1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _LINUX_UNWINDER_H 3*4882a593Smuzhiyun #define _LINUX_UNWINDER_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <asm/stacktrace.h> 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun struct unwinder { 8*4882a593Smuzhiyun const char *name; 9*4882a593Smuzhiyun struct list_head list; 10*4882a593Smuzhiyun int rating; 11*4882a593Smuzhiyun void (*dump)(struct task_struct *, struct pt_regs *, 12*4882a593Smuzhiyun unsigned long *, const struct stacktrace_ops *, void *); 13*4882a593Smuzhiyun }; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun extern int unwinder_init(void); 16*4882a593Smuzhiyun extern int unwinder_register(struct unwinder *); 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun extern void unwind_stack(struct task_struct *, struct pt_regs *, 19*4882a593Smuzhiyun unsigned long *, const struct stacktrace_ops *, 20*4882a593Smuzhiyun void *); 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun extern void stack_reader_dump(struct task_struct *, struct pt_regs *, 23*4882a593Smuzhiyun unsigned long *, const struct stacktrace_ops *, 24*4882a593Smuzhiyun void *); 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /* 27*4882a593Smuzhiyun * Used by fault handling code to signal to the unwinder code that it 28*4882a593Smuzhiyun * should switch to a different unwinder. 29*4882a593Smuzhiyun */ 30*4882a593Smuzhiyun extern int unwinder_faulted; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #endif /* _LINUX_UNWINDER_H */ 33