1 files changed, 27 insertions, 0 deletions

diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
index 56aa1f0bad04..5ee58eeb9a7d 100644
--- a/scripts/kconfig/preprocess.c
+++ b/scripts/kconfig/preprocess.c
@@ -106,6 +106,21 @@ struct function {
         char *(*func)(int argc, char *argv[]);
 };
 
+static char *do_error_if(int argc, char *argv[])
+{
+        if (!strcmp(argv[0], "y"))
+                pperror("%s", argv[1]);
+
+        return NULL;
+}
+
+static char *do_info(int argc, char *argv[])
+{
+        printf("%s\n", argv[0]);
+
+        return xstrdup("");
+}
+
 static char *do_shell(int argc, char *argv[])
 {
         FILE *p;
@@ -146,9 +161,21 @@ static char *do_shell(int argc, char *argv[])
         return xstrdup(buf);
 }
 
+static char *do_warning_if(int argc, char *argv[])
+{
+        if (!strcmp(argv[0], "y"))
+                fprintf(stderr, "%s:%d: %s\n",
+                        current_file->name, yylineno, argv[1]);
+
+        return xstrdup("");
+}
+
 static const struct function function_table[] = {
         /* Name         MIN     MAX     Function */
+        { "error-if",   2,      2,      do_error_if },
+        { "info",       1,      1,      do_info },
         { "shell",      1,      1,      do_shell },
+        { "warning-if", 2,      2,      do_warning_if },
 };
 
 #define FUNCTION_MAX_ARGS               16