269 lines
9.0 KiB
Makefile
269 lines
9.0 KiB
Makefile
|
ifndef __INCLUDE_MK__
|
||
|
|
__INCLUDE_MK__ := 1
|
||
|
|
|
||
|
|
cur_makefile := $(lastword $(MAKEFILE_LIST))
|
||
|
|
|
||
|
|
$(cur_makefile): ;
|
||
|
|
|
||
|
|
####
|
||
|
|
# Generic definitions
|
||
|
|
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
ifeq ($(WIN_SHELL),y)
|
||
|
|
# make will choose sh.exe as SHELL if it finds sh.exe in the directories of PATH, regardless of
|
||
|
|
# the setting in environment or parent (e.g., when git.exe is in the PATH)
|
||
|
|
SHELL := cmd.exe
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Convenient variables
|
||
|
|
lparen := (
|
||
|
|
rparen := )
|
||
|
|
comma := ,
|
||
|
|
quote := "
|
||
|
|
squote := '
|
||
|
|
empty :=
|
||
|
|
space := $(empty) $(empty)
|
||
|
|
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
devnull := nul
|
||
|
|
else
|
||
|
|
devnull := /dev/null
|
||
|
|
endif
|
||
|
|
|
||
|
|
###
|
||
|
|
# Remove/copy commands
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
CMDRMFILE = del /f /q $(subst /,\,$1) >nul 2>&1
|
||
|
|
CMDRMFILER = cd $(subst /,\,$1) && del /f /q /s $(subst /,\,$2)
|
||
|
|
CMDRMDIR = rmdir /s /q $(subst /,\,$1) >nul 2>&1 || del /f /q /s $(subst /,\,$1)\*
|
||
|
|
CMDCPFILE = copy /y $(subst /,\,$1 $2)
|
||
|
|
else
|
||
|
|
CMDRMFILE = rm -f $1
|
||
|
|
CMDRMFILER = find $1 $(RCS_FIND_IGNORE) \
|
||
|
|
\( $(addprefix -name ,'$(firstword $2)') \
|
||
|
|
$(addprefix -o -name ',$(addsuffix ',$(filter-out $(firstword $2),$2))) \) \
|
||
|
|
-type f -print | xargs rm -f
|
||
|
|
CMDRMDIR = rm -fr $1
|
||
|
|
CMDCPFILE = cp -f $1 $2
|
||
|
|
endif
|
||
|
|
|
||
|
|
###
|
||
|
|
# Build-in obj suffix
|
||
|
|
ifeq ($(BUILT-IN-OBJ),1)
|
||
|
|
built_in_suffix := .o
|
||
|
|
else
|
||
|
|
built_in_suffix := .a
|
||
|
|
endif
|
||
|
|
|
||
|
|
###
|
||
|
|
# Name of target with a '.' as filename prefix. foo/bar.o => foo/.bar.o
|
||
|
|
dot-target = $(dir $(1)).$(notdir $(1))
|
||
|
|
|
||
|
|
###
|
||
|
|
# The temporary file to save gcc -MF generated dependencies must not
|
||
|
|
# contain a comma
|
||
|
|
get_depfile_name = $(subst $(comma),_,$(dot-target).d)
|
||
|
|
depfile = $(call get_depfile_name,$@)
|
||
|
|
|
||
|
|
###
|
||
|
|
# filename of target with directory and extension stripped
|
||
|
|
basetarget = $(basename $(notdir $@))
|
||
|
|
|
||
|
|
###
|
||
|
|
# filename of first prerequisite with directory and extension stripped
|
||
|
|
baseprereq = $(basename $(notdir $<))
|
||
|
|
|
||
|
|
###
|
||
|
|
# Escape special characters for use in echo statements
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
# Escape redirection character in echo in Windows
|
||
|
|
escchar = $(subst $(lparen),^$(lparen),$(subst $(rparen),^$(rparen),$(subst &,^&,$(subst |,^|,$(subst <,^<,$(subst >,^>,$1))))))
|
||
|
|
else
|
||
|
|
# Escape single quote for use in echo statements
|
||
|
|
escchar = $(subst $(squote),'\$(squote)',$1)
|
||
|
|
endif
|
||
|
|
|
||
|
|
###
|
||
|
|
# Easy method for doing a status message
|
||
|
|
kecho := :
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
quiet_kecho := echo.
