void show_stack(struct task_struct *task, unsigned long *sp)
{
unsigned long *stack;
int i;
if (sp == NULL) {
if (task)
sp = (unsigned long *) ((struct thread_info *)
(task->stack))->cpu_context.r1;
else
sp = (unsigned long *)&sp;
}
stack = sp;
printk(KERN_INFO "\nStack:\n ");
for (i = 0; i < kstack_depth_to_print; i++) {
if (kstack_end(sp))
break;
if (i && ((i % 8) == 0))
printk("\n ");
printk("%08lx ", *sp++);
}
printk("\n");
show_trace(task, stack);
}
void
show_stack(struct task_struct *task, unsigned long *sp)
{
unsigned long *stack, addr;
int i;
if (sp == NULL) {
if (task)
sp = (unsigned long*)task->thread.ksp;
else
sp = (unsigned long*)rdsp();
}
stack = sp;
printk("\nStack from %08lx:\n ", (unsigned long)stack);
for (i = 0; i < kstack_depth_to_print; i++) {
if (((long)stack & (THREAD_SIZE-1)) == 0)
break;
if (i && ((i % 8) == 0))
printk("\n ");
if (__get_user(addr, stack)) {
printk("Failing address 0x%lx\n", (unsigned long)stack);
break;
}
stack++;
printk("%08lx ", addr);
}
show_trace(sp);
}
void show_stack(unsigned long * sp)
{
unsigned long *stack;
int i;
/*
* debugging aid: "show_stack(NULL);" prints the
* back trace for this cpu.
*/
if (sp==NULL)
sp = (unsigned long*)&sp;
stack = sp;
printk("\n" KERN_CRIT "Stack Dump:\n");
printk(KERN_CRIT " " RFMT ": ", (unsigned long) stack);
for (i=0; i < kstack_depth_to_print; i++) {
if (((long) stack & (THREAD_SIZE-1)) == 0)
break;
if (i && ((i & 0x03) == 0))
printk("\n" KERN_CRIT " " RFMT ": ",
(unsigned long) stack);
printk(RFMT " ", *stack--);
}
printk("\n" KERN_CRIT "\n");
show_trace(sp);
}
/* This recently started being used in arch-independent code too, as in
* kernel/sched.c.*/
void show_stack(struct task_struct *task, unsigned long *esp)
{
unsigned long *stack;
int i;
if (esp == NULL) {
if (task != current && task != NULL) {
esp = (unsigned long *) KSTK_ESP(task);
} else {
esp = (unsigned long *) &esp;
}
}
stack = esp;
for(i = 0; i < kstack_depth_to_print; i++) {
if (kstack_end(stack))
break;
if (i && ((i % 8) == 0))
printk("\n ");
printk("%08lx ", *stack++);
}
printk("Call Trace: \n");
show_trace(task, esp);
}
void show_stack(struct task_struct *task, unsigned long *sp)
{
unsigned long *stack;
int i;
/*
* debugging aid: "show_stack(NULL);" prints the
* back trace for this cpu.
