TARGET_linux-arm64.mk revision ce1c596e1507295f3037e9fa7bf163fb2ab95a11
1# 2# Copyright (C) 2013 The Android Open Source Project 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15# 16 17# Configuration for Linux on ARM. 18# Included by combo/select.mk 19 20# You can set TARGET_ARCH_VARIANT to use an arch version other 21# than ARMv5TE. Each value should correspond to a file named 22# $(BUILD_COMBOS)/arch/<name>.mk which must contain 23# makefile variable definitions similar to the preprocessor 24# defines in build/core/combo/include/arch/<combo>/AndroidConfig.h. Their 25# purpose is to allow module Android.mk files to selectively compile 26# different versions of code based upon the funtionality and 27# instructions available in a given architecture version. 28# 29# The blocks also define specific arch_variant_cflags, which 30# include defines, and compiler settings for the given architecture 31# version. 32# 33ifeq ($(strip $(TARGET_ARCH_VARIANT)),) 34TARGET_ARCH_VARIANT := armv8 35endif 36 37ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),) 38TARGET_GCC_VERSION := 4.8 39else 40TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP) 41endif 42 43TARGET_IS_64_BIT := true 44 45TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk 46ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),) 47$(error Unknown ARM architecture version: $(TARGET_ARCH_VARIANT)) 48endif 49 50include $(TARGET_ARCH_SPECIFIC_MAKEFILE) 51 52# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else 53ifeq ($(strip $(TARGET_TOOLS_PREFIX)),) 54TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/aarch64/aarch64-linux-android-$(TARGET_GCC_VERSION) 55TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/aarch64-linux-android- 56endif 57 58TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) 59TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) 60TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) 61TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) 62TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) 63TARGET_READELF := $(TARGET_TOOLS_PREFIX)readelf$(HOST_EXECUTABLE_SUFFIX) 64TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) 65 66TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined 67 68TARGET_GLOBAL_CFLAGS += \ 69 -fno-strict-aliasing \ 70 71android_config_h := $(call select-android-config-h,linux-arm64) 72 73# HACK: globally disable -fstack-protector until the toolchain supports it 74TARGET_GLOBAL_UNSUPPORTED_CFLAGS := \ 75 -fstack-protector \ 76 -fstack-protector-all \ 77 78TARGET_GLOBAL_CFLAGS += \ 79 -fpic -fPIE \ 80 -ffunction-sections \ 81 -fdata-sections \ 82 -funwind-tables \ 83 -Wa,--noexecstack \ 84 -Werror=format-security \ 85 -D_FORTIFY_SOURCE=2 \ 86 -fno-short-enums \ 87 $(arch_variant_cflags) \ 88 -include $(android_config_h) \ 89 -I $(dir $(android_config_h)) 90 91# Help catch common 32/64-bit errors. 92TARGET_GLOBAL_CFLAGS += \ 93 -Werror=pointer-to-int-cast \ 94 -Werror=int-to-pointer-cast \ 95 96TARGET_GLOBAL_CFLAGS += -fno-strict-volatile-bitfields 97 98# This is to avoid the dreaded warning compiler message: 99# note: the mangling of 'va_list' has changed in GCC 4.4 100# 101# The fact that the mangling changed does not affect the NDK ABI 102# very fortunately (since none of the exposed APIs used va_list 103# in their exported C++ functions). Also, GCC 4.5 has already 104# removed the warning from the compiler. 105# 106TARGET_GLOBAL_CFLAGS += -Wno-psabi 107 108# TODO - temporarily remove "-Wl,-z,relro -Wl,-z,now" as they cause segmentation fault on the 109# v8 foundation model. 110TARGET_GLOBAL_LDFLAGS += \ 111 -Wl,-z,noexecstack \ 112 -Wl,--warn-shared-textrel \ 113 -Wl,--fatal-warnings \ 114 $(arch_variant_ldflags) 115 116TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 117 118# More flags/options can be added here 119TARGET_RELEASE_CFLAGS := \ 120 -DNDEBUG \ 121 -O2 -g \ 122 -Wstrict-aliasing=2 \ 123 -fgcse-after-reload \ 124 -frerun-cse-after-loop \ 125 -frename-registers 126 127libc_root := bionic/libc 128libm_root := bionic/libm 129libstdc++_root := bionic/libstdc++ 130 131TARGET_LIBGCC := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \ 132 -print-libgcc-file-name) 133 134KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 135KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-$(TARGET_ARCH) 136KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 137 138TARGET_C_INCLUDES := \ 139 $(libc_root)/arch-arm64/include \ 140 $(libc_root)/include \ 141 $(libstdc++_root)/include \ 142 $(KERNEL_HEADERS) \ 143 $(libm_root)/include \ 144 $(libm_root)/include/arm64 \ 145 146TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 147TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 148TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 149 150TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 151TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 152 153TARGET_STRIP_MODULE:=true 154 155TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 156 157TARGET_CUSTOM_LD_COMMAND := true 158 159define transform-o-to-shared-lib-inner 160$(hide) $(PRIVATE_CXX) \ 161 -nostdlib -Wl,-soname,$(notdir $@) \ 162 -Wl,-shared,-Bsymbolic \ 163 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 164 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 165 $(PRIVATE_ALL_OBJECTS) \ 166 -Wl,--whole-archive \ 167 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 168 -Wl,--no-whole-archive \ 169 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 170 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 171 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 172 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 173 $(PRIVATE_TARGET_FDO_LIB) \ 174 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 175 -o $@ \ 176 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 177 $(PRIVATE_LDFLAGS) \ 178 $(PRIVATE_TARGET_LIBGCC) \ 179 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) 180endef 181 182define transform-o-to-executable-inner 183$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -fPIE -pie \ 184 -Wl,-dynamic-linker,/system/bin/linker64 \ 185 -Wl,-z,nocopyreloc \ 186 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 187 -Wl,-rpath-link=$(PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 188 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \ 189 $(PRIVATE_ALL_OBJECTS) \ 190 -Wl,--whole-archive \ 191 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 192 -Wl,--no-whole-archive \ 193 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 194 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 195 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 196 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 197 $(PRIVATE_TARGET_FDO_LIB) \ 198 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 199 -o $@ \ 200 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 201 $(PRIVATE_LDFLAGS) \ 202 $(PRIVATE_TARGET_LIBGCC) \ 203 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 204endef 205 206define transform-o-to-static-executable-inner 207$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \ 208 -o $@ \ 209 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 210 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \ 211 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 212 $(PRIVATE_LDFLAGS) \ 213 $(PRIVATE_ALL_OBJECTS) \ 214 -Wl,--whole-archive \ 215 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 216 -Wl,--no-whole-archive \ 217 $(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \ 218 -Wl,--start-group \ 219 $(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 220 $(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 221 $(PRIVATE_TARGET_FDO_LIB) \ 222 $(PRIVATE_TARGET_LIBGCC) \ 223 -Wl,--end-group \ 224 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 225endef 226