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Achin Gupta4f6ad662013-10-25 09:08:21 +01001#
Balint Dobszay5ce2c322020-01-10 17:16:27 +01002# Copyright (c) 2013-2020, 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
Deepika Bhavnani9d374b02019-10-15 10:47:09 -050011VERSION_MINOR := 2
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
42INC_LIB_DIRS_TO_CHECK := $(sort $(filter-out \
Dan Handley3a355712016-06-02 18:21:02 +010043 include/lib/libfdt \
Roberto Vargas0f8f9852018-05-08 10:27:10 +010044 include/lib/libc, \
Dan Handleyd7b59e42016-06-02 17:15:13 +010045 $(wildcard include/lib/*)))
46INC_DIRS_TO_CHECK := $(sort $(filter-out \
47 include/lib, \
48 $(wildcard include/*)))
49LIB_DIRS_TO_CHECK := $(sort $(filter-out \
dp-arme3cc8382017-05-04 12:15:35 +010050 lib/compiler-rt \
Antonio Nino Diazd84f88e2017-01-16 17:20:45 +000051 lib/libfdt% \
Roberto Vargas0f8f9852018-05-08 10:27:10 +010052 lib/libc, \
Dan Handleyd7b59e42016-06-02 17:15:13 +010053 $(wildcard lib/*)))
54ROOT_DIRS_TO_CHECK := $(sort $(filter-out \
55 lib \
56 include \
57 docs \
Paul Beesleyadfab5b2019-03-07 16:42:31 +000058 %.rst, \
Dan Handleyd7b59e42016-06-02 17:15:13 +010059 $(wildcard *)))
60CHECK_PATHS := ${ROOT_DIRS_TO_CHECK} \
61 ${INC_DIRS_TO_CHECK} \
62 ${INC_LIB_DIRS_TO_CHECK} \
63 ${LIB_DIRS_TO_CHECK}
Ian Spray36eaaf32014-01-30 17:25:28 +000064
Juan Castilloa3487d12015-08-18 14:23:04 +010065
66################################################################################
67# Process build options
68################################################################################
69
70# Verbose flag
Jeenu Viswambharan19a0ace2014-05-15 14:40:58 +010071ifeq (${V},0)
Evan Lloydf4ba5ca2015-12-03 09:47:51 +000072 Q:=@
Andre Przywaracf2bb082018-09-27 10:56:05 +010073 ECHO:=@echo
Juan Castilloa3487d12015-08-18 14:23:04 +010074 CHECKCODE_ARGS += --no-summary --terse
Achin Gupta4f6ad662013-10-25 09:08:21 +010075else
Evan Lloydf4ba5ca2015-12-03 09:47:51 +000076 Q:=
Antonio Nino Diazffd122b2018-10-19 15:44:30 +010077 ECHO:=$(ECHO_QUIET)
Andre Przywaracf2bb082018-09-27 10:56:05 +010078endif
79
80ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),)
81 Q:=@
Antonio Nino Diazffd122b2018-10-19 15:44:30 +010082 ECHO:=$(ECHO_QUIET)
Achin Gupta4f6ad662013-10-25 09:08:21 +010083endif
Andre Przywaracf2bb082018-09-27 10:56:05 +010084
85export Q ECHO
Jeenu Viswambharan2f2cef42014-02-19 09:38:18 +000086
Juan Castillo04be3a52014-06-30 11:41:46 +010087# Default build string (git branch and commit)
88ifeq (${BUILD_STRING},)
Masahiro Yamadaf10adde2017-02-03 11:47:27 +090089 BUILD_STRING := $(shell git describe --always --dirty --tags 2> /dev/null)
Juan Castillo04be3a52014-06-30 11:41:46 +010090endif
Juan Castillo04be3a52014-06-30 11:41:46 +010091VERSION_STRING := v${VERSION_MAJOR}.${VERSION_MINOR}(${BUILD_TYPE}):${BUILD_STRING}
92
Juan Castilloa3487d12015-08-18 14:23:04 +010093# The cert_create tool cannot generate certificates individually, so we use the
94# target 'certificates' to create them all
95ifneq (${GENERATE_COT},0)
96 FIP_DEPS += certificates
Yatharth Kochard1a93432015-10-12 12:33:47 +010097 FWU_FIP_DEPS += fwu_certificates
Juan Castilloa3487d12015-08-18 14:23:04 +010098endif
99
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100100# Process BRANCH_PROTECTION value and set
101# Pointer Authentication and Branch Target Identification flags
102ifeq (${BRANCH_PROTECTION},0)
103 # Default value turns off all types of branch protection
104 BP_OPTION := none
105else ifneq (${ARCH},aarch64)
106 $(error BRANCH_PROTECTION requires AArch64)
107else ifeq (${BRANCH_PROTECTION},1)
108 # Enables all types of branch protection features
109 BP_OPTION := standard
110 ENABLE_BTI := 1
111 ENABLE_PAUTH := 1
112else ifeq (${BRANCH_PROTECTION},2)
113 # Return address signing to its standard level
114 BP_OPTION := pac-ret
115 ENABLE_PAUTH := 1
116else ifeq (${BRANCH_PROTECTION},3)
117 # Extend the signing to include leaf functions
118 BP_OPTION := pac-ret+leaf
119 ENABLE_PAUTH := 1
120else
121 $(error Unknown BRANCH_PROTECTION value ${BRANCH_PROTECTION})
122endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100123
Soby Mathewad042012019-09-25 14:03:41 +0100124# USE_SPINLOCK_CAS requires AArch64 build
125ifeq (${USE_SPINLOCK_CAS},1)
126ifneq (${ARCH},aarch64)
127 $(error USE_SPINLOCK_CAS requires AArch64)
128else
129 $(info USE_SPINLOCK_CAS is an experimental feature)
130endif
131endif
132
Olivier Deprezcb4c5622019-09-19 17:46:46 +0200133# USE_DEBUGFS experimental feature recommended only in debug builds
134ifeq (${USE_DEBUGFS},1)
135ifeq (${DEBUG},1)
136 $(warning DEBUGFS experimental feature is enabled.)
137else
138 $(warning DEBUGFS experimental, recommended in DEBUG builds ONLY)
139endif
140endif
141
Sumit Gargeec52442019-11-14 16:33:45 +0530142ifneq (${DECRYPTION_SUPPORT},none)
143ENC_ARGS += -f ${FW_ENC_STATUS}
144ENC_ARGS += -k ${ENC_KEY}
145ENC_ARGS += -n ${ENC_NONCE}
146FIP_DEPS += enctool
147FWU_FIP_DEPS += enctool
148endif
149
Juan Castilloa3487d12015-08-18 14:23:04 +0100150################################################################################
151# Toolchain
152################################################################################
153
dp-arme95aaa62017-05-02 11:09:11 +0100154HOSTCC := gcc
155export HOSTCC
156
Juan Castilloa3487d12015-08-18 14:23:04 +0100157CC := ${CROSS_COMPILE}gcc
158CPP := ${CROSS_COMPILE}cpp
159AS := ${CROSS_COMPILE}gcc
160AR := ${CROSS_COMPILE}ar
Roberto Vargas1fd0d1b2018-04-13 14:26:47 +0100161LINKER := ${CROSS_COMPILE}ld
Juan Castilloa3487d12015-08-18 14:23:04 +0100162OC := ${CROSS_COMPILE}objcopy
163OD := ${CROSS_COMPILE}objdump
164NM := ${CROSS_COMPILE}nm
165PP := ${CROSS_COMPILE}gcc -E
Soby Mathewab4181d2017-12-14 17:44:56 +0000166DTC := dtc
Juan Castilloa3487d12015-08-18 14:23:04 +0100167
Julius Wernerb1f64a72018-01-10 15:12:47 -0800168# Use ${LD}.bfd instead if it exists (as absolute path or together with $PATH).
169ifneq ($(strip $(wildcard ${LD}.bfd) \
Roberto Vargas1fd0d1b2018-04-13 14:26:47 +0100170 $(foreach dir,$(subst :, ,${PATH}),$(wildcard ${dir}/${LINKER}.bfd))),)
171LINKER := ${LINKER}.bfd
Julius Wernerb1f64a72018-01-10 15:12:47 -0800172endif
173
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100174ifeq (${ARM_ARCH_MAJOR},7)
175target32-directive = -target arm-none-eabi
176# Will set march32-directive from platform configuration
177else
178target32-directive = -target armv8a-none-eabi
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000179
180# Set the compiler's target architecture profile based on ARM_ARCH_MINOR option
181ifeq (${ARM_ARCH_MINOR},0)
Sandrine Bailleux896da5b2017-11-24 08:43:40 +0000182march32-directive = -march=armv8-a
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000183march64-directive = -march=armv8-a
184else
185march32-directive = -march=armv8.${ARM_ARCH_MINOR}-a
186march64-directive = -march=armv8.${ARM_ARCH_MINOR}-a
187endif
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100188endif
189
Manish V Badarkhe75c972a2020-03-22 05:06:38 +0000190# Memory tagging is supported in architecture Armv8.5-A AArch64 and onwards
191ifeq ($(ARCH), aarch64)
192ifeq ($(shell test $(ARM_ARCH_MAJOR) -gt 8; echo $$?),0)
193mem_tag_arch_support = yes
194else ifeq ($(shell test $(ARM_ARCH_MAJOR) -eq 8 -a $(ARM_ARCH_MINOR) -ge 5; \
195 echo $$?),0)
196mem_tag_arch_support = yes
197endif
198endif
199
200# Enabled required option for memory stack tagging. Currently, these options are
201# enabled only for clang and armclang compiler.
