1*27b03b36SApple OSS Distributions<h2>task_set_emulation_vector</h2> 2*27b03b36SApple OSS Distributions<hr> 3*27b03b36SApple OSS Distributions<p> 4*27b03b36SApple OSS Distributions<strong>Function</strong> - Establish the target task's user-level system call handlers. 5*27b03b36SApple OSS Distributions<h3>SYNOPSIS</h3> 6*27b03b36SApple OSS Distributions<pre> 7*27b03b36SApple OSS Distributions<strong>kern_return_t task_set_emulation_vector</strong> 8*27b03b36SApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*27b03b36SApple OSS Distributions <strong>int</strong> <var>vector_start</var>, 10*27b03b36SApple OSS Distributions <strong>emulation_vector_t</strong> <var>emulation_vector</var>, 11*27b03b36SApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>emulation_vector_count</var><strong>);</strong> 12*27b03b36SApple OSS Distributions</pre> 13*27b03b36SApple OSS Distributions<h3>PARAMETERS</h3> 14*27b03b36SApple OSS Distributions<dl> 15*27b03b36SApple OSS Distributions<p> 16*27b03b36SApple OSS Distributions<dt> <var>task</var> 17*27b03b36SApple OSS Distributions<dd> 18*27b03b36SApple OSS Distributions[in task send right] 19*27b03b36SApple OSS DistributionsThe port for the task for which to establish the 20*27b03b36SApple OSS Distributionssystem call handler. 21*27b03b36SApple OSS Distributions<p> 22*27b03b36SApple OSS Distributions<dt> <var>vector_start</var> 23*27b03b36SApple OSS Distributions<dd> 24*27b03b36SApple OSS Distributions[in scalar] 25*27b03b36SApple OSS DistributionsThe syscall number corresponding to the first element of 26*27b03b36SApple OSS Distributions<var>emulation_vector</var>. 27*27b03b36SApple OSS Distributions<p> 28*27b03b36SApple OSS Distributions<dt> <var>emulation_vector</var> 29*27b03b36SApple OSS Distributions<dd> 30*27b03b36SApple OSS Distributions[pointer to in array of <strong>vm_address_t</strong>] 31*27b03b36SApple OSS DistributionsAn array of routine entrypoints 32*27b03b36SApple OSS Distributionsfor the system calls starting with syscall number <var>vector_start</var>. 33*27b03b36SApple OSS Distributions<p> 34*27b03b36SApple OSS Distributions<dt> <var>emulation_vector_count</var> 35*27b03b36SApple OSS Distributions<dd> 36*27b03b36SApple OSS Distributions[in scalar] 37*27b03b36SApple OSS DistributionsThe number of elements in <var>emulation_vector</var>. 38*27b03b36SApple OSS Distributions</dl> 39*27b03b36SApple OSS Distributions<h3>DESCRIPTION</h3> 40*27b03b36SApple OSS Distributions<p> 41*27b03b36SApple OSS DistributionsThe <strong>task_set_emulation_vector</strong> function establishes 42*27b03b36SApple OSS Distributionsa handler within the task 43*27b03b36SApple OSS Distributionsfor a set of system calls. When a thread executes a system call 44*27b03b36SApple OSS Distributionswith one of these 45*27b03b36SApple OSS Distributionsnumbers, the system call will be redirected to the corresponding 46*27b03b36SApple OSS Distributionsroutine within 47*27b03b36SApple OSS Distributionsthe task's address space. 48*27b03b36SApple OSS Distributions<p> 49*27b03b36SApple OSS DistributionsThese emulation handler addresses are inherited by child processes. 50*27b03b36SApple OSS Distributions<h3>NOTES</h3> 51*27b03b36SApple OSS Distributions<p> 52*27b03b36SApple OSS DistributionsThis interface is machine word length specific because of the 53*27b03b36SApple OSS Distributionsvirtual addresses 54*27b03b36SApple OSS Distributionsin the <var>emulation_vector</var> parameter. 55*27b03b36SApple OSS Distributions<h3>RETURN VALUES</h3> 56*27b03b36SApple OSS Distributions<p> 57*27b03b36SApple OSS DistributionsOnly generic errors apply. 58*27b03b36SApple OSS Distributions<h3>RELATED INFORMATION</h3> 59*27b03b36SApple OSS Distributions<p> 60*27b03b36SApple OSS DistributionsFunctions: 61*27b03b36SApple OSS Distributions<a href="task_get_emulation_vector.html"><strong>task_get_emulation_vector</strong></a>. 62