1044 lines
31 KiB
Makefile
1044 lines
31 KiB
Makefile
|
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||
|
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CONFIG_CROSS_COMPILE := arm-none-eabi-
|
||
|
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CONFIG_STRICT_CFLAGS ?= y
|
||
|
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CONFIG_SAVE_TARGET ?= n
|
||
|
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CONFIG_FORCE_WIN_SHELL ?= y
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||
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||
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export CONFIG_STRICT_CFLAGS CONFIG_SAVE_TARGET CONFIG_FORCE_WIN_SHELL
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||
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||
|
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# ---------------------------------------------------------------------------
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||
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# Platform and shell detection
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||
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||
|
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export WIN_PLAT := n
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||
|
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ifeq ($(OS),Windows_NT)
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||
|
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# Detect Cygwin
|
||
|
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ifneq ($(findstring /,$(PWD)),/)
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|
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# also $(findstring /,$(HOME)) ?
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WIN_PLAT := y
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||
|
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endif
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||
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endif
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||
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||
|
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export WIN_SHELL := n
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|
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ifeq ($(WIN_PLAT),y)
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ifeq ($(CONFIG_FORCE_WIN_SHELL),y)
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WIN_SHELL := y
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||
|
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else
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||
|
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# Detect Unix-style shell
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||
|
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ifeq ($(shell echo $$0),$$0)
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WIN_SHELL := y
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|
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endif
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endif
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||
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endif
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BACKSLASH := \ # backslash
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BACKSLASH := $(strip $(BACKSLASH))
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||
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TO_UNIX_PATH = $(subst $(BACKSLASH),/,$(1))
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||
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TO_WIN_PATH = $(subst /,$(BACKSLASH),$(1))
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||
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ESC_WIN_PATH = $(subst $(BACKSLASH),$(BACKSLASH)$(BACKSLASH),$(1))
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||
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||
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ifeq ($(WIN_PLAT),y)
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||
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ifeq ($(WIN_SHELL),y)
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||
|
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# make will choose sh.exe as SHELL if it finds sh.exe in the directories of PATH, regardless of
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||
|
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# the setting in environment or parent (e.g., when git.exe is in the PATH)
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SHELL := cmd.exe
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|
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SHELL_CMD = $(call TO_WIN_PATH,$(1))
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|
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else
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||
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SHELL_CMD = $(call ESC_WIN_PATH,$(call TO_WIN_PATH,$(1)))
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||
|
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endif
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||
|
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else
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||
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SHELL_CMD = $(1)
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|
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endif
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||
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||
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# The Unix-style path is recognized by compiler toolchain, GNU utilities and windows redirection
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# operators, but not by windows native commands (e.g., mkdir) and applications.
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# End of platform and shell detection
|
||
|
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# ---------------------------------------------------------------------------
|
||
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|
||
|
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# Do not use make's built-in rules and variables
|
||
|
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# (this increases performance and avoids hard-to-debug behaviour);
|
||
|
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MAKEFLAGS += -rR
|
||
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|
||
|
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# Avoid funny character set dependencies
|
||
|
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unexport LC_ALL
|
||
|
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LC_COLLATE=C
|
||
|
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LC_NUMERIC=C
|
||
|
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export LC_COLLATE LC_NUMERIC
|
||
|
|
|
||
|
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# Avoid interference with shell env settings
|
||
|
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unexport GREP_OPTIONS
|
||
|
|
|
||
|
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# Check if just to show the help content
|
||
|
|
ifeq ($(MAKECMDGOALS),help)
|
||
|
|
ifeq ($(T),)
|
||
|
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HELP_TARGET := 1
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
ifneq ($(HELP_TARGET),1)
|
||
|
|
# We are using a recursive build, so we need to do a little thinking
|
||
|
|
# to get the ordering right.
|
||
|
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#
|
||
|
|
# Most importantly: sub-Makefiles should only ever modify files in
|
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|
|
# their own directory. If in some directory we have a dependency on
|
||
|
|
# a file in another dir (which doesn't happen often, but it's often
|
||
|
|
# unavoidable when linking the built-in.o targets which finally
|
||
|
|
# turn into elf file), we will call a sub make in that other dir, and
|
||
|
|
# after that we are sure that everything which is in that other dir
|
||
|
|
# is now up to date.
|
||
|
|
#
|
||
|
|
# The only cases where we need to modify files which have global
|
||
|
|
# effects are thus separated out and done before the recursive
|
||
|
|
# descending is started. They are now explicitly listed as the
|
||
|
|
# prepare rule.
|
||
|
|
|
||
|
|
# Beautify output
|
||
|
|
# ---------------------------------------------------------------------------
|
||
|
|
#
|
||
|
|
# Normally, we echo the whole command before executing it. By making
|
||
|
|
# that echo $($(quiet)$(cmd)), we now have the possibility to set
|
||
|
|
# $(quiet) to choose other forms of output instead, e.g.
|
||
|
|
#
|
||
|
|
# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
|
||
|
|
# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
|
||
|
|
#
|
||
|
|
# If $(quiet) is empty, the whole command will be printed.
|
||
|
|
# If it is set to "quiet_", only the short version will be printed.
|
||
|
|
# If it is set to "silent_", nothing will be printed at all, since
|
||
|
|
# the variable $(silent_cmd_cc_o_c) doesn't exist.
|
||
|
|
#
|
||
|
|
# A simple variant is to prefix commands with $(Q) - that's useful
|
||
|
|
# for commands that shall be hidden in non-verbose mode.
|
||
|
|
#
|
||
|
|
# $(Q)ln $@ :<
|
||
|
|
#
|
||
|
|
# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
|
||
|
|
# If KBUILD_VERBOSE equals 1 then the above command is displayed.
|
||
|
|
#
|
||
|
|
# To put more focus on warnings, be less verbose as default
|
||
|
|
# Use 'make V=1' to see the full commands
|
||
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||
|
|
ifeq ("$(origin V)","command line")
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||
|
|
KBUILD_VERBOSE = $(V)
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||
|
|
endif
|
||
|
|
ifndef KBUILD_VERBOSE
|
||
|
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KBUILD_VERBOSE = 0
|
||
|
|
endif
|
||
|
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|
||
|
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ifeq ($(KBUILD_VERBOSE),1)
