Adding upstream version 2.10.0+dfsg.upstream/2.10.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1787 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..97c3c15
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,1787 @@
+#
+# Copyright (c) 2013-2023, Arm Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+#
+# Trusted Firmware Version
+#
+VERSION_MAJOR			:= 2
+VERSION_MINOR			:= 10
+VERSION_PATCH			:= 0	# Only used for LTS releases
+VERSION				:= ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}
+
+# 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_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,			\
+					lib/zlib			\
+					$(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
+
+################################################################################
+# 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
+
+################################################################################
+# 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.py
+SP_MK_GEN		?=	${SPTOOLPATH}/sp_mk_generator.py
+SP_DTS_LIST_FRAGMENT	?=	${BUILD_PLAT}/sp_list_fragment.dts
+
+# Variables for use with ROMLIB
+ROMLIBPATH		?=	lib/romlib
+
+# Variable for use with Python
+PYTHON			?=	python3
+
+# Variables for use with documentation build using Sphinx tool
+DOCS_PATH		?=	docs
+
+################################################################################
+# Compiler Configuration based on ARCH_MAJOR and ARCH_MINOR flags
+################################################################################
+ifeq (${ARM_ARCH_MAJOR},7)
+	target32-directive	= 	-target arm-none-eabi
+# Will set march-directive from platform configuration
+else
+	target32-directive	= 	-target armv8a-none-eabi
+endif #(ARM_ARCH_MAJOR)
+
+################################################################################
+# Get Architecture Feature Modifiers
+################################################################################
+arch-features		=	${ARM_ARCH_FEATURE}
+
+# Set the compiler's architecture feature modifiers
+ifneq ($(arch-features), none)
+	# Strip "none+" from arch-features
+	arch-features	:=	$(subst none+,,$(arch-features))
+	march-directive	:=	$(march-directive)+$(arch-features)
+# Print features
+        $(info Arm Architecture Features specified: $(subst +, ,$(arch-features)))
+endif #(arch-features)
+
+ifneq ($(findstring clang,$(notdir $(CC))),)
+	ifneq ($(findstring armclang,$(notdir $(CC))),)
+		TF_CFLAGS_aarch32	:=	-target arm-arm-none-eabi
+		TF_CFLAGS_aarch64	:=	-target aarch64-arm-none-eabi
+		LD			:=	$(LINKER)
+	else
+		TF_CFLAGS_aarch32	=	$(target32-directive)
+		TF_CFLAGS_aarch64	:=	-target aarch64-elf
+		LD			:=	$(shell $(CC) --print-prog-name ld.lld)
+
+		AR			:=	$(shell $(CC) --print-prog-name llvm-ar)
+		OD			:=	$(shell $(CC) --print-prog-name llvm-objdump)
+		OC			:=	$(shell $(CC) --print-prog-name llvm-objcopy)
+	endif
+
+	CPP		:=	$(CC) -E $(TF_CFLAGS_$(ARCH))
+	PP		:=	$(CC) -E $(TF_CFLAGS_$(ARCH))
+	AS		:=	$(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH))
+else ifneq ($(findstring gcc,$(notdir $(CC))),)
+	ifeq ($(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
+	LD			=	$(LINKER)
+endif #(clang)
+
+# Process Debug flag
+$(eval $(call add_define,DEBUG))
+ifneq (${DEBUG}, 0)
+	BUILD_TYPE	:=	debug
+	TF_CFLAGS	+=	-g -gdwarf-4
+	ASFLAGS		+=	-g -Wa,-gdwarf-4
+
+	# 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 #(Debug)
+
+# 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}(${BUILD_TYPE}):${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 #(AARCH32_INSTRUCTION_SET)
+
+TF_CFLAGS_aarch32	+=	-mno-unaligned-access
+TF_CFLAGS_aarch64	+=	-mgeneral-regs-only -mstrict-align
+
+ASFLAGS		+=	$(march-directive)
+
+##############################################################################
+# WARNINGS Configuration
+###############################################################################
+# General warnings
+WARNINGS		:=	-Wall -Wmissing-include-dirs -Wunused	\
+				-Wdisabled-optimization -Wvla -Wshadow	\
+				-Wredundant-decls
+# stricter warnings
+WARNINGS		+=	-Wextra -Wno-trigraphs
+# too verbose for generic build
+WARNINGS		+=	-Wno-missing-field-initializers \
+				-Wno-type-limits -Wno-sign-compare \
+# on clang this flag gets reset if -Wextra is set after it. No difference on gcc
+WARNINGS		+=	-Wno-unused-parameter
+
+# Additional warnings
+# Level 1 - infrequent warnings we should have none of
+# full -Wextra
+WARNING1 += -Wsign-compare
+WARNING1 += -Wtype-limits
+WARNING1 += -Wmissing-field-initializers
+
+# Level 2 - problematic warnings that we want
+# zlib, compiler-rt, coreboot, and mbdedtls blow up with these
+# TODO: disable just for them and move into default build
+WARNING2 += -Wold-style-definition
+WARNING2 += -Wmissing-prototypes
+WARNING2 += -Wmissing-format-attribute
+# TF-A aims to comply with this eventually. Effort too large at present
+WARNING2 += -Wundef
+# currently very involved and many platforms set this off
+WARNING2 += -Wunused-const-variable=2
+
+# Level 3 - very pedantic, frequently ignored
+WARNING3 := -Wbad-function-cast
+WARNING3 += -Waggregate-return
+WARNING3 += -Wnested-externs
+WARNING3 += -Wcast-align
+WARNING3 += -Wcast-qual
+WARNING3 += -Wconversion
+WARNING3 += -Wpacked
+WARNING3 += -Wpointer-arith
+WARNING3 += -Wswitch-default
+
+# Setting W is quite verbose and most warnings will be pre-existing issues
+# outside of the contributor's control. Don't fail the build on them so warnings
+# can be seen and hopefully addressed
+ifdef W
+	ifneq (${W},0)
+		E	 ?= 0
+	endif
+endif
+
+ifeq (${W},1)
+	WARNINGS += $(WARNING1)
+else ifeq (${W},2)
