LXR linux/arch/um/include/asm/stacktrace.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _ASM_UML_STACKTRACE_H
   3#define _ASM_UML_STACKTRACE_H
   4
   5#include <linux/uaccess.h>
   6#include <linux/ptrace.h>
   7
   8struct stack_frame {
   9        struct stack_frame *next_frame;
  10        unsigned long return_address;
  11};
  12
  13struct stacktrace_ops {
  14        void (*address)(void *data, unsigned long address, int reliable);
  15};
  16
  17#ifdef CONFIG_FRAME_POINTER
  18static inline unsigned long
  19get_frame_pointer(struct task_struct *task, struct pt_regs *segv_regs)
  20{
  21        if (!task || task == current)
  22                return segv_regs ? PT_REGS_BP(segv_regs) : current_bp();
  23        return KSTK_EBP(task);
  24}
  25#else
  26static inline unsigned long
  27get_frame_pointer(struct task_struct *task, struct pt_regs *segv_regs)
  28{
  29        return 0;
  30}
  31#endif
  32
  33static inline unsigned long
  34*get_stack_pointer(struct task_struct *task, struct pt_regs *segv_regs)
  35{
  36        if (!task || task == current)
  37                return segv_regs ? (unsigned long *)PT_REGS_SP(segv_regs) : current_sp();
  38        return (unsigned long *)KSTK_ESP(task);
  39}
  40
  41void dump_trace(struct task_struct *tsk, const struct stacktrace_ops *ops, void *data);
  42
  43#endif /* _ASM_UML_STACKTRACE_H */
  44