202ifeq (${SUPPORT_STACK_MEMTAG},yes)
203ifdef mem_tag_arch_support
204ifneq ( ,$(filter $(notdir $(CC)),armclang clang))
205march64-directive = -march=armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a+memtag
206ifeq ($(notdir $(CC)),armclang)
207TF_CFLAGS += -mmemtag-stack
208else ifeq ($(notdir $(CC)),clang)
209TF_CFLAGS += -fsanitize=memtag
210endif
211endif
212else
213$(error "Error: stack memory tagging is not supported for architecture \
214 ${ARCH},armv${ARM_ARCH_MAJOR}.${ARM_ARCH_MINOR}-a")
215endif
216endif
217
Varun Wadekardbbca2f2018-12-12 15:22:27 -0800218ifneq ($(findstring armclang,$(notdir $(CC))),)
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100219TF_CFLAGS_aarch32 = -target arm-arm-none-eabi $(march32-directive)
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000220TF_CFLAGS_aarch64 = -target aarch64-arm-none-eabi $(march64-directive)
Roberto Vargas1fd0d1b2018-04-13 14:26:47 +0100221LD = $(LINKER)
Roberto Vargas69a01e72018-04-16 11:29:45 +0100222AS = $(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH))
Roberto Vargas48df32d2018-05-10 13:38:19 +0100223CPP = $(CC) -E $(TF_CFLAGS_$(ARCH))
224PP = $(CC) -E $(TF_CFLAGS_$(ARCH))
dp-armb3bfd342017-05-03 16:30:32 +0100225else ifneq ($(findstring clang,$(notdir $(CC))),)
Arve Hjønnevåg8ed49ab2020-02-04 15:50:24 -0800226CLANG_CCDIR = $(if $(filter-out ./,$(dir $(CC))),$(dir $(CC)),)
Yann Gautier60af71c2018-12-18 10:46:34 +0100227TF_CFLAGS_aarch32 = $(target32-directive) $(march32-directive)
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000228TF_CFLAGS_aarch64 = -target aarch64-elf $(march64-directive)
Arve Hjønnevåg8ed49ab2020-02-04 15:50:24 -0800229LD = $(CLANG_CCDIR)ld.lld
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100230ifeq (, $(shell which $(LD)))
231$(error "No $(LD) in PATH, make sure it is installed or set LD to a different linker")
232endif
Roberto Vargas69a01e72018-04-16 11:29:45 +0100233AS = $(CC) -c -x assembler-with-cpp $(TF_CFLAGS_$(ARCH))
Roberto Vargas48df32d2018-05-10 13:38:19 +0100234CPP = $(CC) -E
235PP = $(CC) -E
zelalem-aweked5f45272019-11-12 16:20:17 -0600236else ifneq ($(findstring gcc,$(notdir $(CC))),)
237TF_CFLAGS_aarch32 = $(march32-directive)
238TF_CFLAGS_aarch64 = $(march64-directive)
239ifeq ($(ENABLE_LTO),1)
240 # Enable LTO only for aarch64
241 ifeq (${ARCH},aarch64)
242 LTO_CFLAGS = -flto
243 # Use gcc as a wrapper for the ld, recommended for LTO
244 LINKER := ${CROSS_COMPILE}gcc
245 endif
246endif
247LD = $(LINKER)
dp-arm320e8442017-05-02 12:00:08 +0100248else
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100249TF_CFLAGS_aarch32 = $(march32-directive)
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000250TF_CFLAGS_aarch64 = $(march64-directive)
Roberto Vargas1fd0d1b2018-04-13 14:26:47 +0100251LD = $(LINKER)
dp-arm320e8442017-05-02 12:00:08 +0100252endif
253
Ahmad Fatoum2633cbb2020-02-25 11:25:08 +0100254# Process Debug flag
255$(eval $(call add_define,DEBUG))
256ifneq (${DEBUG}, 0)
257 BUILD_TYPE := debug
258 TF_CFLAGS += -g
259
260 ifneq ($(findstring clang,$(notdir $(CC))),)
261 ASFLAGS += -g
262 else
263 ASFLAGS += -g -Wa,--gdwarf-2
264 endif
265
266 # Use LOG_LEVEL_INFO by default for debug builds
267 LOG_LEVEL := 40
268else
269 BUILD_TYPE := release
270 # Use LOG_LEVEL_NOTICE by default for release builds
271 LOG_LEVEL := 20
272endif
273
Antonio Nino Diaz80914a82018-08-08 16:28:43 +0100274ifeq (${AARCH32_INSTRUCTION_SET},A32)
275TF_CFLAGS_aarch32 += -marm
276else ifeq (${AARCH32_INSTRUCTION_SET},T32)
277TF_CFLAGS_aarch32 += -mthumb
278else
279$(error Error: Unknown AArch32 instruction set ${AARCH32_INSTRUCTION_SET})
280endif
281
Sandrine Bailleux1aa72ec2018-07-03 09:14:45 +0200282TF_CFLAGS_aarch32 += -mno-unaligned-access
dp-arm320e8442017-05-02 12:00:08 +0100283TF_CFLAGS_aarch64 += -mgeneral-regs-only -mstrict-align
Soby Mathewa1941252016-05-05 14:33:33 +0100284
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100285ifneq (${BP_OPTION},none)
286TF_CFLAGS_aarch64 += -mbranch-protection=${BP_OPTION}
287endif
288
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100289ASFLAGS_aarch32 = $(march32-directive)
Alexei Fedorovb567e5d2019-03-11 16:51:47 +0000290ASFLAGS_aarch64 = $(march64-directive)
Antonio Nino Diaz25cda672019-02-19 11:53:51 +0000291
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100292# General warnings
293WARNINGS := -Wall -Wmissing-include-dirs -Wunused \
Justin Chadwell7d0e3ba2019-09-17 15:21:50 +0100294 -Wdisabled-optimization -Wvla -Wshadow \
Madhukar Pappireddyfc9b4112019-12-23 14:49:52 -0600295 -Wno-unused-parameter -Wredundant-decls
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100296
297# Additional warnings
298# Level 1
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100299WARNING1 := -Wextra
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100300WARNING1 += -Wmissing-format-attribute
301WARNING1 += -Wmissing-prototypes
302WARNING1 += -Wold-style-definition
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100303
Justin Chadwell7d0e3ba2019-09-17 15:21:50 +0100304# Level 2
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100305WARNING2 := -Waggregate-return
306WARNING2 += -Wcast-align
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100307WARNING2 += -Wnested-externs
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100308
309WARNING3 := -Wbad-function-cast
310WARNING3 += -Wcast-qual
311WARNING3 += -Wconversion
312WARNING3 += -Wpacked
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100313WARNING3 += -Wpointer-arith
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100314WARNING3 += -Wswitch-default
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100315
316ifeq (${W},1)
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100317WARNINGS += $(WARNING1)
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100318else ifeq (${W},2)
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100319WARNINGS += $(WARNING1) $(WARNING2)
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100320else ifeq (${W},3)
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100321WARNINGS += $(WARNING1) $(WARNING2) $(WARNING3)
Yann Gautier82b2f8c2018-12-10 18:00:26 +0100322endif
323
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100324# Compiler specific warnings
Ambroise Vincent067e4d92019-05-24 12:47:43 +0100325ifeq ($(findstring clang,$(notdir $(CC))),)
Justin Chadwell7a914232019-07-03 14:15:56 +0100326# not using clang
Justin Chadwell42d18ca2019-09-18 14:13:42 +0100327WARNINGS += -Wunused-but-set-variable -Wmaybe-uninitialized \
328 -Wpacked-bitfield-compat -Wshift-overflow=2 \
329 -Wlogical-op
Justin Chadwell7a914232019-07-03 14:15:56 +0100330else
331# using clang
Justin Chadwell42d18ca2019-09-18 14:13:42 +0100332WARNINGS += -Wshift-overflow -Wshift-sign-overflow \
333 -Wlogical-op-parentheses
Ambroise Vincent067e4d92019-05-24 12:47:43 +0100334endif
335
Yann Gautier957c3532018-12-10 18:08:53 +0100336ifneq (${E},0)
337ERRORS := -Werror
338endif
339
Justin Chadwelle72a1eb2019-07-31 11:36:41 +0100340CPPFLAGS = ${DEFINES} ${INCLUDES} ${MBEDTLS_INC} -nostdinc \
341 $(ERRORS) $(WARNINGS)
Masahiro Yamada0dec9fa2016-12-22 12:51:53 +0900342ASFLAGS += $(CPPFLAGS) $(ASFLAGS_$(ARCH)) \
Julius Werner53456fc2019-07-09 13:49:11 -0700343 -ffreestanding -Wa,--fatal-warnings
Masahiro Yamada0dec9fa2016-12-22 12:51:53 +0900344TF_CFLAGS += $(CPPFLAGS) $(TF_CFLAGS_$(ARCH)) \
Samuel Holland23f5e542019-10-20 16:11:25 -0500345 -ffunction-sections -fdata-sections \
346 -ffreestanding -fno-builtin -fno-common \
347 -Os -std=gnu99
Juan Castilloa3487d12015-08-18 14:23:04 +0100348
Justin Chadwell83e04882019-08-20 11:01:52 +0100349ifeq (${SANITIZE_UB},on)
350TF_CFLAGS += -fsanitize=undefined -fno-sanitize-recover
351endif
352ifeq (${SANITIZE_UB},trap)
353TF_CFLAGS += -fsanitize=undefined -fno-sanitize-recover \
354 -fsanitize-undefined-trap-on-error
355endif
356
david cunado34ab6092017-11-30 21:58:01 +0000357GCC_V_OUTPUT := $(shell $(CC) -v 2>&1)
david cunado34ab6092017-11-30 21:58:01 +0000358
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100359# LD = armlink
Varun Wadekar4d034c52019-01-11 14:47:48 -0800360ifneq ($(findstring armlink,$(notdir $(LD))),)
361TF_LDFLAGS += --diag_error=warning --lto_level=O1
362TF_LDFLAGS += --remove --info=unused,unusedsymbols
zelalem-aweked5f45272019-11-12 16:20:17 -0600363TF_LDFLAGS += $(TF_LDFLAGS_$(ARCH))
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100364
365# LD = gcc (used when GCC LTO is enabled)
zelalem-aweked5f45272019-11-12 16:20:17 -0600366else ifneq ($(findstring gcc,$(notdir $(LD))),)
367# Pass ld options with Wl or Xlinker switches
368TF_LDFLAGS += -Wl,--fatal-warnings -O1
369TF_LDFLAGS += -Wl,--gc-sections
370ifeq ($(ENABLE_LTO),1)
371 ifeq (${ARCH},aarch64)
372 TF_LDFLAGS += -flto -fuse-linker-plugin
373 endif
374endif
375# GCC automatically adds fix-cortex-a53-843419 flag when used to link
376# which breaks some builds, so disable if errata fix is not explicitly enabled
377ifneq (${ERRATA_A53_843419},1)
378 TF_LDFLAGS += -mno-fix-cortex-a53-843419
379endif
380TF_LDFLAGS += -nostdlib
381TF_LDFLAGS += $(subst --,-Xlinker --,$(TF_LDFLAGS_$(ARCH)))
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100382
383# LD = gcc-ld (ld) or llvm-ld (ld.lld) or other
Varun Wadekar4d034c52019-01-11 14:47:48 -0800384else
Douglas Raillardd0c82732017-06-22 14:44:48 +0100385TF_LDFLAGS += --fatal-warnings -O1
386TF_LDFLAGS += --gc-sections
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100387# ld.lld doesn't recognize the errata flags,
388# therefore don't add those in that case
389ifeq ($(findstring ld.lld,$(notdir $(LD))),)
Douglas Raillardd0c82732017-06-22 14:44:48 +0100390TF_LDFLAGS += $(TF_LDFLAGS_$(ARCH))
zelalem-aweked5f45272019-11-12 16:20:17 -0600391endif
Ambroise Vincent05c07c52019-07-17 11:08:38 +0100392endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100393
