TARGET_linux-mips.mk revision ce1c596e1507295f3037e9fa7bf163fb2ab95a11
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_$(combo_2nd_arch_prefix)ARCH_VARIANT := mips32r2-fp 35endif 36 37ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),) 38$(combo_2nd_arch_prefix)TARGET_GCC_VERSION := 4.8 39else 40$(combo_2nd_arch_prefix)TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP) 41endif 42 43TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT).mk 44ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),) 45$(error Unknown MIPS architecture variant: $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)) 46endif 47 48include $(TARGET_ARCH_SPECIFIC_MAKEFILE) 49 50# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else 51ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)),) 52$(combo_2nd_arch_prefix)TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mipsel-linux-android-$($(combo_2nd_arch_prefix)TARGET_GCC_VERSION) 53$(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX := $($(combo_2nd_arch_prefix)TARGET_TOOLCHAIN_ROOT)/bin/mipsel-linux-android- 54endif 55 56$(combo_2nd_arch_prefix)TARGET_CC := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) 57$(combo_2nd_arch_prefix)TARGET_CXX := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) 58$(combo_2nd_arch_prefix)TARGET_AR := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) 59$(combo_2nd_arch_prefix)TARGET_OBJCOPY := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) 60$(combo_2nd_arch_prefix)TARGET_LD := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) 61$(combo_2nd_arch_prefix)TARGET_READELF := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)readelf$(HOST_EXECUTABLE_SUFFIX) 62$(combo_2nd_arch_prefix)TARGET_STRIP := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) 63 64$(combo_2nd_arch_prefix)TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined 65 66TARGET_mips_CFLAGS := -O2 \ 67 -fomit-frame-pointer \ 68 -fno-strict-aliasing \ 69 -funswitch-loops 70 71# Set FORCE_MIPS_DEBUGGING to "true" in your buildspec.mk 72# or in your environment to gdb debugging easier. 73# Don't forget to do a clean build. 74ifeq ($(FORCE_MIPS_DEBUGGING),true) 75 TARGET_mips_CFLAGS += -fno-omit-frame-pointer 76endif 77 78android_config_h := $(call select-android-config-h,linux-mips) 79 80$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += \ 81 $(TARGET_mips_CFLAGS) \ 82 -Ulinux -U__unix -U__unix__ -Umips \ 83 -fpic -fPIE\ 84 -ffunction-sections \ 85 -fdata-sections \ 86 -funwind-tables \ 87 -Wa,--noexecstack \ 88 -Werror=format-security \ 89 -D_FORTIFY_SOURCE=2 \ 90 $(arch_variant_cflags) \ 91 -include $(android_config_h) \ 92 -I $(dir $(android_config_h)) 93 94# This warning causes dalvik not to build with gcc 4.6+ and -Werror. 95# We cannot turn it off blindly since the option is not available 96# in gcc-4.4.x. 97ifneq ($(filter 4.6 4.6.% 4.7 4.7.% 4.8, $($(combo_2nd_arch_prefix)TARGET_GCC_VERSION)),) 98$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -Wno-unused-but-set-variable \ 99 -fno-strict-volatile-bitfields 100endif 101 102# This is to avoid the dreaded warning compiler message: 103# note: the mangling of 'va_list' has changed in GCC 4.4 104# 105# The fact that the mangling changed does not affect the NDK ABI 106# very fortunately (since none of the exposed APIs used va_list 107# in their exported C++ functions). Also, GCC 4.5 has already 108# removed the warning from the compiler. 109# 110$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -Wno-psabi 111 112ifneq ($(ARCH_MIPS_PAGE_SHIFT),) 113$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -DPAGE_SHIFT=$(ARCH_MIPS_PAGE_SHIFT) 114endif 115 116$(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += \ 117 -Wl,-z,noexecstack \ 118 -Wl,-z,relro \ 119 -Wl,-z,now \ 120 -Wl,--warn-shared-textrel \ 121 -Wl,--fatal-warnings \ 122 $(arch_variant_ldflags) 123 124$(combo_2nd_arch_prefix)TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 125 126# More flags/options can be added here 127$(combo_2nd_arch_prefix)TARGET_RELEASE_CFLAGS := \ 128 -DNDEBUG \ 129 -g \ 130 -Wstrict-aliasing=2 \ 131 -fgcse-after-reload \ 132 -frerun-cse-after-loop \ 133 -frename-registers 134 135libc_root := bionic/libc 136libm_root := bionic/libm 137libstdc++_root := bionic/libstdc++ 138 139 140## on some hosts, the target cross-compiler is not available so do not run this command 141ifneq ($(wildcard $($(combo_2nd_arch_prefix)TARGET_CC)),) 142# We compile with the global cflags to ensure that 143# any flags which affect libgcc are correctly taken 144# into account. 145$(combo_2nd_arch_prefix)TARGET_LIBGCC := \ 146 $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc.a) 147LIBGCC_EH := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a) 148ifneq ($(LIBGCC_EH),libgcc_eh.a) 149 $(combo_2nd_arch_prefix)TARGET_LIBGCC += $(LIBGCC_EH) 150endif 151target_libgcov := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) \ 152 --print-file-name=libgcov.a) 153endif 154 155# Define FDO (Feedback Directed Optimization) options. 156 157$(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS:= 158$(combo_2nd_arch_prefix)TARGET_FDO_LIB:= 159 160ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),) 161 # Set BUILD_FDO_INSTRUMENT=true to turn on FDO instrumentation. 