Changeset 48a209a in mainline

Timestamp:

2012-11-25T18:49:04Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

ab52a3e

Parents:

4f843ded

Message:

arm32, fpu: Compensate for offset in undef instruction handler.

File:

• kernel/arch/arm32/src/exception.c (modified) (1 diff)

kernel/arch/arm32/src/exception.c

@@ -170 +170 @@
                 fault_if_from_uspace(istate, "Undefined instruction.");
                 panic_badtrap(istate, exc_no, "Undefined instruction.");
+        } else {
+                /*
+                 * Retry the failing instruction,
+                 * ARM Architecture Reference Manual says on p.B1-1169
+                 * that offset for undef instruction exception is 4
+                 */
+                istate->pc -= 4;
         }
 }