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-rw-r--r--erts/doc/src/erlang.xml28
1 files changed, 27 insertions, 1 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index da0ef8fbe2..9c8c033e29 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -5213,6 +5213,8 @@ ok
<name name="system_info" arity="1" clause_i="48"/>
<name name="system_info" arity="1" clause_i="49"/>
<name name="system_info" arity="1" clause_i="50"/>
+ <name name="system_info" arity="1" clause_i="51"/>
+ <name name="system_info" arity="1" clause_i="52"/>
<fsummary>Information about the system</fsummary>
<desc>
<p>Returns various information about the current system
@@ -5306,6 +5308,29 @@ ok
used by the runtime system. It will be on the form
<seealso marker="erts:erl_driver#version_management">"&lt;major ver&gt;.&lt;minor ver&gt;"</seealso>.</p>
</item>
+ <tag><c>dynamic_trace</c></tag>
+ <item>
+ <p>Returns an atom describing the dynamic trace framework
+ compiled into the virtual machine. It can currently be either
+ <c>dtrace</c>, <c>systemtap</c> or <c>none</c>. For a
+ commercial or standard build, this is always <c>none</c>,
+ the other return values indicate a custom configuration
+ (e.g. <c>./configure --with-dynamic-trace=dtrace</c>). See
+ the <seealso marker="runtime_tools:dyntrace">dyntrace
+ </seealso> manual page and the
+ <c>README.dtrace</c>/<c>README.systemtap</c> files in the
+ Erlang source code top directory for more information
+ about dynamic tracing.</p>
+ </item>
+ <tag><c>dynamic_trace_probes</c></tag>
+ <item>
+ <p>Returns a <c>boolean()</c> indicating if dynamic trace probes
+ (either dtrace or systemtap) are built into the
+ emulator. This can only be <c>true</c> if the virtual
+ machine was built for dynamic tracing
+ (i.e. <c>system_info(dynamic_trace)</c> returns
+ <c>dtrace</c> or <c>systemtap</c>).</p>
+ </item>
<tag><c>elib_malloc</c></tag>
<item>
<p>This option will be removed in a future release.
@@ -5588,7 +5613,8 @@ ok
<seealso marker="#system_info_schedulers">erlang:system_info(schedulers)</seealso>,
and
<seealso marker="#system_flag_schedulers_online">erlang:system_flag(schedulers_online, SchedulersOnline)</seealso>.
- </p>
+ </p> <name name="system_info" arity="1" clause_i="50"/>
+
</item>
<tag><c>smp_support</c></tag>
<item>