From: Cody Schafer <openocd@codyps.com>
Date: Mon, 2 Jul 2018 19:56:53 +0000 (-0400)
Subject: target/image: make i/j unsigned to avoid ubsan runtime error
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=4a9a07b1c5189e8f9024fa843f511a0e948e61b5;p=openocd

target/image: make i/j unsigned to avoid ubsan runtime error

	src/target/image.c:1055:15: runtime error: left shift of 128 by 24 places cannot be represented in type 'int'

Change-Id: I322fd391cf3f242beffc8a274824763c8c5e69a4
Signed-off-by: Cody Schafer <openocd@codyps.com>
Reviewed-on: http://openocd.zylin.com/4584
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Christopher Head <chead@zaber.com>
---

diff --git a/src/target/image.c b/src/target/image.c
index 9f56bea0..0d98c57b 100644
--- a/src/target/image.c
+++ b/src/target/image.c
@@ -1048,8 +1048,7 @@ int image_calculate_checksum(uint8_t *buffer, uint32_t nbytes, uint32_t *checksu
 	static bool first_init;
 	if (!first_init) {
 		/* Initialize the CRC table and the decoding table.  */
-		int i, j;
-		unsigned int c;
+		unsigned int i, j, c;
 		for (i = 0; i < 256; i++) {
 			/* as per gdb */
 			for (c = i << 24, j = 8; j > 0; --j)