blob: e6abc182fed0d9ecc8e98bc0bfc7349f924900ff [file] [log] [blame]
#
# Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# Neither the name of ARM nor the names of its contributors may be used
# to endorse or promote products derived from this software without specific
# prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
# Trusted Firmware Version
#
VERSION_MAJOR := 1
VERSION_MINOR := 0
#
# Default values for build configurations
#
# Build verbosity
V := 0
# Debug build
DEBUG := 0
# Build architecture
ARCH := aarch64
# Build platform
DEFAULT_PLAT := fvp
PLAT := ${DEFAULT_PLAT}
# SPD choice
SPD := none
# Base commit to perform code check on
BASE_COMMIT := origin/master
# NS timer register save and restore
NS_TIMER_SWITCH := 0
# By default, Bl1 acts as the reset handler, not BL31
RESET_TO_BL31 := 0
# Include FP registers in cpu context
CTX_INCLUDE_FPREGS := 0
# Determine the version of ARM GIC architecture to use for interrupt management
# in EL3. The platform port can change this value if needed.
ARM_GIC_ARCH := 2
# Flag used to indicate if ASM_ASSERTION should be enabled for the build.
# This defaults to being present in DEBUG builds only.
ASM_ASSERTION := ${DEBUG}
# Build option to choose whether Trusted firmware uses Coherent memory or not.
USE_COHERENT_MEM := 1
# Default FIP file name
FIP_NAME := fip.bin
# Flags to generate the Chain of Trust
GENERATE_COT := 0
CREATE_KEYS := 1
# Flags to build TF with Trusted Boot support
TRUSTED_BOARD_BOOT := 0
# Checkpatch ignores
CHECK_IGNORE = --ignore COMPLEX_MACRO
CHECKPATCH_ARGS = --no-tree --no-signoff ${CHECK_IGNORE}
CHECKCODE_ARGS = --no-patch --no-tree --no-signoff ${CHECK_IGNORE}
ifeq (${V},0)
Q=@
CHECKCODE_ARGS += --no-summary --terse
else
Q=
endif
export Q
ifneq (${DEBUG}, 0)
BUILD_TYPE := debug
# Use LOG_LEVEL_INFO by default for debug builds
LOG_LEVEL := 40
else
BUILD_TYPE := release
# Use LOG_LEVEL_NOTICE by default for release builds
LOG_LEVEL := 20
endif
# Default build string (git branch and commit)
ifeq (${BUILD_STRING},)
BUILD_STRING := $(shell git log -n 1 --pretty=format:"%h")
endif
VERSION_STRING := v${VERSION_MAJOR}.${VERSION_MINOR}(${BUILD_TYPE}):${BUILD_STRING}
BL_COMMON_SOURCES := common/bl_common.c \
common/tf_printf.c \
common/aarch64/debug.S \
lib/aarch64/cache_helpers.S \
lib/aarch64/misc_helpers.S \
lib/aarch64/xlat_helpers.c \
lib/stdlib/std.c \
plat/common/aarch64/platform_helpers.S
BUILD_BASE := ./build
BUILD_PLAT := ${BUILD_BASE}/${PLAT}/${BUILD_TYPE}
PLATFORMS := $(shell ls -I common plat/)
SPDS := $(shell ls -I none services/spd)
HELP_PLATFORMS := $(shell echo ${PLATFORMS} | sed 's/ /|/g')
# Convenience function for adding build definitions
# $(eval $(call add_define,FOO)) will have:
# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise
define add_define
DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),)
endef
# Convenience function for verifying option has a boolean value
# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1
define assert_boolean
$(and $(patsubst 0,,$(value $(1))),$(patsubst 1,,$(value $(1))),$(error $(1) must be boolean))
endef
ifeq (${PLAT},)
$(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform.")
