1*699cd480SApple OSS Distributions<h2>task_set_emulation_vector</h2> 2*699cd480SApple OSS Distributions<hr> 3*699cd480SApple OSS Distributions<p> 4*699cd480SApple OSS Distributions<strong>Function</strong> - Establish the target task's user-level system call handlers. 5*699cd480SApple OSS Distributions<h3>SYNOPSIS</h3> 6*699cd480SApple OSS Distributions<pre> 7*699cd480SApple OSS Distributions<strong>kern_return_t task_set_emulation_vector</strong> 8*699cd480SApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*699cd480SApple OSS Distributions <strong>int</strong> <var>vector_start</var>, 10*699cd480SApple OSS Distributions <strong>emulation_vector_t</strong> <var>emulation_vector</var>, 11*699cd480SApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>emulation_vector_count</var><strong>);</strong> 12*699cd480SApple OSS Distributions</pre> 13*699cd480SApple OSS Distributions<h3>PARAMETERS</h3> 14*699cd480SApple OSS Distributions<dl> 15*699cd480SApple OSS Distributions<p> 16*699cd480SApple OSS Distributions<dt> <var>task</var> 17*699cd480SApple OSS Distributions<dd> 18*699cd480SApple OSS Distributions[in task send right] 19*699cd480SApple OSS DistributionsThe port for the task for which to establish the 20*699cd480SApple OSS Distributionssystem call handler. 21*699cd480SApple OSS Distributions<p> 22*699cd480SApple OSS Distributions<dt> <var>vector_start</var> 23*699cd480SApple OSS Distributions<dd> 24*699cd480SApple OSS Distributions[in scalar] 25*699cd480SApple OSS DistributionsThe syscall number corresponding to the first element of 26*699cd480SApple OSS Distributions<var>emulation_vector</var>. 27*699cd480SApple OSS Distributions<p> 28*699cd480SApple OSS Distributions<dt> <var>emulation_vector</var> 29*699cd480SApple OSS Distributions<dd> 30*699cd480SApple OSS Distributions[pointer to in array of <strong>vm_address_t</strong>] 31*699cd480SApple OSS DistributionsAn array of routine entrypoints 32*699cd480SApple OSS Distributionsfor the system calls starting with syscall number <var>vector_start</var>. 33*699cd480SApple OSS Distributions<p> 34*699cd480SApple OSS Distributions<dt> <var>emulation_vector_count</var> 35*699cd480SApple OSS Distributions<dd> 36*699cd480SApple OSS Distributions[in scalar] 37*699cd480SApple OSS DistributionsThe number of elements in <var>emulation_vector</var>. 38*699cd480SApple OSS Distributions</dl> 39*699cd480SApple OSS Distributions<h3>DESCRIPTION</h3> 40*699cd480SApple OSS Distributions<p> 41*699cd480SApple OSS DistributionsThe <strong>task_set_emulation_vector</strong> function establishes 42*699cd480SApple OSS Distributionsa handler within the task 43*699cd480SApple OSS Distributionsfor a set of system calls. When a thread executes a system call 44*699cd480SApple OSS Distributionswith one of these 45*699cd480SApple OSS Distributionsnumbers, the system call will be redirected to the corresponding 46*699cd480SApple OSS Distributionsroutine within 47*699cd480SApple OSS Distributionsthe task's address space. 48*699cd480SApple OSS Distributions<p> 49*699cd480SApple OSS DistributionsThese emulation handler addresses are inherited by child processes. 50*699cd480SApple OSS Distributions<h3>NOTES</h3> 51*699cd480SApple OSS Distributions<p> 52*699cd480SApple OSS DistributionsThis interface is machine word length specific because of the 53*699cd480SApple OSS Distributionsvirtual addresses 54*699cd480SApple OSS Distributionsin the <var>emulation_vector</var> parameter. 55*699cd480SApple OSS Distributions<h3>RETURN VALUES</h3> 56*699cd480SApple OSS Distributions<p> 57*699cd480SApple OSS DistributionsOnly generic errors apply. 58*699cd480SApple OSS Distributions<h3>RELATED INFORMATION</h3> 59*699cd480SApple OSS Distributions<p> 60*699cd480SApple OSS DistributionsFunctions: 61*699cd480SApple OSS Distributions<a href="task_get_emulation_vector.html"><strong>task_get_emulation_vector</strong></a>. 62