projects / mirror_ubuntu-focal-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 */ |