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a51cf49031
Add interface for configurable dwarf cache size * Use item size and round up to nearest power of 2. * Initial cache still exists in BSS. Without this, it means we would fail backtrace when out of memory. The test-mem test fails without this
89 lines
1.5 KiB
Groff
89 lines
1.5 KiB
Groff
'\" t
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.\" Manual page created with latex2man on Fri Jan 13 08:33:21 PST 2017
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.\" NOTE: This file is generated, DO NOT EDIT.
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.de Vb
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.ft CW
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.nf
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..
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.de Ve
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.ft R
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.fi
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..
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.TH "UNW\\_SET\\_CACHE\\_SIZE" "3" "13 January 2017" "Programming Library " "Programming Library "
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.SH NAME
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unw_set_cache_size
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\-\- set unwind cache size
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.PP
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.SH SYNOPSIS
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.PP
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#include <libunwind.h>
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.br
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.PP
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int
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unw_set_cache_size(unw_addr_space_t
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as,
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size_t
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size,
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int
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flag);
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.br
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.PP
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.SH DESCRIPTION
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.PP
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The unw_set_cache_size()
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routine sets the cache size of
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address space as
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to hold at least as many items as given by
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argument size\&.
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It may hold more items as determined by the
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implementation. To disable caching, call
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unw_set_caching_policy)
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with a policy of
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UNW_CACHE_NONE\&.
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Flag is currently unused and must be 0.
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.PP
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.SH RETURN VALUE
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.PP
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On successful completion, unw_set_cache_size()
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returns 0.
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Otherwise the negative value of one of the error\-codes below is
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returned.
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.PP
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.SH THREAD AND SIGNAL SAFETY
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.PP
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unw_set_cache_size()
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is thread\-safe but \fInot\fP
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safe
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to use from a signal handler.
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.PP
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.SH ERRORS
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.PP
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.TP
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UNW_ENOMEM
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The desired cache size could not be
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established because the application is out of memory.
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.PP
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.SH SEE ALSO
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.PP
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libunwind(3),
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unw_create_addr_space(3),
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unw_set_caching_policy(3),
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unw_flush_cache(3)
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.PP
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.SH AUTHOR
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.PP
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Dave Watson
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.br
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Email: \fBdade.watson@gmail.com\fP
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.br
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WWW: \fBhttp://www.nongnu.org/libunwind/\fP\&.
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.\" NOTE: This file is generated, DO NOT EDIT.
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