# # Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved. # # SPDX-License-Identifier: BSD-3-Clause # # # Trusted Firmware Version # VERSION_MAJOR := 2 VERSION_MINOR := 3 # Default goal is build all images .DEFAULT_GOAL := all # Avoid any implicit propagation of command line variable definitions to # sub-Makefiles, like CFLAGS that we reserved for the firmware images' # usage. Other command line options like "-s" are still propagated as usual. MAKEOVERRIDES = MAKE_HELPERS_DIRECTORY := make_helpers/ include ${MAKE_HELPERS_DIRECTORY}build_macros.mk include ${MAKE_HELPERS_DIRECTORY}build_env.mk ################################################################################ # Default values for build configurations, and their dependencies ################################################################################ include ${MAKE_HELPERS_DIRECTORY}defaults.mk # Assertions enabled for DEBUG builds by default ENABLE_ASSERTIONS := ${DEBUG} ENABLE_PMF := ${ENABLE_RUNTIME_INSTRUMENTATION} PLAT := ${DEFAULT_PLAT} ################################################################################ # Checkpatch script options ################################################################################ CHECKCODE_ARGS := --no-patch # Do not check the coding style on imported library files or documentation files INC_ARM_DIRS_TO_CHECK := $(sort $(filter-out \ include/drivers/arm/cryptocell, \ $(wildcard include/drivers/arm/*))) INC_ARM_DIRS_TO_CHECK += include/drivers/arm/cryptocell/*.h INC_DRV_DIRS_TO_CHECK := $(sort $(filter-out \ include/drivers/arm, \ $(wildcard include/drivers/*))) INC_LIB_DIRS_TO_CHECK := $(sort $(filter-out \ include/lib/libfdt \ include/lib/libc, \ $(wildcard include/lib/*))) INC_DIRS_TO_CHECK := $(sort $(filter-out \ include/lib \ include/drivers, \ $(wildcard include/*))) LIB_DIRS_TO_CHECK := $(sort $(filter-out \ lib/compiler-rt \ lib/libfdt% \ lib/libc, \ $(wildcard lib/*))) ROOT_DIRS_TO_CHECK := $(sort $(filter-out \ lib \ include \ docs \ %.rst, \ $(wildcard *))) CHECK_PATHS := ${ROOT_DIRS_TO_CHECK} \ ${INC_DIRS_TO_CHECK} \ ${INC_LIB_DIRS_TO_CHECK} \ ${LIB_DIRS_TO_CHECK} \ ${INC_DRV_DIRS_TO_CHECK} \ ${INC_ARM_DIRS_TO_CHECK} ################################################################################ # Process build options ################################################################################ # Verbose flag ifeq (${V},0) Q:=@ ECHO:=@echo CHECKCODE_ARGS += --no-summary --terse else Q:= ECHO:=$(ECHO_QUIET) endif ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),) Q:=@ ECHO:=$(ECHO_QUIET) endif export Q ECHO # The cert_create tool cannot generate certificates individually, so we use the # target 'certificates' to create them all ifneq (${GENERATE_COT},0) FIP_DEPS += certificates FWU_FIP_DEPS += fwu_certificates endif # Process BRANCH_PROTECTION value and set # Pointer Authentication and Branch Target Identification flags ifeq (${BRANCH_PROTECTION},0) # Default value turns off all types of branch protection BP_OPTION := none else ifneq (${ARCH},aarch64) $(error BRANCH_PROTECTION requires AArch64) else ifeq (${BRANCH_PROTECTION},1) # Enables all types of branch protection features BP_OPTION := standard ENABLE_BTI := 1 ENABLE_PAUTH := 1 else ifeq (${BRANCH_PROTECTION},2) # Return address signing to its standard level BP_OPTION := pac-ret ENABLE_PAUTH := 1 else ifeq (${BRANCH_PROTECTION},3) # Extend the signing to include leaf functions BP_OPTION := pac-ret+leaf ENABLE_PAUTH := 1 else ifeq (${BRANCH_PROTECTION},4) # Turn on branch target identification mechanism BP_OPTION := bti ENABLE_BTI := 1 else $(error Unknown BRANCH_PROTECTION value ${BRANCH_PROTECTION}) endif # USE_SPINLOCK_CAS requires AArch64 build ifeq (${USE_SPINLOCK_CAS},1) ifneq (${ARCH},aarch64) $(error USE_SPINLOCK_CAS requires AArch64) else $(info USE_SPINLOCK_CAS is an experimental feature) endif endif # USE_DEBUGFS experimental feature recommended only in debug builds ifeq (${USE_DEBUGFS},1) ifeq (${DEBUG},1) $(warning DEBUGFS experimental feature is enabled.) else $(warning DEBUGFS experimental, recommended in DEBUG builds ONLY) endif endif ifneq (${DECRYPTION_SUPPORT},none) ENC_ARGS += -f ${FW_ENC_STATUS} ENC_ARGS += -k ${ENC_KEY} ENC_ARGS += -n ${ENC_NONCE} FIP_DEPS += enctool FWU_FIP_DEPS += enctool endif ################################################################################ # Toolchain ################################################################################ HOSTCC := gcc export HOSTCC CC := ${CROSS_COMPILE}gcc CPP := ${CROSS_COMPILE}cpp AS := ${CROSS_COMPILE}gcc AR := ${CROSS_COMPILE}ar LINKER := ${CROSS_COMPILE}ld OC := ${CROSS_COMPILE}objcopy OD := ${CROSS_COMPILE}objdump NM := ${CROSS_COMPILE}nm PP := ${CROSS_COMPILE}gcc -E DTC := dtc # Use ${LD}.bfd instead if it exists (as absolute path or together with $PATH). ifneq ($(strip $(wildcard ${LD}.bfd) \ $(foreach dir,$(subst :, ,${PATH}),$(wildcard ${dir}/${LINKER}.bfd))),) LINKER := ${LINKER}.bfd endif ifeq (${ARM_ARCH_MAJOR},7) target32-directive = -target arm-none-eabi # Will set march32-directive from platform configuration else target32-directive = -target armv8a-none-eabi # Set the compiler's target architecture profile based on ARM_ARCH_MINOR option ifeq (${ARM_ARCH_MINOR},0) march32-directive = -march=armv8-a march64-directive = -march=armv8-a else march32-directive = -march=armv8.