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000394DTC_FLAGS += -I dts -O dtb
Louis Mayencourt6b232d92020-02-28 16:57:30 +0000395DTC_CPPFLAGS += -P -nostdinc -Iinclude -Ifdts -undef \
396 -x assembler-with-cpp $(DEFINES)
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000397
Alexei Fedorov25d7c882020-03-20 18:38:55 +0000398ifeq ($(MEASURED_BOOT),1)
399DTC_CPPFLAGS += -DMEASURED_BOOT -DBL2_HASH_SIZE=${TCG_DIGEST_SIZE}
400endif
401
Juan Castilloa3487d12015-08-18 14:23:04 +0100402################################################################################
403# Common sources and include directories
404################################################################################
dp-arme3cc8382017-05-04 12:15:35 +0100405include lib/compiler-rt/compiler-rt.mk
Juan Castilloa3487d12015-08-18 14:23:04 +0100406
407BL_COMMON_SOURCES += common/bl_common.c \
Soby Mathewaaf15f52017-09-04 11:49:29 +0100408 common/tf_log.c \
Soby Mathewa1941252016-05-05 14:33:33 +0100409 common/${ARCH}/debug.S \
Julius Werner03020da2018-11-27 22:10:56 -0800410 drivers/console/multi_console.c \
Soby Mathewa1941252016-05-05 14:33:33 +0100411 lib/${ARCH}/cache_helpers.S \
412 lib/${ARCH}/misc_helpers.S \
Soby Mathew2f38ce32018-02-08 17:45:12 +0000413 plat/common/plat_bl_common.c \
Soby Mathewaaf15f52017-09-04 11:49:29 +0100414 plat/common/plat_log_common.c \
dp-arm230011c2017-03-07 11:02:47 +0000415 plat/common/${ARCH}/plat_common.c \
Soby Mathewa1941252016-05-05 14:33:33 +0100416 plat/common/${ARCH}/platform_helpers.S \
Roberto Vargas0f8f9852018-05-08 10:27:10 +0100417 ${COMPILER_RT_SRCS}
Ryan Harkind7a6b0f2014-01-13 14:40:13 +0000418
Antonio Nino Diazeea20fc2018-08-16 15:42:44 +0100419ifeq ($(notdir $(CC)),armclang)
420BL_COMMON_SOURCES += lib/${ARCH}/armclang_printf.S
421endif
422
Justin Chadwell83e04882019-08-20 11:01:52 +0100423ifeq (${SANITIZE_UB},on)
424BL_COMMON_SOURCES += plat/common/ubsan.c
425endif
426
Yann Gautier2cf1dbc2018-06-18 16:00:23 +0200427INCLUDES += -Iinclude \
Antonio Nino Diaz8d1ade62018-12-17 17:20:57 +0000428 -Iinclude/arch/${ARCH} \
Antonio Nino Diaze0f90632018-12-14 00:18:21 +0000429 -Iinclude/lib/cpus/${ARCH} \
430 -Iinclude/lib/el3_runtime/${ARCH} \
431 ${PLAT_INCLUDES} \
432 ${SPD_INCLUDES}
433
Antonio Nino Diazc3a2cf22018-11-19 11:48:30 +0000434include common/backtrace/backtrace.mk
435
Juan Castilloa3487d12015-08-18 14:23:04 +0100436################################################################################
437# Generic definitions
438################################################################################
439
Evan Lloydf2697142015-12-02 18:17:37 +0000440include ${MAKE_HELPERS_DIRECTORY}plat_helpers.mk
441
Ryan Harkin25cff832014-01-13 12:37:03 +0000442BUILD_BASE := ./build
443BUILD_PLAT := ${BUILD_BASE}/${PLAT}/${BUILD_TYPE}
Achin Gupta4f6ad662013-10-25 09:08:21 +0100444
Evan Lloydf2697142015-12-02 18:17:37 +0000445SPDS := $(sort $(filter-out none, $(patsubst services/spd/%,%,$(wildcard services/spd/*))))
Ryan Harkin72ee3312014-01-15 16:55:07 +0000446
Juan Castilloa3487d12015-08-18 14:23:04 +0100447# Platforms providing their own TBB makefile may override this value
448INCLUDE_TBBR_MK := 1
449
Jeenu Viswambharane5c39fd2014-05-16 11:38:10 +0100450
Juan Castilloa3487d12015-08-18 14:23:04 +0100451################################################################################
452# Include SPD Makefile if one has been specified
453################################################################################
454
455ifneq (${SPD},none)
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000456 ifeq (${ARCH},aarch32)
Sandrine Bailleux247e3392018-10-03 14:56:38 +0200457 $(error "Error: SPD is incompatible with AArch32.")
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000458 endif
459
460 ifdef EL3_PAYLOAD_BASE
Sandrine Bailleux03897bb2015-11-26 16:31:34 +0000461 $(warning "SPD and EL3_PAYLOAD_BASE are incompatible build options.")
462 $(warning "The SPD and its BL32 companion will be present but ignored.")
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000463 endif
Achin Gupta60b7b8a2019-10-11 15:50:43 +0100464
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000465 ifeq (${SPD},spmd)
Max Shvetsove7fd80e2020-02-25 13:55:00 +0000466 $(warning "SPMD is an experimental feature")
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000467 # SPMD is located in std_svc directory
468 SPD_DIR := std_svc
Juan Castilloa3487d12015-08-18 14:23:04 +0100469
Max Shvetsove7fd80e2020-02-25 13:55:00 +0000470 ifeq ($(SPMD_SPM_AT_SEL2),1)
471 ifeq ($(CTX_INCLUDE_EL2_REGS),0)
472 $(error SPMD with SPM at S-EL2 requires CTX_INCLUDE_EL2_REGS option)
473 endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100474 endif
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000475 else
476 # All other SPDs in spd directory
477 SPD_DIR := spd
478 endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100479
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000480 # We expect to locate an spd.mk under the specified SPD directory
481 SPD_MAKE := $(wildcard services/${SPD_DIR}/${SPD}/${SPD}.mk)
482
483 ifeq (${SPD_MAKE},)
484 $(error Error: No services/${SPD_DIR}/${SPD}/${SPD}.mk located)
485 endif
486 $(info Including ${SPD_MAKE})
487 include ${SPD_MAKE}
488
489 # If there's BL32 companion for the chosen SPD, we expect that the SPD's
490 # Makefile would set NEED_BL32 to "yes". In this case, the build system
491 # supports two mutually exclusive options:
492 # * BL32 is built from source: then BL32_SOURCES must contain the list
493 # of source files to build BL32
494 # * BL32 is a prebuilt binary: then BL32 must point to the image file
495 # that will be included in the FIP
496 # If both BL32_SOURCES and BL32 are defined, the binary takes precedence
497 # over the sources.
Juan Castilloa3487d12015-08-18 14:23:04 +0100498endif
499
Douglas Raillard306593d2017-02-24 18:14:15 +0000500################################################################################
Juan Castilloa3487d12015-08-18 14:23:04 +0100501# Include the platform specific Makefile after the SPD Makefile (the platform
502# makefile may use all previous definitions in this file)
503################################################################################
Jeenu Viswambharane5c39fd2014-05-16 11:38:10 +0100504
Dan Handley81be1002015-03-27 17:44:35 +0000505include ${PLAT_MAKEFILE_FULL}
Jon Medhurst66573cb2014-02-13 15:19:28 +0000506
Masahiro Yamadae2395b42017-11-04 03:12:28 +0900507$(eval $(call MAKE_PREREQ_DIR,${BUILD_PLAT}))
508
Etienne Carriere1374fcb2017-11-08 13:48:40 +0100509ifeq (${ARM_ARCH_MAJOR},7)
510include make_helpers/armv7-a-cpus.mk
511endif
512
Masahiro Yamadac3ca8812020-01-17 13:44:37 +0900513PIE_FOUND := $(findstring --enable-default-pie,${GCC_V_OUTPUT})
514ifneq ($(PIE_FOUND),)
515 TF_CFLAGS += -fno-PIE
516endif
517
518ifneq ($(findstring gcc,$(notdir $(LD))),)
519 PIE_LDFLAGS += -Wl,-pie -Wl,--no-dynamic-linker
Soby Mathew078f1a42018-08-28 11:13:55 +0100520else
Masahiro Yamadac3ca8812020-01-17 13:44:37 +0900521 PIE_LDFLAGS += -pie --no-dynamic-linker
522endif
523
524ifeq ($(ENABLE_PIE),1)
Masahiro Yamada65d699d2020-01-17 13:45:02 +0900525ifeq ($(BL2_AT_EL3),1)
526ifneq ($(BL2_IN_XIP_MEM),1)
527 BL2_CFLAGS += -fpie
528 BL2_LDFLAGS += $(PIE_LDFLAGS)
529endif
530endif
Masahiro Yamadac3ca8812020-01-17 13:44:37 +0900531 BL31_CFLAGS += -fpie
532 BL31_LDFLAGS += $(PIE_LDFLAGS)
Masahiro Yamadade634f82020-01-17 13:45:14 +0900533ifeq ($(ARCH),aarch64)
534 BL32_CFLAGS += -fpie
535 BL32_LDFLAGS += $(PIE_LDFLAGS)
536endif
Soby Mathew078f1a42018-08-28 11:13:55 +0100537endif
538
Masahiro Yamada003dd762020-03-26 13:18:48 +0900539ifeq (${ARCH},aarch64)
540BL1_CFLAGS += -DIMAGE_AT_EL3
541ifeq ($(BL2_AT_EL3),1)
542BL2_CFLAGS += -DIMAGE_AT_EL3
543else
544BL2_CFLAGS += -DIMAGE_AT_EL1
545endif
546BL2U_CFLAGS += -DIMAGE_AT_EL1
547BL31_CFLAGS += -DIMAGE_AT_EL3
548BL32_CFLAGS += -DIMAGE_AT_EL1
549endif
550
Sandrine Bailleuxd4817592016-01-13 14:57:38 +0000551# Include the CPU specific operations makefile, which provides default
552# values for all CPU errata workarounds and CPU specific optimisations.
553# This can be overridden by the platform.
Soby Mathew937488b2014-09-22 14:13:34 +0100554include lib/cpus/cpu-ops.mk
Soby Mathew802f8652014-08-14 16:19:29 +0100555
dp-armcdd03cb2017-02-15 11:07:55 +0000556ifeq (${ARCH},aarch32)
557NEED_BL32 := yes
558
559################################################################################
560# Build `AARCH32_SP` as BL32 image for AArch32
561################################################################################
562ifneq (${AARCH32_SP},none)
563# We expect to locate an sp.mk under the specified AARCH32_SP directory
564AARCH32_SP_MAKE := $(wildcard bl32/${AARCH32_SP}/${AARCH32_SP}.mk)
565
566ifeq (${AARCH32_SP_MAKE},)
567 $(error Error: No bl32/${AARCH32_SP}/${AARCH32_SP}.mk located)
568endif
569
570$(info Including ${AARCH32_SP_MAKE})
571include ${AARCH32_SP_MAKE}
572endif
573
Varun Wadekar3f9002c2019-01-31 09:22:30 -0800574endif
575
576################################################################################
577# Include libc if not overridden
578################################################################################
579ifeq (${OVERRIDE_LIBC},0)
580include lib/libc/libc.mk
dp-armcdd03cb2017-02-15 11:07:55 +0000581endif
Juan Castilloa3487d12015-08-18 14:23:04 +0100582
583################################################################################
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000584# Check incompatible options
585################################################################################
586
587ifdef EL3_PAYLOAD_BASE
Antonio Nino Diaz2b8277b2016-04-06 17:31:57 +0100588 ifdef PRELOADED_BL33_BASE
589 $(warning "PRELOADED_BL33_BASE and EL3_PAYLOAD_BASE are \
590 incompatible build options. EL3_PAYLOAD_BASE has priority.")
