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authorLinus Torvalds <torvalds@linux-foundation.org>2016-07-26 04:00:18 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-26 04:00:18 +0300
commit80f09cf5c14017f98c2e2eaea49ad5d2f5a1399f (patch)
tree7a249d8140addd38ef17de655e427e6892674a8f /scripts
parent77cd3d0c43b7e6c0bb49ca641cf936891f6e1766 (diff)
parentcda2c65f981d0c29805fd01ffce441c650ffe6cf (diff)
downloadlinux-80f09cf5c14017f98c2e2eaea49ad5d2f5a1399f.tar.xz
Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
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
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Makefile.asm-generic17
1 files changed, 16 insertions, 1 deletions
diff --git a/scripts/Makefile.asm-generic b/scripts/Makefile.asm-generic
index 045e0098e962..e4d017d53819 100644
--- a/scripts/Makefile.asm-generic
+++ b/scripts/Makefile.asm-generic
@@ -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: ;