Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 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 ARM. |
| 18 | # Included by combo/select.mk |
| 19 | |
| 20 | # You can set TARGET_ARCH_VARIANT to use an arch version other |
| 21 | # than ARMv5TE. Each value should correspond to a file named |
| 22 | # $(BUILD_COMBOS)/arch/<name>.mk which must contain |
| 23 | # makefile variable definitions similar to the preprocessor |
| 24 | # defines in build/core/combo/include/arch/<combo>/AndroidConfig.h. Their |
| 25 | # purpose is to allow module Android.mk files to selectively compile |
| 26 | # different versions of code based upon the funtionality and |
| 27 | # instructions available in a given architecture version. |
| 28 | # |
| 29 | # The blocks also define specific arch_variant_cflags, which |
| 30 | # include defines, and compiler settings for the given architecture |
| 31 | # version. |
| 32 | # |
| 33 | ifeq ($(strip $(TARGET_ARCH_VARIANT)),) |
| 34 | TARGET_ARCH_VARIANT := armv8 |
| 35 | endif |
| 36 | |
Ben Cheng | 4de6fa4 | 2014-04-10 22:46:26 -0700 | [diff] [blame] | 37 | # Decouple NDK library selection with platform compiler version |
Przemyslaw Szczepaniak | ac6a919 | 2014-07-17 17:54:41 +0100 | [diff] [blame] | 38 | TARGET_NDK_GCC_VERSION := 4.9 |
Ben Cheng | 4de6fa4 | 2014-04-10 22:46:26 -0700 | [diff] [blame] | 39 | |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 40 | ifeq ($(strip $(TARGET_GCC_VERSION_EXP)),) |
Ben Cheng | d033121 | 2014-05-19 16:22:21 -0700 | [diff] [blame] | 41 | TARGET_GCC_VERSION := 4.9 |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 42 | else |
| 43 | TARGET_GCC_VERSION := $(TARGET_GCC_VERSION_EXP) |
| 44 | endif |
| 45 | |
| 46 | TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk |
| 47 | ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),) |
| 48 | $(error Unknown ARM architecture version: $(TARGET_ARCH_VARIANT)) |
| 49 | endif |
| 50 | |
| 51 | include $(TARGET_ARCH_SPECIFIC_MAKEFILE) |
Dehao Chen | 25671e1 | 2014-07-23 14:28:58 -0700 | [diff] [blame] | 52 | include $(BUILD_SYSTEM)/combo/fdo.mk |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 53 | |
| 54 | # You can set TARGET_TOOLS_PREFIX to get gcc from somewhere else |
| 55 | ifeq ($(strip $(TARGET_TOOLS_PREFIX)),) |
| 56 | TARGET_TOOLCHAIN_ROOT := prebuilts/gcc/$(HOST_PREBUILT_TAG)/aarch64/aarch64-linux-android-$(TARGET_GCC_VERSION) |
| 57 | TARGET_TOOLS_PREFIX := $(TARGET_TOOLCHAIN_ROOT)/bin/aarch64-linux-android- |
| 58 | endif |
| 59 | |
| 60 | TARGET_CC := $(TARGET_TOOLS_PREFIX)gcc$(HOST_EXECUTABLE_SUFFIX) |
| 61 | TARGET_CXX := $(TARGET_TOOLS_PREFIX)g++$(HOST_EXECUTABLE_SUFFIX) |
| 62 | TARGET_AR := $(TARGET_TOOLS_PREFIX)ar$(HOST_EXECUTABLE_SUFFIX) |
| 63 | TARGET_OBJCOPY := $(TARGET_TOOLS_PREFIX)objcopy$(HOST_EXECUTABLE_SUFFIX) |
| 64 | TARGET_LD := $(TARGET_TOOLS_PREFIX)ld$(HOST_EXECUTABLE_SUFFIX) |
Christopher Ferris | a6e2f93 | 2014-03-18 14:50:09 -0700 | [diff] [blame] | 65 | TARGET_READELF := $(TARGET_TOOLS_PREFIX)readelf$(HOST_EXECUTABLE_SUFFIX) |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 66 | TARGET_STRIP := $(TARGET_TOOLS_PREFIX)strip$(HOST_EXECUTABLE_SUFFIX) |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 67 | |
| 68 | TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined |
| 69 | |
Elliott Hughes | c294779 | 2013-12-16 18:01:19 -0800 | [diff] [blame] | 70 | TARGET_GLOBAL_CFLAGS += \ |
| 71 | -fno-strict-aliasing \ |
| 72 | |
Colin Cross | 4f0eb7d | 2014-01-21 19:35:38 -0800 | [diff] [blame] | 73 | android_config_h := $(call select-android-config-h,linux-arm64) |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 74 | |
| 75 | TARGET_GLOBAL_CFLAGS += \ |
Ben Cheng | d033121 | 2014-05-19 16:22:21 -0700 | [diff] [blame] | 76 | -fstack-protector \ |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 77 | -ffunction-sections \ |
| 78 | -fdata-sections \ |
| 79 | -funwind-tables \ |
| 80 | -Wa,--noexecstack \ |
| 81 | -Werror=format-security \ |
| 82 | -D_FORTIFY_SOURCE=2 \ |
| 83 | -fno-short-enums \ |
Andrew Hsieh | 48f239c | 2014-05-09 14:13:13 +0800 | [diff] [blame] | 84 | -no-canonical-prefixes \ |
| 85 | -fno-canonical-system-headers \ |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 86 | $(arch_variant_cflags) \ |
| 87 | -include $(android_config_h) \ |
| 88 | -I $(dir $(android_config_h)) |
| 89 | |
Elliott Hughes | 18042e1 | 2014-02-05 16:23:47 -0800 | [diff] [blame] | 90 | # Help catch common 32/64-bit errors. |
| 91 | TARGET_GLOBAL_CFLAGS += \ |
| 92 | -Werror=pointer-to-int-cast \ |
| 93 | -Werror=int-to-pointer-cast \ |