*/
if(sp==NULL) {
if (task)
sp = (unsigned long *)task->thread.sp;
else
sp=(unsigned long*)&sp;
}
stack = sp;
for(i=0; i < kstack_depth_to_print; i++) {
if (kstack_end(stack))
break;
if (i && ((i % 4) == 0))
printk("\n ");
printk("%08lx ", *stack++);
}
printk("\n");
show_trace(task, sp);
}
void show_stack(struct task_struct *task, unsigned long *stack)
{
unsigned long *endstack, addr;
int i;
if (!stack) {
if (task)
stack = (unsigned long *)task->thread.ksp;
else
stack = (unsigned long *)&stack;
}
addr = (unsigned long)stack;
endstack = (unsigned long *)PAGE_ALIGN(addr);
printk(KERN_EMERG "Stack from %08lx:", (unsigned long)stack);
for (i = 0; i < kstack_depth_to_print; i++) {
if (stack + 1 > endstack)
break;
if (i % 8 == 0)
printk("\n" KERN_EMERG " ");
printk(" %08lx", *stack++);
}
show_trace(task, stack);
}
void show_regs(struct pt_regs * regs)
{
unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
printk("\n");
printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
printk("EIP: %04x:[<%08lx>] CPU: %d\n",0xffff & regs->xcs,regs->eip, smp_processor_id());
print_symbol("EIP is at %s\n", regs->eip);
if (user_mode_vm(regs))
printk(" ESP: %04x:%08lx",0xffff & regs->xss,regs->esp);
printk(" EFLAGS: %08lx %s (%s %.*s)\n",
regs->eflags, print_tainted(), system_utsname.release,
(int)strcspn(system_utsname.version, " "),
system_utsname.version);
printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
regs->eax,regs->ebx,regs->ecx,regs->edx);
printk("ESI: %08lx EDI: %08lx EBP: %08lx",
regs->esi, regs->edi, regs->ebp);
printk(" DS: %04x ES: %04x\n",
0xffff & regs->xds,0xffff & regs->xes);
cr0 = read_cr0();
cr2 = read_cr2();
cr3 = read_cr3();
cr4 = read_cr4_safe();
printk("CR0: %08lx CR2: %08lx CR3: %08lx CR4: %08lx\n", cr0, cr2, cr3, cr4);
show_trace(NULL, regs, ®s->esp);
}
void show_stack(struct task_struct *task, unsigned long *stack)
{
unsigned long *endstack, addr;
int i;
/* Cannot call dump_bfin_trace_buffer() here as show_stack() is
* called externally in some places in the kernel.
*/
if (!stack) {
if (task)
stack = (unsigned long *)task->thread.ksp;
else
stack = (unsigned long *)&stack;
}
addr = (unsigned long)stack;
endstack = (unsigned long *)PAGE_ALIGN(addr);
printk(KERN_NOTICE "Stack from %08lx:", (unsigned long)stack);
for (i = 0; i < kstack_depth_to_print; i++) {
if (stack + 1 > endstack)
break;
if (i % 8 == 0)
printk("\n" KERN_NOTICE " ");
printk(" %08lx", *stack++);
}
printk("\n");
show_trace(task, stack);
}
void show_stack(struct task_struct *task, unsigned long *stack)
{
unsigned long *p, *endstack;
int i;
if (!stack) {
if (task && task != current)
/* We know this is a kernel stack,
so this is the start/end */
stack = (unsigned long *)thread_saved_ksp(task);
else
stack = (unsigned long *)&stack;
}
endstack = (unsigned long *)(((unsigned long)stack + THREAD_SIZE - 1)
& -THREAD_SIZE);
pr_debug("Stack from %08lx:", (unsigned long)stack);
for (i = 0, p = stack; i < kstack_depth_to_print; i++) {
if (p + 1 > endstack)
break;
if (i % 8 == 0)
pr_cont("\n ");
pr_cont(" %08lx", *p++);
}
pr_cont("\n");
show_trace(stack, endstack);
}
/* displays a short stack trace */
void show_stack(struct task_struct *task, unsigned long *esp)
{
unsigned long addr, *stack;
int i;
if (esp == NULL)
esp = (unsigned long *)&esp;
stack = esp;
printk("Stack dump [0x%08lx]:\n", (unsigned long)esp);
for (i = 0; i < kstack_depth_to_print; i++) {
if (kstack_end(stack))
break;
if (__get_user(addr, stack)) {
/* This message matches "failing address" marked
s390 in ksymoops, so lines containing it will
not be filtered out by ksymoops. */
printk("Failing address 0x%lx\n", (unsigned long)stack);
break;
}
stack++;
printk("sp + %02d: 0x%08lx\n", i * 4, addr);
}
printk("\n");
show_trace(task, esp);
return;
}
void show_trace_task(struct task_struct *tsk)
{
unsigned long esp = PT_REGS_SP(&tsk->thread.regs);
/* User space on another CPU? */
if ((esp ^ (unsigned long)tsk) & (PAGE_MASK<<1))
return;
show_trace((unsigned long *)esp);
}
void show_regs(struct pt_regs *regs)
{
show_regs_print_info(KERN_DEFAULT);
show_registers(regs);
/* Show stack backtrace if pt_regs is from kernel mode */
if (!user_mode(regs))
show_trace(NULL, (unsigned long *) regs->gprs[15]);
show_last_breaking_event(regs);
}
void show_trace_task(struct task_struct *tsk)
{
unsigned long sp = tsk->thread.sp;
/* User space on another CPU? */
if ((sp ^ (unsigned long) tsk) & (PAGE_MASK << 1))
return;
show_trace((unsigned long *) sp);
}
static void show_registers(struct pt_regs *regs)
{
show_regs(regs);
printk(KERN_NOTICE "Process %s (pid: %d, stackpage=%08lx)\n",
current->comm, current->pid, (unsigned long) current);
show_stack(current_thread_info()->task, (long *) regs->regs[0]);
show_trace((long *) regs->regs[0]);
show_code((unsigned int *) regs->cp0_epc);
printk(KERN_NOTICE "\n");
}
/*
* The architecture-independent dump_stack generator
*/
void dump_stack(void)
{
unsigned long stack;
printk("Pid: %d, comm: %.20s %s %s %.*s\n",
current->pid, current->comm, print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
show_trace(NULL, NULL, &stack);
}
int show_trace (char * str, ...)
