1#
2# Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
3#
4# SPDX-License-Identifier: BSD-3-Clause
5#
6
7#
8# Trusted Firmware Version
9#
10VERSION_MAJOR			:= 2
11VERSION_MINOR			:= 4
12
13# Default goal is build all images
14.DEFAULT_GOAL			:= all
15
16# Avoid any implicit propagation of command line variable definitions to
17# sub-Makefiles, like CFLAGS that we reserved for the firmware images'
18# usage. Other command line options like "-s" are still propagated as usual.
19MAKEOVERRIDES =
20
21MAKE_HELPERS_DIRECTORY := make_helpers/
22include ${MAKE_HELPERS_DIRECTORY}build_macros.mk
23include ${MAKE_HELPERS_DIRECTORY}build_env.mk
24
25################################################################################
26# Default values for build configurations, and their dependencies
27################################################################################
28
29include ${MAKE_HELPERS_DIRECTORY}defaults.mk
30
31# Assertions enabled for DEBUG builds by default
32ENABLE_ASSERTIONS		:= ${DEBUG}
33ENABLE_PMF			:= ${ENABLE_RUNTIME_INSTRUMENTATION}
34PLAT				:= ${DEFAULT_PLAT}
35
36################################################################################
37# Checkpatch script options
38################################################################################
39
40CHECKCODE_ARGS		:=	--no-patch
41# Do not check the coding style on imported library files or documentation files
42INC_ARM_DIRS_TO_CHECK	:=	$(sort $(filter-out                     \
43					include/drivers/arm/cryptocell,	\
44					$(wildcard include/drivers/arm/*)))
45INC_ARM_DIRS_TO_CHECK	+=	include/drivers/arm/cryptocell/*.h
46INC_DRV_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
47					include/drivers/arm,		\
48					$(wildcard include/drivers/*)))
49INC_LIB_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
50					include/lib/libfdt		\
51					include/lib/libc,		\
52					$(wildcard include/lib/*)))
53INC_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
54					include/lib			\
55					include/drivers,		\
56					$(wildcard include/*)))
57LIB_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
58					lib/compiler-rt			\
59					lib/libfdt%			\
60					lib/libc,			\
61					$(wildcard lib/*)))
62ROOT_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
63					lib				\
64					include				\
65					docs				\
66					%.rst,				\
67					$(wildcard *)))
68CHECK_PATHS		:=	${ROOT_DIRS_TO_CHECK}			\
69				${INC_DIRS_TO_CHECK}			\
70				${INC_LIB_DIRS_TO_CHECK}		\
71				${LIB_DIRS_TO_CHECK}			\
72				${INC_DRV_DIRS_TO_CHECK}		\
73				${INC_ARM_DIRS_TO_CHECK}
74
75
76################################################################################
77# Process build options
78################################################################################
79
80# Verbose flag
81ifeq (${V},0)
82        Q:=@
83        ECHO:=@echo
84        CHECKCODE_ARGS	+=	--no-summary --terse
85else
86        Q:=
87        ECHO:=$(ECHO_QUIET)
88endif
89
90ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),)
91        Q:=@
92        ECHO:=$(ECHO_QUIET)
93endif
94
95export Q ECHO
96
97# The cert_create tool cannot generate certificates individually, so we use the
98# target 'certificates' to create them all
99ifneq (${GENERATE_COT},0)
100        FIP_DEPS += certificates
101        FWU_FIP_DEPS += fwu_certificates
102endif
103
104# Process BRANCH_PROTECTION value and set
105# Pointer Authentication and Branch Target Identification flags
106ifeq (${BRANCH_PROTECTION},0)
107	# Default value turns off all types of branch protection
108	BP_OPTION := none
109else ifneq (${ARCH},aarch64)
110        $(error BRANCH_PROTECTION requires AArch64)
111else ifeq (${BRANCH_PROTECTION},1)
112	# Enables all types of branch protection features
113	BP_OPTION := standard
114	ENABLE_BTI := 1
115	ENABLE_PAUTH := 1
116else ifeq (${BRANCH_PROTECTION},2)
117	# Return address signing to its standard level
118	BP_OPTION := pac-ret
119	ENABLE_PAUTH := 1
120else ifeq (${BRANCH_PROTECTION},3)
121	# Extend the signing to include leaf functions
122	BP_OPTION := pac-ret+leaf
123	ENABLE_PAUTH := 1
124else ifeq (${BRANCH_PROTECTION},4)
125	# Turn on branch target identification mechanism
126	BP_OPTION := bti
127	ENABLE_BTI := 1
128else
129        $(error Unknown BRANCH_PROTECTION value ${BRANCH_PROTECTION})
130endif
131
132# USE_SPINLOCK_CAS requires AArch64 build
133ifeq (${USE_SPINLOCK_CAS},1)
134ifneq (${ARCH},aarch64)
135        $(error USE_SPINLOCK_CAS requires AArch64)
136else
137        $(info USE_SPINLOCK_CAS is an experimental feature)
138endif
139endif
140
141# USE_DEBUGFS experimental feature recommended only in debug builds
142ifeq (${USE_DEBUGFS},1)
143ifeq (${DEBUG},1)
144        $(warning DEBUGFS experimental feature is enabled.)
145else
146        $(warning DEBUGFS experimental, recommended in DEBUG builds ONLY)
147endif
148endif
149
150ifneq (${DECRYPTION_SUPPORT},none)
151ENC_ARGS += -f ${FW_ENC_STATUS}
152ENC_ARGS += -k ${ENC_KEY}
153ENC_ARGS += -n ${ENC_NONCE}
154FIP_DEPS += enctool
155FWU_FIP_DEPS += enctool
156endif
157
158################################################################################
159# Toolchain
160################################################################################
161
162HOSTCC			:=	gcc
163export HOSTCC
164
165CC			:=	${CROSS_COMPILE}gcc
166CPP			:=	${CROSS_COMPILE}cpp
167AS			:=	${CROSS_COMPILE}gcc
168AR			:=	${CROSS_COMPILE}ar
169LINKER			:=	${CROSS_COMPILE}ld
170OC			:=	${CROSS_COMPILE}objcopy
171OD			:=	${CROSS_COMPILE}objdump
172NM			:=	${CROSS_COMPILE}nm
173PP			:=	${CROSS_COMPILE}gcc -E
174DTC			:=	dtc
175
176# Use ${LD}.bfd instead if it exists (as absolute path or together with $PATH).
177ifneq ($(strip $(wildcard ${LD}.bfd) \
178	$(foreach dir,$(subst :, ,${PATH}),$(wildcard ${dir}/${LINKER}.bfd))),)
179LINKER			:=	${LINKER}.bfd
180endif
181
182ifeq (${ARM_ARCH_MAJOR},7)
183target32-directive	= 	-target arm-none-eabi
184# Will set march32-directive from platform configuration
185else
186target32-directive	= 	-target armv8a-none-eabi
187
188# Set the compiler's target architecture profile based on
189# ARM_ARCH_MAJOR ARM_ARCH_MINOR options
190ifeq (${ARM_ARCH_MINOR},0)
191march32-directive	= 	-march=armv${ARM_ARCH_MAJOR}-a
192march64-directive	= 	-march=armv${ARM_ARCH_MAJOR}-a
193else
194march32-directive	= 	-march=armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a
195march64-directive	= 	-march=armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a
196endif
197endif
198
199# Memory tagging is supported in architecture Armv8.5-A AArch64 and onwards
200ifeq ($(ARCH), aarch64)
201# Check if revision is greater than or equal to 8.5
202ifeq "8.5" "$(word 1, $(sort 8.5 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
203mem_tag_arch_support	= 	yes
204endif
205endif
206
207# Get architecture feature modifiers
208arch-features		=	${ARM_ARCH_FEATURE}
209
210# Enable required options for memory stack tagging.
