arch/x86/kernel/dumpstack.h

   1 /*
   2  *  Copyright (C) 1991, 1992  Linus Torvalds
   3  *  Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
   4  */
   5
   6 #ifndef DUMPSTACK_H
   7 #define DUMPSTACK_H
   8
   9 #ifdef CONFIG_X86_32
  10 #define STACKSLOTS_PER_LINE 8
  11 #define get_bp(bp) asm("movl %%ebp, %0" : "=r" (bp) :)
  12 #else
  13 #define STACKSLOTS_PER_LINE 4
  14 #define get_bp(bp) asm("movq %%rbp, %0" : "=r" (bp) :)
  15 #endif
  16
  17 extern unsigned long
  18 print_context_stack(struct thread_info *tinfo,
  19                 unsigned long *stack, unsigned long bp,
  20                 const struct stacktrace_ops *ops, void *data,
  21                 unsigned long *end, int *graph);
  22
  23 extern void
  24 show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
  25                 unsigned long *stack, unsigned long bp, char *log_lvl);
  26
  27 extern void
  28 show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
  29                 unsigned long *sp, unsigned long bp, char *log_lvl);
  30
  31 extern unsigned int code_bytes;
  32 extern int kstack_depth_to_print;
  33
  34 /* The form of the top of the frame on the stack */
  35 struct stack_frame {
  36         struct stack_frame *next_frame;
  37         unsigned long return_address;
  38 };
  39 #endif