endif
ifeq ($(findstring ${PLAT},${PLATFORMS}),)
$(error "Error: Invalid platform. The following platforms are available: ${PLATFORMS}")
endif
all: msg_start
msg_start:
@echo "Building ${PLAT}"
include plat/${PLAT}/platform.mk
# Include the CPU specific operations makefile. By default all CPU errata
# workarounds and CPU specifc optimisations are disabled. This can be
# overridden by the platform.
include lib/cpus/cpu-ops.mk
ifdef BL1_SOURCES
NEED_BL1 := yes
include bl1/bl1.mk
endif
ifdef BL2_SOURCES
NEED_BL2 := yes
include bl2/bl2.mk
# Using the ARM Trusted Firmware BL2 implies that a BL3-3 image also need to be supplied for the FIP.
# This flag can be overridden by the platform.
NEED_BL33 ?= yes
endif
ifdef BL31_SOURCES
NEED_BL31 := yes
include bl31/bl31.mk
endif
# Include SPD Makefile if one has been specified
ifneq (${SPD},none)
# We expect to locate an spd.mk under the specified SPD directory
SPD_MAKE := $(shell m="services/spd/${SPD}/${SPD}.mk"; [ -f "$$m" ] && echo "$$m")
ifeq (${SPD_MAKE},)
$(error Error: No services/spd/${SPD}/${SPD}.mk located)
endif
$(info Including ${SPD_MAKE})
include ${SPD_MAKE}
# If there's BL3-2 companion for the chosen SPD, and the SPD wants to build the
# BL3-2 from source, we expect that the SPD's Makefile would set NEED_BL32
# variable to "yes". In case the BL3-2 is a binary which needs to be included in
# fip, then the NEED_BL32 needs to be set and BL3-2 would need to point to the bin.
endif
.PHONY: all msg_start clean realclean distclean cscope locate-checkpatch checkcodebase checkpatch fiptool fip certtool
.SUFFIXES:
INCLUDES += -Iinclude/bl31 \
-Iinclude/bl31/services \
-Iinclude/common \
-Iinclude/drivers \
-Iinclude/drivers/arm \
-Iinclude/drivers/io \
-Iinclude/lib \
-Iinclude/lib/aarch64 \
-Iinclude/lib/cpus/aarch64 \
-Iinclude/plat/common \
-Iinclude/stdlib \
-Iinclude/stdlib/sys \
${PLAT_INCLUDES} \
${SPD_INCLUDES}
# Process DEBUG flag
$(eval $(call assert_boolean,DEBUG))
$(eval $(call add_define,DEBUG))
ifeq (${DEBUG},0)
$(eval $(call add_define,NDEBUG))
else
CFLAGS += -g
ASFLAGS += -g -Wa,--gdwarf-2
endif
# Process NS_TIMER_SWITCH flag
$(eval $(call assert_boolean,NS_TIMER_SWITCH))
$(eval $(call add_define,NS_TIMER_SWITCH))
# Process RESET_TO_BL31 flag
$(eval $(call assert_boolean,RESET_TO_BL31))
$(eval $(call add_define,RESET_TO_BL31))
# Process CTX_INCLUDE_FPREGS flag
$(eval $(call assert_boolean,CTX_INCLUDE_FPREGS))
$(eval $(call add_define,CTX_INCLUDE_FPREGS))
# Process ARM_GIC_ARCH flag
$(eval $(call add_define,ARM_GIC_ARCH))
# Process ASM_ASSERTION flag
$(eval $(call assert_boolean,ASM_ASSERTION))
$(eval $(call add_define,ASM_ASSERTION))
# Process LOG_LEVEL flag
$(eval $(call add_define,LOG_LEVEL))
# Process USE_COHERENT_MEM flag
$(eval $(call assert_boolean,USE_COHERENT_MEM))
$(eval $(call add_define,USE_COHERENT_MEM))
# Process Generate CoT flags
$(eval $(call assert_boolean,GENERATE_COT))
$(eval $(call assert_boolean,CREATE_KEYS))
# Process TRUSTED_BOARD_BOOT flag
$(eval $(call assert_boolean,TRUSTED_BOARD_BOOT))
$(eval $(call add_define,TRUSTED_BOARD_BOOT))
ASFLAGS += -nostdinc -ffreestanding -Wa,--fatal-warnings \
