TARGET_linux-mips.mk revision 0f9276d4ba6707ebc42be2aab1d9aae3dce14c80
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) 152LIBGCC_EH := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a) 153ifneq ($(LIBGCC_EH),libgcc_eh.a) 154 $(combo_2nd_arch_prefix)TARGET_LIBGCC += $(LIBGCC_EH) 155endif 156target_libgcov := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) \ 157 --print-file-name=libgcov.a) 158endif 159 160# Define FDO (Feedback Directed Optimization) options. 161 162$(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS:= 163$(combo_2nd_arch_prefix)TARGET_FDO_LIB:= 164 165ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),) 166 # Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation. 167 # The profile will be generated on /data/local/tmp/profile on the device. 168 $(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-generate=/data/local/tmp/profile -DANDROID_FDO 169 $(combo_2nd_arch_prefix)TARGET_FDO_LIB := $(target_libgcov) 170else 171 # If BUILD_FDO_INSTRUMENT is turned off, then consider doing the FDO optimizations. 172 # Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build. 173 ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH)),) 174 $(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH := fdo/profiles/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT) 175 else 176 ifeq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH))),) 177 $(warning Custom $(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH supplied, but directory does not exist. Turn off FDO.) 178 endif 179 endif 180 181 # If the FDO profile directory can't be found, then FDO is off. 182 ifneq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH))),) 183 $(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-use=$($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH) -DANDROID_FDO 184 $(combo_2nd_arch_prefix)TARGET_FDO_LIB := $(target_libgcov) 185 endif 186endif 187 188 189KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 190KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-mips # mips covers both mips and mips64. 191KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 192 193$(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \ 194 $(libc_root)/arch-mips/include \ 195 $(libc_root)/include \ 196 $(libstdc++_root)/include \ 197 $(KERNEL_HEADERS) \ 198 $(libm_root)/include \ 199 $(libm_root)/include/mips \ 200 201$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 202$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 203$(combo_2nd_arch_prefix)TARGET_CRTEND_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 204 205$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 206$(combo_2nd_arch_prefix)TARGET_CRTEND_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 207 208$(combo_2nd_arch_prefix)TARGET_STRIP_MODULE:=true 209 210$(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 211 212$(combo_2nd_arch_prefix)TARGET_CUSTOM_LD_COMMAND := true 213 214define $(combo_2nd_arch_prefix)transform-o-to-shared-lib-inner 215$(hide) $(PRIVATE_CXX) \ 216 -nostdlib -Wl,-soname,$(notdir $@) \ 217 -Wl,--gc-sections \ 218 -Wl,-shared,-Bsymbolic \ 219 -shared \ 220 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 221 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 222 $(PRIVATE_ALL_OBJECTS) \ 223 -Wl,--whole-archive \ 224 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 225 -Wl,--no-whole-archive \ 226 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 227 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 228 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 229 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 230 $(PRIVATE_TARGET_FDO_LIB) \ 231 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 232 -o $@ \ 233 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 234 $(PRIVATE_LDFLAGS) \ 235 $(if $(PRIVATE_LIBCXX),,$(PRIVATE_TARGET_LIBGCC)) \ 236 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) \ 237 $(PRIVATE_LDLIBS) 238endef 239 240define $(combo_2nd_arch_prefix)transform-o-to-executable-inner 241$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -fPIE -pie \ 242 -Wl,-dynamic-linker,/system/bin/linker \ 243 -Wl,--gc-sections \ 244 -Wl,-z,nocopyreloc \ 245 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 246 -Wl,-rpath-link=$(PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 247 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \ 248 $(PRIVATE_ALL_OBJECTS) \ 249 -Wl,--whole-archive \ 250 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 251 -Wl,--no-whole-archive \ 252 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 253 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 254 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 255 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 256 $(PRIVATE_TARGET_FDO_LIB) \ 257 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 258 -o $@ \ 259 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 260 $(PRIVATE_LDFLAGS) \ 261 $(if $(PRIVATE_LIBCXX),,$(PRIVATE_TARGET_LIBGCC)) \ 262 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) \ 263 $(PRIVATE_LDLIBS) 264endef 265 266define $(combo_2nd_arch_prefix)transform-o-to-static-executable-inner 267$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \ 268 -Wl,--gc-sections \ 269 -o $@ \ 270 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 271 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \ 272 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 273 $(PRIVATE_LDFLAGS) \ 274 $(PRIVATE_ALL_OBJECTS) \ 275 -Wl,--whole-archive \ 276 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 277 -Wl,--no-whole-archive \ 278 $(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \ 279 -Wl,--start-group \ 280 $(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 281 $(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 282 $(PRIVATE_TARGET_FDO_LIB) \ 283 $(if $(PRIVATE_LIBCXX),,$(PRIVATE_TARGET_LIBGCC)) \ 284 -Wl,--end-group \ 285 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 286endef 287