${ARM_ARCH_MINOR}-a march64-directive = -march=armv8.${ARM_ARCH_MINOR}-a endif endif # Memory tagging is supported in architecture Armv8.5-A AArch64 and onwards ifeq ($(ARCH), aarch64) # Check if revision is greater than or equal to 8.5 ifeq "8.5" "$(word 1, $(sort 8.5 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))" mem_tag_arch_support = yes endif endif # Enabled required option for memory stack tagging. Currently, these options are # enabled only for clang and armclang compiler. ifeq (${SUPPORT_STACK_MEMTAG},yes) ifdef mem_tag_arch_support ifneq ( ,$(filter $(notdir $(CC)),armclang clang)) march64-directive = -march=armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a+memtag ifeq ($(notdir $(CC)),armclang) TF_CFLAGS += -mmemtag-stack else ifeq ($(notdir $(CC)),clang) TF_CFLAGS += -fsanitize=memtag endif endif else $(error "Error: stack memory tagging is not supported for architecture \ ${ARCH},armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a") endif endif ifneq ($(findstring armclang,$(notdir $(CC))),) TF_CFLAGS_aarch32 = -target arm-arm-none-eabi $(march32-directive) TF_CFLAGS_aarch64 = -target aarch64-arm-none-eabi $(march64-directive) LD = $(LINKER) AS = $(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH)) CPP = $(CC) -E $(TF_CFLAGS_$(ARCH)) PP = $(CC) -E $(TF_CFLAGS_$(ARCH)) else ifneq ($(findstring clang,$(notdir $(CC))),) CLANG_CCDIR = $(if $(filter-out ./,$(dir $(CC))),$(dir $(CC)),) TF_CFLAGS_aarch32 = $(target32-directive) $(march32-directive) TF_CFLAGS_aarch64 = -target aarch64-elf $(march64-directive) LD = $(CLANG_CCDIR)ld.lld ifeq (, $(shell which $(LD))) $(error "No $(LD) in PATH, make sure it is installed or set LD to a different linker") endif AS = $(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH)) CPP = $(CC) -E PP = $(CC) -E else ifneq ($(findstring gcc,$(notdir $(CC))),) TF_CFLAGS_aarch32 = $(march32-directive) TF_CFLAGS_aarch64 = $(march64-directive) ifeq ($(ENABLE_LTO),1) # Enable LTO only for aarch64 ifeq (${ARCH},aarch64) LTO_CFLAGS = -flto # Use gcc as a wrapper for the ld, recommended for LTO LINKER := ${CROSS_COMPILE}gcc endif endif LD = $(LINKER) else TF_CFLAGS_aarch32 = $(march32-directive) TF_CFLAGS_aarch64 = $(march64-directive) LD = $(LINKER) endif # Process Debug flag $(eval $(call add_define,DEBUG)) ifneq (${DEBUG}, 0) BUILD_TYPE := debug TF_CFLAGS += -g ifneq ($(findstring clang,$(notdir $(CC))),) ASFLAGS += -g else ASFLAGS += -g -Wa,--gdwarf-2 endif # Use LOG_LEVEL_INFO by default for debug builds LOG_LEVEL := 40 else BUILD_TYPE := release # Use LOG_LEVEL_NOTICE by default for release builds LOG_LEVEL := 20 endif # Default build string (git branch and commit) ifeq (${BUILD_STRING},) BUILD_STRING := $(shell git describe --always --dirty --tags 2> /dev/null) endif VERSION_STRING := v${VERSION_MAJOR}.${VERSION_MINOR}(${BUILD_TYPE}):${BUILD_STRING} ifeq (${AARCH32_INSTRUCTION_SET},A32) TF_CFLAGS_aarch32 += -marm else ifeq (${AARCH32_INSTRUCTION_SET},T32) TF_CFLAGS_aarch32 += -mthumb else $(error Error: Unknown AArch32 instruction set ${AARCH32_INSTRUCTION_SET}) endif TF_CFLAGS_aarch32 += -mno-unaligned-access TF_CFLAGS_aarch64 += -mgeneral-regs-only -mstrict-align ifneq (${BP_OPTION},none) TF_CFLAGS_aarch64 += -mbranch-protection=${BP_OPTION} endif ASFLAGS_aarch32 = $(march32-directive) ASFLAGS_aarch64 = $(march64-directive) # General warnings WARNINGS := -Wall -Wmissing-include-dirs -Wunused \ -Wdisabled-optimization -Wvla -Wshadow \ -Wno-unused-parameter -Wredundant-decls # Additional warnings # Level 1 WARNING1 := -Wextra WARNING1 += -Wmissing-format-attribute WARNING1 += -Wmissing-prototypes WARNING1 += -Wold-style-definition # Level 2 WARNING2 := -Waggregate-return WARNING2 += -Wcast-align WARNING2 += -Wnested-externs WARNING3 := -Wbad-function-cast WARNING3 += -Wcast-qual WARNING3 += -Wconversion WARNING3 += -Wpacked WARNING3 += -Wpointer-arith WARNING3 += -Wswitch-default ifeq (${W},1) WARNINGS += $(WARNING1) else ifeq (${W},2) WARNINGS += $(WARNING1) $(WARNING2) else ifeq (${W},3) WARNINGS += $(WARNING1) $(WARNING2) $(WARNING3) endif # Compiler specific warnings ifeq ($(findstring clang,$(notdir $(CC))),) # not using clang WARNINGS += -Wunused-but-set-variable -Wmaybe-uninitialized \ -Wpacked-bitfield-compat -Wshift-overflow=2 \ -Wlogical-op else # using