xref: /rk3399_ARM-atf/Makefile (revision b857b833f67e3615e62e97352c1806adc0d94bbc)
1#
2# Copyright (c) 2013-2020, 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			:= 2
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_LIB_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
43					include/lib/libfdt		\
44					include/lib/libc,		\
45					$(wildcard include/lib/*)))
46INC_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
47					include/lib,			\
48					$(wildcard include/*)))
49LIB_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
50					lib/compiler-rt			\
51					lib/libfdt%			\
52					lib/libc,			\
53					$(wildcard lib/*)))
54ROOT_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
55					lib				\
56					include				\
57					docs				\
58					%.rst,				\
59					$(wildcard *)))
60CHECK_PATHS		:=	${ROOT_DIRS_TO_CHECK}			\
61				${INC_DIRS_TO_CHECK}			\
62				${INC_LIB_DIRS_TO_CHECK}		\
63				${LIB_DIRS_TO_CHECK}
64
65
66################################################################################
67# Process build options
68################################################################################
69
70# Verbose flag
71ifeq (${V},0)
72        Q:=@
73        ECHO:=@echo
74        CHECKCODE_ARGS	+=	--no-summary --terse
75else
76        Q:=
77        ECHO:=$(ECHO_QUIET)
78endif
79
80ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),)
81        Q:=@
82        ECHO:=$(ECHO_QUIET)
83endif
84
85export Q ECHO
86
87# Process Debug flag
88$(eval $(call add_define,DEBUG))
89ifneq (${DEBUG}, 0)
90        BUILD_TYPE	:=	debug
91        TF_CFLAGS	+= 	-g
92
93        ifneq ($(findstring clang,$(notdir $(CC))),)
94             ASFLAGS		+= 	-g
95        else
96             ASFLAGS		+= 	-g -Wa,--gdwarf-2
97        endif
98
99        # Use LOG_LEVEL_INFO by default for debug builds
100        LOG_LEVEL	:=	40
101else
102        BUILD_TYPE	:=	release
103        # Use LOG_LEVEL_NOTICE by default for release builds
104        LOG_LEVEL	:=	20
105endif
106
107# Default build string (git branch and commit)
108ifeq (${BUILD_STRING},)
109        BUILD_STRING	:=	$(shell git describe --always --dirty --tags 2> /dev/null)
110endif
111VERSION_STRING		:=	v${VERSION_MAJOR}.${VERSION_MINOR}(${BUILD_TYPE}):${BUILD_STRING}
112
113# The cert_create tool cannot generate certificates individually, so we use the
114# target 'certificates' to create them all
115ifneq (${GENERATE_COT},0)
116        FIP_DEPS += certificates
117        FWU_FIP_DEPS += fwu_certificates
118endif
119
120# Process BRANCH_PROTECTION value and set
121# Pointer Authentication and Branch Target Identification flags
122ifeq (${BRANCH_PROTECTION},0)
123	# Default value turns off all types of branch protection
124	BP_OPTION := none
125else ifneq (${ARCH},aarch64)
126        $(error BRANCH_PROTECTION requires AArch64)
127else ifeq (${BRANCH_PROTECTION},1)
128	# Enables all types of branch protection features
129	BP_OPTION := standard
130	ENABLE_BTI := 1
131	ENABLE_PAUTH := 1
132else ifeq (${BRANCH_PROTECTION},2)
133	# Return address signing to its standard level
134	BP_OPTION := pac-ret
135	ENABLE_PAUTH := 1
136else ifeq (${BRANCH_PROTECTION},3)
137	# Extend the signing to include leaf functions
138	BP_OPTION := pac-ret+leaf
139	ENABLE_PAUTH := 1
140else
141        $(error Unknown BRANCH_PROTECTION value ${BRANCH_PROTECTION})
142endif
143
144# USE_SPINLOCK_CAS requires AArch64 build
145ifeq (${USE_SPINLOCK_CAS},1)
146ifneq (${ARCH},aarch64)
147        $(error USE_SPINLOCK_CAS requires AArch64)
148else
149        $(info USE_SPINLOCK_CAS is an experimental feature)
150endif
151endif
152
153# USE_DEBUGFS experimental feature recommended only in debug builds
154ifeq (${USE_DEBUGFS},1)
155ifeq (${DEBUG},1)
156        $(warning DEBUGFS experimental feature is enabled.)
157else
158        $(warning DEBUGFS experimental, recommended in DEBUG builds ONLY)
159endif
160endif
161
162################################################################################
163# Toolchain
164################################################################################
165
166HOSTCC			:=	gcc
167export HOSTCC
168
169CC			:=	${CROSS_COMPILE}gcc
170CPP			:=	${CROSS_COMPILE}cpp
171AS			:=	${CROSS_COMPILE}gcc
172AR			:=	${CROSS_COMPILE}ar
173LINKER			:=	${CROSS_COMPILE}ld
174OC			:=	${CROSS_COMPILE}objcopy
175OD			:=	${CROSS_COMPILE}objdump
176NM			:=	${CROSS_COMPILE}nm
177PP			:=	${CROSS_COMPILE}gcc -E
178DTC			:=	dtc
179
180# Use ${LD}.bfd instead if it exists (as absolute path or together with $PATH).
