1 variant_list := $(filter AUX-%,$(MAKECMDGOALS)) 2 3 ifdef variant_list 4 AUX_OS_VARIANT_LIST := $(patsubst AUX-%,%,$(variant_list)) 5 else 6 AUX_OS_VARIANT_LIST := $(TARGET_AUX_OS_VARIANT_LIST) 7 endif 8 9 # exclude AUX targets from build 10 ifeq ($(AUX_OS_VARIANT_LIST),none) 11 AUX_OS_VARIANT_LIST := 12 endif 13 14 # temporary workaround to support external toolchain 15 ifeq ($(NANOHUB_TOOLCHAIN),) 16 AUX_OS_VARIANT_LIST := 17 endif 18 19 # setup toolchain paths for various CPU architectures 20 # this one will come from android prebuilts eventually 21 AUX_TOOLCHAIN_cortexm4 := $(NANOHUB_TOOLCHAIN) 22 ifeq ($(wildcard $(AUX_TOOLCHAIN_cortexm4)gcc),) 23 AUX_TOOLCHAIN_cortexm4:= 24 endif 25 26 # there is no MAKE var that defines path to HOST toolchain 27 # all the interesting paths are hardcoded in soong, and are not available from here 28 # There is no other way but to hardcode them again, as we may need host x86 toolcain for AUX 29 ifeq ($(HOST_OS),linux) 30 AUX_TOOLCHAIN_x86 := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/bin/x86_64-linux- 31 endif 32 33 # setup AUX globals 34 AUX_SHLIB_SUFFIX := .so 35 AUX_GLOBAL_ARFLAGS := cqsD 36 AUX_STATIC_LIB_SUFFIX := .a 37 38 # Load ever-lasting "indexed" version of AUX variant environment; it is treated as READ-ONLY from this 39 # moment on. 40 # 41 # $(1) - variant 42 # no return value 43 define aux-variant-setup-paths 44 $(eval AUX_OUT_ROOT_$(1) := $(PRODUCT_OUT)/aux/$(1)) \ 45 $(eval AUX_COMMON_OUT_ROOT_$(1) := $(AUX_OUT_ROOT_$(1))/common) \ 46 $(eval AUX_OUT_$(1) := $(AUX_OUT_ROOT_$(1))/$(AUX_OS_$(1))-$(AUX_ARCH_$(1))-$(AUX_CPU_$(1))) \ 47 $(eval AUX_OUT_INTERMEDIATES_$(1) := $(AUX_OUT_$(1))/obj) \ 48 $(eval AUX_OUT_COMMON_INTERMEDIATES_$(1) := $(AUX_COMMON_OUT_ROOT_$(1))/obj) \ 49 $(eval AUX_OUT_HEADERS_$(1) := $(AUX_OUT_INTERMEDIATES_$(1))/include) \ 50 $(eval AUX_OUT_NOTICE_FILES_$(1) := $(AUX_OUT_INTERMEDIATES_$(1))/NOTICE_FILES) \ 51 $(eval AUX_OUT_FAKE_$(1) := $(AUX_OUT_$(1))/fake_packages) \ 52 $(eval AUX_OUT_GEN_$(1) := $(AUX_OUT_$(1))/gen) \ 53 $(eval AUX_OUT_COMMON_GEN_$(1) := $(AUX_COMMON_OUT_ROOT_$(1))/gen) \ 54 $(eval AUX_OUT_EXECUTABLES_$(1) := $(AUX_OUT_$(1))/bin) \ 55 $(eval AUX_OUT_UNSTRIPPED_$(1) := $(AUX_OUT_$(1))/symbols) 56 endef 57 58 # Copy "indexed" AUX environment for given VARIANT into 59 # volatile not-indexed set of variables for simplicity of access. 