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Achin Gupta4f6ad662013-10-25 09:08:21 +01001#
Jimmy Brisson26c5b5c2020-06-22 14:18:42 -05002# Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
Achin Gupta4f6ad662013-10-25 09:08:21 +01003#
dp-armfa3cf0b2017-05-03 09:38:09 +01004# SPDX-License-Identifier: BSD-3-Clause
Achin Gupta4f6ad662013-10-25 09:08:21 +01005#
6
Jeenu Viswambharan19a0ace2014-05-15 14:40:58 +01007#
Juan Castillo04be3a52014-06-30 11:41:46 +01008# Trusted Firmware Version
9#
Soby Mathewd42eaee2018-10-01 16:16:34 +010010VERSION_MAJOR := 2
Manish V Badarkhe73b78352020-10-08 02:33:17 +010011VERSION_MINOR := 4
Juan Castillo04be3a52014-06-30 11:41:46 +010012
Juan Castillo396644b2015-10-22 11:34:44 +010013# Default goal is build all images
14.DEFAULT_GOAL := all
15
Douglas Raillard527cd902016-12-28 14:47:50 +000016# 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
Evan Lloydf2697142015-12-02 18:17:37 +000021MAKE_HELPERS_DIRECTORY := make_helpers/
22include ${MAKE_HELPERS_DIRECTORY}build_macros.mk
Evan Lloyda71d2592015-12-02 18:56:06 +000023include ${MAKE_HELPERS_DIRECTORY}build_env.mk
Juan Castilloa3487d12015-08-18 14:23:04 +010024
25################################################################################
Jeenu Viswambharan615ff392016-10-24 14:31:51 +010026# Default values for build configurations, and their dependencies
Juan Castilloa3487d12015-08-18 14:23:04 +010027################################################################################
Jeenu Viswambharan19a0ace2014-05-15 14:40:58 +010028
Jeenu Viswambharan615ff392016-10-24 14:31:51 +010029include ${MAKE_HELPERS_DIRECTORY}defaults.mk
dp-arm3cac7862016-09-19 11:18:44 +010030
Antonio Nino Diaz808c2292017-04-18 15:16:05 +010031# Assertions enabled for DEBUG builds by default
Antonio Nino Diaz808c2292017-04-18 15:16:05 +010032ENABLE_ASSERTIONS := ${DEBUG}
Jeenu Viswambharan615ff392016-10-24 14:31:51 +010033ENABLE_PMF := ${ENABLE_RUNTIME_INSTRUMENTATION}
34PLAT := ${DEFAULT_PLAT}
Achin Gupta4f6ad662013-10-25 09:08:21 +010035
Juan Castilloa3487d12015-08-18 14:23:04 +010036################################################################################
37# Checkpatch script options
38################################################################################
39
Sandrine Bailleux0b5a1582016-06-02 11:19:59 +010040CHECKCODE_ARGS := --no-patch
Dan Handleyd7b59e42016-06-02 17:15:13 +010041# Do not check the coding style on imported library files or documentation files
Gilad Ben-Yossef033327a2019-05-15 09:24:04 +030042INC_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/*)))
Dan Handleyd7b59e42016-06-02 17:15:13 +010049INC_LIB_DIRS_TO_CHECK := $(sort $(filter-out \
Dan Handley3a355712016-06-02 18:21:02 +010050 include/lib/libfdt \
Roberto Vargas0f8f9852018-05-08 10:27:10 +010051 include/lib/libc, \
Dan Handleyd7b59e42016-06-02 17:15:13 +010052 $(wildcard include/lib/*)))
53INC_DIRS_TO_CHECK := $(sort $(filter-out \
Gilad Ben-Yossef033327a2019-05-15 09:24:04 +030054 include/lib \
55 include/drivers, \
Dan Handleyd7b59e42016-06-02 17:15:13 +010056 $(wildcard include/*)))
57LIB_DIRS_TO_CHECK := $(sort $(filter-out \
dp-arme3cc8382017-05-04 12:15:35 +010058 lib/compiler-rt \
Antonio Nino Diazd84f88e2017-01-16 17:20:45 +000059 lib/libfdt% \
Roberto Vargas0f8f9852018-05-08 10:27:10 +010060 lib/libc, \
Dan Handleyd7b59e42016-06-02 17:15:13 +010061 $(wildcard lib/*)))
62ROOT_DIRS_TO_CHECK := $(sort $(filter-out \
63 lib \
64 include \
65 docs \
Paul Beesleyadfab5b2019-03-07 16:42:31 +000066 %.rst, \
Dan Handleyd7b59e42016-06-02 17:15:13 +010067 $(wildcard *)))
68CHECK_PATHS := ${ROOT_DIRS_TO_CHECK} \
69 ${INC_DIRS_TO_CHECK} \
70 ${INC_LIB_DIRS_TO_CHECK} \
Gilad Ben-Yossef033327a2019-05-15 09:24:04 +030071 ${LIB_DIRS_TO_CHECK} \
72 ${INC_DRV_DIRS_TO_CHECK} \
73 ${INC_ARM_DIRS_TO_CHECK}
Ian Spray36eaaf32014-01-30 17:25:28 +000074
Juan Castilloa3487d12015-08-18 14:23:04 +010075
76################################################################################
77# Process build options
78################################################################################
79
80# Verbose flag
Jeenu Viswambharan19a0ace2014-05-15 14:40:58 +010081ifeq (${V},0)
Evan Lloydf4ba5ca2015-12-03 09:47:51 +000082 Q:=@
Andre Przywaracf2bb082018-09-27 10:56:05 +010083 ECHO:=@echo
Juan Castilloa3487d12015-08-18 14:23:04 +010084 CHECKCODE_ARGS += --no-summary --terse
Achin Gupta4f6ad662013-10-25 09:08:21 +010085else
Evan Lloydf4ba5ca2015-12-03 09:47:51 +000086 Q:=
Antonio Nino Diazffd122b2018-10-19 15:44:30 +010087 ECHO:=$(ECHO_QUIET)
Andre Przywaracf2bb082018-09-27 10:56:05 +010088endif
89
90ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),)
91 Q:=@
Antonio Nino Diazffd122b2018-10-19 15:44:30 +010092 ECHO:=$(ECHO_QUIET)
Achin Gupta4f6ad662013-10-25 09:08:21 +010093endif
Andre Przywaracf2bb082018-09-27 10:56:05 +010094
95export Q ECHO
Jeenu Viswambharan2f2cef42014-02-19 09:38:18 +000096
Juan Castilloa3487d12015-08-18 14:23:04 +010097# The cert_create tool cannot generate certificates individually, so we use the
98# target 'certificates' to create them all
99ifneq (${GENERATE_COT},0)
100 FIP_DEPS += certificates
Yatharth Kochard1a93432015-10-12 12:33:47 +0100101 FWU_FIP_DEPS += fwu_certificates
Juan Castilloa3487d12015-08-18 14:23:04 +0100102endif
103
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100104# 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
Alexei Fedorove039e482020-06-19 14:33:49 +0100124else ifeq (${BRANCH_PROTECTION},4)
125 # Turn on branch target identification mechanism
126 BP_OPTION := bti
127 ENABLE_BTI := 1
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100128else
129 $(error Unknown BRANCH_PROTECTION value ${BRANCH_PROTECTION})
130endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100131
Soby Mathewad042012019-09-25 14:03:41 +0100132# USE_SPINLOCK_CAS requires AArch64 build
133ifeq (${USE_SPINLOCK_CAS},1)
134ifneq (${ARCH},aarch64)
135 $(error USE_SPINLOCK_CAS requires AArch64)
136else
137 $(info USE_SPINLOCK_CAS is an experimental feature)
138endif
139endif
140
Olivier Deprezcb4c5622019-09-19 17:46:46 +0200141# USE_DEBUGFS experimental feature recommended only in debug builds
142ifeq (${USE_DEBUGFS},1)
143ifeq (${DEBUG},1)
144 $(warning DEBUGFS experimental feature is enabled.)
145else
146 $(warning DEBUGFS experimental, recommended in DEBUG builds ONLY)
147endif
148endif
149
Sumit Gargeec52442019-11-14 16:33:45 +0530150ifneq (${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
Juan Castilloa3487d12015-08-18 14:23:04 +0100158################################################################################
159# Toolchain
160################################################################################
161
dp-arme95aaa62017-05-02 11:09:11 +0100162HOSTCC := gcc
163export HOSTCC
164
Juan Castilloa3487d12015-08-18 14:23:04 +0100165CC := ${CROSS_COMPILE}gcc
166CPP := ${CROSS_COMPILE}cpp
167AS := ${CROSS_COMPILE}gcc
168AR := ${CROSS_COMPILE}ar
Roberto Vargas1fd0d1b2018-04-13 14:26:47 +0100169LINKER := ${CROSS_COMPILE}ld
Juan Castilloa3487d12015-08-18 14:23:04 +0100170OC := ${CROSS_COMPILE}objcopy
171OD := ${CROSS_COMPILE}objdump
172NM := ${CROSS_COMPILE}nm
173PP := ${CROSS_COMPILE}gcc -E
Soby Mathewab4181d2017-12-14 17:44:56 +0000174DTC := dtc
Juan Castilloa3487d12015-08-18 14:23:04 +0100175
Julius Wernerb1f64a72018-01-10 15:12:47 -0800176# Use ${LD}.bfd instead if it exists (as absolute path or together with $PATH).