+	WARNINGS += $(WARNING1) $(WARNING2)
+else ifeq (${W},3)
+	WARNINGS += $(WARNING1) $(WARNING2) $(WARNING3)
+endif #(W)
+
+# Compiler specific warnings
+ifeq ($(findstring clang,$(notdir $(CC))),)
+# not using clang
+WARNINGS	+=		-Wunused-but-set-variable -Wmaybe-uninitialized	\
+				-Wpacked-bitfield-compat -Wshift-overflow=2 \
+				-Wlogical-op
+
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523
+TF_CFLAGS		+= 	$(call cc_option, --param=min-pagesize=0)
+
+else
+# using clang
+WARNINGS	+=		-Wshift-overflow -Wshift-sign-overflow \
+				-Wlogical-op-parentheses
+endif #(Clang Warning)
+
+ifneq (${E},0)
+	ERRORS := -Werror
+endif #(E)
+
+################################################################################
+# Compiler and Linker Directives
+################################################################################
+CPPFLAGS		=	${DEFINES} ${INCLUDES} ${MBEDTLS_INC} -nostdinc	\
+				$(ERRORS) $(WARNINGS)
+ASFLAGS			+=	$(CPPFLAGS)                 			\
+				-ffreestanding -Wa,--fatal-warnings
+TF_CFLAGS		+=	$(CPPFLAGS) $(TF_CFLAGS_$(ARCH))		\
+				-ffunction-sections -fdata-sections		\
+				-ffreestanding -fno-builtin -fno-common		\
+				-Os -std=gnu99
+
+ifeq (${SANITIZE_UB},on)
+	TF_CFLAGS	+=	-fsanitize=undefined -fno-sanitize-recover
+endif #(${SANITIZE_UB},on)
+
+ifeq (${SANITIZE_UB},trap)
+	TF_CFLAGS	+=	-fsanitize=undefined -fno-sanitize-recover	\
+				-fsanitize-undefined-trap-on-error
+endif #(${SANITIZE_UB},trap)
+
+GCC_V_OUTPUT		:=	$(shell $(CC) -v 2>&1)
+
+TF_LDFLAGS		+=	-z noexecstack
+
+# LD = armlink
+ifneq ($(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 $(LD))),)
+	# Pass ld options with Wl or Xlinker switches
+	TF_LDFLAGS		+=	-Wl,--fatal-warnings -O1
+	TF_LDFLAGS		+=	-Wl,--gc-sections
+
+	TF_LDFLAGS		+=	-Wl,-z,common-page-size=4096 #Configure page size constants
+	TF_LDFLAGS		+=	-Wl,-z,max-page-size=4096
+
+	ifeq ($(ENABLE_LTO),1)
+		ifeq (${ARCH},aarch64)
+			TF_LDFLAGS	+=	-flto -fuse-linker-plugin
+		endif
+	endif #(ENABLE_LTO)
+
+# GCC automatically adds fix-cortex-a53-843419 flag when used to link
+# which breaks some builds, so disable if errata fix is not explicitly enabled
+	ifeq (${ARCH},aarch64)
+		ifneq (${ERRATA_A53_843419},1)
+			TF_LDFLAGS	+= 	-mno-fix-cortex-a53-843419
+		endif
+	endif
+	TF_LDFLAGS		+= 	-nostdlib
+	TF_LDFLAGS		+=	$(subst --,-Xlinker --,$(TF_LDFLAGS_$(ARCH)))
+
+# LD = gcc-ld (ld) or llvm-ld (ld.lld) or other
+else
+# With ld.bfd version 2.39 and newer new warnings are added. Skip those since we
+# are not loaded by a elf loader.
+	TF_LDFLAGS		+=	$(call ld_option, --no-warn-rwx-segments)
+	TF_LDFLAGS		+=	-O1
+	TF_LDFLAGS		+=	--gc-sections
+
+	TF_LDFLAGS		+=	-z common-page-size=4096 # Configure page size constants
+	TF_LDFLAGS		+=	-z max-page-size=4096
+
+# ld.lld doesn't recognize the errata flags,
+# therefore don't add those in that case.
+# ld.lld reports section type mismatch warnings,
+# therefore don't add --fatal-warnings to it.
+	ifeq ($(findstring ld.lld,$(notdir $(LD))),)
+		TF_LDFLAGS	+=	$(TF_LDFLAGS_$(ARCH)) --fatal-warnings
+	endif
+
+endif #(LD = armlink)
+
+################################################################################
+# Setup ARCH_MAJOR/MINOR before parsing arch_features.
+################################################################################
+ifeq (${ENABLE_RME},1)
+	ARM_ARCH_MAJOR := 8
+	ARM_ARCH_MINOR := 6
+endif
+
+################################################################################
+# Common sources and include directories
+################################################################################
+include lib/compiler-rt/compiler-rt.mk
+
+BL_COMMON_SOURCES	+=	common/bl_common.c			\
+				common/tf_log.c				\
+				common/${ARCH}/debug.S			\
+				drivers/console/multi_console.c		\
+				lib/${ARCH}/cache_helpers.S		\
+				lib/${ARCH}/misc_helpers.S		\
+				lib/extensions/pmuv3/${ARCH}/pmuv3.c	\
+				plat/common/plat_bl_common.c		\
+				plat/common/plat_log_common.c		\
+				plat/common/${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}
+
+DTC_FLAGS		+=	-I dts -O dtb
+DTC_CPPFLAGS		+=	-P -nostdinc $(INCLUDES) -Ifdts -undef \
+				-x assembler-with-cpp $(DEFINES)
+
+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)
+	# SPMD is located in std_svc directory
+		SPD_DIR := std_svc
+
+		ifeq ($(SPMD_SPM_AT_SEL2),1)
+			CTX_INCLUDE_EL2_REGS := 1
+			ifeq ($(SPMC_AT_EL3),1)
+                                $(error SPM cannot be enabled in both S-EL2 and EL3.)
+			endif
+		endif
+
+		ifeq ($(findstring optee_sp,$(ARM_SPMC_MANIFEST_DTS)),optee_sp)
+			DTC_CPPFLAGS	+=	-DOPTEE_SP_FW_CONFIG
+		endif
+
+		ifeq ($(TS_SP_FW_CONFIG),1)
+		DTC_CPPFLAGS	+=	-DTS_SP_FW_CONFIG
+		endif
+
+		ifneq ($(ARM_BL2_SP_LIST_DTS),)
+		DTC_CPPFLAGS += -DARM_BL2_SP_LIST_DTS=$(ARM_BL2_SP_LIST_DTS)
+		endif
+
+		ifneq ($(SP_LAYOUT_FILE),)
+		BL2_ENABLE_SP_LOAD := 1
+		endif
+
+		ifeq ($(SPMC_AT_EL3_SEL0_SP),1)
+			ifneq ($(SPMC_AT_EL3),1)
+			$(error SEL0 SP cannot be enabled without SPMC at EL3)
+			endif
+		endif
+	else
+		# All other SPDs in spd directory
+		SPD_DIR := spd
+	endif #(SPD)
+
+	# 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 ${SPD_MAKE}
+
+	# If there's BL32 companion for the chosen SPD, we expect that the SPD's
+	# Makefile would set NEED_BL32 to "yes". In this case, the build system
+	# supports two mutually exclusive options:
+	# * BL32 is built from source: then BL32_SOURCES must contain the list
+	#   of source files to build BL32
+	# * BL32 is a prebuilt binary: then BL32 must point to the image file
+	#   that will be included in the FIP
+	# If both BL32_SOURCES and BL32 are defined, the binary takes precedence
+	# over the sources.
