Differential D15093 Diff 41646 head/sys/amd64/amd64/trap.c

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head/sys/amd64/amd64/trap.c

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trap_fatal(frame, eva)		trap_fatal(frame, eva)
struct trapframe *frame;		struct trapframe *frame;
vm_offset_t eva;		vm_offset_t eva;
{		{
int code, ss;		int code, ss;
u_int type;		u_int type;
struct soft_segment_descriptor softseg;		struct soft_segment_descriptor softseg;
char *msg;		char *msg;
		#ifdef KDB
		bool handled;
		#endif

code = frame->tf_err;		code = frame->tf_err;
type = frame->tf_trapno;		type = frame->tf_trapno;
sdtossd(&gdt[NGDT * PCPU_GET(cpuid) + IDXSEL(frame->tf_cs & 0xffff)],		sdtossd(&gdt[NGDT * PCPU_GET(cpuid) + IDXSEL(frame->tf_cs & 0xffff)],
&softseg);		&softseg);

if (type <= MAX_TRAP_MSG)		if (type <= MAX_TRAP_MSG)
msg = trap_msg[type];		msg = trap_msg[type];
Show All 34 Lines	if (frame->tf_rflags & PSL_NT)
printf("nested task, ");		printf("nested task, ");
if (frame->tf_rflags & PSL_RF)		if (frame->tf_rflags & PSL_RF)
printf("resume, ");		printf("resume, ");
printf("IOPL = %ld\n", (frame->tf_rflags & PSL_IOPL) >> 12);		printf("IOPL = %ld\n", (frame->tf_rflags & PSL_IOPL) >> 12);
printf("current process = %d (%s)\n",		printf("current process = %d (%s)\n",
curproc->p_pid, curthread->td_name);		curproc->p_pid, curthread->td_name);

#ifdef KDB		#ifdef KDB
if (debugger_on_panic)		if (debugger_on_panic) {
if (kdb_trap(type, 0, frame))		kdb_why = KDB_WHY_TRAP;
		handled = kdb_trap(type, 0, frame);
		kdb_why = KDB_WHY_UNSET;
		if (handled)
return;		return;
		}
#endif		#endif
printf("trap number = %d\n", type);		printf("trap number = %d\n", type);
if (type <= MAX_TRAP_MSG)		if (type <= MAX_TRAP_MSG)
panic("%s", trap_msg[type]);		panic("%s", trap_msg[type]);
else		else
panic("unknown/reserved trap");		panic("unknown/reserved trap");
}		}

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