|
||
|
|
quiet :=
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||
|
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Q :=
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||
|
|
else
|
||
|
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quiet := quiet_
|
||
|
|
Q := @
|
||
|
|
endif
|
||
|
|
|
||
|
|
# If the user is running make -s (silent mode), suppress echoing of
|
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# commands
|
||
|
|
|
||
|
|
ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
|
||
|
|
ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
|
||
|
|
quiet=silent_
|
||
|
|
endif
|
||
|
|
else # make-3.8x
|
||
|
|
ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
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||
|
|
quiet=silent_
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
export quiet Q KBUILD_VERBOSE
|
||
|
|
|
||
|
|
TARGET_CFG_FILE = config/$(T)/target.mk
|
||
|
|
TARGET_COMMON_FILE = config/common.mk
|
||
|
|
|
||
|
|
# To locate output files in a separate directory two syntaxes are supported.
|
||
|
|
# In both cases the working directory must be the root of the kernel src.
|
||
|
|
# 1) O=
|
||
|
|
# Use "make O=dir/to/store/output/files/"
|
||
|
|
#
|
||
|
|
# 2) Set KBUILD_OUTPUT
|
||
|
|
# Set the environment variable KBUILD_OUTPUT to point to the directory
|
||
|
|
# where the output files shall be placed.
|
||
|
|
# export KBUILD_OUTPUT=dir/to/store/output/files/
|
||
|
|
# make
|
||
|
|
#
|
||
|
|
# The O= assignment takes precedence over the KBUILD_OUTPUT environment
|
||
|
|
# variable.
|
||
|
|
|
||
|
|
# KBUILD_SRC is set on invocation of make in OBJ directory
|
||
|
|
# KBUILD_SRC is not intended to be used by the regular user (for now)
|
||
|
|
ifeq ($(KBUILD_SRC),)
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||
|
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|
||
|
|
export KBUILD_ROOT := $(CURDIR)
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||
|
|
|
||
|
|
# OK, Make called in directory where kernel src resides
|
||
|
|
# Do we want to locate output files in a separate directory?
|
||
|
|
|
||
|
|
export KBUILD_OUTPUT := $(CURDIR)/out
|
||
|
|
ifeq ("$(origin O)","command line")
|
||
|
|
KBUILD_OUTPUT := $(O)
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||
|
|
endif
|
||
|
|
|
||
|
|
# Select target
|
||
|
|
ifeq ($(CONFIG_SAVE_TARGET),y)
|
||
|
|
ifeq ($(T),)
|
||
|
|
-include $(KBUILD_OUTPUT)/.config
|
||
|
|
T := $(strip $(T))
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
ifeq ($(T),)
|
||
|
|
$(error Please specify the target in the command line: T=<targetName>)
|
||
|
|
endif
|
||
|
|
ifeq ($(wildcard $(TARGET_CFG_FILE)),)
|
||
|
|
$(error Invalid target: T=$(T))
|
||
|
|
endif
|
||
|
|
export T
|
||
|
|
|
||
|
|
KBUILD_OUTPUT := $(KBUILD_OUTPUT)/$(T)
|
||
|
|
|
||
|
|
# That's our default target when none is given on the command line
|
||
|
|
PHONY := _all
|
||
|
|
_all:
|
||
|
|
|
||
|
|
# Cancel implicit rules on the config file
|
||
|
|
$(KBUILD_OUTPUT)/.config: ;
|
||
|
|
|
||
|
|
ifneq ($(KBUILD_OUTPUT),)
|
||
|
|
# Invoke a second make in the output directory, passing relevant variables
|
||
|
|
# check that the output directory actually exists
|
||
|
|
saved-output := $(KBUILD_OUTPUT)
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
KBUILD_OUTPUT := $(subst /,\,$(KBUILD_OUTPUT))
|
||
|
|
KBUILD_OUTPUT := $(shell ( if not exist $(KBUILD_OUTPUT)\ mkdir $(KBUILD_OUTPUT) ) \
|
||
|
|
&& cd $(KBUILD_OUTPUT) && cd)
|
||
|
|
KBUILD_OUTPUT := $(subst \,/,$(KBUILD_OUTPUT))
|
||
|
|
else
|
||
|
|
KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
|
||
|
|
&& /bin/pwd)
|
||
|
|
endif
|
||
|
|
|
||
|
|
$(if $(KBUILD_OUTPUT),, \
|
||
|
|
$(error failed to create output directory "$(saved-output)"))
|
||
|
|
|
||
|
|
ifeq ($(CONFIG_SAVE_TARGET),y)
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
_dummy := $(shell echo T := $(T)> $(KBUILD_OUTPUT)/../.config)
|
||
|
|
else
|
||
|
|
_dummy := $(shell echo "T := $(T)" > $(KBUILD_OUTPUT)/../.config)
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
PHONY += $(MAKECMDGOALS) sub-make
|
||
|
|
|
||
|
|
$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
|
||
|
|
@:
|
||
|
|
|
||
|
|
include $(CURDIR)/scripts/submods_init.mk
|
||
|
|
|
||
|
|
ifneq ($(filter allclean,$(MAKECMDGOALS)),)
|
||
|
|
ALLCLEAN := 1
|
||
|
|
export ALLCLEAN
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Look for make include files relative to root of kernel src
|
||
|
|
MAKEFLAGS += --include-dir=$(CURDIR)
|
||
|
|
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
START_TIME := $(shell echo %time%)
|
||
|
|
START_DATE_TIME := $(shell echo %date% %time%)
|
||
|
|
else
|
||
|
|
START_TIME := $(shell date +"%s.%N")
|
||
|
|
START_DATE_TIME := $(shell date +"%Y-%m-%d %T.%N")
|
||
|
|
endif
|
||
|
|
|
||
|
|
sub-make: FORCE
|
||
|
|
@echo MAKE START: $(START_DATE_TIME)
|
||
|
|
$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
|
||
|
|
-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
@echo MAKE END: %date% %time%
|
||
|
|
ifneq ($(wildcard tools/timediff.bat),)
|
||
|
|
@tools/timediff.bat "%time%" "$(START_TIME)"
|
||
|
|
endif
|
||
|
|
else
|
||
|
|
@echo MAKE END: $$(date +"%Y-%m-%d %T.%N")
|
||
|
|
@printf "MAKE TIME: %.2f seconds\n" $$(echo "$$(date +%s.%N) - $(START_TIME)" | bc)
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Leave processing to above invocation of make
|
||
|
|
skip-makefile := 1
|
||
|
|
endif # ifneq ($(KBUILD_OUTPUT),)
|
||
|
|
endif # ifeq ($(KBUILD_SRC),)
|
||
|
|
|
||
|
|
# We process the rest of the Makefile if this is the final invocation of make
|
||
|
|
ifeq ($(skip-makefile),)
|
||
|
|
|
||
|
|
# Do not print "Entering directory ...",
|
||
|
|
# but we want to display it when entering to the output directory
|
||
|
|
# so that IDEs/editors are able to understand relative filenames.
|
||
|
|
MAKEFLAGS += --no-print-directory
|
||
|
|
|
||
|
|
# If building an external module we do not care about the all: rule
|
||
|
|
# but instead _all depend on modules
|
||
|
|
PHONY += all
|
||
|
|
_all: all
|
||
|
|
|
||
|
|
ifeq ($(KBUILD_SRC),)
|
||
|
|
# building in the source tree
|
||
|
|
srctree := .
|
||
|
|
else
|
||
|
|
ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
|
||
|
|
# building in a subdirectory of the source tree
|
||
|
|
srctree := ..
|
||
|
|
else
|
||
|
|
ifeq ($(KBUILD_SRC)/,$(dir $(patsubst %/,%,$(dir $(CURDIR)))))
|
||
|
|
srctree := ../..
|
||
|
|
else
|
||
|
|
srctree := $(KBUILD_SRC)
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
objtree := .
