mirror of https://gitee.com/openkylin/linux.git
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
/*
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* Copyright (C) 1991, 1992 Linus Torvalds
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* Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
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*/
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#ifndef DUMPSTACK_H
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#define DUMPSTACK_H
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#ifdef CONFIG_X86_32
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#define STACKSLOTS_PER_LINE 8
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#define get_bp(bp) asm("movl %%ebp, %0" : "=r" (bp) :)
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#else
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#define STACKSLOTS_PER_LINE 4
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#define get_bp(bp) asm("movq %%rbp, %0" : "=r" (bp) :)
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#endif
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#include <linux/uaccess.h>
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extern void
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show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
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unsigned long *stack, unsigned long bp, char *log_lvl);
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extern void
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show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
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unsigned long *sp, unsigned long bp, char *log_lvl);
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extern unsigned int code_bytes;
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/* The form of the top of the frame on the stack */
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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 stack_frame_ia32 {
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u32 next_frame;
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u32 return_address;
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};
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static inline unsigned long rewind_frame_pointer(int n)
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{
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struct stack_frame *frame;
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get_bp(frame);
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#ifdef CONFIG_FRAME_POINTER
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while (n--) {
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if (probe_kernel_address(&frame->next_frame, frame))
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break;
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}
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#endif
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return (unsigned long)frame;
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}
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#endif /* DUMPSTACK_H */
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