diff options
Diffstat (limited to 'erts/doc/src')
| -rw-r--r-- | erts/doc/src/erlang.xml | 28 |
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">"<major ver>.<minor ver>"</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> |