Lines Matching refs:state
31 bool default_next_frame(struct unwind_state *state);
33 void unwind_start(struct unwind_state *state,
35 bool unwind_next_frame(struct unwind_state *state);
36 unsigned long unwind_get_return_address(struct unwind_state *state);
38 static inline bool unwind_done(struct unwind_state *state)
40 return state->stack_info.type == STACK_TYPE_UNKNOWN;
43 static inline bool unwind_error(struct unwind_state *state)
45 return state->error;
50 static inline unsigned long unwind_graph_addr(struct unwind_state *state,
53 return ftrace_graph_ret_addr(state->task, &state->graph_idx,
57 static __always_inline void __unwind_start(struct unwind_state *state,
60 memset(state, 0, sizeof(*state));
62 state->sp = regs->regs[3];
63 state->pc = regs->csr_era;
64 state->ra = regs->regs[1];
65 state->fp = regs->regs[22];
67 state->sp = thread_saved_fp(task);
68 state->pc = thread_saved_ra(task);
69 state->ra = 0;
70 state->fp = 0;
72 state->sp = (unsigned long)__builtin_frame_address(0);
73 state->pc = (unsigned long)__builtin_return_address(0);
74 state->ra = 0;
75 state->fp = 0;
77 state->task = task;
78 get_stack_info(state->sp, state->task, &state->stack_info);
79 state->pc = unwind_graph_addr(state, state->pc, state->sp);
82 static __always_inline unsigned long __unwind_get_return_address(struct unwind_state *state)
84 if (unwind_done(state))
87 return __kernel_text_address(state->pc) ? state->pc : 0;