1*4f1223e8SApple OSS Distributions<h2>task_set_emulation_vector</h2> 2*4f1223e8SApple OSS Distributions<hr> 3*4f1223e8SApple OSS Distributions<p> 4*4f1223e8SApple OSS Distributions<strong>Function</strong> - Establish the target task's user-level system call handlers. 5*4f1223e8SApple OSS Distributions<h3>SYNOPSIS</h3> 6*4f1223e8SApple OSS Distributions<pre> 7*4f1223e8SApple OSS Distributions<strong>kern_return_t task_set_emulation_vector</strong> 8*4f1223e8SApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*4f1223e8SApple OSS Distributions <strong>int</strong> <var>vector_start</var>, 10*4f1223e8SApple OSS Distributions <strong>emulation_vector_t</strong> <var>emulation_vector</var>, 11*4f1223e8SApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>emulation_vector_count</var><strong>);</strong> 12*4f1223e8SApple OSS Distributions</pre> 13*4f1223e8SApple OSS Distributions<h3>PARAMETERS</h3> 14*4f1223e8SApple OSS Distributions<dl> 15*4f1223e8SApple OSS Distributions<p> 16*4f1223e8SApple OSS Distributions<dt> <var>task</var> 17*4f1223e8SApple OSS Distributions<dd> 18*4f1223e8SApple OSS Distributions[in task send right] 19*4f1223e8SApple OSS DistributionsThe port for the task for which to establish the 20*4f1223e8SApple OSS Distributionssystem call handler. 21*4f1223e8SApple OSS Distributions<p> 22*4f1223e8SApple OSS Distributions<dt> <var>vector_start</var> 23*4f1223e8SApple OSS Distributions<dd> 24*4f1223e8SApple OSS Distributions[in scalar] 25*4f1223e8SApple OSS DistributionsThe syscall number corresponding to the first element of 26*4f1223e8SApple OSS Distributions<var>emulation_vector</var>. 27*4f1223e8SApple OSS Distributions<p> 28*4f1223e8SApple OSS Distributions<dt> <var>emulation_vector</var> 29*4f1223e8SApple OSS Distributions<dd> 30*4f1223e8SApple OSS Distributions[pointer to in array of <strong>vm_address_t</strong>] 31*4f1223e8SApple OSS DistributionsAn array of routine entrypoints 32*4f1223e8SApple OSS Distributionsfor the system calls starting with syscall number <var>vector_start</var>. 33*4f1223e8SApple OSS Distributions<p> 34*4f1223e8SApple OSS Distributions<dt> <var>emulation_vector_count</var> 35*4f1223e8SApple OSS Distributions<dd> 36*4f1223e8SApple OSS Distributions[in scalar] 37*4f1223e8SApple OSS DistributionsThe number of elements in <var>emulation_vector</var>. 38*4f1223e8SApple OSS Distributions</dl> 39*4f1223e8SApple OSS Distributions<h3>DESCRIPTION</h3> 40*4f1223e8SApple OSS Distributions<p> 41*4f1223e8SApple OSS DistributionsThe <strong>task_set_emulation_vector</strong> function establishes 42*4f1223e8SApple OSS Distributionsa handler within the task 43*4f1223e8SApple OSS Distributionsfor a set of system calls. When a thread executes a system call 44*4f1223e8SApple OSS Distributionswith one of these 45*4f1223e8SApple OSS Distributionsnumbers, the system call will be redirected to the corresponding 46*4f1223e8SApple OSS Distributionsroutine within 47*4f1223e8SApple OSS Distributionsthe task's address space. 48*4f1223e8SApple OSS Distributions<p> 49*4f1223e8SApple OSS DistributionsThese emulation handler addresses are inherited by child processes. 50*4f1223e8SApple OSS Distributions<h3>NOTES</h3> 51*4f1223e8SApple OSS Distributions<p> 52*4f1223e8SApple OSS DistributionsThis interface is machine word length specific because of the 53*4f1223e8SApple OSS Distributionsvirtual addresses 54*4f1223e8SApple OSS Distributionsin the <var>emulation_vector</var> parameter. 55*4f1223e8SApple OSS Distributions<h3>RETURN VALUES</h3> 56*4f1223e8SApple OSS Distributions<p> 57*4f1223e8SApple OSS DistributionsOnly generic errors apply. 58*4f1223e8SApple OSS Distributions<h3>RELATED INFORMATION</h3> 59*4f1223e8SApple OSS Distributions<p> 60*4f1223e8SApple OSS DistributionsFunctions: 61*4f1223e8SApple OSS Distributions<a href="task_get_emulation_vector.html"><strong>task_get_emulation_vector</strong></a>. 62