{
va_list marker;
int count;
va_start (marker, str);
count = show_trace (str, marker);
va_end (marker);
fflush (stderr);
return count;
}
/*
* The architecture-independent dump_stack generator
*/
void dump_stack(void)
{
unsigned long bp;
unsigned long stack;
bp = stack_frame(current, NULL);
printk("Pid: %d, comm: %.20s mm: {%p} %s %s %.*s\n",
current->pid, current->comm,current->mm, print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
show_trace(NULL, NULL, &stack, bp);
}
void show_stack(struct task_struct *tsk, unsigned long *sp)
{
unsigned long stack;
if (!tsk)
tsk = current;
if (tsk == current)
sp = (unsigned long *)current_stack_pointer;
else
sp = (unsigned long *)tsk->thread.sp;
stack = (unsigned long)sp;
dump_mem("Stack: ", stack, THREAD_SIZE +
(unsigned long)task_stack_page(tsk));
show_trace(tsk, sp, NULL);
}
void dump_stack(void)
{
unsigned long bp = 0;
unsigned long stack;
#ifdef CONFIG_FRAME_POINTER
if (!bp)
get_bp(bp);
#endif
printk("Pid: %d, comm: %.20s %s %s %.*s\n",
current->pid, current->comm, print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
show_trace(NULL, NULL, &stack, bp);
}
void show_regs(struct pt_regs * regs)
{
printk("\n");
printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
printk("EIP: %04x:[<%08lx>] CPU: %d\n",0xffff & regs->xcs,regs->eip, smp_processor_id());
print_symbol("EIP is at %s\n", regs->eip);
if (regs->xcs & 2)
printk(" ESP: %04x:%08lx",0xffff & regs->xss,regs->esp);
printk(" EFLAGS: %08lx %s (%s)\n",regs->eflags, print_tainted(),UTS_RELEASE);
printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
regs->eax,regs->ebx,regs->ecx,regs->edx);
printk("ESI: %08lx EDI: %08lx EBP: %08lx",
regs->esi, regs->edi, regs->ebp);
printk(" DS: %04x ES: %04x\n",
0xffff & regs->xds,0xffff & regs->xes);
show_trace(NULL, ®s->esp);
}
/*
* show the raw stack from the specified stack pointer
*/
void show_stack(struct task_struct *task, unsigned long *sp)
{
unsigned long *stack;
int i;
if (!sp)
sp = (unsigned long *) &sp;
stack = sp;
printk(KERN_EMERG "Stack:");
for (i = 0; i < kstack_depth_to_print; i++) {
if (((long) stack & (THREAD_SIZE - 1)) == 0)
break;
if ((i % 8) == 0)
printk("\n" KERN_EMERG " ");
printk("%08lx ", *stack++);
}
show_trace(sp);
}
void show_regs(struct pt_regs *regs)
{
unsigned long sp = regs->sp;
unsigned long lr = regs->lr;
unsigned long mode = (regs->sr & MODE_MASK) >> MODE_SHIFT;
if (!user_mode(regs))
sp = (unsigned long)regs + FRAME_SIZE_FULL;
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("LR is at %s\n", lr);
printk("pc : [<%08lx>] lr : [<%08lx>] %s\n"
"sp : %08lx r12: %08lx r11: %08lx\n",
instruction_pointer(regs),
lr, print_tainted(), sp, regs->r12, regs->r11);
printk("r10: %08lx r9 : %08lx r8 : %08lx\n",
regs->r10, regs->r9, regs->r8);
printk("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
regs->r7, regs->r6, regs->r5, regs->r4);