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000591 endif
Qixiang Xube9bd9d2017-08-24 11:03:23 +0800592 ifneq (${GENERATE_COT},0)
593 $(error "GENERATE_COT and EL3_PAYLOAD_BASE are incompatible build options.")
594 endif
595 ifneq (${TRUSTED_BOARD_BOOT},0)
596 $(error "TRUSTED_BOARD_BOOT and EL3_PAYLOAD_BASE are incompatible build options.")
597 endif
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000598endif
599
600ifeq (${NEED_BL33},yes)
601 ifdef EL3_PAYLOAD_BASE
602 $(warning "BL33 image is not needed when option \
603 BL33_PAYLOAD_BASE is used and won't be added to the FIP file.")
604 endif
Antonio Nino Diaz2b8277b2016-04-06 17:31:57 +0100605 ifdef PRELOADED_BL33_BASE
606 $(warning "BL33 image is not needed when option \
607 PRELOADED_BL33_BASE is used and won't be added to the FIP \
608 file.")
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000609 endif
610endif
611
Jeenu Viswambharan7ed2cbc2017-01-06 16:14:42 +0000612# When building for systems with hardware-assisted coherency, there's no need to
613# use USE_COHERENT_MEM. Require that USE_COHERENT_MEM must be set to 0 too.
614ifeq ($(HW_ASSISTED_COHERENCY)-$(USE_COHERENT_MEM),1-1)
615$(error USE_COHERENT_MEM cannot be enabled with HW_ASSISTED_COHERENCY)
616endif
Yatharth Kocharf528faf2016-06-28 16:58:26 +0100617
Jiafei Pan43a7bf42018-03-21 07:20:09 +0000618#For now, BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is 1.
619ifeq ($(BL2_AT_EL3)-$(BL2_IN_XIP_MEM),0-1)
620$(error "BL2_IN_XIP_MEM is only supported when BL2_AT_EL3 is enabled")
621endif
622
Jeenu Viswambharan9a7ce2f2018-04-04 16:07:11 +0100623# For RAS_EXTENSION, require that EAs are handled in EL3 first
624ifeq ($(RAS_EXTENSION),1)
625 ifneq ($(HANDLE_EA_EL3_FIRST),1)
626 $(error For RAS_EXTENSION, HANDLE_EA_EL3_FIRST must also be 1)
627 endif
628endif
629
Jeenu Viswambharanf00da742017-12-08 12:13:51 +0000630# When FAULT_INJECTION_SUPPORT is used, require that RAS_EXTENSION is enabled
631ifeq ($(FAULT_INJECTION_SUPPORT),1)
632 ifneq ($(RAS_EXTENSION),1)
633 $(error For FAULT_INJECTION_SUPPORT, RAS_EXTENSION must also be 1)
634 endif
635endif
636
Roberto Vargas025946a2018-09-24 17:20:48 +0100637# DYN_DISABLE_AUTH can be set only when TRUSTED_BOARD_BOOT=1
Soby Mathew9fe88042018-03-26 12:43:37 +0100638ifeq ($(DYN_DISABLE_AUTH), 1)
639 ifeq (${TRUSTED_BOARD_BOOT}, 0)
640 $(error "TRUSTED_BOARD_BOOT must be enabled for DYN_DISABLE_AUTH to be set.")
641 endif
Soby Mathew9fe88042018-03-26 12:43:37 +0100642endif
643
Antonio Nino Diaz25cda672019-02-19 11:53:51 +0000644# If pointer authentication is used in the firmware, make sure that all the
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100645# registers associated to it are also saved and restored.
646# Not doing it would leak the value of the keys used by EL3 to EL1 and S-EL1.
Antonio Nino Diaz25cda672019-02-19 11:53:51 +0000647ifeq ($(ENABLE_PAUTH),1)
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100648 ifeq ($(CTX_INCLUDE_PAUTH_REGS),0)
649 $(error Pointer Authentication requires CTX_INCLUDE_PAUTH_REGS=1)
Alexei Fedorov2831d582019-03-13 11:05:07 +0000650 endif
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100651endif
652
653ifeq ($(CTX_INCLUDE_PAUTH_REGS),1)
654 ifneq (${ARCH},aarch64)
655 $(error CTX_INCLUDE_PAUTH_REGS requires AArch64)
656 else
657 $(info CTX_INCLUDE_PAUTH_REGS is an experimental feature)
Antonio Nino Diaz25cda672019-02-19 11:53:51 +0000658 endif
659endif
660
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100661ifeq ($(ENABLE_PAUTH),1)
662 $(info Pointer Authentication is an experimental feature)
663endif
664
665ifeq ($(ENABLE_BTI),1)
666 $(info Branch Protection is an experimental feature)
667endif
668
Justin Chadwell1c7c13a2019-07-18 14:25:33 +0100669ifeq ($(CTX_INCLUDE_MTE_REGS),1)
670 ifneq (${ARCH},aarch64)
671 $(error CTX_INCLUDE_MTE_REGS requires AArch64)
672 else
673 $(info CTX_INCLUDE_MTE_REGS is an experimental feature)
674 endif
675endif
676
Alexei Fedorov913cb7e2020-01-23 14:27:38 +0000677ifeq ($(MEASURED_BOOT),1)
678 ifneq (${TRUSTED_BOARD_BOOT},1)
Sumit Garg392e4df2019-11-15 10:43:00 +0530679 $(error MEASURED_BOOT requires TRUSTED_BOARD_BOOT=1)
Alexei Fedorov913cb7e2020-01-23 14:27:38 +0000680 else
681 $(info MEASURED_BOOT is an experimental feature)
682 endif
683endif
684
Petre-Ionut Tudore5a6fef2019-11-07 15:18:03 +0000685ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1)
686 ifeq (${ALLOW_RO_XLAT_TABLES}, 1)
687 $(error "ALLOW_RO_XLAT_TABLES requires translation tables library v2")
688 endif
689endif
690
Sumit Garg392e4df2019-11-15 10:43:00 +0530691ifneq (${DECRYPTION_SUPPORT},none)
692 ifeq (${TRUSTED_BOARD_BOOT}, 0)
693 $(error TRUSTED_BOARD_BOOT must be enabled for DECRYPTION_SUPPORT to be set)
694 else
695 $(info DECRYPTION_SUPPORT is an experimental feature)
696 endif
697endif
698
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000699################################################################################
Juan Castilloa3487d12015-08-18 14:23:04 +0100700# Process platform overrideable behaviour
701################################################################################
702
John Tsichritzis63801cd2019-07-05 14:22:12 +0100703# Using BL2 implies that a BL33 image also needs to be supplied for the FIP and
704# Certificate generation tools. This flag can be overridden by the platform.
Jon Medhurst66573cb2014-02-13 15:19:28 +0000705ifdef BL2_SOURCES
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000706 ifdef EL3_PAYLOAD_BASE
707 # If booting an EL3 payload there is no need for a BL33 image
708 # in the FIP file.
709 NEED_BL33 := no
710 else
Antonio Nino Diaz2b8277b2016-04-06 17:31:57 +0100711 ifdef PRELOADED_BL33_BASE
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000712 # If booting a BL33 preloaded image there is no need of
713 # another one in the FIP file.
714 NEED_BL33 := no
715 else
716 NEED_BL33 ?= yes
717 endif
718 endif
Jon Medhurst66573cb2014-02-13 15:19:28 +0000719endif
Achin Gupta4f6ad662013-10-25 09:08:21 +0100720
Masahiro Yamadae76b4f82017-04-05 19:11:41 +0900721# If SCP_BL2 is given, we always want FIP to include it.
722ifdef SCP_BL2
723 NEED_SCP_BL2 := yes
724endif
725
Soby Mathewbf169232017-11-14 14:10:10 +0000726# For AArch32, BL31 is not currently supported.
727ifneq (${ARCH},aarch32)
728 ifdef BL31_SOURCES
729 # When booting an EL3 payload, there is no need to compile the BL31 image nor
730 # put it in the FIP.
