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authorMasahiro Yamada <yamada.masahiro@socionext.com>2018-12-30 22:59:26 +0900
committerSascha Hauer <s.hauer@pengutronix.de>2019-01-03 10:17:16 +0100
commit273dbe5f87de8d6129a68ad40e87922fb6e783b6 (patch)
tree41f19d7c159df88aa1dee4bff084f3e57dfc18db /Makefile
parentc17116dc3818b45cbc3997de72d05e64aab04cbe (diff)
downloadbarebox-273dbe5f87de8d6129a68ad40e87922fb6e783b6.tar.gz
kbuild: generate lexer and parser during build instead of shipping
Recent kernel versions run flex and bison to generate lexers and parsers from real source files such as *.l and *.y . This provides better maintainability than version-controlling pre-generated C files with a "_shipped" suffix. This commit imports flex and bison rules from Linux, and deletes pre-generated parsers and lexers. Refer to the following commits in Linux: - 033dba2ec06c ("kbuild: prepare to remove C files pre-generated by flex and bison") - 29c833061c1d ("kconfig: generate lexer and parser during build instead of shipping") - e039139be8c2 ("scripts/dtc: generate lexer and parser during build instead of shipping") Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile3
1 files changed, 3 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 1f4baa6..b014341 100644
--- a/Makefile
+++ b/Makefile
@@ -277,6 +277,8 @@ 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
DEPMOD = /sbin/depmod
@@ -322,6 +324,7 @@ KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE
+export LEX YACC
export HOSTCXX HOSTCXXFLAGS HOSTLDFLAGS HOST_LOADLIBES LDFLAGS_MODULE CHECK CHECKFLAGS
export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS