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 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# $(BUILD_COMBOS)/arch/<name>.mk which must contain 23# makefile variable definitions. Their 24# purpose is to allow module Android.mk files to selectively compile 25# different versions of code based upon the funtionality and 26# instructions available in a given architecture version. 27# 28# The blocks also define specific arch_variant_cflags, which 29# include defines, and compiler settings for the given architecture 30# version. 31# 32 33KNOWN_ARMv8_CORES := cortex-a53 cortex-a53.a57 cortex-a55 cortex-a73 cortex-a75 cortex-a76 34KNOWN_ARMv8_CORES += kryo kryo385 exynos-m1 exynos-m2 35 36KNOWN_ARMv82a_CORES := cortex-a55 cortex-a75 kryo385 37 38ifeq (,$(strip $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT))) 39 TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT := generic 40endif 41 42# This quickly checks TARGET_2ND_ARCH_VARIANT against the lists above. 43ifneq (,$(filter $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT), $(KNOWN_ARMv82a_CORES))) 44 ifeq (,$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)) 45 TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT := armv8-2a 46 else ifneq (armv8-2a,$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)) 47 $(error Incorrect TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT, $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT). Use armv8-2a instead.) 48 endif 49else ifneq (,$(filter $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT), $(KNOWN_ARMv8_CORES))) 50 ifeq (,$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)) 51 TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT := armv8-a 52 else ifneq ($(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT),armv8-a) 53 $(error Incorrect TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT, $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT). Use armv8-a instead.) 54 endif 55endif 56 57ifeq ($(strip $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)),) 58 $(error TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT must be set) 59endif 60 61TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT).mk 62ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),) 63 $(error Unknown ARM architecture version: $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)) 64endif 65 66include $(TARGET_ARCH_SPECIFIC_MAKEFILE) 67 68define $(combo_var_prefix)transform-shared-lib-to-toc 69$(call _gen_toc_command_for_elf,$(1),$(2)) 70endef 71 72$(combo_2nd_arch_prefix)TARGET_PACK_MODULE_RELOCATIONS := true 73 74$(combo_2nd_arch_prefix)TARGET_LINKER := /system/bin/linker 75