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<div class="section" id="llvm-cxxfilt-llvm-symbol-name-demangler">
<h1>llvm-cxxfilt - LLVM symbol name demangler<a class="headerlink" href="#llvm-cxxfilt-llvm-symbol-name-demangler" title="Permalink to this headline">¶</a></h1>
<div class="section" id="synopsis">
<h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2>
<p><strong class="program">llvm-cxxfilt</strong> [<em>options</em>] [<em>mangled names…</em>]</p>
</div>
<div class="section" id="description">
<h2>DESCRIPTION<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
<p><strong class="program">llvm-cxxfilt</strong> is a symbol demangler that can be used as a replacement
for the GNU <strong class="program">c++filt</strong> tool. It takes a series of symbol names and
prints their demangled form on the standard output stream. If a name cannot be
demangled, it is simply printed as is.</p>
<p>If no names are specified on the command-line, names are read interactively from
the standard input stream. When reading names from standard input, each input
line is split on characters that are not part of valid Itanium name manglings,
i.e. characters that are not alphanumeric, ‘.’, ‘$’, or ‘_’. Separators between
names are copied to the output as is.</p>
</div>
<div class="section" id="example">
<h2>EXAMPLE<a class="headerlink" href="#example" title="Permalink to this headline">¶</a></h2>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> llvm-cxxfilt _Z3foov _Z3bari not_mangled
<span class="go">foo()</span>
<span class="go">bar(int)</span>
<span class="go">not_mangled</span>
<span class="gp">$</span> cat input.txt
<span class="go">| _Z3foov *** _Z3bari *** not_mangled |</span>
<span class="gp">$</span> llvm-cxxfilt < input.txt
<span class="go">| foo() *** bar(int) *** not_mangled |</span>
</pre></div>
</div>
</div>
<div class="section" id="options">
<h2>OPTIONS<a class="headerlink" href="#options" title="Permalink to this headline">¶</a></h2>
<dl class="std option">
<dt id="cmdoption-llvm-cxxfilt-format">
<span id="cmdoption-llvm-cxxfilt-s"></span><code class="sig-name descname"><span class="pre">--format</span></code><code class="sig-prename descclassname"><span class="pre">=<value></span></code><code class="sig-prename descclassname"><span class="pre">,</span> </code><code class="sig-name descname"><span class="pre">-s</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-cxxfilt-format" title="Permalink to this definition">¶</a></dt>
<dd><p>Mangling scheme to assume. Valid values are <code class="docutils literal notranslate"><span class="pre">auto</span></code> (default, auto-detect the
style) and <code class="docutils literal notranslate"><span class="pre">gnu</span></code> (assume GNU/Itanium style).</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-cxxfilt-help">
<span id="cmdoption-llvm-cxxfilt-h"></span><code class="sig-name descname"><span class="pre">--help</span></code><code class="sig-prename descclassname"></code><code class="sig-prename descclassname"><span class="pre">,</span> </code><code class="sig-name descname"><span class="pre">-h</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-cxxfilt-help" title="Permalink to this definition">¶</a></dt>
<dd><p>Print a summary of command line options.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-cxxfilt-no-strip-underscore">
<span id="cmdoption-llvm-cxxfilt-n"></span><code class="sig-name descname"><span class="pre">--no-strip-underscore</span></code><code class="sig-prename descclassname"></code><code class="sig-prename descclassname"><span class="pre">,</span> </code><code class="sig-name descname"><span class="pre">-n</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-cxxfilt-no-strip-underscore" title="Permalink to this definition">¶</a></dt>
<dd><p>Do not strip a leading underscore. This is the default for all platforms
except Mach-O based hosts.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-cxxfilt-strip-underscore">
<span id="cmdoption-llvm-cxxfilt-_"></span><span id="cmdoption-llvm-cxxfilt"></span><code class="sig-name descname"><span class="pre">--strip-underscore</span></code><code class="sig-prename descclassname"></code><code class="sig-prename descclassname"><span class="pre">,</span> </code><code class="sig-name descname"><span class="pre">-_</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-cxxfilt-strip-underscore" title="Permalink to this definition">¶</a></dt>
<dd><p>Strip a single leading underscore, if present, from each input name before
demangling. On by default on Mach-O based platforms.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-cxxfilt-types">
<span id="cmdoption-llvm-cxxfilt-t"></span><code class="sig-name descname"><span class="pre">--types</span></code><code class="sig-prename descclassname"></code><code class="sig-prename descclassname"><span class="pre">,</span> </code><code class="sig-name descname"><span class="pre">-t</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-cxxfilt-types" title="Permalink to this definition">¶</a></dt>
<dd><p>Attempt to demangle names as type names as well as function names.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-cxxfilt-version">
<code class="sig-name descname"><span class="pre">--version</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-cxxfilt-version" title="Permalink to this definition">¶</a></dt>
<dd><p>Display the version of the <strong class="program">llvm-cxxfilt</strong> executable.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-cxxfilt-arg-FILE">
<span id="cmdoption-llvm-cxxfilt-arg-file"></span><code class="sig-name descname"><span class="pre">@<FILE></span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-cxxfilt-arg-FILE" title="Permalink to this definition">¶</a></dt>
<dd><p>Read command-line options from response file <cite><FILE></cite>.</p>
</dd></dl>
</div>
<div class="section" id="exit-status">
<h2>EXIT STATUS<a class="headerlink" href="#exit-status" title="Permalink to this headline">¶</a></h2>
<p><strong class="program">llvm-cxxfilt</strong> returns 0 unless it encounters a usage error, in which
case a non-zero exit code is returned.</p>
</div>
<div class="section" id="see-also">
<h2>SEE ALSO<a class="headerlink" href="#see-also" title="Permalink to this headline">¶</a></h2>
<p><em class="manpage"><a class="manpage reference external" href="https://llvm.org/docs/CommandGuide/llvm-nm.html">llvm-nm(1)</a></em></p>
</div>
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