211# Currently, these options are enabled only for clang and armclang compiler.
212ifeq (${SUPPORT_STACK_MEMTAG},yes)
213ifdef mem_tag_arch_support
214# Check for armclang and clang compilers
215ifneq ( ,$(filter $(notdir $(CC)),armclang clang))
216# Add "memtag" architecture feature modifier if not specified
217ifeq ( ,$(findstring memtag,$(arch-features)))
218arch-features       	:=       $(arch-features)+memtag
219endif	# memtag
220ifeq ($(notdir $(CC)),armclang)
221TF_CFLAGS		+=	-mmemtag-stack
222else ifeq ($(notdir $(CC)),clang)
223TF_CFLAGS		+=	-fsanitize=memtag
224endif	# armclang
225endif	# armclang clang
226else
227$(error "Error: stack memory tagging is not supported for architecture \
228	${ARCH},armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a")
229endif	# mem_tag_arch_support
230endif	# SUPPORT_STACK_MEMTAG
231
232# Set the compiler's architecture feature modifiers
233ifneq ($(arch-features), none)
234# Strip "none+" from arch-features
235arch-features		:=	$(subst none+,,$(arch-features))
236ifeq ($(ARCH), aarch32)
237march32-directive	:=	$(march32-directive)+$(arch-features)
238else
239march64-directive	:=	$(march64-directive)+$(arch-features)
240endif
241# Print features
242$(info Arm Architecture Features specified: $(subst +, ,$(arch-features)))
243endif	# arch-features
244
245# Determine if FEAT_RNG is supported
246ENABLE_FEAT_RNG		=	$(if $(findstring rng,${arch-features}),1,0)
247
248ifneq ($(findstring armclang,$(notdir $(CC))),)
249TF_CFLAGS_aarch32	=	-target arm-arm-none-eabi $(march32-directive)
250TF_CFLAGS_aarch64	=	-target aarch64-arm-none-eabi $(march64-directive)
251LD			=	$(LINKER)
252AS			=	$(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH))
253CPP			=	$(CC) -E $(TF_CFLAGS_$(ARCH))
254PP			=	$(CC) -E $(TF_CFLAGS_$(ARCH))
255else ifneq ($(findstring clang,$(notdir $(CC))),)
256CLANG_CCDIR		=	$(if $(filter-out ./,$(dir $(CC))),$(dir $(CC)),)
257TF_CFLAGS_aarch32	=	$(target32-directive) $(march32-directive)
258TF_CFLAGS_aarch64	=	-target aarch64-elf $(march64-directive)
259LD			=	$(CLANG_CCDIR)ld.lld
260ifeq (, $(shell which $(LD)))
261$(error "No $(LD) in PATH, make sure it is installed or set LD to a different linker")
262endif
263AS			=	$(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH))
264CPP			=	$(CC) -E
265PP			=	$(CC) -E
266else ifneq ($(findstring gcc,$(notdir $(CC))),)
267TF_CFLAGS_aarch32	=	$(march32-directive)
268TF_CFLAGS_aarch64	=	$(march64-directive)
269ifeq ($(ENABLE_LTO),1)
270	# Enable LTO only for aarch64
271	ifeq (${ARCH},aarch64)
272		LTO_CFLAGS	=	-flto
273		# Use gcc as a wrapper for the ld, recommended for LTO
274		LINKER		:=	${CROSS_COMPILE}gcc
275	endif
276endif
277LD			=	$(LINKER)
278else
279TF_CFLAGS_aarch32	=	$(march32-directive)
280TF_CFLAGS_aarch64	=	$(march64-directive)
281LD			=	$(LINKER)
282endif
283
284# Process Debug flag
285$(eval $(call add_define,DEBUG))
286ifneq (${DEBUG}, 0)
287        BUILD_TYPE	:=	debug
288        TF_CFLAGS	+= 	-g
289
290        ifneq ($(findstring clang,$(notdir $(CC))),)
291             ASFLAGS		+= 	-g
292        else
293             ASFLAGS		+= 	-g -Wa,--gdwarf-2
294        endif
295
296        # Use LOG_LEVEL_INFO by default for debug builds
297        LOG_LEVEL	:=	40
298else
299        BUILD_TYPE	:=	release
300        # Use LOG_LEVEL_NOTICE by default for release builds
301        LOG_LEVEL	:=	20
302endif
303
304# Default build string (git branch and commit)
305ifeq (${BUILD_STRING},)
306        BUILD_STRING  :=  $(shell git describe --always --dirty --tags 2> /dev/null)
307endif
308VERSION_STRING    :=  v${VERSION_MAJOR}.${VERSION_MINOR}(${BUILD_TYPE}):${BUILD_STRING}
309
310ifeq (${AARCH32_INSTRUCTION_SET},A32)
311TF_CFLAGS_aarch32	+=	-marm
312else ifeq (${AARCH32_INSTRUCTION_SET},T32)
313TF_CFLAGS_aarch32	+=	-mthumb
314else
315$(error Error: Unknown AArch32 instruction set ${AARCH32_INSTRUCTION_SET})
316endif
317
318TF_CFLAGS_aarch32	+=	-mno-unaligned-access
319TF_CFLAGS_aarch64	+=	-mgeneral-regs-only -mstrict-align
320
321ifneq (${BP_OPTION},none)
322TF_CFLAGS_aarch64	+=	-mbranch-protection=${BP_OPTION}
323endif
324
325ASFLAGS_aarch32		=	$(march32-directive)
326ASFLAGS_aarch64		=	$(march64-directive)
327
328# General warnings
329WARNINGS		:=	-Wall -Wmissing-include-dirs -Wunused	\
330				-Wdisabled-optimization	-Wvla -Wshadow	\
331				-Wno-unused-parameter -Wredundant-decls
332
333# Additional warnings
334# Level 1
335WARNING1 := -Wextra
336WARNING1 += -Wmissing-format-attribute
337WARNING1 += -Wmissing-prototypes
338WARNING1 += -Wold-style-definition
339
340# Level 2
341WARNING2 := -Waggregate-return
342WARNING2 += -Wcast-align
343WARNING2 += -Wnested-externs
344
345WARNING3 := -Wbad-function-cast
346WARNING3 += -Wcast-qual
347WARNING3 += -Wconversion
348WARNING3 += -Wpacked
349WARNING3 += -Wpointer-arith
350WARNING3 += -Wswitch-default
351
352ifeq (${W},1)
353WARNINGS += $(WARNING1)
354else ifeq (${W},2)
355WARNINGS += $(WARNING1) $(WARNING2)
356else ifeq (${W},3)
357WARNINGS += $(WARNING1) $(WARNING2) $(WARNING3)
358endif
359
360# Compiler specific warnings
361ifeq ($(findstring clang,$(notdir $(CC))),)
362# not using clang
363WARNINGS	+=		-Wunused-but-set-variable -Wmaybe-uninitialized	\
364				-Wpacked-bitfield-compat -Wshift-overflow=2 \
365				-Wlogical-op
366else
367# using clang
368WARNINGS	+=		-Wshift-overflow -Wshift-sign-overflow \
369				-Wlogical-op-parentheses
370endif
371
372ifneq (${E},0)
373ERRORS := -Werror
374endif
375
376CPPFLAGS		=	${DEFINES} ${INCLUDES} ${MBEDTLS_INC} -nostdinc	\
377				$(ERRORS) $(WARNINGS)
378ASFLAGS			+=	$(CPPFLAGS) $(ASFLAGS_$(ARCH))			\
379				-ffreestanding -Wa,--fatal-warnings
380TF_CFLAGS		+=	$(CPPFLAGS) $(TF_CFLAGS_$(ARCH))		\
