TARGET_linux-x86.mk revision 46ed4aa58b9674aadf75b4c35d0394831bbe6bad
1# 2# Copyright (C) 2006 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 x86 as a target. 18# Included by combo/select.mk 19 20# Provide a default variant. 21ifeq ($(strip $(TARGET_ARCH_VARIANT)),) 22TARGET_ARCH_VARIANT := x86 23endif 24 25ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),) 26TARGET_GCC_VERSION := 4.7 27else 28TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP) 29endif 30 31# Include the arch-variant-specific configuration file. 32# Its role is to define various ARCH_X86_HAVE_XXX feature macros, 33# plus initial values for TARGET_GLOBAL_CFLAGS 34# 35TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk 36ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),) 37$(error Unknown $(TARGET_ARCH) architecture version: $(TARGET_ARCH_VARIANT)) 38endif 39 40include $(TARGET_ARCH_SPECIFIC_MAKEFILE) 41 42 43# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else 44ifeq ($(strip $(TARGET_TOOLS_PREFIX)),) 45TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/x86_64-linux-android-$(TARGET_GCC_VERSION) 46TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/x86_64-linux-android- 47endif 48 49TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) 50TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) 51TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) 52TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) 53TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) 54TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) 55 56ifeq ($(TARGET_BUILD_VARIANT),user) 57TARGET_STRIP_COMMAND = $(TARGET_STRIP) --strip-debug $< -o $@ 58else 59TARGET_STRIP_COMMAND = $(TARGET_STRIP) --strip-debug $< -o $@ && \ 60 $(TARGET_OBJCOPY) --add-gnu-debuglink=$< $@ 61endif 62 63ifneq ($(wildcard $(TARGET_CC)),) 64TARGET_LIBGCC := \ 65 $(shell $(TARGET_CC) -m32 -print-file-name=libgcc.a) 66target_libgcov := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \ 67 -print-file-name=libgcov.a) 68endif 69 70TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined 71 72libc_root := bionic/libc 73libm_root := bionic/libm 74libstdc++_root := bionic/libstdc++ 75libthread_db_root := bionic/libthread_db 76 77# Define FDO (Feedback Directed Optimization) options. 78 79TARGET_FDO_CFLAGS:= 80TARGET_FDO_LIB:= 81 82ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),) 83 # Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation. 84 # The profile will be generated on /data/local/tmp/profile on the device. 85 TARGET_FDO_CFLAGS := -fprofile-generate=/data/local/tmp/profile -DANDROID_FDO 86 TARGET_FDO_LIB := $(target_libgcov) 87else 88 # If BUILD_FDO_INSTRUMENT is turned off, then consider doing the FDO optimizations. 89 # Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build. 90 ifeq ($(strip $(TARGET_FDO_PROFILE_PATH)),) 91 TARGET_FDO_PROFILE_PATH := fdo/profiles/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT) 92 else 93 ifeq ($(strip $(wildcard $(TARGET_FDO_PROFILE_PATH))),) 94 $(warning Custom TARGET_FDO_PROFILE_PATH supplied, but directory does not exist. Turn off FDO.) 95 endif 96 endif 97 98 # If the FDO profile directory can't be found, then FDO is off. 99 ifneq ($(strip $(wildcard $(TARGET_FDO_PROFILE_PATH))),) 100 TARGET_FDO_CFLAGS := -fprofile-use=$(TARGET_FDO_PROFILE_PATH) -DANDROID_FDO 101 TARGET_FDO_LIB := $(target_libgcov) 102 endif 103endif 104 105# unless CUSTOM_KERNEL_HEADERS is defined, we're going to use 106# symlinks located in out/ to point to the appropriate kernel 107# headers. see 'config/kernel_headers.make' for more details 108# 109ifneq ($(CUSTOM_KERNEL_HEADERS),) 110 KERNEL_HEADERS_COMMON := $(CUSTOM_KERNEL_HEADERS) 111 KERNEL_HEADERS_ARCH := $(CUSTOM_KERNEL_HEADERS) 112else 113 KERNEL_HEADERS_COMMON := $(libc_root)/kernel/common 114 KERNEL_HEADERS_ARCH := $(libc_root)/kernel/arch-$(TARGET_ARCH) 115endif 116KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 117 118TARGET_GLOBAL_CFLAGS += \ 119 -O2 \ 120 -Ulinux \ 121 -Wa,--noexecstack \ 122 -Werror=format-security \ 123 -D_FORTIFY_SOURCE=2 \ 124 -Wstrict-aliasing=2 \ 125 -fPIC -fPIE \ 126 -ffunction-sections \ 127 -finline-functions \ 128 -finline-limit=300 \ 129 -fno-inline-functions-called-once \ 130 -fno-short-enums \ 131 -fstrict-aliasing \ 132 -funswitch-loops \ 133 -funwind-tables \ 134 -fstack-protector \ 135 -m32 136 137android_config_h := $(call select-android-config-h,target_linux-x86) 138TARGET_ANDROID_CONFIG_CFLAGS := -include $(android_config_h) -I $(dir $(android_config_h)) 139TARGET_GLOBAL_CFLAGS += $(TARGET_ANDROID_CONFIG_CFLAGS) 140 141# XXX: Not sure this is still needed. Must check with our toolchains. 