build/core/toolchains/arm-linux-androideabi-clang/setup.mk

# Copyright (C) 2014 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 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
#

TOOLCHAIN_NAME := arm-linux-androideabi
TOOLCHAIN_ROOT := $(call get-toolchain-root,$(TOOLCHAIN_NAME)-4.9)
TOOLCHAIN_PREFIX := $(TOOLCHAIN_ROOT)/bin/$(TOOLCHAIN_NAME)-

#
# CFLAGS and LDFLAGS
#

TARGET_ASAN_BASENAME := libclang_rt.asan-arm-android.so
TARGET_UBSAN_BASENAME := libclang_rt.ubsan_standalone-arm-android.so

TARGET_CFLAGS := \
    -gcc-toolchain $(call host-path,$(TOOLCHAIN_ROOT)) \
    -fpic \
    -march=armv7-a \
    -mfloat-abi=softfp \
    -mfpu=vfpv3-d16 \

TARGET_LDFLAGS += \
    -gcc-toolchain $(call host-path,$(TOOLCHAIN_ROOT)) \
    -Wl,--fix-cortex-a8 \

LLVM_TRIPLE := armv7-none-linux-androideabi

GCCLIB_SUBDIR := armv7-a

GCCLIB_ROOT := $(call get-gcclibs-path,$(NDK_ROOT),$(TOOLCHAIN_NAME))

TARGET_CFLAGS.neon := -mfpu=neon

TARGET_arm_release_CFLAGS := \
    -marm \
    -O2 \
    -DNDEBUG \

TARGET_thumb_release_CFLAGS := \
    -mthumb \
    -Oz \
    -DNDEBUG \

TARGET_arm_debug_CFLAGS := \
    -marm \
    -O0 \
    -UNDEBUG \
    -fno-limit-debug-info \

TARGET_thumb_debug_CFLAGS := \
    -mthumb \
    -O0 \
    -UNDEBUG \
    -fno-limit-debug-info \

# 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,\
    $(call set_intersection,$(__thumb_sources),$(__debug_sources)),\
    $(TARGET_thumb_debug_CFLAGS)) \
$(call set-src-files-target-cflags,\
    $(call set_intersection,$(__thumb_sources),$(__release_sources)),\
    $(TARGET_thumb_release_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) \
$(call set-src-files-text,$(__thumb_sources),thumb)