381				-ffunction-sections -fdata-sections		\
382				-ffreestanding -fno-builtin -fno-common		\
383				-Os -std=gnu99
384
385ifeq (${SANITIZE_UB},on)
386TF_CFLAGS		+=	-fsanitize=undefined -fno-sanitize-recover
387endif
388ifeq (${SANITIZE_UB},trap)
389TF_CFLAGS		+=	-fsanitize=undefined -fno-sanitize-recover	\
390				-fsanitize-undefined-trap-on-error
391endif
392
393GCC_V_OUTPUT		:=	$(shell $(CC) -v 2>&1)
394
395# LD = armlink
396ifneq ($(findstring armlink,$(notdir $(LD))),)
397TF_LDFLAGS		+=	--diag_error=warning --lto_level=O1
398TF_LDFLAGS		+=	--remove --info=unused,unusedsymbols
399TF_LDFLAGS		+=	$(TF_LDFLAGS_$(ARCH))
400
401# LD = gcc (used when GCC LTO is enabled)
402else ifneq ($(findstring gcc,$(notdir $(LD))),)
403# Pass ld options with Wl or Xlinker switches
404TF_LDFLAGS		+=	-Wl,--fatal-warnings -O1
405TF_LDFLAGS		+=	-Wl,--gc-sections
406ifeq ($(ENABLE_LTO),1)
407	ifeq (${ARCH},aarch64)
408		TF_LDFLAGS	+=	-flto -fuse-linker-plugin
409	endif
410endif
411# GCC automatically adds fix-cortex-a53-843419 flag when used to link
412# which breaks some builds, so disable if errata fix is not explicitly enabled
413ifneq (${ERRATA_A53_843419},1)
414	TF_LDFLAGS	+= 	-mno-fix-cortex-a53-843419
415endif
416TF_LDFLAGS		+= 	-nostdlib
417TF_LDFLAGS		+=	$(subst --,-Xlinker --,$(TF_LDFLAGS_$(ARCH)))
418
419# LD = gcc-ld (ld) or llvm-ld (ld.lld) or other
420else
421TF_LDFLAGS		+=	--fatal-warnings -O1
422TF_LDFLAGS		+=	--gc-sections
423# ld.lld doesn't recognize the errata flags,
424# therefore don't add those in that case
425ifeq ($(findstring ld.lld,$(notdir $(LD))),)
426TF_LDFLAGS		+=	$(TF_LDFLAGS_$(ARCH))
427endif
428endif
429
430DTC_FLAGS		+=	-I dts -O dtb
431DTC_CPPFLAGS		+=	-P -nostdinc -Iinclude -Ifdts -undef \
432				-x assembler-with-cpp $(DEFINES)
433
434ifeq ($(MEASURED_BOOT),1)
435DTC_CPPFLAGS		+=	-DMEASURED_BOOT -DBL2_HASH_SIZE=${TCG_DIGEST_SIZE}
436endif
437
438################################################################################
439# Common sources and include directories
440################################################################################
441include lib/compiler-rt/compiler-rt.mk
442
443BL_COMMON_SOURCES	+=	common/bl_common.c			\
444				common/tf_log.c				\
445				common/${ARCH}/debug.S			\
446				drivers/console/multi_console.c		\
447				lib/${ARCH}/cache_helpers.S		\
448				lib/${ARCH}/misc_helpers.S		\
449				plat/common/plat_bl_common.c		\
450				plat/common/plat_log_common.c		\
451				plat/common/${ARCH}/plat_common.c	\
452				plat/common/${ARCH}/platform_helpers.S	\
453				${COMPILER_RT_SRCS}
454
455ifeq ($(notdir $(CC)),armclang)
456BL_COMMON_SOURCES	+=	lib/${ARCH}/armclang_printf.S
457endif
458
459ifeq (${SANITIZE_UB},on)
460BL_COMMON_SOURCES	+=	plat/common/ubsan.c
461endif
462
463INCLUDES		+=	-Iinclude				\
464				-Iinclude/arch/${ARCH}			\
465				-Iinclude/lib/cpus/${ARCH}		\
466				-Iinclude/lib/el3_runtime/${ARCH}	\
467				${PLAT_INCLUDES}			\
468				${SPD_INCLUDES}
469
470include common/backtrace/backtrace.mk
471
472################################################################################
473# Generic definitions
474################################################################################
475
476include ${MAKE_HELPERS_DIRECTORY}plat_helpers.mk
477
478ifeq (${BUILD_BASE},)
479     BUILD_BASE		:=	./build
480endif
481BUILD_PLAT		:=	$(abspath ${BUILD_BASE})/${PLAT}/${BUILD_TYPE}
482
483SPDS			:=	$(sort $(filter-out none, $(patsubst services/spd/%,%,$(wildcard services/spd/*))))
484
485# Platforms providing their own TBB makefile may override this value
486INCLUDE_TBBR_MK		:=	1
487
488
489################################################################################
490# Include SPD Makefile if one has been specified
491################################################################################
492
493ifneq (${SPD},none)
494    ifeq (${ARCH},aarch32)
495        $(error "Error: SPD is incompatible with AArch32.")
496    endif
497
498    ifdef EL3_PAYLOAD_BASE
499        $(warning "SPD and EL3_PAYLOAD_BASE are incompatible build options.")
500        $(warning "The SPD and its BL32 companion will be present but ignored.")
501    endif
502
503    ifeq (${SPD},spmd)
504        $(warning "SPMD is an experimental feature")
505        # SPMD is located in std_svc directory
506        SPD_DIR := std_svc
507
508        ifeq ($(SPMD_SPM_AT_SEL2),1)
509            ifeq ($(CTX_INCLUDE_EL2_REGS),0)
510                $(error SPMD with SPM at S-EL2 requires CTX_INCLUDE_EL2_REGS option)
511            endif
512        endif
513
514        ifeq ($(findstring optee_sp,$(ARM_SPMC_MANIFEST_DTS)),optee_sp)
515            DTC_CPPFLAGS	+=	-DOPTEE_SP_FW_CONFIG
516        endif
517    else
518        # All other SPDs in spd directory
519        SPD_DIR := spd
520    endif
521
522    # We expect to locate an spd.mk under the specified SPD directory
523    SPD_MAKE	:=	$(wildcard services/${SPD_DIR}/${SPD}/${SPD}.mk)
524
525    ifeq (${SPD_MAKE},)
526        $(error Error: No services/${SPD_DIR}/${SPD}/${SPD}.mk located)
527    endif
528    $(info Including ${SPD_MAKE})
529    include ${SPD_MAKE}
530
531    # If there's BL32 companion for the chosen SPD, we expect that the SPD's
532    # Makefile would set NEED_BL32 to "yes". In this case, the build system
533    # supports two mutually exclusive options:
534    # * BL32 is built from source: then BL32_SOURCES must contain the list
535    #   of source files to build BL32
536    # * BL32 is a prebuilt binary: then BL32 must point to the image file
537    #   that will be included in the FIP
538    # If both BL32_SOURCES and BL32 are defined, the binary takes precedence
539    # over the sources.
