xref: /rk3399_ARM-atf/Makefile (revision 07570d592ea5b8a0ea22f23d2d502782b9d6c1c5) 
1#
2# Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are met:
6#
7# Redistributions of source code must retain the above copyright notice, this
8# list of conditions and the following disclaimer.
9#
10# Redistributions in binary form must reproduce the above copyright notice,
11# this list of conditions and the following disclaimer in the documentation
12# and/or other materials provided with the distribution.
13#
14# Neither the name of ARM nor the names of its contributors may be used
15# to endorse or promote products derived from this software without specific
16# prior written permission.
17#
18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28# POSSIBILITY OF SUCH DAMAGE.
29#
30
31#
32# Trusted Firmware Version
33#
34VERSION_MAJOR			:= 1
35VERSION_MINOR			:= 3
36
37# Default goal is build all images
38.DEFAULT_GOAL			:= all
39
40# Avoid any implicit propagation of command line variable definitions to
41# sub-Makefiles, like CFLAGS that we reserved for the firmware images'
42# usage. Other command line options like "-s" are still propagated as usual.
43MAKEOVERRIDES =
44
45MAKE_HELPERS_DIRECTORY := make_helpers/
46include ${MAKE_HELPERS_DIRECTORY}build_macros.mk
47include ${MAKE_HELPERS_DIRECTORY}build_env.mk
48
49################################################################################
50# Default values for build configurations, and their dependencies
51################################################################################
52
53include ${MAKE_HELPERS_DIRECTORY}defaults.mk
54
55# ASM_ASSERTION enabled for DEBUG builds only
56ASM_ASSERTION			:= ${DEBUG}
57ENABLE_PMF			:= ${ENABLE_RUNTIME_INSTRUMENTATION}
58PLAT				:= ${DEFAULT_PLAT}
59
60################################################################################
61# Checkpatch script options
62################################################################################
63
64CHECKCODE_ARGS		:=	--no-patch
65# Do not check the coding style on imported library files or documentation files
66INC_LIB_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
67					include/lib/libfdt		\
68					include/lib/stdlib,		\
69					$(wildcard include/lib/*)))
70INC_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
71					include/lib,			\
72					$(wildcard include/*)))
73LIB_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
74					lib/libfdt%			\
75					lib/stdlib,			\
76					$(wildcard lib/*)))
77ROOT_DIRS_TO_CHECK	:=	$(sort $(filter-out			\
78					lib				\
79					include				\
80					docs				\
81					%.md,				\
82					$(wildcard *)))
83CHECK_PATHS		:=	${ROOT_DIRS_TO_CHECK}			\
84				${INC_DIRS_TO_CHECK}			\
85				${INC_LIB_DIRS_TO_CHECK}		\
86				${LIB_DIRS_TO_CHECK}
87
88
89################################################################################
90# Process build options
91################################################################################
92
93# Verbose flag
94ifeq (${V},0)
95        Q:=@
96        CHECKCODE_ARGS	+=	--no-summary --terse
97else
98        Q:=
99endif
100export Q
101
102# Process Debug flag
103$(eval $(call add_define,DEBUG))
104ifneq (${DEBUG}, 0)
105        BUILD_TYPE	:=	debug
106        TF_CFLAGS	+= 	-g
107        ASFLAGS		+= 	-g -Wa,--gdwarf-2
108        # Use LOG_LEVEL_INFO by default for debug builds
109        LOG_LEVEL	:=	40
110else
111        BUILD_TYPE	:=	release
112        $(eval $(call add_define,NDEBUG))
113        # Use LOG_LEVEL_NOTICE by default for release builds
114        LOG_LEVEL	:=	20
115endif
116
117# Default build string (git branch and commit)
118ifeq (${BUILD_STRING},)
119        BUILD_STRING	:=	$(shell git describe --always --dirty --tags 2> /dev/null)
120endif