clang WARNINGS += -Wshift-overflow -Wshift-sign-overflow \ -Wlogical-op-parentheses endif ifneq (${E},0) ERRORS := -Werror endif CPPFLAGS = ${DEFINES} ${INCLUDES} ${MBEDTLS_INC} -nostdinc \ $(ERRORS) $(WARNINGS) ASFLAGS += $(CPPFLAGS) $(ASFLAGS_$(ARCH)) \ -ffreestanding -Wa,--fatal-warnings TF_CFLAGS += $(CPPFLAGS) $(TF_CFLAGS_$(ARCH)) \ -ffunction-sections -fdata-sections \ -ffreestanding -fno-builtin -fno-common \ -Os -std=gnu99 ifeq (${SANITIZE_UB},on) TF_CFLAGS += -fsanitize=undefined -fno-sanitize-recover endif ifeq (${SANITIZE_UB},trap) TF_CFLAGS += -fsanitize=undefined -fno-sanitize-recover \ -fsanitize-undefined-trap-on-error endif GCC_V_OUTPUT := $(shell $(CC) -v 2>&1) # LD = armlink ifneq ($(findstring armlink,$(notdir $(LD))),) TF_LDFLAGS += --diag_error=warning --lto_level=O1 TF_LDFLAGS += --remove --info=unused,unusedsymbols TF_LDFLAGS += $(TF_LDFLAGS_$(ARCH)) # LD = gcc (used when GCC LTO is enabled) else ifneq ($(findstring gcc,$(notdir $(LD))),) # Pass ld options with Wl or Xlinker switches TF_LDFLAGS += -Wl,--fatal-warnings -O1 TF_LDFLAGS += -Wl,--gc-sections ifeq ($(ENABLE_LTO),1) ifeq (${ARCH},aarch64) TF_LDFLAGS += -flto -fuse-linker-plugin endif endif # GCC automatically adds fix-cortex-a53-843419 flag when used to link # which breaks some builds, so disable if errata fix is not explicitly enabled ifneq (${ERRATA_A53_843419},1) TF_LDFLAGS += -mno-fix-cortex-a53-843419 endif TF_LDFLAGS += -nostdlib TF_LDFLAGS += $(subst --,-Xlinker --,$(TF_LDFLAGS_$(ARCH))) # LD = gcc-ld (ld) or llvm-ld (ld.lld) or other else TF_LDFLAGS += --fatal-warnings -O1 TF_LDFLAGS += --gc-sections # ld.lld doesn't recognize the errata flags, # therefore don't add those in that case ifeq ($(findstring ld.lld,$(notdir $(LD))),) TF_LDFLAGS += $(TF_LDFLAGS_$(ARCH)) endif endif DTC_FLAGS += -I dts -O dtb DTC_CPPFLAGS += -P -nostdinc -Iinclude -Ifdts -undef \ -x assembler-with-cpp $(DEFINES) ifeq ($(MEASURED_BOOT),1) DTC_CPPFLAGS += -DMEASURED_BOOT -DBL2_HASH_SIZE=${TCG_DIGEST_SIZE} endif ################################################################################ # Common sources and include directories ################################################################################ include lib/compiler-rt/compiler-rt.mk BL_COMMON_SOURCES += common/bl_common.c \ common/tf_log.c \ common/${ARCH}/debug.S \ drivers/console/multi_console.c \ lib/${ARCH}/cache_helpers.S \ lib/${ARCH}/misc_helpers.S \ plat/common/plat_bl_common.c \ plat/common/plat_log_common.c \ plat/common/${ARCH}/plat_common.c \ plat/common/${ARCH}/platform_helpers.S \ ${COMPILER_RT_SRCS} ifeq ($(notdir $(CC)),armclang) BL_COMMON_SOURCES += lib/${ARCH}/armclang_printf.S endif ifeq (${SANITIZE_UB},on) BL_COMMON_SOURCES += plat/common/ubsan.c endif INCLUDES += -Iinclude \ -Iinclude/arch/${ARCH} \ -Iinclude/lib/cpus/${ARCH} \ -Iinclude/lib/el3_runtime/${ARCH} \ ${PLAT_INCLUDES} \ ${SPD_INCLUDES} include common/backtrace/backtrace.mk ################################################################################ # Generic definitions ################################################################################ include ${MAKE_HELPERS_DIRECTORY}plat_helpers.mk ifeq (${BUILD_BASE},) BUILD_BASE := ./build endif BUILD_PLAT := $(abspath ${BUILD_BASE})/${PLAT}/${BUILD_TYPE} SPDS := $(sort $(filter-out none, $(patsubst services/spd/%,%,$(wildcard services/spd/*)))) # Platforms providing their own TBB makefile may override this value INCLUDE_TBBR_MK := 1 ################################################################################ # Include SPD Makefile if one has been specified ################################################################################ ifneq (${SPD},none) ifeq (${ARCH},aarch32) $(error "Error: SPD is incompatible with AArch32.") endif ifdef EL3_PAYLOAD_BASE $(warning "SPD and EL3_PAYLOAD_BASE are incompatible build options.") $(warning "The SPD and its BL32 companion will be present but ignored.") endif ifeq (${SPD},spmd) $(warning "SPMD is an experimental feature") # SPMD is located in std_svc directory SPD_DIR := std_svc ifeq ($(SPMD_SPM_AT_SEL2),1) ifeq ($(CTX_INCLUDE_EL2_REGS),0) $(error SPMD with SPM at S-EL2 requires CTX_INCLUDE_EL2_REGS option) endif endif ifeq ($(findstring optee_sp,$(ARM_SPMC_MANIFEST_DTS)),optee_sp) DTC_CPPFLAGS += -DOPTEE_SP_FW_CONFIG endif else # All other SPDs in spd directory SPD_DIR := spd endif # We expect to locate an spd.mk under the specified SPD directory SPD_MAKE := $(wildcard services/${SPD_DIR}/${SPD}/${SPD}.mk) ifeq (${SPD_MAKE},) $(error Error: No services/${SPD_DIR}/${SPD}/${SPD}.mk located) endif $(info Including ${SPD_MAKE}) include ${SPD_MAKE} # If there's BL32 companion for the chosen SPD, we expect that the SPD's # Makefile would set NEED_BL32 to "yes". In this case, the build system # supports two mutually exclusive options: # * BL32 is built from source: then BL32_SOURCES must contain the list # of source files to build BL32 # * BL32 is a prebuilt binary: then BL32 must point to the image file # that will be included in the FIP # If both BL32_SOURCES and BL32 are defined, the binary takes precedence # over the sources. endif ################################################################################ # Include the platform specific Makefile after the SPD Makefile (the platform # makefile may use all previous definitions in this file) ################################################################################ include ${PLAT_MAKEFILE_FULL} $(eval $(call MAKE_PREREQ_DIR,${BUILD_PLAT})) ifeq (${ARM_ARCH_MAJOR},7) include make_helpers/armv7-a-cpus.mk endif PIE_FOUND := $(findstring --enable-default-pie,${GCC_V_OUTPUT}) ifneq ($(PIE_FOUND),) TF_CFLAGS += -fno-PIE endif ifneq ($(findstring gcc,$(notdir $(LD))),) PIE_LDFLAGS += -Wl,-pie -Wl,--no-dynamic-linker else PIE_LDFLAGS += -pie --no-dynamic-linker endif ifeq ($(ENABLE_PIE),1) ifeq ($(BL2_AT_EL3),1) ifneq ($(BL2_IN_XIP_MEM),1) BL2_CFLAGS += -fpie BL2_LDFLAGS += $(PIE_LDFLAGS) endif endif BL31_CFLAGS += -fpie BL31_LDFLAGS += $(PIE_LDFLAGS) ifeq ($(ARCH),aarch64) BL32_CFLAGS += -fpie BL32_LDFLAGS += $(PIE_LDFLAGS) endif endif ifeq (${ARCH},aarch64) BL1_CPPFLAGS += -DIMAGE_AT_EL3 ifeq ($(BL2_AT_EL3),1) BL2_CPPFLAGS += -DIMAGE_AT_EL3 else BL2_CPPFLAGS += -DIMAGE_AT_EL1 endif BL2U_CPPFLAGS += -DIMAGE_AT_EL1 BL31_CPPFLAGS += -DIMAGE_AT_EL3 BL32_CPPFLAGS += -DIMAGE_AT_EL1 endif # Include the CPU specific operations makefile, which provides default # values for all CPU errata workarounds and CPU specific optimisations. # This can be overridden by the platform. include lib/cpus/cpu-ops.mk ifeq (${ARCH},aarch32) NEED_BL32 := yes ################################################################################ # Build `AARCH32_SP` as BL32 image for AArch32 ################################################################################ ifneq (${AARCH32_SP},none) # We expect to locate an sp.mk under the specified AARCH32_SP directory AARCH32_SP_MAKE := $(wildcard bl32/${AARCH32_SP}/${AARCH32_SP}.mk) ifeq (${AARCH32_SP_MAKE},) $(error Error: No bl32/${AARCH32_SP}/${AARCH32_SP}.mk located) endif $(info Including ${AARCH32_SP_MAKE}) include ${AARCH32_SP_MAKE} endif endif ################################################################################ # Include libc if not overridden ################################################################################ ifeq (${OVERRIDE_LIBC},0) include lib/libc/libc.mk endif ################################################################################ # Check incompatible options ################################################################################ ifdef EL3_PAYLOAD_BASE ifdef PRELOADED_BL33_BASE $(warning "PRELOADED_BL33_BASE and EL3_PAYLOAD_BASE are \ incompatible build options. EL3_PAYLOAD_BASE has priority.") endif ifneq (${GENERATE_COT},0) $(error "GENERATE_COT and EL3_PAYLOAD_BASE are incompatible build options.") endif ifneq (${TRUSTED_BOARD_BOOT},0) $(error "TRUSTED_BOARD_BOOT and EL3_PAYLOAD_BASE are incompatible build options.") endif endif ifeq (${NEED_BL33},yes) ifdef EL3_PAYLOAD_BASE $(warning "BL33 image is not needed when option \ BL33_PAYLOAD_BASE is used and won't be added to the FIP file.") endif ifdef PRELOADED_BL33_BASE $(warning "BL33 image is not needed when option \ PRELOADED_BL33_BASE is used and won't be added to the FIP \ file.") endif endif # When building for systems with hardware-assisted coherency, there's no need to # use USE_COHERENT_MEM. Require that USE_COHERENT_MEM must be set to 0 too. ifeq ($(HW_ASSISTED_COHERENCY)-$(USE_COHERENT_MEM),1-1) $(error USE_COHERENT_MEM cannot be enabled with HW_ASSISTED_COHERENCY) endif #For now, BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is 1. ifeq ($(BL2_AT_EL3)-$(BL2_IN_XIP_MEM),0-1) $(error "BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is enabled") endif # For RAS_EXTENSION, require that EAs are handled in EL3 first ifeq ($(RAS_EXTENSION),1) ifneq ($(HANDLE_EA_EL3_FIRST),1) $(error For RAS_EXTENSION, HANDLE_EA_EL3_FIRST must also be 1) endif endif # When FAULT_INJECTION_SUPPORT is used, require that RAS_EXTENSION is enabled ifeq ($(FAULT_INJECTION_SUPPORT),1) ifneq ($(RAS_EXTENSION),1) $(error For FAULT_INJECTION_SUPPORT, RAS_EXTENSION must also be 1) endif endif # DYN_DISABLE_AUTH can be set only when TRUSTED_BOARD_BOOT=1 ifeq ($(DYN_DISABLE_AUTH), 1) ifeq (${TRUSTED_BOARD_BOOT}, 0) $(error "TRUSTED_BOARD_BOOT must be enabled for DYN_DISABLE_AUTH to be set.") endif endif # SDEI_IN_FCONF is only supported when SDEI_SUPPORT is enabled. ifeq ($(SDEI_SUPPORT)-$(SDEI_IN_FCONF),0-1) $(error "SDEI_IN_FCONF is an experimental feature and is only supported when \ SDEI_SUPPORT is enabled") endif