1CFG_LTC_OPTEE_THREAD ?= y 2 3ifeq ($(CFG_ARM64_core),y) 4CFG_KERN_LINKER_FORMAT ?= elf64-littleaarch64 5CFG_KERN_LINKER_ARCH ?= aarch64 6endif 7ifeq ($(CFG_ARM32_core),y) 8CFG_KERN_LINKER_FORMAT ?= elf32-littlearm 9CFG_KERN_LINKER_ARCH ?= arm 10endif 11 12ifeq ($(CFG_TA_FLOAT_SUPPORT),y) 13# Use hard-float for floating point support in user TAs instead of 14# soft-float 15CFG_WITH_VFP ?= y 16ifeq ($(CFG_ARM64_core),y) 17# AArch64 has no fallback to soft-float 18$(call force,CFG_WITH_VFP,y) 19endif 20ifeq ($(CFG_WITH_VFP),y) 21platform-hard-float-enabled := y 22endif 23endif 24 25 26core-platform-cppflags += -I$(arch-dir)/include 27core-platform-subdirs += \ 28 $(addprefix $(arch-dir)/, kernel mm tee sta) $(platform-dir) 29 30ifneq ($(CFG_WITH_ARM_TRUSTED_FW),y) 31core-platform-subdirs += $(arch-dir)/sm 32endif 33 34arm64-platform-cppflags += -DARM64=1 -D__LP64__=1 35arm32-platform-cppflags += -DARM32=1 -D__ILP32__=1 36 37platform-cflags-generic ?= -g -ffunction-sections -fdata-sections -pipe 38platform-aflags-generic ?= -g -pipe 39 40arm32-platform-cflags-no-hard-float ?= -mno-apcs-float -mfloat-abi=soft 41arm32-platform-cflags-hard-float ?= -mfloat-abi=hard -funsafe-math-optimizations 42arm32-platform-cflags-generic ?= -mthumb -mthumb-interwork \ 43 -fno-short-enums -fno-common -mno-unaligned-access 44arm32-platform-aflags-no-hard-float ?= 45 46arm64-platform-cflags-no-hard-float ?= -mgeneral-regs-only 47arm64-platform-cflags-hard-float ?= 48arm64-platform-cflags-generic ?= -mstrict-align 49 50ifeq ($(DEBUG),1) 51platform-cflags-optimization ?= -O0 52else 53platform-cflags-optimization ?= -Os 54endif 55 56platform-cflags-debug-info ?= -g3 57platform-aflags-debug-info ?= 58 59core-platform-cflags += $(platform-cflags-optimization) 60core-platform-cflags += $(platform-cflags-generic) 61core-platform-cflags += $(platform-cflags-debug-info) 62 63core-platform-aflags += $(platform-aflags-generic) 64core-platform-aflags += $(platform-aflags-debug-info) 65 66ifeq ($(CFG_ARM64_core),y) 67arch-bits-core := 64 68core-platform-cppflags += $(arm64-platform-cppflags) 69core-platform-cflags += $(arm64-platform-cflags) 70core-platform-cflags += $(arm64-platform-cflags-generic) 71core-platform-cflags += $(arm64-platform-cflags-no-hard-float) 72core-platform-aflags += $(arm64-platform-aflags) 73else 74arch-bits-core := 32 75core-platform-cppflags += $(arm32-platform-cppflags) 76core-platform-cflags += $(arm32-platform-cflags) 77core-platform-cflags += $(arm32-platform-cflags-no-hard-float) 78ifeq ($(CFG_CORE_UNWIND),y) 79core-platform-cflags += -funwind-tables 80endif 81core-platform-cflags += $(arm32-platform-cflags-generic) 82core-platform-aflags += $(core_arm32-platform-aflags) 83core-platform-aflags += $(arm32-platform-aflags) 84endif 85 86ifneq ($(filter ta_arm32,$(ta-targets)),) 87# Variables for ta-target/sm "ta_arm32" 88CFG_ARM32_ta_arm32 := y 89arch-bits-ta_arm32 := 32 90ta_arm32-platform-cppflags += $(arm32-platform-cppflags) 91ta_arm32-platform-cflags += $(arm32-platform-cflags) 92ta_arm32-platform-cflags += $(platform-cflags-optimization) 93ta_arm32-platform-cflags += $(platform-cflags-debug-info) 94ta_arm32-platform-cflags += -fpie 95ta_arm32-platform-cflags += $(arm32-platform-cflags-generic) 96ifeq ($(platform-hard-float-enabled),y) 97ta_arm32-platform-cflags += $(arm32-platform-cflags-hard-float) 98else 99ta_arm32-platform-cflags += $(arm32-platform-cflags-no-hard-float) 100endif 101ta_arm32-platform-aflags += $(platform-aflags-debug-info) 102ta_arm32-platform-aflags += $(arm32-platform-aflags) 103 104ta-mk-file-export-vars-ta_arm32 += CFG_ARM32_ta_arm32 105ta-mk-file-export-vars-ta_arm32 += ta_arm32-platform-cppflags 106ta-mk-file-export-vars-ta_arm32 += ta_arm32-platform-cflags 107ta-mk-file-export-vars-ta_arm32 += ta_arm32-platform-aflags 108 109ta-mk-file-export-add-ta_arm32 += CROSS_COMPILE32 ?= $$(CROSS_COMPILE)_nl_ 110ta-mk-file-export-add-ta_arm32 += CROSS_COMPILE_ta_arm32 ?= $$(CROSS_COMPILE32)_nl_ 111endif 112 113ifneq ($(filter ta_arm64,$(ta-targets)),) 114# Variables for ta-target/sm "ta_arm64" 115CFG_ARM64_ta_arm64 := y 116arch-bits-ta_arm64 := 64 117ta_arm64-platform-cppflags += $(arm64-platform-cppflags) 118ta_arm64-platform-cflags += $(arm64-platform-cflags) 119ta_arm64-platform-cflags += $(platform-cflags-optimization) 120ta_arm64-platform-cflags += $(platform-cflags-debug-info) 121ta_arm64-platform-cflags += -fpie 122ta_arm64-platform-cflags += $(arm64-platform-cflags-generic) 123ifeq ($(platform-hard-float-enabled),y) 124ta_arm64-platform-cflags += $(arm64-platform-cflags-hard-float) 125else 126ta_arm64-platform-cflags += $(arm64-platform-cflags-no-hard-float) 127endif 128ta_arm64-platform-aflags += $(platform-aflags-debug-info) 129ta_arm64-platform-aflags += $(arm64-platform-aflags) 130 131ta-mk-file-export-vars-ta_arm64 += CFG_ARM64_ta_arm64 132ta-mk-file-export-vars-ta_arm64 += ta_arm64-platform-cppflags 133ta-mk-file-export-vars-ta_arm64 += ta_arm64-platform-cflags 134ta-mk-file-export-vars-ta_arm64 += ta_arm64-platform-aflags 135 136ta-mk-file-export-add-ta_arm64 += CROSS_COMPILE64 ?= $$(CROSS_COMPILE)_nl_ 137ta-mk-file-export-add-ta_arm64 += CROSS_COMPILE_ta_arm64 ?= $$(CROSS_COMPILE64)_nl_ 138endif 139 140# Set cross compiler prefix for each submodule 141$(foreach sm, core $(ta-targets), $(eval CROSS_COMPILE_$(sm) ?= $(CROSS_COMPILE$(arch-bits-$(sm))))) 142