kbuild: prevent make from deleting _shipped files (58238c81) · Commits · 戴 / test

commit (kbuild: add implicit rules for parser generation) created a implicit rule chain (%.c: %.c_shipped: %.y). Make considers the _shipped files to be intermediate files which causes them to be deleted if they didn't exist before make was run. Mark the _shipped files PRECIOUS to prevent make from deleting them. Signed-off-by:

Peter Foley <pefoley2@verizon.net> Acked-by:

Arnaud Lacombe <lacombar@gmail.com> Signed-off-by:

Michal Marek <mmarek@suse.cz>

scripts/Makefile.lib

+4 −0

Original line number	Diff line number	Diff line
		@@ -167,6 +167,7 @@ ifdef REGENERATE_PARSERS
		quiet_cmd_gperf = GPERF $@
		cmd_gperf = gperf -t --output-file $@ -a -C -E -g -k 1,3,$$ -p -t $<

		.PRECIOUS: $(src)/%.hash.c_shipped
		$(src)/%.hash.c_shipped: $(src)/%.gperf
		$(call cmd,gperf)

		@@ -177,6 +178,7 @@ LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy)
		quiet_cmd_flex = LEX $@
		cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $<

		.PRECIOUS: $(src)/%.lex.c_shipped
		$(src)/%.lex.c_shipped: $(src)/%.l
		$(call cmd,flex)

		@@ -187,12 +189,14 @@ YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy)
		quiet_cmd_bison = YACC $@
		cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $<

		.PRECIOUS: $(src)/%.tab.c_shipped
		$(src)/%.tab.c_shipped: $(src)/%.y
		$(call cmd,bison)

		quiet_cmd_bison_h = YACC $@
		cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $<

		.PRECIOUS: $(src)/%.tab.h_shipped
		$(src)/%.tab.h_shipped: $(src)/%.y
		$(call cmd,bison_h)

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