+endif #(SPD=none)
+
+ifeq (${ENABLE_SPMD_LP}, 1)
+ifneq (${SPD},spmd)
+        $(error Error: ENABLE_SPMD_LP requires SPD=spmd.)
+endif
+ifeq ($(SPMC_AT_EL3),1)
+        $(error SPMC at EL3 not supported when enabling SPMD Logical partitions.)
+endif
+endif
+
+################################################################################
+# Process BRANCH_PROTECTION value and set
+# Pointer Authentication and Branch Target Identification flags
+################################################################################
+ifeq (${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 ${BRANCH_PROTECTION})
+endif #(BRANCH_PROTECTION)
+
+ifeq ($(ENABLE_PAUTH),1)
+	CTX_INCLUDE_PAUTH_REGS := 1
+endif
+ifneq (${BP_OPTION},none)
+	TF_CFLAGS_aarch64	+=	-mbranch-protection=${BP_OPTION}
+endif #(BP_OPTION)
+
+# Pointer Authentication sources
+ifeq (${ENABLE_PAUTH}, 1)
+# arm/common/aarch64/arm_pauth.c contains a sample platform hook to complete the
+# Pauth support. As it's not secure, it must be reimplemented for real platforms
+	BL_COMMON_SOURCES	+=	lib/extensions/pauth/pauth_helpers.S
+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}
+
+################################################################################
+# Setup arch_features based on ARM_ARCH_MAJOR, ARM_ARCH_MINOR provided from
+# platform.
+################################################################################
+include ${MAKE_HELPERS_DIRECTORY}arch_features.mk
+
+####################################################
+# Enable required options for Memory Stack Tagging.
+####################################################
+
+# Currently, these options are enabled only for clang and armclang compiler.
+ifeq (${SUPPORT_STACK_MEMTAG},yes)
+    ifdef mem_tag_arch_support
+        # Check for armclang and clang compilers
+        ifneq ( ,$(filter $(notdir $(CC)),armclang clang))
+        # Add "memtag" architecture feature modifier if not specified
+            ifeq ( ,$(findstring memtag,$(arch-features)))
+                arch-features	:=	$(arch-features)+memtag
+            endif	# memtag
+            ifeq ($(notdir $(CC)),armclang)
+                TF_CFLAGS	+=	-mmemtag-stack
+            else ifeq ($(notdir $(CC)),clang)
+                TF_CFLAGS	+=	-fsanitize=memtag
+            endif	# armclang
+        endif
+    else
+        $(error "Error: stack memory tagging is not supported for  \
+        architecture ${ARCH},armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a")
+	endif #(mem_tag_arch_support)
+endif #(SUPPORT_STACK_MEMTAG)
+
+################################################################################
+# RME dependent flags configuration, Enable optional features for RME.
+################################################################################
+# FEAT_RME
+ifeq (${ENABLE_RME},1)
+	# RME doesn't support BRBE
+	ENABLE_BRBE_FOR_NS := 0
+
+	# RME doesn't support PIE
+	ifneq (${ENABLE_PIE},0)
+                $(error ENABLE_RME does not support PIE)
+	endif
+
+	# RME doesn't support BRBE
+	ifneq (${ENABLE_BRBE_FOR_NS},0)
+                $(error ENABLE_RME does not support BRBE.)
+	endif
+
+	# RME requires AARCH64
+	ifneq (${ARCH},aarch64)
+                $(error ENABLE_RME requires AArch64)
+	endif
+
+	# RME requires el2 context to be saved for now.
+	CTX_INCLUDE_EL2_REGS := 1
+	CTX_INCLUDE_AARCH32_REGS := 0
+	CTX_INCLUDE_PAUTH_REGS := 1
+
+	# RME enables CSV2_2 extension by default.
+	ENABLE_FEAT_CSV2_2 = 1
+endif #(FEAT_RME)
+
+################################################################################
+# Include rmmd Makefile if RME is enabled
+################################################################################
+ifneq (${ENABLE_RME},0)
+	ifneq (${ARCH},aarch64)
+                $(error ENABLE_RME requires AArch64)
+	endif
+	ifeq ($(SPMC_AT_EL3),1)
+                $(error SPMC_AT_EL3 and ENABLE_RME cannot both be enabled.)
+	endif
+
+	ifneq (${SPD}, none)
+		ifneq (${SPD}, spmd)
+                        $(error ENABLE_RME is incompatible with SPD=${SPD}. Use SPD=spmd)
+		endif
+	endif
+include services/std_svc/rmmd/rmmd.mk
+$(warning "RME is an experimental feature")
+endif
+
+ifeq (${CTX_INCLUDE_EL2_REGS}, 1)
+	ifeq (${SPD},none)
+		ifeq (${ENABLE_RME},0)
+                        $(error CTX_INCLUDE_EL2_REGS is available only when SPD \
+                        or RME is enabled)
+		endif
+	endif
+endif
+
+################################################################################
+# Platform specific Makefile might provide us ARCH_MAJOR/MINOR use that to come
+# up with appropriate march values for compiler.
+################################################################################
+include ${MAKE_HELPERS_DIRECTORY}march.mk
+
+TF_CFLAGS   +=	$(march-directive)
+
+# This internal flag is common option which is set to 1 for scenarios
+# when the BL2 is running in EL3 level. This occurs in two scenarios -
+# 4 world system running BL2 at EL3 and two world system without BL1 running
+# BL2 in EL3
+
+ifeq (${RESET_TO_BL2},1)
+	BL2_RUNS_AT_EL3	:=	1
+	ifeq (${ENABLE_RME},1)
+                $(error RESET_TO_BL2=1 and ENABLE_RME=1 configuration is not \
+                supported at the moment.)
+	endif
+else ifeq (${ENABLE_RME},1)
+	BL2_RUNS_AT_EL3	:=	1
+else
+	BL2_RUNS_AT_EL3	:=	0
+endif
+
+# This internal flag is set to 1 when Firmware First handling of External aborts
+# is required by lowe ELs. Currently only NS requires this support.
