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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-03-23 14:04:32 +0100 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-04-07 12:04:02 +0200 |
| commit | 833e622459432ed5bc7cc58ffadb91b59c863a3a (patch) | |
| tree | 75de2796fa5650bde6c3ec22b380ae955a927ee2 /scripts/Makefile.lib | |
| parent | kbuild: clean up *.lex.c and *.tab.[ch] patterns from top-level Makefile (diff) | |
| download | linux-833e622459432ed5bc7cc58ffadb91b59c863a3a.tar.xz linux-833e622459432ed5bc7cc58ffadb91b59c863a3a.zip | |
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>
Diffstat (limited to 'scripts/Makefile.lib')
| -rw-r--r-- | scripts/Makefile.lib | 24 |
1 files changed, 3 insertions, 21 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 45b9aa3ca39e..b1d938fab73b 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -184,14 +184,8 @@ endef 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 @@ $(filter %.lex.c,$(targets)): $(obj)/%.lex.c: $(src)/%.l FORCE 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 |