diff options
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 77cce68c4d63..8bdb1dc4072c 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -430,9 +430,7 @@ quiet_cmd_asn1_compiler = ASN.1 $@ cmd_asn1_compiler = $(objtree)/scripts/asn1_compiler $< \ $(subst .h,.c,$@) $(subst .c,.h,$@) -.PRECIOUS: $(objtree)/$(obj)/%-asn1.c $(objtree)/$(obj)/%-asn1.h - -$(obj)/%-asn1.c $(obj)/%-asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler +$(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler $(call cmd,asn1_compiler) # Build the compiled-in targets @@ -538,6 +536,21 @@ $(call multi_depend, $(multi-used-m), .o, -objs -y -m) targets += $(multi-used-m) targets := $(filter-out $(PHONY), $(targets)) +# Add intermediate targets: +# When building objects with specific suffix patterns, add intermediate +# targets that the final targets are derived from. +intermediate_targets = $(foreach sfx, $(2), \ + $(patsubst %$(strip $(1)),%$(sfx), \ + $(filter %$(strip $(1)), $(targets)))) +# %.asn1.o <- %.asn1.[ch] <- %.asn1 +# %.dtb.o <- %.dtb.S <- %.dtb <- %.dts +# %.lex.o <- %.lex.c <- %.l +# %.tab.o <- %.tab.[ch] <- %.y +targets += $(call intermediate_targets, .asn1.o, .asn1.c .asn1.h) \ + $(call intermediate_targets, .dtb.o, .dtb.S .dtb) \ + $(call intermediate_targets, .lex.o, .lex.c) \ + $(call intermediate_targets, .tab.o, .tab.c .tab.h) + # Descending # --------------------------------------------------------------------------- @@ -574,6 +587,10 @@ $(shell mkdir -p $(obj-dirs)) endif endif +# Some files contained in $(targets) are intermediate artifacts. +# We never want them to be removed automatically. +.SECONDARY: $(targets) + # Declare the contents of the .PHONY variable as phony. We keep that # information in a variable se we can use it in if_changed and friends. |