TARGET_linux-mips.mk revision 5f5c48f0f1b6bef252410575d9225507e5608c0b
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) 52include $(BUILD_SYSTEM)/combo/fdo.mk 53 54# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else 55ifeq ($(strip $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)),) 56$(combo_2nd_arch_prefix)TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mipsel-linux-android-$($(combo_2nd_arch_prefix)TARGET_GCC_VERSION) 57$(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX := $($(combo_2nd_arch_prefix)TARGET_TOOLCHAIN_ROOT)/bin/mipsel-linux-android- 58endif 59 60$(combo_2nd_arch_prefix)TARGET_CC := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) 61$(combo_2nd_arch_prefix)TARGET_CXX := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) 62$(combo_2nd_arch_prefix)TARGET_AR := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) 63$(combo_2nd_arch_prefix)TARGET_OBJCOPY := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) 64$(combo_2nd_arch_prefix)TARGET_LD := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) 65$(combo_2nd_arch_prefix)TARGET_READELF := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)readelf$(HOST_EXECUTABLE_SUFFIX) 66$(combo_2nd_arch_prefix)TARGET_STRIP := $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) 67 68$(combo_2nd_arch_prefix)TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined 69 70TARGET_mips_CFLAGS := -O2 \ 71 -fomit-frame-pointer \ 72 -fno-strict-aliasing \ 73 -funswitch-loops 74 75# Set FORCE_MIPS_DEBUGGING to "true" in your buildspec.mk 76# or in your environment to gdb debugging easier. 77# Don't forget to do a clean build. 78ifeq ($(FORCE_MIPS_DEBUGGING),true) 79 TARGET_mips_CFLAGS += -fno-omit-frame-pointer 80endif 81 82android_config_h := $(call select-android-config-h,linux-mips) 83 84$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += \ 85 $(TARGET_mips_CFLAGS) \ 86 -U__unix -U__unix__ -Umips \ 87 -fpic -fPIE\ 88 -ffunction-sections \ 89 -fdata-sections \ 90 -funwind-tables \ 91 -Wa,--noexecstack \ 92 -Werror=format-security \ 93 -D_FORTIFY_SOURCE=2 \ 94 -no-canonical-prefixes \ 95 -fno-canonical-system-headers \ 96 $(arch_variant_cflags) \ 97 -include $(android_config_h) \ 98 -I $(dir $(android_config_h)) 99 100# This warning causes dalvik not to build with gcc 4.6+ and -Werror. 101# We cannot turn it off blindly since the option is not available 102# in gcc-4.4.x. 103ifneq ($(filter 4.6 4.6.% 4.7 4.7.% 4.8, $($(combo_2nd_arch_prefix)TARGET_GCC_VERSION)),) 104$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -Wno-unused-but-set-variable \ 105 -fno-strict-volatile-bitfields 106endif 107 108# This is to avoid the dreaded warning compiler message: 109# note: the mangling of 'va_list' has changed in GCC 4.4 110# 111# The fact that the mangling changed does not affect the NDK ABI 112# very fortunately (since none of the exposed APIs used va_list 113# in their exported C++ functions). Also, GCC 4.5 has already 114# removed the warning from the compiler. 115# 116$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -Wno-psabi 117 118ifneq ($(ARCH_MIPS_PAGE_SHIFT),) 119$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -DPAGE_SHIFT=$(ARCH_MIPS_PAGE_SHIFT) 120endif 121 122$(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += \ 123 -Wl,-z,noexecstack \ 124 -Wl,-z,relro \ 125 -Wl,-z,now \ 126 -Wl,--warn-shared-textrel \ 127 -Wl,--fatal-warnings \ 128 $(arch_variant_ldflags) 129 130$(combo_2nd_arch_prefix)TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 131 132# More flags/options can be added here 133$(combo_2nd_arch_prefix)TARGET_RELEASE_CFLAGS := \ 134 -DNDEBUG \ 135 -g \ 136 -Wstrict-aliasing=2 \ 137 -fgcse-after-reload \ 138 -frerun-cse-after-loop \ 139 -frename-registers 140 141libc_root := bionic/libc 142libm_root := bionic/libm 143libstdc++_root := bionic/libstdc++ 144 145 146## on some hosts, the target cross-compiler is not available so do not run this command 147ifneq ($(wildcard $($(combo_2nd_arch_prefix)TARGET_CC)),) 148# We compile with the global cflags to ensure that 149# any flags which affect libgcc are correctly taken 150# into account. 