+ifeq ($(HANDLE_EA_EL3_FIRST_NS),1)
+	FFH_SUPPORT := 1
+else
+	FFH_SUPPORT := 0
+endif
+
+$(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 ($(PIE_FOUND),)
+	TF_CFLAGS	+=	-fno-PIE
+ifneq ($(findstring gcc,$(notdir $(LD))),)
+	TF_LDFLAGS	+=	-no-pie
+endif
+endif #(PIE_FOUND)
+
+ifneq ($(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 ($(RESET_TO_BL2),1)
+		ifneq ($(BL2_IN_XIP_MEM),1)
+			BL2_CPPFLAGS	+=	-fpie
+			BL2_CFLAGS	+=	-fpie
+			BL2_LDFLAGS	+=	$(PIE_LDFLAGS)
+		endif #(BL2_IN_XIP_MEM)
+	endif #(RESET_TO_BL2)
+	BL31_CPPFLAGS	+=	-fpie
+	BL31_CFLAGS 	+=	-fpie
+	BL31_LDFLAGS	+=	$(PIE_LDFLAGS)
+
+	BL32_CPPFLAGS	+=	-fpie
+	BL32_CFLAGS	+=	-fpie
+	BL32_LDFLAGS	+=	$(PIE_LDFLAGS)
+endif #(ENABLE_PIE)
+
+BL1_CPPFLAGS  += -DREPORT_ERRATA=${DEBUG}
+BL31_CPPFLAGS += -DREPORT_ERRATA=${DEBUG}
+BL32_CPPFLAGS += -DREPORT_ERRATA=${DEBUG}
+
+BL1_CPPFLAGS += -DIMAGE_AT_EL3
+ifeq ($(RESET_TO_BL2),1)
+	BL2_CPPFLAGS += -DIMAGE_AT_EL3
+else
+	BL2_CPPFLAGS += -DIMAGE_AT_EL1
+endif #(RESET_TO_BL2)
+
+ifeq (${ARCH},aarch64)
+	BL2U_CPPFLAGS += -DIMAGE_AT_EL1
+	BL31_CPPFLAGS += -DIMAGE_AT_EL3
+	BL32_CPPFLAGS += -DIMAGE_AT_EL1
+else
+	BL32_CPPFLAGS += -DIMAGE_AT_EL3
+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
+
+################################################################################
+# Build `AARCH32_SP` as BL32 image for AArch32
+################################################################################
+ifeq (${ARCH},aarch32)
+        NEED_BL32 := yes
+
+        ifneq (${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 ${AARCH32_SP_MAKE}
+        endif
+endif #(ARCH=aarch32)
+
+################################################################################
+# Include libc if not overridden
+################################################################################
+ifeq (${OVERRIDE_LIBC},0)
+include lib/libc/libc.mk
+endif
+
+################################################################################
+# Check incompatible options and dependencies
+################################################################################
+
+# USE_DEBUGFS experimental feature recommended only in debug builds
+ifeq (${USE_DEBUGFS},1)
+        ifeq (${DEBUG},1)
+                $(warning DEBUGFS experimental feature is enabled.)
+        else
+                $(warning DEBUGFS experimental, recommended in DEBUG builds ONLY)
+        endif
+endif #(USE_DEBUGFS)
+
+# USE_SPINLOCK_CAS requires AArch64 build
+ifeq (${USE_SPINLOCK_CAS},1)
+        ifneq (${ARCH},aarch64)
+               $(error USE_SPINLOCK_CAS requires AArch64)
+        endif
+endif #(USE_SPINLOCK_CAS)
+
+# The cert_create tool cannot generate certificates individually, so we use the
+# target 'certificates' to create them all
+ifneq (${GENERATE_COT},0)
+        FIP_DEPS += certificates
+        FWU_FIP_DEPS += fwu_certificates
+endif
+
+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 #(DECRYPTION_SUPPORT)
+
+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)
+                $(error "TRUSTED_BOARD_BOOT and EL3_PAYLOAD_BASE are \
+                incompatible \ build options.")
+	endif
+endif #(EL3_PAYLOAD_BASE)
+
+ifeq (${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
+                $(warning "BL33 image is not needed when option \
+                PRELOADED_BL33_BASE is used and won't be added to the FIP file.")
+	endif
+endif #(NEED_BL33)
+
+# When building for systems with hardware-assisted coherency, there's no need to
+# use USE_COHERENT_MEM. Require that USE_COHERENT_MEM must be set to 0 too.
+ifeq ($(HW_ASSISTED_COHERENCY)-$(USE_COHERENT_MEM),1-1)
+        $(error USE_COHERENT_MEM cannot be enabled with HW_ASSISTED_COHERENCY)
+endif
+
+#For now, BL2_IN_XIP_MEM is only supported when RESET_TO_BL2 is 1.
+ifeq ($(RESET_TO_BL2)-$(BL2_IN_XIP_MEM),0-1)
+        $(error "BL2_IN_XIP_MEM is only supported when RESET_TO_BL2 is enabled")
+endif
+
+# RAS_EXTENSION is deprecated, provide alternate build options
+ifeq ($(RAS_EXTENSION),1)
+        $(error "RAS_EXTENSION is now deprecated, please use ENABLE_FEAT_RAS \
+        and HANDLE_EA_EL3_FIRST_NS instead")
+endif
+
+
+# When FAULT_INJECTION_SUPPORT is used, require that FEAT_RAS is enabled
+ifeq ($(FAULT_INJECTION_SUPPORT),1)
+	ifeq ($(ENABLE_FEAT_RAS),0)
+                $(error For FAULT_INJECTION_SUPPORT, ENABLE_FEAT_RAS must not be 0)
+	endif
+endif #(FAULT_INJECTION_SUPPORT)
+
+# DYN_DISABLE_AUTH can be set only when TRUSTED_BOARD_BOOT=1
+ifeq ($(DYN_DISABLE_AUTH), 1)
+	ifeq (${TRUSTED_BOARD_BOOT}, 0)
+                $(error "TRUSTED_BOARD_BOOT must be enabled for DYN_DISABLE_AUTH \
+                to be set.")
+	endif
+endif #(DYN_DISABLE_AUTH)
+
+ifeq ($(MEASURED_BOOT)-$(TRUSTED_BOARD_BOOT),1-1)
+# Support authentication verification and hash calculation
+	CRYPTO_SUPPORT := 3
+else ifeq ($(DRTM_SUPPORT)-$(TRUSTED_BOARD_BOOT),1-1)
+# Support authentication verification and hash calculation
+	CRYPTO_SUPPORT := 3
+else ifneq ($(filter 1,${MEASURED_BOOT} ${DRTM_SUPPORT}),)
+# Support hash calculation only
+	CRYPTO_SUPPORT := 2
+else ifeq (${TRUSTED_BOARD_BOOT},1)
+# Support authentication verification only
+	CRYPTO_SUPPORT := 1
+else
+	CRYPTO_SUPPORT := 0
+endif #($(MEASURED_BOOT)-$(TRUSTED_BOARD_BOOT))
+
+# SDEI_IN_FCONF is only supported when SDEI_SUPPORT is enabled.
+ifeq ($(SDEI_SUPPORT)-$(SDEI_IN_FCONF),0-1)
+        $(error "SDEI_IN_FCONF is only supported when SDEI_SUPPORT is enabled")
+endif
+
+# If pointer authentication is used in the firmware, make sure that all the
+# registers associated to it are also saved and restored.
+# Not doing it would leak the value of the keys used by EL3 to EL1 and S-EL1.