731 ifndef EL3_PAYLOAD_BASE
732 NEED_BL31 := yes
733 endif
734 endif
735endif
736
Juan Castilloa3487d12015-08-18 14:23:04 +0100737# Process TBB related flags
738ifneq (${GENERATE_COT},0)
739 # Common cert_create options
740 ifneq (${CREATE_KEYS},0)
741 $(eval CRT_ARGS += -n)
Yatharth Kochard1a93432015-10-12 12:33:47 +0100742 $(eval FWU_CRT_ARGS += -n)
Juan Castilloa3487d12015-08-18 14:23:04 +0100743 ifneq (${SAVE_KEYS},0)
744 $(eval CRT_ARGS += -k)
Yatharth Kochard1a93432015-10-12 12:33:47 +0100745 $(eval FWU_CRT_ARGS += -k)
Juan Castilloa3487d12015-08-18 14:23:04 +0100746 endif
747 endif
748 # Include TBBR makefile (unless the platform indicates otherwise)
749 ifeq (${INCLUDE_TBBR_MK},1)
750 include make_helpers/tbbr/tbbr_tools.mk
751 endif
Ryan Harkin25cff832014-01-13 12:37:03 +0000752endif
Achin Gupta4f6ad662013-10-25 09:08:21 +0100753
Masahiro Yamada4d87eb42016-12-25 13:52:22 +0900754ifneq (${FIP_ALIGN},0)
755FIP_ARGS += --align ${FIP_ALIGN}
756endif
757
Juan Castilloa3487d12015-08-18 14:23:04 +0100758################################################################################
Michalis Pappas0f223c52018-03-20 13:01:27 +0800759# Include libraries' Makefile that are used in all BL
760################################################################################
761
762include lib/stack_protector/stack_protector.mk
763
764################################################################################
dp-arm4972ec52016-05-25 16:20:20 +0100765# Auxiliary tools (fiptool, cert_create, etc)
Juan Castilloa3487d12015-08-18 14:23:04 +0100766################################################################################
Achin Gupta375f5382014-02-18 18:12:48 +0000767
Juan Castilloa3487d12015-08-18 14:23:04 +0100768# Variables for use with Certificate Generation Tool
769CRTTOOLPATH ?= tools/cert_create
Evan Lloyd004c9a52015-12-03 11:35:40 +0000770CRTTOOL ?= ${CRTTOOLPATH}/cert_create${BIN_EXT}
Achin Gupta375f5382014-02-18 18:12:48 +0000771
Sumit Gargb6c4b3c2019-11-11 18:46:36 +0530772# Variables for use with Firmware Encryption Tool
773ENCTOOLPATH ?= tools/encrypt_fw
774ENCTOOL ?= ${ENCTOOLPATH}/encrypt_fw${BIN_EXT}
775
Juan Castilloa3487d12015-08-18 14:23:04 +0100776# Variables for use with Firmware Image Package
dp-arm4972ec52016-05-25 16:20:20 +0100777FIPTOOLPATH ?= tools/fiptool
778FIPTOOL ?= ${FIPTOOLPATH}/fiptool${BIN_EXT}
James Morrisseyeaaeece2013-11-01 13:56:59 +0000779
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +0000780# Variables for use with sptool
781SPTOOLPATH ?= tools/sptool
782SPTOOL ?= ${SPTOOLPATH}/sptool${BIN_EXT}
Manish Pandey3f90ad72020-01-14 11:52:05 +0000783SP_MK_GEN ?= ${SPTOOLPATH}/sp_mk_generator.py
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +0000784
Roberto Vargase92111a2018-05-22 16:05:42 +0100785# Variables for use with ROMLIB
786ROMLIBPATH ?= lib/romlib
787
Louis Mayencourtcc3e8b82019-10-16 14:30:51 +0100788# Variable for use with Python
789PYTHON ?= python3
790
791# Variables for use with PRINT_MEMORY_MAP
792PRINT_MEMORY_MAP_PATH ?= tools/memory
793PRINT_MEMORY_MAP ?= ${PRINT_MEMORY_MAP_PATH}/print_memory_map.py
794
Madhukar Pappireddy46adb1b2020-01-28 12:41:20 -0600795# Variables for use with documentation build using Sphinx tool
796DOCS_PATH ?= docs
797
Soby Mathew574e01e2017-02-14 10:05:07 +0000798################################################################################
799# Include BL specific makefiles
800################################################################################
801ifdef BL1_SOURCES
802NEED_BL1 := yes
803include bl1/bl1.mk
804endif
805
806ifdef BL2_SOURCES
807NEED_BL2 := yes
808include bl2/bl2.mk
809endif
810
Soby Mathew574e01e2017-02-14 10:05:07 +0000811ifdef BL2U_SOURCES
812NEED_BL2U := yes
813include bl2u/bl2u.mk
814endif
815
Soby Mathewbf169232017-11-14 14:10:10 +0000816ifeq (${NEED_BL31},yes)
Soby Mathew574e01e2017-02-14 10:05:07 +0000817ifdef BL31_SOURCES
Soby Mathew574e01e2017-02-14 10:05:07 +0000818include bl31/bl31.mk
819endif
820endif
Soby Mathew574e01e2017-02-14 10:05:07 +0000821
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000822ifdef FDT_SOURCES
823NEED_FDT := yes
824endif
825
Soby Mathew574e01e2017-02-14 10:05:07 +0000826################################################################################
Juan Castilloa3487d12015-08-18 14:23:04 +0100827# Build options checks
828################################################################################
829
Petre-Ionut Tudore5a6fef2019-11-07 15:18:03 +0000830$(eval $(call assert_boolean,ALLOW_RO_XLAT_TABLES))
Sandrine Bailleuxb21b02f2015-10-30 15:05:17 +0000831$(eval $(call assert_boolean,COLD_BOOT_SINGLE_CPU))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100832$(eval $(call assert_boolean,CREATE_KEYS))
833$(eval $(call assert_boolean,CTX_INCLUDE_AARCH32_REGS))
834$(eval $(call assert_boolean,CTX_INCLUDE_FPREGS))
Antonio Nino Diaz594811b2019-01-31 11:58:00 +0000835$(eval $(call assert_boolean,CTX_INCLUDE_PAUTH_REGS))
Justin Chadwell1c7c13a2019-07-18 14:25:33 +0100836$(eval $(call assert_boolean,CTX_INCLUDE_MTE_REGS))
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000837$(eval $(call assert_boolean,CTX_INCLUDE_EL2_REGS))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100838$(eval $(call assert_boolean,DEBUG))
Soby Mathew9fe88042018-03-26 12:43:37 +0100839$(eval $(call assert_boolean,DYN_DISABLE_AUTH))
Jeenu Viswambharanef29b452018-02-06 07:50:18 +0000840$(eval $(call assert_boolean,EL3_EXCEPTION_HANDLING))
Dimitris Papastamosfcedb692017-10-16 11:40:10 +0100841$(eval $(call assert_boolean,ENABLE_AMU))
Antonio Nino Diaz808c2292017-04-18 15:16:05 +0100842$(eval $(call assert_boolean,ENABLE_ASSERTIONS))
Jeenu Viswambharan2da918c2018-07-31 16:13:33 +0100843$(eval $(call assert_boolean,ENABLE_MPAM_FOR_LOWER_ELS))
Soby Mathew078f1a42018-08-28 11:13:55 +0100844$(eval $(call assert_boolean,ENABLE_PIE))
Yatharth Kochar9518d022016-03-11 14:20:19 +0000845$(eval $(call assert_boolean,ENABLE_PMF))
Yatharth Kochar241ec6c2016-05-09 18:26:35 +0100846$(eval $(call assert_boolean,ENABLE_PSCI_STAT))
dp-arm3cac7862016-09-19 11:18:44 +0100847$(eval $(call assert_boolean,ENABLE_RUNTIME_INSTRUMENTATION))
Jeenu Viswambharand73dcf32017-07-19 13:52:12 +0100848$(eval $(call assert_boolean,ENABLE_SPE_FOR_LOWER_ELS))
David Cunadoce88eee2017-10-20 11:30:57 +0100849$(eval $(call assert_boolean,ENABLE_SVE_FOR_NS))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100850$(eval $(call assert_boolean,ERROR_DEPRECATED))
Jeenu Viswambharanf00da742017-12-08 12:13:51 +0000851$(eval $(call assert_boolean,FAULT_INJECTION_SUPPORT))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100852$(eval $(call assert_boolean,GENERATE_COT))
Jeenu Viswambharanc06f05c2017-09-22 08:32:09 +0100853$(eval $(call assert_boolean,GICV2_G0_FOR_EL3))
Jeenu Viswambharan96c7df02017-11-30 12:54:15 +0000854$(eval $(call assert_boolean,HANDLE_EA_EL3_FIRST))
Jeenu Viswambharana10d64e2017-01-04 13:51:42 +0000855$(eval $(call assert_boolean,HW_ASSISTED_COHERENCY))
Louis Mayencourtc1c2bf72020-02-13 08:21:34 +0000856$(eval $(call assert_boolean,INVERTED_MEMMAP))
Alexei Fedorov913cb7e2020-01-23 14:27:38 +0000857$(eval $(call assert_boolean,MEASURED_BOOT))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100858$(eval $(call assert_boolean,NS_TIMER_SWITCH))
Varun Wadekar3f9002c2019-01-31 09:22:30 -0800859$(eval $(call assert_boolean,OVERRIDE_LIBC))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100860$(eval $(call assert_boolean,PL011_GENERIC_UART))
861$(eval $(call assert_boolean,PROGRAMMABLE_RESET_ADDRESS))
862$(eval $(call assert_boolean,PSCI_EXTENDED_STATE_ID))
Jeenu Viswambharan9a7ce2f2018-04-04 16:07:11 +0100863$(eval $(call assert_boolean,RAS_EXTENSION))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100864$(eval $(call assert_boolean,RESET_TO_BL31))
865$(eval $(call assert_boolean,SAVE_KEYS))
866$(eval $(call assert_boolean,SEPARATE_CODE_AND_RODATA))
Samuel Holland31a14e12018-10-17 21:40:18 -0500867$(eval $(call assert_boolean,SEPARATE_NOBITS_REGION))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100868$(eval $(call assert_boolean,SPIN_ON_BL1_EXIT))
Antonio Nino Diazcbccdbf2019-01-21 11:53:29 +0000869$(eval $(call assert_boolean,SPM_MM))
Max Shvetsove7fd80e2020-02-25 13:55:00 +0000870$(eval $(call assert_boolean,SPMD_SPM_AT_SEL2))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100871$(eval $(call assert_boolean,TRUSTED_BOARD_BOOT))
872$(eval $(call assert_boolean,USE_COHERENT_MEM))
Olivier Deprezcb4c5622019-09-19 17:46:46 +0200873$(eval $(call assert_boolean,USE_DEBUGFS))
Louis Mayencourt6b232d92020-02-28 16:57:30 +0000874$(eval $(call assert_boolean,ARM_IO_IN_DTB))
Roberto Vargase92111a2018-05-22 16:05:42 +0100875$(eval $(call assert_boolean,USE_ROMLIB))
Masahiro Yamadaa27c1662017-05-22 12:11:24 +0900876$(eval $(call assert_boolean,USE_TBBR_DEFS))
Soby Mathew043fe9c2017-04-10 22:35:42 +0100877$(eval $(call assert_boolean,WARMBOOT_ENABLE_DCACHE_EARLY))
Roberto Vargase0e99462017-10-30 14:43:43 +0000878$(eval $(call assert_boolean,BL2_AT_EL3))
Jiafei Pan43a7bf42018-03-21 07:20:09 +0000879$(eval $(call assert_boolean,BL2_IN_XIP_MEM))
Hadi Asyrafi461f8f42019-08-20 15:33:27 +0800880$(eval $(call assert_boolean,BL2_INV_DCACHE))
Soby Mathewad042012019-09-25 14:03:41 +0100881$(eval $(call assert_boolean,USE_SPINLOCK_CAS))
Sumit Gargeec52442019-11-14 16:33:45 +0530882$(eval $(call assert_boolean,ENCRYPT_BL31))
883$(eval $(call assert_boolean,ENCRYPT_BL32))
Dan Handley81be1002015-03-27 17:44:35 +0000884
Jeenu Viswambharanfca76802017-01-16 16:52:35 +0000885$(eval $(call assert_numeric,ARM_ARCH_MAJOR))
886$(eval $(call assert_numeric,ARM_ARCH_MINOR))
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100887$(eval $(call assert_numeric,BRANCH_PROTECTION))
Sumit Gargeec52442019-11-14 16:33:45 +0530888$(eval $(call assert_numeric,FW_ENC_STATUS))
Jeenu Viswambharanfca76802017-01-16 16:52:35 +0000889
Justin Chadwellf9b32c12019-07-29 17:13:10 +0100890ifdef KEY_SIZE
891 $(eval $(call assert_numeric,KEY_SIZE))
892endif
893
Justin Chadwell83e04882019-08-20 11:01:52 +0100894ifeq ($(filter $(SANITIZE_UB), on off trap),)
895 $(error "Invalid value for SANITIZE_UB: can be one of on, off, trap")
896endif
897
Juan Castilloa3487d12015-08-18 14:23:04 +0100898################################################################################
899# Add definitions to the cpp preprocessor based on the current build options.
