static void show_trace(struct task_struct *task, unsigned long *stack)
{
const unsigned long frame_size =
STACK_FRAME_OVERHEAD + sizeof(struct pt_regs);
register unsigned long __r15 asm ("15");
unsigned long sp;
sp = (unsigned long) stack;
if (!sp)
sp = task ? task->thread.ksp : __r15;
printk("Call Trace:\n");
#ifdef CONFIG_CHECK_STACK
sp = __show_trace(sp,
S390_lowcore.panic_stack + frame_size - 4096,
S390_lowcore.panic_stack + frame_size);
#endif
sp = __show_trace(sp,
S390_lowcore.async_stack + frame_size - ASYNC_SIZE,
S390_lowcore.async_stack + frame_size);
if (task)
__show_trace(sp, (unsigned long) task_stack_page(task),
(unsigned long) task_stack_page(task) + THREAD_SIZE);
else
__show_trace(sp, S390_lowcore.thread_info,
S390_lowcore.thread_info + THREAD_SIZE);
if (!task)
task = current;
debug_show_held_locks(task);
}
void __inc_creation(const char *zeKey, const char *zeFile, long zeLine,
const char *zeMsg, const void *zePtr, int zeSize) {
__show_trace(zeKey, zeFile, zeLine, zeMsg, zePtr);
__creation()[zeKey]++;
__sizeof()[zeKey] = zeSize;
}
void s390_backtrace(struct pt_regs * const regs, unsigned int depth)
{
unsigned long head;
struct stack_frame* head_sf;
if (user_mode (regs))
return;
head = regs->gprs[15];
head_sf = (struct stack_frame*)head;
if (!head_sf->back_chain)
return;
head = head_sf->back_chain;
head = __show_trace(&depth, head, S390_lowcore.async_stack - ASYNC_SIZE,
S390_lowcore.async_stack);
__show_trace(&depth, head, S390_lowcore.thread_info,
S390_lowcore.thread_info + THREAD_SIZE);
}
// to handle static element of agrum library
void __dec_creation(const char *zeKey, const char *zeFile, long zeLine,
const char *zeMsg, const void *zePtr) {
__show_trace(zeKey, zeFile, zeLine, zeMsg, zePtr);
__creation()[zeKey]--;
}
void __inc_deletion(const char *zeKey, const char *zeFile, long zeLine,
const char *zeMsg, const void *zePtr) {
__show_trace(zeKey, zeFile, zeLine, zeMsg, zePtr);
__deletion()[zeKey]++;
}