ifeq ($(COT_DESC_IN_DTB),1) $(info CoT in device tree is an experimental feature) endif # If pointer authentication is used in the firmware, make sure that all the # registers associated to it are also saved and restored. # Not doing it would leak the value of the keys used by EL3 to EL1 and S-EL1. ifeq ($(ENABLE_PAUTH),1) ifeq ($(CTX_INCLUDE_PAUTH_REGS),0) $(error Pointer Authentication requires CTX_INCLUDE_PAUTH_REGS=1) endif endif ifeq ($(CTX_INCLUDE_PAUTH_REGS),1) ifneq (${ARCH},aarch64) $(error CTX_INCLUDE_PAUTH_REGS requires AArch64) else $(info CTX_INCLUDE_PAUTH_REGS is an experimental feature) endif endif ifeq ($(ENABLE_PAUTH),1) $(info Pointer Authentication is an experimental feature) endif ifeq ($(ENABLE_BTI),1) $(info Branch Protection is an experimental feature) endif ifeq ($(CTX_INCLUDE_MTE_REGS),1) ifneq (${ARCH},aarch64) $(error CTX_INCLUDE_MTE_REGS requires AArch64) else $(info CTX_INCLUDE_MTE_REGS is an experimental feature) endif endif ifeq ($(MEASURED_BOOT),1) ifneq (${TRUSTED_BOARD_BOOT},1) $(error MEASURED_BOOT requires TRUSTED_BOARD_BOOT=1) else $(info MEASURED_BOOT is an experimental feature) endif endif ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1) ifeq (${ALLOW_RO_XLAT_TABLES}, 1) $(error "ALLOW_RO_XLAT_TABLES requires translation tables library v2") endif endif ifneq (${DECRYPTION_SUPPORT},none) ifeq (${TRUSTED_BOARD_BOOT}, 0) $(error TRUSTED_BOARD_BOOT must be enabled for DECRYPTION_SUPPORT to be set) else $(info DECRYPTION_SUPPORT is an experimental feature) endif endif ################################################################################ # Process platform overrideable behaviour ################################################################################ # Using BL2 implies that a BL33 image also needs to be supplied for the FIP and # Certificate generation tools. This flag can be overridden by the platform. ifdef BL2_SOURCES ifdef EL3_PAYLOAD_BASE # If booting an EL3 payload there is no need for a BL33 image # in the FIP file. NEED_BL33 := no else ifdef PRELOADED_BL33_BASE # If booting a BL33 preloaded image there is no need of # another one in the FIP file. NEED_BL33 := no else NEED_BL33 ?= yes endif endif endif # If SCP_BL2 is given, we always want FIP to include it. ifdef SCP_BL2 NEED_SCP_BL2 := yes endif # For AArch32, BL31 is not currently supported. ifneq (${ARCH},aarch32) ifdef BL31_SOURCES # When booting an EL3 payload, there is no need to compile the BL31 image nor # put it in the FIP. ifndef EL3_PAYLOAD_BASE NEED_BL31 := yes endif endif endif # Process TBB related flags ifneq (${GENERATE_COT},0) # Common cert_create options ifneq (${CREATE_KEYS},0) $(eval CRT_ARGS += -n) $(eval FWU_CRT_ARGS += -n) ifneq (${SAVE_KEYS},0) $(eval CRT_ARGS += -k) $(eval FWU_CRT_ARGS += -k) endif endif # Include TBBR makefile (unless the platform indicates otherwise) ifeq (${INCLUDE_TBBR_MK},1) include make_helpers/tbbr/tbbr_tools.mk endif endif ifneq (${FIP_ALIGN},0) FIP_ARGS += --align ${FIP_ALIGN} endif ################################################################################ # Include libraries' Makefile that are used in all BL ################################################################################ include lib/stack_protector/stack_protector.mk ################################################################################ # Auxiliary tools (fiptool, cert_create, etc) ################################################################################ # Variables for use with Certificate Generation Tool CRTTOOLPATH ?= tools/cert_create CRTTOOL ?= ${CRTTOOLPATH}/cert_create${BIN_EXT} # Variables for use with Firmware Encryption Tool ENCTOOLPATH ?= tools/encrypt_fw ENCTOOL ?= ${ENCTOOLPATH}/encrypt_fw${BIN_EXT} # Variables for use with Firmware Image Package FIPTOOLPATH ?= tools/fiptool FIPTOOL ?= ${FIPTOOLPATH}/fiptool${BIN_EXT} # Variables for use with sptool SPTOOLPATH ?= tools/sptool SPTOOL ?= ${SPTOOLPATH}/sptool${BIN_EXT} SP_MK_GEN ?= ${SPTOOLPATH}/sp_mk_generator.py # Variables for use with ROMLIB ROMLIBPATH ?= lib/romlib # Variable for use with Python PYTHON ?= python3 # Variables for use with PRINT_MEMORY_MAP PRINT_MEMORY_MAP_PATH ?= tools/memory PRINT_MEMORY_MAP ?= ${PRINT_MEMORY_MAP_PATH}/print_memory_map.py # Variables for use with documentation build using Sphinx tool DOCS_PATH ?