| # Copyright (c) 2011 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| # |
| # Embedded Controller firmware build system |
| # |
| |
| # If we came here via a symlink we restart make and deduce the correct BOARD |
| # value from the current directory. |
| SYMLINK := $(shell readlink $(lastword $(MAKEFILE_LIST))) |
| |
| ifneq (,$(SYMLINK)) |
| |
| .PHONY: restart |
| restart: .DEFAULT |
| @true |
| |
| .DEFAULT: |
| @$(MAKE) -C $(dir $(SYMLINK)) \ |
| --no-print-directory \ |
| $(MAKECMDGOALS) \ |
| BOARD=$(notdir $(shell pwd)) |
| else |
| |
| BOARD ?= bds |
| |
| # Directory where the board is configured (includes /$(BOARD) at the end) |
| BDIR:=$(wildcard board/$(BOARD) private*/board/$(BOARD)) |
| # There can be only one <insert exploding windows here> |
| ifeq (,$(BDIR)) |
| $(error unable to locate BOARD $(BOARD)) |
| endif |
| ifneq (1,$(words $(BDIR))) |
| $(error multiple definitions for BOARD $(BOARD): $(BDIR)) |
| endif |
| |
| PROJECT?=ec |
| |
| # Output directory for build objects |
| out?=build/$(BOARD) |
| |
| # File containing configuration information |
| config=$(out)/.config |
| |
| # If no key file is provided, use the default dev key |
| PEM ?= $(BDIR)/dev_key.pem |
| |
| include Makefile.toolchain |
| |
| # Define the traditional first target. The dependencies of this are near the |
| # bottom as they can be altered by chip and board files. |
| .PHONY: all |
| all: |
| |
| # The board makefile sets $CHIP and the chip makefile sets $CORE. |
| # Include those now, since they must be defined for _flag_cfg below. |
| include $(BDIR)/build.mk |
| include chip/$(CHIP)/build.mk |
| |
| # Create uppercase config variants, to avoid mixed case constants. |
| # Also translate '-' to '_', so 'cortex-m' turns into 'CORTEX_M'. This must |
| # be done before evaluating config.h. |
| uppercase = $(shell echo $(1) | tr '[:lower:]-' '[:upper:]_') |
| UC_BOARD:=$(call uppercase,$(BOARD)) |
| UC_CHIP:=$(call uppercase,$(CHIP)) |
| UC_CHIP_FAMILY:=$(call uppercase,$(CHIP_FAMILY)) |
| UC_CHIP_VARIANT:=$(call uppercase,$(CHIP_VARIANT)) |
| UC_CORE:=$(call uppercase,$(CORE)) |
| UC_PROJECT:=$(call uppercase,$(PROJECT)) |
| |
| # Transform the configuration into make variables. This must be done after |
| # the board/project/chip/core variables are defined, since some of the configs |
| # are dependent on particular configurations. |
| includes=include core/$(CORE)/include $(dirs) $(out) test |
| ifeq "$(TEST_BUILD)" "y" |
| _tsk_lst_file:=ec.tasklist |
| _tsk_lst:=$(shell echo "CONFIG_TASK_LIST CONFIG_TEST_TASK_LIST" | \ |
| $(CPP) -P -I$(BDIR) -Itest \ |
| -D"TASK_NOTEST(n, r, d, s)=" -D"TASK_ALWAYS(n, r, d, s)=n" \ |
| -D"TASK_TEST(n, r, d, s)=n" -imacros $(_tsk_lst_file) \ |
| -imacros $(PROJECT).tasklist) |
| else |
| _tsk_lst_file:=$(PROJECT).tasklist |
| _tsk_lst:=$(shell echo "CONFIG_TASK_LIST" | $(CPP) -P \ |
| -I$(BDIR) -D"TASK_NOTEST(n, r, d, s)=n" \ |
| -D"TASK_ALWAYS(n, r, d, s)=n" -imacros $(_tsk_lst_file)) |
| endif |
| _tsk_cfg:=$(foreach t,$(_tsk_lst) ,HAS_TASK_$(t)) |
| CPPFLAGS+=$(foreach t,$(_tsk_cfg),-D$(t)) |
| _flag_cfg:=$(shell $(CPP) $(CPPFLAGS) -P -dM -Ichip/$(CHIP) -I$(BDIR) \ |
| include/config.h | grep -o "\#define CONFIG_[A-Z0-9_]*" | \ |
| cut -c9- | sort) |
| |
| $(foreach c,$(_tsk_cfg) $(_flag_cfg),$(eval $(c)=y)) |
| |
| ifneq "$(CONFIG_COMMON_RUNTIME)" "y" |
| _irq_list:=$(shell $(CPP) $(CPPFLAGS) -P -Ichip/$(CHIP) -I$(BDIR) \ |
| -D"ENABLE_IRQ(x)=EN_IRQ x" -imacros chip/$(CHIP)/registers.h \ |
| $(BDIR)/ec.irqlist | grep "EN_IRQ .*" | cut -c8-) |
| CPPFLAGS+=$(foreach irq,$(_irq_list),\ |
| -D"irq_$(irq)_handler_optional=irq_$(irq)_handler") |
| endif |
| |
| # Compute RW firmware size and offset |