181ifneq ($(strip $(wildcard ${LD}.bfd) \
182	$(foreach dir,$(subst :, ,${PATH}),$(wildcard ${dir}/${LINKER}.bfd))),)
183LINKER			:=	${LINKER}.bfd
184endif
185
186ifeq (${ARM_ARCH_MAJOR},7)
187target32-directive	= 	-target arm-none-eabi
188# Will set march32-directive from platform configuration
189else
190target32-directive	= 	-target armv8a-none-eabi
191
192# Set the compiler's target architecture profile based on ARM_ARCH_MINOR option
193ifeq (${ARM_ARCH_MINOR},0)
194march32-directive	= 	-march=armv8-a
195march64-directive	= 	-march=armv8-a
196else
197march32-directive	= 	-march=armv8.${ARM_ARCH_MINOR}-a
198march64-directive	= 	-march=armv8.${ARM_ARCH_MINOR}-a
199endif
200endif
201
202ifneq ($(findstring armclang,$(notdir $(CC))),)
203TF_CFLAGS_aarch32	=	-target arm-arm-none-eabi $(march32-directive)
204TF_CFLAGS_aarch64	=	-target aarch64-arm-none-eabi $(march64-directive)
205LD			=	$(LINKER)
206AS			=	$(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH))
207CPP			=	$(CC) -E $(TF_CFLAGS_$(ARCH))
208PP			=	$(CC) -E $(TF_CFLAGS_$(ARCH))
209else ifneq ($(findstring clang,$(notdir $(CC))),)
210CLANG_CCDIR		=	$(if $(filter-out ./,$(dir $(CC))),$(dir $(CC)),)
211TF_CFLAGS_aarch32	=	$(target32-directive) $(march32-directive)
212TF_CFLAGS_aarch64	=	-target aarch64-elf $(march64-directive)
213LD			=	$(CLANG_CCDIR)ld.lld
214ifeq (, $(shell which $(LD)))
215$(error "No $(LD) in PATH, make sure it is installed or set LD to a different linker")
216endif
217AS			=	$(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH))
218CPP			=	$(CC) -E
219PP			=	$(CC) -E
220else ifneq ($(findstring gcc,$(notdir $(CC))),)
221TF_CFLAGS_aarch32	=	$(march32-directive)
222TF_CFLAGS_aarch64	=	$(march64-directive)
223ifeq ($(ENABLE_LTO),1)
224	# Enable LTO only for aarch64
225	ifeq (${ARCH},aarch64)
226		LTO_CFLAGS	=	-flto
227		# Use gcc as a wrapper for the ld, recommended for LTO
228		LINKER		:=	${CROSS_COMPILE}gcc
229	endif
230endif
231LD			=	$(LINKER)
232else
233TF_CFLAGS_aarch32	=	$(march32-directive)
234TF_CFLAGS_aarch64	=	$(march64-directive)
235LD			=	$(LINKER)
236endif
237
238ifeq (${AARCH32_INSTRUCTION_SET},A32)
239TF_CFLAGS_aarch32	+=	-marm
240else ifeq (${AARCH32_INSTRUCTION_SET},T32)
241TF_CFLAGS_aarch32	+=	-mthumb
242else
243$(error Error: Unknown AArch32 instruction set ${AARCH32_INSTRUCTION_SET})
244endif
245
246TF_CFLAGS_aarch32	+=	-mno-unaligned-access
247TF_CFLAGS_aarch64	+=	-mgeneral-regs-only -mstrict-align
248
249ifneq (${BP_OPTION},none)
250TF_CFLAGS_aarch64	+=	-mbranch-protection=${BP_OPTION}
251endif
252
253ASFLAGS_aarch32		=	$(march32-directive)
254ASFLAGS_aarch64		=	$(march64-directive)
255
256# General warnings
257WARNINGS		:=	-Wall -Wmissing-include-dirs -Wunused	\
258				-Wdisabled-optimization	-Wvla -Wshadow	\
259				-Wno-unused-parameter -Wredundant-decls
260
261# Additional warnings
262# Level 1
263WARNING1 := -Wextra
264WARNING1 += -Wmissing-format-attribute
265WARNING1 += -Wmissing-prototypes
266WARNING1 += -Wold-style-definition
267
268# Level 2
269WARNING2 := -Waggregate-return
270WARNING2 += -Wcast-align
271WARNING2 += -Wnested-externs
272
273WARNING3 := -Wbad-function-cast
274WARNING3 += -Wcast-qual
275WARNING3 += -Wconversion
276WARNING3 += -Wpacked
277WARNING3 += -Wpointer-arith
278WARNING3 += -Wswitch-default
279
280ifeq (${W},1)
281WARNINGS += $(WARNING1)
282else ifeq (${W},2)
283WARNINGS += $(WARNING1) $(WARNING2)
284else ifeq (${W},3)
285WARNINGS += $(WARNING1) $(WARNING2) $(WARNING3)
286endif
287
288# Compiler specific warnings
289ifeq ($(findstring clang,$(notdir $(CC))),)
290# not using clang
291WARNINGS	+=		-Wunused-but-set-variable -Wmaybe-uninitialized	\
292				-Wpacked-bitfield-compat -Wshift-overflow=2 \
293				-Wlogical-op
294else
295# using clang
296WARNINGS	+=		-Wshift-overflow -Wshift-sign-overflow \
297				-Wlogical-op-parentheses
298endif
299
300ifneq (${E},0)
301ERRORS := -Werror
302endif
303
304CPPFLAGS		=	${DEFINES} ${INCLUDES} ${MBEDTLS_INC} -nostdinc	\
305				$(ERRORS) $(WARNINGS)
306ASFLAGS			+=	$(CPPFLAGS) $(ASFLAGS_$(ARCH))			\
307				-ffreestanding -Wa,--fatal-warnings
308TF_CFLAGS		+=	$(CPPFLAGS) $(TF_CFLAGS_$(ARCH))		\
309				-ffunction-sections -fdata-sections		\
310				-ffreestanding -fno-builtin -fno-common		\
311				-Os -std=gnu99
312
313ifeq (${SANITIZE_UB},on)
314TF_CFLAGS		+=	-fsanitize=undefined -fno-sanitize-recover
315endif
316ifeq (${SANITIZE_UB},trap)
317TF_CFLAGS		+=	-fsanitize=undefined -fno-sanitize-recover	\
318				-fsanitize-undefined-trap-on-error
319endif
320
321GCC_V_OUTPUT		:=	$(shell $(CC) -v 2>&1)
322
323# LD = armlink
324ifneq ($(findstring armlink,$(notdir $(LD))),)
325TF_LDFLAGS		+=	--diag_error=warning --lto_level=O1
326TF_LDFLAGS		+=	--remove --info=unused,unusedsymbols
327TF_LDFLAGS		+=	$(TF_LDFLAGS_$(ARCH))
328
329# LD = gcc (used when GCC LTO is enabled)
330else ifneq ($(findstring gcc,$(notdir $(LD))),)
331# Pass ld options with Wl or Xlinker switches
332TF_LDFLAGS		+=	-Wl,--fatal-warnings -O1
333TF_LDFLAGS		+=	-Wl,--gc-sections
334ifeq ($(ENABLE_LTO),1)
335	ifeq (${ARCH},aarch64)
336		TF_LDFLAGS	+=	-flto -fuse-linker-plugin
337	endif
338endif
339# GCC automatically adds fix-cortex-a53-843419 flag when used to link
340# which breaks some builds, so disable if errata fix is not explicitly enabled
