| /* SPDX-License-Identifier: GPL-2.0 */ | |
| #ifndef _ASM_UML_STACKTRACE_H | |
| #define _ASM_UML_STACKTRACE_H | |
| #include <linux/uaccess.h> | |
| #include <linux/ptrace.h> | |
| struct stack_frame { | |
| struct stack_frame *next_frame; | |
| unsigned long return_address; | |
| }; | |
| struct stacktrace_ops { | |
| void (*address)(void *data, unsigned long address, int reliable); | |
| }; | |
| #ifdef CONFIG_FRAME_POINTER | |
| static inline unsigned long | |
| get_frame_pointer(struct task_struct *task, struct pt_regs *segv_regs) | |
| { | |
| if (!task || task == current) | |
| return segv_regs ? PT_REGS_BP(segv_regs) : current_bp(); | |
| return KSTK_EBP(task); | |
| } | |
| #else | |
| static inline unsigned long | |
| get_frame_pointer(struct task_struct *task, struct pt_regs *segv_regs) | |
| { | |
| return 0; | |
| } | |
| #endif | |
| static inline unsigned long | |
| *get_stack_pointer(struct task_struct *task, struct pt_regs *segv_regs) | |
| { | |
| if (!task || task == current) | |
| return segv_regs ? (unsigned long *)PT_REGS_SP(segv_regs) : current_sp(); | |
| return (unsigned long *)KSTK_ESP(task); | |
| } | |
| void dump_trace(struct task_struct *tsk, const struct stacktrace_ops *ops, void *data); | |
| #endif /* _ASM_UML_STACKTRACE_H */ |