linux-packaging-mono/docs/deploy/mono-api-jit.html
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<body>
<div class="mapi-docs">
<h2>Synopsis</h2>
<p />These functions are used to get some runtime information
from the Just in Time compiler and also to control some
aspects of the initialization and shutdown of the runtime.
<div class="mapi-header">
typedef struct _MonoJitInfo MonoJitInfo;
</div>
<h3>Just-in-Time Compiled Method Information</h3>
<p />Use the `MonoJitInfo` API to get data about a JITed
method. These APIs are typically used by profiler modules
added to Mono.
<a name="api:mono_jit_info_table_find"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_jit_info_table_find</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">MonoJitInfo*
mono_jit_info_table_find (MonoDomain *domain, gpointer addr)
</div>
<p />
<div class="mapi-section">Parameters</div>
<table class="mapi-parameters"><tbody><tr><td><i>domain</i></td><td> Domain that you want to look up</td></tr><tr><td><i>addr</i></td><td> Points to an address with JITed code.</td></tr></tbody></table> <div class="mapi-section">Return value</div>
<div> <code>NULL</code> if the address does not belong to JITed code (it might be native
code or a trampoline) or a valid pointer to a <code>MonoJitInfo*</code> .</div>
<div class="mapi-section">Description</div>
<div>
<p />
Use this function to obtain a <code>MonoJitInfo*</code> object that can be used to get
some statistics. You should provide both the <i>domain</i> on which you will be
performing the probe, and an address. Since application domains can share code
the same address can be in use by multiple domains at once.
<p />
This does not return any results for trampolines.
<p /></div>
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_jit_info_get_code_size"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_jit_info_get_code_size</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">int
mono_jit_info_get_code_size (MonoJitInfo* ji)
</div>
<p />
<div class="mapi-section">Parameters</div>
<table class="mapi-parameters"><tbody><tr><td><i>ji</i></td><td> the JIT information handle</td></tr></tbody></table> <div class="mapi-section">Return value</div>
<div> Starting address with the native code.
</div>
<div class="mapi-section">Description</div>
<div>
<p />
Use this function to get the code size for the method described by
the <i>ji</i> object. You can use this plus the <code>mono_jit_info_get_code_start</code>
to determine the start and end of the native code.
<p /></div>
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_jit_info_get_code_start"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_jit_info_get_code_start</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">gpointer
mono_jit_info_get_code_start (MonoJitInfo* ji)
</div>
<p />
<div class="mapi-section">Parameters</div>
<table class="mapi-parameters"><tbody><tr><td><i>ji</i></td><td> the JIT information handle</td></tr></tbody></table> <div class="mapi-section">Return value</div>
<div> Starting address with the native code.
</div>
<div class="mapi-section">Description</div>
<div>
<p />
Use this function to get the starting address for the method described by
the <i>ji</i> object. You can use this plus the <code>mono_jit_info_get_code_size</code>
to determine the start and end of the native code.
<p /></div>
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_jit_info_get_method"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_jit_info_get_method</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">MonoMethod*
mono_jit_info_get_method (MonoJitInfo* ji)
</div>
<p />
<div class="mapi-section">Parameters</div>
<table class="mapi-parameters"><tbody><tr><td><i>ji</i></td><td> the JIT information handle</td></tr></tbody></table> <div class="mapi-section">Return value</div>
<div> The <code>MonoMethod</code> that represents the code tracked
by <i>ji</i>.</div>
<div class="mapi-section">Description</div>
<div>
<p />
Use this function to get the <code>MonoMethod*</code> that backs
the <i>ji</i> object.
<p /></div>
</div><!--mapi-description -->
</div><!--height container -->
<h3>Useful Debugging Functions</h3>
<p />These functions are useful when running the Mono VM inside
a debugger.
</div> <!-- class=mapi -->
<a name="api:mono_pmip"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_pmip</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">G_GNUC_UNUSED char *
mono_pmip (void *ip)
</div>
<p />
<div class="mapi-section">Parameters</div>
<table class="mapi-parameters"><tbody><tr><td><i>ip</i></td><td> an instruction pointer address</td></tr></tbody></table> <div class="mapi-section">Return value</div>
<div> the name of the method at address <i>ip</i>.
</div>
<div class="mapi-section">Description</div>
<div>
<p />
This method is used from a debugger to get the name of the
method at address <i>ip</i>. This routine is typically invoked from
a debugger like this:
<p />
(gdb) print mono_pmip ($pc)
<p /></div>
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_print_method_from_ip"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_print_method_from_ip</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">MONO_ATTR_USED void
mono_print_method_from_ip (void *ip)
</div>
<p />
<div class="mapi-section">Parameters</div>
<table class="mapi-parameters"><tbody><tr><td><i>ip</i></td><td> an instruction pointer address</td></tr></tbody></table> <div class="mapi-section">Description</div>
<div>
<p />
This method is used from a debugger to get the name of the
method at address <i>ip</i>.
<p />
This prints the name of the method at address <i>ip</i> in the standard
output. Unlike <code>mono_pmip</code> which returns a string, this routine
prints the value on the standard output.</div>
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_print_thread_dump"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_print_thread_dump</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">void
mono_print_thread_dump (void *sigctx)
</div>
<p />
<div class="mapi-section">Description</div>
<div>
<p />
Print information about the current thread to stdout.
<i>sigctx</i> can be <code>NULL</code>, allowing this to be called from gdb.</div>
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_threads_request_thread_dump"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_threads_request_thread_dump</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">void
mono_threads_request_thread_dump (void)
</div>
<p />
<div class="mapi-section">Description</div>
<div>
<p />
Ask all threads except the current to print their stacktrace to stdout.</div>
</div><!--mapi-description -->
</div><!--height container -->
<h3>Advanced</h3>
</div> <!-- class=mapi -->
<a name="api:mono_assemblies_init"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_assemblies_init</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">void
mono_assemblies_init (void)
</div>
<p />
<div class="mapi-section">Description</div>
<div>
<p />
Initialize global variables used by this module.</div>
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_assemblies_cleanup"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_assemblies_cleanup</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">void
mono_assemblies_cleanup (void)
</div>
<p />
<div class="mapi-section">Description</div>
<div>
<p />
Free all resources used by this module.</div>
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_environment_exitcode_get"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_environment_exitcode_get</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">gint32
mono_environment_exitcode_get (void)
</div>
<p />
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_environment_exitcode_set"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_environment_exitcode_set</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">void
mono_environment_exitcode_set (gint32 value)
</div>
<p />
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_install_runtime_cleanup"></a>
<div class="mapi">
<div class="mapi-entry "><code>mono_install_runtime_cleanup</code></div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">void
mono_install_runtime_cleanup (MonoDomainFunc func)
</div>
<p />
</div><!--mapi-description -->
</div><!--height container -->
</div> <!-- class=mapi -->
<a name="api:mono_runtime_set_shutting_down"></a>
<div class="mapi">
<div class="mapi-entry mapi-strike"><code>mono_runtime_set_shutting_down</code></div><br /><div class='mapi-deprecated'><b>Deprecated:</b> This function can break the shutdown sequence.</div>
<div class="mapi-height-container">
<div class="mapi-ptr-container"></div>
<div class="mapi-description">
<div class="mapi-ptr"></div>
<div class="mapi-declaration mapi-section">Syntax</div>
<div class="mapi-prototype">void
mono_runtime_set_shutting_down (void)
</div>
<p />
<div class="mapi-section">Description</div>
<div>
<p />
Invoked by <code>System.Environment.Exit</code> to flag that the runtime
is shutting down.</div>
</div><!--mapi-description -->
</div><!--height container -->