60 # Injection of index support throughout the build system is suboptimal 61 # hence volatile environment is constructed 62 # Unlike HOST*, TARGET* variables, AUX* variables are NOT read-only, but their 63 # indexed versions are. 64 # 65 # $(1) - variant 66 # no return value 67 define aux-variant-load-env 68 $(eval AUX_OS_VARIANT:=$(1)) \ 69 $(eval AUX_OS:=$(AUX_OS_$(1))) \ 70 $(eval AUX_ARCH:=$(AUX_ARCH_$(1))) \ 71 $(eval AUX_SUBARCH:=$(AUX_SUBARCH_$(1))) \ 72 $(eval AUX_CPU:=$(AUX_CPU_$(1))) \ 73 $(eval AUX_OS_PATH:=$(AUX_OS_PATH_$(1))) \ 74 $(eval AUX_OUT_ROOT := $(AUX_OUT_ROOT_$(1))) \ 75 $(eval AUX_COMMON_OUT_ROOT := $(AUX_COMMON_OUT_ROOT_$(1))) \ 76 $(eval AUX_OUT := $(AUX_OUT_$(1))) \ 77 $(eval AUX_OUT_INTERMEDIATES := $(AUX_OUT_INTERMEDIATES_$(1))) \ 78 $(eval AUX_OUT_COMMON_INTERMEDIATES := $(AUX_OUT_COMMON_INTERMEDIATES_$(1))) \ 79 $(eval AUX_OUT_HEADERS := $(AUX_OUT_HEADERS_$(1))) \ 80 $(eval AUX_OUT_NOTICE_FILES := $(AUX_OUT_NOTICE_FILES_$(1))) \ 81 $(eval AUX_OUT_FAKE := $(AUX_OUT_FAKE_$(1))) \ 82 $(eval AUX_OUT_GEN := $(AUX_OUT_GEN_$(1))) \ 83 $(eval AUX_OUT_COMMON_GEN := $(AUX_OUT_COMMON_GEN_$(1))) \ 84 $(eval AUX_OUT_EXECUTABLES := $(AUX_OUT_EXECUTABLES_$(1))) \ 85 $(eval AUX_OUT_UNSTRIPPED := $(AUX_OUT_UNSTRIPPED_$(1))) 86 endef 87 88 # given a variant:path pair, load the variant conviguration with aux-variant-setup-paths from file 89 # this is a build system extension mechainsm, since configuration typically resides in non-build 90 # project space 91 # 92 # $(1) - variant:path pair 93 # $(2) - file suffix 94 # no return value 95 define aux-variant-import-from-pair 96 $(eval _pair := $(subst :, ,$(1))) \ 97 $(eval _name:=$(word 1,$(_pair))) \ 98 $(eval _path:=$(word 2,$(_pair))) \ 99 $(eval include $(_path)/$(_name)$(2)) \ 100 $(eval AUX_OS_VARIANT_LIST_$(AUX_OS_$(1)):=) \ 101 $(call aux-variant-setup-paths,$(_name)) \ 102 $(eval AUX_ALL_VARIANTS += $(_name)) \ 103 $(eval AUX_ALL_OSES := $(filter-out $(AUX_OS_$(_name)),$(AUX_ALL_OSES)) $(AUX_OS_$(_name))) \ 104 $(eval AUX_ALL_CPUS := $(filter-out $(AUX_CPU_$(_name)),$(AUX_ALL_CPUS)) $(AUX_CPU_$(_name))) \ 105 $(eval AUX_ALL_ARCHS := $(filter-out $(AUX_ARCH_$(_name)),$(AUX_ALL_ARCHS)) $(AUX_ARCH_$(_name))) \ 106 $(eval AUX_ALL_SUBARCHS := $(filter-out $(AUX_SUBARCH_$(_name)),$(AUX_ALL_SUBARCHS)) $(AUX_SUBARCH_$(_name))) 107 endef 108 109 # Load system configuration referenced by AUX variant config; 110 # this is a build extension mechanism; typically system config 111 # resides in a non-build projects; 112 # system config may define new rules and globally visible BUILD* 113 # includes to support project-specific build steps and toolchains 114 # MAintains list of valiants that reference this os config in OS "indexed" var 115 # this facilitates multivariant build of the OS (or whataver it is the name of common component these variants share) 116 # 117 # $(1) - variant 118 # no return value 119 define aux-import-os-config 120 $(eval _aioc_os := $(AUX_OS_$(1))) \ 121 $(eval AUX_OS_PATH_$(1) := $(patsubst $(_aioc_os):%,%,$(filter $(_aioc_os):%,$(AUX_ALL_OS_PATHS)))) \ 122 $(eval _aioc_os_cfg := $(AUX_OS_PATH_$(1))/$(_aioc_os)$(os_sfx)) \ 123 $(if $(wildcard $(_aioc_os_cfg)),,$(error AUX '$(_aioc_os)' OS config file [$(notdir $(_aioc_os_cfg))] required by AUX variant '$(1)' does not exist)) \ 124 $(if $(filter $(_aioc_os),$(_os_list)),,$(eval include $(_aioc_os_cfg))) \ 125 $(eval AUX_OS_VARIANT_LIST_$(_aioc_os) += $(1)) \ 126 $(eval _os_list += $(_aioc_os)) 127 endef 128 129 # make sure that AUX config variables are minimally sane; 130 # as a bare minimum they must contain the vars described by aux_env 131 # Generate error if requirement is not met. 132 # 133 #$(1) - variant 134 # no return value 135 define aux-variant-validate 136 $(eval _all:=) \ 137 $(eval _req:=$(addsuffix _$(1),$(aux_env))) \ 138 $(foreach var,$(_req),$(eval _all += $(var))) \ 139 $(eval _missing := $(filter-out $(_all),$(_req))) \ 140 $(if $(_missing),$(error AUX variant $(1) must define vars: $(_missing))) 141 endef 142 143 AUX_ALL_VARIANTS := 144 AUX_ALL_OSES := 145 AUX_ALL_CPUS := 146 AUX_ALL_ARCHS := 147 AUX_ALL_SUBARCHS := 148 149 variant_sfx :=_aux_variant_config.mk 150 os_sfx :=_aux_os_config.mk 151 152 config_roots := $(wildcard device vendor) 153 all_configs := 154 ifdef config_roots 155 all_configs := $(sort $(shell find $(config_roots) -maxdepth 4 -name '*$(variant_sfx)' -o -name '*$(os_sfx)')) 156 endif 157 all_os_configs := $(filter %$(os_sfx),$(all_configs)) 158 all_variant_configs := $(filter %$(variant_sfx),$(all_configs)) 159 160 AUX_ALL_OS_PATHS := $(foreach f,$(all_os_configs),$(patsubst %$(os_sfx),%,$(notdir $(f))):$(patsubst %/,%,$(dir $(f)))) 161 AUX_ALL_OS_VARIANT_PATHS := $(foreach f,$(all_variant_configs),$(patsubst %$(variant_sfx),%,$(notdir $(f))):$(patsubst %/,%,$(dir $(f)))) 162 163 my_variant_pairs := $(foreach v,$(AUX_OS_VARIANT_LIST),$(filter $(v):%,$(AUX_ALL_OS_VARIANT_PATHS))) 164 my_missing_variants := $(foreach v,$(AUX_OS_VARIANT_LIST),$(if $(filter $(v):%,$(AUX_ALL_OS_VARIANT_PATHS)),,$(v))) 165 166 ifneq ($(strip $(my_missing_variants)),) 167 $(error Don't know how to build variant(s): $(my_missing_variants)) 168 endif 169 170 # mandatory variables 171 aux_env := AUX_OS AUX_ARCH AUX_SUBARCH AUX_CPU 172 173 $(foreach v,$(my_variant_pairs),$(if $(filter $(v),$(AUX_ALL_VARIANTS)),,$(call aux-variant-import-from-pair,$(v),$(variant_sfx)))) 174 175 ifdef AUX_ALL_VARIANTS 176 _os_list := 177 $(foreach v,$(AUX_ALL_VARIANTS),\ 178 $(call aux-import-os-config,$(v)) \ 179 $(call aux-variant-validate,$(v)) \ 180 ) 181 endif 182 183 INSTALLED_AUX_TARGETS := 184