142TARGET_GLOBAL_CPPFLAGS += \ 143 -fno-use-cxa-atexit 144 145TARGET_GLOBAL_CFLAGS += $(arch_variant_cflags) 146TARGET_GLOBAL_CFLAGS += -mmmx 147TARGET_GLOBAL_CFLAGS += -msse 148TARGET_GLOBAL_CFLAGS += -DUSE_SSE2 -msse2 149TARGET_GLOBAL_CFLAGS += -msse3 150 151ifeq ($(ARCH_X86_HAVE_SSSE3),true) # yes, really SSSE3, not SSE3! 152 TARGET_GLOBAL_CFLAGS += -DUSE_SSSE3 -mssse3 153endif 154ifeq ($(ARCH_X86_HAVE_SSE4),true) 155 TARGET_GLOBAL_CFLAGS += -msse4 156endif 157ifeq ($(ARCH_X86_HAVE_SSE4_1),true) 158 TARGET_GLOBAL_CFLAGS += -msse4.1 159endif 160ifeq ($(ARCH_X86_HAVE_SSE4_2),true) 161 TARGET_GLOBAL_CFLAGS += -msse4.2 162endif 163ifeq ($(ARCH_X86_HAVE_AVX),true) 164 TARGET_GLOBAL_CFLAGS += -mavx 165endif 166ifeq ($(ARCH_X86_HAVE_AES_NI),true) 167 TARGET_GLOBAL_CFLAGS += -maes 168endif 169 170# XXX: This flag is probably redundant. I believe our toolchain always sets 171# it by default. Consider for removal. 172# 173TARGET_GLOBAL_CFLAGS += -mbionic 174 175# XXX: This flag is probably redundant. The macro should be defined by our 176# toolchain binaries automatically (as a compiler built-in). 177# Check with: $BINPREFIX-gcc -dM -E < /dev/null 178# 179# Consider for removal. 180# 181TARGET_GLOBAL_CFLAGS += -D__ANDROID__ 182 183TARGET_GLOBAL_LDFLAGS += -m32 184 185TARGET_GLOBAL_LDFLAGS += -Wl,-z,noexecstack 186TARGET_GLOBAL_LDFLAGS += -Wl,-z,relro -Wl,-z,now 187TARGET_GLOBAL_LDFLAGS += -Wl,--warn-shared-textrel 188TARGET_GLOBAL_LDFLAGS += -Wl,--fatal-warnings 189TARGET_GLOBAL_LDFLAGS += -Wl,--gc-sections 190 191TARGET_C_INCLUDES := \ 192 $(libc_root)/arch-x86/include \ 193 $(libc_root)/include \ 194 $(libstdc++_root)/include \ 195 $(KERNEL_HEADERS) \ 196 $(libm_root)/include \ 197 $(libm_root)/include/i387 \ 198 $(libthread_db_root)/include 199 200TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 201TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 202TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 203 204TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 205TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 206 207TARGET_STRIP_MODULE:=true 208 209TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 210 211TARGET_CUSTOM_LD_COMMAND := true 212define transform-o-to-shared-lib-inner 213$(hide) $(PRIVATE_CXX) \ 214 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 215 -nostdlib -Wl,-soname,$(notdir $@) \ 216 -shared -Bsymbolic \ 217 $(TARGET_GLOBAL_CFLAGS) \ 218 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 219 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 220 $(PRIVATE_ALL_OBJECTS) \ 221 -Wl,--whole-archive \ 222 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 223 -Wl,--no-whole-archive \ 224 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 225 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 226 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 227 $(PRIVATE_TARGET_LIBGCC) \ 228 $(PRIVATE_TARGET_FDO_LIB) \ 229 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 230 -o $@ \ 231 $(PRIVATE_LDFLAGS) \ 232 $(PRIVATE_TARGET_LIBGCC) \ 233 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) 234endef 235 236define transform-o-to-executable-inner 237$(hide) $(PRIVATE_CXX) \ 238 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 239 -nostdlib -Bdynamic \ 240 -Wl,-z,nocopyreloc \ 241 -fPIE -pie \ 242 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 243 -Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 244 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \ 245 $(PRIVATE_ALL_OBJECTS) \ 246 -Wl,--whole-archive \ 247 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 248 -Wl,--no-whole-archive \ 249 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 250 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 251 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 252 $(PRIVATE_TARGET_LIBGCC) \ 253 $(PRIVATE_TARGET_FDO_LIB) \ 254 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 255 -o $@ \ 256 $(PRIVATE_LDFLAGS) \ 257 $(PRIVATE_TARGET_LIBGCC) \ 258 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 259endef 260 261define transform-o-to-static-executable-inner 262$(hide) $(PRIVATE_CXX) \ 263 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 264 -nostdlib -Bstatic \ 265 -o $@ \ 266 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 267 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \ 268 $(PRIVATE_LDFLAGS) \ 269 $(PRIVATE_ALL_OBJECTS) \ 270 -Wl,--whole-archive \ 271 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 272 -Wl,--no-whole-archive \ 273 -Wl,--start-group \ 274 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 275 $(PRIVATE_TARGET_FDO_LIB) \ 276 $(PRIVATE_TARGET_LIBGCC) \ 277 -Wl,--end-group \ 278 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 279endef 280