[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen master] libs/light: Rework generation of include/_libxl_*.h
commit 68d19cfb90a5bb6257e03be3f21c912bac7ec49b Author: Anthony PERARD <anthony.perard@xxxxxxxxxx> AuthorDate: Thu Oct 13 14:05:09 2022 +0100 Commit: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> CommitDate: Fri Oct 14 20:56:57 2022 +0100 libs/light: Rework generation of include/_libxl_*.h Instead of moving the public "_libxl_*.h" headers, we make a copy to the destination so that make doesn't try to remake the targets "_libxl_*.h" in libs/light/ again. A new .PRECIOUS target is added to tell make to not deletes the intermediate targets generated by "gentypes.py". Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Release-acked-by: Henry Wang <Henry.Wang@xxxxxxx> --- tools/libs/light/Makefile | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/tools/libs/light/Makefile b/tools/libs/light/Makefile index d84e5f3cd9..d681269229 100644 --- a/tools/libs/light/Makefile +++ b/tools/libs/light/Makefile @@ -215,6 +215,8 @@ libxl_internal_json.h: _libxl_types_internal_json.h $(OBJS-y) $(PIC_OBJS) $(LIBXL_TEST_OBJS) $(TEST_PROG_OBJS) $(SAVE_HELPER_OBJS): $(XEN_INCLUDE)/libxl.h $(OBJS-y) $(PIC_OBJS) $(LIBXL_TEST_OBJS): libxl_internal.h +# This exploits the 'multi-target pattern rule' trick. +# gentypes.py should be executed only once to make all the targets. _libxl_type%.h _libxl_type%_json.h _libxl_type%_private.h _libxl_type%.c: libxl_type%.idl gentypes.py idl.py $(eval stem = $(notdir $*)) $(PYTHON) gentypes.py libxl_type$(stem).idl __libxl_type$(stem).h __libxl_type$(stem)_private.h \ @@ -224,8 +226,10 @@ _libxl_type%.h _libxl_type%_json.h _libxl_type%_private.h _libxl_type%.c: libxl_ $(call move-if-changed,__libxl_type$(stem)_json.h,_libxl_type$(stem)_json.h) $(call move-if-changed,__libxl_type$(stem).c,_libxl_type$(stem).c) -$(XEN_INCLUDE)/_%.h: _%.h - $(call move-if-changed,_$*.h,$(XEN_INCLUDE)/_$*.h) +.PRECIOUS: _libxl_type%.h _libxl_type%.c + +$(XEN_INCLUDE)/_libxl_%.h: _libxl_%.h + cp -f $< $@ .PHONY: acpi acpi: -- generated by git-patchbot for /home/xen/git/xen.git#master
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