kconfig: call env_write_dep() right after yyparse()

This allows preprocess.c to free up all of its resources when the parse
stage is finished. It also ensures conf_write_autoconf_cmd() produces
consistent results even if called multiple times for any reason.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/scripts/kconfig/parser.y b/scripts/kconfig/parser.y
index 611038c502fc..cfb82ba09037 100644
--- a/scripts/kconfig/parser.y
+++ b/scripts/kconfig/parser.y
@@ -482,7 +482,7 @@ void conf_parse(const char *name)
 
 	autoconf_cmd = str_new();
 
-	str_printf(&autoconf_cmd, "deps_config := \\\n");
+	str_printf(&autoconf_cmd, "\ndeps_config := \\\n");
 
 	zconf_initscan(name);
 
@@ -492,6 +492,13 @@ void conf_parse(const char *name)
 		yydebug = 1;
 	yyparse();
 
+	str_printf(&autoconf_cmd,
+		   "\n"
+		   "$(autoconfig): $(deps_config)\n"
+		   "$(deps_config): ;\n");
+
+	env_write_dep(&autoconf_cmd);
+
 	/* Variables are expanded in the parse phase. We can free them here. */
 	variable_all_del();