|
||
|
|
src := $(srctree)
|
||
|
|
obj := $(objtree)
|
||
|
|
|
||
|
|
VPATH := $(srctree)
|
||
|
|
|
||
|
|
export srctree objtree VPATH
|
||
|
|
|
||
|
|
# Git revision
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
GIT_REVISION := $(shell (where git >nul 2>&1) && (git rev-parse --short HEAD 2>nul))
|
||
|
|
else
|
||
|
|
GIT_REVISION := $(shell (which git >/dev/null 2>&1) && (git rev-parse --short HEAD 2>/dev/null))
|
||
|
|
endif
|
||
|
|
|
||
|
|
ifneq ($(GIT_REVISION),)
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
GIT_REVISION := $(GIT_REVISION)$(shell (git diff --quiet && git diff --cached --quiet) >nul 2>&1 || echo -dirty)
|
||
|
|
else
|
||
|
|
GIT_REVISION := $(GIT_REVISION)$(shell (git diff --quiet && git diff --cached --quiet) >/dev/null 2>&1 || echo -dirty)
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
|
||
|
|
# Cross compiling and selecting different set of gcc/bin-utils
|
||
|
|
# ---------------------------------------------------------------------------
|
||
|
|
#
|
||
|
|
# When performing cross compilation for other architectures ARCH shall be set
|
||
|
|
# to the target architecture. (See arch/* for the possibilities).
|
||
|
|
# ARCH can be set during invocation of make:
|
||
|
|
# make ARCH=ia64
|
||
|
|
# Another way is to have ARCH set in the environment.
|
||
|
|
# The default ARCH is the host where make is executed.
|
||
|
|
|
||
|
|
# CROSS_COMPILE specify the prefix used for all executables used
|
||
|
|
# during compilation. Only gcc and related bin-utils executables
|
||
|
|
# are prefixed with $(CROSS_COMPILE).
|
||
|
|
# CROSS_COMPILE can be set on the command line
|
||
|
|
# make CROSS_COMPILE=ia64-linux-
|
||
|
|
# Alternatively CROSS_COMPILE can be set in the environment.
|
||
|
|
# A third alternative is to store a setting in .config so that plain
|
||
|
|
# "make" in the configured kernel build directory always uses that.
|
||
|
|
# Default value for CROSS_COMPILE is not to prefix executables
|
||
|
|
# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
|
||
|
|
ARCH ?= arm
|
||
|
|
CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
|
||
|
|
|
||
|
|
# SHELL used by kbuild
|
||
|
|
ifneq ($(WIN_PLAT),y)
|
||
|
|
CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
|
||
|
|
else if [ -x /bin/bash ]; then echo /bin/bash; \
|
||
|
|
else echo sh; fi ; fi)
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Make variables (CC, etc...)
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
CC = armclang --target=arm-arm-none-eabi
|
||
|
|
CPP = $(CC) -E
|
||
|
|
AS = $(CC)
|
||
|
|
C++ = $(CC)
|
||
|
|
LD = $(CC)
|
||
|
|
AR = armar
|
||
|
|
NM = fromelf
|
||
|
|
STRIP = fromelf
|
||
|
|
OBJCOPY = fromelf
|
||
|
|
OBJDUMP = fromelf
|
||
|
|
else
|
||
|
|
AS = $(CROSS_COMPILE)as
|
||
|
|
CC = $(CROSS_COMPILE)gcc
|
||
|
|
CPP = $(CC) -E
|
||
|
|
C++ = $(CROSS_COMPILE)g++
|
||
|
|
LD = $(CC)
|
||
|
|
#LD = $(CROSS_COMPILE)ld
|
||
|
|
AR = $(CROSS_COMPILE)ar
|
||
|
|
NM = $(CROSS_COMPILE)nm
|
||
|
|
STRIP = $(CROSS_COMPILE)strip
|
||
|
|
OBJCOPY = $(CROSS_COMPILE)objcopy
|
||
|
|
OBJDUMP = $(CROSS_COMPILE)objdump
|
||
|
|
endif
|
||
|
|
|
||
|
|
AWK = awk
|
||
|
|
PERL = perl
|
||
|
|
PYTHON = python
|
||
|
|
|
||
|
|
KBUILD_CPPFLAGS :=
|
||
|
|
|
||
|
|
KBUILD_CFLAGS := -fno-common -fmessage-length=0 -Wall \
|
||
|
|
-fno-exceptions -ffunction-sections \
|
||
|
|
-fdata-sections -fomit-frame-pointer
|
||
|
|
|
||
|
|
# By default char on ARM platform is unsigned char, but char on x86 platform
|
||
|
|
# is signed char. To avoid porting issues, force char to be signed char
|
||
|
|
# on ARM platform.
|
||
|
|
KBUILD_CFLAGS += -fsigned-char
|
||
|
|
|
||
|
|
ifneq ($(TOOLCHAIN),armclang)
|
||
|
|
# 1) Avoid checking out-of-bound array accesses in a loop
|
||
|
|
# (and unrolling/peeling/exiting the loop based on the check)
|
||
|
|
# 2) Avoid detecting paths dereferencing a NULL pointer
|
||
|
|
# (and turning the problematic statement into a trap)
|
||
|
|
KBUILD_CFLAGS += -fno-aggressive-loop-optimizations \
|
||
|
|
-fno-isolate-erroneous-paths-dereference
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Treat floating-point constants as float instead of double