Colin Cross | 8f47fc3 | 2014-01-27 17:34:21 -0800 | [diff] [blame] | 94 | |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 95 | TARGET_GLOBAL_CFLAGS += -fno-strict-volatile-bitfields |
| 96 | |
| 97 | # This is to avoid the dreaded warning compiler message: |
| 98 | # note: the mangling of 'va_list' has changed in GCC 4.4 |
| 99 | # |
| 100 | # The fact that the mangling changed does not affect the NDK ABI |
| 101 | # very fortunately (since none of the exposed APIs used va_list |
| 102 | # in their exported C++ functions). Also, GCC 4.5 has already |
| 103 | # removed the warning from the compiler. |
| 104 | # |
| 105 | TARGET_GLOBAL_CFLAGS += -Wno-psabi |
| 106 | |
| 107 | TARGET_GLOBAL_LDFLAGS += \ |
| 108 | -Wl,-z,noexecstack \ |
Nick Kralevich | 4554576 | 2014-05-30 15:45:24 -0700 | [diff] [blame] | 109 | -Wl,-z,relro \ |
| 110 | -Wl,-z,now \ |
Dehao Chen | 734de7a | 2015-01-14 11:21:22 -0800 | [diff] [blame^] | 111 | -Wl,--build-id=md5 \ |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 112 | -Wl,--warn-shared-textrel \ |
| 113 | -Wl,--fatal-warnings \ |
Andrew Hsieh | 50536c2 | 2014-04-15 11:54:06 -0700 | [diff] [blame] | 114 | -Wl,-maarch64linux \ |
Dmitriy Ivanov | 179685c | 2014-11-13 14:51:10 -0800 | [diff] [blame] | 115 | -Wl,--hash-style=gnu \ |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 116 | $(arch_variant_ldflags) |
| 117 | |
Ying Wang | cf6f808 | 2014-12-19 16:37:46 -0800 | [diff] [blame] | 118 | # Disable transitive dependency library symbol resolving. |
| 119 | TARGET_GLOBAL_LDFLAGS += -Wl,--allow-shlib-undefined |
| 120 | |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 121 | TARGET_GLOBAL_CPPFLAGS += -fvisibility-inlines-hidden |
| 122 | |
| 123 | # More flags/options can be added here |
| 124 | TARGET_RELEASE_CFLAGS := \ |
| 125 | -DNDEBUG \ |
| 126 | -O2 -g \ |
| 127 | -Wstrict-aliasing=2 \ |
| 128 | -fgcse-after-reload \ |
| 129 | -frerun-cse-after-loop \ |
| 130 | -frename-registers |
| 131 | |
| 132 | libc_root := bionic/libc |
| 133 | libm_root := bionic/libm |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 134 | |
Ben Cheng | 71c36eb | 2013-10-28 10:27:58 -0700 | [diff] [blame] | 135 | TARGET_LIBGCC := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \ |
| 136 | -print-libgcc-file-name) |
Andrew Hsieh | 4c952d7 | 2014-05-29 02:47:27 -0700 | [diff] [blame] | 137 | TARGET_LIBATOMIC := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \ |
| 138 | -print-file-name=libatomic.a) |
Dan Albert | 4bbc6c7 | 2014-09-19 14:25:57 -0700 | [diff] [blame] | 139 | TARGET_LIBGCOV := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \ |
| 140 | -print-file-name=libgcov.a) |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 141 | |
Elliott Hughes | dddb566 | 2014-01-10 16:35:08 -0800 | [diff] [blame] | 142 | KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi |
| 143 | KERNEL_HEADERS_ARCH := $(libc_root)/kernel/uapi/asm-$(TARGET_ARCH) |
Elliott Hughes | 26990f5 | 2013-12-20 15:37:55 -0800 | [diff] [blame] | 144 | KERNEL_HEADERS := $(KERNEL_HEADERS_COMMON) $(KERNEL_HEADERS_ARCH) |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 145 | |
| 146 | TARGET_C_INCLUDES := \ |
Colin Cross | 4f0eb7d | 2014-01-21 19:35:38 -0800 | [diff] [blame] | 147 | $(libc_root)/arch-arm64/include \ |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 148 | $(libc_root)/include \ |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 149 | $(KERNEL_HEADERS) \ |
| 150 | $(libm_root)/include \ |
Colin Cross | 4f0eb7d | 2014-01-21 19:35:38 -0800 | [diff] [blame] | 151 | $(libm_root)/include/arm64 \ |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 152 | |
Ben Cheng | 71c36eb | 2013-10-28 10:27:58 -0700 | [diff] [blame] | 153 | TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o |
| 154 | TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o |
| 155 | TARGET_CRTEND_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_android.o |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 156 | |
Ben Cheng | 71c36eb | 2013-10-28 10:27:58 -0700 | [diff] [blame] | 157 | TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_so.o |
| 158 | TARGET_CRTEND_SO_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtend_so.o |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 159 | |
| 160 | TARGET_STRIP_MODULE:=true |
| 161 | |
Dan Albert | b05f2ca | 2014-09-12 14:46:57 -0700 | [diff] [blame] | 162 | TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES := libc libm |
Ben Cheng | db4fc20 | 2013-10-04 16:02:59 -0700 | [diff] [blame] | 163 | |
Dan Albert | e088c0d | 2014-11-13 10:15:46 -0800 | [diff] [blame] | 164 | TARGET_LINKER := /system/bin/linker64 |