Author: andrew
Date: Sun Aug 23 13:18:56 2015
New Revision: 287031
URL: https://svnweb.freebsd.org/changeset/base/287031
Log:
Handle the breakpoint instruction in userland by sending a SIGTRAP signal.
Modified:
head/sys/arm64/arm64/trap.c
Modified: head/sys/arm64/arm64/trap.c
==============================================================================
--- head/sys/arm64/arm64/trap.c Sun Aug 23 08:22:00 2015 (r287030)
+++ head/sys/arm64/arm64/trap.c Sun Aug 23 13:18:56 2015 (r287031)
@@ -327,6 +327,7 @@ el0_excp_unknown(struct trapframe *frame
void
do_el0_sync(struct trapframe *frame)
{
+ struct thread *td;
uint32_t exception;
uint64_t esr;
@@ -368,6 +369,11 @@ do_el0_sync(struct trapframe *frame)
case EXCP_UNKNOWN:
el0_excp_unknown(frame);
break;
+ case EXCP_BRK:
+ td = curthread;
+ call_trapsignal(td, SIGTRAP, TRAP_BRKPT, (void *)frame->tf_elr);
+ userret(td, frame);
+ break;
default:
print_registers(frame);
panic("Unknown userland exception %x esr_el1 %lx\n", exception,
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