1CFG_LTC_OPTEE_THREAD ?= y 2# Size of emulated TrustZone protected SRAM, 448 kB. 3# Only applicable when paging is enabled. 4CFG_CORE_TZSRAM_EMUL_SIZE ?= 458752 5CFG_LPAE_ADDR_SPACE_SIZE ?= (1ull << 32) 6 7ifeq ($(CFG_ARM64_core),y) 8CFG_KERN_LINKER_FORMAT ?= elf64-littleaarch64 9CFG_KERN_LINKER_ARCH ?= aarch64 10endif 11ifeq ($(CFG_ARM32_core),y) 12CFG_KERN_LINKER_FORMAT ?= elf32-littlearm 13CFG_KERN_LINKER_ARCH ?= arm 14endif 15 16ifeq ($(CFG_TA_FLOAT_SUPPORT),y) 17# Use hard-float for floating point support in user TAs instead of 18# soft-float 19CFG_WITH_VFP ?= y 20ifeq ($(CFG_ARM64_core),y) 21# AArch64 has no fallback to soft-float 22$(call force,CFG_WITH_VFP,y) 23endif 24ifeq ($(CFG_WITH_VFP),y) 25platform-hard-float-enabled := y 26endif 27endif 28 29CFG_CORE_RWDATA_NOEXEC ?= y 30CFG_CORE_RODATA_NOEXEC ?= n 31ifeq ($(CFG_CORE_RODATA_NOEXEC),y) 32$(call force,CFG_CORE_RWDATA_NOEXEC,y) 33endif 34# 'y' to set the Alignment Check Enable bit in SCTLR/SCTLR_EL1, 'n' to clear it 35CFG_SCTLR_ALIGNMENT_CHECK ?= y 36 37ifeq ($(CFG_WITH_PAGER),y) 38ifeq ($(CFG_CORE_SANITIZE_KADDRESS),y) 39$(error Error: CFG_CORE_SANITIZE_KADDRESS not compatible with CFG_WITH_PAGER) 40endif 41endif 42 43ifeq ($(CFG_ARM32_core),y) 44# Configration directive related to ARMv7 optee boot arguments. 45# CFG_PAGEABLE_ADDR: if defined, forces pageable data physical address. 46# CFG_NS_ENTRY_ADDR: if defined, forces NS World physical entry address. 47# CFG_DT_ADDR: if defined, forces Device Tree data physical address. 48endif 49 50core-platform-cppflags += -I$(arch-dir)/include 51core-platform-subdirs += \ 52 $(addprefix $(arch-dir)/, kernel mm tee pta) $(platform-dir) 53 54ifneq ($(CFG_WITH_ARM_TRUSTED_FW),y) 55core-platform-subdirs += $(arch-dir)/sm 56endif 57 58arm64-platform-cppflags += -DARM64=1 -D__LP64__=1 59arm32-platform-cppflags += -DARM32=1 -D__ILP32__=1 60 61platform-cflags-generic ?= -g -ffunction-sections -fdata-sections -pipe 62platform-aflags-generic ?= -g -pipe 63 64arm32-platform-cflags-no-hard-float ?= -mfloat-abi=soft 65arm32-platform-cflags-hard-float ?= -mfloat-abi=hard -funsafe-math-optimizations 66arm32-platform-cflags-generic ?= -mthumb -mthumb-interwork \ 67 -fno-short-enums -fno-common -mno-unaligned-access 68arm32-platform-aflags-no-hard-float ?= 69 70arm64-platform-cflags-no-hard-float ?= -mgeneral-regs-only 71arm64-platform-cflags-hard-float ?= 72arm64-platform-cflags-generic ?= -mstrict-align 73 74ifeq ($(DEBUG),1) 75platform-cflags-optimization ?= -O0 76else 77platform-cflags-optimization ?= -Os 78endif 79 80platform-cflags-debug-info ?= -g3 81platform-aflags-debug-info ?= 82 83core-platform-cflags += $(platform-cflags-optimization) 84core-platform-cflags += $(platform-cflags-generic) 85core-platform-cflags += $(platform-cflags-debug-info) 86 87core-platform-aflags += $(platform-aflags-generic) 88core-platform-aflags += $(platform-aflags-debug-info) 89 90ifeq ($(CFG_ARM64_core),y) 91arch-bits-core := 64 92core-platform-cppflags += $(arm64-platform-cppflags) 93core-platform-cflags += $(arm64-platform-cflags) 94core-platform-cflags += $(arm64-platform-cflags-generic) 95core-platform-cflags += $(arm64-platform-cflags-no-hard-float) 96core-platform-aflags += $(arm64-platform-aflags) 