TARGET_linux-mips.mk revision d896883bfe6a0777dd4cb782792230a36346a9fe
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 := 4.9 39 40ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),) 41$(combo_2nd_arch_prefix)TARGET_GCC_VERSION := 4.9 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/mips64el-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/mips64el-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 -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 $(android_config_h)) 98 99ifneq ($(ARCH_MIPS_PAGE_SHIFT),) 100$(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS += -DPAGE_SHIFT=$(ARCH_MIPS_PAGE_SHIFT) 101endif 102 103$(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += \ 104 -Wl,-z,noexecstack \ 105 -Wl,-z,relro \ 106 -Wl,-z,now \ 107 -Wl,--build-id=md5 \ 108 -Wl,--warn-shared-textrel \ 109 -Wl,--fatal-warnings \ 110 $(arch_variant_ldflags) 111 112# Disable transitive dependency library symbol resolving. 113$(combo_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS += -Wl,--allow-shlib-undefined 114 115$(combo_2nd_arch_prefix)TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 116 117# More flags/options can be added here 118$(combo_2nd_arch_prefix)TARGET_RELEASE_CFLAGS := \ 119 -DNDEBUG \ 120 -g \ 121 -Wstrict-aliasing=2 \ 122 -fgcse-after-reload \ 123 -frerun-cse-after-loop \ 124 -frename-registers 125 126libc_root := bionic/libc 127libm_root := bionic/libm 128 129 130## on some hosts, the target cross-compiler is not available so do not run this command 131ifneq ($(wildcard $($(combo_2nd_arch_prefix)TARGET_CC)),) 132# We compile with the global cflags to ensure that 133# any flags which affect libgcc are correctly taken 134# into account. 135$(combo_2nd_arch_prefix)TARGET_LIBGCC := \ 136 $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc.a) 137$(combo_2nd_arch_prefix)TARGET_LIBATOMIC := \ 138 $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libatomic.a) 139LIBGCC_EH := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a) 140ifneq ($(LIBGCC_EH),libgcc_eh.a) 141 $(combo_2nd_arch_prefix)TARGET_LIBGCC += $(LIBGCC_EH) 142endif 143$(combo_2nd_arch_prefix)TARGET_LIBGCOV := $(shell $($(combo_2nd_arch_prefix)TARGET_CC) $($(combo_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS) \ 144 --print-file-name=libgcov.a) 145endif 146 147KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 148KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-mips # mips covers both mips and mips64. 149KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 150 151$(combo_2nd_arch_prefix)TARGET_C_INCLUDES := \ 152 $(libc_root)/arch-mips/include \ 153 $(libc_root)/include \ 154 $(KERNEL_HEADERS) \ 155 $(libm_root)/include \ 156 $(libm_root)/include/mips \ 157 158$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 159$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 160$(combo_2nd_arch_prefix)TARGET_CRTEND_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 161 162$(combo_2nd_arch_prefix)TARGET_CRTBEGIN_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 163$(combo_2nd_arch_prefix)TARGET_CRTEND_SO_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 164 165$(combo_2nd_arch_prefix)TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm 166 167$(combo_2nd_arch_prefix)TARGET_LINKER := /system/bin/linker 168