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
KBUILD_CFLAGS += -cl-single-precision-constant -fshort-enums
|
||
|
|
else
|
||
|
|
KBUILD_CFLAGS += -fsingle-precision-constant
|
||
|
|
endif
|
||
|
|
KBUILD_CFLAGS += -Wdouble-promotion -Wfloat-conversion
|
||
|
|
|
||
|
|
KBUILD_CFLAGS += -g
|
||
|
|
|
||
|
|
#C_ONLY_FLAGS := -std=gnu89
|
||
|
|
C_ONLY_FLAGS := -std=gnu99
|
||
|
|
|
||
|
|
C++_ONLY_FLAGS := -std=gnu++98 -fno-rtti
|
||
|
|
|
||
|
|
KBUILD_AFLAGS := -D__ASSEMBLY__
|
||
|
|
|
||
|
|
export ARCH CROSS_COMPILE AS LD CC
|
||
|
|
export CPP C++ AR NM STRIP OBJCOPY OBJDUMP
|
||
|
|
export MAKE AWK PERL PYTHON
|
||
|
|
|
||
|
|
export KBUILD_CPPFLAGS NOSTDINC_FLAGS OBJCOPYFLAGS LDFLAGS
|
||
|
|
export KBUILD_CFLAGS
|
||
|
|
export KBUILD_AFLAGS
|
||
|
|
export KBUILD_ARFLAGS
|
||
|
|
export C_ONLY_FLAGS C++_ONLY_FLAGS
|
||
|
|
|
||
|
|
# Files to ignore in find ... statements
|
||
|
|
|
||
|
|
export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
|
||
|
|
-name CVS -o -name .pc -o -name .hg -o -name .git \) \
|
||
|
|
-prune -o
|
||
|
|
export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
|
||
|
|
--exclude CVS --exclude .pc --exclude .hg --exclude .git
|
||
|
|
|
||
|
|
# ===========================================================================
|
||
|
|
# Build targets only.
|
||
|
|
|
||
|
|
# Objects we will link into $(IMAGE_FILE) / subdirs we need to visit
|
||
|
|
init-y := init/
|
||
|
|
core-y := main/
|
||
|
|
|
||
|
|
LDS_FILE := best1000.lds
|
||
|
|
|
||
|
|
# Link flags for all LD processes
|
||
|
|
LINK_CFLAGS :=
|
||
|
|
export LINK_CFLAGS
|
||
|
|
|
||
|
|
# Link flags for image only
|
||
|
|
LIB_LDFLAGS :=
|
||
|
|
CFLAGS_IMAGE := -static
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
LDFLAGS_IMAGE := --no_locals
|
||
|
|
else
|
||
|
|
LDFLAGS_IMAGE := -X --no-wchar-size-warning
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Include target definitions
|
||
|
|
include $(srctree)/$(TARGET_CFG_FILE)
|
||
|
|
include $(srctree)/$(TARGET_COMMON_FILE)
|
||
|
|
|
||
|
|
$(srctree)/$(TARGET_CFG_FILE): ;
|
||
|
|
$(srctree)/$(TARGET_COMMON_FILE): ;
|
||
|
|
|
||
|
|
ifneq ($(filter-out %/,$(init-y) $(core-y)),)
|
||
|
|
$(error The object files cannot be linked at top level: $(filter-out %/,$(init-y) $(core-y)))
|
||
|
|
endif
|
||
|
|
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
# Entry objects
|
||
|
|
ifeq ($(entry-y),)
|
||
|
|
entry-y += utils/boot_struct/boot_struct.o
|
||
|
|
ifeq ($(ROM_BUILD),1)
|
||
|
|
entry-y += tests/rom/startup_ARMCM.o
|
||
|
|
ifneq ($(filter tests/rom/,$(core-y)),)
|
||
|
|
entry-y += tests/rom/export_fn_rom.o
|
||
|
|
endif
|
||
|
|
else # !ROM_BUILD
|
||
|
|
entry-y += platform/cmsis/retarget_armclang_asm.o
|
||
|
|
ifeq ($(PROGRAMMER),1)
|
||
|
|
entry-y += tests/programmer/sys_api_programmer.o
|
||
|
|
else
|
||
|
|
entry-y += platform/main/startup_main.o
|
||
|
|
endif
|
||
|
|
endif # !ROM_BUILD
|
||
|
|
endif
|
||
|
|
ifeq ($(filter %.o,$(entry-y)),)
|
||
|
|
$(error Entry objects must be defined in entry-y in target.mk)
|
||
|
|
endif
|
||
|
|
BAD_ENTRY_OBJS := $(filter-out %.o,$(entry-y))
|
||
|
|
ifneq ($(BAD_ENTRY_OBJS),)
|
||
|
|
$(error Only objects can be defined in entry-y in target.mk: $(BAD_ENTRY_OBJS))
|
||
|
|
endif
|
||
|
|
IMAGE_ENTRY := $(entry-y)
|
||
|
|
ifeq ($(ROM_BUILD),1)
|
||
|
|
CFLAGS_IMAGE += -e Reset_Handler
|
||
|
|
else ifeq ($(PROGRAMMER),1)
|
||
|
|
CFLAGS_IMAGE += -e programmer_start
|
||
|
|
else
|
||
|
|
CFLAGS_IMAGE += -e __main
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
ifneq ($(NO_BUILDID),1)
|
||
|
|
ifneq ($(TOOLCHAIN),armclang)
|
||
|
|
LDFLAGS_IMAGE += --build-id
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
ifeq ($(CROSS_REF),1)
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
LDFLAGS_IMAGE += --xref
|
||
|
|
else
|
||
|
|
LDFLAGS_IMAGE += --cref
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
REAL_LDS_FILE := $(LDS_FILE)
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
SCATTER_LDS_SUFFIX := _scat
|
||
|
|
ifeq ($(filter %$(SCATTER_LDS_SUFFIX),$(LDS_FILE)),)
|
||
|
|
REAL_LDS_FILE := $(LDS_FILE)$(SCATTER_LDS_SUFFIX)
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Generate REVISION_INFO (might be defined in target)
|
||
|
|
ifeq ($(REVISION_INFO),)
|
||
|
|
ifeq ($(CUST_TGT_INFO),)
|
||
|
|
REVISION_INFO := $(GIT_REVISION):$(T)
|
||
|
|
else
|
||
|
|
REVISION_INFO := $(GIT_REVISION):$(CUST_TGT_INFO)
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
include $(srctree)/scripts/include.mk
|
||
|
|
|
||
|
|
REVISION_INFO := $(subst $(space),-,$(strip $(REVISION_INFO)))
|
||
|
|
SOFTWARE_VERSION := $(subst $(space),-,$(strip $(SOFTWARE_VERSION)))
|
||
|
|
|
||
|
|
$(info -------------------------------)
|
||
|
|
$(info REVISION_INFO: $(REVISION_INFO))
|
||
|
|
$(info -------------------------------)
|
||
|
|
|
||
|
|
# Build host and user info
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
export BUILD_HOSTNAME := $(COMPUTERNAME)
|
||
|
|
export BUILD_USERNAME := $(USERNAME)
|
||
|
|
else
|
||
|
|
export BUILD_HOSTNAME := $(shell hostname -s)
|
||
|
|
export BUILD_USERNAME := $(shell id -un)
|
||
|
|
endif
|
||
|
|
|
||
|
|
BUILD_HOSTNAME := $(subst $(space),-,$(strip $(BUILD_HOSTNAME)))
|
||
|
|
BUILD_USERNAME := $(subst $(space),-,$(strip $(BUILD_USERNAME)))
