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