Switches to a more portable set of flags for generating the same file
names instead of the bison-specific --defines, uses the more portable -V
instead of --version, and explicitly defines YYSTYPE in lex.l, which
bison implicitly defines if not present but byacc does not.
Add %locations to dtc-parser.y to explicitly enable location tracking
for byacc, and define YYERROR_CALL explicitly to prevent the locations
directive from causing it to be defined to a 2-parameter call to
yyerror, which dtc-parser.y defines to accept one parameter.
Requires byacc to be built with --enable-btyacc.
Signed-off-by: Ethan Sommer <e5ten.arch@xxxxxxxxx>
---
scripts/Makefile.host | 2 +-
scripts/dtc/dtc-parser.y | 4 ++++
scripts/genksyms/Makefile | 2 +-
scripts/genksyms/lex.l | 2 ++
4 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index 4c51c95d40f4..64e98e1d4825 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -11,7 +11,7 @@ $(obj)/%.lex.c: $(src)/%.l FORCE
# YACC
# ---------------------------------------------------------------------------
quiet_cmd_bison = YACC $(basename $@).[ch]
- cmd_bison = $(YACC) -o $(basename $@).c --defines=$(basename $@).h -t -l $<
+ cmd_bison = $(YACC) -b $(basename $(basename $@)) -d -t -l $<
$(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE
$(call if_changed,bison)
diff --git a/scripts/dtc/dtc-parser.y b/scripts/dtc/dtc-parser.y
index 2ed4dc1f07fd..40dcf4f149da 100644
--- a/scripts/dtc/dtc-parser.y
+++ b/scripts/dtc/dtc-parser.y
@@ -2,6 +2,8 @@
/*
* (C) Copyright David Gibson <dwg@xxxxxxxxxxx>, IBM Corporation. 2005.
*/
+%locations
+
%{
#include <stdio.h>
#include <inttypes.h>
@@ -17,6 +19,8 @@ extern void yyerror(char const *s);
treesource_error = true; \
} while (0)
+#define YYERROR_CALL(msg) yyerror(msg)
+
extern struct dt_info *parser_output;
extern bool treesource_error;
%}
diff --git a/scripts/genksyms/Makefile b/scripts/genksyms/Makefile
index 78629f515e78..397c2dc8182b 100644
--- a/scripts/genksyms/Makefile
+++ b/scripts/genksyms/Makefile
@@ -15,7 +15,7 @@ genksyms-objs := genksyms.o parse.tab.o lex.lex.o
ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
quiet_cmd_bison_no_warn = $(quiet_cmd_bison)
- cmd_bison_no_warn = $(YACC) --version >/dev/null; \
+ cmd_bison_no_warn = $(YACC) -V >/dev/null; \
$(cmd_bison) 2>/dev/null
$(obj)/pars%.tab.c $(obj)/pars%.tab.h: $(src)/pars%.y FORCE
diff --git a/scripts/genksyms/lex.l b/scripts/genksyms/lex.l
index e265c5d96861..0580c088527f 100644
--- a/scripts/genksyms/lex.l
+++ b/scripts/genksyms/lex.l
@@ -19,6 +19,8 @@
#include "genksyms.h"
#include "parse.tab.h"
+extern YYSTYPE yylval;
+
/* We've got a two-level lexer here. We let flex do basic tokenization
and then we categorize those basic tokens in the second stage. */
#define YY_DECL static int yylex1(void)
--
2.23.0