177ifneq ($(strip $(wildcard ${LD}.bfd) \
Roberto Vargas1fd0d1b2018-04-13 14:26:47 +0100178 $(foreach dir,$(subst :, ,${PATH}),$(wildcard ${dir}/${LINKER}.bfd))),)
179LINKER := ${LINKER}.bfd
Julius Wernerb1f64a72018-01-10 15:12:47 -0800180endif
181
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100182ifeq (${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
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000187
Alexei Fedorov132e6652020-12-07 16:38:53 +0000188# Set the compiler's target architecture profile based on
189# ARM_ARCH_MAJOR ARM_ARCH_MINOR options
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000190ifeq (${ARM_ARCH_MINOR},0)
Alexei Fedorov132e6652020-12-07 16:38:53 +0000191march32-directive = -march=armv${ARM_ARCH_MAJOR}-a
192march64-directive = -march=armv${ARM_ARCH_MAJOR}-a
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000193else
Alexei Fedorov132e6652020-12-07 16:38:53 +0000194march32-directive = -march=armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a
195march64-directive = -march=armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000196endif
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100197endif
198
Manish V Badarkhe75c972a2020-03-22 05:06:38 +0000199# Memory tagging is supported in architecture Armv8.5-A AArch64 and onwards
200ifeq ($(ARCH), aarch64)
Sami Mujawar1bc7b0e2020-04-23 09:28:37 +0100201# 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)))"
Manish V Badarkhe75c972a2020-03-22 05:06:38 +0000203mem_tag_arch_support = yes
204endif
205endif
206
Alexei Fedorov132e6652020-12-07 16:38:53 +0000207# Get architecture feature modifiers
208arch-features = ${ARM_ARCH_FEATURE}
209
210# Enable required options for memory stack tagging.
211# Currently, these options are enabled only for clang and armclang compiler.
Manish V Badarkhe75c972a2020-03-22 05:06:38 +0000212ifeq (${SUPPORT_STACK_MEMTAG},yes)
213ifdef mem_tag_arch_support
Alexei Fedorov132e6652020-12-07 16:38:53 +0000214# Check for armclang and clang compilers
Manish V Badarkhe75c972a2020-03-22 05:06:38 +0000215ifneq ( ,$(filter $(notdir $(CC)),armclang clang))
Alexei Fedorov132e6652020-12-07 16:38:53 +0000216# Add "memtag" architecture feature modifier if not specified
217ifeq ( ,$(findstring memtag,$(arch-features)))
218arch-features := $(arch-features)+memtag
219endif # memtag
Manish V Badarkhe75c972a2020-03-22 05:06:38 +0000220ifeq ($(notdir $(CC)),armclang)
221TF_CFLAGS += -mmemtag-stack
222else ifeq ($(notdir $(CC)),clang)
223TF_CFLAGS += -fsanitize=memtag
Alexei Fedorov132e6652020-12-07 16:38:53 +0000224endif # armclang
225endif # armclang clang
Manish V Badarkhe75c972a2020-03-22 05:06:38 +0000226else
227$(error "Error: stack memory tagging is not supported for architecture \
228 ${ARCH},armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a")
Alexei Fedorov132e6652020-12-07 16:38:53 +0000229endif # mem_tag_arch_support
230endif # SUPPORT_STACK_MEMTAG
231
232# Set the compiler's architecture feature modifiers
233ifneq ($(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)
Manish V Badarkhe75c972a2020-03-22 05:06:38 +0000240endif
Alexei Fedorov132e6652020-12-07 16:38:53 +0000241# Print features
242$(info Arm Architecture Features specified: $(subst +, ,$(arch-features)))
243endif # arch-features
Manish V Badarkhe75c972a2020-03-22 05:06:38 +0000244
Tomas Pilarde164b02020-10-29 13:01:16 +0000245# Determine if FEAT_RNG is supported
246ENABLE_FEAT_RNG = $(if $(findstring rng,${arch-features}),1,0)
247
Varun Wadekardbbca2f2018-12-12 15:22:27 -0800248ifneq ($(findstring armclang,$(notdir $(CC))),)
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100249TF_CFLAGS_aarch32 = -target arm-arm-none-eabi $(march32-directive)
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000250TF_CFLAGS_aarch64 = -target aarch64-arm-none-eabi $(march64-directive)
Roberto Vargas1fd0d1b2018-04-13 14:26:47 +0100251LD = $(LINKER)
Roberto Vargas69a01e72018-04-16 11:29:45 +0100252AS = $(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH))
Roberto Vargas48df32d2018-05-10 13:38:19 +0100253CPP = $(CC) -E $(TF_CFLAGS_$(ARCH))
254PP = $(CC) -E $(TF_CFLAGS_$(ARCH))
dp-armb3bfd342017-05-03 16:30:32 +0100255else ifneq ($(findstring clang,$(notdir $(CC))),)
Arve Hjønnevåg8ed49ab2020-02-04 15:50:24 -0800256CLANG_CCDIR = $(if $(filter-out ./,$(dir $(CC))),$(dir $(CC)),)
Yann Gautier60af71c2018-12-18 10:46:34 +0100257TF_CFLAGS_aarch32 = $(target32-directive) $(march32-directive)
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000258TF_CFLAGS_aarch64 = -target aarch64-elf $(march64-directive)
Arve Hjønnevåg8ed49ab2020-02-04 15:50:24 -0800259LD = $(CLANG_CCDIR)ld.lld
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100260ifeq (, $(shell which $(LD)))
261$(error "No $(LD) in PATH, make sure it is installed or set LD to a different linker")
262endif
Roberto Vargas69a01e72018-04-16 11:29:45 +0100263AS = $(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH))
Roberto Vargas48df32d2018-05-10 13:38:19 +0100264CPP = $(CC) -E
265PP = $(CC) -E
zelalem-aweked5f45272019-11-12 16:20:17 -0600266else ifneq ($(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)
dp-arm320e8442017-05-02 12:00:08 +0100278else
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100279TF_CFLAGS_aarch32 = $(march32-directive)
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000280TF_CFLAGS_aarch64 = $(march64-directive)
Roberto Vargas1fd0d1b2018-04-13 14:26:47 +0100281LD = $(LINKER)
dp-arm320e8442017-05-02 12:00:08 +0100282endif
283
Ahmad Fatoum2633cbb2020-02-25 11:25:08 +0100284# Process Debug flag
285$(eval $(call add_define,DEBUG))
286ifneq (${DEBUG}, 0)
287 BUILD_TYPE := debug
288 TF_CFLAGS += -g
289
290 ifneq ($(findstring clang,$(notdir $(CC))),)
291 ASFLAGS += -g
292 else
293 ASFLAGS += -g -Wa,--gdwarf-2
294 endif
295
296 # Use LOG_LEVEL_INFO by default for debug builds
297 LOG_LEVEL := 40
298else
299 BUILD_TYPE := release
300 # Use LOG_LEVEL_NOTICE by default for release builds
301 LOG_LEVEL := 20
302endif
303
Peiyuan Song44f8f472020-04-25 16:53:43 +0800304# Default build string (git branch and commit)
305ifeq (${BUILD_STRING},)
306 BUILD_STRING := $(shell git describe --always --dirty --tags 2> /dev/null)
307endif
308VERSION_STRING := v${VERSION_MAJOR}.${VERSION_MINOR}(${BUILD_TYPE}):${BUILD_STRING}
309
Antonio Nino Diaz80914a82018-08-08 16:28:43 +0100310ifeq (${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 ${AARCH32_INSTRUCTION_SET})
316endif
317
Sandrine Bailleux1aa72ec2018-07-03 09:14:45 +0200318TF_CFLAGS_aarch32 += -mno-unaligned-access
dp-arm320e8442017-05-02 12:00:08 +0100319TF_CFLAGS_aarch64 += -mgeneral-regs-only -mstrict-align
Soby Mathewa1941252016-05-05 14:33:33 +0100320
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100321ifneq (${BP_OPTION},none)
322TF_CFLAGS_aarch64 += -mbranch-protection=${BP_OPTION}
323endif
324
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100325ASFLAGS_aarch32 = $(march32-directive)
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000326ASFLAGS_aarch64 = $(march64-directive)
Antonio Nino Diaz25cda672019-02-19 11:53:51 +0000327
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100328# General warnings
329WARNINGS := -Wall -Wmissing-include-dirs -Wunused \
Justin Chadwell7d0e3ba2019-09-17 15:21:50 +0100330 -Wdisabled-optimization -Wvla -Wshadow \
Madhukar Pappireddyfc9b4112019-12-23 14:49:52 -0600331 -Wno-unused-parameter -Wredundant-decls
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100332
333# Additional warnings
334# Level 1
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100335WARNING1 := -Wextra
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100336WARNING1 += -Wmissing-format-attribute
337WARNING1 += -Wmissing-prototypes
338WARNING1 += -Wold-style-definition
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100339
Justin Chadwell7d0e3ba2019-09-17 15:21:50 +0100340# Level 2
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100341WARNING2 := -Waggregate-return
342WARNING2 += -Wcast-align
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100343WARNING2 += -Wnested-externs
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100344
345WARNING3 := -Wbad-function-cast
346WARNING3 += -Wcast-qual
347WARNING3 += -Wconversion
348WARNING3 += -Wpacked
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100349WARNING3 += -Wpointer-arith
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100350WARNING3 += -Wswitch-default
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100351
352ifeq (${W},1)
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100353WARNINGS += $(WARNING1)
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100354else ifeq (${W},2)
