TARGET_linux-mips.mk revision 1acd8b0552e94f46b985b0ecdc878ab61cc894d2
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 $(arch_variant_cflags) \ 94 -include $(android_config_h) \ 95 -I $(dir $(android_config_h)) 96 97# This warning causes dalvik not to build with gcc 4.6+ and -Werror. 98# We cannot turn it off blindly since the option is not available 99# in gcc-4.4.x. 100ifneq ($(filter 4.6 4.6.% 4.7 4.7.% 4.8, $($(combo_2nd_arch_prefix)TARGET_GCC_VERSION)),) 101$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -Wno-unused-but-set-variable \ 102 -fno-strict-volatile-bitfields 103endif 104 105# This is to avoid the dreaded warning compiler message: 106# note: the mangling of 'va_list' has changed in GCC 4.4 107# 108# The fact that the mangling changed does not affect the NDK ABI 109# very fortunately (since none of the exposed APIs used va_list 110# in their exported C++ functions). Also, GCC 4.5 has already 111# removed the warning from the compiler. 112# 113$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -Wno-psabi 114 115ifneq ($(ARCH_MIPS_PAGE_SHIFT),) 116$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -DPAGE_SHIFT=$(ARCH_MIPS_PAGE_SHIFT) 117endif 118 119$(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += \ 120 -Wl,-z,noexecstack \ 121 -Wl,-z,relro \ 122 -Wl,-z,now \ 123 -Wl,--warn-shared-textrel \ 124 -Wl,--fatal-warnings \ 125 $(arch_variant_ldflags) 126 127$(combo_2nd_arch_prefix)TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 128 129# More flags/options can be added here 130$(combo_2nd_arch_prefix)TARGET_RELEASE_CFLAGS := \ 131 -DNDEBUG \ 132 -g \ 133 -Wstrict-aliasing=2 \ 134 -fgcse-after-reload \ 135 -frerun-cse-after-loop \ 136 -frename-registers 137 138libc_root := bionic/libc 139libm_root := bionic/libm 140libstdc++_root := bionic/libstdc++ 141 142 143## on some hosts, the target cross-compiler is not available so do not run this command 144ifneq ($(wildcard $($(combo_2nd_arch_prefix)TARGET_CC)),) 145# We compile with the global cflags to ensure that 146# any flags which affect libgcc are correctly taken 147# into account. 148$(combo_2nd_arch_prefix)TARGET_LIBGCC := \ 149 $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc.a) 150LIBGCC_EH := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a) 151ifneq ($(LIBGCC_EH),libgcc_eh.a) 152 $(combo_2nd_arch_prefix)TARGET_LIBGCC += $(LIBGCC_EH) 153endif 154target_libgcov := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) \ 155 --print-file-name=libgcov.a) 156endif 157 158# Define FDO (Feedback Directed Optimization) options. 159 160$(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS:= 161$(combo_2nd_arch_prefix)TARGET_FDO_LIB:= 162 163ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),) 164 # Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation. 165 # The profile will be generated on /data/local/tmp/profile on the device. 166 $(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-generate=/data/local/tmp/profile -DANDROID_FDO 167 $(combo_2nd_arch_prefix)TARGET_FDO_LIB := $(target_libgcov) 168else 169 # If BUILD_FDO_INSTRUMENT is turned off, then consider doing the FDO optimizations. 170 # Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build. 171 ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH)),) 172 $(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH := fdo/profiles/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT) 173 else 174 ifeq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH))),) 175 $(warning Custom $(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH supplied, but directory does not exist. Turn off FDO.) 176 endif 177 endif 178 179 # If the FDO profile directory can't be found, then FDO is off. 180 ifneq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH))),) 181 $(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-use=$($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH) -DANDROID_FDO 182 $(combo_2nd_arch_prefix)TARGET_FDO_LIB := $(target_libgcov) 183 endif 184endif 185 186 187KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 188KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-mips # mips covers both mips and mips64. 189KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 190 191$(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \ 192 $(libc_root)/arch-mips/include \ 193 $(libc_root)/include \ 194 $(libstdc++_root)/include \ 195 $(KERNEL_HEADERS) \ 196 $(libm_root)/include \ 197 $(libm_root)/include/mips \ 198 199$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 200$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 201$(combo_2nd_arch_prefix)TARGET_CRTEND_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 202 203$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 204$(combo_2nd_arch_prefix)TARGET_CRTEND_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 205 206$(combo_2nd_arch_prefix)TARGET_STRIP_MODULE:=true 207 208$(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 209 210$(combo_2nd_arch_prefix)TARGET_CUSTOM_LD_COMMAND := true 211 212define $(combo_2nd_arch_prefix)transform-o-to-shared-lib-inner 213$(hide) $(PRIVATE_CXX) \ 214 -nostdlib -Wl,-soname,$(notdir $@) \ 215 -Wl,--gc-sections \ 216 -Wl,-shared,-Bsymbolic \ 217 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 218 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 219 $(PRIVATE_ALL_OBJECTS) \ 220 -Wl,--whole-archive \ 221 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 222 -Wl,--no-whole-archive \ 223 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 224 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 225 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 226 $(PRIVATE_TARGET_LIBGCC) \ 227 $(PRIVATE_TARGET_FDO_LIB) \ 228 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 229 -o $@ \ 230 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 231 $(PRIVATE_LDFLAGS) \ 232 $(PRIVATE_TARGET_LIBGCC) \ 233 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) 234endef 235 236define $(combo_2nd_arch_prefix)transform-o-to-executable-inner 237$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -fPIE -pie \ 238 -Wl,-dynamic-linker,/system/bin/linker \ 239 -Wl,--gc-sections \ 240 -Wl,-z,nocopyreloc \ 241 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 242 -Wl,-rpath-link=$(PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 243 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \ 244 $(PRIVATE_ALL_OBJECTS) \ 245 -Wl,--whole-archive \ 246 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 247 -Wl,--no-whole-archive \ 248 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 249 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 250 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 251 $(PRIVATE_TARGET_LIBGCC) \ 252 $(PRIVATE_TARGET_FDO_LIB) \ 253 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 254 -o $@ \ 255 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 256 $(PRIVATE_LDFLAGS) \ 257 $(PRIVATE_TARGET_LIBGCC) \ 258 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 259endef 260 261define $(combo_2nd_arch_prefix)transform-o-to-static-executable-inner 262$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \ 263 -Wl,--gc-sections \ 264 -o $@ \ 265 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 266 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \ 267 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 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 $(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \ 274 -Wl,--start-group \ 275 $(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 276 $(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 277 $(PRIVATE_TARGET_FDO_LIB) \ 278 $(PRIVATE_TARGET_LIBGCC) \ 279 -Wl,--end-group \ 280 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 281endef 282