1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 2
3 hostprogs-always-y += genksyms !! 3 hostprogs-y := genksyms
>> 4 always := $(hostprogs-y)
4 5
5 genksyms-objs := genksyms.o parse.tab.o lex. 6 genksyms-objs := genksyms.o parse.tab.o lex.lex.o
6 7
7 # FIXME: fix the ambiguous grammar in parse.y 8 # FIXME: fix the ambiguous grammar in parse.y and delete this hack
8 # 9 #
9 # Suppress shift/reduce, reduce/reduce conflic 10 # Suppress shift/reduce, reduce/reduce conflicts warnings
10 # unless W=1 is specified. 11 # unless W=1 is specified.
11 # 12 #
12 # Just in case, run "$(YACC) --version" withou 13 # Just in case, run "$(YACC) --version" without suppressing stderr
13 # so that 'bison: not found' will be displayed 14 # so that 'bison: not found' will be displayed if it is missing.
14 ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),) !! 15 ifeq ($(findstring 1,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),)
15 16
16 quiet_cmd_bison_no_warn = $(quiet_cmd_bison) 17 quiet_cmd_bison_no_warn = $(quiet_cmd_bison)
17 cmd_bison_no_warn = $(YACC) --version >/ 18 cmd_bison_no_warn = $(YACC) --version >/dev/null; \
18 $(cmd_bison) 2>/dev/ 19 $(cmd_bison) 2>/dev/null
19 20
20 $(obj)/pars%.tab.c $(obj)/pars%.tab.h: $(src)/ !! 21 $(obj)/parse.tab.c: $(src)/parse.y FORCE
21 $(call if_changed,bison_no_warn) 22 $(call if_changed,bison_no_warn)
22 23
>> 24 quiet_cmd_bison_h_no_warn = $(quiet_cmd_bison_h)
>> 25 cmd_bison_h_no_warn = $(YACC) --version >/dev/null; \
>> 26 $(cmd_bison_h) 2>/dev/null
>> 27
>> 28 $(obj)/parse.tab.h: $(src)/parse.y FORCE
>> 29 $(call if_changed,bison_h_no_warn)
>> 30
23 endif 31 endif
24 32
25 # -I needed for generated C source to include !! 33 # -I needed for generated C source (shipped source)
26 HOSTCFLAGS_parse.tab.o := -I $(src) !! 34 HOSTCFLAGS_parse.tab.o := -I$(src)
27 HOSTCFLAGS_lex.lex.o := -I $(src) !! 35 HOSTCFLAGS_lex.lex.o := -I$(src)
28 36
29 # dependencies on generated files need to be l 37 # dependencies on generated files need to be listed explicitly
30 $(obj)/lex.lex.o: $(obj)/parse.tab.h 38 $(obj)/lex.lex.o: $(obj)/parse.tab.h
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