900# This is done after including the platform specific makefile to allow the
901# platform to overwrite the default options
902################################################################################
Jeenu Viswambharand1b60152014-05-12 15:28:47 +0100903
Petre-Ionut Tudore5a6fef2019-11-07 15:18:03 +0000904$(eval $(call add_define,ALLOW_RO_XLAT_TABLES))
Jeenu Viswambharanfca76802017-01-16 16:52:35 +0000905$(eval $(call add_define,ARM_ARCH_MAJOR))
906$(eval $(call add_define,ARM_ARCH_MINOR))
Sandrine Bailleuxb21b02f2015-10-30 15:05:17 +0000907$(eval $(call add_define,COLD_BOOT_SINGLE_CPU))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100908$(eval $(call add_define,CTX_INCLUDE_AARCH32_REGS))
909$(eval $(call add_define,CTX_INCLUDE_FPREGS))
Antonio Nino Diaz594811b2019-01-31 11:58:00 +0000910$(eval $(call add_define,CTX_INCLUDE_PAUTH_REGS))
Jeenu Viswambharanef29b452018-02-06 07:50:18 +0000911$(eval $(call add_define,EL3_EXCEPTION_HANDLING))
Justin Chadwell1c7c13a2019-07-18 14:25:33 +0100912$(eval $(call add_define,CTX_INCLUDE_MTE_REGS))
Max Shvetsovbdf502d2020-02-25 13:56:19 +0000913$(eval $(call add_define,CTX_INCLUDE_EL2_REGS))
Sumit Garg392e4df2019-11-15 10:43:00 +0530914$(eval $(call add_define,DECRYPTION_SUPPORT_${DECRYPTION_SUPPORT}))
Dimitris Papastamosfcedb692017-10-16 11:40:10 +0100915$(eval $(call add_define,ENABLE_AMU))
Antonio Nino Diaz808c2292017-04-18 15:16:05 +0100916$(eval $(call add_define,ENABLE_ASSERTIONS))
Alexei Fedorov90f2e882019-05-24 12:17:09 +0100917$(eval $(call add_define,ENABLE_BTI))
Jeenu Viswambharan2da918c2018-07-31 16:13:33 +0100918$(eval $(call add_define,ENABLE_MPAM_FOR_LOWER_ELS))
Antonio Nino Diaz25cda672019-02-19 11:53:51 +0000919$(eval $(call add_define,ENABLE_PAUTH))
Soby Mathew078f1a42018-08-28 11:13:55 +0100920$(eval $(call add_define,ENABLE_PIE))
Yatharth Kochar9518d022016-03-11 14:20:19 +0000921$(eval $(call add_define,ENABLE_PMF))
Yatharth Kochar241ec6c2016-05-09 18:26:35 +0100922$(eval $(call add_define,ENABLE_PSCI_STAT))
dp-arm3cac7862016-09-19 11:18:44 +0100923$(eval $(call add_define,ENABLE_RUNTIME_INSTRUMENTATION))
Jeenu Viswambharand73dcf32017-07-19 13:52:12 +0100924$(eval $(call add_define,ENABLE_SPE_FOR_LOWER_ELS))
David Cunadoce88eee2017-10-20 11:30:57 +0100925$(eval $(call add_define,ENABLE_SVE_FOR_NS))
Sumit Gargeec52442019-11-14 16:33:45 +0530926$(eval $(call add_define,ENCRYPT_BL31))
927$(eval $(call add_define,ENCRYPT_BL32))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100928$(eval $(call add_define,ERROR_DEPRECATED))
Jeenu Viswambharanf00da742017-12-08 12:13:51 +0000929$(eval $(call add_define,FAULT_INJECTION_SUPPORT))
Jeenu Viswambharanc06f05c2017-09-22 08:32:09 +0100930$(eval $(call add_define,GICV2_G0_FOR_EL3))
Jeenu Viswambharan96c7df02017-11-30 12:54:15 +0000931$(eval $(call add_define,HANDLE_EA_EL3_FIRST))
Jeenu Viswambharana10d64e2017-01-04 13:51:42 +0000932$(eval $(call add_define,HW_ASSISTED_COHERENCY))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100933$(eval $(call add_define,LOG_LEVEL))
Alexei Fedorov913cb7e2020-01-23 14:27:38 +0000934$(eval $(call add_define,MEASURED_BOOT))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100935$(eval $(call add_define,NS_TIMER_SWITCH))
936$(eval $(call add_define,PL011_GENERIC_UART))
937$(eval $(call add_define,PLAT_${PLAT}))
938$(eval $(call add_define,PROGRAMMABLE_RESET_ADDRESS))
939$(eval $(call add_define,PSCI_EXTENDED_STATE_ID))
Jeenu Viswambharan9a7ce2f2018-04-04 16:07:11 +0100940$(eval $(call add_define,RAS_EXTENSION))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100941$(eval $(call add_define,RESET_TO_BL31))
942$(eval $(call add_define,SEPARATE_CODE_AND_RODATA))
Samuel Holland31a14e12018-10-17 21:40:18 -0500943$(eval $(call add_define,SEPARATE_NOBITS_REGION))
Daniel Boulby468f0d72018-09-18 11:45:51 +0100944$(eval $(call add_define,RECLAIM_INIT_CODE))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100945$(eval $(call add_define,SPD_${SPD}))
946$(eval $(call add_define,SPIN_ON_BL1_EXIT))
Antonio Nino Diazcbccdbf2019-01-21 11:53:29 +0000947$(eval $(call add_define,SPM_MM))
Max Shvetsove7fd80e2020-02-25 13:55:00 +0000948$(eval $(call add_define,SPMD_SPM_AT_SEL2))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100949$(eval $(call add_define,TRUSTED_BOARD_BOOT))
950$(eval $(call add_define,USE_COHERENT_MEM))
Olivier Deprezcb4c5622019-09-19 17:46:46 +0200951$(eval $(call add_define,USE_DEBUGFS))
Louis Mayencourt6b232d92020-02-28 16:57:30 +0000952$(eval $(call add_define,ARM_IO_IN_DTB))
Roberto Vargase92111a2018-05-22 16:05:42 +0100953$(eval $(call add_define,USE_ROMLIB))
Masahiro Yamadaa27c1662017-05-22 12:11:24 +0900954$(eval $(call add_define,USE_TBBR_DEFS))
Soby Mathew043fe9c2017-04-10 22:35:42 +0100955$(eval $(call add_define,WARMBOOT_ENABLE_DCACHE_EARLY))
Roberto Vargase0e99462017-10-30 14:43:43 +0000956$(eval $(call add_define,BL2_AT_EL3))
Jiafei Pan43a7bf42018-03-21 07:20:09 +0000957$(eval $(call add_define,BL2_IN_XIP_MEM))
Hadi Asyrafi461f8f42019-08-20 15:33:27 +0800958$(eval $(call add_define,BL2_INV_DCACHE))
Soby Mathewad042012019-09-25 14:03:41 +0100959$(eval $(call add_define,USE_SPINLOCK_CAS))
Jeenu Viswambharan615ff392016-10-24 14:31:51 +0100960
Justin Chadwell83e04882019-08-20 11:01:52 +0100961ifeq (${SANITIZE_UB},trap)
962 $(eval $(call add_define,MONITOR_TRAPS))
963endif
964
Sandrine Bailleux03897bb2015-11-26 16:31:34 +0000965# Define the EL3_PAYLOAD_BASE flag only if it is provided.
966ifdef EL3_PAYLOAD_BASE
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000967 $(eval $(call add_define,EL3_PAYLOAD_BASE))
968else
Antonio Nino Diaz2b8277b2016-04-06 17:31:57 +0100969 # Define the PRELOADED_BL33_BASE flag only if it is provided and
970 # EL3_PAYLOAD_BASE is not defined, as it has priority.
971 ifdef PRELOADED_BL33_BASE
972 $(eval $(call add_define,PRELOADED_BL33_BASE))
Antonio Nino Diazfaf573a2016-02-15 14:53:10 +0000973 endif
Sandrine Bailleux03897bb2015-11-26 16:31:34 +0000974endif
Soby Mathew85dbf5a2015-04-07 12:16:56 +0100975
Soby Mathew9fe88042018-03-26 12:43:37 +0100976# Define the DYN_DISABLE_AUTH flag only if set.
977ifeq (${DYN_DISABLE_AUTH},1)
978$(eval $(call add_define,DYN_DISABLE_AUTH))
979endif
980
Varun Wadekar4d034c52019-01-11 14:47:48 -0800981ifneq ($(findstring armlink,$(notdir $(LD))),)
982$(eval $(call add_define,USE_ARM_LINK))
983endif
984
Manish Pandey3f90ad72020-01-14 11:52:05 +0000985# Generate and include sp_gen.mk if SPD is spmd and SP_LAYOUT_FILE is defined
Manish Pandey3f90ad72020-01-14 11:52:05 +0000986ifeq (${SPD},spmd)
Olivier Deprez042db532020-03-19 09:27:11 +0100987ifdef SP_LAYOUT_FILE
988 ifeq (${SPMD_SPM_AT_SEL2},0)
989 $(error "SPMD with SPM at S-EL1 does not require SP_LAYOUT_FILE")
990 endif
Manish Pandey3f90ad72020-01-14 11:52:05 +0000991 -include $(BUILD_PLAT)/sp_gen.mk
992 FIP_DEPS += sp
993 NEED_SP_PKG := yes
994else
Olivier Deprez042db532020-03-19 09:27:11 +0100995 ifeq (${SPMD_SPM_AT_SEL2},1)
996 $(error "SPMD with SPM at S-EL2 require SP_LAYOUT_FILE")
997 endif
Manish Pandey3f90ad72020-01-14 11:52:05 +0000998endif
999endif
1000
Juan Castilloa3487d12015-08-18 14:23:04 +01001001################################################################################
Juan Castilloa3487d12015-08-18 14:23:04 +01001002# Build targets
1003################################################################################
Achin Gupta4f6ad662013-10-25 09:08:21 +01001004
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301005.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 +01001006.SUFFIXES:
Achin Gupta4f6ad662013-10-25 09:08:21 +01001007
Juan Castilloa3487d12015-08-18 14:23:04 +01001008all: msg_start
Harry Liebelf58ad362014-01-10 18:00:33 +00001009
Juan Castilloa3487d12015-08-18 14:23:04 +01001010msg_start:
1011 @echo "Building ${PLAT}"
Juan Castillo11abdcd2014-10-21 11:30:42 +01001012
Soby Mathew18a62042015-10-26 14:29:21 +00001013ifeq (${ERROR_DEPRECATED},0)
Julius Werner53456fc2019-07-09 13:49:11 -07001014# Check if deprecated declarations and cpp warnings should be treated as error or not.
Varun Wadekar4d034c52019-01-11 14:47:48 -08001015ifneq ($(findstring clang,$(notdir $(CC))),)
1016 CPPFLAGS += -Wno-error=deprecated-declarations
1017else
Dan Handley6fa89a22018-02-27 16:03:58 +00001018 CPPFLAGS += -Wno-error=deprecated-declarations -Wno-error=cpp
Soby Mathew18a62042015-10-26 14:29:21 +00001019endif
Julius Werner53456fc2019-07-09 13:49:11 -07001020# __ASSEMBLY__ is deprecated in favor of the compiler-builtin __ASSEMBLER__.
1021ASFLAGS += -D__ASSEMBLY__
Julius Werner8e0ef0f2019-07-09 14:02:43 -07001022# AARCH32/AARCH64 macros are deprecated in favor of the compiler-builtin __aarch64__.