printk("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
regs->r3, regs->r2, regs->r1, regs->r0);
printk("Flags: %c%c%c%c%c\n",
regs->sr & SR_Q ? 'Q' : 'q',
regs->sr & SR_V ? 'V' : 'v',
regs->sr & SR_N ? 'N' : 'n',
regs->sr & SR_Z ? 'Z' : 'z',
regs->sr & SR_C ? 'C' : 'c');
printk("Mode bits: %c%c%c%c%c%c%c%c%c\n",
regs->sr & SR_H ? 'H' : 'h',
regs->sr & SR_R ? 'R' : 'r',
regs->sr & SR_J ? 'J' : 'j',
regs->sr & SR_EM ? 'E' : 'e',
regs->sr & SR_I3M ? '3' : '.',
regs->sr & SR_I2M ? '2' : '.',
regs->sr & SR_I1M ? '1' : '.',
regs->sr & SR_I0M ? '0' : '.',
regs->sr & SR_GM ? 'G' : 'g');
printk("CPU Mode: %s\n", cpu_modes[mode]);
show_trace(NULL, (unsigned long *)sp, regs);
}
void show_regs(struct pt_regs_subarch *regs)
{
printk("\n");
printk("show_regs(): insert regs here.\n");
#if 0
printk("\n");
printk("EIP: %04x:[<%08lx>] CPU: %d",0xffff & regs->xcs, regs->eip,
smp_processor_id());
if (regs->xcs & 3)
printk(" ESP: %04x:%08lx",0xffff & regs->xss, regs->esp);
printk(" EFLAGS: %08lx\n", regs->eflags);
printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
regs->eax, regs->ebx, regs->ecx, regs->edx);
printk("ESI: %08lx EDI: %08lx EBP: %08lx",
regs->esi, regs->edi, regs->ebp);
printk(" DS: %04x ES: %04x\n",
0xffff & regs->xds, 0xffff & regs->xes);
#endif
show_trace(®s->gpr[1]);
}
void show_stack(struct task_struct *task, unsigned long *sp)
{
register unsigned long *__r15 asm ("15");
unsigned long *stack;
int i;
if (!sp)
stack = task ? (unsigned long *) task->thread.ksp : __r15;
else
stack = sp;
for (i = 0; i < kstack_depth_to_print; i++) {
if (((addr_t) stack & (THREAD_SIZE-1)) == 0)
break;
if ((i * sizeof(long) % 32) == 0)
printk("%s ", i == 0 ? "" : "\n");
printk(LONG, *stack++);
}
printk("\n");
show_trace(task, sp);
}
void
show_stack(struct task_struct *task, unsigned long *sp)
{
unsigned long *stack, addr;
int i;
/*
* debugging aid: "show_stack(NULL);" prints a
* back trace.
*/
if(sp == NULL) {
if (task)
sp = (unsigned long*)task->thread.ksp;
else
sp = (unsigned long*)rdsp();
}
stack = sp;
raw_printk("\nStack from %08lx:\n ", (unsigned long)stack);
for(i = 0; i < kstack_depth_to_print; i++) {
if (((long) stack & (THREAD_SIZE-1)) == 0)
break;
if (i && ((i % 8) == 0))
raw_printk("\n ");
if (__get_user (addr, stack)) {
/* This message matches "failing address" marked
s390 in ksymoops, so lines containing it will
not be filtered out by ksymoops. */
raw_printk ("Failing address 0x%lx\n", (unsigned long)stack);
break;
}
stack++;
raw_printk("%08lx ", addr);
}
show_trace(sp);
}
void show_stack(struct task_struct *tsk, unsigned long * rsp)
{
unsigned long *stack;
int i;
const int cpu = safe_smp_processor_id();
unsigned long *irqstack_end = (unsigned long *) (cpu_pda[cpu].irqstackptr);
unsigned long *irqstack = (unsigned long *) (cpu_pda[cpu].irqstackptr - IRQSTACKSIZE);
// debugging aid: "show_stack(NULL, NULL);" prints the
// back trace for this cpu.
