Differential D39489 Diff 120124 sys/cddl/dev/dtrace/i386/dtrace_subr.c

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Show First 20 Lines • Show All 443 Lines • ▼ Show 20 Lines	if (nofault) {
case T_PROTFLT:		case T_PROTFLT:
/* Flag an illegal operation. */		/* Flag an illegal operation. */
cpu_core[curcpu].cpuc_dtrace_flags \|= CPU_DTRACE_ILLOP;		cpu_core[curcpu].cpuc_dtrace_flags \|= CPU_DTRACE_ILLOP;

/*		/*
* Offset the instruction pointer to the instruction		* Offset the instruction pointer to the instruction
* following the one causing the fault.		* following the one causing the fault.
*/		*/
frame->tf_eip += dtrace_instr_size((u_char *) frame->tf_eip);		frame->tf_eip += dtrace_instr_size((uint8_t *) frame->tf_eip);
return (1);		return (1);
/* Page fault. */		/* Page fault. */
case T_PAGEFLT:		case T_PAGEFLT:
/* Flag a bad address. */		/* Flag a bad address. */
cpu_core[curcpu].cpuc_dtrace_flags \|= CPU_DTRACE_BADADDR;		cpu_core[curcpu].cpuc_dtrace_flags \|= CPU_DTRACE_BADADDR;
cpu_core[curcpu].cpuc_dtrace_illval = rcr2();		cpu_core[curcpu].cpuc_dtrace_illval = rcr2();

/*		/*
* Offset the instruction pointer to the instruction		* Offset the instruction pointer to the instruction
* following the one causing the fault.		* following the one causing the fault.
*/		*/
frame->tf_eip += dtrace_instr_size((u_char *) frame->tf_eip);		frame->tf_eip += dtrace_instr_size((uint8_t *) frame->tf_eip);
return (1);		return (1);
default:		default:
/* Handle all other traps in the usual way. */		/* Handle all other traps in the usual way. */
break;		break;
}		}
}		}

/* Handle the trap in the usual way. */		/* Handle the trap in the usual way. */
return (0);		return (0);
}		}