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https://github.com/ARM-software/arm-trusted-firmware.git
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403973c95d
The user can provide additional CFLAGS to use when building TF. However, these custom CFLAGS are currently prepended to the standard CFLAGS that are hardcoded in the TF build system. This is an issue because when providing conflicting compiler flags (e.g. different optimisations levels like -O1 and -O0), the last one on the command line usually takes precedence. This means that the user flags get overriden. To address this problem, this patch separates the TF CFLAGS from the user CFLAGS. The former are now stored in the TF_CFLAGS make variable, whereas the CFLAGS make variable is untouched and reserved for the user. The order of the 2 sets of flags is enforced when invoking the compiler. Fixes ARM-Software/tf-issues#350 Change-Id: Ib189f44555b885f1dffbec6015092f381600e560
378 lines
13 KiB
Makefile
378 lines
13 KiB
Makefile
#
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# Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# Neither the name of ARM nor the names of its contributors may be used
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# to endorse or promote products derived from this software without specific
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# prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# Report an error if the eval make function is not available.
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$(eval eval_available := T)
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ifneq (${eval_available},T)
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$(error This makefile only works with a Make program that supports $$(eval))
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endif
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# Some utility macros for manipulating awkward (whitespace) characters.
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blank :=
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space :=${blank} ${blank}
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# A user defined function to recursively search for a filename below a directory
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# $1 is the directory root of the recursive search (blank for current directory).
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# $2 is the file name to search for.
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define rwildcard
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$(strip $(foreach d,$(wildcard ${1}*),$(call rwildcard,${d}/,${2}) $(filter $(subst *,%,%${2}),${d})))
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endef
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# This table is used in converting lower case to upper case.
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uppercase_table:=a,A b,B c,C d,D e,E f,F g,G h,H i,I j,J k,K l,L m,M n,N o,O p,P q,Q r,R s,S t,T u,U v,V w,W x,X y,Y z,Z
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# Internal macro used for converting lower case to upper case.
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# $(1) = upper case table
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# $(2) = String to convert
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define uppercase_internal
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$(if $(1),$$(subst $(firstword $(1)),$(call uppercase_internal,$(wordlist 2,$(words $(1)),$(1)),$(2))),$(2))
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endef
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# A macro for converting a string to upper case
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# $(1) = String to convert
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define uppercase
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$(eval uppercase_result:=$(call uppercase_internal,$(uppercase_table),$(1)))$(uppercase_result)
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endef
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# Convenience function for adding build definitions
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# $(eval $(call add_define,FOO)) will have:
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# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise
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define add_define
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DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),)
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endef
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# Convenience function for verifying option has a boolean value
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# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1
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define assert_boolean
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$(and $(patsubst 0,,$(value $(1))),$(patsubst 1,,$(value $(1))),$(error $(1) must be boolean))
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endef
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# IMG_LINKERFILE defines the linker script corresponding to a BL stage
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# $(1) = BL stage (2, 30, 31, 32, 33)
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define IMG_LINKERFILE
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${BUILD_DIR}/bl$(1).ld
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endef
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# IMG_MAPFILE defines the output file describing the memory map corresponding
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# to a BL stage
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# $(1) = BL stage (2, 30, 31, 32, 33)
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define IMG_MAPFILE
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${BUILD_DIR}/bl$(1).map
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endef
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# IMG_ELF defines the elf file corresponding to a BL stage
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# $(1) = BL stage (2, 30, 31, 32, 33)
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define IMG_ELF
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${BUILD_DIR}/bl$(1).elf
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endef
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# IMG_DUMP defines the symbols dump file corresponding to a BL stage
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# $(1) = BL stage (2, 30, 31, 32, 33)
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define IMG_DUMP
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${BUILD_DIR}/bl$(1).dump
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endef
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# IMG_BIN defines the default image file corresponding to a BL stage
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# $(1) = BL stage (2, 30, 31, 32, 33)
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define IMG_BIN
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${BUILD_PLAT}/bl$(1).bin
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endef
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# FIP_ADD_PAYLOAD appends the command line arguments required by the FIP tool
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# to package a new payload. Optionally, it adds the dependency on this payload
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# $(1) = payload filename (i.e. bl31.bin)
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# $(2) = command line option for the specified payload (i.e. --bl31)
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# $(3) = fip target dependency (optional) (i.e. bl31)
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define FIP_ADD_PAYLOAD
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$(eval FIP_ARGS += $(2) $(1))
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$(eval $(if $(3),FIP_DEPS += $(3)))
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endef
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# CERT_ADD_CMD_OPT adds a new command line option to the cert_create invocation
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# $(1) = parameter filename
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# $(2) = cert_create command line option for the specified parameter
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# $(3) = input parameter (false if empty)
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define CERT_ADD_CMD_OPT
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$(eval $(if $(3),CRT_DEPS += $(1)))
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$(eval CRT_ARGS += $(2) $(1))
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endef
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# FIP_ADD_IMG allows the platform to specify an image to be packed in the FIP
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# using a build option. It also adds a dependency on the image file, aborting
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# the build if the file does not exist.
