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Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x86 build updates from Ingo Molnar:
 "A build system fix and a cleanup"

* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  kbuild: Remove stale asm-generic wrappers
  kbuild, x86: Track generated headers with generated-y
This commit is contained in:
Linus Torvalds 2016-07-25 18:00:18 -07:00
commit 80f09cf5c1
3 changed files with 36 additions and 1 deletions
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17
scripts/Makefile.asm-generic
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@ -13,11 +13,26 @@ include scripts/Kbuild.include
# Create output directory if not already present
_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
# Stale wrappers when the corresponding files are removed from generic-y
# need removing.
generated-y := $(generic-y) $(genhdr-y) $(generated-y)
all-files := $(patsubst %, $(obj)/%, $(generated-y))
old-headers := $(wildcard $(obj)/*.h)
unwanted := $(filter-out $(all-files),$(old-headers))
quiet_cmd_wrap = WRAP $@
cmd_wrap = echo "\#include <asm-generic/$*.h>" >$@
all: $(patsubst %, $(obj)/%, $(generic-y))
quiet_cmd_remove = REMOVE $(unwanted)
cmd_remove = rm -f $(unwanted)
all: $(patsubst %, $(obj)/%, $(generic-y)) FORCE
$(if $(unwanted),$(call cmd,remove),)
@:
$(obj)/%.h:
$(call cmd,wrap)
PHONY += FORCE
.PHONY: $(PHONY)
FORCE: ;