|
||
|
|
else
|
||
|
|
quiet_kecho := echo
|
||
|
|
endif
|
||
|
|
silent_kecho := :
|
||
|
|
kecho := $($(quiet)kecho)
|
||
|
|
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
echo-help = @echo. $(call escchar,$(1)) &
|
||
|
|
else
|
||
|
|
echo-help = @echo ' $(call escchar,$(1))'
|
||
|
|
endif
|
||
|
|
|
||
|
|
###
|
||
|
|
# try-run
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
try-run = $(shell ($(1) >$(devnull) 2>&1) && echo. $(2) || echo. $(3))
|
||
|
|
# Or, using define to construct multi-line WIN commands,
|
||
|
|
# with if command: if not errorlevel 1
|
||
|
|
else
|
||
|
|
try-run = $(shell if ($(1)) >$(devnull) 2>&1; \
|
||
|
|
then echo "$(2)"; \
|
||
|
|
else echo "$(3)"; \
|
||
|
|
fi)
|
||
|
|
endif
|
||
|
|
|
||
|
|
###
|
||
|
|
# cc-option
|
||
|
|
cc-option = $(call try-run, \
|
||
|
|
$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(1) -c -x c \
|
||
|
|
-o $(devnull) $(devnull),$(1),$(2))
|
||
|
|
|
||
|
|
###
|
||
|
|
# Shorthand for $(Q)$(MAKE) -f scripts/build.mk obj=
|
||
|
|
# Usage:
|
||
|
|
# $(Q)$(MAKE) $(build)=dir
|
||
|
|
build := -f $(srctree)/scripts/build.mk obj
|
||
|
|
|
||
|
|
# Prefix -I with $(srctree) if it is not an absolute path.
|
||
|
|
# skip if -I has no parameter
|
||
|
|
#addtree = $(if $(patsubst -I%,%,$(1)), \
|
||
|
|
#$(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1))
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
addtree = $(if $(patsubst -I%,%,$(1)), \
|
||
|
|
$(if $(filter-out -I$(KBUILD_ROOT)/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1)),$(1)))
|
||
|
|
else
|
||
|
|
addtree = $(if $(patsubst -I%,%,$(1)), \
|
||
|
|
$(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1)),$(1)))
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Find all -I options and call addtree
|
||
|
|
flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o)))
|
||
|
|
|
||
|
|
# echo command.
|
||
|
|
# Short version is used, if $(quiet) equals `quiet_', otherwise full one.
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
echo-cmd = $(if $($(quiet)cmd_$(1)),\
|
||
|
|
echo. $(call escchar,$($(quiet)cmd_$(1)))$(echo-why) &&)
|
||
|
|
echo-cmd-nowhy = $(if $($(quiet)cmd_$(1)),\
|
||
|
|
echo. $(call escchar,$($(quiet)cmd_$(1))) &&)
|
||
|
|
else
|
||
|
|
echo-cmd = $(if $($(quiet)cmd_$(1)),\
|
||
|
|
echo ' $(call escchar,$($(quiet)cmd_$(1)))$(echo-why)' ;)
|
||
|
|
echo-cmd-nowhy = $(if $($(quiet)cmd_$(1)),\
|
||
|
|
echo ' $(call escchar,$($(quiet)cmd_$(1)))' ;)
|
||
|
|
endif
|
||
|
|
|
||
|
|
# printing commands
|
||
|
|
cmd = @$(echo-cmd) $(cmd_$(1))
|
||
|
|
|
||
|
|
# Add $(obj)/ for paths that are not absolute
|
||
|
|
objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o)))
|
||
|
|
|
||
|
|
###
|
||
|
|
# if_changed - execute command if any prerequisite is newer than
|
||
|
|
# target, or command line has changed
|
||
|
|
# if_changed_dep - as if_changed, but uses fixdep to reveal dependencies
|
||
|
|
# including used config symbols
|
||
|
|
# if_changed_rule - as if_changed but execute rule instead
|
||
|
|
# See Documentation/kbuild/makefiles.txt for more info
|
||
|
|
|
||
|
|
ifneq ($(KBUILD_NOCMDDEP),1)
|
||
|
|
# Check if both arguments has same arguments. Result is empty string if equal.
|
||
|
|
# User may override this check using make KBUILD_NOCMDDEP=1
|
||
|
|
arg-check = $(strip $(filter-out $(cmd_$(1)), $(cmd_$@)) \
|
||
|
|
$(filter-out $(cmd_$@), $(cmd_$(1))) )
|
||
|
|
else
|
||
|
|
arg-check = $(if $(strip $(cmd_$@)),,1)
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Replace >$< with >$$< to preserve $ when reloading the .cmd file
|
||
|
|
# (needed for make)
|
||
|
|
# Replace >#< with >\#< to avoid starting a comment in the .cmd file
|
||
|
|
# (needed for make)
|
||
|
|
# Replace >'< with >'\''< to be able to enclose the whole string in '...'
|
||
|
|
# (needed for the shell)
|
||
|
|
make-cmd = $(call escchar,$(subst \#,\\\#,$(subst $$,$$$$,$(cmd_$(1)))))
