TARGET_linux-mips.mk revision 4c952d72b7aca4801e0ee4070cf54e3de57b98b5
1# 2# Copyright (C) 2010 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 MIPS. 18# Included by combo/select.mk 19 20# You can set TARGET_ARCH_VARIANT to use an arch version other 21# than mips32r2-fp. 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 $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)),) 34TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT := mips32r2-fp 35endif 36 37# Decouple NDK library selection with platform compiler version 38$(combo_2nd_arch_prefix)TARGET_NDK_GCC_VERSION := 4.8 39 40ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),) 41$(combo_2nd_arch_prefix)TARGET_GCC_VERSION := 4.8 42else 43$(combo_2nd_arch_prefix)TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP) 44endif 45 46TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT).mk 47ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),) 48$(error Unknown MIPS architecture variant: $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)) 49endif 50 51include $(TARGET_ARCH_SPECIFIC_MAKEFILE) 52 53# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else 54ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)),) 55$(combo_2nd_arch_prefix)TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mipsel-linux-android-$($(combo_2nd_arch_prefix)TARGET_GCC_VERSION) 56$(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX := $($(combo_2nd_arch_prefix)TARGET_TOOLCHAIN_ROOT)/bin/mipsel-linux-android- 57endif 58 59$(combo_2nd_arch_prefix)TARGET_CC := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) 60$(combo_2nd_arch_prefix)TARGET_CXX := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) 61$(combo_2nd_arch_prefix)TARGET_AR := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) 62$(combo_2nd_arch_prefix)TARGET_OBJCOPY := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) 63$(combo_2nd_arch_prefix)TARGET_LD := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) 64$(combo_2nd_arch_prefix)TARGET_READELF := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)readelf$(HOST_EXECUTABLE_SUFFIX) 65$(combo_2nd_arch_prefix)TARGET_STRIP := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) 66 67$(combo_2nd_arch_prefix)TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined 68 69TARGET_mips_CFLAGS := -O2 \ 70 -fomit-frame-pointer \ 71 -fno-strict-aliasing \ 72 -funswitch-loops 73 74# Set FORCE_MIPS_DEBUGGING to "true" in your buildspec.mk 75# or in your environment to gdb debugging easier. 76# Don't forget to do a clean build. 77ifeq ($(FORCE_MIPS_DEBUGGING),true) 78 TARGET_mips_CFLAGS += -fno-omit-frame-pointer 79endif 80 81android_config_h := $(call select-android-config-h,linux-mips) 82 83$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += \ 84 $(TARGET_mips_CFLAGS) \ 85 -U__unix -U__unix__ -Umips \ 86 -fpic -fPIE\ 87 -ffunction-sections \ 88 -fdata-sections \ 89 -funwind-tables \ 90 -Wa,--noexecstack \ 91 -Werror=format-security \ 92 -D_FORTIFY_SOURCE=2 \ 93 -no-canonical-prefixes \ 94 -fno-canonical-system-headers \ 95 $(arch_variant_cflags) \ 96 -include $(android_config_h) \ 97 -I $(dir $(android_config_h)) 98 99# This warning causes dalvik not to build with gcc 4.6+ and -Werror. 100# We cannot turn it off blindly since the option is not available 101# in gcc-4.4.x. 102ifneq ($(filter 4.6 4.6.% 4.7 4.7.% 4.8, $($(combo_2nd_arch_prefix)TARGET_GCC_VERSION)),) 103$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -Wno-unused-but-set-variable \ 104 -fno-strict-volatile-bitfields 105endif 106 107# This is to avoid the dreaded warning compiler message: 108# note: the mangling of 'va_list' has changed in GCC 4.4 109# 110# The fact that the mangling changed does not affect the NDK ABI 111# very fortunately (since none of the exposed APIs used va_list 112# in their exported C++ functions). Also, GCC 4.5 has already 113# removed the warning from the compiler. 114# 115$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -Wno-psabi 116 117ifneq ($(ARCH_MIPS_PAGE_SHIFT),) 118$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -DPAGE_SHIFT=$(ARCH_MIPS_PAGE_SHIFT) 119endif 120 121$(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += \ 122 -Wl,-z,noexecstack \ 123 -Wl,-z,relro \ 124 -Wl,-z,now \ 125 -Wl,--warn-shared-textrel \ 126 -Wl,--fatal-warnings \ 127 $(arch_variant_ldflags) 128 129$(combo_2nd_arch_prefix)TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 130 131# More flags/options can be added here 132$(combo_2nd_arch_prefix)TARGET_RELEASE_CFLAGS := \ 133 -DNDEBUG \ 134 -g \ 135 -Wstrict-aliasing=2 \ 136 -fgcse-after-reload \ 137 -frerun-cse-after-loop \ 138 -frename-registers 139 140libc_root := bionic/libc 141libm_root := bionic/libm 142libstdc++_root := bionic/libstdc++ 143 144 145## on some hosts, the target cross-compiler is not available so do not run this command 146ifneq ($(wildcard $($(combo_2nd_arch_prefix)TARGET_CC)),) 147# We compile with the global cflags to ensure that 148# any flags which affect libgcc are correctly taken 149# into account. 150$(combo_2nd_arch_prefix)TARGET_LIBGCC := \ 151 $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc.a) 152$(combo_2nd_arch_prefix)TARGET_LIBATOMIC := \ 153 $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libatomic.a) 154LIBGCC_EH := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a) 155ifneq ($(LIBGCC_EH),libgcc_eh.a) 156 $(combo_2nd_arch_prefix)TARGET_LIBGCC += $(LIBGCC_EH) 157endif 158target_libgcov := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) \ 159 --print-file-name=libgcov.a) 160endif 161 162# Define FDO (Feedback Directed Optimization) options. 