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100355WARNINGS += $(WARNING1) $(WARNING2)
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100356else ifeq (${W},3)
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100357WARNINGS += $(WARNING1) $(WARNING2) $(WARNING3)
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100358endif
359
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100360# Compiler specific warnings
Ambroise Vincent067e4d92019-05-24 12:47:43 +0100361ifeq ($(findstring clang,$(notdir $(CC))),)
Justin Chadwell7a914232019-07-03 14:15:56 +0100362# not using clang
Justin Chadwell42d18ca2019-09-18 14:13:42 +0100363WARNINGS += -Wunused-but-set-variable -Wmaybe-uninitialized \
364 -Wpacked-bitfield-compat -Wshift-overflow=2 \
365 -Wlogical-op
Justin Chadwell7a914232019-07-03 14:15:56 +0100366else
367# using clang
Justin Chadwell42d18ca2019-09-18 14:13:42 +0100368WARNINGS += -Wshift-overflow -Wshift-sign-overflow \
369 -Wlogical-op-parentheses
Ambroise Vincent067e4d92019-05-24 12:47:43 +0100370endif
371
Yann Gautier957c3532018-12-10 18:08:53 +0100372ifneq (${E},0)
373ERRORS := -Werror
374endif
375
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100376CPPFLAGS = ${DEFINES} ${INCLUDES} ${MBEDTLS_INC} -nostdinc \
377 $(ERRORS) $(WARNINGS)
Masahiro Yamada0dec9fa2016-12-22 12:51:53 +0900378ASFLAGS += $(CPPFLAGS) $(ASFLAGS_$(ARCH)) \
Julius Werner53456fc2019-07-09 13:49:11 -0700379 -ffreestanding -Wa,--fatal-warnings
Masahiro Yamada0dec9fa2016-12-22 12:51:53 +0900380TF_CFLAGS += $(CPPFLAGS) $(TF_CFLAGS_$(ARCH)) \
Samuel Holland23f5e542019-10-20 16:11:25 -0500381 -ffunction-sections -fdata-sections \
382 -ffreestanding -fno-builtin -fno-common \
383 -Os -std=gnu99
Juan Castilloa3487d12015-08-18 14:23:04 +0100384
Justin Chadwell83e04882019-08-20 11:01:52 +0100385ifeq (${SANITIZE_UB},on)
386TF_CFLAGS += -fsanitize=undefined -fno-sanitize-recover
387endif
388ifeq (${SANITIZE_UB},trap)
389TF_CFLAGS += -fsanitize=undefined -fno-sanitize-recover \
390 -fsanitize-undefined-trap-on-error
391endif
392
david cunado34ab6092017-11-30 21:58:01 +0000393GCC_V_OUTPUT := $(shell $(CC) -v 2>&1)
david cunado34ab6092017-11-30 21:58:01 +0000394
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100395# LD = armlink
Varun Wadekar4d034c52019-01-11 14:47:48 -0800396ifneq ($(findstring armlink,$(notdir $(LD))),)
397TF_LDFLAGS += --diag_error=warning --lto_level=O1
398TF_LDFLAGS += --remove --info=unused,unusedsymbols
zelalem-aweked5f45272019-11-12 16:20:17 -0600399TF_LDFLAGS += $(TF_LDFLAGS_$(ARCH))
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100400
401# LD = gcc (used when GCC LTO is enabled)
zelalem-aweked5f45272019-11-12 16:20:17 -0600402else 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_$(ARCH)))
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100418
419# LD = gcc-ld (ld) or llvm-ld (ld.lld) or other
Varun Wadekar4d034c52019-01-11 14:47:48 -0800420else
Douglas Raillardd0c82732017-06-22 14:44:48 +0100421TF_LDFLAGS += --fatal-warnings -O1
422TF_LDFLAGS += --gc-sections
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100423# ld.lld doesn't recognize the errata flags,
424# therefore don't add those in that case
425ifeq ($(findstring ld.lld,$(notdir $(LD))),)
Douglas Raillardd0c82732017-06-22 14:44:48 +0100426TF_LDFLAGS += $(TF_LDFLAGS_$(ARCH))
zelalem-aweked5f45272019-11-12 16:20:17 -0600427endif
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100428endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100429
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000430DTC_FLAGS += -I dts -O dtb
Louis Mayencourt6b232d92020-02-28 16:57:30 +0000431DTC_CPPFLAGS += -P -nostdinc -Iinclude -Ifdts -undef \
432 -x assembler-with-cpp $(DEFINES)
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000433
Alexei Fedorov25d7c882020-03-20 18:38:55 +0000434ifeq ($(MEASURED_BOOT),1)
435DTC_CPPFLAGS += -DMEASURED_BOOT -DBL2_HASH_SIZE=${TCG_DIGEST_SIZE}
436endif
437
Juan Castilloa3487d12015-08-18 14:23:04 +0100438################################################################################
439# Common sources and include directories
440################################################################################
dp-arme3cc8382017-05-04 12:15:35 +0100441include lib/compiler-rt/compiler-rt.mk
Juan Castilloa3487d12015-08-18 14:23:04 +0100442
443BL_COMMON_SOURCES += common/bl_common.c \
Soby Mathewaaf15f52017-09-04 11:49:29 +0100444 common/tf_log.c \
Soby Mathewa1941252016-05-05 14:33:33 +0100445 common/${ARCH}/debug.S \
Julius Werner03020da2018-11-27 22:10:56 -0800446 drivers/console/multi_console.c \
Soby Mathewa1941252016-05-05 14:33:33 +0100447 lib/${ARCH}/cache_helpers.S \
448 lib/${ARCH}/misc_helpers.S \
Soby Mathew2f38ce32018-02-08 17:45:12 +0000449 plat/common/plat_bl_common.c \
Soby Mathewaaf15f52017-09-04 11:49:29 +0100450 plat/common/plat_log_common.c \
dp-arm230011c2017-03-07 11:02:47 +0000451 plat/common/${ARCH}/plat_common.c \
Soby Mathewa1941252016-05-05 14:33:33 +0100452 plat/common/${ARCH}/platform_helpers.S \
Roberto Vargas0f8f9852018-05-08 10:27:10 +0100453 ${COMPILER_RT_SRCS}
Ryan Harkind7a6b0f2014-01-13 14:40:13 +0000454
Antonio Nino Diazeea20fc2018-08-16 15:42:44 +0100455ifeq ($(notdir $(CC)),armclang)
456BL_COMMON_SOURCES += lib/${ARCH}/armclang_printf.S
457endif
458
Justin Chadwell83e04882019-08-20 11:01:52 +0100459ifeq (${SANITIZE_UB},on)
460BL_COMMON_SOURCES += plat/common/ubsan.c
461endif
462
Yann Gautier2cf1dbc2018-06-18 16:00:23 +0200463INCLUDES += -Iinclude \
Antonio Nino Diaz8d1ade62018-12-17 17:20:57 +0000464 -Iinclude/arch/${ARCH} \
Antonio Nino Diaze0f90632018-12-14 00:18:21 +0000465 -Iinclude/lib/cpus/${ARCH} \
466 -Iinclude/lib/el3_runtime/${ARCH} \
467 ${PLAT_INCLUDES} \
468 ${SPD_INCLUDES}
469
Antonio Nino Diazc3a2cf22018-11-19 11:48:30 +0000470include common/backtrace/backtrace.mk
471
Juan Castilloa3487d12015-08-18 14:23:04 +0100472################################################################################
473# Generic definitions
474################################################################################
475
Evan Lloydf2697142015-12-02 18:17:37 +0000476include ${MAKE_HELPERS_DIRECTORY}plat_helpers.mk
477
Grant Likely388248a2020-07-30 08:50:10 +0100478ifeq (${BUILD_BASE},)
479 BUILD_BASE := ./build
480endif
481BUILD_PLAT := $(abspath ${BUILD_BASE})/${PLAT}/${BUILD_TYPE}
Achin Gupta4f6ad662013-10-25 09:08:21 +0100482
Evan Lloydf2697142015-12-02 18:17:37 +0000483SPDS := $(sort $(filter-out none, $(patsubst services/spd/%,%,$(wildcard services/spd/*))))
Ryan Harkin72ee3312014-01-15 16:55:07 +0000484
Juan Castilloa3487d12015-08-18 14:23:04 +0100485# Platforms providing their own TBB makefile may override this value
486INCLUDE_TBBR_MK := 1
487
Jeenu Viswambharane5c39fd2014-05-16 11:38:10 +0100488
Juan Castilloa3487d12015-08-18 14:23:04 +0100489################################################################################
490# Include SPD Makefile if one has been specified
491################################################################################
492
493ifneq (${SPD},none)
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000494 ifeq (${ARCH},aarch32)
Sandrine Bailleux247e3392018-10-03 14:56:38 +0200495 $(error "Error: SPD is incompatible with AArch32.")
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000496 endif
497
498 ifdef EL3_PAYLOAD_BASE
Sandrine Bailleux03897bb2015-11-26 16:31:34 +0000499 $(warning "SPD and EL3_PAYLOAD_BASE are incompatible build options.")
500 $(warning "The SPD and its BL32 companion will be present but ignored.")
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000501 endif
Achin Gupta60b7b8a2019-10-11 15:50:43 +0100502
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000503 ifeq (${SPD},spmd)
Max Shvetsove7fd80e2020-02-25 13:55:00 +0000504 $(warning "SPMD is an experimental feature")
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000505 # SPMD is located in std_svc directory
506 SPD_DIR := std_svc
Juan Castilloa3487d12015-08-18 14:23:04 +0100507
Max Shvetsove7fd80e2020-02-25 13:55:00 +0000508 ifeq ($(SPMD_SPM_AT_SEL2),1)
509 ifeq ($(CTX_INCLUDE_EL2_REGS),0)
510 $(error SPMD with SPM at S-EL2 requires CTX_INCLUDE_EL2_REGS option)
511 endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100512 endif
Olivier Deprezbcaa0682020-04-01 21:28:26 +0200513
514 ifeq ($(findstring optee_sp,$(ARM_SPMC_MANIFEST_DTS)),optee_sp)
515 DTC_CPPFLAGS += -DOPTEE_SP_FW_CONFIG
516 endif
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000517 else
518 # All other SPDs in spd directory
519 SPD_DIR := spd
520 endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100521
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000522 # 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.