540endif
541
542################################################################################
543# Include the platform specific Makefile after the SPD Makefile (the platform
544# makefile may use all previous definitions in this file)
545################################################################################
546
547include ${PLAT_MAKEFILE_FULL}
548
549$(eval $(call MAKE_PREREQ_DIR,${BUILD_PLAT}))
550
551ifeq (${ARM_ARCH_MAJOR},7)
552include make_helpers/armv7-a-cpus.mk
553endif
554
555PIE_FOUND		:=	$(findstring --enable-default-pie,${GCC_V_OUTPUT})
556ifneq ($(PIE_FOUND),)
557	TF_CFLAGS	+=	-fno-PIE
558endif
559
560ifneq ($(findstring gcc,$(notdir $(LD))),)
561	PIE_LDFLAGS	+=	-Wl,-pie -Wl,--no-dynamic-linker
562else
563	PIE_LDFLAGS	+=	-pie --no-dynamic-linker
564endif
565
566ifeq ($(ENABLE_PIE),1)
567ifeq ($(BL2_AT_EL3),1)
568ifneq ($(BL2_IN_XIP_MEM),1)
569	BL2_CFLAGS	+=	-fpie
570	BL2_LDFLAGS	+=	$(PIE_LDFLAGS)
571endif
572endif
573	BL31_CFLAGS	+=	-fpie
574	BL31_LDFLAGS	+=	$(PIE_LDFLAGS)
575ifeq ($(ARCH),aarch64)
576	BL32_CFLAGS	+=	-fpie
577	BL32_LDFLAGS	+=	$(PIE_LDFLAGS)
578endif
579endif
580
581ifeq (${ARCH},aarch64)
582BL1_CPPFLAGS += -DIMAGE_AT_EL3
583ifeq ($(BL2_AT_EL3),1)
584BL2_CPPFLAGS += -DIMAGE_AT_EL3
585else
586BL2_CPPFLAGS += -DIMAGE_AT_EL1
587endif
588BL2U_CPPFLAGS += -DIMAGE_AT_EL1
589BL31_CPPFLAGS += -DIMAGE_AT_EL3
590BL32_CPPFLAGS += -DIMAGE_AT_EL1
591endif
592
593# Include the CPU specific operations makefile, which provides default
594# values for all CPU errata workarounds and CPU specific optimisations.
595# This can be overridden by the platform.
596include lib/cpus/cpu-ops.mk
597
598ifeq (${ARCH},aarch32)
599NEED_BL32 := yes
600
601################################################################################
602# Build `AARCH32_SP` as BL32 image for AArch32
603################################################################################
604ifneq (${AARCH32_SP},none)
605# We expect to locate an sp.mk under the specified AARCH32_SP directory
606AARCH32_SP_MAKE	:=	$(wildcard bl32/${AARCH32_SP}/${AARCH32_SP}.mk)
607
608ifeq (${AARCH32_SP_MAKE},)
609  $(error Error: No bl32/${AARCH32_SP}/${AARCH32_SP}.mk located)
610endif
611
612$(info Including ${AARCH32_SP_MAKE})
613include ${AARCH32_SP_MAKE}
614endif
615
616endif
617
618################################################################################
619# Include libc if not overridden
620################################################################################
621ifeq (${OVERRIDE_LIBC},0)
622include lib/libc/libc.mk
623endif
624
625################################################################################
626# Check incompatible options
627################################################################################
628
629ifdef EL3_PAYLOAD_BASE
630        ifdef PRELOADED_BL33_BASE
631                $(warning "PRELOADED_BL33_BASE and EL3_PAYLOAD_BASE are \
632                incompatible build options. EL3_PAYLOAD_BASE has priority.")
633        endif
634        ifneq (${GENERATE_COT},0)
635                $(error "GENERATE_COT and EL3_PAYLOAD_BASE are incompatible build options.")
636        endif
637        ifneq (${TRUSTED_BOARD_BOOT},0)
638                $(error "TRUSTED_BOARD_BOOT and EL3_PAYLOAD_BASE are incompatible build options.")
639        endif
640endif
641
642ifeq (${NEED_BL33},yes)
643        ifdef EL3_PAYLOAD_BASE
644                $(warning "BL33 image is not needed when option \
645                BL33_PAYLOAD_BASE is used and won't be added to the FIP file.")
646        endif
647        ifdef PRELOADED_BL33_BASE
648                $(warning "BL33 image is not needed when option \
649                PRELOADED_BL33_BASE is used and won't be added to the FIP \
650                file.")
651        endif
652endif
653
654# When building for systems with hardware-assisted coherency, there's no need to
655# use USE_COHERENT_MEM. Require that USE_COHERENT_MEM must be set to 0 too.
656ifeq ($(HW_ASSISTED_COHERENCY)-$(USE_COHERENT_MEM),1-1)
657$(error USE_COHERENT_MEM cannot be enabled with HW_ASSISTED_COHERENCY)
658endif
659
660#For now, BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is 1.
661ifeq ($(BL2_AT_EL3)-$(BL2_IN_XIP_MEM),0-1)
662$(error "BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is enabled")
663endif
664
665# For RAS_EXTENSION, require that EAs are handled in EL3 first
666ifeq ($(RAS_EXTENSION),1)
667    ifneq ($(HANDLE_EA_EL3_FIRST),1)
668        $(error For RAS_EXTENSION, HANDLE_EA_EL3_FIRST must also be 1)
669    endif
670endif
671
672# When FAULT_INJECTION_SUPPORT is used, require that RAS_EXTENSION is enabled
673ifeq ($(FAULT_INJECTION_SUPPORT),1)
674    ifneq ($(RAS_EXTENSION),1)
675        $(error For FAULT_INJECTION_SUPPORT, RAS_EXTENSION must also be 1)
676    endif
677endif
678
679# DYN_DISABLE_AUTH can be set only when TRUSTED_BOARD_BOOT=1
680ifeq ($(DYN_DISABLE_AUTH), 1)
681    ifeq (${TRUSTED_BOARD_BOOT}, 0)
682        $(error "TRUSTED_BOARD_BOOT must be enabled for DYN_DISABLE_AUTH to be set.")
683    endif
684endif
685
686# SDEI_IN_FCONF is only supported when SDEI_SUPPORT is enabled.
687ifeq ($(SDEI_SUPPORT)-$(SDEI_IN_FCONF),0-1)
688$(error "SDEI_IN_FCONF is an experimental feature and is only supported when \
689	SDEI_SUPPORT is enabled")
690endif
691
692ifeq ($(COT_DESC_IN_DTB),1)
693    $(info CoT in device tree is an experimental feature)
694endif
695
696# If pointer authentication is used in the firmware, make sure that all the
697# registers associated to it are also saved and restored.
698# Not doing it would leak the value of the keys used by EL3 to EL1 and S-EL1.