1023ifeq (${ARCH},aarch32)
1024 $(eval $(call add_define,AARCH32))
1025else
1026 $(eval $(call add_define,AARCH64))
1027endif
Julius Werner53456fc2019-07-09 13:49:11 -07001028endif # !ERROR_DEPRECATED
Soby Mathew18a62042015-10-26 14:29:21 +00001029
Roberto Vargase92111a2018-05-22 16:05:42 +01001030$(eval $(call MAKE_LIB_DIRS))
Roberto Vargas0f8f9852018-05-08 10:27:10 +01001031$(eval $(call MAKE_LIB,c))
Roberto Vargas21360f32018-05-08 10:27:10 +01001032
Juan Castilloa3487d12015-08-18 14:23:04 +01001033# Expand build macros for the different images
1034ifeq (${NEED_BL1},yes)
1035$(eval $(call MAKE_BL,1))
1036endif
Juan Castillo11abdcd2014-10-21 11:30:42 +01001037
Juan Castilloa3487d12015-08-18 14:23:04 +01001038ifeq (${NEED_BL2},yes)
Roberto Vargas53c052b2018-01-02 11:23:41 +00001039ifeq (${BL2_AT_EL3}, 0)
1040FIP_BL2_ARGS := tb-fw
1041endif
1042
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001043$(if ${BL2}, $(eval $(call TOOL_ADD_IMG,bl2,--${FIP_BL2_ARGS})),\
Roberto Vargas53c052b2018-01-02 11:23:41 +00001044 $(eval $(call MAKE_BL,2,${FIP_BL2_ARGS})))
Juan Castilloa3487d12015-08-18 14:23:04 +01001045endif
Juan Castillo11abdcd2014-10-21 11:30:42 +01001046
Masahiro Yamadae76b4f82017-04-05 19:11:41 +09001047ifeq (${NEED_SCP_BL2},yes)
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001048$(eval $(call TOOL_ADD_IMG,scp_bl2,--scp-fw))
Masahiro Yamadae76b4f82017-04-05 19:11:41 +09001049endif
1050
Juan Castilloa3487d12015-08-18 14:23:04 +01001051ifeq (${NEED_BL31},yes)
1052BL31_SOURCES += ${SPD_SOURCES}
Madhukar Pappireddyae9677b2020-01-27 13:37:51 -06001053# Sort BL31 source files to remove duplicates
1054BL31_SOURCES := $(sort ${BL31_SOURCES})
Sumit Gargeec52442019-11-14 16:33:45 +05301055ifneq (${DECRYPTION_SUPPORT},none)
1056$(if ${BL31}, $(eval $(call TOOL_ADD_IMG,bl31,--soc-fw,,$(ENCRYPT_BL31))),\
1057 $(eval $(call MAKE_BL,31,soc-fw,,$(ENCRYPT_BL31))))
1058else
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001059$(if ${BL31}, $(eval $(call TOOL_ADD_IMG,bl31,--soc-fw)),\
Juan Castillo8e04dec2016-01-05 11:55:36 +00001060 $(eval $(call MAKE_BL,31,soc-fw)))
Juan Castilloa3487d12015-08-18 14:23:04 +01001061endif
Sumit Gargeec52442019-11-14 16:33:45 +05301062endif
Juan Castillo379954c2014-11-04 17:36:40 +00001063
Juan Castillo671b8db2015-11-12 10:59:26 +00001064# If a BL32 image is needed but neither BL32 nor BL32_SOURCES is defined, the
Masahiro Yamada4d156802018-01-26 11:42:01 +09001065# build system will call TOOL_ADD_IMG to print a warning message and abort the
Juan Castillo671b8db2015-11-12 10:59:26 +00001066# process. Note that the dependency on BL32 applies to the FIP only.
Juan Castilloa3487d12015-08-18 14:23:04 +01001067ifeq (${NEED_BL32},yes)
Madhukar Pappireddyae9677b2020-01-27 13:37:51 -06001068# Sort BL32 source files to remove duplicates
1069BL32_SOURCES := $(sort ${BL32_SOURCES})
Masahiro Yamada6ced1b22018-01-26 11:42:01 +09001070BUILD_BL32 := $(if $(BL32),,$(if $(BL32_SOURCES),1))
1071
Sumit Gargeec52442019-11-14 16:33:45 +05301072ifneq (${DECRYPTION_SUPPORT},none)
1073$(if ${BUILD_BL32}, $(eval $(call MAKE_BL,32,tos-fw,,$(ENCRYPT_BL32))),\
1074 $(eval $(call TOOL_ADD_IMG,bl32,--tos-fw,,$(ENCRYPT_BL32))))
1075else
Masahiro Yamada6ced1b22018-01-26 11:42:01 +09001076$(if ${BUILD_BL32}, $(eval $(call MAKE_BL,32,tos-fw)),\
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001077 $(eval $(call TOOL_ADD_IMG,bl32,--tos-fw)))
Juan Castillo11abdcd2014-10-21 11:30:42 +01001078endif
Sumit Gargeec52442019-11-14 16:33:45 +05301079endif
Juan Castillo11abdcd2014-10-21 11:30:42 +01001080
Juan Castilloa3487d12015-08-18 14:23:04 +01001081# Add the BL33 image if required by the platform
1082ifeq (${NEED_BL33},yes)
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001083$(eval $(call TOOL_ADD_IMG,bl33,--nt-fw))
Juan Castillo9c25a402015-01-13 12:21:04 +00001084endif
1085
Yatharth Kocharb1c2fe02015-10-14 15:27:24 +01001086ifeq (${NEED_BL2U},yes)
Masahiro Yamada9c5ca522018-01-26 11:42:01 +09001087$(if ${BL2U}, $(eval $(call TOOL_ADD_IMG,bl2u,--ap-fwu-cfg,FWU_)),\
Masahiro Yamadacd7711d2018-01-26 11:42:01 +09001088 $(eval $(call MAKE_BL,2u,ap-fwu-cfg,FWU_)))
Yatharth Kocharb1c2fe02015-10-14 15:27:24 +01001089endif
1090
Nishanth Menon4ac02ba2016-10-14 01:13:57 +00001091# Expand build macros for the different images
1092ifeq (${NEED_FDT},yes)
Soby Mathewab4181d2017-12-14 17:44:56 +00001093 $(eval $(call MAKE_DTBS,$(BUILD_PLAT)/fdts,$(FDT_SOURCES)))
Nishanth Menon4ac02ba2016-10-14 01:13:57 +00001094endif
1095
Manish Pandey3f90ad72020-01-14 11:52:05 +00001096# Add Secure Partition packages
1097ifeq (${NEED_SP_PKG},yes)
1098$(BUILD_PLAT)/sp_gen.mk: ${SP_MK_GEN} ${SP_LAYOUT_FILE} | ${BUILD_PLAT}
1099 ${Q}${PYTHON} "$<" "$@" $(filter-out $<,$^) $(BUILD_PLAT)
1100sp: $(SPTOOL) $(DTBS) $(BUILD_PLAT)/sp_gen.mk
1101 ${Q}$(SPTOOL) $(SPTOOL_ARGS)
1102 @${ECHO_BLANK_LINE}
1103 @echo "Built SP Images successfully"
1104 @${ECHO_BLANK_LINE}
1105endif
1106
Ian Spray36eaaf32014-01-30 17:25:28 +00001107locate-checkpatch:
1108ifndef CHECKPATCH
Etienne Carrieref5657572017-08-23 15:44:01 +02001109 $(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/scripts/checkpatch.pl")
Ian Spray36eaaf32014-01-30 17:25:28 +00001110else
1111ifeq (,$(wildcard ${CHECKPATCH}))
Etienne Carrieref5657572017-08-23 15:44:01 +02001112 $(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/scripts/checkpatch.pl")
Ian Spray36eaaf32014-01-30 17:25:28 +00001113endif
1114endif
1115
Achin Gupta4f6ad662013-10-25 09:08:21 +01001116clean:
Juan Castilloa3487d12015-08-18 14:23:04 +01001117 @echo " CLEAN"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001118 $(call SHELL_REMOVE_DIR,${BUILD_PLAT})
Juan Castilloa3487d12015-08-18 14:23:04 +01001119 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
1120 ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301121 ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${ENCTOOLPATH} clean
Roberto Vargase92111a2018-05-22 16:05:42 +01001122 ${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean
Achin Gupta4f6ad662013-10-25 09:08:21 +01001123
James Morrisseyeaaeece2013-11-01 13:56:59 +00001124realclean distclean:
Juan Castilloa3487d12015-08-18 14:23:04 +01001125 @echo " REALCLEAN"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001126 $(call SHELL_REMOVE_DIR,${BUILD_BASE})
1127 $(call SHELL_DELETE_ALL, ${CURDIR}/cscope.*)
Juan Castilloa3487d12015-08-18 14:23:04 +01001128 ${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +00001129 ${Q}${MAKE} --no-print-directory -C ${SPTOOLPATH} clean
Juan Castilloa3487d12015-08-18 14:23:04 +01001130 ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301131 ${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${ENCTOOLPATH} realclean
Roberto Vargase92111a2018-05-22 16:05:42 +01001132 ${Q}${MAKE} --no-print-directory -C ${ROMLIBPATH} clean
Achin Gupta4f6ad662013-10-25 09:08:21 +01001133
Ian Spray36eaaf32014-01-30 17:25:28 +00001134checkcodebase: locate-checkpatch
Juan Castilloa3487d12015-08-18 14:23:04 +01001135 @echo " CHECKING STYLE"
Dan Handley3a355712016-06-02 18:21:02 +01001136 @if test -d .git ; then \
Paul Beesleyadfab5b2019-03-07 16:42:31 +00001137 git ls-files | grep -E -v 'libfdt|libc|docs|\.rst' | \
Dan Handley3a355712016-06-02 18:21:02 +01001138 while read GIT_FILE ; \
1139 do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ; \
1140 done ; \
1141 else \
1142 find . -type f -not -iwholename "*.git*" \
1143 -not -iwholename "*build*" \
1144 -not -iwholename "*libfdt*" \
Roberto Vargas0f8f9852018-05-08 10:27:10 +01001145 -not -iwholename "*libc*" \
Dan Handley3a355712016-06-02 18:21:02 +01001146 -not -iwholename "*docs*" \
Paul Beesleyadfab5b2019-03-07 16:42:31 +00001147 -not -iwholename "*.rst" \
Dan Handley3a355712016-06-02 18:21:02 +01001148 -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ; \
1149 fi
Ian Spray36eaaf32014-01-30 17:25:28 +00001150
1151checkpatch: locate-checkpatch
Juan Castilloa3487d12015-08-18 14:23:04 +01001152 @echo " CHECKING STYLE"
Yann Gautier0c26a2a2019-03-08 15:44:00 +01001153 @if test -n "${CHECKPATCH_OPTS}"; then \
1154 echo " with ${CHECKPATCH_OPTS} option(s)"; \
1155 fi
Antonio Nino Diaz2cd4b582018-01-29 12:00:31 +00001156 ${Q}COMMON_COMMIT=$$(git merge-base HEAD ${BASE_COMMIT}); \
1157 for commit in `git rev-list $$COMMON_COMMIT..HEAD`; do \
1158 printf "\n[*] Checking style of '$$commit'\n\n"; \
1159 git log --format=email "$$commit~..$$commit" \
Yann Gautier0c26a2a2019-03-08 15:44:00 +01001160 -- ${CHECK_PATHS} | \
1161 ${CHECKPATCH} ${CHECKPATCH_OPTS} - || true; \