+ifeq ($(ENABLE_PAUTH),1)
+	ifeq ($(CTX_INCLUDE_PAUTH_REGS),0)
+                $(error Pointer Authentication requires CTX_INCLUDE_PAUTH_REGS=1)
+	endif
+endif #(ENABLE_PAUTH)
+
+ifeq ($(CTX_INCLUDE_PAUTH_REGS),1)
+	ifneq (${ARCH},aarch64)
+                $(error CTX_INCLUDE_PAUTH_REGS requires AArch64)
+	endif
+endif #(CTX_INCLUDE_PAUTH_REGS)
+
+ifeq ($(CTX_INCLUDE_MTE_REGS),1)
+	ifneq (${ARCH},aarch64)
+                $(error CTX_INCLUDE_MTE_REGS requires AArch64)
+	endif
+endif #(CTX_INCLUDE_MTE_REGS)
+
+ifeq ($(PSA_FWU_SUPPORT),1)
+        $(info PSA_FWU_SUPPORT is an experimental feature)
+endif #(PSA_FWU_SUPPORT)
+
+ifeq ($(FEATURE_DETECTION),1)
+        $(info FEATURE_DETECTION is an experimental feature)
+endif #(FEATURE_DETECTION)
+
+ifneq ($(ENABLE_SME2_FOR_NS), 0)
+	ifeq (${ENABLE_SME_FOR_NS}, 0)
+                $(warning "ENABLE_SME2_FOR_NS requires ENABLE_SME_FOR_NS also \
+                to be set")
+                $(warning "Forced ENABLE_SME_FOR_NS=1")
+		override ENABLE_SME_FOR_NS	:= 1
+	endif
+endif #(ENABLE_SME2_FOR_NS)
+
+ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1)
+	ifeq (${ALLOW_RO_XLAT_TABLES}, 1)
+                $(error "ALLOW_RO_XLAT_TABLES requires translation tables \
+                library v2")
+	endif
+endif #(ARM_XLAT_TABLES_LIB_V1)
+
+ifneq (${DECRYPTION_SUPPORT},none)
+	ifeq (${TRUSTED_BOARD_BOOT}, 0)
+                $(error TRUSTED_BOARD_BOOT must be enabled for DECRYPTION_SUPPORT \
+                to be set)
+	endif
+endif #(DECRYPTION_SUPPORT)
+
+# Ensure that no Aarch64-only features are enabled in Aarch32 build
+ifeq (${ARCH},aarch32)
+
+	# SME/SVE only supported on AArch64
+	ifneq (${ENABLE_SME_FOR_NS},0)
+                $(error "ENABLE_SME_FOR_NS cannot be used with ARCH=aarch32")
+	endif
+
+	ifeq (${ENABLE_SVE_FOR_NS},1)
+		# Warning instead of error due to CI dependency on this
+                $(error "ENABLE_SVE_FOR_NS cannot be used with ARCH=aarch32")
+	endif
+
+	# BRBE is not supported in AArch32
+	ifeq (${ENABLE_BRBE_FOR_NS},1)
+                $(error "ENABLE_BRBE_FOR_NS cannot be used with ARCH=aarch32")
+	endif
+
+	# FEAT_RNG_TRAP is not supported in AArch32
+	ifeq (${ENABLE_FEAT_RNG_TRAP},1)
+                $(error "ENABLE_FEAT_RNG_TRAP cannot be used with ARCH=aarch32")
+	endif
+endif #(ARCH=aarch32)
+
+ifneq (${ENABLE_SME_FOR_NS},0)
+	ifeq (${ENABLE_SVE_FOR_NS},0)
+                $(error "ENABLE_SME_FOR_NS requires ENABLE_SVE_FOR_NS")
+	endif
+endif #(ENABLE_SME_FOR_NS)
+
+# Secure SME/SVE requires the non-secure component as well
+ifeq (${ENABLE_SME_FOR_SWD},1)
+	ifeq (${ENABLE_SME_FOR_NS},0)
+                $(error "ENABLE_SME_FOR_SWD requires ENABLE_SME_FOR_NS")
+	endif
+	ifeq (${ENABLE_SVE_FOR_SWD},0)
+                $(error "ENABLE_SME_FOR_SWD requires ENABLE_SVE_FOR_SWD")
+	endif
+endif #(ENABLE_SME_FOR_SWD)
+
+ifeq (${ENABLE_SVE_FOR_SWD},1)
+	ifeq (${ENABLE_SVE_FOR_NS},0)
+                $(error "ENABLE_SVE_FOR_SWD requires ENABLE_SVE_FOR_NS")
+	endif
+endif #(ENABLE_SVE_FOR_SWD)
+
+# SVE and SME cannot be used with CTX_INCLUDE_FPREGS since secure manager does
+# its own context management including FPU registers.
+ifeq (${CTX_INCLUDE_FPREGS},1)
+	ifneq (${ENABLE_SME_FOR_NS},0)
+                $(error "ENABLE_SME_FOR_NS cannot be used with CTX_INCLUDE_FPREGS")
+	endif
+
+	ifeq (${ENABLE_SVE_FOR_NS},1)
+		# Warning instead of error due to CI dependency on this
+                $(warning "ENABLE_SVE_FOR_NS cannot be used with CTX_INCLUDE_FPREGS")
+                $(warning "Forced ENABLE_SVE_FOR_NS=0")
+		override ENABLE_SVE_FOR_NS	:= 0
+	endif
+endif #(CTX_INCLUDE_FPREGS)
+
+ifeq ($(DRTM_SUPPORT),1)
+        $(info DRTM_SUPPORT is an experimental feature)
+endif
+
+ifeq (${TRANSFER_LIST},1)
+        $(info TRANSFER_LIST is an experimental feature)
+endif
+
+ifeq (${ENABLE_RME},1)
+	ifneq (${SEPARATE_CODE_AND_RODATA},1)
+                $(error `ENABLE_RME=1` requires `SEPARATE_CODE_AND_RODATA=1`)
+	endif
+endif
+
+# Determine if FEAT_RNG is supported
+ENABLE_FEAT_RNG		=	$(if $(findstring rng,${arch-features}),1,0)
+
+# Determine if FEAT_SB is supported
+ENABLE_FEAT_SB		=	$(if $(findstring sb,${arch-features}),1,0)
+
+ifeq ($(PSA_CRYPTO),1)
+        $(info PSA_CRYPTO is an experimental feature)
+endif
+
+################################################################################
+# Process platform overrideable behaviour
+################################################################################
+
+ifdef BL1_SOURCES
+	NEED_BL1 := yes
+endif #(BL1_SOURCES)
+
+ifdef BL2_SOURCES
+	NEED_BL2 := yes
+
+	# Using BL2 implies that a BL33 image also needs to be supplied for the FIP and
+	# Certificate generation tools. This flag can be overridden by the platform.
+	ifdef EL3_PAYLOAD_BASE
+		# If booting an EL3 payload there is no need for a BL33 image
+		# in the FIP file.
+		NEED_BL33		:=	no
+	else
+		ifdef PRELOADED_BL33_BASE
+			# If booting a BL33 preloaded image there is no need of
+			# another one in the FIP file.