121VERSION_STRING		:=	v${VERSION_MAJOR}.${VERSION_MINOR}(${BUILD_TYPE}):${BUILD_STRING}
122
123# The cert_create tool cannot generate certificates individually, so we use the
124# target 'certificates' to create them all
125ifneq (${GENERATE_COT},0)
126        FIP_DEPS += certificates
127        FWU_FIP_DEPS += fwu_certificates
128endif
129
130
131################################################################################
132# Toolchain
133################################################################################
134
135CC			:=	${CROSS_COMPILE}gcc
136CPP			:=	${CROSS_COMPILE}cpp
137AS			:=	${CROSS_COMPILE}gcc
138AR			:=	${CROSS_COMPILE}ar
139LD			:=	${CROSS_COMPILE}ld
140OC			:=	${CROSS_COMPILE}objcopy
141OD			:=	${CROSS_COMPILE}objdump
142NM			:=	${CROSS_COMPILE}nm
143PP			:=	${CROSS_COMPILE}gcc -E
144
145ASFLAGS_aarch64		=	-mgeneral-regs-only
146TF_CFLAGS_aarch64	=	-mgeneral-regs-only -mstrict-align
147
148ASFLAGS_aarch32		=	-march=armv8-a
149TF_CFLAGS_aarch32	=	-march=armv8-a
150
151CPPFLAGS		=	${DEFINES} ${INCLUDES} -nostdinc		\
152				-Wmissing-include-dirs -Werror
153ASFLAGS			+=	$(CPPFLAGS) $(ASFLAGS_$(ARCH))			\
154				-D__ASSEMBLY__ -ffreestanding 			\
155				-Wa,--fatal-warnings
156TF_CFLAGS		+=	$(CPPFLAGS) $(TF_CFLAGS_$(ARCH))		\
157				-ffreestanding -fno-builtin -Wall -std=c99 -Os	\
158				-ffunction-sections -fdata-sections
159
160LDFLAGS			+=	--fatal-warnings -O1
161LDFLAGS			+=	--gc-sections
162
163
164################################################################################
165# Common sources and include directories
166################################################################################
167include lib/stdlib/stdlib.mk
168
169BL_COMMON_SOURCES	+=	common/bl_common.c			\
170				common/tf_printf.c			\
171				common/${ARCH}/debug.S			\
172				lib/${ARCH}/cache_helpers.S		\
173				lib/${ARCH}/misc_helpers.S		\
174				plat/common/${ARCH}/plat_common.c	\
175				plat/common/${ARCH}/platform_helpers.S	\
176				${STDLIB_SRCS}
177
178INCLUDES		+=	-Iinclude/bl1				\
179				-Iinclude/bl31				\
180				-Iinclude/common			\
181				-Iinclude/common/${ARCH}		\
182				-Iinclude/drivers			\
183				-Iinclude/drivers/arm			\
184				-Iinclude/drivers/auth			\
185				-Iinclude/drivers/io			\
186				-Iinclude/drivers/ti/uart		\
187				-Iinclude/lib				\
188				-Iinclude/lib/${ARCH}			\
189				-Iinclude/lib/cpus			\
190				-Iinclude/lib/cpus/${ARCH}		\
191				-Iinclude/lib/el3_runtime		\
192				-Iinclude/lib/el3_runtime/${ARCH}	\
193				-Iinclude/lib/pmf			\
194				-Iinclude/lib/psci			\
195				-Iinclude/lib/xlat_tables		\
196				-Iinclude/plat/common			\
197				-Iinclude/services			\
198				${PLAT_INCLUDES}			\
199				${SPD_INCLUDES}
200
201
202################################################################################
203# Generic definitions
204################################################################################
205
206include ${MAKE_HELPERS_DIRECTORY}plat_helpers.mk
207
208BUILD_BASE		:=	./build
209BUILD_PLAT		:=	${BUILD_BASE}/${PLAT}/${BUILD_TYPE}
210
211SPDS			:=	$(sort $(filter-out none, $(patsubst services/spd/%,%,$(wildcard services/spd/*))))
212
213# Platforms providing their own TBB makefile may override this value
214INCLUDE_TBBR_MK		:=	1
215
216
217################################################################################
218# Include SPD Makefile if one has been specified
219################################################################################
220
221ifneq (${SPD},none)
222ifeq (${ARCH},aarch32)
223	$(error "Error: SPD is incompatible with AArch32.")
224endif
225ifdef EL3_PAYLOAD_BASE
226        $(warning "SPD and EL3_PAYLOAD_BASE are incompatible build options.")
227        $(warning "The SPD and its BL32 companion will be present but ignored.")
