Lines Matching full:frame

27  * This structure stores the backtrace information of a particular stack frame
29  * xtensa_cpu_get_next_backtrace_frame() function to traverse each frame
31  * frame's caller, thus a next_pc of 0 indicates that the current frame
32  * is the last frame on the stack.
38 	uint32_t pc;       /* PC of the current frame */
39 	uint32_t sp;       /* SP of the current frame */
40 	uint32_t next_pc;  /* PC of the current frame's caller */
44  * Get the first frame of the current stack's backtrace
55  * @param[out] pc       PC of the first frame in the backtrace
56  * @param[out] sp       SP of the first frame in the backtrace
57  * @param[out] next_pc  PC of the first frame's caller
66  * @brief Get the next frame on a stack for backtracing
68  * Given a stack frame(i), this function will obtain the next
69  * stack frame(i-1) on the same call stack (i.e. the caller of frame(i)).
72  * Entry Conditions: Frame structure containing valid SP and next_pc
74  *  - Frame structure updated with SP and PC of frame(i-1).
75  *    next_pc now points to frame(i-2).
76  *  - If a next_pc of 0 is returned, it indicates that frame(i-1)
77  *    is last frame on the stack
79  * @param[inout] frame  Pointer to frame structure
82  *  - True if the SP and PC of the next frame(i-1) are sane
85 bool xtensa_backtrace_get_next_frame(struct xtensa_backtrace_frame_t *frame);