162 # The profile will be generated on /data/local/tmp/profile on the device. 163 $(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-generate=/data/local/tmp/profile -DANDROID_FDO 164 $(combo_2nd_arch_prefix)TARGET_FDO_LIB := $(target_libgcov) 165else 166 # If BUILD_FDO_INSTRUMENT is turned off, then consider doing the FDO optimizations. 167 # Set TARGET_FDO_PROFILE_PATH to set a custom profile directory for your build. 168 ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH)),) 169 $(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH := fdo/profiles/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT) 170 else 171 ifeq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH))),) 172 $(warning Custom $(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH supplied, but directory does not exist. Turn off FDO.) 173 endif 174 endif 175 176 # If the FDO profile directory can't be found, then FDO is off. 177 ifneq ($(strip $(wildcard $($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH))),) 178 $(combo_2nd_arch_prefix)TARGET_FDO_CFLAGS := -fprofile-use=$($(combo_2nd_arch_prefix)TARGET_FDO_PROFILE_PATH) -DANDROID_FDO 179 $(combo_2nd_arch_prefix)TARGET_FDO_LIB := $(target_libgcov) 180 endif 181endif 182 183 184KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 185KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-mips # mips covers both mips and mips64. 186KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 187 188$(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \ 189 $(libc_root)/arch-mips/include \ 190 $(libc_root)/include \ 191 $(libstdc++_root)/include \ 192 $(KERNEL_HEADERS) \ 193 $(libm_root)/include \ 194 $(libm_root)/include/mips \ 195 196$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 197$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 198$(combo_2nd_arch_prefix)TARGET_CRTEND_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 199 200$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 201$(combo_2nd_arch_prefix)TARGET_CRTEND_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 202 203$(combo_2nd_arch_prefix)TARGET_STRIP_MODULE:=true 204 205$(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 206 207$(combo_2nd_arch_prefix)TARGET_CUSTOM_LD_COMMAND := true 208 209define $(combo_2nd_arch_prefix)transform-o-to-shared-lib-inner 210$(hide) $(PRIVATE_CXX) \ 211 -nostdlib -Wl,-soname,$(notdir $@) \ 212 -Wl,--gc-sections \ 213 -Wl,-shared,-Bsymbolic \ 214 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 215 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 216 $(PRIVATE_ALL_OBJECTS) \ 217 -Wl,--whole-archive \ 218 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 219 -Wl,--no-whole-archive \ 220 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 221 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 222 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 223 $(PRIVATE_TARGET_LIBGCC) \ 224 $(PRIVATE_TARGET_FDO_LIB) \ 225 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 226 -o $@ \ 227 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 228 $(PRIVATE_LDFLAGS) \ 229 $(PRIVATE_TARGET_LIBGCC) \ 230 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) 231endef 232 233define $(combo_2nd_arch_prefix)transform-o-to-executable-inner 234$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -fPIE -pie \ 235 -Wl,-dynamic-linker,/system/bin/linker \ 236 -Wl,--gc-sections \ 237 -Wl,-z,nocopyreloc \ 238 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 239 -Wl,-rpath-link=$(PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 240 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O)) \ 241 $(PRIVATE_ALL_OBJECTS) \ 242 -Wl,--whole-archive \ 243 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 244 -Wl,--no-whole-archive \ 245 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 246 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 247 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 248 $(PRIVATE_TARGET_LIBGCC) \ 249 $(PRIVATE_TARGET_FDO_LIB) \ 250 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 251 -o $@ \ 252 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 253 $(PRIVATE_LDFLAGS) \ 254 $(PRIVATE_TARGET_LIBGCC) \ 255 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 256endef 257 258define $(combo_2nd_arch_prefix)transform-o-to-static-executable-inner 259$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \ 260 -Wl,--gc-sections \ 261 -o $@ \ 262 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 263 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \ 264 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 265 $(PRIVATE_LDFLAGS) \ 266 $(PRIVATE_ALL_OBJECTS) \ 267 -Wl,--whole-archive \ 268 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 269 -Wl,--no-whole-archive \ 270 $(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \ 271 -Wl,--start-group \ 272 $(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 273 $(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 274 $(PRIVATE_TARGET_FDO_LIB) \ 275 $(PRIVATE_TARGET_LIBGCC) \ 276 -Wl,--end-group \ 277 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 278endef 279