From af6c23be63d14860c8c1f0d9fcbc020f7c11d84d Mon Sep 17 00:00:00 2001
From: Stefan Reinauer <reinauer@chromium.org>
Date: Thu, 20 Aug 2015 11:19:34 -0700
Subject: [PATCH] kconfig: Allow KCONFIG_STRICT outside of confdata.c

To catch dependency errors in symbol.c (such as the ones
fixed by I51b4ee326f082c6a656a813ee5772e9c34f5c343) we need
to check for global kconfig warnings before saving config
files.

This patch will produce errors for wrong dependencies and
add catching of errors to conf, nconf and mconf. Sorry,
gconf users, you will have to wait.

Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
---
 util/kconfig/conf.c     | 10 ++++++++++
 util/kconfig/confdata.c |  6 +-----
 util/kconfig/lkc.h      |  3 +++
 util/kconfig/mconf.c    | 10 ++++++++++
 util/kconfig/nconf.c    | 13 +++++++++++++
 util/kconfig/qconf.cc   |  2 ++
 util/kconfig/symbol.c   |  1 +
 7 files changed, 40 insertions(+), 5 deletions(-)

Index: kconfig/conf.c
===================================================================
--- kconfig.orig/conf.c
+++ kconfig/conf.c
@@ -16,6 +16,8 @@
 
 #include "lkc.h"
 
+int kconfig_warnings = 0;
+
 static void conf(struct menu *menu);
 static void check_conf(struct menu *menu);
 
@@ -721,6 +723,7 @@ int main(int ac, char **av)
 	const char *progname = av[0];
 	int opt;
 	const char *name, *defconfig_file = NULL /* gcc uninit */;
+	char *env;
 	int no_conf_write = 0;
 
 	tty_stdio = isatty(0) && isatty(1);
@@ -827,6 +830,13 @@ int main(int ac, char **av)
 		break;
 	}
 
+	env = getenv("KCONFIG_STRICT");
+	if (env && *env && kconfig_warnings) {
+		fprintf(stderr, "\n*** ERROR: %d warnings encountered, and "
+			"warnings are errors.\n\n", kconfig_warnings);
+		exit(1);
+	}
+
 	if (sync_kconfig) {
 		name = getenv("KCONFIG_NOSILENTUPDATE");
 		if (name && *name) {
Index: kconfig/confdata.c
===================================================================
--- kconfig.orig/confdata.c
+++ kconfig/confdata.c
@@ -528,11 +528,7 @@ load:
 	free(line);
 	fclose(in);
 
-	name = getenv("KCONFIG_STRICT");
-	if (name && *name && conf_warnings) {
-		fprintf(stderr, "\nERROR: %d warnings encountered, and warnings are errors.\n\n", conf_warnings);
-		return 1;
-	}
+	kconfig_warnings += conf_warnings;
 
 	return 0;
 }
Index: kconfig/lkc.h
===================================================================
--- kconfig.orig/lkc.h
+++ kconfig/lkc.h
@@ -39,6 +39,9 @@ void zconf_nextfile(const char *name);
 int zconf_lineno(void);
 const char *zconf_curname(void);
 
+/* conf.c */
+extern int kconfig_warnings;
+
 /* confdata.c */
 const char *conf_get_configname(void);
 void set_all_choice_values(struct symbol *csym);
Index: kconfig/mconf.c
===================================================================
--- kconfig.orig/mconf.c
+++ kconfig/mconf.c
@@ -24,6 +24,8 @@
 
 #define JUMP_NB			9
 
+int kconfig_warnings = 0;
+
 static const char mconf_readme[] =
 "Overview\n"
 "--------\n"
@@ -948,6 +950,7 @@ static void conf_save(void)
 static int handle_exit(void)
 {
 	int res;
+	char *env;
 
 	save_and_exit = 1;
 	reset_subtitle();
@@ -962,6 +965,13 @@ static int handle_exit(void)
 
 	end_dialog(saved_x, saved_y);
 
+	env = getenv("KCONFIG_STRICT");
+	if (env && *env && kconfig_warnings) {
+		fprintf(stderr, "\n*** ERROR: %d warnings encountered, and "
+			"warnings are errors.\n\n", kconfig_warnings);
+		res = 2;
+	}
+
 	switch (res) {
 	case 0:
 		if (conf_write(filename)) {
Index: kconfig/nconf.c
===================================================================
--- kconfig.orig/nconf.c
+++ kconfig/nconf.c
@@ -15,6 +15,8 @@
 #include "nconf.h"
 #include <ctype.h>
 
+int kconfig_warnings = 0;
+
 static const char nconf_global_help[] =
 "Help windows\n"
 "------------\n"
@@ -645,6 +647,8 @@ static void set_config_filename(const ch
 static int do_exit(void)
 {
 	int res;
+	char *env;
+
 	if (!conf_get_changed()) {
 		global_exit = 1;
 		return 0;
@@ -660,6 +664,15 @@ static int do_exit(void)
 		return -1;
 	}
 
+	env = getenv("KCONFIG_STRICT");
+	if (env && *env && kconfig_warnings) {
+		btn_dialog(main_window,
+			"\nWarnings encountered, and warnings are errors.\n\n",
+			1,
+			"<OK>");
+		res = 2;
+	}
+
 	/* if we got here, the user really wants to exit */
 	switch (res) {
 	case 0:
Index: kconfig/qconf.cc
===================================================================
--- kconfig.orig/qconf.cc
+++ kconfig/qconf.cc
@@ -26,6 +26,8 @@
 #include "images.h"
 
 
+int kconfig_warnings = 0;
+
 static QApplication *configApp;
 static ConfigSettings *configSettings;
 
Index: kconfig/symbol.c
===================================================================
--- kconfig.orig/symbol.c
+++ kconfig/symbol.c
@@ -319,6 +319,7 @@ static void sym_warn_unmet_dep(struct sy
 			       "  Selected by [m]:\n");
 
 	fputs(str_get(&gs), stderr);
+	kconfig_warnings++;
 }
 
 void sym_calc_value(struct symbol *sym)