TARGET_linux-arm64.mk revision 6154690d8615995b961530479ddc1a34946efe49
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 := 4.9 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 73TARGET_GLOBAL_CFLAGS += \ 74 -fpic -fPIE \ 75 -fstack-protector \ 76 -ffunction-sections \ 77 -fdata-sections \ 78 -funwind-tables \ 79 -Wa,--noexecstack \ 80 -Werror=format-security \ 81 -D_FORTIFY_SOURCE=2 \ 82 -fno-short-enums \ 83 $(arch_variant_cflags) \ 84 -include $(android_config_h) \ 85 -I $(dir $(android_config_h)) 86 87# Help catch common 32/64-bit errors. 88TARGET_GLOBAL_CFLAGS += \ 89 -Werror=pointer-to-int-cast \ 90 -Werror=int-to-pointer-cast \ 91 92TARGET_GLOBAL_CFLAGS += -fno-strict-volatile-bitfields 93 94# This is to avoid the dreaded warning compiler message: 95# note: the mangling of 'va_list' has changed in GCC 4.4 96# 97# The fact that the mangling changed does not affect the NDK ABI 98# very fortunately (since none of the exposed APIs used va_list 99# in their exported C++ functions). Also, GCC 4.5 has already 100# removed the warning from the compiler. 101# 102TARGET_GLOBAL_CFLAGS += -Wno-psabi 103 104# TODO - temporarily remove "-Wl,-z,relro -Wl,-z,now" as they cause segmentation fault on the 105# v8 foundation model. 106TARGET_GLOBAL_LDFLAGS += \ 107 -Wl,-z,noexecstack \ 108 -Wl,--warn-shared-textrel \ 109 -Wl,--fatal-warnings \ 110 $(arch_variant_ldflags) 111 112TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 113 114# More flags/options can be added here 115TARGET_RELEASE_CFLAGS := \ 116 -DNDEBUG \ 117 -O2 -g \ 118 -Wstrict-aliasing=2 \ 119 -fgcse-after-reload \ 120 -frerun-cse-after-loop \ 121 -frename-registers 122 123libc_root := bionic/libc 124libm_root := bionic/libm 125libstdc++_root := bionic/libstdc++ 126 127TARGET_LIBGCC := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \ 128 -print-libgcc-file-name) 129 130KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 131KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-$(TARGET_ARCH) 132KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 133 134TARGET_C_INCLUDES := \ 135 $(libc_root)/arch-arm64/include \ 136 $(libc_root)/include \ 137 $(libstdc++_root)/include \ 138 $(KERNEL_HEADERS) \ 139 $(libm_root)/include \ 140 $(libm_root)/include/arm64 \ 141 142TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 143TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 144TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 145 146TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 147TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 148 149TARGET_STRIP_MODULE:=true 150 151TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 152 153TARGET_CUSTOM_LD_COMMAND := true 154 155define transform-o-to-shared-lib-inner 156$(hide) $(PRIVATE_CXX) \ 157 -nostdlib -Wl,-soname,$(notdir $@) \ 158 -Wl,--gc-sections \ 159 -Wl,-shared,-Bsymbolic \ 160 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 161 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 162 $(PRIVATE_ALL_OBJECTS) \ 163 -Wl,--whole-archive \ 164 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 165 -Wl,--no-whole-archive \ 166 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 167 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 168 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 169 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 170 $(PRIVATE_TARGET_FDO_LIB) \ 171 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 172 -o $@ \ 173 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 174 $(PRIVATE_LDFLAGS) \ 175 $(PRIVATE_TARGET_LIBGCC) \ 176 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) 177endef 178 179define transform-o-to-executable-inner 180$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -fPIE -pie \ 181 -Wl,-dynamic-linker,/system/bin/linker64 \ 182 -Wl,--gc-sections \ 183 -Wl,-z,nocopyreloc \ 184 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 185 -Wl,-rpath-link=$(PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 186 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \ 187 $(PRIVATE_ALL_OBJECTS) \ 188 -Wl,--whole-archive \ 189 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 190 -Wl,--no-whole-archive \ 191 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 192 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 193 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 194 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 195 $(PRIVATE_TARGET_FDO_LIB) \ 196 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 197 -o $@ \ 198 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 199 $(PRIVATE_LDFLAGS) \ 200 $(PRIVATE_TARGET_LIBGCC) \ 201 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 202endef 203 204define transform-o-to-static-executable-inner 205$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \ 206 -Wl,--gc-sections \ 207 -o $@ \ 208 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 209 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \ 210 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 211 $(PRIVATE_LDFLAGS) \ 212 $(PRIVATE_ALL_OBJECTS) \ 213 -Wl,--whole-archive \ 214 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 215 -Wl,--no-whole-archive \ 216 $(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \ 217 -Wl,--start-group \ 218 $(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 219 $(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 220 $(PRIVATE_TARGET_FDO_LIB) \ 221 $(PRIVATE_TARGET_LIBGCC) \ 222 -Wl,--end-group \ 223 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 224endef 225