Changeset bb1b44e in mainline

Timestamp:

2012-03-29T21:41:34Z (12 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

38384ae, d4d74dc, d9faae91

Parents:

b31f735

Message:

Make sure to run inflate() on non-overlapping source and destination
regions in ia64's boot.

File:

• boot/arch/ia64/src/main.c (modified) (1 diff)

boot/arch/ia64/src/main.c

@@ -189 +189 @@
         printf("\nInflating components ... ");
         
+        /*
+         * We will use the next available address for a copy of each component to
+         * make sure that inflate() works with disjunctive memory regions.
+         */
+        top = ALIGN_UP(top, PAGE_SIZE);
+
         for (i = cnt; i > 0; i--) {
                 printf("%s ", components[i - 1].name);
                 
-                int err = inflate(components[i - 1].start, components[i - 1].size,
+                /*
+                 * Copy the component to a location which is guaranteed not to
+                 * overlap with the destination for inflate().
+                 */
+                memmove((void *) top, components[i - 1].start, components[i - 1].size);
+                
+                int err = inflate((void *) top, components[i - 1].size,
                     dest[i - 1], components[i - 1].inflated);