1 # 2 # Copyright (C) 2006 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 x86_64 as a target. 18 # Included by combo/select.mk 19 20 # Provide a default variant. 21 ifeq ($(strip $(TARGET_ARCH_VARIANT)),) 22 TARGET_ARCH_VARIANT := x86_64 23 endif 24 25 # Decouple NDK library selection with platform compiler version 26 TARGET_NDK_GCC_VERSION := 4.9 27 28 ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),) 29 TARGET_GCC_VERSION := 4.9 30 else 31 TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP) 32 endif 33 34 # Include the arch-variant-specific configuration file. 35 # Its role is to define various ARCH_X86_HAVE_XXX feature macros, 36 # plus initial values for TARGET_GLOBAL_CFLAGS 37 # 38 TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk 39 ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),) 40 $(error Unknown $(TARGET_ARCH) architecture version: $(TARGET_ARCH_VARIANT)) 41 endif 42 43 include $(TARGET_ARCH_SPECIFIC_MAKEFILE) 44 include $(BUILD_SYSTEM)/combo/fdo.mk 45 46 # You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else 47 ifeq ($(strip $(TARGET_TOOLS_PREFIX)),) 48 TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/x86/x86_64-linux-android-$(TARGET_GCC_VERSION) 49 TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/x86_64-linux-android- 50 endif 51 52 TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc 53 TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++ 54 TARGET_AR := $(TARGET_TOOLS_PREFIX)ar 55 TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy 56 TARGET_LD := $(TARGET_TOOLS_PREFIX)ld 57 TARGET_READELF := $(TARGET_TOOLS_PREFIX)readelf 58 TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip 59 TARGET_NM := $(TARGET_TOOLS_PREFIX)nm 60 61 define $(combo_var_prefix)transform-shared-lib-to-toc 62 $(call _gen_toc_command_for_elf,$(1),$(2)) 63 endef 64 65 ifneq ($(wildcard $(TARGET_CC)),) 66 TARGET_LIBGCC := \ 67 $(shell $(TARGET_CC) -m64 -print-file-name=libgcc.a) 68 TARGET_LIBATOMIC := \ 69 $(shell $(TARGET_CC) -m64 -print-file-name=libatomic.a) 70 TARGET_LIBGCOV := \ 71 $(shell $(TARGET_CC) -m64 -print-file-name=libgcov.a) 72 endif 73 74 TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined 75 76 libc_root := bionic/libc 77 libm_root := bionic/libm 78 79 KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi 80 KERNEL_HEADERS_COMMON += $(libc_root)/kernel/common 81 KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-x86 # x86 covers both x86 and x86_64. 82 KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) 83 84 TARGET_GLOBAL_CFLAGS += \ 85 -O2 \ 86 -Wa,--noexecstack \ 87 -Werror=format-security \ 88 -D_FORTIFY_SOURCE=2 \ 89 -Wstrict-aliasing=2 \ 90 -ffunction-sections \ 91 -finline-functions \ 92 -finline-limit=300 \ 93 -fno-short-enums \ 94 -fstrict-aliasing \ 95 -funswitch-loops \ 96 -funwind-tables \ 97 -fstack-protector-strong \ 98 -m64 \ 99 -no-canonical-prefixes \ 100 -fno-canonical-system-headers 101 102 # Help catch common 32/64-bit errors. 103 TARGET_GLOBAL_CFLAGS += \ 104 -Werror=pointer-to-int-cast \ 105 -Werror=int-to-pointer-cast \ 106 -Werror=implicit-function-declaration \ 107 108 TARGET_GLOBAL_CFLAGS += $(arch_variant_cflags) 109 110 ifeq ($(ARCH_X86_HAVE_SSSE3),true) # yes, really SSSE3, not SSE3! 111 TARGET_GLOBAL_CFLAGS += -DUSE_SSSE3 -mssse3 112 endif 113 ifeq ($(ARCH_X86_HAVE_SSE4),true) 114 TARGET_GLOBAL_CFLAGS += -msse4 115 endif 116 ifeq ($(ARCH_X86_HAVE_SSE4_1),true) 117 TARGET_GLOBAL_CFLAGS += -msse4.1 118 endif 119 ifeq ($(ARCH_X86_HAVE_SSE4_2),true) 120 TARGET_GLOBAL_CFLAGS += -msse4.2 121 endif 122 ifeq ($(ARCH_X86_HAVE_POPCNT),true) 123 TARGET_GLOBAL_CFLAGS += -mpopcnt 124 endif 125 ifeq ($(ARCH_X86_HAVE_AVX),true) 126 TARGET_GLOBAL_CFLAGS += -mavx 127 endif 128 ifeq ($(ARCH_X86_HAVE_AES_NI),true) 129 TARGET_GLOBAL_CFLAGS += -maes 130 endif 131 132 TARGET_GLOBAL_LDFLAGS += -m64 133 134 TARGET_GLOBAL_LDFLAGS += -Wl,-z,noexecstack 135 TARGET_GLOBAL_LDFLAGS += -Wl,-z,relro -Wl,-z,now 136 TARGET_GLOBAL_LDFLAGS += -Wl,--build-id=md5 137 TARGET_GLOBAL_LDFLAGS += -Wl,--warn-shared-textrel 138 TARGET_GLOBAL_LDFLAGS += -Wl,--fatal-warnings 139 TARGET_GLOBAL_LDFLAGS += -Wl,--gc-sections 140 TARGET_GLOBAL_LDFLAGS += -Wl,--hash-style=gnu 141 TARGET_GLOBAL_LDFLAGS += -Wl,--no-undefined-version 142 143 TARGET_C_INCLUDES := \ 144 $(libc_root)/arch-x86_64/include \ 145 $(libc_root)/include \ 146 $(KERNEL_HEADERS) \ 147 $(libm_root)/include \ 148 $(libm_root)/include/amd64 \ 149 150 TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o 151 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o 152 TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o 153 154 TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o 155 TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o 156 157 TARGET_LINKER := /system/bin/linker64 158 159 TARGET_GLOBAL_YASM_FLAGS := -f elf64 -m amd64 160
