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| author | johannst <johannst@users.noreply.github.com> | 2024-11-09 10:42:31 +0000 |
|---|---|---|
| committer | johannst <johannst@users.noreply.github.com> | 2024-11-09 10:42:31 +0000 |
| commit | 07dda6914ac1354b53da50d1b43cf439102c1bcc (patch) | |
| tree | 716ce644a38715e36b6fa22e2b884839e06ef1c0 /trace_profile | |
| parent | 76d0ea3113933da30c1251e8c8b7016a677dfa42 (diff) | |
| download | notes-07dda6914ac1354b53da50d1b43cf439102c1bcc.tar.gz notes-07dda6914ac1354b53da50d1b43cf439102c1bcc.zip | |
deploy: 3d599bcbf6771def1076c3e9561bc748956dfc94
Diffstat (limited to 'trace_profile')
| -rw-r--r-- | trace_profile/ltrace.html | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/trace_profile/ltrace.html b/trace_profile/ltrace.html index ff424d0..d055b19 100644 --- a/trace_profile/ltrace.html +++ b/trace_profile/ltrace.html @@ -162,11 +162,25 @@ -o <file> ... log output into <file> -l <filter> . show who calls into lib matched by <filter> -C .......... demangle + -x <filter> . which symbol table entry points to trace + (can be of form sym_pattern@lib_pattern) </code></pre> <h1 id="example"><a class="header" href="#example">Example</a></h1> <p>List which program/libs call into <code>libstdc++</code>:</p> <pre><code class="language-bash">ltrace -l '*libstdc++*' -C -o ltrace.log ./main </code></pre> +<p>Trace symbols from <code>dlopen(3)</code>ed libraries.</p> +<pre><code class="language-bash"># Assume libfoo.so would be dynamically loaded via dlopen. +ltrace -x '@libfoo.so' + +# Trace all dlopened symbols. +ltrace -x '*' +# Trace all symbols from dlopened libraries which name match the +# pattern "liby*". +ltrace -x '@liby*' +# Trace symbol "foo" from all dlopened libraries matching the pattern. +ltrace -x 'foo@liby*' +</code></pre> </main> |