97else 98arch-bits-core := 32 99core-platform-cppflags += $(arm32-platform-cppflags) 100core-platform-cflags += $(arm32-platform-cflags) 101core-platform-cflags += $(arm32-platform-cflags-no-hard-float) 102ifeq ($(CFG_UNWIND),y) 103core-platform-cflags += -funwind-tables 104endif 105core-platform-cflags += $(arm32-platform-cflags-generic) 106core-platform-aflags += $(core_arm32-platform-aflags) 107core-platform-aflags += $(arm32-platform-aflags) 108endif 109 110ifneq ($(filter ta_arm32,$(ta-targets)),) 111# Variables for ta-target/sm "ta_arm32" 112CFG_ARM32_ta_arm32 := y 113arch-bits-ta_arm32 := 32 114ta_arm32-platform-cppflags += $(arm32-platform-cppflags) 115ta_arm32-platform-cflags += $(arm32-platform-cflags) 116ta_arm32-platform-cflags += $(platform-cflags-optimization) 117ta_arm32-platform-cflags += $(platform-cflags-debug-info) 118ta_arm32-platform-cflags += -fpie 119ta_arm32-platform-cflags += $(arm32-platform-cflags-generic) 120ifeq ($(platform-hard-float-enabled),y) 121ta_arm32-platform-cflags += $(arm32-platform-cflags-hard-float) 122else 123ta_arm32-platform-cflags += $(arm32-platform-cflags-no-hard-float) 124endif 125ifeq ($(CFG_UNWIND),y) 126ta_arm32-platform-cflags += -funwind-tables 127endif 128ta_arm32-platform-aflags += $(platform-aflags-debug-info) 129ta_arm32-platform-aflags += $(arm32-platform-aflags) 130 131ta-mk-file-export-vars-ta_arm32 += CFG_ARM32_ta_arm32 132ta-mk-file-export-vars-ta_arm32 += ta_arm32-platform-cppflags 133ta-mk-file-export-vars-ta_arm32 += ta_arm32-platform-cflags 134ta-mk-file-export-vars-ta_arm32 += ta_arm32-platform-aflags 135 136ta-mk-file-export-add-ta_arm32 += CROSS_COMPILE ?= arm-linux-gnueabihf-_nl_ 137ta-mk-file-export-add-ta_arm32 += CROSS_COMPILE32 ?= $$(CROSS_COMPILE)_nl_ 138ta-mk-file-export-add-ta_arm32 += CROSS_COMPILE_ta_arm32 ?= $$(CROSS_COMPILE32)_nl_ 139endif 140 141ifneq ($(filter ta_arm64,$(ta-targets)),) 142# Variables for ta-target/sm "ta_arm64" 143CFG_ARM64_ta_arm64 := y 144arch-bits-ta_arm64 := 64 145ta_arm64-platform-cppflags += $(arm64-platform-cppflags) 146ta_arm64-platform-cflags += $(arm64-platform-cflags) 147ta_arm64-platform-cflags += $(platform-cflags-optimization) 148ta_arm64-platform-cflags += $(platform-cflags-debug-info) 149ta_arm64-platform-cflags += -fpie 150ta_arm64-platform-cflags += $(arm64-platform-cflags-generic) 151ifeq ($(platform-hard-float-enabled),y) 152ta_arm64-platform-cflags += $(arm64-platform-cflags-hard-float) 153else 154ta_arm64-platform-cflags += $(arm64-platform-cflags-no-hard-float) 155endif 156ta_arm64-platform-aflags += $(platform-aflags-debug-info) 157ta_arm64-platform-aflags += $(arm64-platform-aflags) 158 159ta-mk-file-export-vars-ta_arm64 += CFG_ARM64_ta_arm64 160ta-mk-file-export-vars-ta_arm64 += ta_arm64-platform-cppflags 161ta-mk-file-export-vars-ta_arm64 += ta_arm64-platform-cflags 162ta-mk-file-export-vars-ta_arm64 += ta_arm64-platform-aflags 163 164ta-mk-file-export-add-ta_arm64 += CROSS_COMPILE64 ?= $$(CROSS_COMPILE)_nl_ 165ta-mk-file-export-add-ta_arm64 += CROSS_COMPILE_ta_arm64 ?= $$(CROSS_COMPILE64)_nl_ 166endif 167 168# Set cross compiler prefix for each submodule 169$(foreach sm, core $(ta-targets), $(eval CROSS_COMPILE_$(sm) ?= $(CROSS_COMPILE$(arch-bits-$(sm))))) 170