From 73a4f6dbe70a1b93c11e2d1d6ca68f3522daf434 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sun, 10 Dec 2017 01:02:28 +0900 Subject: [PATCH] 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: Masahiro Yamada --- Makefile | 4 +++- scripts/Makefile.lib | 4 ++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index c988e46a53cd..83209d697678 100644 --- a/Makefile +++ b/Makefile @@ -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 diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 1ca4dcd2d500..ee528e30f80f 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -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