| # SPDX-License-Identifier: GPL-2.0 |
| |
| hostprogs-y := genksyms |
| always := $(hostprogs-y) |
| |
| genksyms-objs := genksyms.o parse.tab.o lex.lex.o |
| |
| # FIXME: fix the ambiguous grammar in parse.y and delete this hack |
| # |
| # Suppress shift/reduce, reduce/reduce conflicts warnings |
| # unless W=1 is specified. |
| # |
| # Just in case, run "$(YACC) --version" without suppressing stderr |
| # so that 'bison: not found' will be displayed if it is missing. |
| ifeq ($(findstring 1,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),) |
| |
| quiet_cmd_bison_no_warn = $(quiet_cmd_bison) |
| cmd_bison_no_warn = $(YACC) --version >/dev/null; \ |
| $(cmd_bison) 2>/dev/null |
| |
| $(obj)/parse.tab.c: $(src)/parse.y FORCE |
| $(call if_changed,bison_no_warn) |
| |
| quiet_cmd_bison_h_no_warn = $(quiet_cmd_bison_h) |
| cmd_bison_h_no_warn = $(YACC) --version >/dev/null; \ |
| $(cmd_bison_h) 2>/dev/null |
| |
| $(obj)/parse.tab.h: $(src)/parse.y FORCE |
| $(call if_changed,bison_h_no_warn) |
| |
| endif |
| |
| # -I needed for generated C source (shipped source) |
| HOSTCFLAGS_parse.tab.o := -I$(src) |
| HOSTCFLAGS_lex.lex.o := -I$(src) |
| |
| # dependencies on generated files need to be listed explicitly |
| $(obj)/lex.lex.o: $(obj)/parse.tab.h |