+			NEED_BL33		:=	no
+		else
+			NEED_BL33		?=	yes
+		endif
+	endif
+endif #(BL2_SOURCES)
+
+ifdef BL2U_SOURCES
+	NEED_BL2U := yes
+endif #(BL2U_SOURCES)
+
+# If SCP_BL2 is given, we always want FIP to include it.
+ifdef SCP_BL2
+	NEED_SCP_BL2		:=	yes
+endif #(SCP_BL2)
+
+# For AArch32, BL31 is not currently supported.
+ifneq (${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 #(ARCH=aarch64)
+
+# 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 #(GENERATE_COT)
+
+ifneq (${FIP_ALIGN},0)
+	FIP_ARGS += --align ${FIP_ALIGN}
+endif #(FIP_ALIGN)
+
+ifdef FDT_SOURCES
+	NEED_FDT := yes
+endif #(FDT_SOURCES)
+
+################################################################################
+# Include libraries' Makefile that are used in all BL
+################################################################################
+
+include lib/stack_protector/stack_protector.mk
+
+################################################################################
+# Include BL specific makefiles
+################################################################################
+
+ifeq (${NEED_BL1},yes)
+include bl1/bl1.mk
+endif
+
+ifeq (${NEED_BL2},yes)
+include bl2/bl2.mk
+endif
+
+ifeq (${NEED_BL2U},yes)
+include bl2u/bl2u.mk
+endif
+
+ifeq (${NEED_BL31},yes)
+include bl31/bl31.mk
+endif
+
+################################################################################
+# Build options checks
+################################################################################
+
+# Boolean_Flags
+$(eval $(call assert_booleans,\
+    $(sort \
+	ALLOW_RO_XLAT_TABLES \
+	BL2_ENABLE_SP_LOAD \
+	COLD_BOOT_SINGLE_CPU \
+	CREATE_KEYS \
+	CTX_INCLUDE_AARCH32_REGS \
+	CTX_INCLUDE_FPREGS \
+	CTX_INCLUDE_EL2_REGS \
+	DEBUG \
+	DYN_DISABLE_AUTH \
+	EL3_EXCEPTION_HANDLING \
+	ENABLE_AMU_AUXILIARY_COUNTERS \
+	ENABLE_AMU_FCONF \
+	AMU_RESTRICT_COUNTERS \
+	ENABLE_ASSERTIONS \
+	ENABLE_FEAT_SB \
+	ENABLE_PIE \
+	ENABLE_PMF \
+	ENABLE_PSCI_STAT \
+	ENABLE_RUNTIME_INSTRUMENTATION \
+	ENABLE_SME_FOR_SWD \
+	ENABLE_SVE_FOR_SWD \
+	ENABLE_FEAT_RAS	\
+	FFH_SUPPORT	\
+	ERROR_DEPRECATED \
+	FAULT_INJECTION_SUPPORT \
+	GENERATE_COT \
+	GICV2_G0_FOR_EL3 \
+	HANDLE_EA_EL3_FIRST_NS \
+	HW_ASSISTED_COHERENCY \
+	MEASURED_BOOT \
+	DRTM_SUPPORT \
+	NS_TIMER_SWITCH \
+	OVERRIDE_LIBC \
+	PL011_GENERIC_UART \
+	PLAT_RSS_NOT_SUPPORTED \
+	PROGRAMMABLE_RESET_ADDRESS \
+	PSCI_EXTENDED_STATE_ID \
+	PSCI_OS_INIT_MODE \
+	RESET_TO_BL31 \
+	SAVE_KEYS \
+	SEPARATE_CODE_AND_RODATA \
+	SEPARATE_BL2_NOLOAD_REGION \
+	SEPARATE_NOBITS_REGION \
+	SPIN_ON_BL1_EXIT \
+	SPM_MM \
+	SPMC_AT_EL3 \
+	SPMC_AT_EL3_SEL0_SP \
+	SPMD_SPM_AT_SEL2 \
+	ENABLE_SPMD_LP \
+	TRANSFER_LIST \
+	TRUSTED_BOARD_BOOT \
+	USE_COHERENT_MEM \
+	USE_DEBUGFS \
+	ARM_IO_IN_DTB \
+	SDEI_IN_FCONF \
+	SEC_INT_DESC_IN_FCONF \
+	USE_ROMLIB \
+	USE_TBBR_DEFS \
+	WARMBOOT_ENABLE_DCACHE_EARLY \
+	RESET_TO_BL2 \
+	BL2_IN_XIP_MEM \
+	BL2_INV_DCACHE \
+	USE_SPINLOCK_CAS \
+	ENCRYPT_BL31 \
+	ENCRYPT_BL32 \
+	ERRATA_SPECULATIVE_AT \
+	RAS_TRAP_NS_ERR_REC_ACCESS \
+	COT_DESC_IN_DTB \
+	USE_SP804_TIMER \
+	PSA_FWU_SUPPORT \
+	ENABLE_MPMM \
+	ENABLE_MPMM_FCONF \
+	FEATURE_DETECTION \
+	TRNG_SUPPORT \
+	ERRATA_ABI_SUPPORT \
+	ERRATA_NON_ARM_INTERCONNECT \
+	CONDITIONAL_CMO \
+	PSA_CRYPTO	\
+	ENABLE_CONSOLE_GETC \
+	INIT_UNUSED_NS_EL2	\
+)))
+
+# Numeric_Flags
+$(eval $(call assert_numerics,\
+    $(sort \
+	ARM_ARCH_MAJOR \
+	ARM_ARCH_MINOR \
+	BRANCH_PROTECTION \
+	CTX_INCLUDE_PAUTH_REGS \
+	CTX_INCLUDE_MTE_REGS \
+	CTX_INCLUDE_NEVE_REGS \
+	CRYPTO_SUPPORT \
+	DISABLE_MTPMU \
+	ENABLE_BRBE_FOR_NS \
+	ENABLE_TRBE_FOR_NS \
+	ENABLE_BTI \
+	ENABLE_PAUTH \
+	ENABLE_FEAT_AMU \
+	ENABLE_FEAT_AMUv1p1 \
