arch/um/include/asm/stacktrace.h

   1 #ifndef _ASM_UML_STACKTRACE_H
   2 #define _ASM_UML_STACKTRACE_H
   3
   4 #include <linux/uaccess.h>
   5 #include <linux/ptrace.h>
   6
   7 struct stack_frame {
   8         struct stack_frame *next_frame;
   9         unsigned long return_address;
  10 };
  11
  12 struct stacktrace_ops {
  13         void (*address)(void *data, unsigned long address, int reliable);
  14 };
  15
  16 #ifdef CONFIG_FRAME_POINTER
  17 static inline unsigned long
  18 get_frame_pointer(struct task_struct *task, struct pt_regs *segv_regs)
  19 {
  20         if (!task || task == current)
  21                 return segv_regs ? PT_REGS_BP(segv_regs) : current_bp();
  22         return KSTK_EBP(task);
  23 }
  24 #else
  25 static inline unsigned long
  26 get_frame_pointer(struct task_struct *task, struct pt_regs *segv_regs)
  27 {
  28         return 0;
  29 }
  30 #endif
  31
  32 static inline unsigned long
  33 *get_stack_pointer(struct task_struct *task, struct pt_regs *segv_regs)
  34 {
  35         if (!task || task == current)
  36                 return segv_regs ? (unsigned long *)PT_REGS_SP(segv_regs) : current_sp();
  37         return (unsigned long *)KSTK_ESP(task);
  38 }
  39
  40 void dump_trace(struct task_struct *tsk, const struct stacktrace_ops *ops, void *data);
  41
  42 #endif /* _ASM_UML_STACKTRACE_H */