1# Copyright (C) 2009 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 arm 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 26TARGET_CFLAGS := \ 27 -fpic \ 28 -ffunction-sections \ 29 -funwind-tables \ 30 -fstack-protector-strong \ 31 -no-canonical-prefixes 32 33TARGET_LDFLAGS := -no-canonical-prefixes 34 35ifneq ($(filter $(TARGET_ARCH_ABI), armeabi-v7a armeabi-v7a-hard),) 36 TARGET_CFLAGS += -march=armv7-a \ 37 -mfpu=vfpv3-d16 38 TARGET_LDFLAGS += -march=armv7-a \ 39 -Wl,--fix-cortex-a8 40ifeq ($(TARGET_ARCH_ABI),armeabi-v7a) 41 TARGET_CFLAGS += -mfloat-abi=softfp 42else 43 TARGET_CFLAGS += -mhard-float \ 44 -D_NDK_MATH_NO_SOFTFP=1 45 TARGET_LDFLAGS += -Wl,--no-warn-mismatch \ 46 -lm_hard 47endif 48 49else 50 TARGET_CFLAGS += -march=armv5te \ 51 -mtune=xscale \ 52 -msoft-float 53endif 54 55TARGET_CFLAGS.neon := -mfpu=neon 56 57TARGET_arm_release_CFLAGS := -O2 \ 58 -g \ 59 -DNDEBUG \ 60 -fomit-frame-pointer \ 61 -fstrict-aliasing \ 62 -funswitch-loops \ 63 -finline-limit=300 64 65TARGET_thumb_release_CFLAGS := -mthumb \ 66 -Os \ 67 -g \ 68 -DNDEBUG \ 69 -fomit-frame-pointer \ 70 -fno-strict-aliasing \ 71 -finline-limit=64 72 73# When building for debug, compile everything as arm. 74TARGET_arm_debug_CFLAGS := $(TARGET_arm_release_CFLAGS) \ 75 -O0 \ 76 -UNDEBUG \ 77 -fno-omit-frame-pointer \ 78 -fno-strict-aliasing 79 80TARGET_thumb_debug_CFLAGS := $(TARGET_thumb_release_CFLAGS) \ 81 -O0 \ 82 -UNDEBUG \ 83 -marm \ 84 -fno-omit-frame-pointer 85 86# This function will be called to determine the target CFLAGS used to build 87# a C or Assembler source file, based on its tags. 88# 89TARGET-process-src-files-tags = \ 90$(eval __arm_sources := $(call get-src-files-with-tag,arm)) \ 91$(eval __thumb_sources := $(call get-src-files-without-tag,arm)) \ 92$(eval __debug_sources := $(call get-src-files-with-tag,debug)) \ 93$(eval __release_sources := $(call get-src-files-without-tag,debug)) \ 94$(call set-src-files-target-cflags, \ 95 $(call set_intersection,$(__arm_sources),$(__debug_sources)), \ 96 $(TARGET_arm_debug_CFLAGS)) \ 97$(call set-src-files-target-cflags,\ 98 $(call set_intersection,$(__arm_sources),$(__release_sources)),\ 99 $(TARGET_arm_release_CFLAGS)) \ 100$(call set-src-files-target-cflags,\ 101 $(call set_intersection,$(__arm_sources),$(__debug_sources)),\ 102 $(TARGET_arm_debug_CFLAGS)) \ 103$(call set-src-files-target-cflags,\ 104 $(call set_intersection,$(__thumb_sources),$(__release_sources)),\ 105 $(TARGET_thumb_release_CFLAGS)) \ 106$(call set-src-files-target-cflags,\ 107 $(call set_intersection,$(__thumb_sources),$(__debug_sources)),\ 108 $(TARGET_thumb_debug_CFLAGS)) \ 109$(call add-src-files-target-cflags,\ 110 $(call get-src-files-with-tag,neon),\ 111 $(TARGET_CFLAGS.neon)) \ 112$(call set-src-files-text,$(__arm_sources),arm) \ 113$(call set-src-files-text,$(__thumb_sources),thumb) 114