-Werror -Wmissing-include-dirs \
-mgeneral-regs-only -D__ASSEMBLY__ \
${DEFINES} ${INCLUDES}
CFLAGS += -nostdinc -pedantic -ffreestanding -Wall \
-Werror -Wmissing-include-dirs \
-mgeneral-regs-only -std=c99 -c -Os \
${DEFINES} ${INCLUDES}
CFLAGS += -ffunction-sections -fdata-sections
LDFLAGS += --fatal-warnings -O1
LDFLAGS += --gc-sections
CC := ${CROSS_COMPILE}gcc
CPP := ${CROSS_COMPILE}cpp
AS := ${CROSS_COMPILE}gcc
AR := ${CROSS_COMPILE}ar
LD := ${CROSS_COMPILE}ld
OC := ${CROSS_COMPILE}objcopy
OD := ${CROSS_COMPILE}objdump
NM := ${CROSS_COMPILE}nm
PP := ${CROSS_COMPILE}gcc -E ${CFLAGS}
# Variables for use with Firmware Image Package
FIPTOOLPATH ?= tools/fip_create
FIPTOOL ?= ${FIPTOOLPATH}/fip_create
fiptool: ${FIPTOOL}
fip: ${BUILD_PLAT}/${FIP_NAME}
# Variables for use with Certificate Generation Tool
CRTTOOLPATH ?= tools/cert_create
CRTTOOL ?= ${CRTTOOLPATH}/cert_create
certtool: ${CRTTOOL}
# CoT generation tool default parameters
TRUSTED_KEY_CERT := ${BUILD_PLAT}/trusted_key.crt
# Pass the private keys to the CoT generation tool in the command line
# If CREATE_KEYS is set, the '-n' option will be added, indicating the tool to create new keys
ifneq (${GENERATE_COT},0)
$(eval CERTS := yes)
$(eval FIP_DEPS += certificates)
$(eval FIP_ARGS += --trusted-key-cert ${TRUSTED_KEY_CERT})
ifneq (${CREATE_KEYS},0)
$(eval CRT_ARGS += -n)
endif
$(eval CRT_ARGS += $(if ${ROT_KEY}, --rot-key ${ROT_KEY}))
$(eval CRT_ARGS += $(if ${TRUSTED_WORLD_KEY}, --trusted-world-key ${TRUSTED_WORLD_KEY}))
$(eval CRT_ARGS += $(if ${NON_TRUSTED_WORLD_KEY}, --non-trusted-world-key ${NON_TRUSTED_WORLD_KEY}))
$(eval CRT_ARGS += --trusted-key-cert ${TRUSTED_KEY_CERT})
endif
locate-checkpatch:
ifndef CHECKPATCH
$(error "Please set CHECKPATCH to point to the Linux checkpatch.pl file, eg: CHECKPATCH=../linux/script/checkpatch.pl")
else
ifeq (,$(wildcard ${CHECKPATCH}))
$(error "The file CHECKPATCH points to cannot be found, use eg: CHECKPATCH=../linux/script/checkpatch.pl")
endif
endif
clean:
@echo " CLEAN"
${Q}rm -rf ${BUILD_PLAT}
${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
realclean distclean:
@echo " REALCLEAN"
${Q}rm -rf ${BUILD_BASE}
${Q}rm -f ${CURDIR}/cscope.*
${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH} clean
${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH} clean
checkcodebase: locate-checkpatch
@echo " CHECKING STYLE"
@if test -d .git ; then \
git ls-files | grep -v stdlib | while read GIT_FILE ; do ${CHECKPATCH} ${CHECKCODE_ARGS} -f $$GIT_FILE ; done ; \
else \
find . -type f -not -iwholename "*.git*" -not -iwholename "*build*" -not -iwholename "*stdlib*" -exec ${CHECKPATCH} ${CHECKCODE_ARGS} -f {} \; ; \
fi
checkpatch: locate-checkpatch
@echo " CHECKING STYLE"
@git format-patch --stdout ${BASE_COMMIT} | ${CHECKPATCH} ${CHECKPATCH_ARGS} - || true
.PHONY: ${CRTTOOL}
${CRTTOOL}:
${Q}${MAKE} PLAT=${PLAT} --no-print-directory -C ${CRTTOOLPATH}
@echo
@echo "Built $@ successfully"
@echo
.PHONY: ${FIPTOOL}
${FIPTOOL}:
${Q}${MAKE} --no-print-directory -C ${FIPTOOLPATH}
define match_goals
$(strip $(foreach goal,$(1),$(filter $(goal),$(MAKECMDGOALS))))
