DragonFly On-Line Manual Pages
UNW_FLUSH_CACHE(3) Programming Library UNW_FLUSH_CACHE(3)
unw_flush_cache -- flush cached info
void unw_flush_cache(unw_addr_space_t as, unw_word_t lo, unw_word_t
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
As a special case, if arguments lo and hi are both 0, all information
cached on behalf of address space as is flushed.
The unw_flush_cache() routine cannot fail and does not return a value.
THREAD AND SIGNAL SAFETY
The unw_flush_cache() routine is thread-safe as well as safe to use
from a signal handler.
libunwind(3), unw_set_caching_policy(3) unw_set_cache_size(3)
Programming Library 02 December 2016 UNW_FLUSH_CACHE(3)