Function dr_insert_get_seg_base 

pub unsafe extern "C" fn dr_insert_get_seg_base(
    drcontext: *mut c_void,
    ilist: *mut instrlist_t,
    instr: *mut instr_t,
    seg: reg_id_t,
    reg: reg_id_t,
) -> bool_

Insert code to get the segment base address pointed to by seg into register reg. In Linux, it is only supported with -mangle_app_seg option. In Windows, it only supports getting base address of the TLS segment.

\return whether successful.