if (rsp == NULL) {
if (tsk)
rsp = (unsigned long *)tsk->thread.rsp;
else
rsp = (unsigned long *)&rsp;
}
stack = rsp;
for(i=0; i < kstack_depth_to_print; i++) {
if (stack >= irqstack && stack <= irqstack_end) {
if (stack == irqstack_end) {
stack = (unsigned long *) (irqstack_end[-1]);
printk(" <EOI> ");
}
} else {
if (((long) stack & (THREAD_SIZE-1)) == 0)
break;
}
if (i && ((i % 4) == 0))
printk("\n ");
printk("%016lx ", *stack++);
touch_nmi_watchdog();
}
show_trace((unsigned long *)rsp);
}
// Display all processes and relevant network traffic using show function
void do_refresh()
{
refreshconninode();
refreshcount++;
ProcList * curproc = processes;
ProcList * previousproc = NULL;
int nproc = processes->size();
/* initialise to null pointers */
Line * lines [nproc];
int n = 0;
#ifndef NDEBUG
// initialise to null pointers
for (int i = 0; i < nproc; i++)
lines[i] = NULL;
#endif
while (curproc != NULL)
{
// walk though its connections, summing up their data, and
// throwing away connections that haven't received a package
// in the last PROCESSTIMEOUT seconds.
assert (curproc != NULL);
assert (curproc->getVal() != NULL);
assert (nproc == processes->size());
/* remove timed-out processes (unless it's one of the the unknown process) */
if ((curproc->getVal()->getLastPacket() + PROCESSTIMEOUT <= curtime.tv_sec)
&& (curproc->getVal() != unknowntcp)
&& (curproc->getVal() != unknownudp)
&& (curproc->getVal() != unknownip))
{
if (DEBUG)
std::cout << "PROC: Deleting process\n";
ProcList * todelete = curproc;
Process * p_todelete = curproc->getVal();
if (previousproc)
{
previousproc->next = curproc->next;
curproc = curproc->next;
} else {
processes = curproc->getNext();
curproc = processes;
}
delete todelete;
delete p_todelete;
nproc--;
//continue;
}
else
{
// add a non-timed-out process to the list of stuff to show
float value_sent = 0,
value_recv = 0;
if (viewMode == VIEWMODE_KBPS)
{
//std::cout << "kbps viemode" << std::endl;
getkbps (curproc->getVal(), &value_recv, &value_sent);
}
else if (viewMode == VIEWMODE_TOTAL_KB)
{
//std::cout << "total viemode" << std::endl;
gettotalkb(curproc->getVal(), &value_recv, &value_sent);
}
else if (viewMode == VIEWMODE_TOTAL_MB)
{
//std::cout << "total viemode" << std::endl;
gettotalmb(curproc->getVal(), &value_recv, &value_sent);
}
else if (viewMode == VIEWMODE_TOTAL_B)
{
//std::cout << "total viemode" << std::endl;
gettotalb(curproc->getVal(), &value_recv, &value_sent);
}
else
{
forceExit(false, "Invalid viewMode: %d", viewMode);
}
uid_t uid = curproc->getVal()->getUid();
#ifndef NDEBUG
struct passwd * pwuid = getpwuid(uid);
assert (pwuid != NULL);
// value returned by pwuid should not be freed, according to
// Petr Uzel.
