TARGET_linux-mips64.mk revision 0e7587a9ea58b69c9daa43cd682a4657d23b9b23
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# $(BUILD_COMBOS)/arch/<name>.mk which must contain 23# makefile variable definitions. Their 24# purpose is to allow module Android.mk files to selectively compile 25# different versions of code based upon the funtionality and 26# instructions available in a given architecture version. 27# 28# The blocks also define specific arch_variant_cflags, which 29# include defines, and compiler settings for the given architecture 30# version. 31# 32ifeq ($(strip $(TARGET_ARCH_VARIANT)),) 33TARGET_ARCH_VARIANT := mips64r6 34endif 35 36# Decouple NDK library selection with platform compiler version 37TARGET_NDK_GCC_VERSION := 4.9 38 39ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),) 40TARGET_GCC_VERSION := 4.9 41else 42TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP) 43endif 44 45TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk 46ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),) 47$(error Unknown MIPS architecture variant: $(TARGET_ARCH_VARIANT)) 48endif 49 50include $(TARGET_ARCH_SPECIFIC_MAKEFILE) 51include $(BUILD_SYSTEM)/combo/fdo.mk 52 53# You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else 54ifeq ($(strip $(TARGET_TOOLS_PREFIX)),) 55TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/mips/mips64el-linux-android-$(TARGET_GCC_VERSION) 56TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/mips64el-linux-android- 57endif 58 59TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc 60TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++ 61TARGET_AR := $(TARGET_TOOLS_PREFIX)ar 62TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy 63TARGET_LD := $(TARGET_TOOLS_PREFIX)ld 64TARGET_READELF := $(TARGET_TOOLS_PREFIX)readelf 65TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip 66TARGET_NM := $(TARGET_TOOLS_PREFIX)nm 67 68define $(combo_var_prefix)transform-shared-lib-to-toc 69$(call _gen_toc_command_for_elf,$(1),$(2)) 70endef 71 72TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined 73 74TARGET_mips_CFLAGS := -O2 \ 75 -fomit-frame-pointer \ 76 -fno-strict-aliasing \ 77 -funswitch-loops 78 79# Set FORCE_MIPS_DEBUGGING to "true" in your buildspec.mk 80# or in your environment to gdb debugging easier. 81# Don't forget to do a clean build. 82ifeq ($(FORCE_MIPS_DEBUGGING),true) 83 TARGET_mips_CFLAGS += -fno-omit-frame-pointer 84endif 85 86TARGET_GLOBAL_CFLAGS += \ 87 $(TARGET_mips_CFLAGS) \ 88 -U__unix -U__unix__ -Umips \ 89 -ffunction-sections \ 90 -fdata-sections \ 91 -funwind-tables \ 92 -Wa,--noexecstack \ 93 -Werror=format-security \ 94 -D_FORTIFY_SOURCE=2 \ 95 -no-canonical-prefixes \ 96 -fno-canonical-system-headers \ 97 $(arch_variant_cflags) \ 98 99# Help catch common 32/64-bit errors. 100TARGET_GLOBAL_CFLAGS += \ 101 -Werror=pointer-to-int-cast \ 102 -Werror=int-to-pointer-cast \ 103 -Werror=implicit-function-declaration \ 104 105ifneq ($(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 $(arch_variant_ldflags) 117 118# Disable transitive dependency library symbol resolving. 119TARGET_GLOBAL_LDFLAGS += -Wl,--allow-shlib-undefined 120 121TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden 122 123# More flags/options can be added here 124TARGET_RELEASE_CFLAGS := \ 125 -DNDEBUG \ 126 -g \ 127 -Wstrict-aliasing=2 \ 128 -fgcse-after-reload \ 129 -frerun-cse-after-loop \ 130 -frename-registers 131 132libc_root := bionic/libc 133libm_root := bionic/libm 134 135 136## on some hosts, the target cross-compiler is not available so do not run this command 137ifneq ($(wildcard $(TARGET_CC)),) 138# We compile with the global cflags to ensure that 139# any flags which affect libgcc are correctly taken 140# into account. 141TARGET_LIBGCC := \ 142 $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc.a) 143TARGET_LIBATOMIC := \ 144 $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libatomic.a) 145LIBGCC_EH := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) -print-file-name=libgcc_eh.a) 146ifneq ($(LIBGCC_EH),libgcc_eh.a) 147 TARGET_LIBGCC += $(LIBGCC_EH) 148endif 149TARGET_LIBGCOV := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \ 150 --print-file-name=libgcov.a) 151endif 152 153KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 154KERNEL_HEADERS_COMMON += $(libc_root)/kernel/common 155KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-mips 156# TODO: perhaps use $(libc_root)/kernel/uapi/asm-$(TARGET_ARCH) instead of asm-mips ? 157KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 158 159TARGET_C_INCLUDES := \ 160 $(libc_root)/arch-mips64/include \ 161 $(libc_root)/include \ 162 $(KERNEL_HEADERS) \ 163 $(libm_root)/include \ 164 $(libm_root)/include/mips \ 165 166# TODO: perhaps use $(libm_root)/include/mips64 instead of mips ? 167 168TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 169TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 170TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 171 172TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 173TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 174 175TARGET_PACK_MODULE_RELOCATIONS := true 176 177TARGET_LINKER := /system/bin/linker64 178