= docs ################################################################################ # Include BL specific makefiles ################################################################################ ifdef BL1_SOURCES NEED_BL1 := yes include bl1/bl1.mk endif ifdef BL2_SOURCES NEED_BL2 := yes include bl2/bl2.mk endif ifdef BL2U_SOURCES NEED_BL2U := yes include bl2u/bl2u.mk endif ifeq (${NEED_BL31},yes) ifdef BL31_SOURCES include bl31/bl31.mk endif endif ifdef FDT_SOURCES NEED_FDT := yes endif ################################################################################ # Build options checks ################################################################################ $(eval $(call assert_booleans,\ $(sort \ ALLOW_RO_XLAT_TABLES \ COLD_BOOT_SINGLE_CPU \ CREATE_KEYS \ CTX_INCLUDE_AARCH32_REGS \ CTX_INCLUDE_FPREGS \ CTX_INCLUDE_PAUTH_REGS \ CTX_INCLUDE_MTE_REGS \ CTX_INCLUDE_EL2_REGS \ DEBUG \ DYN_DISABLE_AUTH \ EL3_EXCEPTION_HANDLING \ ENABLE_AMU \ ENABLE_ASSERTIONS \ ENABLE_MPAM_FOR_LOWER_ELS \ ENABLE_PIE \ ENABLE_PMF \ ENABLE_PSCI_STAT \ ENABLE_RUNTIME_INSTRUMENTATION \ ENABLE_SPE_FOR_LOWER_ELS \ ENABLE_SVE_FOR_NS \ ERROR_DEPRECATED \ FAULT_INJECTION_SUPPORT \ GENERATE_COT \ GICV2_G0_FOR_EL3 \ HANDLE_EA_EL3_FIRST \ HW_ASSISTED_COHERENCY \ INVERTED_MEMMAP \ MEASURED_BOOT \ NS_TIMER_SWITCH \ OVERRIDE_LIBC \ PL011_GENERIC_UART \ PROGRAMMABLE_RESET_ADDRESS \ PSCI_EXTENDED_STATE_ID \ RAS_EXTENSION \ RESET_TO_BL31 \ SAVE_KEYS \ SEPARATE_CODE_AND_RODATA \ SEPARATE_NOBITS_REGION \ SPIN_ON_BL1_EXIT \ SPM_MM \ SPMD_SPM_AT_SEL2 \ TRUSTED_BOARD_BOOT \ USE_COHERENT_MEM \ USE_DEBUGFS \ ARM_IO_IN_DTB \ SDEI_IN_FCONF \ SEC_INT_DESC_IN_FCONF \ USE_ROMLIB \ USE_TBBR_DEFS \ WARMBOOT_ENABLE_DCACHE_EARLY \ BL2_AT_EL3 \ BL2_IN_XIP_MEM \ BL2_INV_DCACHE \ USE_SPINLOCK_CAS \ ENCRYPT_BL31 \ ENCRYPT_BL32 \ ERRATA_SPECULATIVE_AT \ RAS_TRAP_LOWER_EL_ERR_ACCESS \ COT_DESC_IN_DTB \ USE_SP804_TIMER \ ))) $(eval $(call assert_numerics,\ $(sort \ ARM_ARCH_MAJOR \ ARM_ARCH_MINOR \ BRANCH_PROTECTION \ FW_ENC_STATUS \ ))) ifdef KEY_SIZE $(eval $(call assert_numeric,KEY_SIZE)) endif ifeq ($(filter $(SANITIZE_UB), on off trap),) $(error "Invalid value for SANITIZE_UB: can be one of on, off, trap") endif ################################################################################ # Add definitions to the cpp preprocessor based on the current build options. # This is done after including the platform specific makefile to allow the # platform to overwrite the default options ################################################################################ $(eval $(call add_defines,\ $(sort \ ALLOW_RO_XLAT_TABLES \ ARM_ARCH_MAJOR \ ARM_ARCH_MINOR \ COLD_BOOT_SINGLE_CPU \ CTX_INCLUDE_AARCH32_REGS \ CTX_INCLUDE_FPREGS \ CTX_INCLUDE_PAUTH_REGS \ EL3_EXCEPTION_HANDLING \ CTX_INCLUDE_MTE_REGS \ CTX_INCLUDE_EL2_REGS \ DECRYPTION_SUPPORT_${DECRYPTION_SUPPORT} \ ENABLE_AMU \ ENABLE_ASSERTIONS \ ENABLE_BTI \ ENABLE_MPAM_FOR_LOWER_ELS \ ENABLE_PAUTH \ ENABLE_PIE \ ENABLE_PMF \ ENABLE_PSCI_STAT \ ENABLE_RUNTIME_INSTRUMENTATION \ ENABLE_SPE_FOR_LOWER_ELS \ ENABLE_SVE_FOR_NS \ ENCRYPT_BL31 \ ENCRYPT_BL32 \ ERROR_DEPRECATED \ FAULT_INJECTION_SUPPORT \ GICV2_G0_FOR_EL3 \ HANDLE_EA_EL3_FIRST \ HW_ASSISTED_COHERENCY \ LOG_LEVEL \ MEASURED_BOOT \ NS_TIMER_SWITCH \ PL011_GENERIC_UART \ PLAT_${PLAT} \ PROGRAMMABLE_RESET_ADDRESS \ PSCI_EXTENDED_STATE_ID \ RAS_EXTENSION \ RESET_TO_BL31 \ SEPARATE_CODE_AND_RODATA \ SEPARATE_NOBITS_REGION \ RECLAIM_INIT_CODE \ SPD_${SPD} \ SPIN_ON_BL1_EXIT \ SPM_MM \ SPMD_SPM_AT_SEL2 \ TRUSTED_BOARD_BOOT \ USE_COHERENT_MEM \ USE_DEBUGFS \ ARM_IO_IN_DTB \ SDEI_IN_FCONF \ SEC_INT_DESC_IN_FCONF \ USE_ROMLIB \ USE_TBBR_DEFS \ WARMBOOT_ENABLE_DCACHE_EARLY \ BL2_AT_EL3 \ BL2_IN_XIP_MEM \ BL2_INV_DCACHE \ USE_SPINLOCK_CAS \ ERRATA_SPECULATIVE_AT \ RAS_TRAP_LOWER_EL_ERR_ACCESS \ COT_DESC_IN_DTB \ USE_SP804_TIMER \ ))) ifeq (${SANITIZE_UB},trap) $(eval $(call add_define,MONITOR_TRAPS)) endif # Define the EL3_PAYLOAD_BASE flag only if it is provided. ifdef EL3_PAYLOAD_BASE $(eval $(call add_define,EL3_PAYLOAD_BASE)) else # Define the PRELOADED_BL33_BASE flag only if it is provided and # EL3_PAYLOAD_BASE is not defined, as it has priority. ifdef PRELOADED_BL33_BASE $(eval $(call add_define,PRELOADED_BL33_BASE)) endif endif # Define the DYN_DISABLE_AUTH flag only if set. ifeq (${DYN_DISABLE_AUTH},1) $(eval $(call add_define,DYN_DISABLE_AUTH)) endif ifneq ($(findstring armlink,$(notdir $(LD))),) $(eval $(call add_define,USE_ARM_LINK)) endif # Generate and include sp_gen.mk if SPD is spmd and SP_LAYOUT_FILE is defined ifeq (${SPD},spmd) ifdef SP_LAYOUT_FILE ifeq (${SPMD_SPM_AT_SEL2},0) $(error "SPMD with SPM at S-EL1 does not require SP_LAYOUT_FILE") endif -include $(BUILD_PLAT)/sp_gen.mk FIP_DEPS += sp CRT_DEPS += sp NEED_SP_PKG := yes else ifeq (${SPMD_SPM_AT_SEL2},1) $(error "SPMD with SPM at S-EL2 require SP_LAYOUT_FILE") endif endif endif ################################################################################ # Build targets ################################################################################ .PHONY: all msg_start clean realclean distclean cscope locate-checkpatch checkcodebase checkpatch fiptool sptool fip sp fwu_fip certtool dtbs memmap doc enctool .SUFFIXES: all: msg_start msg_start: @echo "Building ${PLAT}" ifeq (${ERROR_DEPRECATED},0) # Check if