Antonio Nino Diaz2cd4b582018-01-29 12:00:31 +00001162 git diff --format=email "$$commit~..$$commit" \
Yann Gautier0c26a2a2019-03-08 15:44:00 +01001163 -- ${CHECK_PATHS} | \
1164 ${CHECKPATCH} ${CHECKPATCH_OPTS} - || true; \
Antonio Nino Diaz2cd4b582018-01-29 12:00:31 +00001165 done
Juan Castilloa3487d12015-08-18 14:23:04 +01001166
1167certtool: ${CRTTOOL}
Ian Spray36eaaf32014-01-30 17:25:28 +00001168
Juan Castillo11abdcd2014-10-21 11:30:42 +01001169.PHONY: ${CRTTOOL}
1170${CRTTOOL}:
Sandrine Bailleuxd4c1d442020-01-15 10:23:25 +01001171 ${Q}${MAKE} PLAT=${PLAT} USE_TBBR_DEFS=${USE_TBBR_DEFS} COT=${COT} --no-print-directory -C ${CRTTOOLPATH}
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001172 @${ECHO_BLANK_LINE}
Juan Castilloa3487d12015-08-18 14:23:04 +01001173 @echo "Built $@ successfully"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001174 @${ECHO_BLANK_LINE}
Jon Medhurst407a95c2014-02-12 15:54:48 +00001175
Juan Castillo11abdcd2014-10-21 11:30:42 +01001176ifneq (${GENERATE_COT},0)
Juan Castilloa3487d12015-08-18 14:23:04 +01001177certificates: ${CRT_DEPS} ${CRTTOOL}
1178 ${Q}${CRTTOOL} ${CRT_ARGS}
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001179 @${ECHO_BLANK_LINE}
Juan Castilloa3487d12015-08-18 14:23:04 +01001180 @echo "Built $@ successfully"
1181 @echo "Certificates can be found in ${BUILD_PLAT}"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001182 @${ECHO_BLANK_LINE}
Juan Castillo11abdcd2014-10-21 11:30:42 +01001183endif
1184
Juan Castilloa3487d12015-08-18 14:23:04 +01001185${BUILD_PLAT}/${FIP_NAME}: ${FIP_DEPS} ${FIPTOOL}
dp-arm4972ec52016-05-25 16:20:20 +01001186 ${Q}${FIPTOOL} create ${FIP_ARGS} $@
1187 ${Q}${FIPTOOL} info $@
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001188 @${ECHO_BLANK_LINE}
Juan Castilloa3487d12015-08-18 14:23:04 +01001189 @echo "Built $@ successfully"
Evan Lloyd26c6cb42015-12-02 18:33:55 +00001190 @${ECHO_BLANK_LINE}
Soby Mathewdbee7fc2014-09-08 17:51:01 +01001191
Yatharth Kochard1a93432015-10-12 12:33:47 +01001192ifneq (${GENERATE_COT},0)
1193fwu_certificates: ${FWU_CRT_DEPS} ${CRTTOOL}
1194 ${Q}${CRTTOOL} ${FWU_CRT_ARGS}
Evan Lloyd1c5f3602017-04-11 16:52:00 +01001195 @${ECHO_BLANK_LINE}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001196 @echo "Built $@ successfully"
1197 @echo "FWU certificates can be found in ${BUILD_PLAT}"
Evan Lloyd1c5f3602017-04-11 16:52:00 +01001198 @${ECHO_BLANK_LINE}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001199endif
1200
1201${BUILD_PLAT}/${FWU_FIP_NAME}: ${FWU_FIP_DEPS} ${FIPTOOL}
dp-arm4972ec52016-05-25 16:20:20 +01001202 ${Q}${FIPTOOL} create ${FWU_FIP_ARGS} $@
1203 ${Q}${FIPTOOL} info $@
Evan Lloyd1c5f3602017-04-11 16:52:00 +01001204 @${ECHO_BLANK_LINE}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001205 @echo "Built $@ successfully"
Evan Lloyd1c5f3602017-04-11 16:52:00 +01001206 @${ECHO_BLANK_LINE}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001207
Juan Castilloa3487d12015-08-18 14:23:04 +01001208fiptool: ${FIPTOOL}
1209fip: ${BUILD_PLAT}/${FIP_NAME}
Yatharth Kochard1a93432015-10-12 12:33:47 +01001210fwu_fip: ${BUILD_PLAT}/${FWU_FIP_NAME}
Harry Liebelf58ad362014-01-10 18:00:33 +00001211
Juan Castilloa3487d12015-08-18 14:23:04 +01001212.PHONY: ${FIPTOOL}
1213${FIPTOOL}:
dp-arm4972ec52016-05-25 16:20:20 +01001214 ${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" --no-print-directory -C ${FIPTOOLPATH}
Harry Liebelf58ad362014-01-10 18:00:33 +00001215
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +00001216sptool: ${SPTOOL}
1217.PHONY: ${SPTOOL}
1218${SPTOOL}:
1219 ${Q}${MAKE} CPPFLAGS="-DVERSION='\"${VERSION_STRING}\"'" --no-print-directory -C ${SPTOOLPATH}
1220
Roberto Vargase92111a2018-05-22 16:05:42 +01001221.PHONY: libraries
1222romlib.bin: libraries
John Tsichritzisf6ea99b2019-05-21 15:47:37 +01001223 ${Q}${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 +01001224
Louis Mayencourtcc3e8b82019-10-16 14:30:51 +01001225# Call print_memory_map tool
1226memmap: all
Louis Mayencourtc1c2bf72020-02-13 08:21:34 +00001227 ${Q}${PYTHON} ${PRINT_MEMORY_MAP} ${BUILD_PLAT} ${INVERTED_MEMMAP}
Louis Mayencourtcc3e8b82019-10-16 14:30:51 +01001228
Madhukar Pappireddy46adb1b2020-01-28 12:41:20 -06001229doc:
1230 @echo " BUILD DOCUMENTATION"
1231 ${Q}${MAKE} --no-print-directory -C ${DOCS_PATH} html
1232
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301233enctool: ${ENCTOOL}
1234
1235.PHONY: ${ENCTOOL}
1236${ENCTOOL}:
1237 ${Q}${MAKE} PLAT=${PLAT} BUILD_INFO=0 --no-print-directory -C ${ENCTOOLPATH}
1238 @${ECHO_BLANK_LINE}
1239 @echo "Built $@ successfully"
1240 @${ECHO_BLANK_LINE}
1241
Joakim Bech35fab8c2014-01-23 14:51:49 +01001242cscope:
1243 @echo " CSCOPE"
1244 ${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files
1245 ${Q}cscope -b -q -k
1246
Ryan Harkin72ee3312014-01-15 16:55:07 +00001247help:
John Tsichritzis0c4dded2019-05-21 15:57:31 +01001248 @echo "usage: ${MAKE} [PLAT=<platform>] [OPTIONS] [TARGET]"
Ryan Harkin72ee3312014-01-15 16:55:07 +00001249 @echo ""
1250 @echo "PLAT is used to specify which platform you wish to build."
Sandrine Bailleuxa08588a2014-03-21 13:16:35 +00001251 @echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}"
Ryan Harkin72ee3312014-01-15 16:55:07 +00001252 @echo ""
John Tsichritzis0c4dded2019-05-21 15:57:31 +01001253 @echo "platform = ${PLATFORM_LIST}"
1254 @echo ""
Sandrine Bailleuxcf8afbd2015-02-18 16:18:00 +00001255 @echo "Please refer to the User Guide for a list of all supported options."
1256 @echo "Note that the build system doesn't track dependencies for build "
1257 @echo "options. Therefore, if any of the build options are changed "
1258 @echo "from a previous build, a clean build must be performed."
1259 @echo ""
Ryan Harkin72ee3312014-01-15 16:55:07 +00001260 @echo "Supported Targets:"
Sandrine Bailleuxcf8afbd2015-02-18 16:18:00 +00001261 @echo " all Build all individual bootloader binaries"
Ian Spray36eaaf32014-01-30 17:25:28 +00001262 @echo " bl1 Build the BL1 binary"
Jeenu Viswambharan8aa559c2014-02-21 11:42:08 +00001263 @echo " bl2 Build the BL2 binary"
Yatharth Kocharb1c2fe02015-10-14 15:27:24 +01001264 @echo " bl2u Build the BL2U binary"
Juan Castillo7d199412015-12-14 09:35:25 +00001265 @echo " bl31 Build the BL31 binary"
Soby Mathewa1941252016-05-05 14:33:33 +01001266 @echo " bl32 Build the BL32 binary. If ARCH=aarch32, then "
1267 @echo " this builds secure payload specified by AARCH32_SP"
Juan Castilloa3487d12015-08-18 14:23:04 +01001268 @echo " certificates Build the certificates (requires 'GENERATE_COT=1')"
Sandrine Bailleuxcf8afbd2015-02-18 16:18:00 +00001269 @echo " fip Build the Firmware Image Package (FIP)"
Yatharth Kochard1a93432015-10-12 12:33:47 +01001270 @echo " fwu_fip Build the FWU Firmware Image Package (FIP)"
Ian Spray36eaaf32014-01-30 17:25:28 +00001271 @echo " checkcodebase Check the coding style of the entire source tree"
1272 @echo " checkpatch Check the coding style on changes in the current"
1273 @echo " branch against BASE_COMMIT (default origin/master)"
1274 @echo " clean Clean the build for the selected platform"
Harry Liebelf58ad362014-01-10 18:00:33 +00001275 @echo " cscope Generate cscope index"
Ian Spray36eaaf32014-01-30 17:25:28 +00001276 @echo " distclean Remove all build artifacts for all platforms"
Juan Castillo11abdcd2014-10-21 11:30:42 +01001277 @echo " certtool Build the Certificate generation tool"
Sumit Gargb6c4b3c2019-11-11 18:46:36 +05301278 @echo " enctool Build the Firmware encryption tool"
Andreas Färberec82cfb2016-10-10 05:18:49 +02001279 @echo " fiptool Build the Firmware Image Package (FIP) creation tool"
Manish Pandey3f90ad72020-01-14 11:52:05 +00001280 @echo " sp Build the Secure Partition Packages"
Antonio Nino Diaza830a4d2018-11-27 14:58:04 +00001281 @echo " sptool Build the Secure Partition Package creation tool"
Soby Mathewab4181d2017-12-14 17:44:56 +00001282 @echo " dtbs Build the Device Tree Blobs (if required for the platform)"
Louis Mayencourtcc3e8b82019-10-16 14:30:51 +01001283 @echo " memmap Print the memory map of the built binaries"
Madhukar Pappireddy46adb1b2020-01-28 12:41:20 -06001284 @echo " doc Build html based documentation using Sphinx tool"
Ryan Harkin72ee3312014-01-15 16:55:07 +00001285 @echo ""
Sandrine Bailleuxcf8afbd2015-02-18 16:18:00 +00001286 @echo "Note: most build targets require PLAT to be set to a specific platform."
Ryan Harkin72ee3312014-01-15 16:55:07 +00001287 @echo ""
1288 @echo "example: build all targets for the FVP platform:"
1289 @echo " CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all"