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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
970e51fe DW |
2 | #ifndef _ASM_UML_STACKTRACE_H |
3 | #define _ASM_UML_STACKTRACE_H | |
4 | ||
5 | #include <linux/uaccess.h> | |
6 | #include <linux/ptrace.h> | |
7 | ||
8 | struct stack_frame { | |
9 | struct stack_frame *next_frame; | |
10 | unsigned long return_address; | |
11 | }; | |
12 | ||
13 | struct stacktrace_ops { | |
14 | void (*address)(void *data, unsigned long address, int reliable); | |
15 | }; | |
16 | ||
17 | #ifdef CONFIG_FRAME_POINTER | |
18 | static inline unsigned long | |
19 | get_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 | |
26 | static inline unsigned long | |
27 | get_frame_pointer(struct task_struct *task, struct pt_regs *segv_regs) | |
28 | { | |
29 | return 0; | |
30 | } | |
31 | #endif | |
32 | ||
33 | static 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 | ||
41 | void dump_trace(struct task_struct *tsk, const struct stacktrace_ops *ops, void *data); | |
42 | ||
43 | #endif /* _ASM_UML_STACKTRACE_H */ |