699ifeq ($(ENABLE_PAUTH),1)
700    ifeq ($(CTX_INCLUDE_PAUTH_REGS),0)
701        $(error Pointer Authentication requires CTX_INCLUDE_PAUTH_REGS=1)
702    endif
703endif
704
705ifeq ($(CTX_INCLUDE_PAUTH_REGS),1)
706    ifneq (${ARCH},aarch64)
707        $(error CTX_INCLUDE_PAUTH_REGS requires AArch64)
708    else
709        $(info CTX_INCLUDE_PAUTH_REGS is an experimental feature)
710    endif
711endif
712
713ifeq ($(ENABLE_PAUTH),1)
714    $(info Pointer Authentication is an experimental feature)
715endif
716
717ifeq ($(ENABLE_BTI),1)
718    $(info Branch Protection is an experimental feature)
719endif
720
721ifeq ($(CTX_INCLUDE_MTE_REGS),1)
722    ifneq (${ARCH},aarch64)
723        $(error CTX_INCLUDE_MTE_REGS requires AArch64)
724    else
725        $(info CTX_INCLUDE_MTE_REGS is an experimental feature)
726    endif
727endif
728
729ifeq ($(MEASURED_BOOT),1)
730    ifneq (${TRUSTED_BOARD_BOOT},1)
731        $(error MEASURED_BOOT requires TRUSTED_BOARD_BOOT=1)
732    else
733        $(info MEASURED_BOOT is an experimental feature)
734    endif
735endif
736
737ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1)
738    ifeq (${ALLOW_RO_XLAT_TABLES}, 1)
739        $(error "ALLOW_RO_XLAT_TABLES requires translation tables library v2")
740    endif
741endif
742
743ifneq (${DECRYPTION_SUPPORT},none)
744    ifeq (${TRUSTED_BOARD_BOOT}, 0)
745        $(error TRUSTED_BOARD_BOOT must be enabled for DECRYPTION_SUPPORT to be set)
746    else
747        $(info DECRYPTION_SUPPORT is an experimental feature)
748    endif
749endif
750
751################################################################################
752# Process platform overrideable behaviour
753################################################################################
754
755# Using BL2 implies that a BL33 image also needs to be supplied for the FIP and
756# Certificate generation tools. This flag can be overridden by the platform.
757ifdef BL2_SOURCES
758        ifdef EL3_PAYLOAD_BASE
759                # If booting an EL3 payload there is no need for a BL33 image
760                # in the FIP file.
761                NEED_BL33		:=	no
762        else
763                ifdef PRELOADED_BL33_BASE
764                        # If booting a BL33 preloaded image there is no need of
765                        # another one in the FIP file.
766                        NEED_BL33		:=	no
767                else
768                        NEED_BL33		?=	yes
769                endif
770        endif
771endif
772
773# If SCP_BL2 is given, we always want FIP to include it.
774ifdef SCP_BL2
775        NEED_SCP_BL2		:=	yes
776endif
777
778# For AArch32, BL31 is not currently supported.
779ifneq (${ARCH},aarch32)
780    ifdef BL31_SOURCES
781        # When booting an EL3 payload, there is no need to compile the BL31 image nor
782        # put it in the FIP.
783        ifndef EL3_PAYLOAD_BASE
784            NEED_BL31 := yes
785        endif
786    endif
787endif
788
789# Process TBB related flags
790ifneq (${GENERATE_COT},0)
791        # Common cert_create options
792        ifneq (${CREATE_KEYS},0)
793                $(eval CRT_ARGS += -n)
794                $(eval FWU_CRT_ARGS += -n)
795                ifneq (${SAVE_KEYS},0)
796                        $(eval CRT_ARGS += -k)
797                        $(eval FWU_CRT_ARGS += -k)
798                endif
799        endif
800        # Include TBBR makefile (unless the platform indicates otherwise)
801        ifeq (${INCLUDE_TBBR_MK},1)
802                include make_helpers/tbbr/tbbr_tools.mk
803        endif
804endif
805
806ifneq (${FIP_ALIGN},0)
807FIP_ARGS += --align ${FIP_ALIGN}
808endif
809
810################################################################################
811# Include libraries' Makefile that are used in all BL
812################################################################################
813
814include lib/stack_protector/stack_protector.mk
815
816################################################################################
817# Auxiliary tools (fiptool, cert_create, etc)
818################################################################################
819
820# Variables for use with Certificate Generation Tool
821CRTTOOLPATH		?=	tools/cert_create
822CRTTOOL			?=	${CRTTOOLPATH}/cert_create${BIN_EXT}
823
824# Variables for use with Firmware Encryption Tool
825ENCTOOLPATH		?=	tools/encrypt_fw
826ENCTOOL			?=	${ENCTOOLPATH}/encrypt_fw${BIN_EXT}
827
828# Variables for use with Firmware Image Package
829FIPTOOLPATH		?=	tools/fiptool
830FIPTOOL			?=	${FIPTOOLPATH}/fiptool${BIN_EXT}
831
832# Variables for use with sptool
833SPTOOLPATH		?=	tools/sptool
834SPTOOL			?=	${SPTOOLPATH}/sptool${BIN_EXT}
835SP_MK_GEN		?=	${SPTOOLPATH}/sp_mk_generator.py
836
837# Variables for use with ROMLIB
838ROMLIBPATH		?=	lib/romlib
839
840# Variable for use with Python
841PYTHON			?=	python3
842
843# Variables for use with PRINT_MEMORY_MAP
844PRINT_MEMORY_MAP_PATH		?=	tools/memory
845PRINT_MEMORY_MAP		?=	${PRINT_MEMORY_MAP_PATH}/print_memory_map.py
846
847# Variables for use with documentation build using Sphinx tool
848DOCS_PATH		?=	docs
849
850################################################################################
851# Include BL specific makefiles
852################################################################################
853ifdef BL1_SOURCES
854NEED_BL1 := yes
855include bl1/bl1.mk
856endif
857
858ifdef BL2_SOURCES
859NEED_BL2 := yes
860include bl2/bl2.mk
861endif
862
863ifdef BL2U_SOURCES
864NEED_BL2U := yes
865include bl2u/bl2u.mk
866endif
867
868ifeq (${NEED_BL31},yes)
869ifdef BL31_SOURCES
870include bl31/bl31.mk
871endif
872endif
873
874ifdef FDT_SOURCES
875NEED_FDT := yes
876endif
877
878################################################################################
879# Build options checks
880################################################################################
881
882$(eval $(call assert_booleans,\
883    $(sort \
884        ALLOW_RO_XLAT_TABLES \
885        COLD_BOOT_SINGLE_CPU \
886        CREATE_KEYS \
887        CTX_INCLUDE_AARCH32_REGS \
888        CTX_INCLUDE_FPREGS \
889        CTX_INCLUDE_PAUTH_REGS \
890        CTX_INCLUDE_MTE_REGS \
891        CTX_INCLUDE_EL2_REGS \
892        CTX_INCLUDE_NEVE_REGS \
893        DEBUG \
894        DISABLE_MTPMU \
895        DYN_DISABLE_AUTH \
896        EL3_EXCEPTION_HANDLING \
897        ENABLE_AMU \
898        ENABLE_ASSERTIONS \
899        ENABLE_MPAM_FOR_LOWER_ELS \
900        ENABLE_PIE \
901        ENABLE_PMF \
902        ENABLE_PSCI_STAT \
903        ENABLE_RUNTIME_INSTRUMENTATION \
904        ENABLE_SPE_FOR_LOWER_ELS \
905        ENABLE_SVE_FOR_NS \
906        ERROR_DEPRECATED \
907        FAULT_INJECTION_SUPPORT \
908        GENERATE_COT \
909        GICV2_G0_FOR_EL3 \
910        HANDLE_EA_EL3_FIRST \
911        HW_ASSISTED_COHERENCY \
912        INVERTED_MEMMAP \
913        MEASURED_BOOT \
914        NS_TIMER_SWITCH \
915        OVERRIDE_LIBC \
916        PL011_GENERIC_UART \
917        PROGRAMMABLE_RESET_ADDRESS \
918        PSCI_EXTENDED_STATE_ID \
919        RAS_EXTENSION \
920        RESET_TO_BL31 \
921        SAVE_KEYS \
922        SEPARATE_CODE_AND_RODATA \
923        SEPARATE_NOBITS_REGION \
924        SPIN_ON_BL1_EXIT \
925        SPM_MM \
926        SPMD_SPM_AT_SEL2 \
927        TRUSTED_BOARD_BOOT \
928        USE_COHERENT_MEM \
929        USE_DEBUGFS \
930        ARM_IO_IN_DTB \
931        SDEI_IN_FCONF \
932        SEC_INT_DESC_IN_FCONF \
933        USE_ROMLIB \
934        USE_TBBR_DEFS \
935        WARMBOOT_ENABLE_DCACHE_EARLY \
936        BL2_AT_EL3 \
937        BL2_IN_XIP_MEM \
938        BL2_INV_DCACHE \
939        USE_SPINLOCK_CAS \
940        ENCRYPT_BL31 \
941        ENCRYPT_BL32 \
942        ERRATA_SPECULATIVE_AT \
943        RAS_TRAP_LOWER_EL_ERR_ACCESS \
944        COT_DESC_IN_DTB \
945        USE_SP804_TIMER \
946        ENABLE_FEAT_RNG \
947)))
948
949$(eval $(call assert_numerics,\
950    $(sort \
951        ARM_ARCH_MAJOR \
952        ARM_ARCH_MINOR \
953        BRANCH_PROTECTION \
954        FW_ENC_STATUS \
955)))
956
957ifdef KEY_SIZE
958        $(eval $(call assert_numeric,KEY_SIZE))
959endif
960
961ifeq ($(filter $(SANITIZE_UB), on off trap),)
962        $(error "Invalid value for SANITIZE_UB: can be one of on, off, trap")
963endif
964
965################################################################################
966# Add definitions to the cpp preprocessor based on the current build options.