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# $(1) = build option to specify the image filename (SCP_BL2, BL33, etc)
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# $(2) = command line option for the fip_create tool (scp_bl2, bl33, etc)
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# Example:
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# $(eval $(call FIP_ADD_IMG,BL33,--bl33))
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define FIP_ADD_IMG
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CRT_DEPS += check_$(1)
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FIP_DEPS += check_$(1)
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$(call FIP_ADD_PAYLOAD,$(value $(1)),$(2))
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check_$(1):
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$$(if $(value $(1)),,$$(error "Platform '${PLAT}' requires $(1). Please set $(1) to point to the right file"))
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endef
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# FWU_FIP_ADD_PAYLOAD appends the command line arguments required by the FIP tool
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# to package a new FWU payload. Optionally, it adds the dependency on this payload
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# $(1) = payload filename (e.g. ns_bl2u.bin)
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# $(2) = command line option for the specified payload (e.g. --fwu)
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# $(3) = fip target dependency (optional) (e.g. ns_bl2u)
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define FWU_FIP_ADD_PAYLOAD
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$(eval $(if $(3),FWU_FIP_DEPS += $(3)))
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$(eval FWU_FIP_ARGS += $(2) $(1))
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endef
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# FWU_CERT_ADD_CMD_OPT adds a new command line option to the cert_create invocation
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# $(1) = parameter filename
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# $(2) = cert_create command line option for the specified parameter
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# $(3) = input parameter (false if empty)
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define FWU_CERT_ADD_CMD_OPT
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$(eval $(if $(3),FWU_CRT_DEPS += $(1)))
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$(eval FWU_CRT_ARGS += $(2) $(1))
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endef
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# FWU_FIP_ADD_IMG allows the platform to pack a binary image in the FWU FIP
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# $(1) build option to specify the image filename (BL2U, NS_BL2U, etc)
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# $(2) command line option for the fip_create tool (bl2u, ns_bl2u, etc)
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# Example:
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# $(eval $(call FWU_FIP_ADD_IMG,BL2U,--bl2u))
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define FWU_FIP_ADD_IMG
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FWU_CRT_DEPS += check_$(1)
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FWU_FIP_DEPS += check_$(1)
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$(call FWU_FIP_ADD_PAYLOAD,$(value $(1)),$(2))
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check_$(1):
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$$(if $(value $(1)),,$$(error "Platform '${PLAT}' requires $(1). Please set $(1) to point to the right file"))
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endef
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################################################################################
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# Auxiliary macros to build TF images from sources
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################################################################################
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# If no goal is specified in the command line, .DEFAULT_GOAL is used.
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# .DEFAULT_GOAL is defined in the main Makefile before including this file.
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ifeq ($(MAKECMDGOALS),)
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MAKECMDGOALS := $(.DEFAULT_GOAL)
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endif
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define match_goals
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$(strip $(foreach goal,$(1),$(filter $(goal),$(MAKECMDGOALS))))
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endef
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# List of rules that involve building things
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BUILD_TARGETS := all bl1 bl2 bl2u bl31 bl32 certificates fip
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# Does the list of goals specified on the command line include a build target?