228endif
229        # We expect to locate an spd.mk under the specified SPD directory
230        SPD_MAKE	:=	$(wildcard services/spd/${SPD}/${SPD}.mk)
231
232        ifeq (${SPD_MAKE},)
233                $(error Error: No services/spd/${SPD}/${SPD}.mk located)
234        endif
235        $(info Including ${SPD_MAKE})
236        include ${SPD_MAKE}
237
238        # If there's BL32 companion for the chosen SPD, we expect that the SPD's
239        # Makefile would set NEED_BL32 to "yes". In this case, the build system
240        # supports two mutually exclusive options:
241        # * BL32 is built from source: then BL32_SOURCES must contain the list
242        #   of source files to build BL32
243        # * BL32 is a prebuilt binary: then BL32 must point to the image file
244        #   that will be included in the FIP
245        # If both BL32_SOURCES and BL32 are defined, the binary takes precedence
246        # over the sources.
247endif
248
249################################################################################
250# Include libraries' Makefile that are used in all BL
251################################################################################
252
253include lib/stack_protector/stack_protector.mk
254
255
256################################################################################
257# Include the platform specific Makefile after the SPD Makefile (the platform
258# makefile may use all previous definitions in this file)
259################################################################################
260
261include ${PLAT_MAKEFILE_FULL}
262
263# Platform compatibility is not supported in AArch32
264ifneq (${ARCH},aarch32)
265# If the platform has not defined ENABLE_PLAT_COMPAT, then enable it by default
266ifndef ENABLE_PLAT_COMPAT
267ENABLE_PLAT_COMPAT := 1
268endif
269
270# Include the platform compatibility helpers for PSCI
271ifneq (${ENABLE_PLAT_COMPAT}, 0)
272include plat/compat/plat_compat.mk
273endif
274endif
275
276# Include the CPU specific operations makefile, which provides default
277# values for all CPU errata workarounds and CPU specific optimisations.
278# This can be overridden by the platform.
279include lib/cpus/cpu-ops.mk
280
281
282################################################################################
283# Check incompatible options
284################################################################################
285
286ifdef EL3_PAYLOAD_BASE
287        ifdef PRELOADED_BL33_BASE
288                $(warning "PRELOADED_BL33_BASE and EL3_PAYLOAD_BASE are \
289                incompatible build options. EL3_PAYLOAD_BASE has priority.")
290        endif
291endif
292
293ifeq (${NEED_BL33},yes)
294        ifdef EL3_PAYLOAD_BASE
295                $(warning "BL33 image is not needed when option \
296                BL33_PAYLOAD_BASE is used and won't be added to the FIP file.")
297        endif
298        ifdef PRELOADED_BL33_BASE
299                $(warning "BL33 image is not needed when option \
300                PRELOADED_BL33_BASE is used and won't be added to the FIP \
301                file.")
302        endif
303endif
304
305ifeq (${ARCH},aarch32)
306    # For AArch32, LOAD_IMAGE_V2 must be enabled.
307    ifeq (${LOAD_IMAGE_V2}, 0)
308        $(error "For AArch32, LOAD_IMAGE_V2 must be enabled.")
309    endif
310    # TRUSTED_BOARD_BOOT is currently not supported for AArch32.
311    ifeq (${TRUSTED_BOARD_BOOT},1)
312        $(error "TRUSTED_BOARD_BOOT is currently not supported for AArch32")
313    endif
314endif
315
316# When building for systems with hardware-assisted coherency, there's no need to
317# use USE_COHERENT_MEM. Require that USE_COHERENT_MEM must be set to 0 too.
318ifeq ($(HW_ASSISTED_COHERENCY)-$(USE_COHERENT_MEM),1-1)
319$(error USE_COHERENT_MEM cannot be enabled with HW_ASSISTED_COHERENCY)
320endif
321
322################################################################################
323# Process platform overrideable behaviour
324################################################################################
325
326# Check if -pedantic option should be used
327ifeq (${DISABLE_PEDANTIC},0)
328        TF_CFLAGS	+= 	-pedantic
329endif
330
331# Using the ARM Trusted Firmware BL2 implies that a BL33 image also needs to be
332# supplied for the FIP and Certificate generation tools. This flag can be
333# overridden by the platform.