341ifneq (${ERRATA_A53_843419},1)
342	TF_LDFLAGS	+= 	-mno-fix-cortex-a53-843419
343endif
344TF_LDFLAGS		+= 	-nostdlib
345TF_LDFLAGS		+=	$(subst --,-Xlinker --,$(TF_LDFLAGS_$(ARCH)))
346
347# LD = gcc-ld (ld) or llvm-ld (ld.lld) or other
348else
349TF_LDFLAGS		+=	--fatal-warnings -O1
350TF_LDFLAGS		+=	--gc-sections
351# ld.lld doesn't recognize the errata flags,
352# therefore don't add those in that case
353ifeq ($(findstring ld.lld,$(notdir $(LD))),)
354TF_LDFLAGS		+=	$(TF_LDFLAGS_$(ARCH))
355endif
356endif
357
358DTC_FLAGS		+=	-I dts -O dtb
359DTC_CPPFLAGS		+=	-P -nostdinc -Iinclude -Ifdts -undef -x assembler-with-cpp
360
361################################################################################
362# Common sources and include directories
363################################################################################
364include lib/compiler-rt/compiler-rt.mk
365
366BL_COMMON_SOURCES	+=	common/bl_common.c			\
367				common/tf_log.c				\
368				common/${ARCH}/debug.S			\
369				drivers/console/multi_console.c		\
370				lib/${ARCH}/cache_helpers.S		\
371				lib/${ARCH}/misc_helpers.S		\
372				plat/common/plat_bl_common.c		\
373				plat/common/plat_log_common.c		\
374				plat/common/${ARCH}/plat_common.c	\
375				plat/common/${ARCH}/platform_helpers.S	\
376				${COMPILER_RT_SRCS}
377
378ifeq ($(notdir $(CC)),armclang)
379BL_COMMON_SOURCES	+=	lib/${ARCH}/armclang_printf.S
380endif
381
382ifeq (${SANITIZE_UB},on)
383BL_COMMON_SOURCES	+=	plat/common/ubsan.c
384endif
385
386INCLUDES		+=	-Iinclude				\
387				-Iinclude/arch/${ARCH}			\
388				-Iinclude/lib/cpus/${ARCH}		\
389				-Iinclude/lib/el3_runtime/${ARCH}	\
390				${PLAT_INCLUDES}			\
391				${SPD_INCLUDES}
392
393include common/backtrace/backtrace.mk
394
395################################################################################
396# Generic definitions
397################################################################################
398
399include ${MAKE_HELPERS_DIRECTORY}plat_helpers.mk
400
401BUILD_BASE		:=	./build
402BUILD_PLAT		:=	${BUILD_BASE}/${PLAT}/${BUILD_TYPE}
403
404SPDS			:=	$(sort $(filter-out none, $(patsubst services/spd/%,%,$(wildcard services/spd/*))))
405
406# Platforms providing their own TBB makefile may override this value
407INCLUDE_TBBR_MK		:=	1
408
409
410################################################################################
411# Include SPD Makefile if one has been specified
412################################################################################
413
414ifneq (${SPD},none)
415ifeq (${ARCH},aarch32)
416        $(error "Error: SPD is incompatible with AArch32.")
417endif
418ifdef EL3_PAYLOAD_BASE
419        $(warning "SPD and EL3_PAYLOAD_BASE are incompatible build options.")
420        $(warning "The SPD and its BL32 companion will be present but ignored.")
421endif
422	ifeq (${SPD},spmd)
423		# SPMD is located in std_svc directory
424		SPD_DIR := std_svc
425	else
426		# All other SPDs in spd directory
427		SPD_DIR := spd
428	endif
429
430	# We expect to locate an spd.mk under the specified SPD directory
431	SPD_MAKE	:=	$(wildcard services/${SPD_DIR}/${SPD}/${SPD}.mk)
432
433
434        ifeq (${SPD_MAKE},)
435                $(error Error: No services/${SPD_DIR}/${SPD}/${SPD}.mk located)
436        endif
437        $(info Including ${SPD_MAKE})
438        include ${SPD_MAKE}
439
440        # If there's BL32 companion for the chosen SPD, we expect that the SPD's
441        # Makefile would set NEED_BL32 to "yes". In this case, the build system
442        # supports two mutually exclusive options:
443        # * BL32 is built from source: then BL32_SOURCES must contain the list
444        #   of source files to build BL32
445        # * BL32 is a prebuilt binary: then BL32 must point to the image file
446        #   that will be included in the FIP
447        # If both BL32_SOURCES and BL32 are defined, the binary takes precedence
448        # over the sources.
449endif
450
451################################################################################
452# Include the platform specific Makefile after the SPD Makefile (the platform
453# makefile may use all previous definitions in this file)
454################################################################################
455
456include ${PLAT_MAKEFILE_FULL}
457
458$(eval $(call MAKE_PREREQ_DIR,${BUILD_PLAT}))
459
460ifeq (${ARM_ARCH_MAJOR},7)
461include make_helpers/armv7-a-cpus.mk
462endif
463
464PIE_FOUND		:=	$(findstring --enable-default-pie,${GCC_V_OUTPUT})
465ifneq ($(PIE_FOUND),)
466	TF_CFLAGS	+=	-fno-PIE
467endif
468
469ifneq ($(findstring gcc,$(notdir $(LD))),)
470	PIE_LDFLAGS	+=	-Wl,-pie -Wl,--no-dynamic-linker
471else
472	PIE_LDFLAGS	+=	-pie --no-dynamic-linker
473endif
474
475ifeq ($(ENABLE_PIE),1)
476ifeq ($(BL2_AT_EL3),1)
477ifneq ($(BL2_IN_XIP_MEM),1)
478	BL2_CFLAGS	+=	-fpie
479	BL2_LDFLAGS	+=	$(PIE_LDFLAGS)
480endif
481endif
482	BL31_CFLAGS	+=	-fpie
483	BL31_LDFLAGS	+=	$(PIE_LDFLAGS)
484ifeq ($(ARCH),aarch64)
485	BL32_CFLAGS	+=	-fpie
486	BL32_LDFLAGS	+=	$(PIE_LDFLAGS)
487endif
488endif
489
490# Include the CPU specific operations makefile, which provides default
491# values for all CPU errata workarounds and CPU specific optimisations.
492# This can be overridden by the platform.
