svn commit: r288671 - head/sys/arm64/arm64
Andrew Turner
andrew at FreeBSD.org
Sun Oct 4 21:16:46 UTC 2015
Author: andrew
Date: Sun Oct 4 21:16:45 2015
New Revision: 288671
URL: https://svnweb.freebsd.org/changeset/base/288671
Log:
When trying to execute from a misaligned address raise a SIGBUS with the
invalid address alignment code.
Obtained from: EuroBSDCon
Sponsored by: ABT Systems Ltd
Modified:
head/sys/arm64/arm64/trap.c
Modified: head/sys/arm64/arm64/trap.c
==============================================================================
--- head/sys/arm64/arm64/trap.c Sun Oct 4 19:10:27 2015 (r288670)
+++ head/sys/arm64/arm64/trap.c Sun Oct 4 21:16:45 2015 (r288671)
@@ -377,6 +377,11 @@ do_el0_sync(struct trapframe *frame)
case EXCP_UNKNOWN:
el0_excp_unknown(frame);
break;
+ case EXCP_PC_ALIGN:
+ td = curthread;
+ call_trapsignal(td, SIGBUS, BUS_ADRALN, (void *)frame->tf_elr);
+ userret(td, frame);
+ break;
case EXCP_BRK:
td = curthread;
call_trapsignal(td, SIGTRAP, TRAP_BRKPT, (void *)frame->tf_elr);
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