mentat/backtrace/fn.resolve.html
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<h1 class='fqn'><span class='in-band'>Function <a href='index.html'>backtrace</a>::<wbr><a class="fn" href=''>resolve</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>&#x2212;</span>]
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</span><a class='srclink' href='../src/backtrace/symbolize/mod.rs.html#39-41' title='goto source code'>[src]</a></span></h1>
<pre class='rust fn'>pub fn resolve&lt;F:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;<a class="struct" href="../backtrace/struct.Symbol.html" title="struct backtrace::Symbol">Symbol</a>)&gt;(addr: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.pointer.html">*mut </a><a class="enum" href="https://doc.rust-lang.org/nightly/std/os/raw/enum.c_void.html" title="enum std::os::raw::c_void">c_void</a>, cb: F)</pre><div class='docblock'><p>Resolve an address to a symbol, passing the symbol to the specified
closure.</p>
<p>This function will look up the given address in areas such as the local
symbol table, dynamic symbol table, or DWARF debug info (depending on the
activated implementation) to find symbols to yield.</p>
<p>The closure may not be called if resolution could not be performed, and it
also may be called more than once in the case of inlined functions.</p>
<p>Symbols yielded represent the execution at the specified <code>addr</code>, returning
file/line pairs for that address (if available).</p>
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">backtrace</span>;
<span class="kw">fn</span> <span class="ident">main</span>() {
<span class="ident">backtrace</span>::<span class="ident">trace</span>(<span class="op">|</span><span class="ident">frame</span><span class="op">|</span> {
<span class="kw">let</span> <span class="ident">ip</span> <span class="op">=</span> <span class="ident">frame</span>.<span class="ident">ip</span>();
<span class="ident">backtrace</span>::<span class="ident">resolve</span>(<span class="ident">ip</span>, <span class="op">|</span><span class="ident">symbol</span><span class="op">|</span> {
<span class="comment">// ...</span>
});
<span class="bool-val">false</span> <span class="comment">// only look at the top frame</span>
});
}</pre>
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