TARGET_linux-mips64.mk revision 8bd30fe3cb82e50caab50e4091c5977e5e24db0e
1# 2# Copyright (C) 2013 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 MIPS64. 18# Included by combo/select.mk 19 20# You can set TARGET_ARCH_VARIANT to use an arch version other 21# than mips64r6. 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 $(TARGET_ARCH_VARIANT)),) 34TARGET_ARCH_VARIANT := mips64r6 35endif 36 37# Decouple NDK library selection with platform compiler version 38TARGET_NDK_GCC_VERSION := 4.9 39 40ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),) 41TARGET_GCC_VERSION := 4.9 42else 43TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP) 44endif 45 46TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk 47ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),) 48$(error Unknown MIPS architecture variant: $(TARGET_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 $(TARGET_TOOLS_PREFIX)),) 56TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mips64el-linux-android-$(TARGET_GCC_VERSION) 57TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/mips64el-linux-android- 58endif 59 60TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) 61TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) 62TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) 63TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) 64TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) 65TARGET_READELF := $(TARGET_TOOLS_PREFIX)readelf$(HOST_EXECUTABLE_SUFFIX) 66TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) 67 68TARGET_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-mips64) 83 84TARGET_GLOBAL_CFLAGS += \ 85 $(TARGET_mips_CFLAGS) \ 86 -U__unix -U__unix__ -Umips \ 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 $(android_config_h)) 98 99# Help catch common 32/64-bit errors. 100TARGET_GLOBAL_CFLAGS += \ 101 -Werror=pointer-to-int-cast \ 102 -Werror=int-to-pointer-cast \ 103 -Werror=implicit-function-declaration \ 104 105ifneq ($(ARCH_MIPS_PAGE_SHIFT),) 106TARGET_GLOBAL_CFLAGS += -DPAGE_SHIFT=$(ARCH_MIPS_PAGE_SHIFT) 107endif 108 109TARGET_GLOBAL_LDFLAGS += \ 110 -Wl,-z,noexecstack \ 111 -Wl,-z,relro \ 112 -Wl,-z,now \ 113 -Wl,--build-id=md5 \ 114 -Wl,--warn-shared-textrel \ 115 -Wl,--fatal-warnings \ 116 $(arch_variant_ldflags) 117 118TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 119 120# More flags/options can be added here 121TARGET_RELEASE_CFLAGS := \ 122 -DNDEBUG \ 123 -g \ 124 -Wstrict-aliasing=2 \ 125 -fgcse-after-reload \ 126 -frerun-cse-after-loop \ 127 -frename-registers 128 129libc_root := bionic/libc 130libm_root := bionic/libm 131libthread_db_root := bionic/libthread_db 132 133 134## on some hosts, the target cross-compiler is not available so do not run this command 135ifneq ($(wildcard $(TARGET_CC)),) 136# We compile with the global cflags to ensure that 137# any flags which affect libgcc are correctly taken 138# into account. 139TARGET_LIBGCC := \ 140 $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc.a) 141TARGET_LIBATOMIC := \ 142 $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libatomic.a) 143LIBGCC_EH := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a) 144ifneq ($(LIBGCC_EH),libgcc_eh.a) 145 TARGET_LIBGCC += $(LIBGCC_EH) 146endif 147TARGET_LIBGCOV := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \ 148 --print-file-name=libgcov.a) 149endif 150 151KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 152KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-mips 153# TODO: perhaps use $(libc_root)/kernel/uapi/asm-$(TARGET_ARCH) instead of asm-mips ? 154KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 155 156TARGET_C_INCLUDES := \ 157 $(libc_root)/arch-mips64/include \ 158 $(libc_root)/include \ 159 $(KERNEL_HEADERS) \ 160 $(libm_root)/include \ 161 $(libm_root)/include/mips \ 162 $(libthread_db_root)/include 163# TODO: perhaps use $(libm_root)/include/mips64 instead of mips ? 164 165TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 166TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 167TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 168 169TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 170TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 171 172TARGET_PACK_MODULE_RELOCATIONS := true 173 174TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libstdc++ libm 175 176TARGET_LINKER := /system/bin/linker64 177