493include lib/cpus/cpu-ops.mk
494
495ifeq (${ARCH},aarch32)
496NEED_BL32 := yes
497
498################################################################################
499# Build `AARCH32_SP` as BL32 image for AArch32
500################################################################################
501ifneq (${AARCH32_SP},none)
502# We expect to locate an sp.mk under the specified AARCH32_SP directory
503AARCH32_SP_MAKE	:=	$(wildcard bl32/${AARCH32_SP}/${AARCH32_SP}.mk)
504
505ifeq (${AARCH32_SP_MAKE},)
506  $(error Error: No bl32/${AARCH32_SP}/${AARCH32_SP}.mk located)
507endif
508
509$(info Including ${AARCH32_SP_MAKE})
510include ${AARCH32_SP_MAKE}
511endif
512
513endif
514
515################################################################################
516# Include libc if not overridden
517################################################################################
518ifeq (${OVERRIDE_LIBC},0)
519include lib/libc/libc.mk
520endif
521
522################################################################################
523# Check incompatible options
524################################################################################
525
526ifdef EL3_PAYLOAD_BASE
527        ifdef PRELOADED_BL33_BASE
528                $(warning "PRELOADED_BL33_BASE and EL3_PAYLOAD_BASE are \
529                incompatible build options. EL3_PAYLOAD_BASE has priority.")
530        endif
531        ifneq (${GENERATE_COT},0)
532                $(error "GENERATE_COT and EL3_PAYLOAD_BASE are incompatible build options.")
533        endif
534        ifneq (${TRUSTED_BOARD_BOOT},0)
535                $(error "TRUSTED_BOARD_BOOT and EL3_PAYLOAD_BASE are incompatible build options.")
536        endif
537endif
538
539ifeq (${NEED_BL33},yes)
540        ifdef EL3_PAYLOAD_BASE
541                $(warning "BL33 image is not needed when option \
542                BL33_PAYLOAD_BASE is used and won't be added to the FIP file.")
543        endif
544        ifdef PRELOADED_BL33_BASE
545                $(warning "BL33 image is not needed when option \
546                PRELOADED_BL33_BASE is used and won't be added to the FIP \
547                file.")
548        endif
549endif
550
551# When building for systems with hardware-assisted coherency, there's no need to
552# use USE_COHERENT_MEM. Require that USE_COHERENT_MEM must be set to 0 too.
553ifeq ($(HW_ASSISTED_COHERENCY)-$(USE_COHERENT_MEM),1-1)
554$(error USE_COHERENT_MEM cannot be enabled with HW_ASSISTED_COHERENCY)
555endif
556
557#For now, BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is 1.
558ifeq ($(BL2_AT_EL3)-$(BL2_IN_XIP_MEM),0-1)
559$(error "BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is enabled")
560endif
561
562# For RAS_EXTENSION, require that EAs are handled in EL3 first
563ifeq ($(RAS_EXTENSION),1)
564    ifneq ($(HANDLE_EA_EL3_FIRST),1)
565        $(error For RAS_EXTENSION, HANDLE_EA_EL3_FIRST must also be 1)
566    endif
567endif
568
569# When FAULT_INJECTION_SUPPORT is used, require that RAS_EXTENSION is enabled
570ifeq ($(FAULT_INJECTION_SUPPORT),1)
571    ifneq ($(RAS_EXTENSION),1)
572        $(error For FAULT_INJECTION_SUPPORT, RAS_EXTENSION must also be 1)
573    endif
574endif
575
576# DYN_DISABLE_AUTH can be set only when TRUSTED_BOARD_BOOT=1
577ifeq ($(DYN_DISABLE_AUTH), 1)
578    ifeq (${TRUSTED_BOARD_BOOT}, 0)
579        $(error "TRUSTED_BOARD_BOOT must be enabled for DYN_DISABLE_AUTH to be set.")
580    endif
581endif
582
583# If pointer authentication is used in the firmware, make sure that all the
584# registers associated to it are also saved and restored.
585# Not doing it would leak the value of the keys used by EL3 to EL1 and S-EL1.
586ifeq ($(ENABLE_PAUTH),1)
587    ifeq ($(CTX_INCLUDE_PAUTH_REGS),0)
588        $(error Pointer Authentication requires CTX_INCLUDE_PAUTH_REGS=1)
589    endif
590endif
591
592ifeq ($(CTX_INCLUDE_PAUTH_REGS),1)
593    ifneq (${ARCH},aarch64)
594        $(error CTX_INCLUDE_PAUTH_REGS requires AArch64)
595    else
596        $(info CTX_INCLUDE_PAUTH_REGS is an experimental feature)
597    endif
598endif
599
600ifeq ($(ENABLE_PAUTH),1)
601    $(info Pointer Authentication is an experimental feature)
602endif
603
604ifeq ($(ENABLE_BTI),1)
605    $(info Branch Protection is an experimental feature)
606endif
607
608ifeq ($(CTX_INCLUDE_MTE_REGS),1)
609    ifneq (${ARCH},aarch64)
610        $(error CTX_INCLUDE_MTE_REGS requires AArch64)
611    else
612        $(info CTX_INCLUDE_MTE_REGS is an experimental feature)
613    endif
614endif
615
616ifeq ($(MEASURED_BOOT),1)
617    ifneq (${TRUSTED_BOARD_BOOT},1)
618        $(error MEASURED_BOOT requires TRUSTED_BOARD_BOOT=1")
619    else
620        $(info MEASURED_BOOT is an experimental feature)
621    endif
622endif
623
624ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1)
625    ifeq (${ALLOW_RO_XLAT_TABLES}, 1)
626        $(error "ALLOW_RO_XLAT_TABLES requires translation tables library v2")
627    endif
628endif
629
630################################################################################
631# Process platform overrideable behaviour
632################################################################################
633
634# Using BL2 implies that a BL33 image also needs to be supplied for the FIP and
635# Certificate generation tools. This flag can be overridden by the platform.
636ifdef BL2_SOURCES
637        ifdef EL3_PAYLOAD_BASE
638                # If booting an EL3 payload there is no need for a BL33 image
639                # in the FIP file.
640                NEED_BL33		:=	no
641        else
642                ifdef PRELOADED_BL33_BASE
643                        # If booting a BL33 preloaded image there is no need of
644                        # another one in the FIP file.
645                        NEED_BL33		:=	no
646                else
647                        NEED_BL33		?=	yes
648                endif
649        endif
650endif
651
652# If SCP_BL2 is given, we always want FIP to include it.