967# This is done after including the platform specific makefile to allow the
968# platform to overwrite the default options
969################################################################################
970
971$(eval $(call add_defines,\
972    $(sort \
973        ALLOW_RO_XLAT_TABLES \
974        ARM_ARCH_MAJOR \
975        ARM_ARCH_MINOR \
976        COLD_BOOT_SINGLE_CPU \
977        CTX_INCLUDE_AARCH32_REGS \
978        CTX_INCLUDE_FPREGS \
979        CTX_INCLUDE_PAUTH_REGS \
980        EL3_EXCEPTION_HANDLING \
981        CTX_INCLUDE_MTE_REGS \
982        CTX_INCLUDE_EL2_REGS \
983        CTX_INCLUDE_NEVE_REGS \
984        DECRYPTION_SUPPORT_${DECRYPTION_SUPPORT} \
985        DISABLE_MTPMU \
986        ENABLE_AMU \
987        ENABLE_ASSERTIONS \
988        ENABLE_BTI \
989        ENABLE_MPAM_FOR_LOWER_ELS \
990        ENABLE_PAUTH \
991        ENABLE_PIE \
992        ENABLE_PMF \
993        ENABLE_PSCI_STAT \
994        ENABLE_RUNTIME_INSTRUMENTATION \
995        ENABLE_SPE_FOR_LOWER_ELS \
996        ENABLE_SVE_FOR_NS \
997        ENCRYPT_BL31 \
998        ENCRYPT_BL32 \
999        ERROR_DEPRECATED \
1000        FAULT_INJECTION_SUPPORT \
1001        GICV2_G0_FOR_EL3 \
1002        HANDLE_EA_EL3_FIRST \
1003        HW_ASSISTED_COHERENCY \
1004        LOG_LEVEL \
1005        MEASURED_BOOT \
1006        NS_TIMER_SWITCH \
1007        PL011_GENERIC_UART \
1008        PLAT_${PLAT} \
1009        PROGRAMMABLE_RESET_ADDRESS \
1010        PSCI_EXTENDED_STATE_ID \
1011        RAS_EXTENSION \
1012        RESET_TO_BL31 \
1013        SEPARATE_CODE_AND_RODATA \
1014        SEPARATE_NOBITS_REGION \
1015        RECLAIM_INIT_CODE \
1016        SPD_${SPD} \
1017        SPIN_ON_BL1_EXIT \
1018        SPM_MM \
1019        SPMD_SPM_AT_SEL2 \
1020        TRUSTED_BOARD_BOOT \
1021        TRNG_SUPPORT \
1022        USE_COHERENT_MEM \
1023        USE_DEBUGFS \
1024        ARM_IO_IN_DTB \
1025        SDEI_IN_FCONF \
1026        SEC_INT_DESC_IN_FCONF \
1027        USE_ROMLIB \
1028        USE_TBBR_DEFS \
1029        WARMBOOT_ENABLE_DCACHE_EARLY \
1030        BL2_AT_EL3 \
1031        BL2_IN_XIP_MEM \
1032        BL2_INV_DCACHE \
1033        USE_SPINLOCK_CAS \
1034        ERRATA_SPECULATIVE_AT \
1035        RAS_TRAP_LOWER_EL_ERR_ACCESS \
1036        COT_DESC_IN_DTB \
1037        USE_SP804_TIMER \
1038        ENABLE_FEAT_RNG \
1039)))
1040
1041ifeq (${SANITIZE_UB},trap)
1042        $(eval $(call add_define,MONITOR_TRAPS))
1043endif
1044
1045# Define the EL3_PAYLOAD_BASE flag only if it is provided.
1046ifdef EL3_PAYLOAD_BASE
1047        $(eval $(call add_define,EL3_PAYLOAD_BASE))
1048else
1049        # Define the PRELOADED_BL33_BASE flag only if it is provided and
1050        # EL3_PAYLOAD_BASE is not defined, as it has priority.
1051        ifdef PRELOADED_BL33_BASE
1052                $(eval $(call add_define,PRELOADED_BL33_BASE))
1053        endif
1054endif
1055
1056# Define the DYN_DISABLE_AUTH flag only if set.
1057ifeq (${DYN_DISABLE_AUTH},1)
1058$(eval $(call add_define,DYN_DISABLE_AUTH))
1059endif
1060
1061ifneq ($(findstring armlink,$(notdir $(LD))),)
1062$(eval $(call add_define,USE_ARM_LINK))
1063endif
1064
1065# Generate and include sp_gen.mk if SPD is spmd and SP_LAYOUT_FILE is defined
1066ifeq (${SPD},spmd)
1067ifdef SP_LAYOUT_FILE
1068        ifeq (${SPMD_SPM_AT_SEL2},0)
1069            $(error "SPMD with SPM at S-EL1 does not require SP_LAYOUT_FILE")
1070        endif
1071        -include $(BUILD_PLAT)/sp_gen.mk
1072        FIP_DEPS += sp
1073        CRT_DEPS += sp
1074        NEED_SP_PKG := yes
1075else
1076        ifeq (${SPMD_SPM_AT_SEL2},1)
1077            $(error "SPMD with SPM at S-EL2 require SP_LAYOUT_FILE")
1078        endif
1079endif
1080endif
1081
1082################################################################################
1083# Build targets
1084################################################################################
1085
1086.PHONY:	all msg_start clean realclean distclean cscope locate-checkpatch checkcodebase checkpatch fiptool sptool fip sp fwu_fip certtool dtbs memmap doc enctool
1087.SUFFIXES:
1088
1089all: msg_start
1090
1091msg_start:
1092	@echo "Building ${PLAT}"
1093
1094ifeq (${ERROR_DEPRECATED},0)
1095# Check if deprecated declarations and cpp warnings should be treated as error or not.
