kbuild: move flex and bison rules to Makefile.host

[linux-block.git] / scripts / Makefile.host

diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index 2208ebbd8c4c02243fc6a9717110ac90450f25b8..b402c619147d9e18b6283f0f1ddb3acb47b2b99e 100644 (file)
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -1,4 +1,21 @@
 # SPDX-License-Identifier: GPL-2.0
+
+# LEX
+# ---------------------------------------------------------------------------
+quiet_cmd_flex = LEX     $@
+      cmd_flex = $(LEX) -o$@ -L $<
+
+$(obj)/%.lex.c: $(src)/%.l FORCE
+       $(call if_changed,flex)
+
+# YACC
+# ---------------------------------------------------------------------------
+quiet_cmd_bison = YACC    $(basename $@).[ch]
+      cmd_bison = $(YACC) -o $(basename $@).c --defines=$(basename $@).h -t -l $<
+
+$(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE
+       $(call if_changed,bison)
+
 # ==========================================================================
 # Building binaries on the host system
 # Binaries are used during the compilation of the kernel, for example