| _rw_off_str:=$(shell echo "CONFIG_RW_MEM_OFF" | $(CPP) $(CPPFLAGS) -P \ |
| -Ichip/$(CHIP) -I$(BDIR) -imacros include/config.h) |
| _rw_off:=$(shell echo "$$(($(_rw_off_str)))") |
| _rw_size_str:=$(shell echo "CONFIG_RW_SIZE" | $(CPP) $(CPPFLAGS) -P \ |
| -Ichip/$(CHIP) -I$(BDIR) -imacros include/config.h) |
| _rw_size:=$(shell echo "$$(($(_rw_size_str)))") |
| _program_memory_base_str:=$(shell echo "CONFIG_PROGRAM_MEMORY_BASE" | \ |
| $(CPP) $(CPPFLAGS) -P \ |
| -Ichip/$(CHIP) -I$(BDIR) -imacros include/config.h) |
| _program_memory_base=$(shell echo "$$(($(_program_memory_base_str)))") |
| |
| $(eval BOARD_$(UC_BOARD)=y) |
| $(eval CHIP_$(UC_CHIP)=y) |
| $(eval CHIP_VARIANT_$(UC_CHIP_VARIANT)=y) |
| $(eval CHIP_FAMILY_$(UC_CHIP_FAMILY)=y) |
| |
| # Private subdirectories may call this from their build.mk |
| objs_from_dir=$(foreach obj, $($(2)-y), $(1)/$(obj)) |
| |
| # Get build configuration from sub-directories |
| # Note that this re-includes the board and chip makefiles |
| include $(BDIR)/build.mk |
| include chip/$(CHIP)/build.mk |
| include core/$(CORE)/build.mk |
| |
| include common/build.mk |
| include driver/build.mk |
| include power/build.mk |
| -include private/build.mk |
| -include private-cr51/build.mk |
| include test/build.mk |
| include util/build.mk |
| include util/lock/build.mk |
| include util/signer/build.mk |
| |
| includes+=$(includes-y) |
| |
| # Get all sources to build |
| all-obj-y+=$(call objs_from_dir,core/$(CORE),core) |
| all-obj-y+=$(call objs_from_dir,chip/$(CHIP),chip) |
| all-obj-y+=$(call objs_from_dir,$(BDIR),board) |
| all-obj-y+=$(call objs_from_dir,private,private) |
| all-obj-y+=$(call objs_from_dir,private-cr51,private-cr51) |
| all-obj-y+=$(call objs_from_dir,common,common) |
| all-obj-y+=$(call objs_from_dir,driver,driver) |
| all-obj-y+=$(call objs_from_dir,power,power) |
| all-obj-y+=$(call objs_from_dir,test,$(PROJECT)) |
| dirs=core/$(CORE) chip/$(CHIP) $(BDIR) common power test |
| dirs+= private private-cr51 |
| dirs+=$(shell find driver -type d) |
| common_dirs=util |
| |
| ifeq ($(custom-ro_objs-y),) |
| ro-objs := $(sort $(foreach obj, $(all-obj-y), $(out)/RO/$(obj))) |
| else |
| ro-objs := $(sort $(foreach obj, $(custom-ro_objs-y), $(out)/RO/$(obj))) |
| endif |
| |
| rw-objs := $(sort $(foreach obj, $(all-obj-y), $(out)/RW/$(obj))) |
| |
| # Don't include the shared objects in the RO/RW image if we're enabling |
| # the shared objects library. |
| ifeq ($(CONFIG_SHAREDLIB),y) |
| ro-objs := $(filter-out %_sharedlib.o, $(ro-objs)) |
| endif |
| ro-deps := $(ro-objs:%.o=%.o.d) |
| rw-deps := $(rw-objs:%.o=%.o.d) |
| deps := $(ro-deps) $(rw-deps) |
| |
| .PHONY: ro rw |
| $(config): $(out)/$(PROJECT).bin |
| @printf '%s=y\n' $(_tsk_cfg) $(_flag_cfg) > $@ |
| |
| def_all_deps:=utils ro rw notice $(config) $(PROJECT_EXTRA) |
| all_deps?=$(def_all_deps) |
| all: $(all_deps) |
| |
| ro: override BLD:=RO |
| ro: $(libsharedobjs_elf-y) $(out)/RO/$(PROJECT).RO.flat |
| |
| rw: override BLD:=RW |
| rw: $(libsharedobjs_elf-y) $(out)/RW/$(PROJECT).RW.flat |
| |
| # Shared objects library |
| SHOBJLIB := libsharedobjs |
| sharedlib-objs := $(filter %_sharedlib.o, $(all-obj-y)) |
| sharedlib-objs := $(foreach obj, $(sharedlib-objs), $(out)/$(SHOBJLIB)/$(obj)) |
| sharedlib-deps := $(sharedlib-objs:%.o=%.o.d) |
| deps += $(sharedlib-deps) |
| def_libsharedobjs_deps := $(sharedlib-objs) |
| libsharedobjs_deps ?= $(def_libsharedobjs_deps) |
| |
| libsharedobjs-$(CONFIG_SHAREDLIB) := $(out)/$(SHOBJLIB)/$(SHOBJLIB).flat |
| libsharedobjs_elf-$(CONFIG_SHAREDLIB) := \ |
| $(libsharedobjs-$(CONFIG_SHAREDLIB):%.flat=%.elf) |
| libsharedobjs: $(libsharedobjs-y) |
| |
| include Makefile.rules |
| export CROSS_COMPILE CFLAGS CC CPP LD NM AR OBJCOPY OBJDUMP |
| endif # SYMLINK |