X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=doc%2Fman%2Flttng-enable-event.1.txt;h=87c831a4ac7f27f0a90e5ca2ec3a21e33431ee1c;hp=538a3b96b699ee00be5dba33f23cdd764b301e99;hb=c32f3198e7dd2379dceb405b4772a75091a711f5;hpb=fa72991a785e895947a2b947de27e2766fd95279 diff --git a/doc/man/lttng-enable-event.1.txt b/doc/man/lttng-enable-event.1.txt index 538a3b96b..87c831a4a 100644 --- a/doc/man/lttng-enable-event.1.txt +++ b/doc/man/lttng-enable-event.1.txt @@ -1,5 +1,6 @@ lttng-enable-event(1) ===================== +:revdate: 4 April 2019 NAME @@ -410,10 +411,10 @@ Dynamic user space probes ~~~~~~~~~~~~~~~~~~~~~~~~~ With the option:--userspace-probe option, you can instrument function entries of any user space binary (application or library) using either -an available symbol name or a SystemTap Statically Defined Tracepoints -(SDT, a DTrace-style marker) probe's provider and probe names. As of -this version, only SDT probes that are :not: surrounded by a reference -counter (semaphore). +an available symbol name or a SystemTap User-level Statically Defined +Tracing (USDT, a DTrace-style marker) probe's provider and probe names. +As of this version, only USDT probes that are :not: surrounded by a +reference counter (semaphore) are supported. The option:--userspace-probe option must be specified with the option:--kernel option because it uses Linux's uprobe feature to @@ -475,7 +476,7 @@ option:--probe='SOURCE':: option:--kernel domain option. 'SOURCE' is one of: + * Address (`0x` prefix supported) -* Symbol nane +* Symbol name * Symbol name and offset (__SYMBOL__++pass:[+]++__OFFSET__ format) option:--userspace-probe='SOURCE':: @@ -519,7 +520,7 @@ Examples: * `--userspace-probe=httpd:ap_run_open_htaccess` ++sdt:++__PATH__++:++__PROVIDER__++:++__NAME__:: - Dynamically instrument an SDT probe within a user space application + Dynamically instrument a USDT probe within a user space application or library. + -- @@ -534,9 +535,9 @@ This can be: `PATH` environment variable. __PROVIDER__++:++__NAME__:: - SDT provider and probe names. + USDT provider and probe names. + -For example, with the following SDT probe: +For example, with the following USDT probe: + [source,c] ----