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<div class="section" id="llvm-size-print-size-information">
<h1>llvm-size - print size information<a class="headerlink" href="#llvm-size-print-size-information" 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-size</strong> [<em>options</em>] [<em>input…</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-size</strong> is a tool that prints size information for binary files.
It is intended to be a drop-in replacement for GNU’s <strong class="program">size</strong>.</p>
<p>The tool prints size information for each <code class="docutils literal notranslate"><span class="pre">input</span></code> specified. If no input is
specified, the program prints size information for <code class="docutils literal notranslate"><span class="pre">a.out</span></code>. If “<code class="docutils literal notranslate"><span class="pre">-</span></code>” is
specified as an input file, <strong class="program">llvm-size</strong> reads a file from the standard
input stream. If an input is an archive, size information will be displayed for
all its members.</p>
</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-size-A">
<span id="cmdoption-llvm-size-a"></span><code class="sig-name descname"><span class="pre">-A</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-A" title="Permalink to this definition">¶</a></dt>
<dd><p>Equivalent to <a class="reference internal" href="#cmdoption-llvm-size-format"><code class="xref std std-option docutils literal notranslate"><span class="pre">--format</span></code></a> with a value of <code class="docutils literal notranslate"><span class="pre">sysv</span></code>.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-arch">
<code class="sig-name descname"><span class="pre">--arch</span></code><code class="sig-prename descclassname"><span class="pre">=<arch></span></code><a class="headerlink" href="#cmdoption-llvm-size-arch" title="Permalink to this definition">¶</a></dt>
<dd><p>Architecture(s) from Mach-O universal binaries to display information for.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-B">
<span id="cmdoption-llvm-size-b"></span><code class="sig-name descname"><span class="pre">-B</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-B" title="Permalink to this definition">¶</a></dt>
<dd><p>Equivalent to <a class="reference internal" href="#cmdoption-llvm-size-format"><code class="xref std std-option docutils literal notranslate"><span class="pre">--format</span></code></a> with a value of <code class="docutils literal notranslate"><span class="pre">berkeley</span></code>.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-common">
<code class="sig-name descname"><span class="pre">--common</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-common" title="Permalink to this definition">¶</a></dt>
<dd><p>Include ELF common symbol sizes in bss size for <code class="docutils literal notranslate"><span class="pre">berkeley</span></code> output format, or
as a separate section entry for <code class="docutils literal notranslate"><span class="pre">sysv</span></code> output. If not specified, these
symbols are ignored.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-d">
<code class="sig-name descname"><span class="pre">-d</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-d" title="Permalink to this definition">¶</a></dt>
<dd><p>Equivalent to <a class="reference internal" href="#cmdoption-llvm-size-radix"><code class="xref std std-option docutils literal notranslate"><span class="pre">--radix</span></code></a> with a value of <code class="docutils literal notranslate"><span class="pre">10</span></code>.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-l">
<code class="sig-name descname"><span class="pre">-l</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-l" title="Permalink to this definition">¶</a></dt>
<dd><p>Display verbose address and offset information for segments and sections in
Mach-O files in <code class="docutils literal notranslate"><span class="pre">darwin</span></code> format.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-format">
<code class="sig-name descname"><span class="pre">--format</span></code><code class="sig-prename descclassname"><span class="pre">=<format></span></code><a class="headerlink" href="#cmdoption-llvm-size-format" title="Permalink to this definition">¶</a></dt>
<dd><p>Set the output format to the <code class="docutils literal notranslate"><span class="pre"><format></span></code> specified. Available <code class="docutils literal notranslate"><span class="pre"><format></span></code>
options are <code class="docutils literal notranslate"><span class="pre">berkeley</span></code> (the default), <code class="docutils literal notranslate"><span class="pre">sysv</span></code> and <code class="docutils literal notranslate"><span class="pre">darwin</span></code>.</p>
<p>Berkeley output summarises text, data and bss sizes in each file, as shown
below for a typical pair of ELF files:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> llvm-size --format<span class="o">=</span>berkeley test.o test2.o
<span class="go"> text data bss dec hex filename</span>
<span class="go"> 182 16 5 203 cb test.elf</span>
<span class="go"> 82 8 1 91 5b test2.o</span>
</pre></div>
</div>
<p>For Mach-O files, the output format is slightly different:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> llvm-size --format<span class="o">=</span>berkeley macho.obj macho2.obj
<span class="go">__TEXT __DATA __OBJC others dec hex</span>
<span class="go">4 8 0 0 12 c macho.obj</span>
<span class="go">16 32 0 0 48 30 macho2.obj</span>
</pre></div>
</div>
<p>Sysv output displays size and address information for most sections, with each
file being listed separately:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> llvm-size --format<span class="o">=</span>sysv test.elf test2.o
<span class="go"> test.elf :</span>
<span class="go"> section size addr</span>
<span class="go"> .eh_frame 92 2097496</span>
<span class="go"> .text 90 2101248</span>
<span class="go"> .data 16 2105344</span>
<span class="go"> .bss 5 2105360</span>
<span class="go"> .comment 209 0</span>
<span class="go"> Total 412</span>
<span class="go"> test2.o :</span>
<span class="go"> section size addr</span>
<span class="go"> .text 26 0</span>
<span class="go"> .data 8 0</span>
<span class="go"> .bss 1 0</span>
<span class="go"> .comment 106 0</span>
<span class="go"> .note.GNU-stack 0 0</span>
<span class="go"> .eh_frame 56 0</span>
<span class="go"> .llvm_addrsig 2 0</span>