|
||
|
|
|
||
|
|
# Default kernel image to build when no specific target is given.
|
||
|
|
# IMAGE_FILE may be overruled on the command line or
|
||
|
|
# set in the environment
|
||
|
|
IMAGE_FILE ?= $(notdir $(T)).elf
|
||
|
|
|
||
|
|
ifneq ($(filter .map .bin .hex .lst,$(suffix $(IMAGE_FILE))),)
|
||
|
|
$(error Invalid IMAGE_FILE (conflicted suffix): $(IMAGE_FILE))
|
||
|
|
endif
|
||
|
|
|
||
|
|
LST_SECTION_OPTS :=
|
||
|
|
LST_SECTION_NAME :=
|
||
|
|
ifneq ($(LST_ONLY_SECTION),)
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
LST_SECTION_OPTS += $(foreach m,$(subst $(comma),$(space),$(LST_ONLY_SECTION)),--only=$m )
|
||
|
|
else
|
||
|
|
LST_SECTION_OPTS += $(foreach m,$(subst $(comma),$(space),$(LST_ONLY_SECTION)),-j $m )
|
||
|
|
endif
|
||
|
|
LST_SECTION_NAME := _$(subst *,+,$(subst !,-,$(LST_ONLY_SECTION)))
|
||
|
|
endif
|
||
|
|
ifneq ($(LST_RM_SECTION),)
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
LST_SECTION_OPTS += $(foreach m,$(subst $(comma),$(space),$(LST_RM_SECTION)),--ignore_section=$m )
|
||
|
|
else
|
||
|
|
LST_SECTION_OPTS += $(foreach m,$(subst $(comma),$(space),$(LST_RM_SECTION)),-R $m )
|
||
|
|
endif
|
||
|
|
LST_SECTION_NAME := $(LST_SECTION_NAME)_no_$(subst *,+,$(subst !,-,$(LST_RM_SECTION)))
|
||
|
|
endif
|
||
|
|
|
||
|
|
IMAGE_MAP := $(addsuffix .map,$(basename $(IMAGE_FILE)))
|
||
|
|
IMAGE_BIN := $(addsuffix .bin,$(basename $(IMAGE_FILE)))
|
||
|
|
STR_BIN := $(addsuffix .str,$(basename $(IMAGE_FILE)))
|
||
|
|
IMAGE_HEX := $(addsuffix .hex,$(basename $(IMAGE_FILE)))
|
||
|
|
ifeq ($(LST_SECTION_OPTS),)
|
||
|
|
IMAGE_LST := $(addsuffix .lst,$(basename $(IMAGE_FILE)))
|
||
|
|
else
|
||
|
|
IMAGE_LST := $(addsuffix $(LST_SECTION_NAME).lst,$(basename $(IMAGE_FILE)))
|
||
|
|
IMAGE_SEC := $(addsuffix $(LST_SECTION_NAME)$(suffix $(IMAGE_FILE)),$(basename $(IMAGE_FILE)))
|
||
|
|
endif
|
||
|
|
|
||
|
|
LDS_TARGET := _$(notdir $(REAL_LDS_FILE))
|
||
|
|
|
||
|
|
IMAGE_VER := build_info.o
|
||
|
|
|
||
|
|
targets := $(LDS_TARGET) $(IMAGE_FILE) $(IMAGE_BIN) $(STR_BIN) $(IMAGE_LST) $(IMAGE_VER)
|
||
|
|
cmd_files := $(wildcard $(foreach f,$(targets),$(call get_depfile_name,$(f))))
|
||
|
|
|
||
|
|
ifneq ($(cmd_files),)
|
||
|
|
include $(cmd_files)
|
||
|
|
$(cmd_files): ;
|
||
|
|
endif
|
||
|
|
|
||
|
|
# The all: target is the default when no target is given on the
|
||
|
|
# command line.
|
||
|
|
# This allow a user to issue only 'make' to build a kernel including modules
|
||
|
|
# Defaults to $(IMAGE_BIN)
|
||
|
|
ifeq ($(TRACE_STR_SECTION),1)
|
||
|
|
all: $(IMAGE_BIN) $(STR_BIN) ;
|
||
|
|
else
|
||
|
|
all: $(IMAGE_BIN) ;
|
||
|
|
endif
|
||
|
|
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
cmd_gen-IMAGE_BIN = $(OBJCOPY) --bincombined -o $@ $<
|
||
|
|
else
|
||
|
|
cmd_gen-IMAGE_BIN = $(OBJCOPY) -R .trc_str -O binary $< $@
|
||
|
|
endif
|
||
|
|
quiet_cmd_gen-IMAGE_BIN = GENBIN $@
|
||
|
|
|
||
|
|
$(IMAGE_BIN): $(IMAGE_FILE)
|
||
|
|
ifneq ($(filter 1,$(COMPILE_ONLY) $(NO_BIN)),)
|
||
|
|
@:
|
||
|
|
else
|
||
|
|
+$(call if_changed,gen-IMAGE_BIN)
|
||
|
|
endif
|
||
|
|
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
cmd_gen-STR_BIN = $(OBJCOPY) --bincombined -o $@ $<
|
||
|
|
else
|
||
|
|
cmd_gen-STR_BIN = $(OBJCOPY) -j .code_start_addr -j .rodata_str -j .trc_str \
|
||
|
|
--change-section-lma .code_start_addr=0x00000000 \
|
||
|
|
--change-section-lma .rodata_str=0x00000010 \
|
||
|
|
--change-section-lma .trc_str=0x00008000 \
|
||
|
|
-O binary $< $@
|
||
|
|
endif
|
||
|
|
quiet_cmd_gen-STR_BIN = GENBIN $@
|
||
|
|
|
||
|
|
$(STR_BIN): $(IMAGE_FILE)
|
||
|
|
ifneq ($(filter 1,$(COMPILE_ONLY) $(NO_BIN)),)
|
||
|
|
@:
|
||
|
|
else
|
||
|
|
+$(call if_changed,gen-STR_BIN)
|
||
|
|
endif
|
||
|
|
|
||
|
|
ifneq ($(TOOLCHAIN),armclang)
|
||
|
|
cmd_gen-IMAGE_HEX = $(OBJCOPY) -O ihex $< $@
|
||
|
|
quiet_cmd_gen-IMAGE_HEX = GENHEX $@
|
||
|
|
|
||
|
|
$(IMAGE_HEX): $(IMAGE_FILE)
|
||
|
|
ifeq ($(COMPILE_ONLY),1)
|
||
|
|
@:
|
||
|
|
else
|
||
|
|
+$(call if_changed,gen-IMAGE_HEX)
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
PHONY += lst lst_only
|
||
|
|
lst lst_only: $(IMAGE_LST) ;
|
||
|
|
|
||
|
|
ifneq ($(filter lst_only,$(MAKECMDGOALS)),)
|
||
|
|
NO_COMPILE := 1
|
||
|
|
endif
|
||
|
|
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
cmd_gen-IMAGE_LST = $(OBJDUMP) $(LST_SECTION_OPTS) --datasymbols --text -c -d --output=$@ $<
|
||
|
|
else
|
||
|
|
ifeq ($(LST_SECTION_OPTS),)
|
||
|
|
cmd_gen-IMAGE_LST = $(OBJDUMP) -Sldx $< > $@
|
||
|
|
else
|
||
|
|
cmd_gen-IMAGE_LST = $(OBJCOPY) $(LST_SECTION_OPTS) $< $(IMAGE_SEC) && $(OBJDUMP) -Sldx $(IMAGE_SEC) > $@
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
quiet_cmd_gen-IMAGE_LST = GENLST $@
|
||
|
|
|
||
|
|
$(IMAGE_LST): $(IMAGE_FILE)
|
||
|
|
+$(call if_changed,gen-IMAGE_LST)
|
||
|
|
|
||
|
|
|
||
|
|
# Flags
|
||
|
|
|
||
|
|
# arch Makefile may override CC so keep this after arch Makefile is included
|
||
|
|
#ifeq ($(CONFIG_STRICT_CFLAGS),y)
|
||
|
|
#NOSTDINC_FLAGS += -nostdinc