1096ifneq ($(findstring clang,$(notdir $(CC))),)
1097    CPPFLAGS		+= 	-Wno-error=deprecated-declarations
1098else
1099    CPPFLAGS		+= 	-Wno-error=deprecated-declarations -Wno-error=cpp
1100endif
1101endif # !ERROR_DEPRECATED
1102
1103$(eval $(call MAKE_LIB_DIRS))
1104$(eval $(call MAKE_LIB,c))
1105
1106# Expand build macros for the different images
1107ifeq (${NEED_BL1},yes)
1108$(eval $(call MAKE_BL,1))
1109endif
1110
1111ifeq (${NEED_BL2},yes)
1112ifeq (${BL2_AT_EL3}, 0)
1113FIP_BL2_ARGS := tb-fw
1114endif
1115
1116$(if ${BL2}, $(eval $(call TOOL_ADD_IMG,bl2,--${FIP_BL2_ARGS})),\
1117	$(eval $(call MAKE_BL,2,${FIP_BL2_ARGS})))
1118endif
1119
1120ifeq (${NEED_SCP_BL2},yes)
1121$(eval $(call TOOL_ADD_IMG,scp_bl2,--scp-fw))
1122endif
1123
1124ifeq (${NEED_BL31},yes)
1125BL31_SOURCES += ${SPD_SOURCES}
1126# Sort BL31 source files to remove duplicates
1127BL31_SOURCES := $(sort ${BL31_SOURCES})
1128ifneq (${DECRYPTION_SUPPORT},none)
1129$(if ${BL31}, $(eval $(call TOOL_ADD_IMG,bl31,--soc-fw,,$(ENCRYPT_BL31))),\
1130	$(eval $(call MAKE_BL,31,soc-fw,,$(ENCRYPT_BL31))))
1131else
1132$(if ${BL31}, $(eval $(call TOOL_ADD_IMG,bl31,--soc-fw)),\
1133	$(eval $(call MAKE_BL,31,soc-fw)))
1134endif
1135endif
1136
1137# If a BL32 image is needed but neither BL32 nor BL32_SOURCES is defined, the
1138# build system will call TOOL_ADD_IMG to print a warning message and abort the
1139# process. Note that the dependency on BL32 applies to the FIP only.
1140ifeq (${NEED_BL32},yes)
1141# Sort BL32 source files to remove duplicates
1142BL32_SOURCES := $(sort ${BL32_SOURCES})
1143BUILD_BL32 := $(if $(BL32),,$(if $(BL32_SOURCES),1))
1144
1145ifneq (${DECRYPTION_SUPPORT},none)
1146$(if ${BUILD_BL32}, $(eval $(call MAKE_BL,32,tos-fw,,$(ENCRYPT_BL32))),\
1147	$(eval $(call TOOL_ADD_IMG,bl32,--tos-fw,,$(ENCRYPT_BL32))))
1148else
1149$(if ${BUILD_BL32}, $(eval $(call MAKE_BL,32,tos-fw)),\
1150	$(eval $(call TOOL_ADD_IMG,bl32,--tos-fw)))
1151endif
1152endif
1153
1154# Add the BL33 image if required by the platform
1155ifeq (${NEED_BL33},yes)
1156$(eval $(call TOOL_ADD_IMG,bl33,--nt-fw))
1157endif
1158
1159ifeq (${NEED_BL2U},yes)
1160$(if ${BL2U}, $(eval $(call TOOL_ADD_IMG,bl2u,--ap-fwu-cfg,FWU_)),\
1161	$(eval $(call MAKE_BL,2u,ap-fwu-cfg,FWU_)))
1162endif
1163
1164# Expand build macros for the different images
1165ifeq (${NEED_FDT},yes)
1166    $(eval $(call MAKE_DTBS,$(BUILD_PLAT)/fdts,$(FDT_SOURCES)))
1167endif
1168
1169# Add Secure Partition packages
1170ifeq (${NEED_SP_PKG},yes)
1171$(BUILD_PLAT)/sp_gen.mk: ${SP_MK_GEN} ${SP_LAYOUT_FILE} | ${BUILD_PLAT}
1172	${Q}${PYTHON} "$<" "$@" $(filter-out $<,$^) $(BUILD_PLAT) ${COT}
1173sp: $(SPTOOL) $(DTBS) $(BUILD_PLAT)/sp_gen.mk
1174	${Q}$(SPTOOL) $(SPTOOL_ARGS)
1175	@${ECHO_BLANK_LINE}
1176	@echo "Built SP Images successfully"
1177	@${ECHO_BLANK_LINE}
1178endif
1179
1180locate-checkpatch:
1181ifndef CHECKPATCH
1182	$(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/scripts/checkpatch.pl")
1183else
1184ifeq (,$(wildcard ${CHECKPATCH}))
1185	$(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/scripts/checkpatch.pl")
1186endif
1187endif
1188
1189clean:
1190	@echo "  CLEAN"
1191	$(call SHELL_REMOVE_DIR,${BUILD_PLAT})
1192ifdef UNIX_MK
1193	${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
1194else
1195# Clear the MAKEFLAGS as we do not want
1196# to pass the gnumake flags to nmake.
1197	${Q}set MAKEFLAGS= && ${MSVC_NMAKE} /nologo /f ${FIPTOOLPATH}/Makefile.msvc FIPTOOLPATH=$(subst /,\,$(FIPTOOLPATH)) FIPTOOL=$(subst /,\,$(FIPTOOL)) clean
1198endif
1199	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
1200	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${ENCTOOLPATH} clean
1201	${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean
1202
1203realclean distclean:
1204	@echo "  REALCLEAN"
1205	$(call SHELL_REMOVE_DIR,${BUILD_BASE})
1206	$(call SHELL_DELETE_ALL, ${CURDIR}/cscope.*)
1207ifdef UNIX_MK
1208	${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
1209else
1210# Clear the MAKEFLAGS as we do not want
1211# to pass the gnumake flags to nmake.