653ifdef SCP_BL2
654        NEED_SCP_BL2		:=	yes
655endif
656
657# For AArch32, BL31 is not currently supported.
658ifneq (${ARCH},aarch32)
659    ifdef BL31_SOURCES
660        # When booting an EL3 payload, there is no need to compile the BL31 image nor
661        # put it in the FIP.
662        ifndef EL3_PAYLOAD_BASE
663            NEED_BL31 := yes
664        endif
665    endif
666endif
667
668# Process TBB related flags
669ifneq (${GENERATE_COT},0)
670        # Common cert_create options
671        ifneq (${CREATE_KEYS},0)
672                $(eval CRT_ARGS += -n)
673                $(eval FWU_CRT_ARGS += -n)
674                ifneq (${SAVE_KEYS},0)
675                        $(eval CRT_ARGS += -k)
676                        $(eval FWU_CRT_ARGS += -k)
677                endif
678        endif
679        # Include TBBR makefile (unless the platform indicates otherwise)
680        ifeq (${INCLUDE_TBBR_MK},1)
681                include make_helpers/tbbr/tbbr_tools.mk
682        endif
683endif
684
685ifneq (${FIP_ALIGN},0)
686FIP_ARGS += --align ${FIP_ALIGN}
687endif
688
689################################################################################
690# Include libraries' Makefile that are used in all BL
691################################################################################
692
693include lib/stack_protector/stack_protector.mk
694
695################################################################################
696# Auxiliary tools (fiptool, cert_create, etc)
697################################################################################
698
699# Variables for use with Certificate Generation Tool
700CRTTOOLPATH		?=	tools/cert_create
701CRTTOOL			?=	${CRTTOOLPATH}/cert_create${BIN_EXT}
702
703# Variables for use with Firmware Image Package
704FIPTOOLPATH		?=	tools/fiptool
705FIPTOOL			?=	${FIPTOOLPATH}/fiptool${BIN_EXT}
706
707# Variables for use with sptool
708SPTOOLPATH		?=	tools/sptool
709SPTOOL			?=	${SPTOOLPATH}/sptool${BIN_EXT}
710SP_MK_GEN		?=	${SPTOOLPATH}/sp_mk_generator.py
711
712# Variables for use with ROMLIB
713ROMLIBPATH		?=	lib/romlib
714
715# Variable for use with Python
716PYTHON			?=	python3
717
718# Variables for use with PRINT_MEMORY_MAP
719PRINT_MEMORY_MAP_PATH		?=	tools/memory
720PRINT_MEMORY_MAP		?=	${PRINT_MEMORY_MAP_PATH}/print_memory_map.py
721
722# Variables for use with documentation build using Sphinx tool
723DOCS_PATH		?=	docs
724
725################################################################################
726# Include BL specific makefiles
727################################################################################
728ifdef BL1_SOURCES
729NEED_BL1 := yes
730include bl1/bl1.mk
731endif
732
733ifdef BL2_SOURCES
734NEED_BL2 := yes
735include bl2/bl2.mk
736endif
737
738ifdef BL2U_SOURCES
739NEED_BL2U := yes
740include bl2u/bl2u.mk
741endif
742
743ifeq (${NEED_BL31},yes)
744ifdef BL31_SOURCES
745include bl31/bl31.mk
746endif
747endif
748
749ifdef FDT_SOURCES
750NEED_FDT := yes
751endif
752
753################################################################################
754# Build options checks
755################################################################################
756
757$(eval $(call assert_boolean,ALLOW_RO_XLAT_TABLES))
758$(eval $(call assert_boolean,COLD_BOOT_SINGLE_CPU))
759$(eval $(call assert_boolean,CREATE_KEYS))
760$(eval $(call assert_boolean,CTX_INCLUDE_AARCH32_REGS))
761$(eval $(call assert_boolean,CTX_INCLUDE_FPREGS))
762$(eval $(call assert_boolean,CTX_INCLUDE_PAUTH_REGS))
763$(eval $(call assert_boolean,CTX_INCLUDE_MTE_REGS))
764$(eval $(call assert_boolean,DEBUG))
765$(eval $(call assert_boolean,DYN_DISABLE_AUTH))
766$(eval $(call assert_boolean,EL3_EXCEPTION_HANDLING))
767$(eval $(call assert_boolean,ENABLE_AMU))
768$(eval $(call assert_boolean,ENABLE_ASSERTIONS))
769$(eval $(call assert_boolean,ENABLE_MPAM_FOR_LOWER_ELS))
770$(eval $(call assert_boolean,ENABLE_PIE))
771$(eval $(call assert_boolean,ENABLE_PMF))
772$(eval $(call assert_boolean,ENABLE_PSCI_STAT))
773$(eval $(call assert_boolean,ENABLE_RUNTIME_INSTRUMENTATION))
774$(eval $(call assert_boolean,ENABLE_SPE_FOR_LOWER_ELS))
775$(eval $(call assert_boolean,ENABLE_SVE_FOR_NS))
776$(eval $(call assert_boolean,ERROR_DEPRECATED))
777$(eval $(call assert_boolean,FAULT_INJECTION_SUPPORT))
778$(eval $(call assert_boolean,GENERATE_COT))
779$(eval $(call assert_boolean,GICV2_G0_FOR_EL3))
780$(eval $(call assert_boolean,HANDLE_EA_EL3_FIRST))
781$(eval $(call assert_boolean,HW_ASSISTED_COHERENCY))
782$(eval $(call assert_boolean,MEASURED_BOOT))
783$(eval $(call assert_boolean,NS_TIMER_SWITCH))
784$(eval $(call assert_boolean,OVERRIDE_LIBC))
785$(eval $(call assert_boolean,PL011_GENERIC_UART))
786$(eval $(call assert_boolean,PROGRAMMABLE_RESET_ADDRESS))
787$(eval $(call assert_boolean,PSCI_EXTENDED_STATE_ID))
788$(eval $(call assert_boolean,RAS_EXTENSION))
789$(eval $(call assert_boolean,RESET_TO_BL31))
790$(eval $(call assert_boolean,SAVE_KEYS))
791$(eval $(call assert_boolean,SEPARATE_CODE_AND_RODATA))
792$(eval $(call assert_boolean,SEPARATE_NOBITS_REGION))
793$(eval $(call assert_boolean,SPIN_ON_BL1_EXIT))
794$(eval $(call assert_boolean,SPM_MM))
795$(eval $(call assert_boolean,TRUSTED_BOARD_BOOT))
796$(eval $(call assert_boolean,USE_COHERENT_MEM))
797$(eval $(call assert_boolean,USE_DEBUGFS))
798$(eval $(call assert_boolean,USE_FCONF_BASED_IO))
799$(eval $(call assert_boolean,USE_ROMLIB))
800$(eval $(call assert_boolean,USE_TBBR_DEFS))
801$(eval $(call assert_boolean,WARMBOOT_ENABLE_DCACHE_EARLY))
802$(eval $(call assert_boolean,BL2_AT_EL3))
803$(eval $(call assert_boolean,BL2_IN_XIP_MEM))
804$(eval $(call assert_boolean,BL2_INV_DCACHE))
805$(eval $(call assert_boolean,USE_SPINLOCK_CAS))
806
807$(eval $(call assert_numeric,ARM_ARCH_MAJOR))
808$(eval $(call assert_numeric,ARM_ARCH_MINOR))
809$(eval $(call assert_numeric,BRANCH_PROTECTION))
810
811ifdef KEY_SIZE
812        $(eval $(call assert_numeric,KEY_SIZE))
813endif
814
815ifeq ($(filter $(SANITIZE_UB), on off trap),)
816        $(error "Invalid value for SANITIZE_UB: can be one of on, off, trap")
817endif
818
819################################################################################
820# Add definitions to the cpp preprocessor based on the current build options.