|
||
|
|
#endif
|
||
|
|
#NOSTDINC_FLAGS += -isystem "$(subst \,/,$(shell $(CC) -print-file-name=include))"
|
||
|
|
|
||
|
|
ifeq ($(CONFIG_STRICT_CFLAGS),y)
|
||
|
|
# warn about C99 declaration after statement
|
||
|
|
#C_ONLY_FLAGS += -Wdeclaration-after-statement
|
||
|
|
|
||
|
|
# disallow errors like 'EXPORT_GPL(foo);' with missing header
|
||
|
|
C_ONLY_FLAGS += -Werror=implicit-int
|
||
|
|
|
||
|
|
# require functions to have arguments in prototypes, not empty 'int foo()'
|
||
|
|
#C_ONLY_FLAGS += -Werror=strict-prototypes
|
||
|
|
|
||
|
|
C_ONLY_FLAGS += -Werror-implicit-function-declaration
|
||
|
|
|
||
|
|
# Prohibit date/time macros, which would make the build non-deterministic
|
||
|
|
KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
|
||
|
|
|
||
|
|
KBUILD_CFLAGS += $(call cc-option,-Wlogical-op)
|
||
|
|
|
||
|
|
#KBUILD_CFLAGS += -Wno-address-of-packed-member
|
||
|
|
|
||
|
|
KBUILD_CFLAGS += -Wno-trigraphs \
|
||
|
|
-fno-strict-aliasing \
|
||
|
|
-Wno-format-security
|
||
|
|
|
||
|
|
#KBUILD_CFLAGS += Wundef
|
||
|
|
|
||
|
|
# use the deterministic mode of AR if available
|
||
|
|
KBUILD_ARFLAGS := D
|
||
|
|
|
||
|
|
include $(srctree)/scripts/extrawarn.mk
|
||
|
|
endif # CONFIG_STRICT_CFLAGS
|
||
|
|
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
KBUILD_CFLAGS += -Wno-typedef-redefinition
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
|
||
|
|
KBUILD_CPPFLAGS += $(KCPPFLAGS)
|
||
|
|
KBUILD_AFLAGS += $(KAFLAGS)
|
||
|
|
KBUILD_CFLAGS += $(KCFLAGS)
|
||
|
|
|
||
|
|
IMAGE-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(core-y)))
|
||
|
|
|
||
|
|
submodgoals =
|
||
|
|
ifneq ($(SUBMODS),)
|
||
|
|
include $(srctree)/scripts/submods.mk
|
||
|
|
|
||
|
|
IMAGE-builddirs := $(call get_subdirs,$(IMAGE-dirs),$(SUBMODS))
|
||
|
|
ifeq ($(COMPILE_ONLY),1)
|
||
|
|
submodgoals = $(call get_submodgoals,$@,$(SUBMODS))
|
||
|
|
endif
|
||
|
|
else
|
||
|
|
IMAGE-builddirs := $(IMAGE-dirs)
|
||
|
|
endif
|
||
|
|
|
||
|
|
IMAGE-alldirs := $(sort $(IMAGE-dirs) $(patsubst %/,%,$(filter %/, \
|
||
|
|
$(init-) $(core-) $(extra-))))
|
||
|
|
|
||
|
|
init-y := $(patsubst %/, %/built-in$(built_in_suffix), $(init-y))
|
||
|
|
core-y := $(patsubst %/, %/built-in$(built_in_suffix), $(core-y))
|
||
|
|
|
||
|
|
IMAGE_INIT := $(init-y)
|
||
|
|
IMAGE_MAIN := $(core-y)
|
||
|
|
|
||
|
|
ifeq ($(NO_COMPILE),1)
|
||
|
|
IMAGE-deps :=
|
||
|
|
else
|
||
|
|
IMAGE-deps := $(LDS_TARGET) $(IMAGE_INIT) $(IMAGE_MAIN) $(IMAGE_VER)
|
||
|
|
endif
|
||
|
|
|
||
|
|
BUILD_INFO_FLAGS := \
|
||
|
|
-DREVISION_INFO=$(REVISION_INFO) \
|
||
|
|
-DFLASH_SIZE=$(FLASH_SIZE) \
|
||
|
|
-DOTA_UPGRADE_CRC_LOG_SIZE=$(OTA_UPGRADE_CRC_LOG_SIZE) \
|
||
|
|
-DNV_REC_DEV_VER=$(NV_REC_DEV_VER) \
|
||
|
|
-I$(srctree)/platform/hal
|
||
|
|
|
||
|
|
BUILD_INFO_FLAGS += $(LDS_SECTION_FLAGS)
|
||
|
|
BUILD_INFO_FLAGS += -DCHIP=$(CHIP)
|
||
|
|
|
||
|
|
ifneq ($(CHIP_SUBTYPE),)
|
||
|
|
BUILD_INFO_FLAGS += -DCHIP_SUBTYPE=$(CHIP_SUBTYPE)
|
||
|
|
endif
|
||
|
|
ifneq ($(SOFTWARE_VERSION),)
|
||
|
|
BUILD_INFO_FLAGS += -DSOFTWARE_VERSION=$(SOFTWARE_VERSION)
|
||
|
|
endif
|
||
|
|
ifneq ($(OTA_BOOT_SIZE),0)
|
||
|
|
BUILD_INFO_FLAGS += -DOTA_BOOT_SIZE=$(OTA_BOOT_SIZE)
|
||
|
|
endif
|
||
|
|
ifneq ($(OTA_CODE_OFFSET),)
|
||
|
|
BUILD_INFO_FLAGS += -DOTA_CODE_OFFSET=$(OTA_CODE_OFFSET)
|
||
|
|
endif
|
||
|
|
ifneq ($(OTA_REMAP_OFFSET),)
|
||
|
|
BUILD_INFO_FLAGS += -DOTA_REMAP_OFFSET=$(OTA_REMAP_OFFSET)
|
||
|
|
endif
|
||
|
|
ifeq ($(CRC32_OF_IMAGE),1)
|
||
|
|
BUILD_INFO_FLAGS += -DCRC32_OF_IMAGE
|
||
|
|
endif
|
||
|
|
ifeq ($(TRACE_CRLF),1)
|
||
|
|
BUILD_INFO_FLAGS += -DTRACE_CRLF
|
||
|
|
endif
|
||
|
|
|
||
|
|
BUILD_INFO_FLAGS += -DKERNEL=$(KERNEL)
|
||
|
|
|
||
|
|
quiet_cmd_image_ver = CC $(IMAGE_VER)
|
||
|
|
cmd_image_ver = $(CC) $(filter-out -Werror=date-time, \
|
||
|
|
$(call flags,KBUILD_CPPFLAGS) \
|
||
|
|
$(call flags,KBUILD_CFLAGS) \
|
||
|
|
$(call flags,C_ONLY_FLAGS) \
|
||
|
|
$(NOSTDINC_FLAGS)) \
|
||
|
|
$(BUILD_INFO_FLAGS) \
|
||
|
|
-MD -MP -MF $(depfile) -MT $@ \
|
||
|
|
-c -o $@ $<
|
||
|
|
|
||
|
|
IMAGE_VER_SRC := $(src)/utils/build_info/build_info.c
|
||
|
|
|
||
|
|
$(IMAGE_VER): $(IMAGE_VER_SRC) $(filter-out $(IMAGE_VER),$(IMAGE-deps)) FORCE
|
||
|
|
$(call if_changed_dep,image_ver)
|
||
|
|
|
||
|
|
# Linker scripts preprocessor (.lds.S -> .lds)
|
||
|
|
# ---------------------------------------------------------------------------
|
||
|
|
quiet_cmd_cpp_lds_S = LDS $@
|
||
|
|
cmd_cpp_lds_S = $(CPP) $(call flags,KBUILD_CPPFLAGS) \
|
||
|
|
$(call flags,CPPFLAGS_$(LDS_FILE)) \
|
||
|
|
-MD -MP -MF $(depfile) -MT $@ \
|
||
|
|
$(NOSTDINC_FLAGS) \
|
||
|
|
-P -C -E -x c -o $@ $<
|
||
|
|
|
||
|
|
LDS_SRC_STEM := $(src)/scripts/link/$(REAL_LDS_FILE)
|
||
|
|
LDS_SRC := $(firstword $(wildcard $(LDS_SRC_STEM).S $(LDS_SRC_STEM).sx) $(LDS_SRC_STEM).S)
|
||
|
|
|
||
|
|
$(LDS_TARGET): $(LDS_SRC) FORCE
|
||
|
|
$(call if_changed_dep,cpp_lds_S)
|
||
|
|
|
||
|
|
PHONY += lds
|
||
|
|
lds: $(LDS_TARGET) ;
