5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_UML_STACKTRACE_H
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#define _ASM_UML_STACKTRACE_H
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#include <linux/uaccess.h>
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#include <linux/ptrace.h>
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struct stack_frame {
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struct stack_frame *next_frame;
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unsigned long return_address;
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};
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struct stacktrace_ops {
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void (*address)(void *data, unsigned long address, int reliable);
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};
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#ifdef CONFIG_FRAME_POINTER
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static inline unsigned long
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get_frame_pointer(struct task_struct *task, struct pt_regs *segv_regs)
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{
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if (!task || task == current)
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return segv_regs ? PT_REGS_BP(segv_regs) : current_bp();
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return KSTK_EBP(task);
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}
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#else
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static inline unsigned long
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get_frame_pointer(struct task_struct *task, struct pt_regs *segv_regs)
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{
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return 0;
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}
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#endif
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static inline unsigned long
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*get_stack_pointer(struct task_struct *task, struct pt_regs *segv_regs)
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{
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if (!task || task == current)
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return segv_regs ? (unsigned long *)PT_REGS_SP(segv_regs) : current_sp();
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return (unsigned long *)KSTK_ESP(task);
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}
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void dump_trace(struct task_struct *tsk, const struct stacktrace_ops *ops, void *data);
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#endif /* _ASM_UML_STACKTRACE_H */
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