endef
# List of rules that involve building things
BUILD_TARGETS := all bl1 bl2 bl31 bl32 fip
# Does the list of goals specified on the command line include a build target?
ifneq ($(call match_goals,${BUILD_TARGETS}),)
IS_ANYTHING_TO_BUILD := 1
endif
define MAKE_C
$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2))))
$(eval PREREQUISITES := $(patsubst %.o,%.d,$(OBJ)))
$(OBJ) : $(2)
@echo " CC $$<"
$$(Q)$$(CC) $$(CFLAGS) -DIMAGE_BL$(3) -c $$< -o $$@
$(PREREQUISITES) : $(2)
@echo " DEPS $$@"
@mkdir -p $(1)
$$(Q)$$(CC) $$(CFLAGS) -M -MT $(OBJ) -MF $$@ $$<
ifdef IS_ANYTHING_TO_BUILD
-include $(PREREQUISITES)
endif
endef
define MAKE_S
$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2))))
$(eval PREREQUISITES := $(patsubst %.o,%.d,$(OBJ)))
$(OBJ) : $(2)
@echo " AS $$<"
$$(Q)$$(AS) $$(ASFLAGS) -DIMAGE_BL$(3) -c $$< -o $$@
$(PREREQUISITES) : $(2)
@echo " DEPS $$@"
@mkdir -p $(1)
$$(Q)$$(AS) $$(ASFLAGS) -M -MT $(OBJ) -MF $$@ $$<
ifdef IS_ANYTHING_TO_BUILD
-include $(PREREQUISITES)
endif
endef
define MAKE_LD
$(eval PREREQUISITES := $(1).d)
$(1) : $(2)
@echo " PP $$<"
$$(Q)$$(AS) $$(ASFLAGS) -P -E -D__LINKER__ -o $$@ $$<
$(PREREQUISITES) : $(2)
@echo " DEPS $$@"
@mkdir -p $$(dir $$@)
$$(Q)$$(AS) $$(ASFLAGS) -M -MT $(1) -MF $$@ $$<
ifdef IS_ANYTHING_TO_BUILD
-include $(PREREQUISITES)
endif
endef
define MAKE_OBJS
$(eval C_OBJS := $(filter %.c,$(2)))
$(eval REMAIN := $(filter-out %.c,$(2)))
$(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3))))
$(eval S_OBJS := $(filter %.S,$(REMAIN)))
$(eval REMAIN := $(filter-out %.S,$(REMAIN)))
$(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3))))
$(and $(REMAIN),$(error Unexpected source files present: $(REMAIN)))