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ifneq ($(call match_goals,${BUILD_TARGETS}),)
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IS_ANYTHING_TO_BUILD := 1
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endif
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# MAKE_C builds a C source file and generates the dependency file
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# $(1) = output directory
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# $(2) = source file (%.c)
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# $(3) = BL stage (2, 2u, 30, 31, 32, 33)
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define MAKE_C
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$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2))))
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$(eval PREREQUISITES := $(patsubst %.o,%.d,$(OBJ)))
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$(eval IMAGE := IMAGE_BL$(call uppercase,$(3)))
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$(OBJ): $(2)
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@echo " CC $$<"
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$$(Q)$$(CC) $$(TF_CFLAGS) $$(CFLAGS) -D$(IMAGE) -c $$< -o $$@
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$(PREREQUISITES): $(2) | bl$(3)_dirs
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@echo " DEPS $$@"
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$$(Q)$$(CC) $$(TF_CFLAGS) $$(CFLAGS) -M -MT $(OBJ) -MF $$@ $$<
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ifdef IS_ANYTHING_TO_BUILD
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-include $(PREREQUISITES)
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endif
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endef
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# MAKE_S builds an assembly source file and generates the dependency file
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# $(1) = output directory
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# $(2) = assembly file (%.S)
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# $(3) = BL stage (2, 2u, 30, 31, 32, 33)
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define MAKE_S
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$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2))))
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$(eval PREREQUISITES := $(patsubst %.o,%.d,$(OBJ)))
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$(eval IMAGE := IMAGE_BL$(call uppercase,$(3)))
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$(OBJ): $(2)
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@echo " AS $$<"
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$$(Q)$$(AS) $$(ASFLAGS) -D$(IMAGE) -c $$< -o $$@
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$(PREREQUISITES): $(2) | bl$(3)_dirs
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@echo " DEPS $$@"
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$$(Q)$$(AS) $$(ASFLAGS) -M -MT $(OBJ) -MF $$@ $$<
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ifdef IS_ANYTHING_TO_BUILD
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-include $(PREREQUISITES)
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endif
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endef
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# MAKE_LD generate the linker script using the C preprocessor
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# $(1) = output linker script
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# $(2) = input template
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define MAKE_LD
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$(eval PREREQUISITES := $(1).d)
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$(1): $(2)
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@echo " PP $$<"
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$$(Q)$$(AS) $$(ASFLAGS) -P -E -D__LINKER__ -o $$@ $$<
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$(PREREQUISITES): $(2) | $(dir ${1})
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@echo " DEPS $$@"
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$$(Q)$$(AS) $$(ASFLAGS) -M -MT $(1) -MF $$@ $$<
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ifdef IS_ANYTHING_TO_BUILD
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-include $(PREREQUISITES)
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endif
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endef
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# MAKE_OBJS builds both C and assembly source files
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# $(1) = output directory
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# $(2) = list of source files (both C and assembly)
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# $(3) = BL stage (2, 30, 31, 32, 33)
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define MAKE_OBJS
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$(eval C_OBJS := $(filter %.c,$(2)))
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$(eval REMAIN := $(filter-out %.c,$(2)))
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$(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3))))
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$(eval S_OBJS := $(filter %.S,$(REMAIN)))
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$(eval REMAIN := $(filter-out %.S,$(REMAIN)))
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$(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3))))
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$(and $(REMAIN),$(error Unexpected source files present: $(REMAIN)))
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endef
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# NOTE: The line continuation '\' is required in the next define otherwise we
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# end up with a line-feed characer at the end of the last c filename.
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# Also bear this issue in mind if extending the list of supported filetypes.