|
||
|
|
|
||
|
|
|
||
|
|
# Final link of $(IMAGE_FILE)
|
||
|
|
# ---------------------------------------------------------------------------
|
||
|
|
#
|
||
|
|
# 1) Link the archives twice to solve circular references between two or
|
||
|
|
# more archives. Otherwise we should use --start-group and --end-group
|
||
|
|
# options. Normally, an archive is searched only once in the order that
|
||
|
|
# it is specified on the command line.
|
||
|
|
# 2) Use --whole-archive option to solve weak symbol overriding issue.
|
||
|
|
# It tells LD to include every object file in the archive in the link,
|
||
|
|
# rather than searching the archive for the required object files.
|
||
|
|
# By default the strong symbols defined in the archive will not override
|
||
|
|
# any weak symbol, for LD only searches the archive if there is a undefined
|
||
|
|
# symbol (and a weak symbol is considered as a defined symbol).
|
||
|
|
#
|
||
|
|
ifeq ($(TOOLCHAIN),armclang)
|
||
|
|
#LDFLAGS_IMAGE += --symbols --list_mapping_symbols
|
||
|
|
ifeq ($(KBUILD_VERBOSE),1)
|
||
|
|
LDFLAGS_IMAGE += --verbose
|
||
|
|
endif
|
||
|
|
|
||
|
|
cmd_link-IMAGE_FILE = $(LD) -o $@ \
|
||
|
|
$(CFLAGS_IMAGE) \
|
||
|
|
-Wl,$(subst $(space),$(comma),$(strip \
|
||
|
|
$(LDFLAGS) $(LDFLAGS_IMAGE) \
|
||
|
|
--scatter=$(LDS_TARGET) \
|
||
|
|
--list=$(IMAGE_MAP) \
|
||
|
|
--info=summarysizes --info=summarystack --info=totals --info=unused \
|
||
|
|
--map --load_addr_map_info \
|
||
|
|
--remove --no_autoat \
|
||
|
|
--emit_debug_overlay_relocs --emit_debug_overlay_section \
|
||
|
|
--diag_style=gnu --diag_suppress=L6314 --diag_suppress=L6329)) \
|
||
|
|
$(IMAGE_ENTRY) $(IMAGE_INIT) $(IMAGE_MAIN) $(IMAGE_VER) \
|
||
|
|
$(LIB_LDFLAGS) $(LIB_LDFLAGS)
|
||
|
|
else
|
||
|
|
cmd_link-IMAGE_FILE = $(LD) -o $@ \
|
||
|
|
$(LD_USE_PATCH_SYMBOL) \
|
||
|
|
-T $(LDS_TARGET) \
|
||
|
|
$(CFLAGS_IMAGE) \
|
||
|
|
-Wl,$(subst $(space),$(comma),$(strip \
|
||
|
|
$(LDFLAGS) $(LDFLAGS_IMAGE) \
|
||
|
|
-Map=$(IMAGE_MAP) \
|
||
|
|
--gc-sections \
|
||
|
|
--whole-archive)) \
|
||
|
|
$(IMAGE_INIT) $(IMAGE_MAIN) $(IMAGE_VER) \
|
||
|
|
-Wl,--no-whole-archive $(LIB_LDFLAGS) $(LIB_LDFLAGS)
|
||
|
|
|
||
|
|
endif
|
||
|
|
quiet_cmd_link-IMAGE_FILE = LINK $@
|
||
|
|
|
||
|
|
|
||
|
|
# Include targets which we want to
|
||
|
|
# execute if the rest of the kernel build went well.
|
||
|
|
$(IMAGE_FILE): $(IMAGE-deps) FORCE
|
||
|
|
ifneq ($(filter 1,$(COMPILE_ONLY) $(NO_COMPILE)),)
|
||
|
|
@:
|
||
|
|
else
|
||
|
|
+$(call if_changed,link-IMAGE_FILE)
|
||
|
|
endif
|
||
|
|
|
||
|
|
ifneq ($(IMAGE-deps),)
|
||
|
|
# The actual objects are generated when descending,
|
||
|
|
# make sure no implicit rule kicks in
|
||
|
|
$(sort $(filter %/built-in$(built_in_suffix),$(IMAGE-deps))): $(IMAGE-builddirs) ;
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Handle descending into subdirectories listed in $(IMAGE-dirs)
