d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Handle the breakpoint instruction in userland by sending a SIGTRAP signal.

Browse Source
This commit is contained in:
Andrew Turner 2015-08-23 13:18:56 +00:00
parent 9242719ed3
commit 0987c184a1
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/arm64/arm64/trap.c
View File

@ -327,6 +327,7 @@ el0_excp_unknown(struct trapframe *frame)
void void
do_el0_sync(struct trapframe *frame) do_el0_sync(struct trapframe *frame)
{ {
struct thread *td;
uint32_t exception; uint32_t exception;
uint64_t esr; uint64_t esr;
@ -368,6 +369,11 @@ do_el0_sync(struct trapframe *frame)
case EXCP_UNKNOWN: case EXCP_UNKNOWN:
el0_excp_unknown(frame); el0_excp_unknown(frame);
break; break;
case EXCP_BRK:
td = curthread;
call_trapsignal(td, SIGTRAP, TRAP_BRKPT, (void *)frame->tf_elr);
userret(td, frame);
break;
default: default:
print_registers(frame); print_registers(frame);
panic("Unknown userland exception %x esr_el1 %lx\n", exception, panic("Unknown userland exception %x esr_el1 %lx\n", exception,