unw_flush_cache -- flush cached info

       David Mosberger-Tang
       Email: dmosberger@gmail.com
       WWW: http://www.nongnu.org/libunwind/.

Programming Library                             02 December 2016                              UNW_FLUSH_CACHE(3)

       The  unw_flush_cache()  routine  flushes  all  cached  info  as  it  relates  to  address-range  lo to hi
       (non-inclusive) in the target address-space as.  In addition, all info cached for address-space  as  that
       is  not  tied  to  a  particular  code-range  is  also  flushed.  For example, the address of the dynamic
       registration list is not tied to a code-range and its cached value (if any) is flushed by a call to  this
       routine.  The  address range specified by lo and hi should be understood as a hint: unw_flush_cache() may
       flush more information than requested, but never less. In other words, unw_flush_cache()  may  overflush,
       but not underflush.

       As  a  special case, if arguments lo and hi are both 0, all information cached on behalf of address space
       as is flushed.

       unw_flush_cache -- flush cached info

       The unw_flush_cache() routine cannot fail and does not return a value.

libunwind(3), unw_set_caching_policy(3) unw_set_cache_size(3)

       #include <libunwind.h>

       void unw_flush_cache(unw_addr_space_t as, unw_word_t lo, unw_word_t hi);

       The unw_flush_cache() routine is thread-safe as well as safe to use from a signal handler.