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\begin{Name}{3}{\_U\_dyn\_register}{David Mosberger-Tang}{Programming Library}{\_U\_dyn\_register}\_U\_dyn\_register -- register unwind-info for dynamically generated code
\end{Name}

\section{Synopsis}

\File{\#include $<$libunwind.h$>$}\\

\Type{void} \Func{\_U\_dyn\_register}(\Type{unw\_dyn\_info\_t~*}\Var{di});\\

\section{Description}

The \Func{\_U\_dyn\_register}() routine registers unwind-info for a
dynamically generated procedure.  The procedure's unwind-info is
described by a structure of type \Type{unw\_dyn\_info\_t} (see
\SeeAlso{libunwind-dynamic(3)}).  A pointer to this structure is
passed in argument \Var{di}.

The \Func{\_U\_dyn\_register}() routine is guaranteed to execute in
constant time (in the absence of contention from concurrent calls to
\Func{\_U\_dyn\_register}() or \Func{\_U\_dyn\_cancel}()).


\section{Thread and Signal Safety}

\Func{\_U\_dyn\_register}() is thread-safe but \emph{not} safe to use
from a signal handler.

\section{See Also}

\SeeAlso{libunwind-dynamic(3)}, \SeeAlso{\_U\_dyn\_cancel(3)}

\section{Author}

\noindent
David Mosberger-Tang\\
Hewlett-Packard Labs\\
Palo-Alto, CA 94304\\
Email: \Email{davidm@hpl.hp.com}\\
WWW: \URL{http://www.hpl.hp.com/research/linux/libunwind/}.
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