//free (pwuid);
#endif
assert (curproc->getVal()->pid >= 0);
assert (n < nproc);
lines[n] = new Line (curproc->getVal()->name, value_recv, value_sent,
curproc->getVal()->pid, uid, curproc->getVal()->devicename);
previousproc = curproc;
curproc = curproc->next;
n++;
#ifndef NDEBUG
assert (nproc == processes->size());
if (curproc == NULL)
assert (n-1 < nproc);
else
assert (n < nproc);
#endif
}
}
/* sort the accumulated lines */
qsort (lines, nproc, sizeof(Line *), GreatestFirst);
if (tracemode || DEBUG)
show_trace(lines, nproc);
else
show_ncurses(lines, nproc);
if (refreshlimit != 0 && refreshcount >= refreshlimit)
quit_cb(0);
}
static void show_msg(FILE *stream, int direction, const erlang_msg *msg,
const char *buf)
{
if (direction) fprintf(stream,"-> ");
else fprintf(stream,"<- ");
switch (msg->msgtype) {
case ERL_LINK:
fprintf(stream,"LINK From: ");
show_pid(stream,&msg->from);
fprintf(stream," To: ");
show_pid(stream,&msg->to);
break;
case ERL_SEND:
fprintf(stream,"SEND To: ");
show_pid(stream,&msg->to);
fprintf(stream,"\n ");
/* show the message */
ei_efprint(stream,buf);
break;
case ERL_EXIT:
fprintf(stream,"EXIT From: ");
show_pid(stream,&msg->from);
fprintf(stream," To: ");
show_pid(stream,&msg->to);
/* show the reason */
fprintf(stream,"\n Reason: ");
ei_efprint(stream,buf);
break;
case ERL_UNLINK:
fprintf(stream,"UNLINK From: ");
show_pid(stream,&msg->from);
fprintf(stream," To: ");
show_pid(stream,&msg->to);
break;
case ERL_REG_SEND:
fprintf(stream,"REG_SEND From: ");
show_pid(stream,&msg->from);
fprintf(stream," To: %s\n ",msg->toname);
/* show the message */
ei_efprint(stream,buf);
break;
case ERL_GROUP_LEADER:
fprintf(stream,"GROUP_LEADER From: ");
show_pid(stream,&msg->from);
fprintf(stream," To: ");
show_pid(stream,&msg->to);
break;
case ERL_EXIT2:
fprintf(stream,"EXIT2 From: ");
show_pid(stream,&msg->from);
fprintf(stream," To: ");
show_pid(stream,&msg->to);
/* show the reason */
fprintf(stream,"\n Reason: ");
ei_efprint(stream,buf);
break;
/* the new TT stuff below */
case ERL_EXIT_TT:
fprintf(stream,"EXIT_TT From: ");
show_pid(stream,&msg->from);
fprintf(stream," To: ");
show_pid(stream,&msg->to);
fprintf(stream,"\n ");
show_trace(stream,&msg->token);
/* show the reason */
fprintf(stream,"\n Reason: ");
ei_efprint(stream,buf);
break;
case ERL_EXIT2_TT:
fprintf(stream,"EXIT2_TT From: ");
show_pid(stream,&msg->from);
fprintf(stream," To: ");
show_pid(stream,&msg->to);
fprintf(stream,"\n ");
show_trace(stream,&msg->token);
/* show the reason */
fprintf(stream,"\n Reason: ");
ei_efprint(stream,buf);
break;
case ERL_SEND_TT:
fprintf(stream,"SEND_TT To: ");
show_pid(stream,&msg->to);
fprintf(stream,"\n ");
show_trace(stream,&msg->token);
fprintf(stream,"\n ");
/* show the message */
ei_efprint(stream,buf);
break;
case ERL_REG_SEND_TT:
fprintf(stream,"REG_SEND_TT From: ");
show_pid(stream,&msg->from);
fprintf(stream," To: %s\n ",msg->toname);
show_trace(stream,&msg->token);
fprintf(stream,"\n ");
/* show the message */
ei_efprint(stream,buf);
break;
default:
fprintf(stream,"Unknown message type: %ld",msg->msgtype);
}
fprintf(stream,"\n");
}
void show_regs(struct pt_regs *regs)
{
__show_regs(regs, 1);
show_trace(NULL, regs, ®s->sp, regs->bp);
}
void dump_stack(void)
{
unsigned long stack;
show_trace(current, &stack);
}
