xref: /xnu-10063.121.3/osfmk/man/task_get_emulation_vector.html (revision 2c2f96dc2b9a4408a43d3150ae9c105355ca3daa)
1*2c2f96dcSApple OSS Distributions<h2>task_get_emulation_vector</h2>
2*2c2f96dcSApple OSS Distributions<hr>
3*2c2f96dcSApple OSS Distributions<p>
4*2c2f96dcSApple OSS Distributions<strong>Function</strong> - Return an array identifying the target task's user-level system call handlers.
5*2c2f96dcSApple OSS Distributions<h3>SYNOPSIS</h3>
6*2c2f96dcSApple OSS Distributions<pre>
7*2c2f96dcSApple OSS Distributions<strong>kern_return_t   task_get_emulation_vector</strong>
8*2c2f96dcSApple OSS Distributions                <strong>(task_t</strong>                                    <var>task</var>,
9*2c2f96dcSApple OSS Distributions                 <strong>int</strong>                               <var>vector_start</var>,
10*2c2f96dcSApple OSS Distributions                 <strong>emulation_vector_t</strong>            <var>emulation_vector</var>,
11*2c2f96dcSApple OSS Distributions                 <strong>mach_msg_type_number_t*</strong> <var>emulation_vector_count</var><strong>);</strong>
12*2c2f96dcSApple OSS Distributions</pre>
13*2c2f96dcSApple OSS Distributions<h3>PARAMETERS</h3>
14*2c2f96dcSApple OSS Distributions<dl>
15*2c2f96dcSApple OSS Distributions<p>
16*2c2f96dcSApple OSS Distributions<dt> <var>task</var>
17*2c2f96dcSApple OSS Distributions<dd>
18*2c2f96dcSApple OSS Distributions[in task send right]
19*2c2f96dcSApple OSS DistributionsThe port for the task for which the system call
20*2c2f96dcSApple OSS Distributionshandler addresses are desired.
21*2c2f96dcSApple OSS Distributions<p>
22*2c2f96dcSApple OSS Distributions<dt> <var>vector_start</var>
23*2c2f96dcSApple OSS Distributions<dd>
24*2c2f96dcSApple OSS Distributions[out scalar]
25*2c2f96dcSApple OSS DistributionsThe syscall number corresponding to the first element of
26*2c2f96dcSApple OSS Distributions<var>emulation_vector</var>.
27*2c2f96dcSApple OSS Distributions<p>
28*2c2f96dcSApple OSS Distributions<dt> <var>emulation_vector</var>
29*2c2f96dcSApple OSS Distributions<dd>
30*2c2f96dcSApple OSS Distributions[out pointer to dynamic array of <strong>vm_address_t</strong>]
31*2c2f96dcSApple OSS DistributionsPointer to the returned
32*2c2f96dcSApple OSS Distributionsarray of routine entrypoints for the system calls starting with syscall
33*2c2f96dcSApple OSS Distributionsnumber <var>vector_start</var>.
34*2c2f96dcSApple OSS Distributions<p>
35*2c2f96dcSApple OSS Distributions<dt> <var>emulation_vector_count</var>
36*2c2f96dcSApple OSS Distributions<dd>
37*2c2f96dcSApple OSS Distributions[out scalar]
38*2c2f96dcSApple OSS DistributionsThe number of entries filled by the kernel.
39*2c2f96dcSApple OSS Distributions</dl>
40*2c2f96dcSApple OSS Distributions<h3>DESCRIPTION</h3>
41*2c2f96dcSApple OSS Distributions<p>
42*2c2f96dcSApple OSS DistributionsThe <strong>task_get_emulation_vector</strong> function returns the
43*2c2f96dcSApple OSS Distributionsuser-level syscall handler entrypoint addresses.
44*2c2f96dcSApple OSS Distributions<h3>NOTES</h3>
45*2c2f96dcSApple OSS Distributions<p>
46*2c2f96dcSApple OSS DistributionsThis interface is machine word length specific because of the
47*2c2f96dcSApple OSS Distributionsvirtual addresses in the <var>emulation_vector</var> parameter.
48*2c2f96dcSApple OSS Distributions<h3>RETURN VALUES</h3>
49*2c2f96dcSApple OSS Distributions<p>
50*2c2f96dcSApple OSS DistributionsOnly generic errors apply.
51*2c2f96dcSApple OSS Distributions<h3>RELATED INFORMATION</h3>
52*2c2f96dcSApple OSS Distributions<p>
53*2c2f96dcSApple OSS DistributionsFunctions:
54*2c2f96dcSApple OSS Distributions<a href="task_set_emulation_vector.html"><strong>task_set_emulation_vector</strong></a>.
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