deprecated declarations and cpp warnings should be treated as error or not. ifneq ($(findstring clang,$(notdir $(CC))),) CPPFLAGS += -Wno-error=deprecated-declarations else CPPFLAGS += -Wno-error=deprecated-declarations -Wno-error=cpp endif endif # !ERROR_DEPRECATED $(eval $(call MAKE_LIB_DIRS)) $(eval $(call MAKE_LIB,c)) # Expand build macros for the different images ifeq (${NEED_BL1},yes) $(eval $(call MAKE_BL,1)) endif ifeq (${NEED_BL2},yes) ifeq (${BL2_AT_EL3}, 0) FIP_BL2_ARGS := tb-fw endif $(if ${BL2}, $(eval $(call TOOL_ADD_IMG,bl2,--${FIP_BL2_ARGS})),\ $(eval $(call MAKE_BL,2,${FIP_BL2_ARGS}))) endif ifeq (${NEED_SCP_BL2},yes) $(eval $(call TOOL_ADD_IMG,scp_bl2,--scp-fw)) endif ifeq (${NEED_BL31},yes) BL31_SOURCES += ${SPD_SOURCES} # Sort BL31 source files to remove duplicates BL31_SOURCES := $(sort ${BL31_SOURCES}) ifneq (${DECRYPTION_SUPPORT},none) $(if ${BL31}, $(eval $(call TOOL_ADD_IMG,bl31,--soc-fw,,$(ENCRYPT_BL31))),\ $(eval $(call MAKE_BL,31,soc-fw,,$(ENCRYPT_BL31)))) else $(if ${BL31}, $(eval $(call TOOL_ADD_IMG,bl31,--soc-fw)),\ $(eval $(call MAKE_BL,31,soc-fw))) endif endif # If a BL32 image is needed but neither BL32 nor BL32_SOURCES is defined, the # build system will call TOOL_ADD_IMG to print a warning message and abort the # process. Note that the dependency on BL32 applies to the FIP only. ifeq (${NEED_BL32},yes) # Sort BL32 source files to remove duplicates BL32_SOURCES := $(sort ${BL32_SOURCES}) BUILD_BL32 := $(if $(BL32),,$(if $(BL32_SOURCES),1)) ifneq (${DECRYPTION_SUPPORT},none) $(if ${BUILD_BL32}, $(eval $(call MAKE_BL,32,tos-fw,,$(ENCRYPT_BL32))),\ $(eval $(call TOOL_ADD_IMG,bl32,--tos-fw,,$(ENCRYPT_BL32)))) else $(if ${BUILD_BL32}, $(eval $(call MAKE_BL,32,tos-fw)),\ $(eval $(call TOOL_ADD_IMG,bl32,--tos-fw))) endif endif # Add the BL33 image if required by the platform ifeq (${NEED_BL33},yes) $(eval $(call TOOL_ADD_IMG,bl33,--nt-fw)) endif ifeq (${NEED_BL2U},yes) $(if ${BL2U}, $(eval $(call TOOL_ADD_IMG,bl2u,--ap-fwu-cfg,FWU_)),\ $(eval $(call MAKE_BL,2u,ap-fwu-cfg,FWU_))) endif # Expand build macros for the different images ifeq (${NEED_FDT},yes) $(eval $(call MAKE_DTBS,$(BUILD_PLAT)/fdts,$(FDT_SOURCES))) endif # Add Secure Partition packages ifeq (${NEED_SP_PKG},yes) $(BUILD_PLAT)/sp_gen.mk: ${SP_MK_GEN} ${SP_LAYOUT_FILE} | ${BUILD_PLAT} ${Q}${PYTHON} "$<" "$@" $(filter-out $<,$^) $(BUILD_PLAT) ${COT} sp: $(SPTOOL) $(DTBS) $(BUILD_PLAT)/sp_gen.mk ${Q}$(SPTOOL) $(SPTOOL_ARGS) @${ECHO_BLANK_LINE} @echo "Built SP Images successfully" @${ECHO_BLANK_LINE} endif locate-checkpatch: ifndef CHECKPATCH $(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/scripts/checkpatch.pl") else ifeq (,$(wildcard ${CHECKPATCH})) $(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/scripts/checkpatch.pl") endif endif clean: @echo " CLEAN" $(call SHELL_REMOVE_DIR,${BUILD_PLAT}) ifdef UNIX_MK ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean else # Clear the MAKEFLAGS as we do not want # to pass the gnumake flags to nmake. ${Q}set MAKEFLAGS= && ${MSVC_NMAKE} /nologo /f ${FIPTOOLPATH}/Makefile.msvc FIPTOOLPATH=$(subst /,\,$(FIPTOOLPATH)) FIPTOOL=$(subst /,\,$(FIPTOOL)) clean endif ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${ENCTOOLPATH} clean ${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean realclean distclean: @echo " REALCLEAN" $(call SHELL_REMOVE_DIR,${BUILD_BASE}) $(call SHELL_DELETE_ALL, ${CURDIR}/cscope.*) ifdef UNIX_MK ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean else # Clear the MAKEFLAGS as we do not want # to pass the gnumake flags to nmake. ${Q}set MAKEFLAGS= && ${MSVC_NMAKE} /nologo /f ${FIPTOOLPATH}/Makefile.msvc FIPTOOLPATH=$(subst /,\,$(FIPTOOLPATH)) FIPTOOL=$(subst /,\,$(FIPTOOL)) realclean endif ${Q}${MAKE} --no-print-directory -C ${SPTOOLPATH} clean ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${ENCTOOLPATH} realclean ${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean checkcodebase: locate-checkpatch @echo " CHECKING STYLE" @if test -d .git ; then \ git ls-files | grep -E -v 'libfdt|libc|docs|\.rst' | \ while read GIT_FILE ; \ do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ; \ done ; \ else \ find . -type f -not -iwholename "*.git*" \ -not -iwholename "*build*" \ -not -iwholename "*libfdt*" \ -not -iwholename "*libc*" \ -not -iwholename "*docs*" \ -not -iwholename "*.rst" \ -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ; \ fi checkpatch: locate-checkpatch @echo " CHECKING STYLE" @if test -n "${CHECKPATCH_OPTS}"; then \ echo " with ${CHECKPATCH_OPTS} option(s)"; \ fi ${Q}COMMON_COMMIT=$$(git merge-base HEAD ${BASE_COMMIT}); \ for commit in `git rev-list $$COMMON_COMMIT..HEAD`; do \ printf "\n[*] Checking style of '$$commit'\n\n"; \ git log --format=email "$$commit~..$$commit" \ -- ${CHECK_PATHS} | \ ${CHECKPATCH} ${CHECKPATCH_OPTS} - || true; \ git diff --format=email "$$commit~..