Juan Castilloa3487d12015-08-18 14:23:04 +0100540endif
541
Douglas Raillard306593d2017-02-24 18:14:15 +0000542################################################################################
Juan Castilloa3487d12015-08-18 14:23:04 +0100543# Include the platform specific Makefile after the SPD Makefile (the platform
544# makefile may use all previous definitions in this file)
545################################################################################
Jeenu Viswambharane5c39fd2014-05-16 11:38:10 +0100546
Dan Handley81be1002015-03-27 17:44:35 +0000547include ${PLAT_MAKEFILE_FULL}
Jon Medhurst66573cb2014-02-13 15:19:28 +0000548
Masahiro Yamadae2395b42017-11-04 03:12:28 +0900549$(eval $(call MAKE_PREREQ_DIR,${BUILD_PLAT}))
550
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100551ifeq (${ARM_ARCH_MAJOR},7)
552include make_helpers/armv7-a-cpus.mk
553endif
554
Masahiro Yamadac3ca8812020-01-17 13:44:37 +0900555PIE_FOUND := $(findstring --enable-default-pie,${GCC_V_OUTPUT})
556ifneq ($(PIE_FOUND),)
557 TF_CFLAGS += -fno-PIE
558endif
559
560ifneq ($(findstring gcc,$(notdir $(LD))),)
561 PIE_LDFLAGS += -Wl,-pie -Wl,--no-dynamic-linker
Soby Mathew078f1a42018-08-28 11:13:55 +0100562else
Masahiro Yamadac3ca8812020-01-17 13:44:37 +0900563 PIE_LDFLAGS += -pie --no-dynamic-linker
564endif
565
566ifeq ($(ENABLE_PIE),1)
Masahiro Yamada65d699d2020-01-17 13:45:02 +0900567ifeq ($(BL2_AT_EL3),1)
568ifneq ($(BL2_IN_XIP_MEM),1)
569 BL2_CFLAGS += -fpie
570 BL2_LDFLAGS += $(PIE_LDFLAGS)
571endif
572endif
Masahiro Yamadac3ca8812020-01-17 13:44:37 +0900573 BL31_CFLAGS += -fpie
574 BL31_LDFLAGS += $(PIE_LDFLAGS)
Masahiro Yamadade634f82020-01-17 13:45:14 +0900575ifeq ($(ARCH),aarch64)
576 BL32_CFLAGS += -fpie
577 BL32_LDFLAGS += $(PIE_LDFLAGS)
578endif
Soby Mathew078f1a42018-08-28 11:13:55 +0100579endif
580
Masahiro Yamada003dd762020-03-26 13:18:48 +0900581ifeq (${ARCH},aarch64)
Masahiro Yamadaf1441572020-04-01 14:20:58 +0900582BL1_CPPFLAGS += -DIMAGE_AT_EL3
Masahiro Yamada003dd762020-03-26 13:18:48 +0900583ifeq ($(BL2_AT_EL3),1)
Masahiro Yamadaf1441572020-04-01 14:20:58 +0900584BL2_CPPFLAGS += -DIMAGE_AT_EL3
Masahiro Yamada003dd762020-03-26 13:18:48 +0900585else
Masahiro Yamadaf1441572020-04-01 14:20:58 +0900586BL2_CPPFLAGS += -DIMAGE_AT_EL1
Masahiro Yamada003dd762020-03-26 13:18:48 +0900587endif
Masahiro Yamadaf1441572020-04-01 14:20:58 +0900588BL2U_CPPFLAGS += -DIMAGE_AT_EL1
589BL31_CPPFLAGS += -DIMAGE_AT_EL3
590BL32_CPPFLAGS += -DIMAGE_AT_EL1
Masahiro Yamada003dd762020-03-26 13:18:48 +0900591endif
592
Sandrine Bailleuxd4817592016-01-13 14:57:38 +0000593# Include the CPU specific operations makefile, which provides default
594# values for all CPU errata workarounds and CPU specific optimisations.
595# This can be overridden by the platform.
Soby Mathew937488b2014-09-22 14:13:34 +0100596include lib/cpus/cpu-ops.mk
Soby Mathew802f8652014-08-14 16:19:29 +0100597
dp-armcdd03cb2017-02-15 11:07:55 +0000598ifeq (${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 ${AARCH32_SP_MAKE}
614endif
615
Varun Wadekar3f9002c2019-01-31 09:22:30 -0800616endif
617
618################################################################################
619# Include libc if not overridden
620################################################################################
621ifeq (${OVERRIDE_LIBC},0)
622include lib/libc/libc.mk
dp-armcdd03cb2017-02-15 11:07:55 +0000623endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100624
625################################################################################
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000626# Check incompatible options
627################################################################################
628
629ifdef EL3_PAYLOAD_BASE
Antonio Nino Diaz2b8277b2016-04-06 17:31:57 +0100630 ifdef PRELOADED_BL33_BASE
631 $(warning "PRELOADED_BL33_BASE and EL3_PAYLOAD_BASE are \
632 incompatible build options. EL3_PAYLOAD_BASE has priority.")
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000633 endif
Qixiang Xube9bd9d2017-08-24 11:03:23 +0800634 ifneq (${GENERATE_COT},0)
635 $(error "GENERATE_COT and EL3_PAYLOAD_BASE are incompatible build options.")
636 endif
637 ifneq (${TRUSTED_BOARD_BOOT},0)
638 $(error "TRUSTED_BOARD_BOOT and EL3_PAYLOAD_BASE are incompatible build options.")
639 endif
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000640endif
641
642ifeq (${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
Antonio Nino Diaz2b8277b2016-04-06 17:31:57 +0100647 ifdef PRELOADED_BL33_BASE
648 $(warning "BL33 image is not needed when option \
649 PRELOADED_BL33_BASE is used and won't be added to the FIP \
650 file.")
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000651 endif
652endif
653
Jeenu Viswambharan7ed2cbc2017-01-06 16:14:42 +0000654# When building for systems with hardware-assisted coherency, there's no need to
655# use USE_COHERENT_MEM. Require that USE_COHERENT_MEM must be set to 0 too.
656ifeq ($(HW_ASSISTED_COHERENCY)-$(USE_COHERENT_MEM),1-1)
657$(error USE_COHERENT_MEM cannot be enabled with HW_ASSISTED_COHERENCY)
658endif
Yatharth Kocharf528faf2016-06-28 16:58:26 +0100659
Jiafei Pan43a7bf42018-03-21 07:20:09 +0000660#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$(error "BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is enabled")
663endif
664
Jeenu Viswambharan9a7ce2f2018-04-04 16:07:11 +0100665# For RAS_EXTENSION, require that EAs are handled in EL3 first
666ifeq ($(RAS_EXTENSION),1)
667 ifneq ($(HANDLE_EA_EL3_FIRST),1)
668 $(error For RAS_EXTENSION, HANDLE_EA_EL3_FIRST must also be 1)
669 endif
670endif
671
Jeenu Viswambharanf00da742017-12-08 12:13:51 +0000672# When FAULT_INJECTION_SUPPORT is used, require that RAS_EXTENSION is enabled
673ifeq ($(FAULT_INJECTION_SUPPORT),1)
674 ifneq ($(RAS_EXTENSION),1)
675 $(error For FAULT_INJECTION_SUPPORT, RAS_EXTENSION must also be 1)
676 endif
677endif
678
Roberto Vargas025946a2018-09-24 17:20:48 +0100679# DYN_DISABLE_AUTH can be set only when TRUSTED_BOARD_BOOT=1
Soby Mathew9fe88042018-03-26 12:43:37 +0100680ifeq ($(DYN_DISABLE_AUTH), 1)
681 ifeq (${TRUSTED_BOARD_BOOT}, 0)
682 $(error "TRUSTED_BOARD_BOOT must be enabled for DYN_DISABLE_AUTH to be set.")
683 endif
Soby Mathew9fe88042018-03-26 12:43:37 +0100684endif
685
Balint Dobszayd0dbd5e2019-12-18 15:28:00 +0100686# SDEI_IN_FCONF is only supported when SDEI_SUPPORT is enabled.
687ifeq ($(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
Manish V Badarkhead339892020-06-29 10:32:53 +0100692ifeq ($(COT_DESC_IN_DTB),1)
693 $(info CoT in device tree is an experimental feature)
694endif
695
Antonio Nino Diaz25cda672019-02-19 11:53:51 +0000696# If pointer authentication is used in the firmware, make sure that all the
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100697# registers associated to it are also saved and restored.
698# Not doing it would leak the value of the keys used by EL3 to EL1 and S-EL1.
Antonio Nino Diaz25cda672019-02-19 11:53:51 +0000699ifeq ($(ENABLE_PAUTH),1)
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100700 ifeq ($(CTX_INCLUDE_PAUTH_REGS),0)
701 $(error Pointer Authentication requires CTX_INCLUDE_PAUTH_REGS=1)
Alexei Fedorov2831d582019-03-13 11:05:07 +0000702 endif
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100703endif
704
705ifeq ($(CTX_INCLUDE_PAUTH_REGS),1)
706 ifneq (${ARCH},aarch64)
707 $(error CTX_INCLUDE_PAUTH_REGS requires AArch64)
708 else
709 $(info CTX_INCLUDE_PAUTH_REGS is an experimental feature)
Antonio Nino Diaz25cda672019-02-19 11:53:51 +0000710 endif
711endif
712
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100713ifeq ($(ENABLE_PAUTH),1)
714 $(info Pointer Authentication is an experimental feature)
715endif
716
717ifeq ($(ENABLE_BTI),1)
718 $(info Branch Protection is an experimental feature)
719endif
720
Justin Chadwell1c7c13a2019-07-18 14:25:33 +0100721ifeq ($(CTX_INCLUDE_MTE_REGS),1)
722 ifneq (${ARCH},aarch64)
723 $(error CTX_INCLUDE_MTE_REGS requires AArch64)
724 else
725 $(info CTX_INCLUDE_MTE_REGS is an experimental feature)
726 endif
727endif
728
Alexei Fedorov913cb7e2020-01-23 14:27:38 +0000729ifeq ($(MEASURED_BOOT),1)
730 ifneq (${TRUSTED_BOARD_BOOT},1)
Sumit Garg392e4df2019-11-15 10:43:00 +0530731 $(error MEASURED_BOOT requires TRUSTED_BOARD_BOOT=1)
Alexei Fedorov913cb7e2020-01-23 14:27:38 +0000732 else
733 $(info MEASURED_BOOT is an experimental feature)
734 endif
735endif
736
Petre-Ionut Tudore5a6fef2019-11-07 15:18:03 +0000737ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1)
738 ifeq (${ALLOW_RO_XLAT_TABLES}, 1)
739 $(error "ALLOW_RO_XLAT_TABLES requires translation tables library v2")
740 endif
741endif
742
Sumit Garg392e4df2019-11-15 10:43:00 +0530743ifneq (${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 $(info DECRYPTION_SUPPORT is an experimental feature)
748 endif
749endif
750
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000751################################################################################
Juan Castilloa3487d12015-08-18 14:23:04 +0100752# Process platform overrideable behaviour
753################################################################################
754
John Tsichritzis63801cd2019-07-05 14:22:12 +0100755# Using BL2 implies that a BL33 image also needs to be supplied for the FIP and
756# Certificate generation tools. This flag can be overridden by the platform.
