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Diffstat (limited to 'scripts/genksyms/Makefile')
| -rw-r--r-- | scripts/genksyms/Makefile | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/scripts/genksyms/Makefile b/scripts/genksyms/Makefile new file mode 100644 index 0000000000..d6a422a63b --- /dev/null +++ b/scripts/genksyms/Makefile @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: GPL-2.0 + +hostprogs-always-y += genksyms + +genksyms-objs := genksyms.o parse.tab.o lex.lex.o + +# FIXME: fix the ambiguous grammar in parse.y and delete this hack +# +# Suppress shift/reduce, reduce/reduce conflicts warnings +# unless W=1 is specified. +# +# Just in case, run "$(YACC) --version" without suppressing stderr +# so that 'bison: not found' will be displayed if it is missing. +ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),) + +quiet_cmd_bison_no_warn = $(quiet_cmd_bison) + cmd_bison_no_warn = $(YACC) --version >/dev/null; \ + $(cmd_bison) 2>/dev/null + +$(obj)/pars%.tab.c $(obj)/pars%.tab.h: $(src)/pars%.y FORCE + $(call if_changed,bison_no_warn) + +endif + +# -I needed for generated C source to include headers in source tree +HOSTCFLAGS_parse.tab.o := -I $(srctree)/$(src) +HOSTCFLAGS_lex.lex.o := -I $(srctree)/$(src) + +# dependencies on generated files need to be listed explicitly +$(obj)/lex.lex.o: $(obj)/parse.tab.h |