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UNW_INIT_REMOTE(3)	     Programming Library	    UNW_INIT_REMOTE(3)

NAME
       unw_init_remote -- initialize cursor for	remote unwinding

SYNOPSIS
       #include	<libunwind.h>

       int unw_init_remote(unw_cursor_t	*c, unw_addr_space_t as, void *arg);

DESCRIPTION
       The  unw_init_remote() routine initializes the unwind cursor pointed to
       by c for	unwinding in the address space identified by as.  The as argu-
       ment can	either be set to unw_local_addr_space (local address space) or
       to an arbitrary address space created with unw_create_addr_space().

       The arg void-pointer tells the address space exactly what entity	should
       be  unwound. For	example, if unw_local_addr_space is passed in as, then
       arg needs to be a pointer to a context  structure  containing  the  ma-
       chine-state  of the initial stack frame.	 However, other	address-spaces
       may instead expect a process-id,	a thread-id, or	a pointer to an	 arbi-
       trary  structure	 which identifies the stack-frame chain	to be unwound.
       In other	words, the interpretation of arg is entirely dependent on  the
       address-space  in  use;	libunwind never	interprets the argument	in any
       way on its own.

       Note that unw_init_remote() can be used to initiate  unwinding  in  any
       process,	 including  the	 local process in which	the unwinder itself is
       running.	However, for local unwinding, it is  generally	preferable  to
       use  unw_init_local()  instead, because it is easier to use and because
       it may perform better.

RETURN VALUE
       On successful completion, unw_init_remote() returns 0.	Otherwise  the
       negative	value of one of	the error-codes	below is returned.

THREAD AND SIGNAL SAFETY
       unw_init_remote()  is thread-safe. If the local address-space is	passed
       in argument as, this routine is also safe to use	from a signal handler.

ERRORS
       UNW_EINVAL
	       unw_init_remote() was called in a version  of  libunwind	 which
	      supports local unwinding only (this normally happens when	defin-
	      ing UNW_LOCAL_ONLY before	including <libunwind.h>	and then call-
	      ing unw_init_remote()).

       UNW_EUNSPEC
	       An unspecified error occurred.

       UNW_EBADREG
	       A register needed by unw_init_remote() wasn't accessible.

SEE ALSO
       libunwind(3), unw_create_addr_space(3), unw_init_local(3)

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

Programming Library		16 August 2007		    UNW_INIT_REMOTE(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | THREAD AND SIGNAL SAFETY | ERRORS | SEE ALSO | AUTHOR

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