From: Simon Glass <sjg@chromium.org>
Date: Mon, 21 Oct 2019 23:26:43 +0000 (-0600)
Subject: tiny-printf: Reduce size by removing ctype
X-Git-Tag: v2020.01-rc2~27^2~12
X-Git-Url: https://git.librecmc.org/?p=oweals%2Fu-boot.git;a=commitdiff_plain;h=1c1c8a3a990742a73a75b091c35213b0a50f0c45

tiny-printf: Reduce size by removing ctype

The ctype array is brought into the image, adding 256 bytes, when it is
unlikely to be needed. The extra code for %p is only present when DEBUG
is defined, so let's drop ctype as well unless DEBUG is defined.

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

diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c
index ebef92fc9f..632b424914 100644
--- a/lib/tiny-printf.c
+++ b/lib/tiny-printf.c
@@ -289,8 +289,15 @@ static int _vprintf(struct printf_info *info, const char *fmt, va_list va)
 				break;
 			case 'p':
 				pointer(info, fmt, va_arg(va, void *));
+				/*
+				 * Skip this because it pulls in _ctype which is
+				 * 256 bytes, and we don't generally implement
+				 * pointer anyway
+				 */
+#ifdef DEBUG
 				while (isalnum(fmt[0]))
 					fmt++;
+#endif
 				break;
 			case '%':
 				out(info, '%');