|
||
|
|
# Preset locale variables to speed up the build process. Limit locale
|
||
|
|
# tweaks to this spot to avoid wrong language settings when running
|
||
|
|
# make menuconfig etc.
|
||
|
|
# Error messages still appears in the original language
|
||
|
|
|
||
|
|
PHONY += $(IMAGE-dirs)
|
||
|
|
$(IMAGE-dirs): scripts
|
||
|
|
$(Q)$(MAKE) $(build)=$@ $(submodgoals)
|
||
|
|
|
||
|
|
# clean - Delete most, but leave enough to build external modules
|
||
|
|
#
|
||
|
|
clean: rm-dirs := $(CLEAN_DIRS)
|
||
|
|
clean: rm-files := $(CLEAN_FILES)
|
||
|
|
ifneq ($(SUBMODS),)
|
||
|
|
clean-dirs := $(addprefix _clean_, $(IMAGE-builddirs))
|
||
|
|
else
|
||
|
|
clean-dirs := $(addprefix _clean_, $(IMAGE-alldirs))
|
||
|
|
endif
|
||
|
|
|
||
|
|
PHONY += $(clean-dirs) clean IMAGE-clean
|
||
|
|
$(clean-dirs):
|
||
|
|
$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
|
||
|
|
|
||
|
|
IMAGE-clean:
|
||
|
|
$(Q)$(call CMDRMFILE,$(IMAGE_FILE) $(IMAGE_MAP) \
|
||
|
|
$(IMAGE_BIN) $(STR_BIN) $(IMAGE_HEX) $(IMAGE_LST) \
|
||
|
|
$(IMAGE_VER) $(LDS_TARGET))
|
||
|
|
|
||
|
|
clean: IMAGE-clean
|
||
|
|
|
||
|
|
clean: $(clean-dirs)
|
||
|
|
$(call cmd,rmdirs)
|
||
|
|
$(call cmd,rmfiles)
|
||
|
|
ifeq ($(SUBMODS),)
|
||
|
|
$(Q)$(call CMDRMFILER,.,*.o *.a *.s *.d)
|
||
|
|
endif
|
||
|
|
|
||
|
|
PHONY += allclean
|
||
|
|
ifeq ($(KBUILD_OUTPUT),)
|
||
|
|
allclean: clean ;
|
||
|
|
else
|
||
|
|
ifeq ($(SUBMODS),)
|
||
|
|
quiet_cmd_clean = RMDIR $(KBUILD_OUTPUT)
|
||
|
|
cmd_clean = $(call CMDRMDIR,$(KBUILD_OUTPUT))
|
||
|
|
|
||
|
|
allclean:
|
||
|
|
+$(call cmd,clean)
|
||
|
|
else
|
||
|
|
allclean: clean ;
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
quiet_cmd_predefined-macros = GEN $@
|
||
|
|
cmd_predefined-macros = $(CPP) $(filter-out -I% -D% -include%,$(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(C_ONLY_FLAGS)) \
|
||
|
|
-x c -E -dM -o $@ $(devnull)
|
||
|
|
|
||
|
|
PREDEF_MACRO_FILE := predefined-macros.txt
|
||
|
|
|
||
|
|
$(PREDEF_MACRO_FILE): FORCE
|
||
|
|
$(call cmd,predefined-macros)
|
||
|
|
|
||
|
|
PHONY += predefined-macros
|
||
|
|
predefined-macros: $(PREDEF_MACRO_FILE) ;
|
||
|
|
|
||
|
|
# FIXME Should go into a make.lib or something
|
||
|
|
# ===========================================================================
|
||
|
|
|
||
|
|
quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
|
||
|
|
cmd_rmdirs = $(if $(wildcard $(rm-dirs)),$(call CMDRMDIR,$(rm-dirs)))
|
||
|
|
|
||
|
|
quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
|
||
|
|
cmd_rmfiles = $(if $(wildcard $(rm-files)),$(call CMDRMFILE,$(rm-files)))
|
||
|
|
|
||
|
|
# Shorthand for $(Q)$(MAKE) -f scripts/clean.mk obj=dir
|
||
|
|
# Usage:
|
||
|
|
# $(Q)$(MAKE) $(clean)=dir
|
||
|
|
clean := -f $(srctree)/scripts/clean.mk obj
|
||
|
|
|
||
|
|
ifneq ($(WIN_PLAT),y)
|
||
|
|
# Generate tags for editors
|
||
|
|
# ---------------------------------------------------------------------------
|
||
|
|
quiet_cmd_tags = GEN $@
|
||
|
|
cmd_tags = $(CONFIG_SHELL) $(srctree)/tools/tags.sh $@
|
||
|
|
|
||
|
|
tags TAGS cscope gtags: FORCE
|
||
|
|
$(call cmd,tags)
|
||
|
|
endif
|
||
|
|
|
||
|
|
HELP_TARGET := 2
|
||
|
|
|
||
|
|
endif # ifeq ($(skip-makefile),)
|
||
|
|
endif # ifneq ($(HELP_TARGET),1)
|
||
|
|
|
||
|
|
# Help target
|
||
|
|
ifneq ($(HELP_TARGET),)
|
||
|
|
ifeq ($(HELP_TARGET),1)
|
||
|
|
include scripts/include.mk
|
||
|
|
endif
|
||
|
|
|
||
|
|
help: FORCE
|
||
|
|
$(call echo-help,Mandatory options:)
|
||
|
|
$(call echo-help, T=<targetBoard> - Select a target board configuration in config/)
|
||
|
|
$(call echo-help,)
|
||
|
|
$(call echo-help,Cleaning targets:)
|
||
|
|
$(call echo-help, clean - Remove most generated files)
|
||
|
|
$(call echo-help, allclean - Remove all generated files and the output directory if possible)
|
||
|
|
$(call echo-help,)
|
||
|
|
$(call echo-help,Generic targets:)
|
||
|
|
$(call echo-help, all - Build all targets marked with [*])
|
||
|
|
$(call echo-help, lst - Build the mixed source/assembly file of the final image)
|
||
|
|
$(call echo-help, lds - Build the linker script file)
|
||
|
|
ifeq ($(HELP_TARGET),2)
|
||
|
|
$(call echo-help,* $(IMAGE_FILE))
|
||
|
|
$(call echo-help, - Build the final image)
|
||
|
|
endif
|
||
|
|
$(call echo-help, dir/ - Build all files in dir and below)
|
||
|
|
$(call echo-help, dir/file.[oisS] - Build specified target only)
|
||
|
|
$(call echo-help, dir/file.lst - Build specified mixed source/assembly target only)
|
||
|
|
$(call echo-help, (requires a recent binutils and recent build (System.map)))
|
||
|
|
$(call echo-help,)
|
||
|
|
$(call echo-help, make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build)
|
||
|
|
$(call echo-help, make V=2 [targets] 2 => give reason for rebuild of target)
|
||
|
|
$(call echo-help, make O=dir [targets] Locate all output files in "dir", including .config)
|
||
|
|
$(call echo-help, make W=n [targets] Enable extra gcc checks, n=1,2,3 where)
|
||
|
|
$(call echo-help, 1: warnings which may be relevant and do not occur too often)
|
||
|
|
$(call echo-help, 2: warnings which occur quite often but may still be relevant)
|
||
|
|
$(call echo-help, 3: more obscure warnings, can most likely be ignored)
|
||
|
|
$(call echo-help, Multiple levels can be combined with W=12 or W=123)
|
||
|
|
$(call echo-help,)
|
||
|
|
$(call echo-help,Execute "make" or "make all" to build all targets marked with [*])
|
||
|
|
|
||
|
|
endif # ifneq ($(HELP_TARGET),)
|
||
|
|
|
||
|
|
# Cancel implicit rules on top Makefile
|
||
|
|
ifeq ($(KBUILD_SRC),)
|
||
|
|
$(CURDIR)/Makefile Makefile: ;
|
||
|
|
else
|
||
|
|
$(KBUILD_SRC)/Makefile Makefile: ;
|
||
|
|
endif
|
||
|
|
|
||
|
|
PHONY += FORCE
|
||
|
|
FORCE: ;
|
||
|
|
|
||
|
|
# Declare the contents of the .PHONY variable as phony. We keep that
|
||
|
|
# information in a variable so we can use it in if_changed and friends.
|
||
|
|
.PHONY: $(PHONY)
|