1*fdd8201dSApple OSS Distributions<h2>task_set_emulation_vector</h2> 2*fdd8201dSApple OSS Distributions<hr> 3*fdd8201dSApple OSS Distributions<p> 4*fdd8201dSApple OSS Distributions<strong>Function</strong> - Establish the target task's user-level system call handlers. 5*fdd8201dSApple OSS Distributions<h3>SYNOPSIS</h3> 6*fdd8201dSApple OSS Distributions<pre> 7*fdd8201dSApple OSS Distributions<strong>kern_return_t task_set_emulation_vector</strong> 8*fdd8201dSApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*fdd8201dSApple OSS Distributions <strong>int</strong> <var>vector_start</var>, 10*fdd8201dSApple OSS Distributions <strong>emulation_vector_t</strong> <var>emulation_vector</var>, 11*fdd8201dSApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>emulation_vector_count</var><strong>);</strong> 12*fdd8201dSApple OSS Distributions</pre> 13*fdd8201dSApple OSS Distributions<h3>PARAMETERS</h3> 14*fdd8201dSApple OSS Distributions<dl> 15*fdd8201dSApple OSS Distributions<p> 16*fdd8201dSApple OSS Distributions<dt> <var>task</var> 17*fdd8201dSApple OSS Distributions<dd> 18*fdd8201dSApple OSS Distributions[in task send right] 19*fdd8201dSApple OSS DistributionsThe port for the task for which to establish the 20*fdd8201dSApple OSS Distributionssystem call handler. 21*fdd8201dSApple OSS Distributions<p> 22*fdd8201dSApple OSS Distributions<dt> <var>vector_start</var> 23*fdd8201dSApple OSS Distributions<dd> 24*fdd8201dSApple OSS Distributions[in scalar] 25*fdd8201dSApple OSS DistributionsThe syscall number corresponding to the first element of 26*fdd8201dSApple OSS Distributions<var>emulation_vector</var>. 27*fdd8201dSApple OSS Distributions<p> 28*fdd8201dSApple OSS Distributions<dt> <var>emulation_vector</var> 29*fdd8201dSApple OSS Distributions<dd> 30*fdd8201dSApple OSS Distributions[pointer to in array of <strong>vm_address_t</strong>] 31*fdd8201dSApple OSS DistributionsAn array of routine entrypoints 32*fdd8201dSApple OSS Distributionsfor the system calls starting with syscall number <var>vector_start</var>. 33*fdd8201dSApple OSS Distributions<p> 34*fdd8201dSApple OSS Distributions<dt> <var>emulation_vector_count</var> 35*fdd8201dSApple OSS Distributions<dd> 36*fdd8201dSApple OSS Distributions[in scalar] 37*fdd8201dSApple OSS DistributionsThe number of elements in <var>emulation_vector</var>. 38*fdd8201dSApple OSS Distributions</dl> 39*fdd8201dSApple OSS Distributions<h3>DESCRIPTION</h3> 40*fdd8201dSApple OSS Distributions<p> 41*fdd8201dSApple OSS DistributionsThe <strong>task_set_emulation_vector</strong> function establishes 42*fdd8201dSApple OSS Distributionsa handler within the task 43*fdd8201dSApple OSS Distributionsfor a set of system calls. When a thread executes a system call 44*fdd8201dSApple OSS Distributionswith one of these 45*fdd8201dSApple OSS Distributionsnumbers, the system call will be redirected to the corresponding 46*fdd8201dSApple OSS Distributionsroutine within 47*fdd8201dSApple OSS Distributionsthe task's address space. 48*fdd8201dSApple OSS Distributions<p> 49*fdd8201dSApple OSS DistributionsThese emulation handler addresses are inherited by child processes. 50*fdd8201dSApple OSS Distributions<h3>NOTES</h3> 51*fdd8201dSApple OSS Distributions<p> 52*fdd8201dSApple OSS DistributionsThis interface is machine word length specific because of the 53*fdd8201dSApple OSS Distributionsvirtual addresses 54*fdd8201dSApple OSS Distributionsin the <var>emulation_vector</var> parameter. 55*fdd8201dSApple OSS Distributions<h3>RETURN VALUES</h3> 56*fdd8201dSApple OSS Distributions<p> 57*fdd8201dSApple OSS DistributionsOnly generic errors apply. 58*fdd8201dSApple OSS Distributions<h3>RELATED INFORMATION</h3> 59*fdd8201dSApple OSS Distributions<p> 60*fdd8201dSApple OSS DistributionsFunctions: 61*fdd8201dSApple OSS Distributions<a href="task_get_emulation_vector.html"><strong>task_get_emulation_vector</strong></a>. 62