Revert "sandbox: remove os_putc() and os_puts()"

While sandbox works OK without the special-case code, it does result in
console output being stored in the pre-console buffer while sandbox starts
up. If there is a crash or a problem then there is no indication of what
is going on.

For ease of debugging it seems better to revert this change.

This reverts commit 47b98ad0f6779485d0f0c14f337c3eece273eb54.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/include/os.h b/include/os.h
index 2bf4bdb1b83..049b248c5b0 100644
--- a/include/os.h
+++ b/include/os.h
@@ -241,6 +241,26 @@ const char *os_dirent_get_typename(enum os_dirent_t type);
 int os_get_filesize(const char *fname, loff_t *size);
 
 /**
+ * Write a character to the controlling OS terminal
+ *
+ * This bypasses the U-Boot console support and writes directly to the OS
+ * stdout file descriptor.
+ *
+ * @param ch	Character to write
+ */
+void os_putc(int ch);
+
+/**
+ * Write a string to the controlling OS terminal
+ *
+ * This bypasses the U-Boot console support and writes directly to the OS
+ * stdout file descriptor.
+ *
+ * @param str	String to write (note that \n is not appended)
+ */
+void os_puts(const char *str);
+
+/**
  * Write the sandbox RAM buffer to a existing file
  *
  * @param fname		Filename to write memory to (simple binary format)