--- zzzz-none-000/linux-3.10.107/scripts/Kbuild.include 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/scripts/Kbuild.include 2021-02-04 17:41:59.000000000 +0000 @@ -3,6 +3,7 @@ # Convenient variables comma := , +quote := " squote := ' empty := space := $(empty) $(empty) @@ -127,18 +128,20 @@ cc-disable-warning = $(call try-run,\ $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1))) +# cc-name +# Expands to either gcc or clang +cc-name = $(shell $(CC) -v 2>&1 | grep -q "clang version" && echo clang || echo gcc) + # cc-version -# Usage gcc-ver := $(call cc-version) cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC)) # cc-fullversion -# Usage gcc-ver := $(call cc-fullversion) cc-fullversion = $(shell $(CONFIG_SHELL) \ $(srctree)/scripts/gcc-version.sh -p $(CC)) # cc-ifversion # Usage: EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1) -cc-ifversion = $(shell [ $(call cc-version, $(CC)) $(1) $(2) ] && echo $(3)) +cc-ifversion = $(shell [ $(cc-version) $(1) $(2) ] && echo $(3) || echo $(4)) # cc-ldoption # Usage: ldflags += $(call cc-ldoption, -Wl$(comma)--hash-style=both) @@ -155,19 +158,45 @@ # Important: no spaces around options ar-option = $(call try-run, $(AR) rc$(1) "$$TMP",$(1),$(2)) +# ld-version +# Note this is mainly for HJ Lu's 3 number binutil versions +ld-version = $(shell $(LD) --version | $(srctree)/scripts/ld-version.sh) + +# ld-ifversion +# Usage: $(call ld-ifversion, -ge, 22252, y) +ld-ifversion = $(shell [ $(ld-version) $(1) $(2) ] && echo $(3) || echo $(4)) + ###### ### # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj= # Usage: # $(Q)$(MAKE) $(build)=dir -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj +build := -f $(srctree)/scripts/Makefile.build obj ### # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.modbuiltin obj= # Usage: # $(Q)$(MAKE) $(modbuiltin)=dir -modbuiltin := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.modbuiltin obj +modbuiltin := -f $(srctree)/scripts/Makefile.modbuiltin obj + +### +# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.dtbinst obj= +# Usage: +# $(Q)$(MAKE) $(dtbinst)=dir +dtbinst := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.dtbinst obj + +### +# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj= +# Usage: +# $(Q)$(MAKE) $(clean)=dir +clean := -f $(srctree)/scripts/Makefile.clean obj + +### +# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.headersinst obj= +# Usage: +# $(Q)$(MAKE) $(hdr-inst)=dir +hdr-inst := -f $(srctree)/scripts/Makefile.headersinst obj # Prefix -I with $(srctree) if it is not an absolute path. # skip if -I has no parameter @@ -205,11 +234,13 @@ arg-check = $(if $(strip $(cmd_$@)),,1) endif -# >'< substitution is for echo to work, -# >$< substitution to preserve $ when reloading .cmd file -# note: when using inline perl scripts [perl -e '...$$t=1;...'] -# in $(cmd_xxx) double $$ your perl vars -make-cmd = $(subst \\,\\\\,$(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1)))))) +# Replace >$< with >$$< 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 = $(call escsq,$(subst \#,\\\#,$(subst $$,$$$$,$(cmd_$(1))))) # Find any prerequisites that is newer than target or that does not exist. # PHONY targets skipped in both cases. @@ -220,7 +251,7 @@ if_changed = $(if $(strip $(any-prereq) $(arg-check)), \ @set -e; \ $(echo-cmd) $(cmd_$(1)); \ - echo 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd) + printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd) # Execute the command and also postprocess generated .d dependencies file. if_changed_dep = $(if $(strip $(any-prereq) $(arg-check) ), \ @@ -276,3 +307,54 @@ echo-why = $(call escsq, $(strip $(why))) endif + +############################################################################### +# +# When a Kconfig string contains a filename, it is suitable for +# passing to shell commands. It is surrounded by double-quotes, and +# any double-quotes or backslashes within it are escaped by +# backslashes. +# +# This is no use for dependencies or $(wildcard). We need to strip the +# surrounding quotes and the escaping from quotes and backslashes, and +# we *do* need to escape any spaces in the string. So, for example: +# +# Usage: $(eval $(call config_filename,FOO)) +# +# Defines FOO_FILENAME based on the contents of the CONFIG_FOO option, +# transformed as described above to be suitable for use within the +# makefile. +# +# Also, if the filename is a relative filename and exists in the source +# tree but not the build tree, define FOO_SRCPREFIX as $(srctree)/ to +# be prefixed to *both* command invocation and dependencies. +# +# Note: We also print the filenames in the quiet_cmd_foo text, and +# perhaps ought to have a version specially escaped for that purpose. +# But it's only cosmetic, and $(patsubst "%",%,$(CONFIG_FOO)) is good +# enough. It'll strip the quotes in the common case where there's no +# space and it's a simple filename, and it'll retain the quotes when +# there's a space. There are some esoteric cases in which it'll print +# the wrong thing, but we don't really care. The actual dependencies +# and commands *do* get it right, with various combinations of single +# and double quotes, backslashes and spaces in the filenames. +# +############################################################################### +# +space_escape := %%%SPACE%%% +# +define config_filename +ifneq ($$(CONFIG_$(1)),"") +$(1)_FILENAME := $$(subst \\,\,$$(subst \$$(quote),$$(quote),$$(subst $$(space_escape),\$$(space),$$(patsubst "%",%,$$(subst $$(space),$$(space_escape),$$(CONFIG_$(1))))))) +ifneq ($$(patsubst /%,%,$$(firstword $$($(1)_FILENAME))),$$(firstword $$($(1)_FILENAME))) +else +ifeq ($$(wildcard $$($(1)_FILENAME)),) +ifneq ($$(wildcard $$(srctree)/$$($(1)_FILENAME)),) +$(1)_SRCPREFIX := $(srctree)/ +endif +endif +endif +endif +endef +# +###############################################################################