334ifdef BL2_SOURCES
335        ifdef EL3_PAYLOAD_BASE
336                # If booting an EL3 payload there is no need for a BL33 image
337                # in the FIP file.
338                NEED_BL33		:=	no
339        else
340                ifdef PRELOADED_BL33_BASE
341                        # If booting a BL33 preloaded image there is no need of
342                        # another one in the FIP file.
343                        NEED_BL33		:=	no
344                else
345                        NEED_BL33		?=	yes
346                endif
347        endif
348endif
349
350# If SCP_BL2 is given, we always want FIP to include it.
351ifdef SCP_BL2
352        NEED_SCP_BL2		:=	yes
353endif
354
355# Process TBB related flags
356ifneq (${GENERATE_COT},0)
357        # Common cert_create options
358        ifneq (${CREATE_KEYS},0)
359                $(eval CRT_ARGS += -n)
360                $(eval FWU_CRT_ARGS += -n)
361                ifneq (${SAVE_KEYS},0)
362                        $(eval CRT_ARGS += -k)
363                        $(eval FWU_CRT_ARGS += -k)
364                endif
365        endif
366        # Include TBBR makefile (unless the platform indicates otherwise)
367        ifeq (${INCLUDE_TBBR_MK},1)
368                include make_helpers/tbbr/tbbr_tools.mk
369        endif
370endif
371
372ifneq (${FIP_ALIGN},0)
373FIP_ARGS += --align ${FIP_ALIGN}
374endif
375
376################################################################################
377# Auxiliary tools (fiptool, cert_create, etc)
378################################################################################
379
380# Variables for use with Certificate Generation Tool
381CRTTOOLPATH		?=	tools/cert_create
382CRTTOOL			?=	${CRTTOOLPATH}/cert_create${BIN_EXT}
383
384# Variables for use with Firmware Image Package
385FIPTOOLPATH		?=	tools/fiptool
386FIPTOOL			?=	${FIPTOOLPATH}/fiptool${BIN_EXT}
387
388################################################################################
389# Include BL specific makefiles
390################################################################################
391ifdef BL1_SOURCES
392NEED_BL1 := yes
393include bl1/bl1.mk
394endif
395
396ifdef BL2_SOURCES
397NEED_BL2 := yes
398include bl2/bl2.mk
399endif
400
401# For AArch32, BL31 is not applicable, and BL2U is not supported at present.
402ifneq (${ARCH},aarch32)
403ifdef BL2U_SOURCES
404NEED_BL2U := yes
405include bl2u/bl2u.mk
406endif
407
408ifdef BL31_SOURCES
409# When booting an EL3 payload, there is no need to compile the BL31 image nor
410# put it in the FIP.
411ifndef EL3_PAYLOAD_BASE
412NEED_BL31 := yes
413include bl31/bl31.mk
414endif
415endif
416endif
417
418ifeq (${ARCH},aarch32)
419NEED_BL32 := yes
420
421################################################################################
422# Build `AARCH32_SP` as BL32 image for AArch32
423################################################################################
424ifneq (${AARCH32_SP},none)
425# We expect to locate an sp.mk under the specified AARCH32_SP directory
426AARCH32_SP_MAKE	:=	$(wildcard bl32/${AARCH32_SP}/${AARCH32_SP}.mk)
427
428ifeq (${AARCH32_SP_MAKE},)
429  $(error Error: No bl32/${AARCH32_SP}/${AARCH32_SP}.mk located)
430endif
431
432$(info Including ${AARCH32_SP_MAKE})
433include ${AARCH32_SP_MAKE}
434endif
435
436endif
437
438################################################################################
439# Build options checks