$$commit" \ -- ${CHECK_PATHS} | \ ${CHECKPATCH} ${CHECKPATCH_OPTS} - || true; \ done certtool: ${CRTTOOL} .PHONY: ${CRTTOOL} ${CRTTOOL}: ${Q}${MAKE} PLAT=${PLAT} USE_TBBR_DEFS=${USE_TBBR_DEFS} COT=${COT} OPENSSL_DIR=${OPENSSL_DIR} CRTTOOL=${CRTTOOL} --no-print-directory -C ${CRTTOOLPATH} @${ECHO_BLANK_LINE} @echo "Built $@ successfully" @${ECHO_BLANK_LINE} ifneq (${GENERATE_COT},0) certificates: ${CRT_DEPS} ${CRTTOOL} ${Q}${CRTTOOL} ${CRT_ARGS} @${ECHO_BLANK_LINE} @echo "Built $@ successfully" @echo "Certificates can be found in ${BUILD_PLAT}" @${ECHO_BLANK_LINE} endif ${BUILD_PLAT}/${FIP_NAME}: ${FIP_DEPS} ${FIPTOOL} ${Q}${FIPTOOL} create ${FIP_ARGS} $@ ${Q}${FIPTOOL} info $@ @${ECHO_BLANK_LINE} @echo "Built $@ successfully" @${ECHO_BLANK_LINE} ifneq (${GENERATE_COT},0) fwu_certificates: ${FWU_CRT_DEPS} ${CRTTOOL} ${Q}${CRTTOOL} ${FWU_CRT_ARGS} @${ECHO_BLANK_LINE} @echo "Built $@ successfully" @echo "FWU certificates can be found in ${BUILD_PLAT}" @${ECHO_BLANK_LINE} endif ${BUILD_PLAT}/${FWU_FIP_NAME}: ${FWU_FIP_DEPS} ${FIPTOOL} ${Q}${FIPTOOL} create ${FWU_FIP_ARGS} $@ ${Q}${FIPTOOL} info $@ @${ECHO_BLANK_LINE} @echo "Built $@ successfully" @${ECHO_BLANK_LINE} fiptool: ${FIPTOOL} fip: ${BUILD_PLAT}/${FIP_NAME} fwu_fip: ${BUILD_PLAT}/${FWU_FIP_NAME} .PHONY: ${FIPTOOL} ${FIPTOOL}: @${ECHO_BLANK_LINE} @echo "Building $@" ifdef UNIX_MK ${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" FIPTOOL=${FIPTOOL} --no-print-directory -C ${FIPTOOLPATH} else # Clear the MAKEFLAGS as we do not want # to pass the gnumake flags to nmake. ${Q}set MAKEFLAGS= && ${MSVC_NMAKE} /nologo /f ${FIPTOOLPATH}/Makefile.msvc FIPTOOLPATH=$(subst /,\,$(FIPTOOLPATH)) FIPTOOL=$(subst /,\,$(FIPTOOL)) endif @${ECHO_BLANK_LINE} sptool: ${SPTOOL} .PHONY: ${SPTOOL} ${SPTOOL}: ${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" SPTOOL=${SPTOOL} --no-print-directory -C ${SPTOOLPATH} .PHONY: libraries romlib.bin: libraries ${Q}${MAKE} PLAT_DIR=${PLAT_DIR} BUILD_PLAT=${BUILD_PLAT} ENABLE_BTI=${ENABLE_BTI} ARM_ARCH_MINOR=${ARM_ARCH_MINOR} INCLUDES='${INCLUDES}' DEFINES='${DEFINES}' --no-print-directory -C ${ROMLIBPATH} all # Call print_memory_map tool memmap: all ${Q}${PYTHON} ${PRINT_MEMORY_MAP} ${BUILD_PLAT} ${INVERTED_MEMMAP} doc: @echo " BUILD DOCUMENTATION" ${Q}${MAKE} --no-print-directory -C ${DOCS_PATH} html enctool: ${ENCTOOL} .PHONY: ${ENCTOOL} ${ENCTOOL}: ${Q}${MAKE} PLAT=${PLAT} BUILD_INFO=0 OPENSSL_DIR=${OPENSSL_DIR} ENCTOOL=${ENCTOOL} --no-print-directory -C ${ENCTOOLPATH} @${ECHO_BLANK_LINE} @echo "Built $@ successfully" @${ECHO_BLANK_LINE} cscope: @echo " CSCOPE" ${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files ${Q}cscope -b -q -k help: @echo "usage: ${MAKE} [PLAT=] [OPTIONS] [TARGET]" @echo "" @echo "PLAT is used to specify which platform you wish to build." @echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}" @echo "" @echo "platform = ${PLATFORM_LIST}" @echo "" @echo "Please refer to the User Guide for a list of all supported options." @echo "Note that the build system doesn't track dependencies for build " @echo "options. Therefore, if any of the build options are changed " @echo "from a previous build, a clean build must be performed." @echo "" @echo "Supported Targets:" @echo " all Build all individual bootloader binaries" @echo " bl1 Build the BL1 binary" @echo " bl2 Build the BL2 binary" @echo " bl2u Build the BL2U binary" @echo " bl31 Build the BL31 binary" @echo " bl32 Build the BL32 binary. If ARCH=aarch32, then " @echo " this builds secure payload specified by AARCH32_SP" @echo " certificates Build the certificates (requires 'GENERATE_COT=1')" @echo " fip Build the Firmware Image Package (FIP)" @echo " fwu_fip Build the FWU Firmware Image Package (FIP)" @echo " checkcodebase Check the coding style of the entire source tree" @echo " checkpatch Check the coding style on changes in the current" @echo " branch against BASE_COMMIT (default origin/master)" @echo " clean Clean the build for the selected platform" @echo " cscope Generate cscope index" @echo " distclean Remove all build artifacts for all platforms" @echo " certtool Build the Certificate generation tool" @echo " enctool Build the Firmware encryption tool" @echo " fiptool Build the Firmware Image Package (FIP) creation tool" @echo " sp Build the Secure Partition Packages" @echo " sptool Build the Secure Partition Package creation tool" @echo " dtbs Build the Device Tree Blobs (if required for the platform)" @echo " memmap Print the memory map of the built binaries" @echo " doc Build html based documentation using Sphinx tool" @echo "" @echo "Note: most build targets require PLAT to be set to a specific platform." @echo "" @echo "example: build all targets for the FVP platform:" @echo " CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all"