Differential D25772 Diff 75009 head/sys/arm/arm/trap-v6.c

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head/sys/arm/arm/trap-v6.c

Show First 20 Lines • Show All 163 Lines • ▼ Show 20 Lines	static const struct abort aborts[] = {
{abort_fatal, "Undefined Code (0x40B)"},		{abort_fatal, "Undefined Code (0x40B)"},
{abort_fatal, "Parity Error on Translation (L1)"},		{abort_fatal, "Parity Error on Translation (L1)"},
{abort_fatal, "Undefined Code (0x40D)"},		{abort_fatal, "Undefined Code (0x40D)"},
{abort_fatal, "Parity Error on Translation (L2)"},		{abort_fatal, "Parity Error on Translation (L2)"},
{abort_fatal, "Undefined Code (0x40F)"}		{abort_fatal, "Undefined Code (0x40F)"}
};		};

static __inline void		static __inline void
call_trapsignal(struct thread *td, int sig, int code, vm_offset_t addr)		call_trapsignal(struct thread *td, int sig, int code, vm_offset_t addr,
		int trapno)
{		{
ksiginfo_t ksi;		ksiginfo_t ksi;

CTR4(KTR_TRAP, "%s: addr: %#x, sig: %d, code: %d",		CTR4(KTR_TRAP, "%s: addr: %#x, sig: %d, code: %d",
__func__, addr, sig, code);		__func__, addr, sig, code);

/*		/*
* TODO: some info would be nice to know		* TODO: some info would be nice to know
* if we are serving data or prefetch abort.		* if we are serving data or prefetch abort.
*/		*/

ksiginfo_init_trap(&ksi);		ksiginfo_init_trap(&ksi);
ksi.ksi_signo = sig;		ksi.ksi_signo = sig;
ksi.ksi_code = code;		ksi.ksi_code = code;
ksi.ksi_addr = (void *)addr;		ksi.ksi_addr = (void *)addr;
		ksi.ksi_trapno = trapno;
trapsignal(td, &ksi);		trapsignal(td, &ksi);
}		}

/*		/*
* abort_imprecise() handles the following abort:		* abort_imprecise() handles the following abort:
*		*
* FAULT_EA_IMPREC - Imprecise External Abort		* FAULT_EA_IMPREC - Imprecise External Abort
*		*
▲ Show 20 Lines • Show All 51 Lines • ▼ Show 20 Lines
abort_debug(struct trapframe *tf, u_int fsr, u_int prefetch, bool usermode,		abort_debug(struct trapframe *tf, u_int fsr, u_int prefetch, bool usermode,
u_int far)		u_int far)
{		{

if (usermode) {		if (usermode) {
struct thread *td;		struct thread *td;

td = curthread;		td = curthread;
call_trapsignal(td, SIGTRAP, TRAP_BRKPT, far);		call_trapsignal(td, SIGTRAP, TRAP_BRKPT, far, FAULT_DEBUG);
userret(td, tf);		userret(td, tf);
} else {		} else {
#ifdef KDB		#ifdef KDB
kdb_trap((prefetch) ? T_BREAKPOINT : T_WATCHPOINT, 0, tf);		kdb_trap((prefetch) ? T_BREAKPOINT : T_WATCHPOINT, 0, tf);
#else		#else
printf("No debugger in kernel.\n");		printf("No debugger in kernel.\n");
#endif		#endif
}		}
▲ Show 20 Lines • Show All 254 Lines • ▼ Show 20 Lines	if (!usermode) {
CTR2(KTR_TRAP, "%s: vm_fault() failed with %d", __func__, rv);		CTR2(KTR_TRAP, "%s: vm_fault() failed with %d", __func__, rv);
abort_fatal(tf, idx, fsr, far, prefetch, td, &ksig);		abort_fatal(tf, idx, fsr, far, prefetch, td, &ksig);
return;		return;
}		}

ksig.addr = far;		ksig.addr = far;

do_trapsignal:		do_trapsignal:
call_trapsignal(td, ksig.sig, ksig.code, ksig.addr);		call_trapsignal(td, ksig.sig, ksig.code, ksig.addr, idx);
out:		out:
if (usermode)		if (usermode)
userret(td, tf);		userret(td, tf);
}		}

/*		/*
* abort_fatal() handles the following data aborts:		* abort_fatal() handles the following data aborts:
*		*
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