Jon Medhurst66573cb2014-02-13 15:19:28 +0000757ifdef BL2_SOURCES
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000758 ifdef EL3_PAYLOAD_BASE
759 # If booting an EL3 payload there is no need for a BL33 image
760 # in the FIP file.
761 NEED_BL33 := no
762 else
Antonio Nino Diaz2b8277b2016-04-06 17:31:57 +0100763 ifdef PRELOADED_BL33_BASE
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000764 # If booting a BL33 preloaded image there is no need of
765 # another one in the FIP file.
766 NEED_BL33 := no
767 else
768 NEED_BL33 ?= yes
769 endif
770 endif
Jon Medhurst66573cb2014-02-13 15:19:28 +0000771endif
Achin Gupta4f6ad662013-10-25 09:08:21 +0100772
Masahiro Yamadae76b4f82017-04-05 19:11:41 +0900773# If SCP_BL2 is given, we always want FIP to include it.
774ifdef SCP_BL2
775 NEED_SCP_BL2 := yes
776endif
777
Soby Mathewbf169232017-11-14 14:10:10 +0000778# For AArch32, BL31 is not currently supported.
779ifneq (${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
Juan Castilloa3487d12015-08-18 14:23:04 +0100789# Process TBB related flags
790ifneq (${GENERATE_COT},0)
791 # Common cert_create options
792 ifneq (${CREATE_KEYS},0)
793 $(eval CRT_ARGS += -n)
Yatharth Kochard1a93432015-10-12 12:33:47 +0100794 $(eval FWU_CRT_ARGS += -n)
Juan Castilloa3487d12015-08-18 14:23:04 +0100795 ifneq (${SAVE_KEYS},0)
796 $(eval CRT_ARGS += -k)
Yatharth Kochard1a93432015-10-12 12:33:47 +0100797 $(eval FWU_CRT_ARGS += -k)
Juan Castilloa3487d12015-08-18 14:23:04 +0100798 endif
799 endif
800 # Include TBBR makefile (unless the platform indicates otherwise)
801 ifeq (${INCLUDE_TBBR_MK},1)
802 include make_helpers/tbbr/tbbr_tools.mk
803 endif
Ryan Harkin25cff832014-01-13 12:37:03 +0000804endif
Achin Gupta4f6ad662013-10-25 09:08:21 +0100805
Masahiro Yamada4d87eb42016-12-25 13:52:22 +0900806ifneq (${FIP_ALIGN},0)
807FIP_ARGS += --align ${FIP_ALIGN}
808endif
809
Juan Castilloa3487d12015-08-18 14:23:04 +0100810################################################################################
Michalis Pappas0f223c52018-03-20 13:01:27 +0800811# Include libraries' Makefile that are used in all BL
812################################################################################
813
814include lib/stack_protector/stack_protector.mk
815
816################################################################################
dp-arm4972ec52016-05-25 16:20:20 +0100817# Auxiliary tools (fiptool, cert_create, etc)
Juan Castilloa3487d12015-08-18 14:23:04 +0100818################################################################################
Achin Gupta375f5382014-02-18 18:12:48 +0000819
Juan Castilloa3487d12015-08-18 14:23:04 +0100820# Variables for use with Certificate Generation Tool
821CRTTOOLPATH ?= tools/cert_create
Evan Lloyd004c9a52015-12-03 11:35:40 +0000822CRTTOOL ?= ${CRTTOOLPATH}/cert_create${BIN_EXT}
Achin Gupta375f5382014-02-18 18:12:48 +0000823
Sumit Gargb6c4b3c2019-11-11 18:46:36 +0530824# Variables for use with Firmware Encryption Tool
825ENCTOOLPATH ?= tools/encrypt_fw
826ENCTOOL ?= ${ENCTOOLPATH}/encrypt_fw${BIN_EXT}
827
Juan Castilloa3487d12015-08-18 14:23:04 +0100828# Variables for use with Firmware Image Package
dp-arm4972ec52016-05-25 16:20:20 +0100829FIPTOOLPATH ?= tools/fiptool
830FIPTOOL ?= ${FIPTOOLPATH}/fiptool${BIN_EXT}
James Morrisseyeaaeece2013-11-01 13:56:59 +0000831
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +0000832# Variables for use with sptool
833SPTOOLPATH ?= tools/sptool
834SPTOOL ?= ${SPTOOLPATH}/sptool${BIN_EXT}
Manish Pandey3f90ad72020-01-14 11:52:05 +0000835SP_MK_GEN ?= ${SPTOOLPATH}/sp_mk_generator.py
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +0000836
Roberto Vargase92111a2018-05-22 16:05:42 +0100837# Variables for use with ROMLIB
838ROMLIBPATH ?= lib/romlib
839
Louis Mayencourtcc3e8b82019-10-16 14:30:51 +0100840# 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 ?= ${PRINT_MEMORY_MAP_PATH}/print_memory_map.py
846
Madhukar Pappireddy46adb1b2020-01-28 12:41:20 -0600847# Variables for use with documentation build using Sphinx tool
848DOCS_PATH ?= docs
849
Soby Mathew574e01e2017-02-14 10:05:07 +0000850################################################################################
851# Include BL specific makefiles
852################################################################################
853ifdef BL1_SOURCES
854NEED_BL1 := yes
855include bl1/bl1.mk
856endif
857
858ifdef BL2_SOURCES
859NEED_BL2 := yes
860include bl2/bl2.mk
861endif
862
Soby Mathew574e01e2017-02-14 10:05:07 +0000863ifdef BL2U_SOURCES
864NEED_BL2U := yes
865include bl2u/bl2u.mk
866endif
867
Soby Mathewbf169232017-11-14 14:10:10 +0000868ifeq (${NEED_BL31},yes)
Soby Mathew574e01e2017-02-14 10:05:07 +0000869ifdef BL31_SOURCES
Soby Mathew574e01e2017-02-14 10:05:07 +0000870include bl31/bl31.mk
871endif
872endif
Soby Mathew574e01e2017-02-14 10:05:07 +0000873
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000874ifdef FDT_SOURCES
875NEED_FDT := yes
876endif
877
Soby Mathew574e01e2017-02-14 10:05:07 +0000878################################################################################
Juan Castilloa3487d12015-08-18 14:23:04 +0100879# Build options checks
880################################################################################
881
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -0500882$(eval $(call assert_booleans,\
883 $(sort \
884 ALLOW_RO_XLAT_TABLES \
885 COLD_BOOT_SINGLE_CPU \
886 CREATE_KEYS \
887 CTX_INCLUDE_AARCH32_REGS \
888 CTX_INCLUDE_FPREGS \
889 CTX_INCLUDE_PAUTH_REGS \
890 CTX_INCLUDE_MTE_REGS \
891 CTX_INCLUDE_EL2_REGS \
Arunachalam Ganapathydd3ec7e2020-05-28 11:57:09 +0100892 CTX_INCLUDE_NEVE_REGS \
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -0500893 DEBUG \
Javier Almansa Sobrinof3a4c542020-11-23 18:38:15 +0000894 DISABLE_MTPMU \
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -0500895 DYN_DISABLE_AUTH \
896 EL3_EXCEPTION_HANDLING \
897 ENABLE_AMU \
898 ENABLE_ASSERTIONS \
899 ENABLE_MPAM_FOR_LOWER_ELS \
900 ENABLE_PIE \
901 ENABLE_PMF \
902 ENABLE_PSCI_STAT \
903 ENABLE_RUNTIME_INSTRUMENTATION \
904 ENABLE_SPE_FOR_LOWER_ELS \
905 ENABLE_SVE_FOR_NS \
906 ERROR_DEPRECATED \
907 FAULT_INJECTION_SUPPORT \
908 GENERATE_COT \
909 GICV2_G0_FOR_EL3 \
910 HANDLE_EA_EL3_FIRST \
911 HW_ASSISTED_COHERENCY \
912 INVERTED_MEMMAP \
913 MEASURED_BOOT \
914 NS_TIMER_SWITCH \
915 OVERRIDE_LIBC \
916 PL011_GENERIC_UART \
917 PROGRAMMABLE_RESET_ADDRESS \
918 PSCI_EXTENDED_STATE_ID \
919 RAS_EXTENSION \
920 RESET_TO_BL31 \
921 SAVE_KEYS \
922 SEPARATE_CODE_AND_RODATA \
923 SEPARATE_NOBITS_REGION \
924 SPIN_ON_BL1_EXIT \
925 SPM_MM \
926 SPMD_SPM_AT_SEL2 \
927 TRUSTED_BOARD_BOOT \
928 USE_COHERENT_MEM \
929 USE_DEBUGFS \
930 ARM_IO_IN_DTB \
931 SDEI_IN_FCONF \
932 SEC_INT_DESC_IN_FCONF \
933 USE_ROMLIB \
934 USE_TBBR_DEFS \
935 WARMBOOT_ENABLE_DCACHE_EARLY \
936 BL2_AT_EL3 \
937 BL2_IN_XIP_MEM \
938 BL2_INV_DCACHE \
939 USE_SPINLOCK_CAS \
940 ENCRYPT_BL31 \
941 ENCRYPT_BL32 \
942 ERRATA_SPECULATIVE_AT \
943 RAS_TRAP_LOWER_EL_ERR_ACCESS \
944 COT_DESC_IN_DTB \
945 USE_SP804_TIMER \
Tomas Pilarde164b02020-10-29 13:01:16 +0000946 ENABLE_FEAT_RNG \
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -0500947)))
Dan Handley81be1002015-03-27 17:44:35 +0000948
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -0500949$(eval $(call assert_numerics,\
950 $(sort \
951 ARM_ARCH_MAJOR \
952 ARM_ARCH_MINOR \
953 BRANCH_PROTECTION \
954 FW_ENC_STATUS \
955)))
Jeenu Viswambharanfca76802017-01-16 16:52:35 +0000956
Justin Chadwellf9b32c12019-07-29 17:13:10 +0100957ifdef KEY_SIZE
958 $(eval $(call assert_numeric,KEY_SIZE))
959endif
960
Justin Chadwell83e04882019-08-20 11:01:52 +0100961ifeq ($(filter $(SANITIZE_UB), on off trap),)
962 $(error "Invalid value for SANITIZE_UB: can be one of on, off, trap")
963endif
964
Juan Castilloa3487d12015-08-18 14:23:04 +0100965################################################################################
966# Add definitions to the cpp preprocessor based on the current build options.