1212	${Q}set MAKEFLAGS= && ${MSVC_NMAKE} /nologo /f ${FIPTOOLPATH}/Makefile.msvc FIPTOOLPATH=$(subst /,\,$(FIPTOOLPATH)) FIPTOOL=$(subst /,\,$(FIPTOOL)) realclean
1213endif
1214	${Q}${MAKE} --no-print-directory -C ${SPTOOLPATH} clean
1215	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
1216	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${ENCTOOLPATH} realclean
1217	${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean
1218
1219checkcodebase:		locate-checkpatch
1220	@echo "  CHECKING STYLE"
1221	@if test -d .git ; then						\
1222		git ls-files | grep -E -v 'libfdt|libc|docs|\.rst' |	\
1223		while read GIT_FILE ;					\
1224		do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ;	\
1225		done ;							\
1226	else								\
1227		 find . -type f -not -iwholename "*.git*"		\
1228		 -not -iwholename "*build*"				\
1229		 -not -iwholename "*libfdt*"				\
1230		 -not -iwholename "*libc*"				\
1231		 -not -iwholename "*docs*"				\
1232		 -not -iwholename "*.rst"				\
1233		 -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ;	\
1234	fi
1235
1236checkpatch:		locate-checkpatch
1237	@echo "  CHECKING STYLE"
1238	@if test -n "${CHECKPATCH_OPTS}"; then				\
1239		echo "    with ${CHECKPATCH_OPTS} option(s)";		\
1240	fi
1241	${Q}COMMON_COMMIT=$$(git merge-base HEAD ${BASE_COMMIT});	\
1242	for commit in `git rev-list $$COMMON_COMMIT..HEAD`; do		\
1243		printf "\n[*] Checking style of '$$commit'\n\n";	\
1244		git log --format=email "$$commit~..$$commit"		\
1245			-- ${CHECK_PATHS} |				\
1246			${CHECKPATCH} ${CHECKPATCH_OPTS} - || true;	\
1247		git diff --format=email "$$commit~..$$commit"		\
1248			-- ${CHECK_PATHS} |				\
1249			${CHECKPATCH}  ${CHECKPATCH_OPTS} - || true;	\
1250	done
1251
1252certtool: ${CRTTOOL}
1253
1254${CRTTOOL}: FORCE
1255	${Q}${MAKE} PLAT=${PLAT} USE_TBBR_DEFS=${USE_TBBR_DEFS} COT=${COT} OPENSSL_DIR=${OPENSSL_DIR} CRTTOOL=${CRTTOOL} --no-print-directory -C ${CRTTOOLPATH}
1256	@${ECHO_BLANK_LINE}
1257	@echo "Built $@ successfully"
1258	@${ECHO_BLANK_LINE}
1259
1260ifneq (${GENERATE_COT},0)
1261certificates: ${CRT_DEPS} ${CRTTOOL}
1262	${Q}${CRTTOOL} ${CRT_ARGS}
1263	@${ECHO_BLANK_LINE}
1264	@echo "Built $@ successfully"
1265	@echo "Certificates can be found in ${BUILD_PLAT}"
1266	@${ECHO_BLANK_LINE}
1267endif
1268
1269${BUILD_PLAT}/${FIP_NAME}: ${FIP_DEPS} ${FIPTOOL}
1270	$(eval ${CHECK_FIP_CMD})
1271	${Q}${FIPTOOL} create ${FIP_ARGS} $@
1272	${Q}${FIPTOOL} info $@
1273	@${ECHO_BLANK_LINE}
1274	@echo "Built $@ successfully"
1275	@${ECHO_BLANK_LINE}
1276
1277ifneq (${GENERATE_COT},0)
1278fwu_certificates: ${FWU_CRT_DEPS} ${CRTTOOL}
1279	${Q}${CRTTOOL} ${FWU_CRT_ARGS}
1280	@${ECHO_BLANK_LINE}
1281	@echo "Built $@ successfully"
1282	@echo "FWU certificates can be found in ${BUILD_PLAT}"
1283	@${ECHO_BLANK_LINE}
1284endif
1285
1286${BUILD_PLAT}/${FWU_FIP_NAME}: ${FWU_FIP_DEPS} ${FIPTOOL}
1287	$(eval ${CHECK_FWU_FIP_CMD})
1288	${Q}${FIPTOOL} create ${FWU_FIP_ARGS} $@
1289	${Q}${FIPTOOL} info $@
1290	@${ECHO_BLANK_LINE}
1291	@echo "Built $@ successfully"
1292	@${ECHO_BLANK_LINE}
1293
1294fiptool: ${FIPTOOL}
1295fip: ${BUILD_PLAT}/${FIP_NAME}
1296fwu_fip: ${BUILD_PLAT}/${FWU_FIP_NAME}
1297
1298${FIPTOOL}: FORCE
1299	@${ECHO_BLANK_LINE}
1300	@echo "Building $@"
1301ifdef UNIX_MK
1302	${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" FIPTOOL=${FIPTOOL} --no-print-directory -C ${FIPTOOLPATH}
1303else
1304# Clear the MAKEFLAGS as we do not want
1305# to pass the gnumake flags to nmake.
1306	${Q}set MAKEFLAGS= && ${MSVC_NMAKE} /nologo /f ${FIPTOOLPATH}/Makefile.msvc FIPTOOLPATH=$(subst /,\,$(FIPTOOLPATH)) FIPTOOL=$(subst /,\,$(FIPTOOL))
1307endif
1308	@${ECHO_BLANK_LINE}
1309
1310sptool: ${SPTOOL}
1311${SPTOOL}: FORCE
1312	${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" SPTOOL=${SPTOOL} --no-print-directory -C ${SPTOOLPATH}
1313
1314romlib.bin: libraries FORCE
1315	${Q}${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
1316
1317# Call print_memory_map tool
1318memmap: all
1319	${Q}${PYTHON} ${PRINT_MEMORY_MAP} ${BUILD_PLAT} ${INVERTED_MEMMAP}
1320
1321doc:
1322	@echo "  BUILD DOCUMENTATION"
1323	${Q}${MAKE} --no-print-directory -C ${DOCS_PATH} html
1324
1325enctool: ${ENCTOOL}
1326
1327${ENCTOOL}: FORCE
1328	${Q}${MAKE} PLAT=${PLAT} BUILD_INFO=0 OPENSSL_DIR=${OPENSSL_DIR} ENCTOOL=${ENCTOOL} --no-print-directory -C ${ENCTOOLPATH}
1329	@${ECHO_BLANK_LINE}
1330	@echo "Built $@ successfully"
1331	@${ECHO_BLANK_LINE}
1332
1333cscope:
1334	@echo "  CSCOPE"
1335	${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files
1336	${Q}cscope -b -q -k
1337
1338help:
1339	@echo "usage: ${MAKE} [PLAT=<platform>] [OPTIONS] [TARGET]"
1340	@echo ""
1341	@echo "PLAT is used to specify which platform you wish to build."
1342	@echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}"
1343	@echo ""
1344	@echo "platform = ${PLATFORM_LIST}"
1345	@echo ""
1346	@echo "Please refer to the User Guide for a list of all supported options."
1347	@echo "Note that the build system doesn't track dependencies for build "
1348	@echo "options. Therefore, if any of the build options are changed "
1349	@echo "from a previous build, a clean build must be performed."
1350	@echo ""
1351	@echo "Supported Targets:"
1352	@echo "  all            Build all individual bootloader binaries"
1353	@echo "  bl1            Build the BL1 binary"
1354	@echo "  bl2            Build the BL2 binary"
1355	@echo "  bl2u           Build the BL2U binary"
1356	@echo "  bl31           Build the BL31 binary"
1357	@echo "  bl32           Build the BL32 binary. If ARCH=aarch32, then "
1358	@echo "                 this builds secure payload specified by AARCH32_SP"
1359	@echo "  certificates   Build the certificates (requires 'GENERATE_COT=1')"
1360	@echo "  fip            Build the Firmware Image Package (FIP)"
1361	@echo "  fwu_fip        Build the FWU Firmware Image Package (FIP)"
1362	@echo "  checkcodebase  Check the coding style of the entire source tree"
1363	@echo "  checkpatch     Check the coding style on changes in the current"
1364	@echo "                 branch against BASE_COMMIT (default origin/master)"
1365	@echo "  clean          Clean the build for the selected platform"
1366	@echo "  cscope         Generate cscope index"
1367	@echo "  distclean      Remove all build artifacts for all platforms"
1368	@echo "  certtool       Build the Certificate generation tool"
1369	@echo "  enctool        Build the Firmware encryption tool"
1370	@echo "  fiptool        Build the Firmware Image Package (FIP) creation tool"
1371	@echo "  sp             Build the Secure Partition Packages"
1372	@echo "  sptool         Build the Secure Partition Package creation tool"
1373	@echo "  dtbs           Build the Device Tree Blobs (if required for the platform)"
1374	@echo "  memmap         Print the memory map of the built binaries"
1375	@echo "  doc            Build html based documentation using Sphinx tool"
1376	@echo ""
1377	@echo "Note: most build targets require PLAT to be set to a specific platform."
1378	@echo ""
1379	@echo "example: build all targets for the FVP platform:"
1380	@echo "  CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all"
1381
1382.PHONY: FORCE
1383FORCE:;
1384