X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=scripts%2FKbuild.include;h=0168d6c37075dd46b4b5bd090ac7c85fb153ce60;hb=987b0145d94eecf292d8b301228356f44611ab7c;hp=b0d067be739056089fbb09a357bbacc5c0daf6b4;hpb=f7ed79d23a47594e7834d66a8f14449796d4f3e6;p=linux-2.6.git diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index b0d067be7..0168d6c37 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -44,56 +44,15 @@ define filechk fi endef -###### -# gcc support functions -# See documentation in Documentation/kbuild/makefiles.txt - -# as-option -# Usage: cflags-y += $(call as-option, -Wa$(comma)-isa=foo,) - -as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \ - -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \ - else echo "$(2)"; fi ;) - -# cc-option -# Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586) - -cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ - > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;) - -# cc-option-yn -# Usage: flag := $(call cc-option-yn, -march=winchip-c6) -cc-option-yn = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ - > /dev/null 2>&1; then echo "y"; else echo "n"; fi;) - -# cc-option-align -# Prefix align with either -falign or -malign -cc-option-align = $(subst -functions=0,,\ - $(call cc-option,-falign-functions=0,-malign-functions=0)) - -# cc-version -# Usage gcc-ver := $(call cc-version, $(CC)) -cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh \ - $(if $(1), $(1), $(CC))) - -# cc-ifversion -# Usage: EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1) -cc-ifversion = $(shell if [ $(call cc-version, $(CC)) $(1) $(2) ]; then \ - echo $(3); fi;) - ### # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj= # Usage: # $(Q)$(MAKE) $(build)=dir build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj -# Prefix -I with $(srctree) if it is not an absolute path -addtree = $(if $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1) -# Find all -I options and call addtree -flags = $(foreach o,$($(1)),$(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o))) - # If quiet is set, only print short version of command -cmd = @$(echo-cmd) $(cmd_$(1)) +cmd = @$(if $($(quiet)cmd_$(1)),\ + echo ' $(call escsq,$($(quiet)cmd_$(1)))' &&) $(cmd_$(1)) # Add $(obj)/ for paths that is not absolute objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o))) @@ -116,33 +75,30 @@ endif echo-cmd = $(if $($(quiet)cmd_$(1)), \ echo ' $(call escsq,$($(quiet)cmd_$(1)))';) -make-cmd = $(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))) - # function to only execute the passed command if necessary # >'< substitution is for echo to work, >$< substitution to preserve $ when reloading .cmd file # note: when using inline perl scripts [perl -e '...$$t=1;...'] in $(cmd_xxx) double $$ your perl vars -# -if_changed = $(if $(strip $(filter-out $(PHONY),$?) \ - $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ +# +if_changed = $(if $(strip $? $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ @set -e; \ - $(echo-cmd) $(cmd_$(1)); \ - echo 'cmd_$@ := $(make-cmd)' > $(@D)/.$(@F).cmd) + $(echo-cmd) \ + $(cmd_$(1)); \ + echo 'cmd_$@ := $(subst $$,$$$$,$(call escsq,$(cmd_$(1))))' > $(@D)/.$(@F).cmd) # execute the command and also postprocess generated .d dependencies # file -if_changed_dep = $(if $(strip $(filter-out $(PHONY),$?) \ - $(filter-out FORCE $(wildcard $^),$^) \ - $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ +if_changed_dep = $(if $(strip $? $(filter-out FORCE $(wildcard $^),$^)\ + $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ), \ @set -e; \ - $(echo-cmd) $(cmd_$(1)); \ - scripts/basic/fixdep $(depfile) $@ '$(make-cmd)' > $(@D)/.$(@F).tmp; \ + $(echo-cmd) \ + $(cmd_$(1)); \ + scripts/basic/fixdep $(depfile) $@ '$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))' > $(@D)/.$(@F).tmp; \ rm -f $(depfile); \ mv -f $(@D)/.$(@F).tmp $(@D)/.$(@F).cmd) # Usage: $(call if_changed_rule,foo) # will check if $(cmd_foo) changed, or any of the prequisites changed, # and if so will execute $(rule_foo) -if_changed_rule = $(if $(strip $(filter-out $(PHONY),$?) \ - $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ),\ +if_changed_rule = $(if $(strip $? $(call arg-check, $(cmd_$(1)), $(cmd_$@)) ),\ @set -e; \ $(rule_$(1)))