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_$(combo_2nd_arch_prefix)CPU_VARIANT := generic
40endif
41
42# This sanity checks TARGET_2ND_ARCH_VARIANT against the lists above.
43ifneq (,$(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)
67include $(BUILD_SYSTEM)/combo/fdo.mk
68
69define $(combo_var_prefix)transform-shared-lib-to-toc
70$(call _gen_toc_command_for_elf,$(1),$(2))
71endef
72
73$(combo_2nd_arch_prefix)TARGET_PACK_MODULE_RELOCATIONS := true
74
75$(combo_2nd_arch_prefix)TARGET_LINKER := /system/bin/linker
76