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 */

 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 */