440################################################################################
441
442$(eval $(call assert_boolean,ASM_ASSERTION))
443$(eval $(call assert_boolean,COLD_BOOT_SINGLE_CPU))
444$(eval $(call assert_boolean,CREATE_KEYS))
445$(eval $(call assert_boolean,CTX_INCLUDE_AARCH32_REGS))
446$(eval $(call assert_boolean,CTX_INCLUDE_FPREGS))
447$(eval $(call assert_boolean,DEBUG))
448$(eval $(call assert_boolean,DISABLE_PEDANTIC))
449$(eval $(call assert_boolean,ENABLE_PLAT_COMPAT))
450$(eval $(call assert_boolean,ENABLE_PMF))
451$(eval $(call assert_boolean,ENABLE_PSCI_STAT))
452$(eval $(call assert_boolean,ENABLE_RUNTIME_INSTRUMENTATION))
453$(eval $(call assert_boolean,ERROR_DEPRECATED))
454$(eval $(call assert_boolean,GENERATE_COT))
455$(eval $(call assert_boolean,HW_ASSISTED_COHERENCY))
456$(eval $(call assert_boolean,LOAD_IMAGE_V2))
457$(eval $(call assert_boolean,NS_TIMER_SWITCH))
458$(eval $(call assert_boolean,PL011_GENERIC_UART))
459$(eval $(call assert_boolean,PROGRAMMABLE_RESET_ADDRESS))
460$(eval $(call assert_boolean,PSCI_EXTENDED_STATE_ID))
461$(eval $(call assert_boolean,RESET_TO_BL31))
462$(eval $(call assert_boolean,SAVE_KEYS))
463$(eval $(call assert_boolean,SEPARATE_CODE_AND_RODATA))
464$(eval $(call assert_boolean,SPIN_ON_BL1_EXIT))
465$(eval $(call assert_boolean,TRUSTED_BOARD_BOOT))
466$(eval $(call assert_boolean,USE_COHERENT_MEM))
467
468$(eval $(call assert_numeric,ARM_ARCH_MAJOR))
469$(eval $(call assert_numeric,ARM_ARCH_MINOR))
470
471################################################################################
472# Add definitions to the cpp preprocessor based on the current build options.
473# This is done after including the platform specific makefile to allow the
474# platform to overwrite the default options
475################################################################################
476
477$(eval $(call add_define,ARM_CCI_PRODUCT_ID))
478$(eval $(call add_define,ARM_ARCH_MAJOR))
479$(eval $(call add_define,ARM_ARCH_MINOR))
480$(eval $(call add_define,ARM_GIC_ARCH))
481$(eval $(call add_define,ASM_ASSERTION))
482$(eval $(call add_define,COLD_BOOT_SINGLE_CPU))
483$(eval $(call add_define,CTX_INCLUDE_AARCH32_REGS))
484$(eval $(call add_define,CTX_INCLUDE_FPREGS))
485$(eval $(call add_define,ENABLE_PLAT_COMPAT))
486$(eval $(call add_define,ENABLE_PMF))
487$(eval $(call add_define,ENABLE_PSCI_STAT))
488$(eval $(call add_define,ENABLE_RUNTIME_INSTRUMENTATION))
489$(eval $(call add_define,ERROR_DEPRECATED))
490$(eval $(call add_define,HW_ASSISTED_COHERENCY))
491$(eval $(call add_define,LOAD_IMAGE_V2))
492$(eval $(call add_define,LOG_LEVEL))
493$(eval $(call add_define,NS_TIMER_SWITCH))
494$(eval $(call add_define,PL011_GENERIC_UART))
495$(eval $(call add_define,PLAT_${PLAT}))
496$(eval $(call add_define,PROGRAMMABLE_RESET_ADDRESS))
497$(eval $(call add_define,PSCI_EXTENDED_STATE_ID))
498$(eval $(call add_define,RESET_TO_BL31))
499$(eval $(call add_define,SEPARATE_CODE_AND_RODATA))
500$(eval $(call add_define,SPD_${SPD}))
501$(eval $(call add_define,SPIN_ON_BL1_EXIT))
502$(eval $(call add_define,TRUSTED_BOARD_BOOT))
503$(eval $(call add_define,USE_COHERENT_MEM))
504
505# Define the EL3_PAYLOAD_BASE flag only if it is provided.
506ifdef EL3_PAYLOAD_BASE
507        $(eval $(call add_define,EL3_PAYLOAD_BASE))
508else
509        # Define the PRELOADED_BL33_BASE flag only if it is provided and
510        # EL3_PAYLOAD_BASE is not defined, as it has priority.
