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d5e49bc23d
When building EC image, in the majority of cases the RW and RO images
are built from exactly the same set of object files, and the RO set of
objects is used as a template to derive the RW set of objects.
This is not necessarily correct in all cases, let's just create an
abstract set of object files and use it to derive the sets for RO, RW
and sharedlib as appropriate.
BRANCH=None
BUG=chrome-os-partner:43025
TEST=tested as follows:
- changed the Makefile to sort all object files in a single list
(instead of sorting them by directory, with the directory list
unchanged). Built all targets, saved all .smap files. Then applied
this change and again built all targets. Compare all smap files,
there were no differences.
- modified board/samus/board.h to trigger building sharedlib
objects, verified that build/samus/sharedlib built fine.
Change-Id: Ie563aca62028cae9e16f067ba20b5e2930355cf5
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/310389
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
200 lines
6.6 KiB
Makefile
200 lines
6.6 KiB
Makefile
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Embedded Controller firmware build system
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#
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# If we came here via a symlink we restart make and deduce the correct BOARD
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# value from the current directory.
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SYMLINK := $(shell readlink $(lastword $(MAKEFILE_LIST)))
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ifneq (,$(SYMLINK))
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.PHONY: restart
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restart: .DEFAULT
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@true
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.DEFAULT:
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@$(MAKE) -C $(dir $(SYMLINK)) \
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--no-print-directory \
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$(MAKECMDGOALS) \
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BOARD=$(notdir $(shell pwd))
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else
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BOARD ?= bds
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# Directory where the board is configured (includes /$(BOARD) at the end)
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BDIR:=$(wildcard board/$(BOARD) private*/board/$(BOARD))
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# There can be only one <insert exploding windows here>
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ifeq (,$(BDIR))
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$(error unable to locate BOARD $(BOARD))
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endif
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ifneq (1,$(words $(BDIR)))
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$(error multiple definitions for BOARD $(BOARD): $(BDIR))
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endif
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PROJECT?=ec
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# Output directory for build objects
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out?=build/$(BOARD)
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# File containing configuration information
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config=$(out)/.config
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# If no key file is provided, use the default dev key
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PEM ?= $(BDIR)/dev_key.pem
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include Makefile.toolchain
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# Define the traditional first target. The dependencies of this are near the
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# bottom as they can be altered by chip and board files.
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.PHONY: all
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all:
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# The board makefile sets $CHIP and the chip makefile sets $CORE.
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# Include those now, since they must be defined for _flag_cfg below.
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include $(BDIR)/build.mk
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include chip/$(CHIP)/build.mk
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# Create uppercase config variants, to avoid mixed case constants.
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# Also translate '-' to '_', so 'cortex-m' turns into 'CORTEX_M'. This must
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# be done before evaluating config.h.
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uppercase = $(shell echo $(1) | tr '[:lower:]-' '[:upper:]_')
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UC_BOARD:=$(call uppercase,$(BOARD))
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UC_CHIP:=$(call uppercase,$(CHIP))
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UC_CHIP_FAMILY:=$(call uppercase,$(CHIP_FAMILY))
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UC_CHIP_VARIANT:=$(call uppercase,$(CHIP_VARIANT))
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UC_CORE:=$(call uppercase,$(CORE))
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UC_PROJECT:=$(call uppercase,$(PROJECT))
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# Transform the configuration into make variables. This must be done after
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# the board/project/chip/core variables are defined, since some of the configs
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# are dependent on particular configurations.
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includes=include core/$(CORE)/include $(dirs) $(out) test
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ifeq "$(TEST_BUILD)" "y"
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_tsk_lst_file:=ec.tasklist
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_tsk_lst:=$(shell echo "CONFIG_TASK_LIST CONFIG_TEST_TASK_LIST" | \
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$(CPP) -P -I$(BDIR) -Itest \
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-D"TASK_NOTEST(n, r, d, s)=" -D"TASK_ALWAYS(n, r, d, s)=n" \
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-D"TASK_TEST(n, r, d, s)=n" -imacros $(_tsk_lst_file) \
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-imacros $(PROJECT).tasklist)
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else
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_tsk_lst_file:=$(PROJECT).tasklist
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_tsk_lst:=$(shell echo "CONFIG_TASK_LIST" | $(CPP) -P \
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-I$(BDIR) -D"TASK_NOTEST(n, r, d, s)=n" \
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-D"TASK_ALWAYS(n, r, d, s)=n" -imacros $(_tsk_lst_file))
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endif
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_tsk_cfg:=$(foreach t,$(_tsk_lst) ,HAS_TASK_$(t))
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CPPFLAGS+=$(foreach t,$(_tsk_cfg),-D$(t))
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_flag_cfg:=$(shell $(CPP) $(CPPFLAGS) -P -dM -Ichip/$(CHIP) -I$(BDIR) \
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include/config.h | grep -o "\#define CONFIG_[A-Z0-9_]*" | \
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cut -c9- | sort)
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$(foreach c,$(_tsk_cfg) $(_flag_cfg),$(eval $(c)=y))
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ifneq "$(CONFIG_COMMON_RUNTIME)" "y"
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_irq_list:=$(shell $(CPP) $(CPPFLAGS) -P -Ichip/$(CHIP) -I$(BDIR) \
