From: Darafei Praliaskouski <me@komzpa.net>
Date: Sat, 21 Jul 2018 14:20:52 +0000 (+0000)
Subject: 32bit allocations are 4-byte aligned, not 8-byte aligned.
X-Git-Tag: 2.5.0beta2~32
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1325a65ebf9fd3e8e3055259811ac44ec4227188;p=postgis

32bit allocations are 4-byte aligned, not 8-byte aligned.

Fix 8-bit alignment assumption in padding to match assert.

Passes tests on 32bit Ubuntu Artful.

References #3994


git-svn-id: http://svn.osgeo.org/postgis/trunk@16654 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/raster/rt_core/rt_serialize.c b/raster/rt_core/rt_serialize.c
index 9d17aa028..eb5a87715 100644
--- a/raster/rt_core/rt_serialize.c
+++ b/raster/rt_core/rt_serialize.c
@@ -688,11 +688,9 @@ rt_raster_serialize(rt_raster raster) {
 #endif
 
 		/* Pad up to 8-bytes boundary */
-		while ((uintptr_t) ptr % 8) {
+		while ((ptr-ret) % 8) {
 			*ptr = 0;
 			++ptr;
-
-			RASTER_DEBUGF(3, "PAD at %d", (uintptr_t) ptr % 8);
 		}
 
 		/* Consistency checking (ptr is pixbytes-aligned) */