821# This is done after including the platform specific makefile to allow the
822# platform to overwrite the default options
823################################################################################
824
825$(eval $(call add_define,ALLOW_RO_XLAT_TABLES))
826$(eval $(call add_define,ARM_ARCH_MAJOR))
827$(eval $(call add_define,ARM_ARCH_MINOR))
828$(eval $(call add_define,COLD_BOOT_SINGLE_CPU))
829$(eval $(call add_define,CTX_INCLUDE_AARCH32_REGS))
830$(eval $(call add_define,CTX_INCLUDE_FPREGS))
831$(eval $(call add_define,CTX_INCLUDE_PAUTH_REGS))
832$(eval $(call add_define,EL3_EXCEPTION_HANDLING))
833$(eval $(call add_define,CTX_INCLUDE_MTE_REGS))
834$(eval $(call add_define,ENABLE_AMU))
835$(eval $(call add_define,ENABLE_ASSERTIONS))
836$(eval $(call add_define,ENABLE_BTI))
837$(eval $(call add_define,ENABLE_MPAM_FOR_LOWER_ELS))
838$(eval $(call add_define,ENABLE_PAUTH))
839$(eval $(call add_define,ENABLE_PIE))
840$(eval $(call add_define,ENABLE_PMF))
841$(eval $(call add_define,ENABLE_PSCI_STAT))
842$(eval $(call add_define,ENABLE_RUNTIME_INSTRUMENTATION))
843$(eval $(call add_define,ENABLE_SPE_FOR_LOWER_ELS))
844$(eval $(call add_define,ENABLE_SVE_FOR_NS))
845$(eval $(call add_define,ERROR_DEPRECATED))
846$(eval $(call add_define,FAULT_INJECTION_SUPPORT))
847$(eval $(call add_define,GICV2_G0_FOR_EL3))
848$(eval $(call add_define,HANDLE_EA_EL3_FIRST))
849$(eval $(call add_define,HW_ASSISTED_COHERENCY))
850$(eval $(call add_define,LOG_LEVEL))
851$(eval $(call add_define,MEASURED_BOOT))
852$(eval $(call add_define,NS_TIMER_SWITCH))
853$(eval $(call add_define,PL011_GENERIC_UART))
854$(eval $(call add_define,PLAT_${PLAT}))
855$(eval $(call add_define,PROGRAMMABLE_RESET_ADDRESS))
856$(eval $(call add_define,PSCI_EXTENDED_STATE_ID))
857$(eval $(call add_define,RAS_EXTENSION))
858$(eval $(call add_define,RESET_TO_BL31))
859$(eval $(call add_define,SEPARATE_CODE_AND_RODATA))
860$(eval $(call add_define,SEPARATE_NOBITS_REGION))
861$(eval $(call add_define,RECLAIM_INIT_CODE))
862$(eval $(call add_define,SPD_${SPD}))
863$(eval $(call add_define,SPIN_ON_BL1_EXIT))
864$(eval $(call add_define,SPM_MM))
865$(eval $(call add_define,TRUSTED_BOARD_BOOT))
866$(eval $(call add_define,USE_COHERENT_MEM))
867$(eval $(call add_define,USE_DEBUGFS))
868$(eval $(call add_define,USE_FCONF_BASED_IO))
869$(eval $(call add_define,USE_ROMLIB))
870$(eval $(call add_define,USE_TBBR_DEFS))
871$(eval $(call add_define,WARMBOOT_ENABLE_DCACHE_EARLY))
872$(eval $(call add_define,BL2_AT_EL3))
873$(eval $(call add_define,BL2_IN_XIP_MEM))
874$(eval $(call add_define,BL2_INV_DCACHE))
875$(eval $(call add_define,USE_SPINLOCK_CAS))
876
877ifeq (${SANITIZE_UB},trap)
878        $(eval $(call add_define,MONITOR_TRAPS))
879endif
880
881# Define the EL3_PAYLOAD_BASE flag only if it is provided.
882ifdef EL3_PAYLOAD_BASE
883        $(eval $(call add_define,EL3_PAYLOAD_BASE))
884else
885        # Define the PRELOADED_BL33_BASE flag only if it is provided and
886        # EL3_PAYLOAD_BASE is not defined, as it has priority.
887        ifdef PRELOADED_BL33_BASE
888                $(eval $(call add_define,PRELOADED_BL33_BASE))
889        endif
890endif
891
892# Define the DYN_DISABLE_AUTH flag only if set.
