1*c54f35caSApple OSS Distributions<h2>task_set_emulation_vector</h2> 2*c54f35caSApple OSS Distributions<hr> 3*c54f35caSApple OSS Distributions<p> 4*c54f35caSApple OSS Distributions<strong>Function</strong> - Establish the target task's user-level system call handlers. 5*c54f35caSApple OSS Distributions<h3>SYNOPSIS</h3> 6*c54f35caSApple OSS Distributions<pre> 7*c54f35caSApple OSS Distributions<strong>kern_return_t task_set_emulation_vector</strong> 8*c54f35caSApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*c54f35caSApple OSS Distributions <strong>int</strong> <var>vector_start</var>, 10*c54f35caSApple OSS Distributions <strong>emulation_vector_t</strong> <var>emulation_vector</var>, 11*c54f35caSApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>emulation_vector_count</var><strong>);</strong> 12*c54f35caSApple OSS Distributions</pre> 13*c54f35caSApple OSS Distributions<h3>PARAMETERS</h3> 14*c54f35caSApple OSS Distributions<dl> 15*c54f35caSApple OSS Distributions<p> 16*c54f35caSApple OSS Distributions<dt> <var>task</var> 17*c54f35caSApple OSS Distributions<dd> 18*c54f35caSApple OSS Distributions[in task send right] 19*c54f35caSApple OSS DistributionsThe port for the task for which to establish the 20*c54f35caSApple OSS Distributionssystem call handler. 21*c54f35caSApple OSS Distributions<p> 22*c54f35caSApple OSS Distributions<dt> <var>vector_start</var> 23*c54f35caSApple OSS Distributions<dd> 24*c54f35caSApple OSS Distributions[in scalar] 25*c54f35caSApple OSS DistributionsThe syscall number corresponding to the first element of 26*c54f35caSApple OSS Distributions<var>emulation_vector</var>. 27*c54f35caSApple OSS Distributions<p> 28*c54f35caSApple OSS Distributions<dt> <var>emulation_vector</var> 29*c54f35caSApple OSS Distributions<dd> 30*c54f35caSApple OSS Distributions[pointer to in array of <strong>vm_address_t</strong>] 31*c54f35caSApple OSS DistributionsAn array of routine entrypoints 32*c54f35caSApple OSS Distributionsfor the system calls starting with syscall number <var>vector_start</var>. 33*c54f35caSApple OSS Distributions<p> 34*c54f35caSApple OSS Distributions<dt> <var>emulation_vector_count</var> 35*c54f35caSApple OSS Distributions<dd> 36*c54f35caSApple OSS Distributions[in scalar] 37*c54f35caSApple OSS DistributionsThe number of elements in <var>emulation_vector</var>. 38*c54f35caSApple OSS Distributions</dl> 39*c54f35caSApple OSS Distributions<h3>DESCRIPTION</h3> 40*c54f35caSApple OSS Distributions<p> 41*c54f35caSApple OSS DistributionsThe <strong>task_set_emulation_vector</strong> function establishes 42*c54f35caSApple OSS Distributionsa handler within the task 43*c54f35caSApple OSS Distributionsfor a set of system calls. When a thread executes a system call 44*c54f35caSApple OSS Distributionswith one of these 45*c54f35caSApple OSS Distributionsnumbers, the system call will be redirected to the corresponding 46*c54f35caSApple OSS Distributionsroutine within 47*c54f35caSApple OSS Distributionsthe task's address space. 48*c54f35caSApple OSS Distributions<p> 49*c54f35caSApple OSS DistributionsThese emulation handler addresses are inherited by child processes. 50*c54f35caSApple OSS Distributions<h3>NOTES</h3> 51*c54f35caSApple OSS Distributions<p> 52*c54f35caSApple OSS DistributionsThis interface is machine word length specific because of the 53*c54f35caSApple OSS Distributionsvirtual addresses 54*c54f35caSApple OSS Distributionsin the <var>emulation_vector</var> parameter. 55*c54f35caSApple OSS Distributions<h3>RETURN VALUES</h3> 56*c54f35caSApple OSS Distributions<p> 57*c54f35caSApple OSS DistributionsOnly generic errors apply. 58*c54f35caSApple OSS Distributions<h3>RELATED INFORMATION</h3> 59*c54f35caSApple OSS Distributions<p> 60*c54f35caSApple OSS DistributionsFunctions: 61*c54f35caSApple OSS Distributions<a href="task_get_emulation_vector.html"><strong>task_get_emulation_vector</strong></a>. 62