1*33de042dSApple OSS Distributions<h2>task_set_emulation_vector</h2> 2*33de042dSApple OSS Distributions<hr> 3*33de042dSApple OSS Distributions<p> 4*33de042dSApple OSS Distributions<strong>Function</strong> - Establish the target task's user-level system call handlers. 5*33de042dSApple OSS Distributions<h3>SYNOPSIS</h3> 6*33de042dSApple OSS Distributions<pre> 7*33de042dSApple OSS Distributions<strong>kern_return_t task_set_emulation_vector</strong> 8*33de042dSApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*33de042dSApple OSS Distributions <strong>int</strong> <var>vector_start</var>, 10*33de042dSApple OSS Distributions <strong>emulation_vector_t</strong> <var>emulation_vector</var>, 11*33de042dSApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>emulation_vector_count</var><strong>);</strong> 12*33de042dSApple OSS Distributions</pre> 13*33de042dSApple OSS Distributions<h3>PARAMETERS</h3> 14*33de042dSApple OSS Distributions<dl> 15*33de042dSApple OSS Distributions<p> 16*33de042dSApple OSS Distributions<dt> <var>task</var> 17*33de042dSApple OSS Distributions<dd> 18*33de042dSApple OSS Distributions[in task send right] 19*33de042dSApple OSS DistributionsThe port for the task for which to establish the 20*33de042dSApple OSS Distributionssystem call handler. 21*33de042dSApple OSS Distributions<p> 22*33de042dSApple OSS Distributions<dt> <var>vector_start</var> 23*33de042dSApple OSS Distributions<dd> 24*33de042dSApple OSS Distributions[in scalar] 25*33de042dSApple OSS DistributionsThe syscall number corresponding to the first element of 26*33de042dSApple OSS Distributions<var>emulation_vector</var>. 27*33de042dSApple OSS Distributions<p> 28*33de042dSApple OSS Distributions<dt> <var>emulation_vector</var> 29*33de042dSApple OSS Distributions<dd> 30*33de042dSApple OSS Distributions[pointer to in array of <strong>vm_address_t</strong>] 31*33de042dSApple OSS DistributionsAn array of routine entrypoints 32*33de042dSApple OSS Distributionsfor the system calls starting with syscall number <var>vector_start</var>. 33*33de042dSApple OSS Distributions<p> 34*33de042dSApple OSS Distributions<dt> <var>emulation_vector_count</var> 35*33de042dSApple OSS Distributions<dd> 36*33de042dSApple OSS Distributions[in scalar] 37*33de042dSApple OSS DistributionsThe number of elements in <var>emulation_vector</var>. 38*33de042dSApple OSS Distributions</dl> 39*33de042dSApple OSS Distributions<h3>DESCRIPTION</h3> 40*33de042dSApple OSS Distributions<p> 41*33de042dSApple OSS DistributionsThe <strong>task_set_emulation_vector</strong> function establishes 42*33de042dSApple OSS Distributionsa handler within the task 43*33de042dSApple OSS Distributionsfor a set of system calls. When a thread executes a system call 44*33de042dSApple OSS Distributionswith one of these 45*33de042dSApple OSS Distributionsnumbers, the system call will be redirected to the corresponding 46*33de042dSApple OSS Distributionsroutine within 47*33de042dSApple OSS Distributionsthe task's address space. 48*33de042dSApple OSS Distributions<p> 49*33de042dSApple OSS DistributionsThese emulation handler addresses are inherited by child processes. 50*33de042dSApple OSS Distributions<h3>NOTES</h3> 51*33de042dSApple OSS Distributions<p> 52*33de042dSApple OSS DistributionsThis interface is machine word length specific because of the 53*33de042dSApple OSS Distributionsvirtual addresses 54*33de042dSApple OSS Distributionsin the <var>emulation_vector</var> parameter. 55*33de042dSApple OSS Distributions<h3>RETURN VALUES</h3> 56*33de042dSApple OSS Distributions<p> 57*33de042dSApple OSS DistributionsOnly generic errors apply. 58*33de042dSApple OSS Distributions<h3>RELATED INFORMATION</h3> 59*33de042dSApple OSS Distributions<p> 60*33de042dSApple OSS DistributionsFunctions: 61*33de042dSApple OSS Distributions<a href="task_get_emulation_vector.html"><strong>task_get_emulation_vector</strong></a>. 62