151$(combo_2nd_arch_prefix)TARGET_LIBGCC := \ 152 $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc.a) 153$(combo_2nd_arch_prefix)TARGET_LIBATOMIC := \ 154 $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libatomic.a) 155LIBGCC_EH := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a) 156ifneq ($(LIBGCC_EH),libgcc_eh.a) 157 $(combo_2nd_arch_prefix)TARGET_LIBGCC += $(LIBGCC_EH) 158endif 159endif 160 161KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 162KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-mips # mips covers both mips and mips64. 163KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 164 165$(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \ 166 $(libc_root)/arch-mips/include \ 167 $(libc_root)/include \ 168 $(libstdc++_root)/include \ 169 $(KERNEL_HEADERS) \ 170 $(libm_root)/include \ 171 $(libm_root)/include/mips \ 172 173$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 174$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 175$(combo_2nd_arch_prefix)TARGET_CRTEND_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 176 177$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 178$(combo_2nd_arch_prefix)TARGET_CRTEND_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 179 180$(combo_2nd_arch_prefix)TARGET_STRIP_MODULE:=true 181 182$(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 183 184$(combo_2nd_arch_prefix)TARGET_CUSTOM_LD_COMMAND := true 185 186define $(combo_2nd_arch_prefix)transform-o-to-shared-lib-inner 187$(hide) $(PRIVATE_CXX) \ 188 -nostdlib -Wl,-soname,$(notdir $@) \ 189 -Wl,--gc-sections \ 190 -shared \ 191 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 192 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \ 193 $(PRIVATE_ALL_OBJECTS) \ 194 -Wl,--whole-archive \ 195 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 196 -Wl,--no-whole-archive \ 197 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--start-group) \ 198 $(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \ 199 $(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \ 200 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 201 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 202 -o $@ \ 203 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 204 $(PRIVATE_LDFLAGS) \ 205 $(PRIVATE_TARGET_LIBATOMIC) \ 206 $(if $(PRIVATE_LIBCXX),,$(PRIVATE_TARGET_LIBGCC)) \ 207 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O)) \ 208 $(PRIVATE_LDLIBS) 209endef 210 211define $(combo_2nd_arch_prefix)transform-o-to-executable-inner 212$(hide) $(PRIVATE_CXX) -nostdlib -Bdynamic -fPIE -pie \ 213 -Wl,-dynamic-linker,/system/bin/linker \ 214 -Wl,--gc-sections \ 215 -Wl,-z,nocopyreloc \ 216 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 217 -Wl,-rpath-link=$(PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES) \ 218 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_DYNAMIC_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 $(if $(TARGET_BUILD_APPS),$(PRIVATE_TARGET_LIBGCC)) \ 227 $(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \ 228 -o $@ \ 229 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 230 $(PRIVATE_LDFLAGS) \ 231 $(PRIVATE_TARGET_LIBATOMIC) \ 232 $(if $(PRIVATE_LIBCXX),,$(PRIVATE_TARGET_LIBGCC)) \ 233 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) \ 234 $(PRIVATE_LDLIBS) 235endef 236 237define $(combo_2nd_arch_prefix)transform-o-to-static-executable-inner 238$(hide) $(PRIVATE_CXX) -nostdlib -Bstatic \ 239 -Wl,--gc-sections \ 240 -o $@ \ 241 $(PRIVATE_TARGET_GLOBAL_LD_DIRS) \ 242 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_STATIC_O)) \ 243 $(PRIVATE_TARGET_GLOBAL_LDFLAGS) \ 244 $(PRIVATE_LDFLAGS) \ 245 $(PRIVATE_ALL_OBJECTS) \ 246 -Wl,--whole-archive \ 247 $(call normalize-target-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \ 248 -Wl,--no-whole-archive \ 249 $(call normalize-target-libraries,$(filter-out %libc_nomalloc.a,$(filter-out %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES)))) \ 250 -Wl,--start-group \ 251 $(call normalize-target-libraries,$(filter %libc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 252 $(call normalize-target-libraries,$(filter %libc_nomalloc.a,$(PRIVATE_ALL_STATIC_LIBRARIES))) \ 253 $(PRIVATE_TARGET_LIBATOMIC) \ 254 $(if $(PRIVATE_LIBCXX),,$(PRIVATE_TARGET_LIBGCC)) \ 255 -Wl,--end-group \ 256 $(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_O)) 257endef 258