endef
# NOTE: The line continuation '\' is required in the next define otherwise we
# end up with a line-feed characer at the end of the last c filename.
# Also bare this issue in mind if extending the list of supported filetypes.
define SOURCES_TO_OBJS
$(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \
$(notdir $(patsubst %.S,%.o,$(filter %.S,$(1))))
endef
# MAKE_TOOL_ARGS macro defines the command line arguments for the FIP and CRT
# tools at each BL stage. Arguments:
# $(1) = BL stage (2, 30, 31, 32, 33)
# $(2) = Binary file
# $(3) = In FIP (false if empty)
# $(4) = Create certificates (false if empty)
# $(5) = Create key certificate (false if empty)
# $(6) = Private key (optional)
define MAKE_TOOL_ARGS
$(eval FIP_DEPS += $(if $3,$(2),))
$(eval FIP_ARGS += $(if $3,--bl$(1) $(2),))
$(eval FIP_ARGS += $(if $4,--bl$(1)-cert $(BUILD_PLAT)/bl$(1).crt))
$(eval FIP_ARGS += $(if $4,$(if $5,--bl$(1)-key-cert $(BUILD_PLAT)/bl$(1)_key.crt)))
$(eval CRT_DEPS += $(if $4,$(2),))
$(eval CRT_DEPS += $(if $4,$(if $6,$(6),)))
$(eval CRT_ARGS += $(if $4,--bl$(1) $(2)))
$(eval CRT_ARGS += $(if $4,$(if $6,--bl$(1)-key $(6))))
$(eval CRT_ARGS += $(if $4,--bl$(1)-cert $(BUILD_PLAT)/bl$(1).crt))
$(eval CRT_ARGS += $(if $4,$(if $5,--bl$(1)-key-cert $(BUILD_PLAT)/bl$(1)_key.crt)))
endef
# MAKE_BL macro defines the targets and options to build each BL image.
# Arguments:
# $(1) = BL stage (2, 30, 31, 32, 33)
# $(2) = In FIP (false if empty)
# $(3) = Create certificates (false if empty)
# $(4) = Create key certificate (false if empty)
# $(5) = Private key (optional)
define MAKE_BL
$(eval BUILD_DIR := ${BUILD_PLAT}/bl$(1))
$(eval SOURCES := $(BL$(1)_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES))
$(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES))))
$(eval LINKERFILE := $(BUILD_DIR)/bl$(1).ld)
$(eval MAPFILE := $(BUILD_DIR)/bl$(1).map)
$(eval ELF := $(BUILD_DIR)/bl$(1).elf)
$(eval DUMP := $(BUILD_DIR)/bl$(1).dump)
$(eval BIN := $(BUILD_PLAT)/bl$(1).bin)
$(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES),$(1)))
$(eval $(call MAKE_LD,$(LINKERFILE),$(BL$(1)_LINKERFILE)))
$(BUILD_DIR) :
$$(Q)mkdir -p "$$@"
$(ELF) : $(OBJS) $(LINKERFILE)
@echo " LD $$@"
@echo 'const char build_message[] = "Built : "__TIME__", "__DATE__; \
const char version_string[] = "${VERSION_STRING}";' | \
$$(CC) $$(CFLAGS) -xc - -o $(BUILD_DIR)/build_message.o
$$(Q)$$(LD) -o $$@ $$(LDFLAGS) -Map=$(MAPFILE) --script $(LINKERFILE) \
$(BUILD_DIR)/build_message.o $(OBJS)
$(DUMP) : $(ELF)
@echo " OD $$@"
$${Q}$${OD} -dx $$< > $$@
$(BIN) : $(ELF)
@echo " BIN $$@"
$$(Q)$$(OC) -O binary $$< $$@
@echo
@echo "Built $$@ successfully"
@echo
.PHONY : bl$(1)
bl$(1) : $(BUILD_DIR) $(BIN) $(DUMP)
all : bl$(1)
$(eval $(call MAKE_TOOL_ARGS,$(1),$(BIN),$(2),$(3),$(4),$(5)))
endef
ifeq (${NEED_BL1},yes)
$(eval $(call MAKE_BL,1))
endif
ifeq (${NEED_BL2},yes)
$(if ${BL2}, $(eval $(call MAKE_TOOL_ARGS,2,${BL2},in_fip,${CERTS})),\
$(eval $(call MAKE_BL,2,in_fip,${CERTS})))
endif
ifeq (${NEED_BL31},yes)
BL31_SOURCES += ${SPD_SOURCES}
$(if ${BL31}, $(eval $(call MAKE_TOOL_ARGS,31,${BL31},in_fip,${CERTS},${CERTS},${BL31_KEY})),\
$(eval $(call MAKE_BL,31,in_fip,${CERTS},${CERTS},${BL31_KEY})))
endif
ifeq (${NEED_BL32},yes)
$(if ${BL32}, $(eval $(call MAKE_TOOL_ARGS,32,${BL32},in_fip,${CERTS},${CERTS},${BL32_KEY})),\
$(eval $(call MAKE_BL,32,in_fip,${CERTS},${CERTS},${BL32_KEY})))
endif
ifeq (${NEED_BL30},yes)
$(if ${BL30}, $(eval $(call MAKE_TOOL_ARGS,30,${BL30},in_fip,${CERTS},${CERTS},${BL30_KEY})))
