genksyms: generate lexer and parser during build instead of shipping
Now that the kernel build supports flex and bison, remove the _shipped
files and generate them during the build instead.
There are no more shipped lexer and parser, so I ripped off the rules
in scripts/Malefile.lib that were used for REGENERATE_PARSERS.
The genksyms parser has ambiguous grammar, which would emit warnings:
scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
They are normally suppressed, but displayed when W=1 is given.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 45b9aa3..b1d938f 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -184,14 +184,8 @@
quiet_cmd_flex = LEX $@
cmd_flex = $(LEX) -o$@ -L $<
-ifdef REGENERATE_PARSERS
-.PRECIOUS: $(src)/%.lex.c_shipped
-$(src)/%.lex.c_shipped: $(src)/%.l
- $(call cmd,flex)
-endif
-
.PRECIOUS: $(obj)/%.lex.c
-$(filter %.lex.c,$(targets)): $(obj)/%.lex.c: $(src)/%.l FORCE
+$(obj)/%.lex.c: $(src)/%.l FORCE
$(call if_changed,flex)
# YACC
@@ -199,27 +193,15 @@
quiet_cmd_bison = YACC $@
cmd_bison = $(YACC) -o$@ -t -l $<
-ifdef REGENERATE_PARSERS
-.PRECIOUS: $(src)/%.tab.c_shipped
-$(src)/%.tab.c_shipped: $(src)/%.y
- $(call cmd,bison)
-endif
-
.PRECIOUS: $(obj)/%.tab.c
-$(filter %.tab.c,$(targets)): $(obj)/%.tab.c: $(src)/%.y FORCE
+$(obj)/%.tab.c: $(src)/%.y FORCE
$(call if_changed,bison)
quiet_cmd_bison_h = YACC $@
cmd_bison_h = bison -o/dev/null --defines=$@ -t -l $<
-ifdef REGENERATE_PARSERS
-.PRECIOUS: $(src)/%.tab.h_shipped
-$(src)/%.tab.h_shipped: $(src)/%.y
- $(call cmd,bison_h)
-endif
-
.PRECIOUS: $(obj)/%.tab.h
-$(filter %.tab.h,$(targets)): $(obj)/%.tab.h: $(src)/%.y FORCE
+$(obj)/%.tab.h: $(src)/%.y FORCE
$(call if_changed,bison_h)
# Shipped files