967# This is done after including the platform specific makefile to allow the
968# platform to overwrite the default options
969################################################################################
Jeenu Viswambharand1b60152014-05-12 15:28:47 +0100970
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -0500971$(eval $(call add_defines,\
972 $(sort \
973 ALLOW_RO_XLAT_TABLES \
974 ARM_ARCH_MAJOR \
975 ARM_ARCH_MINOR \
976 COLD_BOOT_SINGLE_CPU \
977 CTX_INCLUDE_AARCH32_REGS \
978 CTX_INCLUDE_FPREGS \
979 CTX_INCLUDE_PAUTH_REGS \
980 EL3_EXCEPTION_HANDLING \
981 CTX_INCLUDE_MTE_REGS \
982 CTX_INCLUDE_EL2_REGS \
Arunachalam Ganapathydd3ec7e2020-05-28 11:57:09 +0100983 CTX_INCLUDE_NEVE_REGS \
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -0500984 DECRYPTION_SUPPORT_${DECRYPTION_SUPPORT} \
Javier Almansa Sobrinof3a4c542020-11-23 18:38:15 +0000985 DISABLE_MTPMU \
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -0500986 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 \
Jimmy Brisson26c5b5c2020-06-22 14:18:42 -05001021 TRNG_SUPPORT \
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -05001022 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 \
Tomas Pilarde164b02020-10-29 13:01:16 +00001038 ENABLE_FEAT_RNG \
Leonardo Sandoval65fca7c2020-09-10 12:18:27 -05001039)))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +01001040
Justin Chadwell83e04882019-08-20 11:01:52 +01001041ifeq (${SANITIZE_UB},trap)
1042 $(eval $(call add_define,MONITOR_TRAPS))
1043endif
1044
Sandrine Bailleux03897bb2015-11-26 16:31:34 +00001045# Define the EL3_PAYLOAD_BASE flag only if it is provided.
1046ifdef EL3_PAYLOAD_BASE
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +00001047 $(eval $(call add_define,EL3_PAYLOAD_BASE))
1048else
Antonio Nino Diaz2b8277b2016-04-06 17:31:57 +01001049 # 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 $(call add_define,PRELOADED_BL33_BASE))
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +00001053 endif
Sandrine Bailleux03897bb2015-11-26 16:31:34 +00001054endif
Soby Mathew85dbf5a2015-04-07 12:16:56 +01001055
Soby Mathew9fe88042018-03-26 12:43:37 +01001056# Define the DYN_DISABLE_AUTH flag only if set.
1057ifeq (${DYN_DISABLE_AUTH},1)
1058$(eval $(call add_define,DYN_DISABLE_AUTH))
1059endif
1060
Varun Wadekar4d034c52019-01-11 14:47:48 -08001061ifneq ($(findstring armlink,$(notdir $(LD))),)
1062$(eval $(call add_define,USE_ARM_LINK))
1063endif
1064
Manish Pandey3f90ad72020-01-14 11:52:05 +00001065# Generate and include sp_gen.mk if SPD is spmd and SP_LAYOUT_FILE is defined
Manish Pandey3f90ad72020-01-14 11:52:05 +00001066ifeq (${SPD},spmd)
Olivier Deprez042db532020-03-19 09:27:11 +01001067ifdef 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
Manish Pandey3f90ad72020-01-14 11:52:05 +00001071 -include $(BUILD_PLAT)/sp_gen.mk
1072 FIP_DEPS += sp
Manish Pandeyaaaeb312020-05-26 23:59:36 +01001073 CRT_DEPS += sp
Manish Pandey3f90ad72020-01-14 11:52:05 +00001074 NEED_SP_PKG := yes
1075else
Olivier Deprez042db532020-03-19 09:27:11 +01001076 ifeq (${SPMD_SPM_AT_SEL2},1)
1077 $(error "SPMD with SPM at S-EL2 require SP_LAYOUT_FILE")
1078 endif
Manish Pandey3f90ad72020-01-14 11:52:05 +00001079endif
1080endif
1081
Juan Castilloa3487d12015-08-18 14:23:04 +01001082################################################################################
Juan Castilloa3487d12015-08-18 14:23:04 +01001083# Build targets
1084################################################################################
Achin Gupta4f6ad662013-10-25 09:08:21 +01001085
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301086.PHONY: all msg_start clean realclean distclean cscope locate-checkpatch checkcodebase checkpatch fiptool sptool fip sp fwu_fip certtool dtbs memmap doc enctool
Juan Castilloa3487d12015-08-18 14:23:04 +01001087.SUFFIXES:
Achin Gupta4f6ad662013-10-25 09:08:21 +01001088
Juan Castilloa3487d12015-08-18 14:23:04 +01001089all: msg_start
Harry Liebelf58ad362014-01-10 18:00:33 +00001090
Juan Castilloa3487d12015-08-18 14:23:04 +01001091msg_start:
1092 @echo "Building ${PLAT}"
Juan Castillo11abdcd2014-10-21 11:30:42 +01001093
Soby Mathew18a62042015-10-26 14:29:21 +00001094ifeq (${ERROR_DEPRECATED},0)
Julius Werner53456fc2019-07-09 13:49:11 -07001095# Check if deprecated declarations and cpp warnings should be treated as error or not.
Varun Wadekar4d034c52019-01-11 14:47:48 -08001096ifneq ($(findstring clang,$(notdir $(CC))),)
1097 CPPFLAGS += -Wno-error=deprecated-declarations
1098else
Dan Handley6fa89a22018-02-27 16:03:58 +00001099 CPPFLAGS += -Wno-error=deprecated-declarations -Wno-error=cpp
Soby Mathew18a62042015-10-26 14:29:21 +00001100endif
Julius Werner53456fc2019-07-09 13:49:11 -07001101endif # !ERROR_DEPRECATED
Soby Mathew18a62042015-10-26 14:29:21 +00001102
Roberto Vargase92111a2018-05-22 16:05:42 +01001103$(eval $(call MAKE_LIB_DIRS))
Roberto Vargas0f8f9852018-05-08 10:27:10 +01001104$(eval $(call MAKE_LIB,c))
Roberto Vargas21360f32018-05-08 10:27:10 +01001105
Juan Castilloa3487d12015-08-18 14:23:04 +01001106# Expand build macros for the different images
1107ifeq (${NEED_BL1},yes)
1108$(eval $(call MAKE_BL,1))
1109endif
Juan Castillo11abdcd2014-10-21 11:30:42 +01001110
Juan Castilloa3487d12015-08-18 14:23:04 +01001111ifeq (${NEED_BL2},yes)
Roberto Vargas53c052b2018-01-02 11:23:41 +00001112ifeq (${BL2_AT_EL3}, 0)
1113FIP_BL2_ARGS := tb-fw
1114endif
1115
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001116$(if ${BL2}, $(eval $(call TOOL_ADD_IMG,bl2,--${FIP_BL2_ARGS})),\
Roberto Vargas53c052b2018-01-02 11:23:41 +00001117 $(eval $(call MAKE_BL,2,${FIP_BL2_ARGS})))
Juan Castilloa3487d12015-08-18 14:23:04 +01001118endif
Juan Castillo11abdcd2014-10-21 11:30:42 +01001119
Masahiro Yamadae76b4f82017-04-05 19:11:41 +09001120ifeq (${NEED_SCP_BL2},yes)
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001121$(eval $(call TOOL_ADD_IMG,scp_bl2,--scp-fw))
Masahiro Yamadae76b4f82017-04-05 19:11:41 +09001122endif
1123
Juan Castilloa3487d12015-08-18 14:23:04 +01001124ifeq (${NEED_BL31},yes)
1125BL31_SOURCES += ${SPD_SOURCES}
Madhukar Pappireddyae9677b2020-01-27 13:37:51 -06001126# Sort BL31 source files to remove duplicates
1127BL31_SOURCES := $(sort ${BL31_SOURCES})
Sumit Gargeec52442019-11-14 16:33:45 +05301128ifneq (${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
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001132$(if ${BL31}, $(eval $(call TOOL_ADD_IMG,bl31,--soc-fw)),\
Juan Castillo8e04dec2016-01-05 11:55:36 +00001133 $(eval $(call MAKE_BL,31,soc-fw)))
Juan Castilloa3487d12015-08-18 14:23:04 +01001134endif
Sumit Gargeec52442019-11-14 16:33:45 +05301135endif
Juan Castillo379954c2014-11-04 17:36:40 +00001136
Juan Castillo671b8db2015-11-12 10:59:26 +00001137# If a BL32 image is needed but neither BL32 nor BL32_SOURCES is defined, the
Masahiro Yamada4d156802018-01-26 11:42:01 +09001138# build system will call TOOL_ADD_IMG to print a warning message and abort the
Juan Castillo671b8db2015-11-12 10:59:26 +00001139# process. Note that the dependency on BL32 applies to the FIP only.
