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Commit 73a4f6db authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kbuild: add LEX and YACC variables 



Allow users to use their favorite lexer / parser generators.
This is useful for me to test various flex and bison versions.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent e3b03bf2

Makefile

+3 −1
Original line number Diff line number Diff line
@@ -377,6 +377,8 @@ NM = $(CROSS_COMPILE)nm 
STRIP		= $(CROSS_COMPILE)strip

OBJCOPY		= $(CROSS_COMPILE)objcopy

OBJDUMP		= $(CROSS_COMPILE)objdump

LEX		= flex

YACC		= bison

AWK		= awk

GENKSYMS	= scripts/genksyms/genksyms

INSTALLKERNEL  := installkernel
@@ -428,7 +430,7 @@ GCC_PLUGINS_CFLAGS := 


export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC

export CPP AR NM STRIP OBJCOPY OBJDUMP HOSTLDFLAGS HOST_LOADLIBES

export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE

export MAKE LEX YACC AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE

export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS



export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS

scripts/Makefile.lib

+2 −2
Original line number Diff line number Diff line
@@ -193,7 +193,7 @@ ifdef REGENERATE_PARSERS 
LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy)



quiet_cmd_flex = LEX     $@

      cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $<

      cmd_flex = $(LEX) -o$@ -L -P $(LEX_PREFIX) $<



.PRECIOUS: $(src)/%.lex.c_shipped

$(src)/%.lex.c_shipped: $(src)/%.l
@@ -204,7 +204,7 @@ $(src)/%.lex.c_shipped: $(src)/%.l 
YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy)



quiet_cmd_bison = YACC    $@

      cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $<

      cmd_bison = $(YACC) -o$@ -t -l -p $(YACC_PREFIX) $<



.PRECIOUS: $(src)/%.tab.c_shipped

$(src)/%.tab.c_shipped: $(src)/%.y