TARGET_linux-arm64.mk revision 859c826ffc5d64599c4524f5ca84e5c4210cea96
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 50# TODO: Enable Clang when aarch64 prebuilt is added 51WITHOUT_CLANG := true 52 53include $(TARGET_ARCH_SPECIFIC_MAKEFILE) 54 55# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else 56ifeq ($(strip $(TARGET_TOOLS_PREFIX)),) 57TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/aarch64/aarch64-linux-android-$(TARGET_GCC_VERSION) 58TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/aarch64-linux-android- 59endif 60 61TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) 62TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) 63TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) 64TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) 65TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) 66TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) 67ifeq ($(TARGET_BUILD_VARIANT),user) 68 TARGET_STRIP_COMMAND = $(PRIVATE_STRIP) --strip-all $< -o $@ 69else 70 TARGET_STRIP_COMMAND = $(PRIVATE_STRIP) --strip-all $< -o $@ && \ 71 $(PRIVATE_OBJCOPY) --add-gnu-debuglink=$< $@ 72endif 73 74TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined 75 76TARGET_GLOBAL_CFLAGS += \ 77 -fno-strict-aliasing \ 78 79android_config_h := $(call select-android-config-h,linux-arm64) 80 81# HACK: globally disable -fstack-protector until the toolchain supports it 82TARGET_GLOBAL_UNSUPPORTED_CFLAGS := \ 83 -fstack-protector \ 84 -fstack-protector-all \ 85 86TARGET_GLOBAL_CFLAGS += \ 87 -fpic -fPIE \ 88 -ffunction-sections \ 89 -fdata-sections \ 90 -funwind-tables \ 91 -Wa,--noexecstack \ 92 -Werror=format-security \ 93 -D_FORTIFY_SOURCE=2 \ 94 -fno-short-enums \ 95 $(arch_variant_cflags) \ 96 -include $(android_config_h) \ 97 -I $(dir $(android_config_h)) 98 99# Help catch common 32/64-bit errors. 100TARGET_GLOBAL_CFLAGS += \ 101 -Werror=pointer-to-int-cast \ 102 -Werror=int-to-pointer-cast \ 103 104TARGET_GLOBAL_CFLAGS += -fno-strict-volatile-bitfields 105 106# This is to avoid the dreaded warning compiler message: 107# note: the mangling of 'va_list' has changed in GCC 4.4 108# 109# The fact that the mangling changed does not affect the NDK ABI 110# very fortunately (since none of the exposed APIs used va_list 111# in their exported C++ functions). Also, GCC 4.5 has already 112# removed the warning from the compiler. 113# 114TARGET_GLOBAL_CFLAGS += -Wno-psabi 115 116# TODO - temporarily remove "-Wl,-z,relro -Wl,-z,now" as they cause segmentation fault on the 117# v8 foundation model. 118TARGET_GLOBAL_LDFLAGS += \ 119 -Wl,-z,noexecstack \ 120 -Wl,--warn-shared-textrel \ 121 -Wl,--fatal-warnings \ 122 $(arch_variant_ldflags) 123 124TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 125 126# More flags/options can be added here 127TARGET_RELEASE_CFLAGS := \ 128 -DNDEBUG \ 129 -O2 -g \ 130 -Wstrict-aliasing=2 \ 131 -fgcse-after-reload \ 132 -frerun-cse-after-loop \ 133 -frename-registers 134 135libc_root := bionic/libc 136libm_root := bionic/libm 137libstdc++_root := bionic/libstdc++ 138 139TARGET_LIBGCC := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \ 140 -print-libgcc-file-name) 141 142KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 143KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-$(TARGET_ARCH) 144KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 145 146TARGET_C_INCLUDES := \ 147 $(libc_root)/arch-arm64/include \ 148 $(libc_root)/include \ 149 $(libstdc++_root)/include \ 150 $(KERNEL_HEADERS) \ 151 $(libm_root)/include \ 152 $(libm_root)/include/arm64 \ 153 154TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 155TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 156TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 157 158TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 159TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 160 161TARGET_STRIP_MODULE:=true 162 163TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 164 165TARGET_CUSTOM_LD_COMMAND := true 166 167define transform-o-to-shared-lib-inner 168$(hide) $(PRIVATE_CXX) \ 169 -nostdlib -Wl,-soname,$(notdir $@) \ 170 -Wl,-shared,-Bsymbolic \ 171 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 172 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 173 $(PRIVATE_ALL_OBJECTS) \ 174 -Wl,--whole-archive \ 175 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 176 -Wl,--no-whole-archive \ 177 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 178 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 179 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 180 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 181 $(PRIVATE_TARGET_FDO_LIB) \ 182 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 183 -o $@ \ 184 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 185 $(PRIVATE_LDFLAGS) \ 186 $(PRIVATE_TARGET_LIBGCC) \ 187 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) 188endef 189 190define transform-o-to-executable-inner 191$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -fPIE -pie \ 192 -Wl,-dynamic-linker,/system/bin/linker64 \ 193 -Wl,-z,nocopyreloc \ 194 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 195 -Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 196 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \ 197 $(PRIVATE_ALL_OBJECTS) \ 198 -Wl,--whole-archive \ 199 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 200 -Wl,--no-whole-archive \ 201 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 202 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 203 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 204 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 205 $(PRIVATE_TARGET_FDO_LIB) \ 206 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 207 -o $@ \ 208 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 209 $(PRIVATE_LDFLAGS) \ 210 $(PRIVATE_TARGET_LIBGCC) \ 211 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 212endef 213 214define transform-o-to-static-executable-inner 215$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \ 216 -o $@ \ 217 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 218 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \ 219 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 220 $(PRIVATE_LDFLAGS) \ 221 $(PRIVATE_ALL_OBJECTS) \ 222 -Wl,--whole-archive \ 223 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 224 -Wl,--no-whole-archive \ 225 $(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \ 226 -Wl,--start-group \ 227 $(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 228 $(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 229 $(PRIVATE_TARGET_FDO_LIB) \ 230 $(PRIVATE_TARGET_LIBGCC) \ 231 -Wl,--end-group \ 232 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 233endef 234