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-D"ENABLE_IRQ(x)=EN_IRQ x" -imacros chip/$(CHIP)/registers.h \
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$(BDIR)/ec.irqlist | grep "EN_IRQ .*" | cut -c8-)
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CPPFLAGS+=$(foreach irq,$(_irq_list),\
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-D"irq_$(irq)_handler_optional=irq_$(irq)_handler")
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endif
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# Compute RW firmware size and offset
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_rw_off_str:=$(shell echo "CONFIG_RW_MEM_OFF" | $(CPP) $(CPPFLAGS) -P \
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-Ichip/$(CHIP) -I$(BDIR) -imacros include/config.h)
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_rw_off:=$(shell echo "$$(($(_rw_off_str)))")
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_rw_size_str:=$(shell echo "CONFIG_RW_SIZE" | $(CPP) $(CPPFLAGS) -P \
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-Ichip/$(CHIP) -I$(BDIR) -imacros include/config.h)
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_rw_size:=$(shell echo "$$(($(_rw_size_str)))")
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_program_memory_base_str:=$(shell echo "CONFIG_PROGRAM_MEMORY_BASE" | \
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$(CPP) $(CPPFLAGS) -P \
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-Ichip/$(CHIP) -I$(BDIR) -imacros include/config.h)
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_program_memory_base=$(shell echo "$$(($(_program_memory_base_str)))")
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$(eval BOARD_$(UC_BOARD)=y)
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$(eval CHIP_$(UC_CHIP)=y)
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$(eval CHIP_VARIANT_$(UC_CHIP_VARIANT)=y)
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$(eval CHIP_FAMILY_$(UC_CHIP_FAMILY)=y)
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# Private subdirectories may call this from their build.mk
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objs_from_dir=$(foreach obj, $($(2)-y), $(1)/$(obj))
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# Get build configuration from sub-directories
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# Note that this re-includes the board and chip makefiles
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include $(BDIR)/build.mk
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include chip/$(CHIP)/build.mk
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include core/$(CORE)/build.mk
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include common/build.mk
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include driver/build.mk
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include power/build.mk
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-include private/build.mk
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-include private-cr51/build.mk
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include test/build.mk
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include util/build.mk
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include util/lock/build.mk
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include util/signer/build.mk
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includes+=$(includes-y)
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# Get all sources to build
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all-obj-y+=$(call objs_from_dir,core/$(CORE),core)
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all-obj-y+=$(call objs_from_dir,chip/$(CHIP),chip)
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all-obj-y+=$(call objs_from_dir,$(BDIR),board)
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all-obj-y+=$(call objs_from_dir,private,private)
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all-obj-y+=$(call objs_from_dir,private-cr51,private-cr51)
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all-obj-y+=$(call objs_from_dir,common,common)
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all-obj-y+=$(call objs_from_dir,driver,driver)
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all-obj-y+=$(call objs_from_dir,power,power)
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all-obj-y+=$(call objs_from_dir,test,$(PROJECT))
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dirs=core/$(CORE) chip/$(CHIP) $(BDIR) common power test
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dirs+= private private-cr51
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dirs+=$(shell find driver -type d)
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common_dirs=util
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ro-objs := $(sort $(foreach obj, $(all-obj-y), $(out)/RO/$(obj)))
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rw-objs := $(sort $(foreach obj, $(all-obj-y), $(out)/RW/$(obj)))
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# Don't include the shared objects in the RO/RW image if we're enabling
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# the shared objects library.
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ifeq ($(CONFIG_SHAREDLIB),y)
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ro-objs := $(filter-out %_sharedlib.o, $(ro-objs))
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endif
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ro-deps := $(ro-objs:%.o=%.o.d)
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rw-deps := $(rw-objs:%.o=%.o.d)
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deps := $(ro-deps) $(rw-deps)
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.PHONY: ro rw
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$(config): $(out)/$(PROJECT).bin
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@printf '%s=y\n' $(_tsk_cfg) $(_flag_cfg) > $@
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def_all_deps:=utils ro rw $(config) $(PROJECT_EXTRA)
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all_deps?=$(def_all_deps)
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all: $(all_deps)
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ro: override BLD:=RO
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ro: $(libsharedobjs_elf-y) $(out)/RO/$(PROJECT).RO.flat
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rw: override BLD:=RW
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rw: $(libsharedobjs_elf-y) $(out)/RW/$(PROJECT).RW.flat
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# Shared objects library
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SHOBJLIB := libsharedobjs
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sharedlib-objs := $(filter %_sharedlib.o, $(all-obj-y))
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sharedlib-objs := $(foreach obj, $(sharedlib-objs), $(out)/$(SHOBJLIB)/$(obj))
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sharedlib-deps := $(sharedlib-objs:%.o=%.o.d)
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deps += $(sharedlib-deps)
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def_libsharedobjs_deps := $(sharedlib-objs)
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libsharedobjs_deps ?= $(def_libsharedobjs_deps)
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libsharedobjs-$(CONFIG_SHAREDLIB) := $(out)/$(SHOBJLIB)/$(SHOBJLIB).flat
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libsharedobjs_elf-$(CONFIG_SHAREDLIB) := \
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$(libsharedobjs-$(CONFIG_SHAREDLIB):%.flat=%.elf)
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libsharedobjs: $(libsharedobjs-y)
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include Makefile.rules
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export CROSS_COMPILE CFLAGS CC CPP LD NM AR OBJCOPY OBJDUMP
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endif # SYMLINK
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