<span class="go"> Total 199</span>
</pre></div>
</div>
<p><code class="docutils literal notranslate"><span class="pre">darwin</span></code> format only affects Mach-O input files. If an input of a different
file format is specified, <strong class="program">llvm-size</strong> falls back to <code class="docutils literal notranslate"><span class="pre">berkeley</span></code>
format. When producing <code class="docutils literal notranslate"><span class="pre">darwin</span></code> format, the tool displays information about
segments and sections:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> llvm-size --format<span class="o">=</span>darwin macho.obj macho2.obj
<span class="go"> macho.obj:</span>
<span class="go"> Segment : 12</span>
<span class="go"> Section (__TEXT, __text): 4</span>
<span class="go"> Section (__DATA, __data): 8</span>
<span class="go"> total 12</span>
<span class="go"> total 12</span>
<span class="go"> macho2.obj:</span>
<span class="go"> Segment : 48</span>
<span class="go"> Section (__TEXT, __text): 16</span>
<span class="go"> Section (__DATA, __data): 32</span>
<span class="go"> total 48</span>
<span class="go"> total 48</span>
</pre></div>
</div>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-help">
<span id="cmdoption-llvm-size-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-size-help" title="Permalink to this definition">¶</a></dt>
<dd><p>Display a summary of command line options.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-m">
<code class="sig-name descname"><span class="pre">-m</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-m" title="Permalink to this definition">¶</a></dt>
<dd><p>Equivalent to <a class="reference internal" href="#cmdoption-llvm-size-format"><code class="xref std std-option docutils literal notranslate"><span class="pre">--format</span></code></a> with a value of <code class="docutils literal notranslate"><span class="pre">darwin</span></code>.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-o">
<code class="sig-name descname"><span class="pre">-o</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-o" title="Permalink to this definition">¶</a></dt>
<dd><p>Equivalent to <a class="reference internal" href="#cmdoption-llvm-size-radix"><code class="xref std std-option docutils literal notranslate"><span class="pre">--radix</span></code></a> with a value of <code class="docutils literal notranslate"><span class="pre">8</span></code>.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-radix">
<code class="sig-name descname"><span class="pre">--radix</span></code><code class="sig-prename descclassname"><span class="pre">=<value></span></code><a class="headerlink" href="#cmdoption-llvm-size-radix" title="Permalink to this definition">¶</a></dt>
<dd><p>Display size information in the specified radix. Permitted values are <code class="docutils literal notranslate"><span class="pre">8</span></code>,
<code class="docutils literal notranslate"><span class="pre">10</span></code> (the default) and <code class="docutils literal notranslate"><span class="pre">16</span></code> for octal, decimal and hexadecimal output
respectively.</p>
<p>Example:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> llvm-size --radix<span class="o">=</span><span class="m">8</span> test.o
<span class="go"> text data bss oct hex filename</span>
<span class="go"> 0152 04 04 162 72 test.o</span>
<span class="gp">$</span> llvm-size --radix<span class="o">=</span><span class="m">10</span> test.o
<span class="go"> text data bss dec hex filename</span>
<span class="go"> 106 4 4 114 72 test.o</span>
<span class="gp">$</span> llvm-size --radix<span class="o">=</span><span class="m">16</span> test.o
<span class="go"> text data bss dec hex filename</span>
<span class="go"> 0x6a 0x4 0x4 114 72 test.o</span>
</pre></div>
</div>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-totals">
<span id="cmdoption-llvm-size-t"></span><code class="sig-name descname"><span class="pre">--totals</span></code><code class="sig-prename descclassname"></code><code class="sig-prename descclassname"><span class="pre">,</span> </code><code class="sig-name descname"><span class="pre">-t</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-totals" title="Permalink to this definition">¶</a></dt>
<dd><p>Applies only to <code class="docutils literal notranslate"><span class="pre">berkeley</span></code> output format. Display the totals for all listed
fields, in addition to the individual file listings.</p>
<p>Example:</p>
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="gp">$</span> llvm-size --totals test.elf test2.o
<span class="go"> text data bss dec hex filename</span>
<span class="go"> 182 16 5 203 cb test.elf</span>
<span class="go"> 82 8 1 91 5b test2.o</span>
<span class="go"> 264 24 6 294 126 (TOTALS)</span>
</pre></div>
</div>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-version">
<code class="sig-name descname"><span class="pre">--version</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-version" title="Permalink to this definition">¶</a></dt>
<dd><p>Display the version of the <strong class="program">llvm-size</strong> executable.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-x">
<code class="sig-name descname"><span class="pre">-x</span></code><code class="sig-prename descclassname"></code><a class="headerlink" href="#cmdoption-llvm-size-x" title="Permalink to this definition">¶</a></dt>
<dd><p>Equivalent to <a class="reference internal" href="#cmdoption-llvm-size-radix"><code class="xref std std-option docutils literal notranslate"><span class="pre">--radix</span></code></a> with a value of <code class="docutils literal notranslate"><span class="pre">16</span></code>.</p>
</dd></dl>
<dl class="std option">
<dt id="cmdoption-llvm-size-arg-FILE">
<span id="cmdoption-llvm-size-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-size-arg-FILE" title="Permalink to this definition">¶</a></dt>
<dd><p>Read command-line options from response file <code class="docutils literal notranslate"><span class="pre"><FILE></span></code>.</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-size</strong> exits with a non-zero exit code if there is an error.
Otherwise, it exits with code 0.</p>
</div>
<div class="section" id="bugs">
<h2>BUGS<a class="headerlink" href="#bugs" title="Permalink to this headline">¶</a></h2>
<p>To report bugs, please visit <<a class="reference external" href="https://bugs.llvm.org/">https://bugs.llvm.org/</a>>.</p>
</div>
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