb)
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