+	ENABLE_FEAT_CSV2_2 \
+	ENABLE_FEAT_DIT \
+	ENABLE_FEAT_ECV \
+	ENABLE_FEAT_FGT \
+	ENABLE_FEAT_HCX \
+	ENABLE_FEAT_PAN \
+	ENABLE_FEAT_RNG \
+	ENABLE_FEAT_RNG_TRAP \
+	ENABLE_FEAT_SEL2 \
+	ENABLE_FEAT_TCR2 \
+	ENABLE_FEAT_S2PIE \
+	ENABLE_FEAT_S1PIE \
+	ENABLE_FEAT_S2POE \
+	ENABLE_FEAT_S1POE \
+	ENABLE_FEAT_GCS \
+	ENABLE_FEAT_VHE \
+	ENABLE_FEAT_MTE_PERM \
+	ENABLE_FEAT_MPAM \
+	ENABLE_RME \
+	ENABLE_SPE_FOR_NS \
+	ENABLE_SYS_REG_TRACE_FOR_NS \
+	ENABLE_SME_FOR_NS \
+	ENABLE_SME2_FOR_NS \
+	ENABLE_SVE_FOR_NS \
+	ENABLE_TRF_FOR_NS \
+	FW_ENC_STATUS \
+	NR_OF_FW_BANKS \
+	NR_OF_IMAGES_IN_FW_BANK \
+	TWED_DELAY \
+	ENABLE_FEAT_TWED \
+	SVE_VECTOR_LEN \
+	IMPDEF_SYSREG_TRAP \
+)))
+
+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,\
+    $(sort \
+	ALLOW_RO_XLAT_TABLES \
+	ARM_ARCH_MAJOR \
+	ARM_ARCH_MINOR \
+	BL2_ENABLE_SP_LOAD \
+	COLD_BOOT_SINGLE_CPU \
+	CTX_INCLUDE_AARCH32_REGS \
+	CTX_INCLUDE_FPREGS \
+	CTX_INCLUDE_PAUTH_REGS \
+	EL3_EXCEPTION_HANDLING \
+	CTX_INCLUDE_MTE_REGS \
+	CTX_INCLUDE_EL2_REGS \
+	CTX_INCLUDE_NEVE_REGS \
+	DECRYPTION_SUPPORT_${DECRYPTION_SUPPORT} \
+	DISABLE_MTPMU \
+	ENABLE_FEAT_AMU \
+	ENABLE_AMU_AUXILIARY_COUNTERS \
+	ENABLE_AMU_FCONF \
+	AMU_RESTRICT_COUNTERS \
+	ENABLE_ASSERTIONS \
+	ENABLE_BTI \
+	ENABLE_FEAT_MPAM \
+	ENABLE_PAUTH \
+	ENABLE_PIE \
+	ENABLE_PMF \
+	ENABLE_PSCI_STAT \
+	ENABLE_RME \
+	ENABLE_RUNTIME_INSTRUMENTATION \
+	ENABLE_SME_FOR_NS \
+	ENABLE_SME2_FOR_NS \
+	ENABLE_SME_FOR_SWD \
+	ENABLE_SPE_FOR_NS \
+	ENABLE_SVE_FOR_NS \
+	ENABLE_SVE_FOR_SWD \
+	ENABLE_FEAT_RAS \
+	FFH_SUPPORT \
+	ENCRYPT_BL31 \
+	ENCRYPT_BL32 \
+	ERROR_DEPRECATED \
+	FAULT_INJECTION_SUPPORT \
+	GICV2_G0_FOR_EL3 \
+	HANDLE_EA_EL3_FIRST_NS \
+	HW_ASSISTED_COHERENCY \
+	LOG_LEVEL \
+	MEASURED_BOOT \
+	DRTM_SUPPORT \
+	NS_TIMER_SWITCH \
+	PL011_GENERIC_UART \
+	PLAT_${PLAT} \
+	PLAT_RSS_NOT_SUPPORTED \
+	PROGRAMMABLE_RESET_ADDRESS \
+	PSCI_EXTENDED_STATE_ID \
+	PSCI_OS_INIT_MODE \
+	RESET_TO_BL31 \
+	SEPARATE_CODE_AND_RODATA \
+	SEPARATE_BL2_NOLOAD_REGION \
+	SEPARATE_NOBITS_REGION \
+	RECLAIM_INIT_CODE \
+	SPD_${SPD} \
+	SPIN_ON_BL1_EXIT \
+	SPM_MM \
+	SPMC_AT_EL3 \
+	SPMC_AT_EL3_SEL0_SP \
+	SPMD_SPM_AT_SEL2 \
+	TRANSFER_LIST \
+	TRUSTED_BOARD_BOOT \
+	CRYPTO_SUPPORT \
+	TRNG_SUPPORT \
+	ERRATA_ABI_SUPPORT \
+	ERRATA_NON_ARM_INTERCONNECT \
+	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 \
+	RESET_TO_BL2 \
+	BL2_RUNS_AT_EL3	\
+	BL2_IN_XIP_MEM \
+	BL2_INV_DCACHE \
+	USE_SPINLOCK_CAS \
+	ERRATA_SPECULATIVE_AT \
+	RAS_TRAP_NS_ERR_REC_ACCESS \
+	COT_DESC_IN_DTB \
+	USE_SP804_TIMER \
+	ENABLE_FEAT_RNG \
+	ENABLE_FEAT_RNG_TRAP \
+	ENABLE_FEAT_SB \
+	ENABLE_FEAT_DIT \
+	NR_OF_FW_BANKS \
+	NR_OF_IMAGES_IN_FW_BANK \
+	PSA_FWU_SUPPORT \
+	ENABLE_BRBE_FOR_NS \
+	ENABLE_TRBE_FOR_NS \
+	ENABLE_SYS_REG_TRACE_FOR_NS \
+	ENABLE_TRF_FOR_NS \
+	ENABLE_FEAT_HCX \
+	ENABLE_MPMM \
+	ENABLE_MPMM_FCONF \
+	ENABLE_FEAT_FGT \
+	ENABLE_FEAT_ECV \
+	ENABLE_FEAT_AMUv1p1 \
+	ENABLE_FEAT_SEL2 \
+	ENABLE_FEAT_VHE \
+	ENABLE_FEAT_CSV2_2 \
+	ENABLE_FEAT_PAN \
+	ENABLE_FEAT_TCR2 \
+	ENABLE_FEAT_S2PIE \
+	ENABLE_FEAT_S1PIE \
+	ENABLE_FEAT_S2POE \
+	ENABLE_FEAT_S1POE \
+	ENABLE_FEAT_GCS \
+	ENABLE_FEAT_MTE_PERM \
+	FEATURE_DETECTION \
+	TWED_DELAY \
+	ENABLE_FEAT_TWED \
+	CONDITIONAL_CMO \
+	IMPDEF_SYSREG_TRAP \
+	SVE_VECTOR_LEN \
+	ENABLE_SPMD_LP \
+	PSA_CRYPTO	\
+	ENABLE_CONSOLE_GETC \
+	INIT_UNUSED_NS_EL2	\
+)))
+
+ifeq (${SANITIZE_UB},trap)
+        $(eval $(call add_define,MONITOR_TRAPS))
+endif #(SANITIZE_UB)
+
+# 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 $(call add_define,PRELOADED_BL33_BASE))
+	endif
+endif #(EL3_PAYLOAD_BASE)
+
+# Define the DYN_DISABLE_AUTH flag only if set.