Juan Castilloa3487d12015-08-18 14:23:04 +01001140ifeq (${NEED_BL32},yes)
Madhukar Pappireddyae9677b2020-01-27 13:37:51 -06001141# Sort BL32 source files to remove duplicates
1142BL32_SOURCES := $(sort ${BL32_SOURCES})
Masahiro Yamada6ced1b22018-01-26 11:42:01 +09001143BUILD_BL32 := $(if $(BL32),,$(if $(BL32_SOURCES),1))
1144
Sumit Gargeec52442019-11-14 16:33:45 +05301145ifneq (${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
Masahiro Yamada6ced1b22018-01-26 11:42:01 +09001149$(if ${BUILD_BL32}, $(eval $(call MAKE_BL,32,tos-fw)),\
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001150 $(eval $(call TOOL_ADD_IMG,bl32,--tos-fw)))
Juan Castillo11abdcd2014-10-21 11:30:42 +01001151endif
Sumit Gargeec52442019-11-14 16:33:45 +05301152endif
Juan Castillo11abdcd2014-10-21 11:30:42 +01001153
Juan Castilloa3487d12015-08-18 14:23:04 +01001154# Add the BL33 image if required by the platform
1155ifeq (${NEED_BL33},yes)
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001156$(eval $(call TOOL_ADD_IMG,bl33,--nt-fw))
Juan Castillo9c25a402015-01-13 12:21:04 +00001157endif
1158
Yatharth Kocharb1c2fe02015-10-14 15:27:24 +01001159ifeq (${NEED_BL2U},yes)
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001160$(if ${BL2U}, $(eval $(call TOOL_ADD_IMG,bl2u,--ap-fwu-cfg,FWU_)),\
Masahiro Yamadacd7711d2018-01-26 11:42:01 +09001161 $(eval $(call MAKE_BL,2u,ap-fwu-cfg,FWU_)))
Yatharth Kocharb1c2fe02015-10-14 15:27:24 +01001162endif
1163
Nishanth Menon4ac02ba2016-10-14 01:13:57 +00001164# Expand build macros for the different images
1165ifeq (${NEED_FDT},yes)
Soby Mathewab4181d2017-12-14 17:44:56 +00001166 $(eval $(call MAKE_DTBS,$(BUILD_PLAT)/fdts,$(FDT_SOURCES)))
Nishanth Menon4ac02ba2016-10-14 01:13:57 +00001167endif
1168
Manish Pandey3f90ad72020-01-14 11:52:05 +00001169# Add Secure Partition packages
1170ifeq (${NEED_SP_PKG},yes)
1171$(BUILD_PLAT)/sp_gen.mk: ${SP_MK_GEN} ${SP_LAYOUT_FILE} | ${BUILD_PLAT}
Ruari Phipps571ed6b2020-07-24 16:20:57 +01001172 ${Q}${PYTHON} "$<" "$@" $(filter-out $<,$^) $(BUILD_PLAT) ${COT}
Manish Pandey3f90ad72020-01-14 11:52:05 +00001173sp: $(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
Ian Spray36eaaf32014-01-30 17:25:28 +00001180locate-checkpatch:
1181ifndef CHECKPATCH
Etienne Carrieref5657572017-08-23 15:44:01 +02001182 $(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/scripts/checkpatch.pl")
Ian Spray36eaaf32014-01-30 17:25:28 +00001183else
1184ifeq (,$(wildcard ${CHECKPATCH}))
Etienne Carrieref5657572017-08-23 15:44:01 +02001185 $(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/scripts/checkpatch.pl")
Ian Spray36eaaf32014-01-30 17:25:28 +00001186endif
1187endif
1188
Achin Gupta4f6ad662013-10-25 09:08:21 +01001189clean:
Juan Castilloa3487d12015-08-18 14:23:04 +01001190 @echo " CLEAN"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001191 $(call SHELL_REMOVE_DIR,${BUILD_PLAT})
Sami Mujaware7cdc3f2020-04-30 12:41:57 +01001192ifdef UNIX_MK
Juan Castilloa3487d12015-08-18 14:23:04 +01001193 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
Sami Mujaware7cdc3f2020-04-30 12:41:57 +01001194else
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
Juan Castilloa3487d12015-08-18 14:23:04 +01001199 ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301200 ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${ENCTOOLPATH} clean
Roberto Vargase92111a2018-05-22 16:05:42 +01001201 ${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean
Achin Gupta4f6ad662013-10-25 09:08:21 +01001202
James Morrisseyeaaeece2013-11-01 13:56:59 +00001203realclean distclean:
Juan Castilloa3487d12015-08-18 14:23:04 +01001204 @echo " REALCLEAN"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001205 $(call SHELL_REMOVE_DIR,${BUILD_BASE})
1206 $(call SHELL_DELETE_ALL, ${CURDIR}/cscope.*)
Sami Mujaware7cdc3f2020-04-30 12:41:57 +01001207ifdef UNIX_MK
Juan Castilloa3487d12015-08-18 14:23:04 +01001208 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
Sami Mujaware7cdc3f2020-04-30 12:41:57 +01001209else
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
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +00001214 ${Q}${MAKE} --no-print-directory -C ${SPTOOLPATH} clean
Juan Castilloa3487d12015-08-18 14:23:04 +01001215 ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301216 ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${ENCTOOLPATH} realclean
Roberto Vargase92111a2018-05-22 16:05:42 +01001217 ${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean
Achin Gupta4f6ad662013-10-25 09:08:21 +01001218
Ian Spray36eaaf32014-01-30 17:25:28 +00001219checkcodebase: locate-checkpatch
Juan Castilloa3487d12015-08-18 14:23:04 +01001220 @echo " CHECKING STYLE"
Dan Handley3a355712016-06-02 18:21:02 +01001221 @if test -d .git ; then \
Paul Beesleyadfab5b2019-03-07 16:42:31 +00001222 git ls-files | grep -E -v 'libfdt|libc|docs|\.rst' | \
Dan Handley3a355712016-06-02 18:21:02 +01001223 while read GIT_FILE ; \
1224 do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ; \
1225 done ; \
1226 else \
1227 find . -type f -not -iwholename "*.git*" \
1228 -not -iwholename "*build*" \
1229 -not -iwholename "*libfdt*" \
Roberto Vargas0f8f9852018-05-08 10:27:10 +01001230 -not -iwholename "*libc*" \
Dan Handley3a355712016-06-02 18:21:02 +01001231 -not -iwholename "*docs*" \
Paul Beesleyadfab5b2019-03-07 16:42:31 +00001232 -not -iwholename "*.rst" \
Dan Handley3a355712016-06-02 18:21:02 +01001233 -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ; \
1234 fi
Ian Spray36eaaf32014-01-30 17:25:28 +00001235
1236checkpatch: locate-checkpatch
Juan Castilloa3487d12015-08-18 14:23:04 +01001237 @echo " CHECKING STYLE"
Yann Gautier0c26a2a2019-03-08 15:44:00 +01001238 @if test -n "${CHECKPATCH_OPTS}"; then \
1239 echo " with ${CHECKPATCH_OPTS} option(s)"; \
1240 fi
Antonio Nino Diaz2cd4b582018-01-29 12:00:31 +00001241 ${Q}COMMON_COMMIT=$$(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" \
Yann Gautier0c26a2a2019-03-08 15:44:00 +01001245 -- ${CHECK_PATHS} | \
1246 ${CHECKPATCH} ${CHECKPATCH_OPTS} - || true; \
Antonio Nino Diaz2cd4b582018-01-29 12:00:31 +00001247 git diff --format=email "$$commit~..$$commit" \
Yann Gautier0c26a2a2019-03-08 15:44:00 +01001248 -- ${CHECK_PATHS} | \
1249 ${CHECKPATCH} ${CHECKPATCH_OPTS} - || true; \
Antonio Nino Diaz2cd4b582018-01-29 12:00:31 +00001250 done
Juan Castilloa3487d12015-08-18 14:23:04 +01001251
1252certtool: ${CRTTOOL}
Ian Spray36eaaf32014-01-30 17:25:28 +00001253
Pali Rohár54ff2132020-11-24 15:38:08 +01001254${CRTTOOL}: FORCE
Manish V Badarkhe635482e2020-08-13 05:56:33 +01001255 ${Q}${MAKE} PLAT=${PLAT} USE_TBBR_DEFS=${USE_TBBR_DEFS} COT=${COT} OPENSSL_DIR=${OPENSSL_DIR} CRTTOOL=${CRTTOOL} --no-print-directory -C ${CRTTOOLPATH}
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001256 @${ECHO_BLANK_LINE}
Juan Castilloa3487d12015-08-18 14:23:04 +01001257 @echo "Built $@ successfully"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001258 @${ECHO_BLANK_LINE}
Jon Medhurst407a95c2014-02-12 15:54:48 +00001259
Juan Castillo11abdcd2014-10-21 11:30:42 +01001260ifneq (${GENERATE_COT},0)
Juan Castilloa3487d12015-08-18 14:23:04 +01001261certificates: ${CRT_DEPS} ${CRTTOOL}
1262 ${Q}${CRTTOOL} ${CRT_ARGS}
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001263 @${ECHO_BLANK_LINE}
Juan Castilloa3487d12015-08-18 14:23:04 +01001264 @echo "Built $@ successfully"
1265 @echo "Certificates can be found in ${BUILD_PLAT}"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001266 @${ECHO_BLANK_LINE}