893ifeq (${DYN_DISABLE_AUTH},1)
894$(eval $(call add_define,DYN_DISABLE_AUTH))
895endif
896
897ifneq ($(findstring armlink,$(notdir $(LD))),)
898$(eval $(call add_define,USE_ARM_LINK))
899endif
900
901# Generate and include sp_gen.mk if SPD is spmd and SP_LAYOUT_FILE is defined
902ifdef SP_LAYOUT_FILE
903ifeq (${SPD},spmd)
904        -include $(BUILD_PLAT)/sp_gen.mk
905        FIP_DEPS += sp
906        NEED_SP_PKG := yes
907else
908        $(error "SP_LAYOUT_FILE will be used only if SPD=spmd")
909endif
910endif
911
912################################################################################
913# Build targets
914################################################################################
915
916.PHONY:	all msg_start clean realclean distclean cscope locate-checkpatch checkcodebase checkpatch fiptool sptool fip sp fwu_fip certtool dtbs memmap doc
917.SUFFIXES:
918
919all: msg_start
920
921msg_start:
922	@echo "Building ${PLAT}"
923
924ifeq (${ERROR_DEPRECATED},0)
925# Check if deprecated declarations and cpp warnings should be treated as error or not.
926ifneq ($(findstring clang,$(notdir $(CC))),)
927    CPPFLAGS		+= 	-Wno-error=deprecated-declarations
928else
929    CPPFLAGS		+= 	-Wno-error=deprecated-declarations -Wno-error=cpp
930endif
931# __ASSEMBLY__ is deprecated in favor of the compiler-builtin __ASSEMBLER__.
932ASFLAGS	+= -D__ASSEMBLY__
933# AARCH32/AARCH64 macros are deprecated in favor of the compiler-builtin __aarch64__.
934ifeq (${ARCH},aarch32)
935        $(eval $(call add_define,AARCH32))
936else
937        $(eval $(call add_define,AARCH64))
938endif
939endif # !ERROR_DEPRECATED
940
941$(eval $(call MAKE_LIB_DIRS))
942$(eval $(call MAKE_LIB,c))
943
944# Expand build macros for the different images
945ifeq (${NEED_BL1},yes)
946$(eval $(call MAKE_BL,1))
947endif
948
949ifeq (${NEED_BL2},yes)
950ifeq (${BL2_AT_EL3}, 0)
951FIP_BL2_ARGS := tb-fw
952endif
953
954$(if ${BL2}, $(eval $(call TOOL_ADD_IMG,bl2,--${FIP_BL2_ARGS})),\
955	$(eval $(call MAKE_BL,2,${FIP_BL2_ARGS})))
956endif
957
958ifeq (${NEED_SCP_BL2},yes)
959$(eval $(call TOOL_ADD_IMG,scp_bl2,--scp-fw))
960endif
961
962ifeq (${NEED_BL31},yes)
963BL31_SOURCES += ${SPD_SOURCES}
964$(if ${BL31}, $(eval $(call TOOL_ADD_IMG,bl31,--soc-fw)),\
965	$(eval $(call MAKE_BL,31,soc-fw)))
966endif
967
968# If a BL32 image is needed but neither BL32 nor BL32_SOURCES is defined, the
969# build system will call TOOL_ADD_IMG to print a warning message and abort the
970# process. Note that the dependency on BL32 applies to the FIP only.
971ifeq (${NEED_BL32},yes)
972
973BUILD_BL32 := $(if $(BL32),,$(if $(BL32_SOURCES),1))
974
975$(if ${BUILD_BL32}, $(eval $(call MAKE_BL,32,tos-fw)),\
976	$(eval $(call TOOL_ADD_IMG,bl32,--tos-fw)))
977endif
978
979# Add the BL33 image if required by the platform
980ifeq (${NEED_BL33},yes)
981$(eval $(call TOOL_ADD_IMG,bl33,--nt-fw))
982endif
983
984ifeq (${NEED_BL2U},yes)
985$(if ${BL2U}, $(eval $(call TOOL_ADD_IMG,bl2u,--ap-fwu-cfg,FWU_)),\
986	$(eval $(call MAKE_BL,2u,ap-fwu-cfg,FWU_)))
987endif
988
989# Expand build macros for the different images
990ifeq (${NEED_FDT},yes)
991    $(eval $(call MAKE_DTBS,$(BUILD_PLAT)/fdts,$(FDT_SOURCES)))
992endif
993
994# Add Secure Partition packages
995ifeq (${NEED_SP_PKG},yes)
996$(BUILD_PLAT)/sp_gen.mk: ${SP_MK_GEN} ${SP_LAYOUT_FILE} | ${BUILD_PLAT}
997	${Q}${PYTHON} "$<" "$@" $(filter-out $<,$^) $(BUILD_PLAT)
998sp: $(SPTOOL) $(DTBS) $(BUILD_PLAT)/sp_gen.mk
999	${Q}$(SPTOOL) $(SPTOOL_ARGS)
1000	@${ECHO_BLANK_LINE}
1001	@echo "Built SP Images successfully"
1002	@${ECHO_BLANK_LINE}
1003endif
1004
1005locate-checkpatch:
1006ifndef CHECKPATCH
1007	$(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/scripts/checkpatch.pl")
1008else
1009ifeq (,$(wildcard ${CHECKPATCH}))
1010	$(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/scripts/checkpatch.pl")
1011endif
1012endif
1013
1014clean:
1015	@echo "  CLEAN"
1016	$(call SHELL_REMOVE_DIR,${BUILD_PLAT})
1017	${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
1018	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
1019	${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean
1020
1021realclean distclean:
1022	@echo "  REALCLEAN"
1023	$(call SHELL_REMOVE_DIR,${BUILD_BASE})
1024	$(call SHELL_DELETE_ALL, ${CURDIR}/cscope.*)
1025	${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
1026	${Q}${MAKE} --no-print-directory -C ${SPTOOLPATH} clean
1027	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
1028	${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean
1029
1030checkcodebase:		locate-checkpatch
1031	@echo "  CHECKING STYLE"
1032	@if test -d .git ; then						\
1033		git ls-files | grep -E -v 'libfdt|libc|docs|\.rst' |	\
1034		while read GIT_FILE ;					\
1035		do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ;	\
1036		done ;							\
1037	else								\
1038		 find . -type f -not -iwholename "*.git*"		\
1039		 -not -iwholename "*build*"				\
1040		 -not -iwholename "*libfdt*"				\
1041		 -not -iwholename "*libc*"				\
1042		 -not -iwholename "*docs*"				\
1043		 -not -iwholename "*.rst"				\
1044		 -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ;	\
1045	fi
1046
1047checkpatch:		locate-checkpatch
1048	@echo "  CHECKING STYLE"
