console: Support a format string for stderr output
Add a console_printf_select_stderr() function so that it is not
necessary for the caller to process the format string.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
diff --git a/common/console.c b/common/console.c
index 275da2f..48586fd 100644
--- a/common/console.c
+++ b/common/console.c
@@ -359,6 +359,24 @@
console_puts_select(stderr, serial_only, s);
}
+int console_printf_select_stderr(bool serial_only, const char *fmt, ...)
+{
+ char buf[CONFIG_SYS_PBSIZE];
+ va_list args;
+ int ret;
+
+ va_start(args, fmt);
+
+ /* For this to work, buf must be larger than anything we ever want to
+ * print.
+ */
+ ret = vscnprintf(buf, sizeof(buf), fmt, args);
+ va_end(args);
+ console_puts_select_stderr(serial_only, buf);
+
+ return ret;
+}
+
static void console_puts(int file, const char *s)
{
int i;