[SPARC32]: Display useful information in the event of a bad trap

arch/sparc/kernel/entry.S

@@ -288,10 +288,9 @@ bad_trap_handler:
 	wr	%l0, PSR_ET, %psr
 	WRITE_PAUSE
 
-	mov	%l7, %o0		! trap number
-	mov	%l0, %o1		! psr
+	add	%sp, STACKFRAME_SZ, %o0	! pt_regs
 	call	do_hw_interrupt
-	 mov	%l1, %o2		! pc
+	 mov	%l7, %o1		! trap number
 
 	RESTORE_ALL
 	

arch/sparc/kernel/traps.c

@@ -131,23 +131,23 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 	do_exit(SIGSEGV);
 }
 
-void do_hw_interrupt(unsigned long type, unsigned long psr, unsigned long pc)
+void do_hw_interrupt(struct pt_regs *regs, unsigned long type)
 {
 	siginfo_t info;
 
 	if(type < 0x80) {
 		/* Sun OS's puke from bad traps, Linux survives! */
 		printk("Unimplemented Sparc TRAP, type = %02lx\n", type);
-		die_if_kernel("Whee... Hello Mr. Penguin", current->thread.kregs);
+		die_if_kernel("Whee... Hello Mr. Penguin", regs);
 	}	
 
-	if(psr & PSR_PS)
-		die_if_kernel("Kernel bad trap", current->thread.kregs);
+	if(regs->psr & PSR_PS)
+		die_if_kernel("Kernel bad trap", regs);
 
 	info.si_signo = SIGILL;
 	info.si_errno = 0;
 	info.si_code = ILL_ILLTRP;
-	info.si_addr = (void *)pc;
+	info.si_addr = (void *)regs->pc;
 	info.si_trapno = type - 0x80;
 	force_sig_info(SIGILL, &info, current);
 }