1049	@if test -n "${CHECKPATCH_OPTS}"; then				\
1050		echo "    with ${CHECKPATCH_OPTS} option(s)";		\
1051	fi
1052	${Q}COMMON_COMMIT=$$(git merge-base HEAD ${BASE_COMMIT});	\
1053	for commit in `git rev-list $$COMMON_COMMIT..HEAD`; do		\
1054		printf "\n[*] Checking style of '$$commit'\n\n";	\
1055		git log --format=email "$$commit~..$$commit"		\
1056			-- ${CHECK_PATHS} |				\
1057			${CHECKPATCH} ${CHECKPATCH_OPTS} - || true;	\
1058		git diff --format=email "$$commit~..$$commit"		\
1059			-- ${CHECK_PATHS} |				\
1060			${CHECKPATCH}  ${CHECKPATCH_OPTS} - || true;	\
1061	done
1062
1063certtool: ${CRTTOOL}
1064
1065.PHONY: ${CRTTOOL}
1066${CRTTOOL}:
1067	${Q}${MAKE} PLAT=${PLAT} USE_TBBR_DEFS=${USE_TBBR_DEFS} COT=${COT} --no-print-directory -C ${CRTTOOLPATH}
1068	@${ECHO_BLANK_LINE}
1069	@echo "Built $@ successfully"
1070	@${ECHO_BLANK_LINE}
1071
1072ifneq (${GENERATE_COT},0)
1073certificates: ${CRT_DEPS} ${CRTTOOL}
1074	${Q}${CRTTOOL} ${CRT_ARGS}
1075	@${ECHO_BLANK_LINE}
1076	@echo "Built $@ successfully"
1077	@echo "Certificates can be found in ${BUILD_PLAT}"
1078	@${ECHO_BLANK_LINE}
1079endif
1080
1081${BUILD_PLAT}/${FIP_NAME}: ${FIP_DEPS} ${FIPTOOL}
1082	${Q}${FIPTOOL} create ${FIP_ARGS} $@
1083	${Q}${FIPTOOL} info $@
1084	@${ECHO_BLANK_LINE}
1085	@echo "Built $@ successfully"
1086	@${ECHO_BLANK_LINE}
1087
1088ifneq (${GENERATE_COT},0)
1089fwu_certificates: ${FWU_CRT_DEPS} ${CRTTOOL}
1090	${Q}${CRTTOOL} ${FWU_CRT_ARGS}
1091	@${ECHO_BLANK_LINE}
1092	@echo "Built $@ successfully"
1093	@echo "FWU certificates can be found in ${BUILD_PLAT}"
1094	@${ECHO_BLANK_LINE}
1095endif
1096
1097${BUILD_PLAT}/${FWU_FIP_NAME}: ${FWU_FIP_DEPS} ${FIPTOOL}
1098	${Q}${FIPTOOL} create ${FWU_FIP_ARGS} $@
1099	${Q}${FIPTOOL} info $@
1100	@${ECHO_BLANK_LINE}
1101	@echo "Built $@ successfully"
1102	@${ECHO_BLANK_LINE}
1103
1104fiptool: ${FIPTOOL}
1105fip: ${BUILD_PLAT}/${FIP_NAME}
1106fwu_fip: ${BUILD_PLAT}/${FWU_FIP_NAME}
1107
1108.PHONY: ${FIPTOOL}
1109${FIPTOOL}:
1110	${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" --no-print-directory -C ${FIPTOOLPATH}
1111
1112sptool: ${SPTOOL}
1113.PHONY: ${SPTOOL}
1114${SPTOOL}:
1115	${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" --no-print-directory -C ${SPTOOLPATH}
1116
1117.PHONY: libraries
1118romlib.bin: libraries
1119	${Q}${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
1120
1121# Call print_memory_map tool
1122memmap: all
1123	${Q}${PYTHON} $(PRINT_MEMORY_MAP) $(BUILD_PLAT)
1124
1125doc:
1126	@echo "  BUILD DOCUMENTATION"
1127	${Q}${MAKE} --no-print-directory -C ${DOCS_PATH} html
1128
1129cscope:
1130	@echo "  CSCOPE"
1131	${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files
1132	${Q}cscope -b -q -k
1133
1134help:
1135	@echo "usage: ${MAKE} [PLAT=<platform>] [OPTIONS] [TARGET]"
1136	@echo ""
1137	@echo "PLAT is used to specify which platform you wish to build."
1138	@echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}"
1139	@echo ""
1140	@echo "platform = ${PLATFORM_LIST}"
1141	@echo ""
1142	@echo "Please refer to the User Guide for a list of all supported options."
1143	@echo "Note that the build system doesn't track dependencies for build "
1144	@echo "options. Therefore, if any of the build options are changed "
1145	@echo "from a previous build, a clean build must be performed."
1146	@echo ""
1147	@echo "Supported Targets:"
1148	@echo "  all            Build all individual bootloader binaries"
1149	@echo "  bl1            Build the BL1 binary"
1150	@echo "  bl2            Build the BL2 binary"
1151	@echo "  bl2u           Build the BL2U binary"
1152	@echo "  bl31           Build the BL31 binary"
1153	@echo "  bl32           Build the BL32 binary. If ARCH=aarch32, then "
1154	@echo "                 this builds secure payload specified by AARCH32_SP"
1155	@echo "  certificates   Build the certificates (requires 'GENERATE_COT=1')"
1156	@echo "  fip            Build the Firmware Image Package (FIP)"
1157	@echo "  fwu_fip        Build the FWU Firmware Image Package (FIP)"
1158	@echo "  checkcodebase  Check the coding style of the entire source tree"
1159	@echo "  checkpatch     Check the coding style on changes in the current"
1160	@echo "                 branch against BASE_COMMIT (default origin/master)"
1161	@echo "  clean          Clean the build for the selected platform"
1162	@echo "  cscope         Generate cscope index"
1163	@echo "  distclean      Remove all build artifacts for all platforms"
1164	@echo "  certtool       Build the Certificate generation tool"
1165	@echo "  fiptool        Build the Firmware Image Package (FIP) creation tool"
1166	@echo "  sp             Build the Secure Partition Packages"
1167	@echo "  sptool         Build the Secure Partition Package creation tool"
1168	@echo "  dtbs           Build the Device Tree Blobs (if required for the platform)"
1169	@echo "  memmap         Print the memory map of the built binaries"
1170	@echo "  doc            Build html based documentation using Sphinx tool"
1171	@echo ""
1172	@echo "Note: most build targets require PLAT to be set to a specific platform."
1173	@echo ""
1174	@echo "example: build all targets for the FVP platform:"
1175	@echo "  CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all"
1176