511        ifdef PRELOADED_BL33_BASE
512                $(eval $(call add_define,PRELOADED_BL33_BASE))
513        endif
514endif
515# Define the AARCH32/AARCH64 flag based on the ARCH flag
516ifeq (${ARCH},aarch32)
517        $(eval $(call add_define,AARCH32))
518else
519        $(eval $(call add_define,AARCH64))
520endif
521
522################################################################################
523# Build targets
524################################################################################
525
526.PHONY:	all msg_start clean realclean distclean cscope locate-checkpatch checkcodebase checkpatch fiptool fip fwu_fip certtool
527.SUFFIXES:
528
529all: msg_start
530
531msg_start:
532	@echo "Building ${PLAT}"
533
534# Check if deprecated declarations should be treated as error or not.
535ifeq (${ERROR_DEPRECATED},0)
536    TF_CFLAGS		+= 	-Wno-error=deprecated-declarations
537endif
538
539# Expand build macros for the different images
540ifeq (${NEED_BL1},yes)
541$(eval $(call MAKE_BL,1))
542endif
543
544ifeq (${NEED_BL2},yes)
545$(if ${BL2}, $(eval $(call MAKE_TOOL_ARGS,2,${BL2},tb-fw)),\
546	$(eval $(call MAKE_BL,2,tb-fw)))
547endif
548
549ifeq (${NEED_SCP_BL2},yes)
550$(eval $(call FIP_ADD_IMG,SCP_BL2,--scp-fw))
551endif
552
553ifeq (${NEED_BL31},yes)
554BL31_SOURCES += ${SPD_SOURCES}
555$(if ${BL31}, $(eval $(call MAKE_TOOL_ARGS,31,${BL31},soc-fw)),\
556	$(eval $(call MAKE_BL,31,soc-fw)))
557endif
558
559# If a BL32 image is needed but neither BL32 nor BL32_SOURCES is defined, the
560# build system will call FIP_ADD_IMG to print a warning message and abort the
561# process. Note that the dependency on BL32 applies to the FIP only.
562ifeq (${NEED_BL32},yes)
563$(if ${BL32}, $(eval $(call MAKE_TOOL_ARGS,32,${BL32},tos-fw)),\
564	$(if ${BL32_SOURCES}, $(eval $(call MAKE_BL,32,tos-fw)),\
565		$(eval $(call FIP_ADD_IMG,BL32,--tos-fw))))
566endif
567
568# Add the BL33 image if required by the platform
569ifeq (${NEED_BL33},yes)
570$(eval $(call FIP_ADD_IMG,BL33,--nt-fw))
571endif
572
573ifeq (${NEED_BL2U},yes)
574BL2U_PATH	:= $(if ${BL2U},${BL2U},$(call IMG_BIN,2u))
575$(if ${BL2U}, ,$(eval $(call MAKE_BL,2u)))
576$(eval $(call FWU_FIP_ADD_PAYLOAD,${BL2U_PATH},--ap-fwu-cfg))
577endif
578
579locate-checkpatch:
580ifndef CHECKPATCH
581	$(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/script/checkpatch.pl")
582else
583ifeq (,$(wildcard ${CHECKPATCH}))
584	$(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/script/checkpatch.pl")
585endif
586endif
587
588clean:
589	@echo "  CLEAN"
590	$(call SHELL_REMOVE_DIR,${BUILD_PLAT})
591	${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
592	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
593
594realclean distclean:
595	@echo "  REALCLEAN"
596	$(call SHELL_REMOVE_DIR,${BUILD_BASE})
597	$(call SHELL_DELETE_ALL, ${CURDIR}/cscope.*)
598	${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
599	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
600
601checkcodebase:		locate-checkpatch
602	@echo "  CHECKING STYLE"
603	@if test -d .git ; then						\
604		git ls-files | grep -E -v 'libfdt|stdlib|docs|\.md' |	\
605		while read GIT_FILE ;					\
606		do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ;	\
607		done ;							\
608	else								\
609		 find . -type f -not -iwholename "*.git*"		\
610		 -not -iwholename "*build*"				\
611		 -not -iwholename "*libfdt*"				\
612		 -not -iwholename "*stdlib*"				\
613		 -not -iwholename "*docs*"				\
614		 -not -iwholename "*.md"				\
615		 -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ;	\
616	fi
617
618checkpatch:		locate-checkpatch
619	@echo "  CHECKING STYLE"