# If BL3-0 is needed by the platform then 'BL30' variable must be defined.
check_bl30:
$(if ${BL30},,$(error "To build a FIP for platform ${PLAT}, please set BL30 to point to the SCP firmware"))
else
# If BL3-0 is not needed by the platform but the user still specified the path
# to a BL3-0 image then warn him that it will be ignored.
check_bl30:
$(if ${BL30},$(warning "BL3-0 is not supported on platform ${PLAT}, it will just be ignored"),)
endif
ifeq (${NEED_BL33},yes)
$(if ${BL33}, $(eval $(call MAKE_TOOL_ARGS,33,${BL33},in_fip,${CERTS},${CERTS},${BL33_KEY})))
# If BL3-3 is needed by the platform then 'BL33' variable must be defined.
check_bl33:
$(if ${BL33},,$(error "To build a FIP, please set BL33 to point to the Normal World binary, eg: BL33=../uefi/FVP_AARCH64_EFI.fd"))
else
# If BL3-3 is not needed by the platform but the user still specified the path
# to a BL3-3 image then warn him that it will be ignored.
check_bl33:
$(if ${BL33},$(warning "BL3-3 is not supported on platform ${PLAT}, it will just be ignored"),)
endif
# Add the dependency on the certificates
ifneq (${GENERATE_COT},0)
all: certificates
endif
certificates: ${CRT_DEPS} ${CRTTOOL} check_bl30 check_bl33
${Q}${CRTTOOL} ${CRT_ARGS}
@echo
@echo "Built $@ successfully"
@echo "Certificates can be found in ${BUILD_PLAT}"
@echo
${BUILD_PLAT}/${FIP_NAME}: ${FIP_DEPS} ${FIPTOOL} check_bl30 check_bl33
${Q}${FIPTOOL} --dump \
${FIP_ARGS} \
$@
@echo
@echo "Built $@ successfully"
@echo
cscope:
@echo " CSCOPE"
${Q}find ${CURDIR} -name "*.[chsS]" > cscope.files
${Q}cscope -b -q -k
help:
@echo "usage: ${MAKE} PLAT=<${HELP_PLATFORMS}> <all|bl1|bl2|bl31|distclean|clean|checkcodebase|checkpatch>"
@echo ""
@echo "PLAT is used to specify which platform you wish to build."
@echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}"
@echo ""
@echo "Supported Targets:"
@echo " all Build the BL1, BL2 and BL31 binaries"
@echo " bl1 Build the BL1 binary"
@echo " bl2 Build the BL2 binary"
@echo " bl31 Build the BL31 binary"
@echo " checkcodebase Check the coding style of the entire source tree"
@echo " checkpatch Check the coding style on changes in the current"
@echo " branch against BASE_COMMIT (default origin/master)"
@echo " clean Clean the build for the selected platform"
@echo " cscope Generate cscope index"
@echo " distclean Remove all build artifacts for all platforms"
@echo " certtool Build the Certificate generation tool"
@echo " fiptool Build the Firmware Image Package(FIP) creation tool"
@echo ""
@echo "note: most build targets require PLAT to be set to a specific platform."
@echo ""
@echo "example: build all targets for the FVP platform:"
@echo " CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all"