|
||
|
|
|
||
|
|
# Find any prerequisites that is newer than target or that does not exist.
|
||
|
|
# PHONY targets skipped in both cases.
|
||
|
|
any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
|
||
|
|
|
||
|
|
ifeq ($(WIN_PLAT),y)
|
||
|
|
depfile-new = echo. > $(depfile) && \
|
||
|
|
echo cmd_$@ := $(make-cmd) >> $(depfile) && \
|
||
|
|
echo. >> $(depfile)
|
||
|
|
depfile-add = echo. >> $(depfile) && \
|
||
|
|
echo cmd_$@ := $(make-cmd) >> $(depfile) && \
|
||
|
|
echo. >> $(depfile)
|
||
|
|
else
|
||
|
|
depfile-new = printf '\n%s\n' 'cmd_$@ := $(make-cmd)' > $(depfile)
|
||
|
|
depfile-add = printf '\n%s\n' 'cmd_$@ := $(make-cmd)' >> $(depfile)
|
||
|
|
endif
|
||
|
|
|
||
|
|
# Execute command if command has changed or prerequisite(s) are updated.
|
||
|
|
#
|
||
|
|
if_changed = $(if $(strip $(any-prereq) $(arg-check)), \
|
||
|
|
@ ( $(echo-cmd) $(cmd_$(1)) ) && \
|
||
|
|
( $(depfile-new) ))
|
||
|
|
|
||
|
|
if_changed2 = $(if $(strip $(any-prereq) $(call arg-check,$(2))), \
|
||
|
|
@ ( $(call echo-cmd,$(1)) $(cmd_$(1)) && \
|
||
|
|
$(call echo-cmd,$(2)) $(cmd_$(2)) ) && \
|
||
|
|
( $(call depfile-new,$(2)) ))
|
||
|
|
|
||
|
|
# Execute the command and also postprocess generated .d dependencies file.
|
||
|
|
if_changed_dep = $(if $(strip $(any-prereq) $(arg-check)), \
|
||
|
|
@ ( $(echo-cmd) $(cmd_$(1)) ) && \
|
||
|
|
( $(depfile-add) ))
|
||
|
|
|
||
|
|
# Usage: $(call if_changed_rule,foo)
|
||
|
|
# Will check if $(cmd_foo) or any of the prerequisites changed,
|
||
|
|
# and if so will execute $(rule_foo).
|
||
|
|
if_changed_rule = $(if $(strip $(any-prereq) $(arg-check)), \
|
||
|
|
@ ( $(rule_$(1)) ) && \
|
||
|
|
( $(depfile-add) ))
|
||
|
|
|
||
|
|
###
|
||
|
|
# why - tell why a a target got build
|
||
|
|
# enabled by make V=2
|
||
|
|
# Output (listed in the order they are checked):
|
||
|
|
# (1) - due to target is PHONY
|
||
|
|
# (2) - due to target missing
|
||
|
|
# (3) - due to: file1.h file2.h
|
||
|
|
# (4) - due to command line change
|
||
|
|
# (5) - due to missing .cmd file
|
||
|
|
# (6) - due to target not in $(targets)
|
||
|
|
# (1) PHONY targets are always build
|
||
|
|
# (2) No target, so we better build it
|
||
|
|
# (3) Prerequisite is newer than target
|
||
|
|
# (4) The command line stored in the file named dir/.target.cmd
|
||
|
|
# differed from actual command line. This happens when compiler
|
||
|
|
# options changes
|
||
|
|
# (5) No dir/.target.d file (used to store command line)
|
||
|
|
# (6) No dir/.target.d file and target not listed in $(targets)
|
||
|
|
# This is a good hint that there is a bug in the kbuild file
|
||
|
|
ifeq ($(KBUILD_VERBOSE),2)
|
||
|
|
why = \
|
||
|
|
$(if $(filter $@, $(PHONY)),- due to target is PHONY, \
|
||
|
|
$(if $(wildcard $@), \
|
||
|
|
$(if $(strip $(any-prereq)),- due to: $(any-prereq), \
|
||
|
|
$(if $(arg-check), \
|
||
|
|
$(if $(cmd_$@),- due to command line change, \
|
||
|
|
$(if $(filter $@, $(targets)), \
|
||
|
|
- due to missing .d file, \
|
||
|
|
- due to $(notdir $@) not in $$(targets) \
|
||
|
|
) \
|
||
|
|
) \
|
||
|
|
) \
|
||
|
|
), \
|
||
|
|
- due to target missing \
|
||
|
|
) \
|
||
|
|
)
|
||
|
|
|
||
|
|
echo-why = $(call escchar, $(strip $(why)))
|
||
|
|
endif
|
||
|
|
|
||
|
|
endif # __INCLUDE_MK__
|