620	${Q}git format-patch --stdout ${BASE_COMMIT}..HEAD -- ${CHECK_PATHS} | ${CHECKPATCH} - || true
621
622certtool: ${CRTTOOL}
623
624.PHONY: ${CRTTOOL}
625${CRTTOOL}:
626	${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH}
627	@${ECHO_BLANK_LINE}
628	@echo "Built $@ successfully"
629	@${ECHO_BLANK_LINE}
630
631ifneq (${GENERATE_COT},0)
632certificates: ${CRT_DEPS} ${CRTTOOL}
633	${Q}${CRTTOOL} ${CRT_ARGS}
634	@${ECHO_BLANK_LINE}
635	@echo "Built $@ successfully"
636	@echo "Certificates can be found in ${BUILD_PLAT}"
637	@${ECHO_BLANK_LINE}
638endif
639
640${BUILD_PLAT}/${FIP_NAME}: ${FIP_DEPS} ${FIPTOOL}
641	${Q}${FIPTOOL} create ${FIP_ARGS} $@
642	${Q}${FIPTOOL} info $@
643	@${ECHO_BLANK_LINE}
644	@echo "Built $@ successfully"
645	@${ECHO_BLANK_LINE}
646
647ifneq (${GENERATE_COT},0)
648fwu_certificates: ${FWU_CRT_DEPS} ${CRTTOOL}
649	${Q}${CRTTOOL} ${FWU_CRT_ARGS}
650	@echo
651	@echo "Built $@ successfully"
652	@echo "FWU certificates can be found in ${BUILD_PLAT}"
653	@echo
654endif
655
656${BUILD_PLAT}/${FWU_FIP_NAME}: ${FWU_FIP_DEPS} ${FIPTOOL}
657	${Q}${FIPTOOL} create ${FWU_FIP_ARGS} $@
658	${Q}${FIPTOOL} info $@
659	@echo
660	@echo "Built $@ successfully"
661	@echo
662
663fiptool: ${FIPTOOL}
664fip: ${BUILD_PLAT}/${FIP_NAME}
665fwu_fip: ${BUILD_PLAT}/${FWU_FIP_NAME}
666
667.PHONY: ${FIPTOOL}
668${FIPTOOL}:
669	${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" --no-print-directory -C ${FIPTOOLPATH}
670
671cscope:
672	@echo "  CSCOPE"
673	${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files
674	${Q}cscope -b -q -k
675
676help:
677	@echo "usage: ${MAKE} PLAT=<${PLATFORM_LIST}> [OPTIONS] [TARGET]"
678	@echo ""
679	@echo "PLAT is used to specify which platform you wish to build."
680	@echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}"
681	@echo ""
682	@echo "Please refer to the User Guide for a list of all supported options."
683	@echo "Note that the build system doesn't track dependencies for build "
684	@echo "options. Therefore, if any of the build options are changed "
685	@echo "from a previous build, a clean build must be performed."
686	@echo ""
687	@echo "Supported Targets:"
688	@echo "  all            Build all individual bootloader binaries"
689	@echo "  bl1            Build the BL1 binary"
690	@echo "  bl2            Build the BL2 binary"
691	@echo "  bl2u           Build the BL2U binary"
692	@echo "  bl31           Build the BL31 binary"
693	@echo "  bl32           Build the BL32 binary. If ARCH=aarch32, then "
694	@echo "                 this builds secure payload specified by AARCH32_SP"
695	@echo "  certificates   Build the certificates (requires 'GENERATE_COT=1')"
696	@echo "  fip            Build the Firmware Image Package (FIP)"
697	@echo "  fwu_fip        Build the FWU Firmware Image Package (FIP)"
698	@echo "  checkcodebase  Check the coding style of the entire source tree"
699	@echo "  checkpatch     Check the coding style on changes in the current"
700	@echo "                 branch against BASE_COMMIT (default origin/master)"
701	@echo "  clean          Clean the build for the selected platform"
702	@echo "  cscope         Generate cscope index"
703	@echo "  distclean      Remove all build artifacts for all platforms"
704	@echo "  certtool       Build the Certificate generation tool"
705	@echo "  fiptool        Build the Firmware Image Package (FIP) creation tool"
706	@echo ""
707	@echo "Note: most build targets require PLAT to be set to a specific platform."
708	@echo ""
709	@echo "example: build all targets for the FVP platform:"
710	@echo "  CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all"
711