Juan Castillo11abdcd2014-10-21 11:30:42 +01001267endif
1268
Juan Castilloa3487d12015-08-18 14:23:04 +01001269${BUILD_PLAT}/${FIP_NAME}: ${FIP_DEPS} ${FIPTOOL}
Pali Rohára5416ab2020-11-24 16:53:04 +01001270 $(eval ${CHECK_FIP_CMD})
dp-arm4972ec52016-05-25 16:20:20 +01001271 ${Q}${FIPTOOL} create ${FIP_ARGS} $@
1272 ${Q}${FIPTOOL} info $@
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001273 @${ECHO_BLANK_LINE}
Juan Castilloa3487d12015-08-18 14:23:04 +01001274 @echo "Built $@ successfully"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001275 @${ECHO_BLANK_LINE}
Soby Mathewdbee7fc2014-09-08 17:51:01 +01001276
Yatharth Kochard1a93432015-10-12 12:33:47 +01001277ifneq (${GENERATE_COT},0)
1278fwu_certificates: ${FWU_CRT_DEPS} ${CRTTOOL}
1279 ${Q}${CRTTOOL} ${FWU_CRT_ARGS}
Evan Lloyd1c5f3602017-04-11 16:52:00 +01001280 @${ECHO_BLANK_LINE}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001281 @echo "Built $@ successfully"
1282 @echo "FWU certificates can be found in ${BUILD_PLAT}"
Evan Lloyd1c5f3602017-04-11 16:52:00 +01001283 @${ECHO_BLANK_LINE}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001284endif
1285
1286${BUILD_PLAT}/${FWU_FIP_NAME}: ${FWU_FIP_DEPS} ${FIPTOOL}
Pali Rohára5416ab2020-11-24 16:53:04 +01001287 $(eval ${CHECK_FWU_FIP_CMD})
dp-arm4972ec52016-05-25 16:20:20 +01001288 ${Q}${FIPTOOL} create ${FWU_FIP_ARGS} $@
1289 ${Q}${FIPTOOL} info $@
Evan Lloyd1c5f3602017-04-11 16:52:00 +01001290 @${ECHO_BLANK_LINE}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001291 @echo "Built $@ successfully"
Evan Lloyd1c5f3602017-04-11 16:52:00 +01001292 @${ECHO_BLANK_LINE}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001293
Juan Castilloa3487d12015-08-18 14:23:04 +01001294fiptool: ${FIPTOOL}
1295fip: ${BUILD_PLAT}/${FIP_NAME}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001296fwu_fip: ${BUILD_PLAT}/${FWU_FIP_NAME}
Harry Liebelf58ad362014-01-10 18:00:33 +00001297
Pali Rohár54ff2132020-11-24 15:38:08 +01001298${FIPTOOL}: FORCE
Sami Mujaware7cdc3f2020-04-30 12:41:57 +01001299 @${ECHO_BLANK_LINE}
1300 @echo "Building $@"
1301ifdef UNIX_MK
Manish V Badarkhe635482e2020-08-13 05:56:33 +01001302 ${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" FIPTOOL=${FIPTOOL} --no-print-directory -C ${FIPTOOLPATH}
Sami Mujaware7cdc3f2020-04-30 12:41:57 +01001303else
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}
Harry Liebelf58ad362014-01-10 18:00:33 +00001309
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +00001310sptool: ${SPTOOL}
Pali Rohár54ff2132020-11-24 15:38:08 +01001311${SPTOOL}: FORCE
Manish V Badarkhe635482e2020-08-13 05:56:33 +01001312 ${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" SPTOOL=${SPTOOL} --no-print-directory -C ${SPTOOLPATH}
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +00001313
Pali Rohár54ff2132020-11-24 15:38:08 +01001314romlib.bin: libraries FORCE
John Tsichritzisf6ea99b2019-05-21 15:47:37 +01001315 ${Q}${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
Roberto Vargase92111a2018-05-22 16:05:42 +01001316
Louis Mayencourtcc3e8b82019-10-16 14:30:51 +01001317# Call print_memory_map tool
1318memmap: all
Louis Mayencourtc1c2bf72020-02-13 08:21:34 +00001319 ${Q}${PYTHON} ${PRINT_MEMORY_MAP} ${BUILD_PLAT} ${INVERTED_MEMMAP}
Louis Mayencourtcc3e8b82019-10-16 14:30:51 +01001320
Madhukar Pappireddy46adb1b2020-01-28 12:41:20 -06001321doc:
1322 @echo " BUILD DOCUMENTATION"
1323 ${Q}${MAKE} --no-print-directory -C ${DOCS_PATH} html
1324
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301325enctool: ${ENCTOOL}
1326
Pali Rohár54ff2132020-11-24 15:38:08 +01001327${ENCTOOL}: FORCE
Manish V Badarkhe635482e2020-08-13 05:56:33 +01001328 ${Q}${MAKE} PLAT=${PLAT} BUILD_INFO=0 OPENSSL_DIR=${OPENSSL_DIR} ENCTOOL=${ENCTOOL} --no-print-directory -C ${ENCTOOLPATH}
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301329 @${ECHO_BLANK_LINE}
1330 @echo "Built $@ successfully"
1331 @${ECHO_BLANK_LINE}
1332
Joakim Bech35fab8c2014-01-23 14:51:49 +01001333cscope:
1334 @echo " CSCOPE"
1335 ${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files
1336 ${Q}cscope -b -q -k
1337
Ryan Harkin72ee3312014-01-15 16:55:07 +00001338help:
John Tsichritzis0c4dded2019-05-21 15:57:31 +01001339 @echo "usage: ${MAKE} [PLAT=<platform>] [OPTIONS] [TARGET]"
Ryan Harkin72ee3312014-01-15 16:55:07 +00001340 @echo ""
1341 @echo "PLAT is used to specify which platform you wish to build."
Sandrine Bailleuxa08588a2014-03-21 13:16:35 +00001342 @echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}"
Ryan Harkin72ee3312014-01-15 16:55:07 +00001343 @echo ""
John Tsichritzis0c4dded2019-05-21 15:57:31 +01001344 @echo "platform = ${PLATFORM_LIST}"
1345 @echo ""
Sandrine Bailleuxcf8afbd2015-02-18 16:18:00 +00001346 @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 ""
Ryan Harkin72ee3312014-01-15 16:55:07 +00001351 @echo "Supported Targets:"
Sandrine Bailleuxcf8afbd2015-02-18 16:18:00 +00001352 @echo " all Build all individual bootloader binaries"
Ian Spray36eaaf32014-01-30 17:25:28 +00001353 @echo " bl1 Build the BL1 binary"
Jeenu Viswambharan8aa559c2014-02-21 11:42:08 +00001354 @echo " bl2 Build the BL2 binary"
Yatharth Kocharb1c2fe02015-10-14 15:27:24 +01001355 @echo " bl2u Build the BL2U binary"
Juan Castillo7d199412015-12-14 09:35:25 +00001356 @echo " bl31 Build the BL31 binary"
Soby Mathewa1941252016-05-05 14:33:33 +01001357 @echo " bl32 Build the BL32 binary. If ARCH=aarch32, then "
1358 @echo " this builds secure payload specified by AARCH32_SP"
Juan Castilloa3487d12015-08-18 14:23:04 +01001359 @echo " certificates Build the certificates (requires 'GENERATE_COT=1')"
Sandrine Bailleuxcf8afbd2015-02-18 16:18:00 +00001360 @echo " fip Build the Firmware Image Package (FIP)"
Yatharth Kochard1a93432015-10-12 12:33:47 +01001361 @echo " fwu_fip Build the FWU Firmware Image Package (FIP)"
Ian Spray36eaaf32014-01-30 17:25:28 +00001362 @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"
Harry Liebelf58ad362014-01-10 18:00:33 +00001366 @echo " cscope Generate cscope index"
Ian Spray36eaaf32014-01-30 17:25:28 +00001367 @echo " distclean Remove all build artifacts for all platforms"
Juan Castillo11abdcd2014-10-21 11:30:42 +01001368 @echo " certtool Build the Certificate generation tool"
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301369 @echo " enctool Build the Firmware encryption tool"
Andreas Färberec82cfb2016-10-10 05:18:49 +02001370 @echo " fiptool Build the Firmware Image Package (FIP) creation tool"
Manish Pandey3f90ad72020-01-14 11:52:05 +00001371 @echo " sp Build the Secure Partition Packages"
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +00001372 @echo " sptool Build the Secure Partition Package creation tool"
Soby Mathewab4181d2017-12-14 17:44:56 +00001373 @echo " dtbs Build the Device Tree Blobs (if required for the platform)"
Louis Mayencourtcc3e8b82019-10-16 14:30:51 +01001374 @echo " memmap Print the memory map of the built binaries"
Madhukar Pappireddy46adb1b2020-01-28 12:41:20 -06001375 @echo " doc Build html based documentation using Sphinx tool"
Ryan Harkin72ee3312014-01-15 16:55:07 +00001376 @echo ""
Sandrine Bailleuxcf8afbd2015-02-18 16:18:00 +00001377 @echo "Note: most build targets require PLAT to be set to a specific platform."
Ryan Harkin72ee3312014-01-15 16:55:07 +00001378 @echo ""
1379 @echo "example: build all targets for the FVP platform:"
1380 @echo " CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all"
Pali Rohár54ff2132020-11-24 15:38:08 +01001381
1382.PHONY: FORCE
1383FORCE:;