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define SOURCES_TO_OBJS
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$(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \
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$(notdir $(patsubst %.S,%.o,$(filter %.S,$(1))))
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endef
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# MAKE_TOOL_ARGS macro defines the command line arguments for the FIP tool for
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# each BL image. Arguments:
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# $(1) = BL stage (2, 30, 31, 32, 33)
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# $(2) = Binary file
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# $(3) = FIP command line option (if empty, image will not be included in the FIP)
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define MAKE_TOOL_ARGS
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$(if $(3),$(eval $(call FIP_ADD_PAYLOAD,$(2),--$(3),bl$(1))))
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endef
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# Allow overriding the timestamp, for example for reproducible builds, or to
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# synchronize timestamps across multiple projects.
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# This must be set to a C string (including quotes where applicable).
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BUILD_MESSAGE_TIMESTAMP ?= __TIME__", "__DATE__
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# MAKE_BL macro defines the targets and options to build each BL image.
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# Arguments:
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# $(1) = BL stage (2, 2u, 30, 31, 32, 33)
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# $(2) = FIP command line option (if empty, image will not be included in the FIP)
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define MAKE_BL
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$(eval BUILD_DIR := ${BUILD_PLAT}/bl$(1))
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$(eval BL_SOURCES := $(BL$(call uppercase,$(1))_SOURCES))
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$(eval SOURCES := $(BL_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES))
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$(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES))))
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$(eval LINKERFILE := $(call IMG_LINKERFILE,$(1)))
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$(eval MAPFILE := $(call IMG_MAPFILE,$(1)))
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$(eval ELF := $(call IMG_ELF,$(1)))
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$(eval DUMP := $(call IMG_DUMP,$(1)))
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$(eval BIN := $(call IMG_BIN,$(1)))
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$(eval BL_LINKERFILE := $(BL$(call uppercase,$(1))_LINKERFILE))
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# We use sort only to get a list of unique object directory names.
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# ordering is not relevant but sort removes duplicates.
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$(eval TEMP_OBJ_DIRS := $(sort $(BUILD_DIR)/ $(dir ${OBJS})))
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# The $(dir ) function leaves a trailing / on the directory names
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# We append a . then strip /. from each, to remove the trailing / characters
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# This gives names suitable for use as make rule targets.
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$(eval OBJ_DIRS := $(subst /.,,$(addsuffix .,$(TEMP_OBJ_DIRS))))
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# Create generators for object directory structure
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$(eval $(foreach objd,${OBJ_DIRS},$(call MAKE_PREREQ_DIR,${objd},)))
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.PHONY : bl${1}_dirs
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# We use order-only prerequisites to ensure that directories are created,
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# but do not cause re-builds every time a file is written.
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bl${1}_dirs: | ${OBJ_DIRS}
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$(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES),$(1)))
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$(eval $(call MAKE_LD,$(LINKERFILE),$(BL_LINKERFILE)))
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$(ELF): $(OBJS) $(LINKERFILE) | bl$(1)_dirs
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@echo " LD $$@"
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ifdef MAKE_BUILD_STRINGS
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$(call MAKE_BUILD_STRINGS, $(BUILD_DIR)/build_message.o)
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else
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@echo 'const char build_message[] = "Built : "$(BUILD_MESSAGE_TIMESTAMP); \
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const char version_string[] = "${VERSION_STRING}";' | \
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$$(CC) $$(TF_CFLAGS) $$(CFLAGS) -xc - -o $(BUILD_DIR)/build_message.o
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endif
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$$(Q)$$(LD) -o $$@ $$(LDFLAGS) -Map=$(MAPFILE) --script $(LINKERFILE) \
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$(BUILD_DIR)/build_message.o $(OBJS)
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$(DUMP): $(ELF)
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@echo " OD $$@"
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$${Q}$${OD} -dx $$< > $$@
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$(BIN): $(ELF)
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@echo " BIN $$@"
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$$(Q)$$(OC) -O binary $$< $$@
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@echo
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@echo "Built $$@ successfully"
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@echo
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.PHONY: bl$(1)
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bl$(1): $(BIN) $(DUMP)
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all: bl$(1)
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$(eval $(call MAKE_TOOL_ARGS,$(1),$(BIN),$(2)))
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endef
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