1*0f4c859eSApple OSS Distributions<h2>task_set_emulation_vector</h2> 2*0f4c859eSApple OSS Distributions<hr> 3*0f4c859eSApple OSS Distributions<p> 4*0f4c859eSApple OSS Distributions<strong>Function</strong> - Establish the target task's user-level system call handlers. 5*0f4c859eSApple OSS Distributions<h3>SYNOPSIS</h3> 6*0f4c859eSApple OSS Distributions<pre> 7*0f4c859eSApple OSS Distributions<strong>kern_return_t task_set_emulation_vector</strong> 8*0f4c859eSApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*0f4c859eSApple OSS Distributions <strong>int</strong> <var>vector_start</var>, 10*0f4c859eSApple OSS Distributions <strong>emulation_vector_t</strong> <var>emulation_vector</var>, 11*0f4c859eSApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>emulation_vector_count</var><strong>);</strong> 12*0f4c859eSApple OSS Distributions</pre> 13*0f4c859eSApple OSS Distributions<h3>PARAMETERS</h3> 14*0f4c859eSApple OSS Distributions<dl> 15*0f4c859eSApple OSS Distributions<p> 16*0f4c859eSApple OSS Distributions<dt> <var>task</var> 17*0f4c859eSApple OSS Distributions<dd> 18*0f4c859eSApple OSS Distributions[in task send right] 19*0f4c859eSApple OSS DistributionsThe port for the task for which to establish the 20*0f4c859eSApple OSS Distributionssystem call handler. 21*0f4c859eSApple OSS Distributions<p> 22*0f4c859eSApple OSS Distributions<dt> <var>vector_start</var> 23*0f4c859eSApple OSS Distributions<dd> 24*0f4c859eSApple OSS Distributions[in scalar] 25*0f4c859eSApple OSS DistributionsThe syscall number corresponding to the first element of 26*0f4c859eSApple OSS Distributions<var>emulation_vector</var>. 27*0f4c859eSApple OSS Distributions<p> 28*0f4c859eSApple OSS Distributions<dt> <var>emulation_vector</var> 29*0f4c859eSApple OSS Distributions<dd> 30*0f4c859eSApple OSS Distributions[pointer to in array of <strong>vm_address_t</strong>] 31*0f4c859eSApple OSS DistributionsAn array of routine entrypoints 32*0f4c859eSApple OSS Distributionsfor the system calls starting with syscall number <var>vector_start</var>. 33*0f4c859eSApple OSS Distributions<p> 34*0f4c859eSApple OSS Distributions<dt> <var>emulation_vector_count</var> 35*0f4c859eSApple OSS Distributions<dd> 36*0f4c859eSApple OSS Distributions[in scalar] 37*0f4c859eSApple OSS DistributionsThe number of elements in <var>emulation_vector</var>. 38*0f4c859eSApple OSS Distributions</dl> 39*0f4c859eSApple OSS Distributions<h3>DESCRIPTION</h3> 40*0f4c859eSApple OSS Distributions<p> 41*0f4c859eSApple OSS DistributionsThe <strong>task_set_emulation_vector</strong> function establishes 42*0f4c859eSApple OSS Distributionsa handler within the task 43*0f4c859eSApple OSS Distributionsfor a set of system calls. When a thread executes a system call 44*0f4c859eSApple OSS Distributionswith one of these 45*0f4c859eSApple OSS Distributionsnumbers, the system call will be redirected to the corresponding 46*0f4c859eSApple OSS Distributionsroutine within 47*0f4c859eSApple OSS Distributionsthe task's address space. 48*0f4c859eSApple OSS Distributions<p> 49*0f4c859eSApple OSS DistributionsThese emulation handler addresses are inherited by child processes. 50*0f4c859eSApple OSS Distributions<h3>NOTES</h3> 51*0f4c859eSApple OSS Distributions<p> 52*0f4c859eSApple OSS DistributionsThis interface is machine word length specific because of the 53*0f4c859eSApple OSS Distributionsvirtual addresses 54*0f4c859eSApple OSS Distributionsin the <var>emulation_vector</var> parameter. 55*0f4c859eSApple OSS Distributions<h3>RETURN VALUES</h3> 56*0f4c859eSApple OSS Distributions<p> 57*0f4c859eSApple OSS DistributionsOnly generic errors apply. 58*0f4c859eSApple OSS Distributions<h3>RELATED INFORMATION</h3> 59*0f4c859eSApple OSS Distributions<p> 60*0f4c859eSApple OSS DistributionsFunctions: 61*0f4c859eSApple OSS Distributions<a href="task_get_emulation_vector.html"><strong>task_get_emulation_vector</strong></a>. 62