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      1 # Copyright (C) 2014 The Android Open Source Project
      2 #
      3 # Licensed under the Apache License, Version 2.0 (the "License");
      4 # you may not use this file except in compliance with the License.
      5 # You may obtain a copy of the License at
      6 #
      7 #      http://www.apache.org/licenses/LICENSE-2.0
      8 #
      9 # Unless required by applicable law or agreed to in writing, software
     10 # distributed under the License is distributed on an "AS IS" BASIS,
     11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 # See the License for the specific language governing permissions and
     13 # limitations under the License.
     14 #
     15 
     16 # this file is used to prepare the NDK to build with the arm64 gcc-4.9
     17 # toolchain any number of source files
     18 #
     19 # its purpose is to define (or re-define) templates used to build
     20 # various sources into target object files, libraries or executables.
     21 #
     22 # Note that this file may end up being parsed several times in future
     23 # revisions of the NDK.
     24 #
     25 
     26 TOOLCHAIN_NAME   := aarch64-linux-android-4.9
     27 TOOLCHAIN_PREFIX := $(TOOLCHAIN_PREBUILT_ROOT)/bin/aarch64-linux-android-
     28 
     29 TARGET_CFLAGS := \
     30     -fpic \
     31     -ffunction-sections \
     32     -funwind-tables \
     33     -fstack-protector-strong \
     34     -no-canonical-prefixes
     35 
     36 TARGET_LDFLAGS := -no-canonical-prefixes
     37 
     38 TARGET_arm64_release_CFLAGS := -O2 \
     39                                -g \
     40                                -DNDEBUG \
     41                                -fomit-frame-pointer \
     42                                -fstrict-aliasing    \
     43                                -funswitch-loops     \
     44                                -finline-limit=300
     45 
     46 TARGET_arm64_debug_CFLAGS := $(TARGET_arm64_release_CFLAGS) \
     47                              -O0 \
     48                              -UNDEBUG \
     49                              -fno-omit-frame-pointer \
     50                              -fno-strict-aliasing
     51 
     52 # This function will be called to determine the target CFLAGS used to build
     53 # a C or Assembler source file, based on its tags.
     54 #
     55 TARGET-process-src-files-tags = \
     56 $(eval __debug_sources := $(call get-src-files-with-tag,debug)) \
     57 $(eval __release_sources := $(call get-src-files-without-tag,debug)) \
     58 $(call set-src-files-target-cflags, $(__debug_sources), $(TARGET_arm64_debug_CFLAGS)) \
     59 $(call set-src-files-target-cflags, $(__release_sources),$(TARGET_arm64_release_CFLAGS)) \
     60