+ifeq (${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
+	-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 #(SP_LAYOUT_FILE)
+endif #(SPD)
+
+################################################################################
+# 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)
+BL1_SOURCES := $(sort ${BL1_SOURCES})
+$(eval $(call MAKE_BL,bl1))
+endif #(NEED_BL1)
+
+ifeq (${NEED_BL2},yes)
+
+ifeq (${RESET_TO_BL2}, 0)
+FIP_BL2_ARGS := tb-fw
+endif
+
+BL2_SOURCES := $(sort ${BL2_SOURCES})
+
+$(if ${BL2}, $(eval $(call TOOL_ADD_IMG,bl2,--${FIP_BL2_ARGS})),\
+	$(eval $(call MAKE_BL,bl2,${FIP_BL2_ARGS})))
+
+endif #(NEED_BL2)
+
+ifeq (${NEED_SCP_BL2},yes)
+$(eval $(call TOOL_ADD_IMG,scp_bl2,--scp-fw))
+endif #(NEED_SCP_BL2)
+
+ifeq (${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 $(call MAKE_BL,bl31,soc-fw,,$(ENCRYPT_BL31))))
+else
+$(if ${BL31}, $(eval $(call TOOL_ADD_IMG,bl31,--soc-fw)),\
+	$(eval $(call MAKE_BL,bl31,soc-fw)))
+endif #(DECRYPTION_SUPPORT)
+endif #(NEED_BL31)
+
+# If a BL32 image is needed but neither BL32 nor BL32_SOURCES is defined, the
+# build system will call TOOL_ADD_IMG to print a warning message and abort the
+# process. Note that the dependency on BL32 applies to the FIP only.
+ifeq (${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 $(call MAKE_BL,bl32,tos-fw,,$(ENCRYPT_BL32))),\
+	$(eval $(call TOOL_ADD_IMG,bl32,--tos-fw,,$(ENCRYPT_BL32))))
+else
+$(if ${BUILD_BL32}, $(eval $(call MAKE_BL,bl32,tos-fw)),\
+	$(eval $(call TOOL_ADD_IMG,bl32,--tos-fw)))
+endif #(DECRYPTION_SUPPORT)
+endif #(NEED_BL32)
+
+# If RMM image is needed but RMM is not defined, Test Realm Payload (TRP)
+# needs to be built from RMM_SOURCES.
+ifeq (${NEED_RMM},yes)
+# Sort RMM source files to remove duplicates
+RMM_SOURCES := $(sort ${RMM_SOURCES})
+BUILD_RMM := $(if $(RMM),,$(if $(RMM_SOURCES),1))
+
+$(if ${BUILD_RMM}, $(eval $(call MAKE_BL,rmm,rmm-fw)),\
+	 $(eval $(call TOOL_ADD_IMG,rmm,--rmm-fw)))
+endif #(NEED_RMM)
+
+# Add the BL33 image if required by the platform
+ifeq (${NEED_BL33},yes)
+$(eval $(call TOOL_ADD_IMG,bl33,--nt-fw))
+endif #(NEED_BL33)
+
+ifeq (${NEED_BL2U},yes)
+$(if ${BL2U}, $(eval $(call TOOL_ADD_IMG,bl2u,--ap-fwu-cfg,FWU_)),\
+	$(eval $(call MAKE_BL,bl2u,ap-fwu-cfg,FWU_)))
+endif #(NEED_BL2U)
+
+# Expand build macros for the different images
+ifeq (${NEED_FDT},yes)
+    $(eval $(call MAKE_DTBS,$(BUILD_PLAT)/fdts,$(FDT_SOURCES)))
+endif #(NEED_FDT)
+
+# Add Secure Partition packages
+ifeq (${NEED_SP_PKG},yes)
+$(BUILD_PLAT)/sp_gen.mk : ${SP_MK_GEN} ${SP_LAYOUT_FILE} | ${BUILD_PLAT}
+	${PYTHON} "$<" "$@" $(filter-out $<,$^) $(BUILD_PLAT) ${COT} ${SP_DTS_LIST_FRAGMENT}
+sp: $(DTBS) $(BUILD_PLAT)/sp_gen.mk $(SP_PKGS)
+	@${ECHO_BLANK_LINE}
+	@echo "Built SP Images successfully"
+	@${ECHO_BLANK_LINE}
+endif #(NEED_SP_PKG)
+
+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 #(CHECKPATCH)
+
+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 #(UNIX_MK)
+	${Q}${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 #(UNIX_MK)
+	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} realclean
+	${Q}${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 --no-merges $$COMMON_COMMIT..HEAD`;	\
+	do								\
+		printf "\n[*] Checking style of '$$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: ${CRTTOOL}
+
+${CRTTOOL}: FORCE
+	${Q}${MAKE} PLAT=${PLAT} USE_TBBR_DEFS=${USE_TBBR_DEFS} COT=${COT} OPENSSL_DIR=${OPENSSL_DIR} CRTTOOL=${CRTTOOL} DEBUG=${DEBUG} V=${V} --no-print-directory -C ${CRTTOOLPATH} all
+	@${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 #(GENERATE_COT)
+
+${BUILD_PLAT}/${FIP_NAME}: ${FIP_DEPS} ${FIPTOOL}
+	$(eval ${CHECK_FIP_CMD})
+	${Q}${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 #(GENERATE_COT)
+
+${BUILD_PLAT}/${FWU_FIP_NAME}: ${FWU_FIP_DEPS} ${FIPTOOL}
+	$(eval ${CHECK_FWU_FIP_CMD})
+	${Q}${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}
+
+${FIPTOOL}: FORCE
+ifdef UNIX_MK
+	${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" FIPTOOL=${FIPTOOL} OPENSSL_DIR=${OPENSSL_DIR} DEBUG=${DEBUG} V=${V} --no-print-directory -C ${FIPTOOLPATH} all
+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 #(UNIX_MK)
+
+romlib.bin: libraries FORCE
+	${Q}${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
+
+memmap: all
+ifdef UNIX_MK
+	${Q}PYTHONPATH=${CURDIR}/tools/memory \
+		${PYTHON} -m memory.memmap -sr ${BUILD_PLAT}
+else
+	${Q}set PYTHONPATH=${CURDIR}/tools/memory && \
+		${PYTHON} -m memory.memmap -sr ${BUILD_PLAT}
+endif
+
+doc:
+	@echo "  BUILD DOCUMENTATION"
+	${Q}${MAKE} --no-print-directory -C ${DOCS_PATH} html
+
+enctool: ${ENCTOOL}
+
+${ENCTOOL}: FORCE
+	${Q}${MAKE} PLAT=${PLAT} BUILD_INFO=0 OPENSSL_DIR=${OPENSSL_DIR} ENCTOOL=${ENCTOOL} DEBUG=${DEBUG} V=${V} --no-print-directory -C ${ENCTOOLPATH} all
+	@${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=<platform>] [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"
+
+.PHONY: FORCE
+FORCE:;