163 164$(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS:= 165$(combo_2nd_arch_prefix)TARGET_FDO_LIB:= 166 167ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),) 168 # Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation. 169 # The profile will be generated on /data/local/tmp/profile on the device. 170 $(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-generate=/data/local/tmp/profile -DANDROID_FDO 171 $(combo_2nd_arch_prefix)TARGET_FDO_LIB := $(target_libgcov) 172else 173 # If BUILD_FDO_INSTRUMENT is turned off, then consider doing the FDO optimizations. 174 # Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build. 175 ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH)),) 176 $(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH := fdo/profiles/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT) 177 else 178 ifeq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH))),) 179 $(warning Custom $(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH supplied, but directory does not exist. Turn off FDO.) 180 endif 181 endif 182 183 # If the FDO profile directory can't be found, then FDO is off. 184 ifneq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH))),) 185 $(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-use=$($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH) -DANDROID_FDO 186 $(combo_2nd_arch_prefix)TARGET_FDO_LIB := $(target_libgcov) 187 endif 188endif 189 190 191KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 192KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-mips # mips covers both mips and mips64. 193KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 194 195$(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \ 196 $(libc_root)/arch-mips/include \ 197 $(libc_root)/include \ 198 $(libstdc++_root)/include \ 199 $(KERNEL_HEADERS) \ 200 $(libm_root)/include \ 201 $(libm_root)/include/mips \ 202 203$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 204$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 205$(combo_2nd_arch_prefix)TARGET_CRTEND_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 206 207$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 208$(combo_2nd_arch_prefix)TARGET_CRTEND_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 209 210$(combo_2nd_arch_prefix)TARGET_STRIP_MODULE:=true 211 212$(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 213 214$(combo_2nd_arch_prefix)TARGET_CUSTOM_LD_COMMAND := true 215 216define $(combo_2nd_arch_prefix)transform-o-to-shared-lib-inner 217$(hide) $(PRIVATE_CXX) \ 218 -nostdlib -Wl,-soname,$(notdir $@) \ 219 -Wl,--gc-sections \ 220 -Wl,-shared,-Bsymbolic \ 221 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 222 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 223 $(PRIVATE_ALL_OBJECTS) \ 224 -Wl,--whole-archive \ 225 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 226 -Wl,--no-whole-archive \ 227 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 228 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 229 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 230 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 231 $(PRIVATE_TARGET_FDO_LIB) \ 232 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 233 -o $@ \ 234 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 235 $(PRIVATE_LDFLAGS) \ 236 $(PRIVATE_TARGET_LIBATOMIC) \ 237 $(if $(PRIVATE_LIBCXX),,$(PRIVATE_TARGET_LIBGCC)) \ 238 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) \ 239 $(PRIVATE_LDLIBS) 240endef 241 242define $(combo_2nd_arch_prefix)transform-o-to-executable-inner 243$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -fPIE -pie \ 244 -Wl,-dynamic-linker,/system/bin/linker \ 245 -Wl,--gc-sections \ 246 -Wl,-z,nocopyreloc \ 247 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 248 -Wl,-rpath-link=$(PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 249 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \ 250 $(PRIVATE_ALL_OBJECTS) \ 251 -Wl,--whole-archive \ 252 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 253 -Wl,--no-whole-archive \ 254 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 255 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 256 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 257 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 258 $(PRIVATE_TARGET_FDO_LIB) \ 259 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 260 -o $@ \ 261 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 262 $(PRIVATE_LDFLAGS) \ 263 $(PRIVATE_TARGET_LIBATOMIC) \ 264 $(if $(PRIVATE_LIBCXX),,$(PRIVATE_TARGET_LIBGCC)) \ 265 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) \ 266 $(PRIVATE_LDLIBS) 267endef 268 269define $(combo_2nd_arch_prefix)transform-o-to-static-executable-inner 270$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \ 271 -Wl,--gc-sections \ 272 -o $@ \ 273 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 274 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \ 275 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 276 $(PRIVATE_LDFLAGS) \ 277 $(PRIVATE_ALL_OBJECTS) \ 278 -Wl,--whole-archive \ 279 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 280 -Wl,--no-whole-archive \ 281 $(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \ 282 -Wl,--start-group \ 283 $(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 284 $(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 285 $(PRIVATE_TARGET_FDO_LIB) \ 286 $(PRIVATE_TARGET_LIBATOMIC) \ 287 $(if $(PRIVATE_LIBCXX),,$(PRIVATE_TARGET_LIBGCC)) \ 288 -Wl,--end-group \ 289 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 290endef 291