Function esp_idf_svc::sys::esp_backtrace_get_start

pub unsafe extern "C" fn esp_backtrace_get_start(
    pc: *mut u32,
    sp: *mut u32,
    next_pc: *mut u32,
)

Get the first frame of the current stack’s backtrace

Given the following function call flow (B -> A -> X -> esp_backtrace_get_start), this function will do the following.

• Flush CPU registers and window frames onto the current stack
• Return PC and SP of function A (i.e. start of the stack’s backtrace)
• Return PC of function B (i.e. next_pc)

@note This function is implemented in assembly

@param[out] pc PC of the first frame in the backtrace @param[out] sp SP of the first frame in the backtrace @param[out] next_pc PC of the first frame’s caller