[PATCH v4 15/31] kconfig: add 'info', 'warning', and 'error' built-in functions

Masahiro Yamada
2018-05-17T06:19:16Z

Add 'info', 'warning', and 'error' functions as in Make.

They print messages during parsing Kconfig files. 'error' will be
useful to terminate the parsing immediately in fatal cases.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

Changes in v4:
- Add 'error' function

Changes in v3: None
Changes in v2: None

scripts/kconfig/preprocess.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/scripts/kconfig/preprocess.c b/scripts/kconfig/preprocess.c
index 47b32dc..591bcf7 100644
--- a/scripts/kconfig/preprocess.c
+++ b/scripts/kconfig/preprocess.c
@@ -104,6 +104,20 @@ struct function {
char *(*func)(int argc, char *argv[], int old_argc, char *old_argv[]);
};

+static char *do_error(int argc, char *argv[], int old_argc, char *old_argv[])
+{
+ pperror("%s", argv[0]);
+
+ return NULL;
+}
+
+static char *do_info(int argc, char *argv[], int old_argc, char *old_argv[])
+{
+ printf("%s\n", argv[0]);
+
+ return xstrdup("");
+}
+
static char *do_shell(int argc, char *argv[], int old_argc, char *old_argv[])
{
FILE *p;
@@ -144,9 +158,19 @@ static char *do_shell(int argc, char *argv[], int old_argc, char *old_argv[])
return xstrdup(buf);
}

+static char *do_warning(int argc, char *argv[], int old_argc, char *old_argv[])
+{
+ fprintf(stderr, "%s:%d: %s\n", current_file->name, yylineno, argv[0]);
+
+ return xstrdup("");
+}
+
static const struct function function_table[] = {
/* Name MIN MAX EXP? Function */
+ { "error", 1, 1, true, do_error },
+ { "info", 1, 1, true, do_info },
{ "shell", 1, 1, true, do_shell },
+ { "warning", 1, 1, true, do_warning },
};

#define FUNCTION_MAX_ARGS 16
--
2.7.4