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UNW_FLUSH_CACHE(3)           Programming Library            UNW_FLUSH_CACHE(3)

NAME

unw_flush_cache -- flush cached info

SYNOPSIS

#include <libunwind.h> void unw_flush_cache(unw_addr_space_t as, unw_word_t lo, unw_word_t hi);

DESCRIPTION

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.

RETURN VALUE

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.

SEE ALSO

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

AUTHOR

David Mosberger-Tang Email: dmosberger@gmail.com WWW: http://www.nongnu.org/libunwind/. Programming Library 02 December 2016 UNW_FLUSH_CACHE(3)

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