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Differential D15431 Diff 42613 head/sys/arm/arm/trap-v4.c

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head/sys/arm/arm/trap-v4.c

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* *
* Note: If 'l' is NULL, we assume we're dealing with a prefetch abort. * Note: If 'l' is NULL, we assume we're dealing with a prefetch abort.
*/ */
static int static int
dab_fatal(struct trapframe *tf, u_int fsr, u_int far, struct thread *td, dab_fatal(struct trapframe *tf, u_int fsr, u_int far, struct thread *td,
struct ksig *ksig) struct ksig *ksig)
{ {
const char *mode; const char *mode;
#ifdef KDB
bool handled;
#endif
#ifdef KDB
if (kdb_active) {
kdb_reenter();
return (0);
}
#endif
#ifdef KDTRACE_HOOKS #ifdef KDTRACE_HOOKS
if (!TRAP_USERMODE(tf)) { if (!TRAP_USERMODE(tf)) {
if (dtrace_trap_func != NULL && (*dtrace_trap_func)(tf, far & FAULT_TYPE_MASK)) if (dtrace_trap_func != NULL && (*dtrace_trap_func)(tf, far & FAULT_TYPE_MASK))
return (0); return (0);
} }
#endif #endif
mode = TRAP_USERMODE(tf) ? "user" : "kernel"; mode = TRAP_USERMODE(tf) ? "user" : "kernel";
Show All 26 Lines if (TRAP_USERMODE(tf))
printf("usp=%08x, ulr=%08x", printf("usp=%08x, ulr=%08x",
tf->tf_usr_sp, tf->tf_usr_lr); tf->tf_usr_sp, tf->tf_usr_lr);
else else
printf("ssp=%08x, slr=%08x", printf("ssp=%08x, slr=%08x",
tf->tf_svc_sp, tf->tf_svc_lr); tf->tf_svc_sp, tf->tf_svc_lr);
printf(", pc =%08x\n\n", tf->tf_pc); printf(", pc =%08x\n\n", tf->tf_pc);
#ifdef KDB #ifdef KDB
if (debugger_on_panic || kdb_active) if (debugger_on_panic) {
if (kdb_trap(fsr, 0, tf)) kdb_why = KDB_WHY_TRAP;
handled = kdb_trap(fsr, 0, tf);
kdb_why = KDB_WHY_UNSET;
if (handled)
return (0); return (0);
}
#endif #endif
panic("Fatal abort"); panic("Fatal abort");
/*NOTREACHED*/ /*NOTREACHED*/
} }
/* /*
* dab_align() handles the following data aborts: * dab_align() handles the following data aborts:
* *
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