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When trying to execute from a misaligned address raise a SIGBUS with the

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invalid address alignment code.

Obtained from:	EuroBSDCon
Sponsored by:	ABT Systems Ltd
This commit is contained in:
andrew 2015-10-04 21:16:45 +00:00
parent e2681931e4
commit 771796b063
1 changed files with 5 additions and 0 deletions
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5
sys/arm64/arm64/trap.c
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@ -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);